川东石炭系气藏产出地层水特征初探  

CHARACTERISTICS OF YIELDED FORMATION WATER FROM CARBONIFEROUS GAS POOLS IN EASTERN SICHUAN

作　　者：曾波[1] 漆建忠[2] 邹源红[2] 

机构地区：[1]中油西南油气田分公司 [2]中油西南油气田分公司勘探开发研究院

出　　处：《天然气勘探与开发》2004年第1期8-11,共4页Natural Gas Exploration and Development

摘　　要：文章通过对川东石炭系气藏开采过程中产出地层水特征、机理分析 ,将出水气井归纳为沿高渗裂缝水窜、沿网状缝局部水侵和均匀水侵三种类型。三种水侵类型在地层中的水侵速度 ,以及对气藏开采的影响和危害各不相同 ,从而不同程度影响气藏和气井的开发效益。By way of the analysis of characteristics and mechanism of yielded formation water during the exploitation of Carboniferous gas pools in eastern Sichuan, the article divides the water encroachment of water-yield gas wells into three types: (1) water breakthrough along highly permeable fractures, (2) local water encroachment along netted fractures, (3) homogeneous water encroachment. Three types of water encroachment differ from each other by water encroachment velocity and its influence or damage on pool exploitation. As a result, the development benefit of gas pools and gas wells is influenced to different degree. Main measures to predict and prevent the formation water encroachment and yielding of Carboniferous gas pools are raised.

关 键 词：四川 石炭系 地层水 气藏 水侵速度 沿高渗裂缝水窜 沿网状缝局部水侵 均匀水侵 

分 类 号：P641.5[天文地球—地质矿产勘探]