裂缝水窜型出水气井的治水方法研究  

A STUDY OF WATERCONTROLLING METHOD FOR WATERED OUT GAS WELL OF FRACTURE WATER CHANNELING TYPE

作　　者：陈玉飞[1] 贺伟[2] 罗涛[2] 

机构地区：[1]四川石油管理局川东开发公司 [2]四川石油管理局地质勘探开发研究院

出　　处：《天然气工业》1999年第4期64-69,共6页Natural Gas Industry

摘　　要：当前，四川气田的出水气藏和气井正呈不断增多的趋势，对现场生产和气藏开发开采效果的影响也越来越大，故采取符合气藏地质特点的防水治水措施是十分重要的。对水侵的各种防治方法进行了总结和综述，用动态分析的数值模拟等手段，对实际气藏（气井）在不同措施下的防水治水效果进行了计算和对比分析，针对裂缝水窜型出水气井，提出采用水井排水泄压的“排水采气”措施，可以有效地控制边水恶性水侵，恢复和提高气井产量，提高气藏采收率。同时指出：气藏水体也是气藏整体能量的组成部分，排水量过大，可能导致地层能量消耗过度，从而影响气藏的稳产年限和最终采收率。The watered out gas reservoirs and gas wells in Sichuan gas fields are showing a tendency to increase uninterruptedly,which has a greater and greater influence upon the field production and the development and recovery effect of gas reservoir.For this reason,to adopt the waterpreventing and watercontrolling measures suited to the geological characteristics of gas reservoirs is very important.In this paper,the characteristics of various waterinvasionpreventing methods are summarized and overviewed;the waterpreventing and watercontrolling effect by adopting different measures for the actual gas reservoirs(wells) is calculated and comparatively analyzed by using such methods as performance analysis and numerical simulation,etc.and in view of the watered out gas wells of fracture water channeling type,the measure of gas production by water draining used for withdrawing water and releasing pressure for water well is proposed,which can effectively control the vicious edge water invasion,resume and raise gas well's production and improve recovery factor of gas reservoir.It is pointed out also that the water body in gas reservoir is a component part of gas reservoir's whole energy.Too much drainage capacity may lead to excessively consuming formation energy,which will have an influence on the stable production period and ultimate recovery factor of gas reservoir,so the drainage capacity should be rationally determined.

关 键 词：气井出水 排水采气 采气井 治水方法 

分 类 号：TE375[石油与天然气工程—油气田开发工程]