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CAPPA Level 1 - PartB > Module 1.8 Drilling > Flashcards

Module 1.8 Drilling Flashcards

1
Q

Objective 1 Play Generation: The student will discuss the procedures leading to an approved Authorization For Expenditure (AFE) for the drilling of a well.

A

Pg 3

1.The company must ‘control’ 100% of the mineral rights.

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2
Q

Objective 2 Design Considerations: The student will discuss the issues that need to be considered by the drilling engineer when planning the drilling operation.

A

Pg 11

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3
Q

Objective 3 Rig Components and their Functions: The student will describe the primary components of a drilling rig and explain their function.

A

Pg 17

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4
Q

Objective 4 Alternative Drilling Techniques: The student will describe alternative drilling techniques, which have become common in recent years and explain the equipment modifications, which have made these techniques feasible.

A

Pg 21

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5
Q

Objective 5 Offshore Drilling: The student will describe equipment used when drilling offshore.

A

Pg 25

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6
Q

Objective 6 The Drilling Operation: The student will describe the drilling operation from spudding the well to reaching TD (total depth) and running production casing

A

Pg 28

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7
Q

Objective 7 Drilling Information: The student will discuss the information obtained during the drilling process that will be used by the well owners once the hole reaches TD (total depth) in their decision to either run production casing or to abandon the hole.

A

Pg 35

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8
Q 
Question 1: What is the official name of the well classification system used in the Alberta?
A- Helene system
B- Lahee system
C- CAPPA system
D- ERCB system
A

B)

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9
Q 
Question 2: Which property of drilling fluid (mud) helps prevent sloughing of soft rocks?
A- density
B- viscosity
C- chemistry
D- lubrication
A

C)

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10
Q 
Question 3: The crown block is part of the
A- drill string
B- substructure
C- derrick
D- hoisting system
A

D)

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11
Q 
Question 4: B.O.P. Refers to
A- bonus of production
B- basic offshore practice
C- blow out preventer
D- bulk oil porosity
A

C)

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12
Q 
Question 5: What is the name of the steel frame that the derrick sits on?
A- mast
B- substructure
C- frame
D- derrick floor
A

B)

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13
Q

Question 6: When drilling underbalanced
A- the pressure in the wellbore is kept higher than the pressure in the prospective formation
B- fluids continuously flow from the wellbore into the prospective formation
C- natural gas is injected into the mud stream
D- the pressure is in the wellbore is kept lower than the pressure in the prospective formation

A

D)

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14
Q

Question 7: How does the presence of a nearby iceberg affect offshore drilling operations?
A- no effect
B- depends on size of iceberg
C- pull out of hole, close blow out preventers and move off location
D- depends on the direction iceberg

A

C)

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15
Q

Question 8: Surface casing is used
A- to stop rocks from sloughing into the hole from near the top of the hole
B- to control fluid flow
C- to stop flow of fluids from one permeable zone into another
D- to stop rocks from sloughing into the hole from near the bottom of the hole

A

A)

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16
Q 
Question 9: The purpose of the final shut in on a drill stem test is for determining
A- fluid analysis
B- permeability
C- net pay
D- reservoir temperature
A

B)

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17
Q 
Question 10: Open hole logs can be used to quantitatively determine
A- permeability
B- the area of the reservoir
C- reservoir pressure
D- porosity
A

D)

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18
Q

Exploratory wells are sometimes referred as

A

Wildcat Wells

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19
Q

To be classified as an exploratory well, a well must be

A

Drilled into unexplored territory

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20
Q

The development well classification is given to a well that

A

Do not meet the expiratory well criteria and often drilled adjacent to existing wells

21
Q

What is the name for development wells drilled in the producing field for some purpose other than the production of oil or gas

A

Service Wells

22
Q

The total debt (TD) for the drilling operation is determined by

A

The deepest perspective zone for which the company and its partners controlled the mineral rights

23
Q

How deep Alberta Energy Regulator (AER) will permit drilling into the next deepest formation, if not controlled by the company

A

15 metres

24
Q

Before proceeding with the drilling operations the company must

A

The company must control 100% of the mineral rights for the zone in question

25
Q

It means whomever produce oil from legally drilled wells will own the oil these wells produce

A

What “law of capture” means

26
Q

Oil companies that would drill wells along the perimeter of each lease to prevent “their” oil from being produced by others and also to drain as much of someone else’s oil as possible is known as

A

Lease line drainage

27
Q

Since October 6, 2011 the baseline well density in the Alberta for oil is

A

One well per pool per standard DSU, which is basically one well per (1/4mile by 1/4 mile) or we could also say 4 wells per section of 1 mile x 1 mile

28
Q

Since October 6, 2011 the baseline well density in the Alberta for gas is

A

2 wells per pool per standard DSU, which is basically 2 wells per section of 1 mile x 1 mile

29
Q

Describe a target area in a farmer field and outside of the farmer field for gas production

A

In a farmers field the standard gas DSU target area is 150 m from south and west boundaries.
In the non-farmers field the standard gas DSU target area is 150 m from all boundaries

30
Q

Describe a target area in a farmer field and outside of the farmer field for gas production

A

The standard gas DSU target area for oil is 100 m from all boundaries

31
Q

Whenever possible a company would like to position the downhole location of the wellbore?

A

In the location that hopefully will be in both the oil and gas target area

32
Q

What is the responsibility of the engineering and production department of an oil company?

A

With efficiently depleting established oil and gas pools

33
Q

A detailed cost estimate for the capital required for drilling operation prepared by the drilling engineer is called?

A

Authorization for expenditure (AFE)

34
Q

Regarding the well location drilling engineer needs to consider?

A

Not only the surface location of the well but also the bottom hole location of the wellbore

35
Q

“Bottom hole location” in the vertical well refers to?

A

Refers to the intersection of the wellbore in the top of the prospective formation

36
Q

“Bottom hole location” in a horizontal well refers to?

A

Refers to the entire horizontal portion of the wellbore that is inside the reservoir

37
Q

The drilling rigs comes in three sizes: singles, doubles and triples why they are given this classification?

A

It depends on how many joints of pipe they can pull at a time; one, two or three

38
Q

When referring to a depth measurement on deviated holes it is necessary to identify the measurement as

A

As either the distance below that Kelly bushing or the true vertical depth

39
Q

The horizontal section in the pay zone is commonly drilled between

A

Between 500 to 2000 m in length

40
Q

What type of well usually translate into higher production rate, quicker depletion of the reservoir, increased reserves and higher cash flow

A

Horizontal wells

41
Q

What are the two classifications for mobile offshore rigs

A

Those that rest on the bottom of the ocean while drilling and those that floats while drilling

42
Q

What is used to connect the BOP stack to the drilling platform in the ocean drilling to allow Oil production

A

A marine riser, basically a large diameter steel pipe with a drill string on the inside and an annulus on the outside

43
Q

When the drilling rig first begins to make hole, the hole is said to

A

To have been spud

44
Q

Who specifies the required depth for the surface hole

A

Alberta energy regulator specifies the required depth for the surface hole in their license approval

45
Q

What purpose serves the surface casing

A

-Protect surface layers from contamination especially water supply
– Provide control from further sloughing or caving
– Serves as an anchor to the earth for the blowout preventer

46
Q

What are the two categories of drilling problems?

A

Pressure related problems and mechanical related problems

47
Q

Generally speaking what is a “kick”

A

It’s a kick related to pressure differential that may be a precursor of a blowout

48
Q

Give me four instances where a kick or pressure differential may occur?

A
  • Insufficient mud pressure in the whole
    – Swabbing pipes being removed from the hole too fast
    – Loss of circulation whenever the high permeability formation is encountered
    – Mod density too high
49
Q

Give me two instances where a mechanical problem may occur?

A
  • A cave-in when drilling through loose formation and the drill pipe below the cave-in the coming stuck
    – Hydrostatic sticking a thick mud cake can build up on the inside wall of the hole

CAPPA Level 1 - PartB (6 decks)

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