197542093 1 basic knowledge of iwcf

8/12/2019 197542093 1 Basic Knowledge of IWCF

http://slidepdf.com/reader/full/197542093-1-basic-knowledge-of-iwcf 1/111

Welcome to Well Control Practice Quiz One. Before you start en

There should only be a line with File, Edit, View etc at the top of t

than this then click on "View" from the top line above and select "

This quiz contains 25 questions on Basic Well Control which willWell Control School.

Select a question from the Question Bank and choose from the a

To select a question simply click on the appropriate button. Take

you only get one go at each question.

To answer simply click on the "SELECT" button to the left of your

If you have answered correctly you will be told so and your score

If you have answered incorrectly you will get a brief explanation o

but will not get a second crack at it.

Each time you return to the Question Bank you will be able to see

Good Luck.



ure you are running on full screen.

e screen. If you can see more

Full Screen" from the drop down menu.

elp you prepare for your next

swers given.

your time answering as

choice for the question.

will be adjusted accordingly.

f how to tackle the question

your running score.



SELECT A QUESTION TO ANSWER BY CLICKING ON

Total Number Total Number

Questions Answered Answered Correctly

0 0



HE BUTTON

ercentage

Score

#DIV/0!



Total No Questions Answered = 0



SCORE 0 0



CORRECT - WELL DO



E



QUESTION ONE

A mud weight of 8.9 ppg has a gradient of:

A: .463 psi/ft

B: .833 psi/ft

C: .465 psi/ft

D: .433 psi/ft

E: .013 psi/ft



WRONG - SORRY NOT COpsi/ft = ppg x .052



RECT



QUESTION TWO

A larger pit gain will give higher SIDPP & SICP.

A: True

B: False

C: Sometimes

D: Not enough information to tell

E:



WRONG - SORRY NOT COThe bigger the pit gain the higher SICP is likely to be

SIDPP is not affected by the size of the influx.



RECT



QUESTION THREE

When killing a well using the Drillers Method what should happen

volume during the second circulation?

A: The volume will increase considerably

B: The volume will decrease considerably

C: The volume will not change

D: The volume will increase at first then fall away

E: The volume will decrease at first then build back up



to the mud pit



WRONG - SORRY NOT COThe pit volume should remain constant during the se



RECTcond circulation.



QUESTION FOUR

Most kicks are caused by drill crews failing to:

A: Properly install & test BOP equipment

B: Pump a slug prior to pulling out the hole

C: Keep the hole full of drilling mud

D: Ensure the hole takes the correct fill on trips

E: All the above are correct



WRONG - SORRY NOT COWe tend to keep the hole full these days - whether or

correct amount in for the steel removed is another m



RECT not we put the

atter.



QUESTION FIVE

Circulating pressure of several thousand psi at the pump leaves t

i.e. at the shakers, with little or no pressure. Which part of the pr

the bottom of the hole?

A: Surface line pressure loss

B: Drill string pressure loss

C: Bit nozzle pressure loss

D: Annular pressure loss

E: All of the above



he circulating system

ssure lost acts on



WRONG - SORRY NOT COAPL acts on the bottom of the hole.



RECT



QUESTION SIX

What two variables are considered when calculating hydrostatic

A: Depth & shape of the hole

B: Volume & weight of the mud

C: APL & mud weight

D: Hole depth & viscosity of the drilling mud

E: Column length & density of the fluid



ressure?



WRONG - SORRY NOT COHydrostatic Pressure is affected by the length of the

and the weight of the column of fluid.



RECTolumn of fluid



QUESTION SEVEN

It is a good drilling practice to keep:

A: Trip records

B: Pump output figures

C: Slow criculating rate pressure losses

D: Crews trained up & well control concious

E: All of the above



WRONG - SORRY NOT COThey aer all good drilling practices.



RECT



QUESTION EIGHT

Slow circulating rate pressure losses should be taken and record

A: The drillpipe gauge on the remote choke panel

B: The drillpipe gauge on the driller's console

C: The gauge on the choke manifold

D: The pump gauge

E: The reading obtained from the mud loggers



d every tour using:



WRONG - SORRY NOT CO You kill the well using the gauge on the remote chok

this is what you should use for recording slow circul

presuure losses.



RECTpanel so

ting rate



QUESTION NINE

Hydrostatic pressure is the pressure exerted by a column of fluid

A: True

B: False

C:

D:

E:



at rest.



WRONG - SORRY NOT COTrue.



RECT



QUESTION TEN

One of the most important rules in well control is to:

A: Know how to get SIDPP with a float in the string

B: Shut the well in quickly with the least amount of gain

C: Circulate out a kick with constant drillpipe pressure &

D: Hold approximately 200 psi back pressure on the cho

E: Have slow circulating rate pressure losses to hand at



trokes

e

ll times



WRONG - SORRY NOT COThe smaller the pit gain, the lower pressures are like

quicker you close it in the smaller the pit gain.



RECTy to be. The



QUESTION ELEVEN

Which method of well control has only one circulation and you pu

mud weight right from the start.

A: Drillers

B: Wait & Weight

C: Volumetric

D: Company Man's

E: Bullheading



p kill



WRONG - SORRY NOT COThe correct answer is Wait & Weight Method.



RECT



QUESTION TWELVE

With which method of well control do you circulate the influx out o

before you circulate kill mud round the system?

A: Drillers

B: Wait & Weight

C: Volumetric

D: Company Man's

E: Bullheading



f the well



WRONG - SORRY NOT COThe correct answer is Drillers Method.



RECT



QUESTION THIRTEEN

Which method of well control would you use if you could not pum

migration was suspected?

A: Drillers

B: Wait & Weight

C: Volumetric

D: Company Man's

E: Bullheading



and gas



WRONG - SORRY NOT COThe correct answer is Volumetric Method.



RECT



QUESTION FOURTEEN

The primary method for the prevention of blowouts is:

A: Highly trained drillers

B: Closing the BOP's

C: Correct mud weight in the hole

D: A good company man

E: A good leak off test



WRONG - SORRY NOT COPrimary well control is gained through having a colu

of the correct TVD & weight in the hole.



RECTn of fluid



QUESTION FIFTEEN

The secondary method of controlling a blowout if primary control

has been lost would be to:

A: Pump a barite slug

B: Close the BOP's

C: Pump a kill weight mud

D: Prepare a kill sheet

E: Investigate why primary control was lost



WRONG - SORRY NOT COSecondary well control is the use of the BOP equipm



RECTent.



QUESTION SIXTEEN

As gas migrates up a wellbore during shut in conditions then:

Note: there is no float in the drill string

A: Casing pressure will increase

B: Drillpipe pressure will increase

C: Bubble pressure will increase

D: A & B are correct

E: A & C are correct



WRONG - SORRY NOT COAll pressures in the wellbore will increase with gas

the exception of bubble pressure which will remain



RECTigration with

onstant.



QUESTION SEVENTEEN

If the proper drillpipe pressure schedule is not followed during a k

BHP could either be too high or too low causing another influx or

A: True

B: False

C: Sometimes

D: Only in vertical wells

E: Only in horizontal wells



ill operation then

losses.



RECT



QUESTION EIGHTEEN

The formation pressure at 7500 ft TVD is 3488 psi.

What is the approximate formation gradient?

A: .349 psi/ft

B: .465 psi/ft

C: .521 psi/ft

D: .722 psi/ft

E: 1.00 psi/ft



WRONG - SORRY NOT COpsi/ft = pressure/feet



RECT



QUESTION NINETEEN

A blowout can be described as:

A: A flow of fluid from the formation into the wellbore

B: An abnormally pressured formation

C: An uncontrolled flow of fluid from the wellbore at surfa

D: A combination of hydrostatic pressure and formation p

E: An exhalation of cigarette smoke



e

ressure



WRONG - SORRY NOT COFormation fluid entering the wellbore is a kick.

Formation fluid leaving the wellbore at surface is a b



RECT

owout.



QUESTION TWENTY

Which of the following are possible indicators of a kick?

A: Increase in flow

B: Drilling break

C: Increase in pit volume

D: Gas cut mud

E: All of the above



WRONG - SORRY NOT COThey are all possible indicators of a kick.



RECT



QUESTION TWENTY ONE

The slow circulating rate pressure loss is the pressure required to

round the system at a selected speed.

A: True

B: False

C: Only in vertical wells

D: Only in horizontal wells

E:



circulate mud



RECT



QUESTION TWENTY TWO

When should slow circulating rate pressure losses be taken?

A: As soon as practical after coming on tour

B: When the mud weight changes

C: After drilling a large footage (up to 1000')

D: BHA or bit nozzle changes

E: All of the above



WRONG - SORRY NOT COThey are all correct.



RECT



QUESTION TWENTY THR

The U-Tube is balanced when the well is shut in and pressures h

regardless of the difference between SIDPP & SICP.

A: True

B: False



E: Only with surface stacks



E

ve stabilised



RECT



QUESTION TWENTY FOU

The choke is used to adjust casing pressure but to adjust drillpip

need to change the pump speed.

A: True

B: False






pressure you



WRONG - SORRY NOT COFalse. The main purpose of the choke is to control b



RECT ack pressure.



QUESTION TWENTY FIVE

Bottom hole pressure is not affected when you pump a slug?

A: True

B: False






WRONG - SORRY NOT COIf bottom hole pressure was affected when you pum

would not be allowed to pump slugs.



RECTa slug you



You answered 0 questions

out of 0 questionsgiving you a score of #DIV/0! %

To exit click on "File" in the top left hand corne

and choose "Exit" from the drop down menu th

You will be asked if you wish to save changes -

Thanks for your time.



orrectly

ttempted

of this screen

at appears.

please select "No"

197542093 1 basic knowledge of iwcf

Documents