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QUESTIONNAIRS ON WELL TESTING AND WELL

COMPLETION & HEALTHY WELLS

Well Testing

1. Why well testing is important?

(To understand info systems enabling better completions

and well operations).

2. Name two common problem of gas well testing?

(Gas epansion ! hydrate problem" #rosion)

$. Gi%e full forms of &'T" T" *+T and ,+-W.

(&epeat 'ormation Test" Tubing on%eyed erforation"

*rill +tem Test" ,asin +ediment and Water)

. Name three production testing e/uipment.

('low head" cho0e manifold" test separator" oil and gas

manifold etc.)

. Why initial acti%ation of well is re/uired during testing?

(To create sufficient differential pressure to create aroundwell bore for inducting formation fluid to flow)

. What is artificial lift?

(+upply of eternal energy to the well" which ceases to

flow)

3. What are the different pressures measured during testing?

(,ottom hole ! static flowing build up

Well head ! static and flowing

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+eparator and other surface installation)

4. *efine 5 and +0in?

6. Name three common methods to pre%ent hydrate

 problem?

(+tage pressure reduction" use of heater" glycol in7ection

etc.)

18. What is the difference between isochronal test and

interference test?

11. 9ultiple :ones testing commonly done from top to

 bottom ! true or false?('alse)

12. What are the different types of schemes and which

type is desirable?

(ositi%e" negati%e and no s0in. Negati%e type is

desirable)

Well comletion!

1. What is the function of well completion?

(To pro%ide conduit from subsurface reser%oir to surface

through which fluid can be produced or in7ected)

2. What is the effect of poor completion design?

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(;igh operating cost" early abandonment" un<reco%ered

reser%es)

$. Name factors that influence well design?(&eser%oir parameters" operating re/uirement" wor0o%er

methods and fre/uency" en%ironmental=safety concern)

. Name three types of wells as per logistics?

(>nshore=offshore=sub<sea wells)

. What are the different types of well completion?(>pen hole" perforated" liner completion)

. What are the parameters used to define tubing?(*iameter" nominal weight" steel grade" thread

connection)

3. Name four down hole well completion e/uipment?

(ac0ers" circulating de%ice" nipples" +++" epansion

 7oints etc.)

4. What is the difference between ++ - +++?

(+urface safety %al%e" sub<surface safety %al%e)

6. What are the different types of pac0ers?

(ermanent pac0er" retrie%able pac0er" polished borereceptacle pac0er)

18. ,ullet perforation is used in medium hard to hard

 perforation. (True or false)

('alse" bullet perforation is for soft to medium hard

 perforation)

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11. What are the benefits of healthy wells?

(9aimi:e ultimate reco%ery" minimi:e total cost o%er 

well life" reduce time - efforts for maintenance" easier 

well completion" and aids in safe operation practices)