Production method for steeply-dipping formations
Patent
·
OSTI ID:6491390
A production method for steeply dipping water-drive reservoirs consists of drilling a well into the reservoir that is as deep as that of the oil-water interface of the reservoir and drilling at least one up-dip well at a shallower depth. A miscible fluid having a density not exceeding that of the oil is injected through the up-dip well until the lower boundary of the injected fluid is moved downward to the depth of the oil-water interface. The injection is then stopped and the injected fluid produced from the up-dip well, by permitting the water level to rise in the reservoir. The process can also be used to produce another oil-bearing formation with the miscible fluid being discharged from the reservoir under water pressure. Thus, the miscible fluid can be led from the first reservoir into a second reservoir to drive the fluid from it. (2 claims)
- Assignee:
- TUL; EDB-81-078479
- Patent Number(s):
- US 3312278
- OSTI ID:
- 6491390
- Country of Publication:
- United States
- Language:
- English
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