摘要
为科学设计矿区煤层气开发井网,采用数值模拟的手段对矿区内井网进行了设计。结果显示:矿区内缓倾斜区域煤层气井的布置方式采用矩形井网较合适,最优走向井间距为500 m,最优倾向井间距为350 m;矿区内急倾斜区域煤层气井的布井方式采用菱形井网较合适,最优走向井间距为300 m,最优倾向井间距为350 m。该研究为确定不同倾斜程度煤储层条件下煤层气井的合理井间距提供了依据。
In order to scientifically design the well pattern of coalbed methane development in the mining area,the well pattern in the mining area was designed by means of numerical simulation.Results showed that the rectangular well pattern was suitable for the layout of CBM wells in gently inclined areas in the mining area.The optimal strike well spacing was 500 m and the optimal dip well spacing was 350 m;the diamond well pattern was suitable for the well layout of coalbed methane wells in the steeply inclined area in the mining area.The optimal strike well spacing was 300 m and the optimal dip well spacing was 350 m.This study provides a basis for determining the reasonable spacing of coalbed methane wells in coal reservoirs with different inclinations.
作者
贾超
秦全灵
李鑫
田继军
JIA Chao;QIN Quanling;LI Xin;TIAN Jijun(School of Resources and Earth Science,China University of Mining and Technology,Xuzhou 221116,China;School of Geology and Mining Engineering,Xinjiang University,Urumqi 830047,China)
出处
《煤炭技术》
CAS
北大核心
2023年第1期17-20,共4页
Coal Technology
基金
国家自然科学基金项目(U193303)。
关键词
井间距
煤层气
井网
含气量
渗透率
well spacing
CBM
well pattern
gas content
permeability
