Geol - Ch. 7-8

Front 1

Can an oil company force entry to survey?

Back 1

Yes

Front 2

Can an oil company force entry to do ageophysical survey?

Back 2

No

Front 3

Can an oil company force entry to drill awell?

Back 3

Yes

Front 4

What government agency is involved when acompany must force entry?

Back 4

Surface Rights Board - Alberta Government

Front 5

What can a landowner protest?

Back 5

Location of the rig and/or compensation

Front 6

What government agency gets involved withlandowner safety issues related to drilling a well?

Back 6

EUB

Front 7

Who is the operator?

Back 7

Oil company

Front 8

MSL: __________________. An MSL is adocument allowing access to the ______________ for the purpose of______________

Back 8

Mineral Surface Lease, surface drilling and production

Front 9

Does an MSL include both surface and mineralrights?

Back 9

No - surface only

Front 10

When does access to the surface need tobecome permanent?

Back 10

When the well is drilled (access roads, facilities and pipeline monitoring) and not a D&A

Front 11

ROW: _________________. What does an ROW restrict?

Back 11

Right of Way, building infrastructure onto of the surface

Front 12

Is compensation for surface entry usuallya large sum of money?

Back 12

No - fair amount is given

Front 13

Does surface compensation include a royalty?

Back 13

No

Front 14

What document must an oil company have isthey wish to surrender their surface lease?

Back 14

Reclamation Certificate

Front 15

Who grants the RC?

Back 15

Alberta Environment

Front 16

Name a drilling rig.

Back 16

Rotary Land Rig

Front 17

What is a drilling rig’s function?

Back 17

Drill the initial hole into the group for production purposes

Front 18

When does the drilling rig leave the site?

Back 18

When the hole is cased and ready for production

Front 19

Describe the power system.

Back 19

Power to a drilling rig (normally delivered by diesel engines called prime movers)

Front 20

Describe the hoisting system.

Back 20

Hoisting system to handle considersable weight of the drill pipe or drill string by operating as a vertical crane (consists of the Derrick, pulleys and drilling line)

Front 21

Describe the rotating system.

Back 21

parts of the rig that turn (swivel, Kelly bushing, master bushing, drill string, drill collars and drill bit)

Front 22

What is a joint of pipe and how long is it?

Back 22

Drill pipe, 9.5 to 14 m

Front 23

What is drill string?

Back 23

term used to describe the drill pipe, collars, drill bit all together

Front 24

KB: ________________. Where is KB located?

Back 24

Kelly Bushing, above the master bushing (on the rig floor)

Front 25

What is a wellbore?

Back 25

The hole in the ground made by drilling

Front 26

What is the annulus?

Back 26

The space (360º) between the drill stringand the wellbore.

Front 27

Name 3 different materials that can beused in the circulating system.

Back 27

1. Mud

2. Air

3. Water

Front 28

The circulating system is responsible for:

Back 28

Maintaining back pressure against downholeformations, bringing chip samples/drill cuttings to the surface, and coolingand lubricating the drill bit.

Front 29

Compare and contrast drill cuttings andchip samples.

Back 29

Chip samples & drill cuttings are the same

Front 30

What is underbalanced drilling? How does it affect the formations?

Back 30

- circulating system is closed and not open to the atmosphere

- Allows for greater rates of penetration and lowers the risk of damaging the formations with drilling mud or creating a filter cake buildup

Front 31

What is overbalanced drilling? How does it affect the formations?

Back 31

- drilling with mud that is heavier than required (safe from a blowout standpoint)

- damages the downhole formations through invasion

Front 32

BOP: _____________. Where is the BOP located?

Back 32

- Blowout Prevention

- sits below the rig floor, under the master bushing and is attached to the surface casing

Front 33

Explain drilling ahead and making hole.

Back 33

terms allocated to actually drilling the wellbore (gouging of scraping the rock and proceeding deeper into the earth)

Front 34

Explain tripping and tripping out.

Back 34

Tripping is the reversal of drilling ahead (drill pipe is removed from the hole)

Front 35

Explain running in.

Back 35

Occurs after a trip - drill string is attached to the bit and kelly and lowered into the hole

Front 36

The rig used for drilling the deepestholes is a ______

Back 36

Triple rig

Front 37

A double rig can handle ______ joints ofdrill pipe.

Back 37

2 at a time

Front 38

What does “spud” mean?

Back 38

Start drilling

Front 39

What does spudded the well mean?

Back 39

Started drilling

Front 40

What is rigging up?

Back 40

process of getting a drilling rig ready to drill

Front 41

Describe how surface casing is fixed inthe ground and why it is used.

Back 41

- Surface casing is steel pipe that lines the hole from the surface to a depth set by the regulatory body governing the drilling

- prevents the erosion of the surface hole

Front 42

TD ____________. Who sets the TD?

Back 42

Total Depth, the oil company in consultation with the geologist

Front 43

TVD _____________

Back 43

Total vertical depth

Front 44

What is a fish? How is a fish retrieved?

Back 44

- anything lost or dropped down the well

- use of junk baskets, magnets, overshots, grapples, explosives and spears

Front 45

Explain lost circulation and how it ishandled?

Back 45

- When the drill bit encounters a formation that has very high permeability the drilling mud exiting the nozzle ports on the bit bleeds into the formation instead of returning to the surface up the annulus

- pumping down anything to plug up the formation can be done

Front 46

What is a kick?

Back 46

when a formation fluid overpowers the drilling mud an flows into the annulus

Front 47

What is a blowout?

Back 47

when a formation fluid comes to the surface uncontrolled

Front 48

List what is evaluated during the drillingprocess?

Back 48

Chip samples, gas detection unit, core (ifrequested).

Front 49

As soon as drilling is completed what isdone?

Back 49

Well logs - determine whether the well will produce or not

Front 50

Who evaluates the logs?

Back 50

engineer and geologist in partnership with the logging company

Front 51

If more reservoir information is requiredwhat is run?

Back 51

Drill Stem Test (DST)

Front 52

Once an oil company has all theinformation from the drilling and immediately after in house and has evaluatedwhat choice must be made?

Back 52

Whether to abandon or complete the well

Front 53

How is a well abandoned?

Back 53

placing cement plugs in the wellbore across any porous or permeable zones

Front 54

How is a well completed?

Back 54

cemented casing/production casing is added to the wellbore

Front 55

Why use tubing?

Back 55

To have a smaller diameter for the fluidcolumn to make the fluid column easier to lift.

Front 56

What is rig release? When is the rig released?

Back 56

- When the rig is released to go to anotherlocation.

- If the well is D&A the rig is releasedas soon as the decision to abandon is made. If the well is completed the rig is released as soon as the productioncasing has been set in the hole.

Front 57

Explain a frac and an acid squeeze and whythey are used.

Back 57

Frac - high pressure fluid is pumped down into the formation to increase the permeability of the formation

Acid squeeze - use of acid to increase permeability