Page 11 - 4305

5. Why did the oil industry start drilling offshore?
6. What are the major differences between drilling offshore and
onshore?
7. What are the main components of the drilling rig?
8. What does it mean to “complete” a well?

ЗМ5. Oil and gas fields development

The concept of the oil and gas fields development. Modes of
oil field development.
Oil extraction/recovery ratio/factor. Oil recovery from
different modes of development reservoirs.
Stages and systems of oil fields development. Methods of
artificial influence on oil reservoirs to increase oil recovery.
Models of gas field development.
Features of gas-condensate and oil and gas-condensate fields
development.
Gas, condensate, oil and hydrocarbon recovery factor of
natural gas fields in the mode of reservoir energy depletion.
Methods of artificial impact on deposits of natural gas in
order to increase hydrocarbon recovery factor.
Features of marine oil and gas fields development. [5-10;
19].

Control questions

1. What causes oil to move upward in the subsurface?
2. What prevents all of the oil in the subsurface from leaking
out at the surface?
3. What are delineation wells?; development wells?
4. Which is more expensive, offshore or onshore development?

10