摘要
文中通过对××加密井网试验区蒸汽驱过程中大量生产数据的统计分析,初步揭示出蒸汽驱在很大程度上具有同水驱油田相似的驱替规律,边井滞后开井和加强对氯离子含量的监测在蒸汽驱过程中的作用。此外,对传统的低于破裂压力注汽、注汽井射开程度以及“吞吐引效”的概念等政策性原则提出了异议,认为应改“吞吐引效”为“吞吐排液”或“吞吐调向”,在吞吐阶段可以高于破裂压力注汽和提高注汽井的射开程度。这些主要结论对热采全程将不同程度地发挥积极的影响。
Based on an analysis of a large amount of statistical production data,pro- duction characteristics of a steam drived oil reservoir at its stage of exploita- tion are demonstrated,preliminarily.Basic production characteristics in this re- servoir are very similar to those in a water-drived reservoir.It is shown that in a nine Spot pattern the delayed openning of the side wells will have a po- sitive effect on the production,and a monitoring of Cl^(-1) content in the pro- duced fluid is very useful.Actual field data show that steam injection at a pre- ssure higher than the fracturing pressure of the reservoir formation during the period of steam huff and puff will enhance the operation without any undesi- rable effect,and that perforation interval in a well need not be limited to the lower section of the pay because hot water instead of steam is the displa- cing agent in the major part of the reservoir.These conclusions may give ref- erences to similar steam drived oilfields.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1992年第5期65-74,共10页
Petroleum Exploration and Development
