Method for detecting oil/water split-phase seepage flow resistance gradient
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 中国石化股份胜利油田分公司地质科学研究院
- Publication Date
- 2007-04-11
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
Technical field
[0001] The invention belongs to the field of oil layer physics research, and relates to an experimental measurement method for the phase separation resistance gradient of oil-water two-phase seepage, that is, it can distinguish between the oil-phase seepage resistance gradient and the water-phase seepage resistance gradient during the oil-water two-phase seepage. Background technique
[0002] In the classic DARCY law of seepage theory, the seepage resistance of the fluid is ignored. As long as there is displacement power, the fluid will flow in the reservoir. In recent years, domestic and foreign studies have found that in the process of oil-water seepage, especially in low-permeability reservoirs, the seepage resistance has a great influence on the movement of oil and water underground. As we all know, objects are subject to resistance during movement. Like the movement of objects, when oil-water two-phase seepage, fluids of different phases (i.e. oil and water) ...