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- Title
松辽盆地长岭火山岩气藏气井产水模式及影响因素.
- Authors
宋文礼; 董家辛; 孙圆辉; 黄玉欣; 王军宇
- Abstract
Changling volcanic gas reservoir is rich in natural gas resources. However water production in gas wells is a common phenomenon in the development process. Accurate analysis of producing water law, water-yielding pattern and its influencing factors of gas wells have great significance in optimizing development plan and improving development effect. This paper studied the geological characteristics and comprehensively analyzes water producing dynamic characteristics of gas reservoir of Yingcheng Formation, Changling Gasfield. The result shows that the main sources of producing water in gas wells are condensate water and bottom water. Numerical simulation technology was used to study the mechanism of different types of water production output. This paper analyzed the water-yielding law of the gas wells and used numerical simulation to forecast the quantity of gas wells water production. On this basis, the paper summarized 4 kinds of water-yielding patterns, i. e. , fracture in the longitudinal strong water channeling, fracture in the longitudinal weak water channeling, fracture-pore in the longitudinal water coning, and high water saturation pattern. Moreover this paper made clear the influencing factors of gas wells water-yielding. There are four main factors, i. e. , tectonic characteristics, gas wells peaking, inter-well interference, gas wells production. Finally the paper proposed a water-yielding development strategy which is overall consideration, classification management.
- Publication
Natural Gas Geoscience, 2018, Vol 29, Issue 12, p1788
- ISSN
1672-1926
- Publication type
Article
- DOI
10.11764/j.issn.1672-1926.2018.08.007