Fundamentals of Upstream Oil Gas Industry


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Which is the least efficient type of reservoir drive?Choose an option and select Submit. Then scroll down to Continue.

Free gas cap

Dissolved gas

Gravity

Water

Ans – Gravity

A reservoir that contains only gas could be described as a…

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Tight reservoir

Condensate reservoir

Single-phase reservoir

Gas cap reservoir

Ans – Single-phase reservoir

Which of the following would not form an impermeable cap rock?Choose an option and select Submit. Then scroll down to Continue.

Shale

Anhydrite

Sandstone

Salt

Ans – Sandstone

A wildcat well is also known as…Choose an option and select Submit. Then scroll down to Continue.

Dry well

Exploration well

Appraisal well

Development well

Ans – Exploration Well

Which of the following is a net crude oil importing region? Choose an option and select Submit. Then scroll down to Continue.

Europe

Middle East

Latin America

Russia/CIS

ans – Europe

What characteristics do tight reservoirs have? Choose an option and select Submit. Then scroll down to Continue.

High pressure

Low permeability

Low pressure

High permeability

Ans – Low permeability

Which of the following is not a floating platform?Choose an option and select Submit. Then scroll down to Continue.

Spar

Compliant tower

Monocolumn

Tension leg

Ans – Spar

Which of the following is likely to have the highest magnetic reading?Choose an option and select Submit. Then scroll down to Continue.

A.Sandstone

B.Limestone

C.Cap rock

D.Salt

Ans – Cap Rock

What is stranded gas?Choose an option and select Submit. Then scroll down to Continue.

A.Gas which has phase separated from liquids in a reservoir, to form a gas cap

B.Gas which cannot be recovered because of the shape of the reservoir

C.Gas which is dissolved in crude oil

D.Gas which cannot be used, usually because of a lack of transportation to consuming area

Ans – D

Most non-US oil and gas producers follow the reporting standards for reserves defined by____

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A.NYMEX

B.SPE

C.API

D.SEC

Ans – D

Which of the following is a type of stratigraphic trap?

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A.Fault

B.Anticline

C.Salt dome

D.Angular unconformity

Ans – d


How can gas coning be tackled? Choose an option and select Submit. Then scroll down to Continue.

A.Drill a new well

B.Shut in production

C.Reduce the production rate

D.Reinject gas into the reservoir

Ans – D

What is the water cut?

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A.The amount of water produced with oil

B.The point in a reservoir when oil comes into contact with the aquifer

C.The water in a reservoir which forms a film around the rock pores

D.The percentage of a reservoir which is filled with water

Ans – A

Which of the following platforms are used for production but not for drilling? Choose an option and select Submit. Then scroll down to Continue.

Spar platform

Fixed gravity platform

Submersible rig

FPSO

Ans – FPSO

Contingent reserves are defined as reserves which are,

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A.Estimated to be potentially recoverable from accumulations that have not yet been discovered

B.Estimated to be potentially recoverable from known accumulations which are not currently commercially recoverable

C.Estimated to exist in accumulations that have not yet been discovered

D.Estimated to exist in known accumulations

Ans – B

Which of the following is NOT a reason for casing a well?

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A.To prevent the well collapsing

B.To prevent gas coning

C.To prevent oil contaminating groundwater

D.To prevent water encroaching on the well

Ans – B

The maximum percentage of oil and gas in place which can be technically recovered is known as the…

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A.Resource factor

B.Prospect factor

C.Reservoir drive

D.Recovery factor

Ans – D

A reservoir with a permeability of over 100 mD would be described as…

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A.Very good

B.Fair

C.Good

D.Tight

Ans – A

Which of the following is not done when a well is completed?

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A.Install derrick

B.Add packing between drill casing and production tube

C.Install Christmas tree

D.Perforate well casing

Ans – A

What is the reason for doing a drill stem test?

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A.To obtain rock samples

B.To test for wear of the drill bit

C.To measure electrical resistance

D. To obtain fluid samples and measure bottomhole pressure

ans – D

What is bubble point pressure?

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A.The pressure at which gases begin to separate from liquid oil

B.The pressure at which liquid oil condenses

C.The pressure at which liquid oil vaporizes

D.The pressure at which gases begin to dissolve in liquid oll

Ans – A


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