Cementing Lab. NL 09 Sep 99 -A

7/24/2019 Cementing Lab. NL 09 Sep 99 -A

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Cement Lab

Introduction

Module CF11609 Sep 99


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Laboratory FunctionsTwo types of Laboratory testing :

1. Perforan!e "#aluationSlurry $esign Stage

Measureent of spe!i%! slurry properties under siulateddown&ole !onditions.

"'e!ution Stage

Monitor preparation of blended aterials

(. C&ei!al C&ara!terisation

)uantitati#e or *ualitati#e analysis of t&e slurry

!oponents prior to i'ing.

Ceent +dditi#es Mi' Fluid


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Performance Evaluation-Slurries

,o#erned by t&e +P- !oittee

on Standardisation of /ilwellCeents 10+ 2 1034

Publi!ation !onsists of5

Test spe!i%!ations for neat!eent slurries

/perational testingpro!edures for all slurries

Pro!edures designed to siulate

down&ole !onditions

Pressure

Teperature


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Performance Evaluation-

Spacers/Washes "#aluation of t&e !leaning ee!t

Copatibility wit& CeentT&i!7ening Tie

Fluid Loss Copressi#e Strengt&

8&eology

"e!ts on ud 8&eology

Excerpt API Spec 10B


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Fluid Compatibility

+P- Spe!. 10 !ontains t&e pro!edures foreasuring t&e !opatibility of uids.

T&e ee!ts of a spa!er or !&ei!al was&

are in#estigated. Copatible uids result in #ery e*ual sets

of Fann ; readings.

Large dieren!e between test resultsindi!ates in!opatibility.


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Chemical Characterization

Four types of saples are e'ained Ceent Powder

C:+< C:S< C(S< C=+F and ,ypsu

$ry 3lended CeentConsisten!y

Set Ceent

Mi' water


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SamplePreparation


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Samplin

Saple a!*uisition Prior to s&ipent bat!& nuber4 Fro rig site

+L>+?S use a!tual %eld saples 2 labelled. Sapling pro!edures as per +P- spe! 103

Se!tion = Ceent 2 blends at %eld lo!ation $ry 2 li*uid !eent additi#es at %eld lo!ation Mi'ing water

$isposal Coply wit& all regulatory re*uireents


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Slurry !esin


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Slurry Properties

Free >ater 2 Slurry Sedientation

>ater separation fro stati! slurry

Migrates upward< a!!uulates in po!7etsor at top of !eent !olun.

8esults in in!oplete @onal isolation

$ensity

3alan!e subAsurfa!e pressures

Ceent %nal strengt&


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Slurry Properties - cont"

Pupability Slurry Consisten!y4

Lengt& of tie slurry reains in a pupable

uid state Bob Tie 1 Dour4

Fluid Loss

Slurry de&ydration during pla!eent p&ase

8&eology

Slurry ow odelling


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Set Cement Properties

3ondingCeent A Casing 2 Ceent A Foration

Sulfate 8esistan!e

8ea!tion to agnesiu and sodiu sulfates5

Loss of !opressi#e strengt& Stress !ra!7ing

Strengt& 8etrogression

Ceent S&rin7age o!!urs at E(0F 110C4.

Pereability

Lig&tweig&t slurries


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#estin Process

CE$E%# - SP&CE' - $(!C)$P&*ILI#+

#,ICE%I%. #I$E#ES#

L&*)')'+ 'EP)'#

C)$P'ESSIE S#'E%.#,

#ES#

',E)L).+SL(''+ !E%SI#+

F'EE WE'#ES# FL(I! L)SS#ES#

L&* &%&L+SIS'E0(ES#1L&'2


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Laboratory

Procedures3 E4uipment


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Lab &nalysis 'e4uest -1L&'2

Subit L+8 to lab re*uesting a slurryforulation

$esignate additi#es a#ailable for slurry design 8e*uest spe!i%! perforan!e paraeters5

$ensity 8&eology PG< ?P 2 ,el Strengt&4 Fluid LossT&i!7ening Tie Free >ater Copressi#e Strengt&

Pro#ide inforation on well paraeters

Bob Type< $ept& M$HTG$4Teperatures 3DSTH3DCTHa'DCT4 Pressure Pro%les.


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Laboratory &nalysis 'eport +t t&e !on!lusion of Ceent Slurry

forulation and subse*uent testing areport is produ!ed outlining t&e following5

Part 1 -nforation re*uested

Suary of results Con!lusions and re!oendations

Part ( Laboratory Tests and 8esults

Part

+ppendi!es as ne!essary


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L+8 Iuber

>ell Conditions

SlurryForulation

SlurryProperties

Typical LAR formatgenerated by LabDB*

software


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Sample Calculation Saple #olue for slurry testing is 600 l

Consider t&e following slurry !oposed of5

Class , Ieat 2 ==J water

Calculate for 566 ml 78 ratio 9 #otal olume / 566 ml

9 :;7ellCeenting4

Casing< Liners< S*uee@e !eenting

#hic@enin #ime


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#hic@enin #ime #est Curve

Tie1in4

#emperature#emperaturede"Fde"F

3!3!100100;0;0

3!3!

Tep.Tep.

100100 200200 300300 400400 50050000

140140

130130

120120

110110

100100

90908080

7070

6060

5050

4040

3030

20201010

00


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&PI Schedules - &PI Spec


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Solution - CemC&!E


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*,C# Prediction0.5 1.5 2.5 3.5

Mud Temp. Profile At 180 min

degF ( 100!

Form"tion

Annulu#

$"#ing Fluid#

3DCT

Ma'DCT

Sl #


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Slurry #ests - CompressiveStrenth

Set !eent strengt& under down&ole!onditions

+pparatus5Curing 3at& +TM pressure 2 (oC4

Curing C&aber 000 psi 2 19oC4

Pro!edure.

Measureent Knit

/t&er et&ods


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S f # t


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Summary of #estProcedures

$est Categor *ui+ment ,ro-eure /eeren-e

1am+ling ierter 'lo 1am+ler A1$M C!02 A,6 1+e- "0(3) 7 "0(4)

1lurr ,re+aration 21+ee ,ro+eller Mi:er A,6 1+e- "0(5) 7 "0(5)

1lurr Conitioning Atmos+heri- Consistometer

1ee releant se-tions or 'ree ater

'lui loss an /heolog in A,6 1+e- "0

7 "0

$hi-;ening $ime

Atmos+heri- an ,ressuriWash>Cement

Com+atibilit

/otational is-ometer 'lui loss

-ell Consistometer =rauli-

+ress A,6 1+e- "0(A++ ,) 7 "0(")

,arti-le Analsis (,ortlan

Cement) laine +ermeameter A1$M C204

Chemi-al Analsis o r lens ?V absor+tion s+e-tro+hotometr A1$M C""4

Chemi-al Analsis o Mi: ater Wet -hemi-al metho A,6 /, 45

Cementing Lab. NL 09 Sep 99 -A

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Transcript of Cementing Lab. NL 09 Sep 99 -A