Process for measuring the formation water pressure within an oil layer in a dipping reservoir
US4282750A · kind A · utility
11Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1980 |
| Grant date | Aug 11, 1981 |
| Priority date | — |
| Expiry date | Apr 4, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pressure substantially equalling the formation water pressure within an oil-productive portion of a subterranean reservoir can be directly measured by displacing a limited portion of water into a continuous water phase extending through a material having an oil entry pressure high enough to effectively prevent oil entry while maintaining a permeability to water, and fluid communication with the reservoir, allowing imbibition to reduce the pressure within the water phase, and subsequently measuring that pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.