EN ISO 15136-2:2006

Petroleum and natural gas industries - Progressing cavity pump systems for artificial lift - Part 2: Surface-drive systems (ISO 15136-2:2006)

ISO 15136-2:2006 provides requirements for the design, design verification and validation, manufacturing and data control, performance ratings and repair of progressing cavity pump surface drive systems for use in the petroleum and natural gas industry. ISO 15136-2:2006 is applicable to those products meeting the definition of surface drive systems. Additionally, informative annexes provide information on brake system selection, installation, and operation; and sucker rod selection and use.
Equipment not covered by ISO 15136-2:2006, unless integral by design, includes bottom drive systems, sucker rods, polished rod clamps, stuffing boxes, electrical controls, instrumentation, external power transmission devices, auxiliary equipment, such as belts, sheaves and equipment guards. These items might or might not be covered by other International Standards.

Erdöl- und Erdgasindustrie - Exzenterschneckentiefpump-Fördersysteme - Teil 2: Übertage-Antriebssysteme (ISO 15136-2:2006)

Industries du pétrole et du gaz naturel - Pompes de fond à cavité progressive pour activation des puits - Partie 2: Systèmes d'entraînement en surface (ISO 15136-2:2006)

L'ISO 15136-2:2006 fournit des exigences applicables à la conception, à la vérification et à la validation de la conception, à la fabrication et à la maîtrise des données, aux caractéristiques nominales de fonctionnement et à la réparation des systèmes d'entraînement en surface de pompes à cavités progressantes à l'usage de l'industrie du pétrole et du gaz naturel. Elle est applicable aux produits répondant à la définition de systèmes d'entraînement en surface. Des annexes informatives fournissent en outre des informations sur la sélection, l'installation et le fonctionnement des systèmes de freinage, ainsi que sur la sélection et l'utilisation des tiges de pompage.
Les équipements non couverts par l'ISO 15136-2:2006, à moins qu'ils n'en soient partie intégrante par conception, comprennent les systèmes d'entraînement en fond de puits, les tiges de pompage, les dispositifs de serrage de tiges polies, les boîtes à garniture (presse-étoupe), les commandes électriques, l'instrumentation, les dispositifs extérieurs de transmission d'énergie, le matériel auxiliaire tel que courroies, poulies et protecteurs d'équipements. Ces éléments pourraient être couverts ou non par d'autres Normes internationales.

Industrija nafte in zemeljskega plina - Vijačni črpalni sistemi za prečrpavanje na površino - 2. del: Površinski pogonski sistemi (ISO 51136-2:2006)

General Information

• Status: Published
• Publication Date: 31-May-2006
• Withdrawal Date: 30-Dec-2006
• ICS: 75.180.10 - Exploratory, drilling and extraction equipment
• Technical Committee: CEN/TC 12 - Materials, equipment and offshore structures for petroleum and natural gas industries
• Drafting Committee: CEN/TC 12 - Materials, equipment and offshore structures for petroleum and natural gas industries
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 01-Jun-2006
• Completion Date: 01-Jun-2006
• Ref Project: SIST EN ISO 15136-2:2007 - Petroleum and natural gas industries - Progressing cavity pump systems for artificial lift - Part 2: Surface-drive systems (ISO 15136-2:2006)

Overview

EN ISO 15136-2:2006 (ISO 15136-2:2006) specifies requirements for progressing cavity pump (PCP) surface‑drive systems used for artificial lift in the petroleum and natural gas industries. It covers design, design verification and validation, manufacturing and data control, performance ratings and repair of surface‑drive systems. Informative annexes provide guidance on brake system selection/installation/operation and sucker rod selection and use. Equipment outside the scope (unless integral) includes bottom drives, separate sucker rods, polished rod clamps, stuffing boxes, electrical controls, instrumentation and external power transmission accessories.

Key topics and requirements

• Design and functional specification
  • Requirements for system selection, functional characteristics and environmental compatibility.
  • Compatibility with related well equipment where integral.
• Design verification & validation
  • Procedures for verifying design criteria and validating product function prior to release.
  • Allows for product functional testing and additional testing as required.
• Manufacturing, data control & quality
  • Supplier documentation, product identification and data-control requirements.
  • Two quality documentation grades (Q2 standard, Q1 for additional documentation); supplemental purchaser requirements may be specified.
• Performance ratings & repair
  • Requirements for rating system performance and approved repair practices.
• Materials & testing
  • Normative references to material and testing standards (e.g., ISO 3601 for O‑rings, ISO 9000 quality terminology, ISO 9712 NDT personnel qualifications, ISO 15156 for sour environments, ASTM and hardness test references).
• Informative annexes
  • Brake system evaluation and test methods, installation and operation guidelines, equipment selection guidance, and sucker rod use in PCP rotary pumping applications.

Applications and users

EN ISO 15136-2 is intended for:

• Manufacturers and suppliers of PCP surface‑drive systems to define minimum design, testing and documentation requirements.
• Operators, purchasers and procurement teams specifying artificial lift surface drives for new wells or replacements.
• Design and mechanical engineers, QA/QC personnel, and service companies involved in selection, installation, commissioning and repair of PCP surface‑drive equipment. Practical uses include drafting purchase specifications, conducting supplier assessments, validating factory testing, and ensuring compatibility with well conditions and materials requirements (including H2S environments per ISO 15156).

Related standards

• ISO 15136-1 (PCP pumps - downhole equipment)
• ISO 9000 (quality management fundamentals and vocabulary)
• ISO 3601 (O‑rings), ISO 9712 (NDT personnel)
• ISO 15156 (materials for H2S environments)
• Sampling/testing references: ISO 2859, ASTM A370, ASTM D2240

This standard helps align supplier offerings and purchaser expectations for safe, documented and testable PCP surface‑drive systems in petroleum and natural gas artificial‑lift applications.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2007
,QGXVWULMDQDIWHLQ]HPHOMVNHJDSOLQD9LMDþQLþUSDOQLVLVWHPL]DSUHþUSDYDQMHQD
SRYUãLQRGHO3RYUãLQVNLSRJRQVNLVLVWHPL,62
Petroleum and natural gas industries - Progressing cavity pump systems for artificial lift -
Part 2: Surface-drive systems (ISO 15136-2:2006)
Erdöl- und Erdgasindustrie - Exzenterschneckentiefpump-Fördersysteme - Teil 2:
Übertage-Antriebssysteme (ISO 15136-2:2006)
Industries du pétrole et du gaz naturel - Pompes de fond a cavité progressive pour
activation des puits - Partie 2: Systemes d'entraînement en surface (ISO 15136-2:2006)
Ta slovenski standard je istoveten z: EN ISO 15136-2:2006
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 15136-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2006
ICS 75.180.10
English Version
Petroleum and natural gas industries - Progressing cavity pump
systems for artificial lift - Part 2: Surface-drive systems (ISO
15136-2:2006)
Industries du pétrole et du gaz naturel - Pompes de fond à Erdöl- und Erdgasindustrie - Exzenterschneckentiefpump-
cavité progressive pour activation des puits - Partie 2: Fördersysteme - Teil 2: Übertage-Antriebssysteme (ISO
Systèmes d'entraînement en surface (ISO 15136-2:2006) 15136-2:2006)
This European Standard was approved by CEN on 19 May 2006.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15136-2:2006: E
worldwide for CEN national Members.

Foreword
This document (EN ISO 15136-2:2006) has been prepared by Technical Committee ISO/TC 67
"Materials, equipment and offshore structures for petroleum and natural gas industries" in
collaboration with Technical Committee CEN/TC 12 "Materials, equipment and offshore
structures for petroleum, petrochemical and natural gas industries", the secretariat of which is
held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of
an identical text or by endorsement, at the latest by December 2006, and conflicting national
standards shall be withdrawn at the latest by December 2006.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Endorsement notice
The text of ISO 15136-2:2006 has been approved by CEN as EN ISO 15136-2:2006 without any
modifications.
INTERNATIONAL ISO
STANDARD 15136-2
First edition
2006-06-01
Petroleum and natural gas industries —
Progressing cavity pump systems for
artificial lift —
Part 2:
Surface-drive systems
Industries du pétrole et du gaz naturel — Pompes de fond à cavité
progressive pour activation des puits —
Partie 2: Systèmes d'entraînement en surface

Reference number
ISO 15136-2:2006(E)
©
ISO 2006
ISO 15136-2:2006(E)
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ii © ISO 2006 – All rights reserved

ISO 15136-2:2006(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 2
4 Abbreviated terms . 5
5 Functional specification. 6
5.1 General. 6
5.2 Surface-drive system type selection . 6
5.3 Functional characteristics . 6
5.4 Environmental compatibility. 7
5.5 Compatibility with related well equipment. 7
5.6 Design validation and product functional testing . 7
5.7 Quality control documentation. 7
6 Technical specification . 8
6.1 General requirements. 8
6.2 Technical characteristics. 8
6.3 Design criteria . 8
6.4 Design verification. 10
6.5 Design validation . 10
6.6 Product functional test. 10
6.7 Additional testing. 11
6.8 Allowable design changes. 11
6.9 Design scaling. 11
7 Supplier requirements. 11
7.1 General. 11
7.2 Documentation and data control. 11
7.3 Product identification. 13
7.4 Quality control documentation. 13
7.5 Design verification. 17
7.6 Product functional testing . 17
8 Repair. 17
9 Preparation for shipment . 17
10 Product application changes. 17
Annex A (normative) Requirements for elastomers and non-metallic materials . 18
Annex B (informative) Brake system evaluation method. 20
Annex C (informative) Installation guidelines . 34
Annex D (informative) Operation guidelines . 36
Annex E (informative) Equipment selection guidelines . 38
Annex F (informative) User/purchaser functional specification form. 39
Annex G (informative) Brake system test methods . 41
Annex H (informative) Selection and use of sucker rods in PCP rotary pumping applications . 44
Bibliography . 49
ISO 15136-2:2006(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 15136-2 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures
for petroleum, petrochemical and natural gas industries, Subcommittee SC 4, Drilling and production
equipment.
ISO 15136 consists of the following parts:
⎯ Downhole equipment for petroleum and natural gas industries — Progressing cavity pump systems for
artificial lift — Part 1: Pumps
⎯ Petroleum and natural gas industries — Progressing cavity pump systems for artificial lift — Part 2:
Surface-drive systems
iv © ISO 2006 – All rights reserved

ISO 15136-2:2006(E)
Introduction
This part of ISO 15136 has been developed by users/purchasers and suppliers/manufacturers of progressing
cavity pump surface-drive systems and is intended for use in the petroleum and natural gas industry
worldwide. ISO 15136-2 provides requirements and information to both parties in the selection, manufacturing,
testing, and using progressing cavity pump surface-drive systems as defined in the scope. Further,
ISO 15136-2 addresses supplier requirements, which set the minimum parameters with which suppliers shall
comply to claim conformity with this International Standard.
ISO 15136-2 has been structured to allow for grades of increased requirements in quality control
documentation. These variations allow the user/purchaser to select the grade that is required for a specific
application.
There are two quality control documentation grades, which provide the user/purchaser the choice of
requirements to meet their preference or application. Quality control documentation grade Q2 is the standard
grade offered and quality control documentation grade Q1 provides additional documentation. Additional
requirements can be specified by the user/purchaser as supplemental requirements.
Users of this International Standard should be aware that requirements above those outlined in this
International Standard may be needed for individual applications. This International Standard is not intended
to inhibit a supplier/manufacturer from offering, or the user/purchaser from accepting, alternative equipment or
engineering solutions. This may be particularly applicable where there is innovative or developing technology.
Where an alternative is offered, the vendor should identify any variations from this part of ISO 15136-2 and
provide details.
INTERNATIONAL STANDARD ISO 15136-2:2006(E)

Petroleum and natural gas industries — Progressing cavity
pump systems for artificial lift —
Part 2:
Surface-drive systems
1 Scope
This part of ISO 15136 provides requirements for the design, design verification and validation, manufacturing
and data control, performance ratings and repair of progressing cavity pump surface-drive systems for use in
the petroleum and natural gas industry. This part of ISO 15136 is applicable to those products meeting the
definition of surface-drive systems. Additionally, informative annexes provide information on brake system
selection, installation, and operation; and sucker rod selection and use.
Equipment not covered by this part of ISO 15136, unless integral by design, includes bottom drive systems,
sucker rods, polished rod clamps, stuffing boxes, electrical controls, instrumentation, external power
transmission devices, auxiliary equipment, such as belts, sheaves and equipment guards. These items might
or might not be covered by other International Standards.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by
acceptance quality level (AQL) for lot-by-lot inspection
ISO 2859-2, Sampling procedures for inspection by attributes — Part 2: Sampling plans indexed by limiting
quality (LQ) for isolated lot inspection
ISO 3601-1, Fluid power systems — O-rings — Part 1: Inside diameters, cross-sections, tolerances and size
identification code
ISO 3601-3, Fluid power systems — O-rings — Part 3: Quality acceptance criteria
ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method
ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method
ISO 6508-1, Metallic materials — Rockwell hardness test — Part 1: Test method (Scales A, B, C, D, E, F, G,
H, K, N, T)
ISO 9000, Quality management systems — Fundamentals and vocabulary
ISO 9712, Non-destructive testing — Qualification and certification of personnel
ISO 15136-2:2006(E)
ISO 15156 (all parts), Petroleum and natural gas industries — Materials for use in H S-containing
environments in oil and gas production
ASTM A370, Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM D1415, Standard Test Method for Rubber Property — International Hardness
ASTM D2240, Standard Test Method for Rubber Property — Durometer Hardness
ASTM E140, Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers
Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, and Scleroscope Hardness
MIL STD 105E, Sampling Procedures and Tables for Inspection by Attributes
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 9000 and the following apply.
3.1
applied torque
torque that is applied to the top of the drive string by the surface-drive system
3.2
auxiliary equipment
equipment or components that are outside the scope of this part of ISO 15136 and are typically selected
and/or installed by the user/purchaser; examples are sheaves and belts, motors, polished rod clamps, guards,
motor controllers and torque limiting devices
3.3
axial-load capacity
maximum allowable load that can be supported by the structure independent of auxiliary equipment
capabilities
3.4
backspin
process by which the progressing cavity pump, the drive string and the power train turn in the direction
opposite to normal operation and which is driven by the release of the torsional and fluid potential energy
3.5
backspin-resisting torque
torque applied to the drive string to resist backspin
3.6
brake-engagement speed
rotational speed at which the brake system engages during backspin
3.7
bottom-drive system
PCP drive system utilizing a downhole prime mover
3.8
brake system
system that provides controlled resistance to backspin
3.9
drive string
device transmitting power (usually sucker rods) between the surface-drive system and the PCP
2 © ISO 2006 – All rights reserved

ISO 15136-2:2006(E)
3.10
dynamic fluid level
depth from the wellhead to the top of the liquid column in the casing-tubing annulus under dynamic conditions
3.11
direct drive
type of surface-drive system with no internal gear reduction
3.12
driver sheave
pulley mounted on the prime mover shaft in belt driven surface-drive systems
3.13
driven sheave
pulley mounted on the main shaft in belt-driven surface-drive systems
3.14
flow rate
volume of fluid pumped per unit of time
3.15
fluid potential energy
energy stored in the production system due to the difference in fluid levels between the production tubing and
the tubing-casing annulus
3.16
fluid head
pressure exerted by the fluid above the downhole pump
3.17
friction torque
resistance to rotation of the drive string (inside the tubing) and the rotor (inside the stator) that is dependent
upon factors including (but not limited to) well depth and trajectory, pump geometry and interference fit
between rotor and stator, and stuffing box characteristics
3.18
gear-reduction drive
type of surface-drive system with an internal gear reduction
3.19
heat capacity
total energy absorbed by the surface-drive system divided by the change in surface-drive system temperature
3.20
heat dissipation rate
rate at which energy is dissipated from the surface-drive system to its surroundings in the form of heat
3.21
hydraulic drive
type of surface-drive system powered by a hydraulic prime mover
3.22
hydraulic torque
torque induced by the differential pressure across the PCP acting on its effective cross-sectional area
3.23
input power rating
maximum allowable power, which may be supplied to the surface-drive system
ISO 15136-2:2006(E)
3.24
job lot
batch of material or components that have undergone the same process or series of processes
3.25
job-lot traceability
the ability of parts to be identified as originating from a job lot which identifies the included heat(s)
3.26
main shaft
central shaft of the surface drive that is connected to the drive string
3.27
maximum backspin speed
maximum speed allowed at the main shaft that will not compromise the integrity of the surface-drive system or
auxiliary equipment
3.28
maximum dynamic fluid level
maximum operating fluid level in the annulus as measured from the surface that ensures that, after a
shutdown, the rotating speed does not exceed the maximum backspin speed for the surface-drive system
3.29
maximum operating torque
maximum allowable operating torque applied at the main shaft as specified by the supplier/manufacturer
3.30
moment of inertia
ratio of the torque applied to the rotating components of the surface-drive system divided by the angular
acceleration of those components about a common axis
3.31
operating speed range
range defined by the minimum and maximum operating speeds for the surface-drive system as specified by
the supplier/manufacturer
3.32
operating temperature range
range defined by the minimum and maximum operating temperatures for the surface-drive system as
specified by the supplier/manufacturer
3.33
polished-rod stick-up
length of polished rod extending above the top of the polished rod clamp
3.34
power train
components of the surface-drive system and auxiliary equipment which transmit power from the prime mover
into the drive string
NOTE Includes belts, sheaves, gears, direct coupling or other combinations to achieve the required output.
3.35
prime mover
motor (typically hydraulic, electric or internal combustion) providing the torque to the power train
4 © ISO 2006 – All rights reserved

ISO 15136-2:2006(E)
3.36
production system
assembly of equipment that includes the downhole pump, drive string, production tubing, well casing, surface-
drive system, and auxiliary equipment
3.37
progressing cavity pump
pump consisting of a stator and rotor whose geometry of assembly is such that it creates two or more series of
lenticular, spiral, separated cavities
3.38
repair
activities that include disassembly, re-assembly and testing with or without the replacement of parts and can
include, machining, welding, heat treating or other manufacturing operations
3.39
surface-drive system
assembly of equipment that, when installed, transmits torque from a prime mover into a progressing cavity
pump drive string, supports the loads transmitted by the drive string and controls backspin of the drive string
as applicable
3.40
thrust bearing
device within a surface-drive system that supports the axial load transmitted by the drive string while allowing
it to rotate
3.41
thrust-bearing rating
bearing manufacturer’s published statistical ratings that serve as guidelines in the prediction of bearing life
expectancies under given conditions
3.42
torque-limiting device
device that prevents the surface-drive system from applying a torque to the drive string greater than a
prescribed value
3.43
torsional energy
energy stored in the drive string due to torque-induced elastic deformation
4 Abbreviated terms
ANSI American National Standards Institute
ASME American Society of Mechanical Engineers
ASTM American Society for Testing and Materials
AQL Acceptance quality limit
IEC International Electrotechnical Commission
mo month
NACE National Association of Corrosion Engineers
NDE Nondestructive examination
PCP Progressing cavity pump
ISO 15136-2:2006(E)
SAE Society of Automotive Engineers
SNT (ASNT) American Society for Nondestructive Testing
yr year
5 Functional specification
5.1 General
The user/purchaser shall prepare a functional specification to order products which conform to this part of
ISO 15136 and shall specify the following requirements and operating conditions as appropriate, and/or
identify the supplier’s/manufacturer’s specific product. This information is used by the supplier/manufacturer to
recommend the surface-drive systems and/or components for the application. These requirements and
operating conditions may be conveyed by means of a dimensional drawing, data sheet, or other suitable
communication in a format that conforms to this part of ISO 15136. An example of a functional specification
form for this information is provided as Annex F.
The user/purchaser shall ensure that the expected operating axial load, torque, speed, surface-drive system
temperature, power and braking requirements (where required) do not exceed the surface-drive system's
ratings. The maximum operating torque and the maximum dynamic fluid level are a function of the ability of
the surface-drive system to dissipate the energy stored in the production system after a shutdown, and may
be determined by using the data provided with the surface-drive technical specifications in an analytical
backspin model, such as the one described in Annex B.
5.2 Surface-drive system type selection
The user/purchaser shall select a drive system type (exclusive of prime mover type):
a) gear-reduction drive;
b) direct drive;
c) hydraulic drive.
5.3 Functional characteristics
5.3.1 General
The user/purchaser shall provide the operating speed and input power (torque), and axial load.
5.3.2 Application parameters
Functional characteristics are typically determined based on application parameters. These parameters may
include but are not limited to
a) anticipated flow rate, tubing head pressure at surface of produced fluid and pump intake pressure;
b) produced fluid composition (constituents, viscosity, specific gravity, temperature, et al.);
c) anticipated PCP model to be used;
d) PCP setting depth;
e) tubular sizes/weights/materials;
f) drive string diameter, type and material.
6 © ISO 2006 – All rights reserved

ISO 15136-2:2006(E)
5.4 Environmental compatibility
User/purchaser shall specify the environmental compatibility requirements. The following are typical topics for
consideration:
a) ambient temperature;
b) surface-drive start-up temperature;
c) high ultraviolet exposure;
d) high relative humidity (high dew point);
e) dusty or sandy environment;
f) areas with unique environmental or safety concerns;
g) areas with salt spray;
h) noise considerations;
i) hazardous location classification.
5.5 Compatibility with related well equipment
The user/purchaser shall specify, where applicable, the interface connection designs and material
requirements, and external dimensional limitations, needed to assure that the product shall conform to the
intended application:
a) size, type, material, configuration and interface dimensions of the connection between the product and
other well equipment such as: stuffing box, polished rod, wellhead, et al.;
b) size, type and configuration of other products passing through or over the product such as polished rod,
sucker rods (see Annex H), et al.;
c) size, type and configuration of other products used with or in conjunction with this product;
d) proximity of unrelated equipment that can impact the delivery, installation, operation, servicing or removal
of the product;
e) wellhead-angle from the vertical;
f) prime mover interface requirements.
5.6 Design validation and product functional testing
Design validation and product functional requirements are provided for these products; the user/purchaser is
not required to select a grade for these requirements.
5.7 Quality control documentation
Two quality control documentation grades are stipulated in 7.4. The user/purchaser shall specify one of the
following quality control documentation grades. If no quality control documentation grade is specified, grade
Q2 shall be supplied.
⎯ Q1: enhanced quality control documentation requirements, which include the requirements of Q2;
⎯ Q2: standard quality control documentation requirements.
ISO 15136-2:2006(E)
6 Technical specification
6.1 General requirements
The supplier/manufacturer shall prepare the technical specification that responds to the requirements defined
in the functional specification.
6.2 Technical characteristics
The following data are included, as applicable, with units of measure:
a) surface-drive system type;
b) speed range;
c) maximum operating torque;
d) axial load capacity;
e) sheave size range;
f) main shaft dimensions;
g) polished rod size capability;
h) wellhead/drive connection type;
i) main shaft type (hollow vs. solid);
j) physical dimensions and weight;
k) prime mover type and interface requirements;
l) gear reduction ratio;
m) operating temperature range;
n) responses to special requirements requested by the user/purchaser as specified in Clause 5;
o) system body maximum pressure, where applicable.
6.3 Design criteria
6.3.1 Materials
The supplier/manufacturer shall state that the defined materials have performance characteristics that are
suitable for all parameters specified in the functional specification. This applies to metallic and non-metallic
components. The supplier/manufacturer shall have documented specifications for all materials used in the
manufacture of the product.
6.3.2 Performance ratings
6.3.2.1 General
The supplier/manufacturer shall establish the performance ratings of the surface drivehead, in the product’s
operating manual as applicable for the surface-drive system based upon objective evidence and evaluation.
These include, as a minimum, the performance ratings listed below.
8 © ISO 2006 – All rights reserved

ISO 15136-2:2006(E)
6.3.2.2 Brake system characteristics
6.3.2.2.1 General
The following parameters shall be supplied to the user/purchaser to aid in the evaluation of the suitability of
the surface-drive system for the specific application.
6.3.2.2.2 Backspin-resisting torque
Mathematical expression, typically expressed in newton metres (foot-pounds), or graphical representation of
the backspin-resisting torque, which is stated as a function of backspin speed and surface-drive system
temperature.
6.3.2.2.3 Heat-dissipation rate
Mathematical expression or graphical representation of the heat dissipation rate, which is typically expressed
in units of watts per degree Celsius (horsepower per degree Fahrenheit).
6.3.2.2.4 Heat capacity
Numeric value of the heat capacity, which is typically expressed in units of joules per degree Celsius (BTU per
degree Fahrenheit).
6.3.2.2.5 Brake-engagement speed
Numeric value of the brake system engagement speed, which is typically expressed in units of revolutions per
minute.
6.3.2.3 Moment of inertia
Numeric value of the moment of inertia, which is typically expressed in terms of square kilograms metre-
square (pounds foot-square).
6.3.2.4 Thrust-bearing rating
Numeric value of the thrust-bearing rating, which is typically expressed in terms of kilonewtons (pounds) for a
specified set of conditions.
6.3.2.5 Input-power rating
Numeric value of the input-power rating, which is typically expressed in units of kilowatt.
6.3.2.6 Maximum operating torque
Numeric value of the maximum operating torque, which is typically expressed in units of newton metre (foot-
pounds).
6.3.2.7 Operating temperature range
Numeric value of the operating temperature range, which is typically expressed in units of degrees Celsius
(degrees Fahrenheit).
6.3.2.8 Operating speed range
Numeric value of the operating speed range, which is typically expressed in units of revolutions per minute.
ISO 15136-2:2006(E)
6.3.3 Environmental related issues
The supplier/manufacturer shall ensure that the supplied product is compatible with the environmental
requirements defined by the user/purchaser in accordance with 5.4. Implementation of these requirements
shall allow the surface-drive system to meet or exceed the requirements of this part of ISO 15136.
6.4 Design verification
Design verification shall be performed by the supplier/manufacturer to verify that the product design meets the
supplier/manufacturer’s technical specifications. Design verification includes documented activities such as
design reviews, design calculations, product testing and comparison with similar designs and historical
records of defined operating conditions. These evaluations shall include but are not limited to the topics listed
in 6.3.2. Empirical methods and/or physical testing used in design verification shall be fully documented and
supported with drawings and material specifications.
6.5 Design validation
Validation of a product design is achieved following the successful completion of the requirements of 6.4 and
6.6.2. The supplier/manufacturer shall document the functional test procedures (see 6.6) and results of the
product testing and shall have on file material certifications and drawings that show all the applicable
dimensions, materials and tolerances of parts contained in the tested product. If a particular size, type and
model fails a validation test, that basic design and materials of construction shall not be submitted for retest
until the manufacturer has determined and documented the corrective measures. Pre-test and post-test
dimensional verification of functionally critical dimensions as defined by the manufacturer shall be within the
established criteria.
6.6 Product functional test
6.6.1 Testing requirements
Each surface-drive system produced in accordance with this part of ISO 15136 shall be functionally tested.
6.6.2 Functional test
Functional tests shall verify that the product meets the supplier/manufacturer’s technical specifications and the
user/purchasers functional specifications. Functional tests shall include detailed evaluations of general drive
head operations, speed versus backspin resisting torque and brake system engagement. Each facet of the
design shall perform within the manufacturer's stated design capabilities during these evaluations. In the case
of a test nonconformance, the manufacturer shall be responsible for determining the cause of the
nonconformance.
The surface-drive systems produced in accordance with this part of ISO 15136 supplier/manufacturer shall be
documented as having passed the acceptance criteria defined by functional test procedures and results of the
supplier/manufacturer product testing and shall have on file material certifications and drawings, which show
all the applicable dimensions, materials and tolerances of parts contained in the tested product. The
evaluations, including acceptance criteria, testing results and disposition of nonconforming products, shall
have documented procedures.
6.6.3 General
Product functional testing shall be performed on each product to ensure that it meets the
supplier/manufacturer’s technical specifications and the user/purchaser's functional specifications. These tests
shall include detailed evaluations of: general drive head operations, speed versus backspin resisting torque
and brake system engagement. Each facet of the design shall perform within the manufacturers stated design
capabilities during these evaluations. In the case of a test nonconformance, the manufacturer shall be
responsible for determining the cause of the nonconformance.
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ISO 15136-2:2006(E)
6.7 Additional testing
Some applications may require additional testing to be agreed upon between the user/purchaser and
supplier/manufacturer.
6.8 Allowable design changes
All design changes shall be documented and reviewed by the supplier/manufacturer against the original
design verification and product validation to determine if the change is a substantive change. A substantive
design change is a change to the design identified by the supplier/manufacturer that affects the performance
of the product. A design that undergoes a substantive change becomes a new design requiring design
verification as specified in 6.4 and design validation as specified in 6.5. Justifications for design changes that
are identified as non-substantive shall be documented. The supplier/manufacturer shall, as a minimum,
consider the following in evaluating each design change:
a) stress levels of the modified or changed components;
b) material changes;
c) functional changes.
6.9 Design scaling
Scaling is not applicable to this product.
7 Supplier requirements
7.1 General
The supplier/manufacturer shall meet the following requirements in designing, manufacturing, evaluating,
testing and delivering surface-drive systems that are covered by this part of ISO 15136. Clause 7 contains the
detailed requirements to verify that each product manufactured meets the requirements of the functional and
technical specifications for that specific product. As a minimum, each of the following topics shall be
addressed.
7.2 Documentation and data control
7.2.1 General
The supplier/manufacturer shall establish and maintain documented procedures to control all documents and
data that relate to the requirements of this part of ISO 15136. These documents and data shall be maintained
to demonstrate conformance to specified requirements. All documents and data shall be legible and shall be
sorted and retained in such a way that they are retrievable in facilities that provide a suitable environment to
prevent damage or deterioration and to prevent loss.
Documents and data may be in any type of media, such as hard copy or electronic media. All documents and
data shall be available and auditable by the user/purchaser. All design verification, product validation,
traceability, manufacturing and quality documents and data shall be maintained by the supplier/manufacturer
for five years after date of last manufacture of that product. This information shall include, as a minimum, the
following:
a) engineering drawings;
b) engineering specifications;
c) material specifications;
ISO 15136-2:2006(E)
d) product assembly and disassembly instructions;
e) design verifications;
f) product validations;
g) operating manuals.
7.2.2 Operating manual requirements
An operating manual shall be available to the user/purchaser for all products supplied in accordance with this
part of ISO 15136. The operating manual shall contain at least the following information:
a) manual reference number;
b) bill of materials;
c) technical specifications as listed in Clause 6;
d) representative illustration(s) identifying major components, significant dimensions and configurations;
e) pre-installation inspection and pre-service procedures;
f) operating instructions (see Annex D) including precautions as applicable for safe and environmentally
acceptable operation;
g) lubricant selection guidelines;
h) maintenance requirements and procedures (including spare parts where applicable);
i) name and address of supplier/manufacturer;
j) supplier/manufacturer product identification (including product number, type);
k) overall dimensions and weight;
l) handling and storage guidelines;
m) installation guidelines (see Annex C);
n) details of the interface connections such as: thread type, size and weight;
o) performance ratings as specified in 6.3.2.
7.2.3 Delivery documentation
Product documentation supplied at delivery of each surface-drive system to the user/purchaser shall include
as a minimum:
a) name and address of supplier/manufacturer;
b) supplier/manufacturer product identification (including product number, type);
c) quality-control documentation grade and information as applicable;
d) overall dimensions and weight;
e) technical/operating manual identification;
f) product technical specifications;
g) product validation information.
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ISO 15136-2:2006(E)
7.3 Product identification
Each product furnished in accordance with this part of ISO 15136 shall be permanently identified according to
the supplier/manufacturer’s specifications. The supplier/manufacturer’s specifications shall define the type,
method of application and location of the identifications. The following information is the minimum that shall be
marked on each product:
a) supplier/manufacturer's identification;
b) date (month and year) of final acceptance by the supplier/manufacturer;
c) supplier/manufacturer's part/model number and serial number;
d) thrust bearing rating;
e) maximum operating torque;
f) maximum input power;
g) operating speed range.
7.4 Quality control documentation
7.4.1 General
This part of ISO 15136 provides for two grades of quality control documentation (objective evidence) to be
selected by the user/purchaser. The product hardware quality and manufacturing operations remain
unchanged with the selection of Q1 or Q2.
7.4.2 Quality control documentation grades
Q2 is the standard level of quality control documentation conforming to the requirements of 7.2. Quality control
documentation grade Q1 provides the user/purchaser the delivery documentation for Q2 plus the following
product specific records: material certifications, inspection reports, additional processes documentation and
the operating manual. The documentation requirements for Q1 shall be maintained by the
supplier
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