Petroleum and natural gas industries - Drilling fluids - Processing systems evaluation (ISO 13501:2005)

ISO 13501:2005 provides a standard procedure for assessing and modifying performance of solids control equipment systems commonly used in the field in petroleum and natural gas drilling fluids processing.
ISO 13501:2005 is not intended for the comparison of similar types of individual pieces of equipment.

Erdöl- und Erdgasindustrie - Bohrflüssigkeiten - Beurteilung von Verarbeitungssystemen

Industries du pétrole et du gaz naturel - Fluides de forage - Évaluation des systèmes de traitement (ISO 13501:2005)

Industrija za predelavo nafte in zemeljskega plina - Vrtalne tekočine - Vrednotenje predelovalnih sistemov (ISO 13501:2005)

General Information

Status
Withdrawn
Publication Date
05-Dec-2006
Withdrawal Date
14-Jun-2011
Current Stage
9960 - Withdrawal effective - Withdrawal
Due Date
15-Jun-2011
Completion Date
15-Jun-2011

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SLOVENSKI STANDARD
SIST EN ISO 13501:2007
01-maj-2007

,QGXVWULMD]DSUHGHODYRQDIWHLQ]HPHOMVNHJDSOLQD9UWDOQHWHNRþLQH9UHGQRWHQMH

SUHGHORYDOQLKVLVWHPRY ,62

Petroleum and natural gas industries - Drilling fluids - Processing systems evaluation

(ISO 13501:2005)

Erdöl- und Erdgasindustrie - Bohrflüssigkeiten - Beurteilung von Verarbeitungssystemen

Industries du pétrole et du gaz naturel - Fluides de forage - Évaluation des systemes de

traitement (ISO 13501:2005)
Ta slovenski standard je istoveten z: EN ISO 13501:2006
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
SIST EN ISO 13501:2007 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
EUROPEAN STANDARD
EN ISO 13501
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2006
ICS 75.180.10
English Version
Petroleum and natural gas industries - Drilling fluids -
Processing systems evaluation (ISO 13501:2005)

Industries du pétrole et du gaz naturel - Fluides de forage - Erdöl- und Erdgasindustrie - Bohrflüssigkeiten - Beurteilung

Évaluation des systèmes de traitement (ISO 13501:2005) von Verarbeitungssystemen
This European Standard was approved by CEN on 13 November 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 13501:2006: E

worldwide for CEN national Members.
---------------------- Page: 2 ----------------------
EN ISO 13501:2006 (E)
Foreword

The text of ISO 13501:2005 has been prepared by Technical Committee ISO/TC 67 "Materials,

equipment and offshore structures for petroleum and natural gas industries” of the International

Organization for Standardization (ISO) and has been taken over as EN ISO 13501:2006 by

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 June 2007, and conflicting national

standards shall be withdrawn at the latest by June 2007.

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 13501:2005 has been approved by CEN as EN ISO 13501:2006 without any

modifications.
---------------------- Page: 3 ----------------------
INTERNATIONAL ISO
STANDARD 13501
First edition
2005-12-01
Petroleum and natural gas industries —
Drilling fluids — Processing systems
evaluation
Industries du pétrole et du gaz naturel — Fluides de forage —
Évaluation des systèmes de traitement
Reference number
ISO 13501:2005(E)
ISO 2005
---------------------- Page: 4 ----------------------
ISO 13501:2005(E)
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ii © ISO 2005 – All rights reserved
---------------------- Page: 5 ----------------------
ISO 13501:2005(E)
Contents Page

Foreword............................................................................................................................................................ iv

Introduction ........................................................................................................................................................ v

1 Scope ..................................................................................................................................................... 1

2 Normative references ........................................................................................................................... 1

3 Terms, definitions, symbols and abbreviated terms......................................................................... 1

4 Requirements ...................................................................................................................................... 12

5 Drilled solids removal — System performance ............................................................................... 12

6 Rigsite evaluation of drilled-solids management equipment......................................................... 17

7 Practical operational guidelines........................................................................................................ 21

8 Conductance of shale-shaker screens.............................................................................................30

9 Shale-shaker screen designation...................................................................................................... 35

10 Non-blanked area of shale-shaker screen panel ............................................................................. 43

11 Shale-shaker screen labelling ........................................................................................................... 45

Annex A (informative) Derivation of capture equation ................................................................................. 49

Bibliography ..................................................................................................................................................... 51

© ISO 2005 – All rights reserved iii
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ISO 13501:2005(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 13501 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures

for petroleum, petrochemical and natural gas industries, Subcommittee SC 3, Drilling and completion fluids,

and well cements.
iv © ISO 2005 – All rights reserved
---------------------- Page: 7 ----------------------
ISO 13501:2005(E)
Introduction

This International Standard covers equipment which is commonly used in petroleum and natural gas drilling

fluids processing. This equipment can be purchased or rented from multiple sources, and is available

worldwide. No single-source or limited-source equipment is included, either by inference or reference.

International Standards are published to facilitate communications between purchasers and manufacturers, or

provide interchangeability between similar equipment and materials purchased from different manufacturers

and/or at different times, and to provide an adequate level of safety when the equipment or materials are

utilized in the manner and for the purposes intended. This International Standard provides minimum

requirements and is not intended to inhibit anyone from purchasing or using equipment made to other

standards. This International Standard is subject to periodic review and can be revised or withdrawn at such

time as deemed appropriate.

The purpose of this International Standard is to provide a method of assessing the performance of solids

control equipment systems in the field. It includes procedures for evaluation of shale shakers, centrifugal

pumps, degassers, hydrocyclones, mud cleaners and centrifuges, as well as an entire system evaluation.

Shale-shaker screenLabelling and separation potential of shale-shaker screens have been addressed as part

of this International Standard.

This International Standard is based on API RP 13C, third edition, December 2004 (for drilling fluid processing

equipment) and shale-shaker screen API RP 13E, third edition, May 1, 1993 (for shale-shaker screens).

ISO publications may be used by anyone desiring to do so. Every effort has been made to assure the

accuracy and reliability of the data contained in them; however, no representation, warrant or guarantee in

connection with this publication is made by ISO. ISO hereby expressly disclaims any liability, or responsibility

for loss or damage resulting from use of this International Standard or for the violation of any federal, state or

municipal regulation with which this publication may conflict.

Standards are published to facilitate the broad availability of proven, sound engineering and operating

practices. Users of this International Standard should be aware that further or differing requirements may be

needed for individual applications. This International Standard is not intended to inhibit a vendor from offering,

or the purchaser from accepting, alternative equipment or engineering solutions for the individual application.

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 International Standard and provide details.”

Any manufacturer marking equipment or materials in conformance with the marking requirements is solely

responsible for complying with all the applicable requirements of that standard. ISO does not represent,

warrant, or guarantee that such products do in fact conform to the applicable International Standard.

© ISO 2005 – All rights reserved v
---------------------- Page: 8 ----------------------
INTERNATIONAL STANDARD ISO 13501:2005(E)
Petroleum and natural gas industries — Drilling fluids —
Processing systems evaluation
1 Scope

This International Standard provides a standard procedure for assessing and modifying performance of solids

control equipment systems commonly used in the field in petroleum and natural gas drilling fluids processing.

This procedure is not intended for the comparison of similar types of individual pieces of equipment.

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 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth

ANSI/AWWA Standard C700, Cold-water meters — Displacement type, bronze main case
API, Manual of Petroleum Measurement Standards
3 Terms, definitions, symbols and abbreviated terms
For the purposes of this document, the following terms and definitions apply.
3.1 Terms and definitions
3.1.1
addition section

compartment(s) in the surface drilling fluid system between the removal section and the suction section which

provides a well-agitated compartment(s) for the addition of commercial products such as chemicals,

necessary solids and liquids
3.1.2
agitator
mechanical stirrer

mechanically driven mixer that stirs the drilling fluid by turning an impeller near the bottom of a mud

compartment to blend additives, suspend solids and maintain a uniform consistency of the drilling fluid

3.1.3
aperture
〈screen cloth〉 opening between the wires in a screen cloth
3.1.4
aperture
〈screen surface〉 opening in a screen surface
© ISO 2005 – All rights reserved 1
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ISO 13501:2005(E)
3.1.5
apex
opening at lower end of a hydrocyclone
3.1.6
API sand

〈physical description〉 particles in a drilling fluid that are too large to pass through a 74 µm sieve (API 200

screen)
NOTE 1 Its amount is expressed as a volume fraction (percent) of drilling fluid.

NOTE 2 Particle size is a descriptive term; the particles can be shale, limestone, wood, gold or any other material.

3.1.7
API screen number
mesh, obsolete
mesh count, obsolete

number in an API system used to designate the D100 separation range of a mesh screen cloth

cf. D100 separation (3.1.23)

NOTE 1 The term mesh was formerly used to refer to the number of openings (and fraction thereof) per linear inch in a

screen, counted in both directions from the centre of a wire. This term is being replaced by the API screen number.

NOTE 2 Mesh count was formerly used to describe the fineness of a square or rectangular mesh screen cloth. For

example, a mesh count such as 30 × 30 or often 30 mesh indicates a square mesh, while a designation such as

70 x 30 mesh indicates rectangular mesh. This term is being replaced by the API screen number.

NOTE See 9.6 for further information.
3.1.8
backing plate
support plate attached to the back of screen cloth(s)
3.1.9
baffle

plate or obstruction built into a compartment to change the direction of fluid flow

3.1.10
barite
baryte

natural barium sulfate (BaSO ) used for increasing the density of drilling fluids

NOTE International Standards require a minimum specific gravity of 4,20 for barite, but do not specify that the

material must be barium sulfate. Commercial ISO 13500 barite can be produced from a single ore or a blend of ores, and

can be a straight-mined product or processed by flotation methods. It can contain accessory minerals other than barium

sulfate (BaSO ). Because of mineral impurities, commercial barite can vary in colour from off-white to grey to red or brown.

Common accessory minerals are silicates such as quartz and chert, carbonate compounds such as siderite and dolomite,

and metallic oxide and sulfide compounds.
3.1.11
blinding
reduction of open area in a screening surface caused by coating or plugging
3.1.12
bonding material
material used to secure screen cloth to a backing plate or support screen
2 © ISO 2005 – All rights reserved
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ISO 13501:2005(E)
3.1.13
centrifugal pump

machine for moving fluid by spinning it using a rotating impeller in a casing with a central inlet and a tangential

outlet

NOTE The path of the fluid is an increasing spiral from the inlet at the centre to the outlet, tangent to the impeller

annulus. In the annular space between the impeller vane tips and the casing wall, the fluid velocity is roughly the same as

that of the impeller vane tips. Useful work is produced by the pump when some of the spinning fluid flows out of the casing

tangential outlet into the pipe system. Power from the motor is used to accelerate the fluid entering the inlet up to the

speed of the fluid in the annulus. Some of the motor power is expended as friction of the fluid in the casing and impeller.

3.1.14
centrifuge

device, rotated by an external force, for the purpose of separating materials of various masses (depending

upon specific gravity and particle sizes) from a slurry to which the rotation is imparted primarily by the rotating

containing walls

NOTE In a weighted drilling fluid, a centrifuge is usually used to eliminate colloidal solids.

3.1.15
check section
suction section

last active section in the surface system which provides a location for rig pump and mud hopper suction, and

ideally is large enough to check and adjust drilling fluid properties before the drilling fluid is pumped downhole

3.1.16
clay mineral
soft variously coloured earth, commonly hydrous silicate of alumina

NOTE Clay minerals are essentially insoluble in water but disperse under hydration, grinding, heating or velocity

effects. Particle sizes of clay mineral can vary from sub-micrometre to larger than 100 µm.

3.1.17
clay particle

colloidal particles of clay mineral having less than 2 µm equivalent spherical diameter

cf. colloidal solid (3.1.20)
3.1.18
coating

〈substance〉 material adhering to a surface to change the properties of the surface

cf. blinding (3.1.11)
3.1.19
coating

〈physical process〉 procedure by which material forms a film that covers the apertures of the screening surface

cf. blinding (3.1.11)
3.1.20
colloidal solid
particle of diameter less than 2 µm
NOTE This term is commonly used as a synonym for clay particle size.
© ISO 2005 – All rights reserved 3
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ISO 13501:2005(E)
3.1.21
conductance
permeability per unit thickness of a static (not in motion) shale-shaker screen
NOTE It is expressed in units of kilodarcies/millimetre.
3.1.22
cuttings

formation pieces dislodged by the drill bit and brought to the surface in the drilling fluid

NOTE Field practice is to call all solids removed by the shaker screen “cuttings,” although some can be sloughed

material.
3.1.23
D100 separation

particle size, expressed in micrometres, determined by plotting the percentage of aluminium oxide sample

separated by the test screen on the plot of cumulative mass fraction (as percent) retained versus U.S. Sieve

Opening (expressed in micrometres) for the sieve analysis of the aluminium oxide test sample

NOTE 100 % of the particles larger than the D100 separation are retained by the test screen.

3.1.24
decanting centrifuge

centrifuge which removes solids from a feed slurry by rotating the liquid in cylindrical bowl at high speed and

discharges the larger particles as a damp underflow

NOTE Colloidal solids are discharged with the liquid overflow, or light slurry. The decanting centrifuge has an internal

auger that moves solids that have settled to the bowl walls out of a pool of liquid and to the underflow.

3.1.25
density
mass divided by volume

NOTE 1 In the SI system, density is expressed in kilograms per cubic metre (kg/m ); In United States Customary units

it is expressed as pounds per gallon (lb/gal) or pounds per cubic foot (lb/ft ).

NOTE 2 Drilling fluid density is commonly referred to as “drilling fluid weight” or “mud weight.”

3.1.26
desander

hydrocyclone, having an inside diameter of 152 mm (6 in) or larger, that removes a high proportion of the

particles of diameter 74 µm and larger from a drilling fluid
3.1.27
desilter
hydrocyclone having an inside diameter less than 152 mm (6 in)
3.1.28
dilution

method of decreasing the drilled-solids content of a slurry by addition of a material(s) other than drilled solids,

usually a clean drilling fluid

1) The darcy is not an SI unit. The SI unit of permeability to fluid flow is defined as the amount of permeability that

3 2

permits 1 m of fluid of a viscosity of 1 pascal per second to flow through a section 1 m thick with a cross section of 1 m in

1 second at a pressure difference of 1 pascal. That unit has no special name. The SI unit of permeability = 1,013 25 × 10

darcy.
4 © ISO 2005 – All rights reserved
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ISO 13501:2005(E)
3.1.29
dilution factor

ratio of the actual volume of clean drilling fluid required to maintain a targeted drilled-solids concentration to

the volume of drilling fluid required to maintain the same drilled-solids fraction over the same specified interval

of footage with no drilled-solids removal system
3.1.30
drilled solids

formation solids which enter the drilling-fluid system, whether produced by the drill bit or from the side of the

borehole
3.1.31
drilled-solids fraction

average volume fraction of drilled solids maintained in the drilling fluid over a specified interval of footage

3.1.32
drilled-solids removal system

all equipment and processes used while drilling a well that remove the solids generated from the hole and

carried by the drilling fluid

NOTE These processes include settling, screening, desanding, desilting, centrifuging and dumping.

3.1.33
drilled-solids removal system performance
measure of the removal of drilled solids by surface solids-control equipment

NOTE The calculation is based on a comparison of the dilution required to maintain the desired drilled-solids content,

with that which would have been required if none of the drilled solids were removed.

3.1.34
drilling fluid

any liquid or slurry pumped down the drill string and up the annulus of a hole during the drilling operation

3.1.35
eductor

〈fluid stream〉 device utilizing a fluid stream discharging under high pressure from a jet through an annular

space to create a low pressure region

NOTE When properly arranged, it can evacuate degassed drilling fluid from a vacuum-type degasser or pull solids

through a hopper.
3.1.36
eductor

〈pressure jet〉 device using a high velocity jet to create a low pressure region (Bernoulli Principle) which draws

liquid or dry material to be blended with the drilling fluid
3.1.37
effluent

discharge of liquid, generally a stream, after some attempt at separation or purification has been made

3.1.38
equalizer

opening for flow between compartments in a surface fluid-holding system which allows all compartments to

maintain the same fluid level
3.1.39
flow capacity
rate at which equipment, such as a shaker, can process drilling fluid and solids

NOTE It is a function of many variables, including shaker configuration, design and motion, drilling fluid rheology,

solids loading, and blinding by near-size particles.
© ISO 2005 – All rights reserved 5
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ISO 13501:2005(E)
3.1.40
flow line

piping or trough which directs drilling fluid from the rotary nipple to the surface drilling-fluid system

3.1.41
flow rate
volume of liquid or slurry which moves through a pipe in one unit of time

NOTE It is expressed as cubic metres per minute, gallons per minute, barrels per minute, etc.

3.1.42
foam

〈phase system〉 two-phase system, similar to an emulsion, in which the dispersed phase is air or gas

3.1.43
foam
〈floating material〉 bubbles floating on the surface of the drilling fluid
NOTE The bubbles are usually air-cut drilling fluid but can be formation gasses.
3.1.44
gumbo

cuttings that agglomerate and form a sticky mass as they are circulated up the wellbore

3.1.45
head

height that a fluid column would reach in an open-ended pipe if the pipe were attached to the point of interest

NOTE The head at the bottom of a 300 m (1 000 ft) well is 300 m (1 000 ft), but the pressure at that point depends

upon the density of the drilling fluid in the well.
3.1.46
high specific gravity solids
solids added to a drilling fluid specifically to increase drilling-fluid density

NOTE Barite (specific gravity = 4,2) and haematite (specific gravity = 5,05) are the most common.

3.1.47
hook strip

hooks on the edge of a screen section of a shale shaker which accept the tension member for screen

mounting
3.1.48
hopper
mud hopper

large funnel- or coned-shaped device into which dry components are poured to uniformly mix the components

with liquids or slurries that are flowing through the lower part of the cone
3.1.49
hydrocyclone
cone
cyclone
liquid-solids separation device utilizing centrifugal force for settling

NOTE Fluid enters tangentially and spins inside the hydrocyclone The heavier solids settle to the walls of the

hydrocyclone and move downward until they are discharged at the hydrocyclone apex. The spinning fluid travels partway

down the hydrocyclone and back up to exit out the top of the hydrocyclone through a vortex finder.

6 © ISO 2005 – All rights reserved
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ISO 13501:2005(E)
3.1.50
impeller

spinning disc in a centrifugal pump with protruding vanes used to accelerate the fluid in the pump casing

3.1.51
manifold

length of pipe with multiple connections for collecting or distributing drilling fluid

3.1.52
Marsh funnel viscosity
funnel viscosity
viscosity measured with the instrument used to monitor drilling fluid

NOTE A Marsh funnel is a tapered container with a fixed orifice at the bottom so that, when filled with 1 500 cm of

fresh water, 946 cm (one quart) will drain in 26 s. It is used for comparison values only and not to diagnose drilling fluid

problems. See ISO 10414-1 (API RP 13B-1) and ISO 10414-2 (API RP 13B-2).
3.1.53
mud

slurry of insoluble and soluble solids in either a water, synthetic or oil continuous-phase fluid

cf. drilling fluid (3.1.34).
3.1.54
mud balance
beam-type balance used in determining drilling fluid density
NOTE See ISO 10414-1 and ISO 10414-2.
3.1.55
mud cleaner

combination of hydrocyclones and screens in series with the underflow of the hydrocyclones

NOTE The hydrocyclone overflow returns to the drilling fluid, while the underflow of the hydrocyclones is processed

through a vibrating screen. The screen is usually of size API 150 or finer. The screen solids discharge is discarded while

the liquid and solids passing through the screen are returned to the drilling fluid.

3.1.56
mud compartment

subdivision of the removal, addition or check/suction sections of a surface system

3.1.57
mud gun
submerged nozzle used to stir drilling fluid with a high-velocity stream
3.1.58
near-size particle

particle whose size is close to the size of the openings in the screen through which its passage is under

evaluation
3.1.59
oil-based drilling fluid

drilling fluid in which the continuous phase is not miscible with water, and water or brine is the dispersed

phase

NOTE Oil-based drilling fluids are usually referred to as non-aqueous drilling fluids, or NAF.

© ISO 2005 – All rights reserved 7
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ISO 13501:2005(E)
3.1.60
overflow
centrate

discharge stream from a centrifugal separation that contains a higher percentage of liquids than does the feed

3.1.61
particle

discrete unit of solid material that consists of a single grain or of any number of grains stuck together

3.1.62
particle size distribution

mass, or net volume, classification of solid particles into each of the various size ranges as a percentage of

the total solids of all sizes in a fluid sample
3.1.63
plastic viscosity

measure of the high-shear-rate viscosity which depends upon the number, shape and size of solids and the

viscosity of the liquid phase

NOTE Plastic viscosity is calculated by subtracting the 300 r/min concentric cylinder viscometer reading from the

600 r/min concentric cylinder viscometer reading (see ISO 10414-1 and ISO 10414-2).

3.1.64
plugging
wedging or jamming of openings in
...

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