1 - basic knowledge

8/7/2019 1 - BASIC KNOWLEDGE

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Welcome to Well Control Practice Quiz One. Before you start enThere should only be a line with File, Edit, View etc at the top of t

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

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CORRECT - WELL DO


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E


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


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RECT


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QUESTION TWO

A larger pit gain will give higher SIDPP & SICP.

A: True

B: False

C: Sometimes

D: Not enough information to tell

E:


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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.


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RECT


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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


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to the mud pit


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


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RECTcond circulation.


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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


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WRONG - SORRY NOT COWe tend to keep the hole full these days - whether or correct amount in for the steel removed is another m


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RECTnot we put the

atter.


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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


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he circulating system

ssure lost acts on


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RECT


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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


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ressure?


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WRONG - SORRY NOT COHydrostatic Pressure is affected by the length of theand the weight of the column of fluid.


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RECTcolumn of fluid


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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


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WRONG - SORRY NOT COThey aer all good drilling practices.


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RECT


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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


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d every tour using:


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WRONG - SORRY NOT COYou kill the well using the gauge on the remote chokthis is what you should use for recording slow circulpresuure losses.


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RECTpanel soting rate


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QUESTION NINE

Hydrostatic pressure is the pressure exerted by a column of fluid

A: True

B: False

C:

D:

E:


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at rest.


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WRONG - SORRY NOT COTrue.


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RECT


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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


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trokes

e

ll times


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WRONG - SORRY NOT COThe smaller the pit gain, the lower pressures are likelquicker you close it in the smaller the pit gain.


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RECTy to be. The


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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


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mp kill


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


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RECT


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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


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f the well


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WRONG - SORRY NOT COThe correct answer is Drillers Method.


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RECT


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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


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and gas


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WRONG - SORRY NOT COThe correct answer is Volumetric Method.


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RECT


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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


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WRONG - SORRY NOT COPrimary well control is gained through having a coluof the correct TVD & weight in the hole.


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RECTn of fluid


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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


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


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RECTent.


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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


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WRONG - SORRY NOT COAll pressures in the wellbore will increase with gas mthe exception of bubble pressure which will remain c


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RECTigration withonstant.


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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


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ill operation then

losses.


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RECT


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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


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RECT


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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


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e

ressure


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

Formation fluid leaving the wellbore at surface is a bl


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RECT

owout.


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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


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


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RECT


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QUESTION TWENTY ONE

The slow circulating rate pressure loss is the pressure required t

round the system at a selected speed.

A: True

B: False

C: Only in vertical wells

D: Only in horizontal wells

E:


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circulate mud


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RECT


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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


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RECT


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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


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E

ve stabilised


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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





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pressure you


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


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RECTack pressure.


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QUESTION TWENTY FIVE

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

A: True

B: False





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WRONG - SORRY NOT COIf bottom hole pressure was affected when you pumwould not be allowed to pump slugs.


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RECTa slug you


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