数值模拟技术在煤层气开发井网设计中的应用——以鄂尔多斯盆地延川南区块为例  

Application of numerical simulation in CBM well pattern development——taking South Yanchuan block of Ordos Basin for example

作　　者：王宁[1] 王运海[1] 程翠[1] 房大志[1] 郭涛[1] 崔彬[1] 

机构地区：[1]中国石化华东分公司石油勘探开发研究院,江苏南京210011

出　　处：《油气藏评价与开发》2014年第6期61-65,共5页Petroleum Reservoir Evaluation and Development

摘　　要：煤层气井网布置的科学性、合理性对于提高煤层气产能和整体开发经济效益十分关键。首先,基于延川南区块煤层地质条件、试采分析,利用COMET3.0煤层气数值模拟软件,针对区块典型煤层气井开展历史拟合,校正该区煤储层地质参数。其次,在历史拟合基础上开展不同井网产能预测,确定了合理布井样式。最后,通过开展不同井间距的敏感性分析及经济评价的结果,最终确定该区合理的布井间距。合理开发井网参数的确定,为延川南区块整体井网方案的部署提供了科学指导。Scientific and reasonable well pattern arrangement is a prerequisite for enhanced coalbed methane recovery and economic development. Firstly, according to coal reservoir geological condition and pre-production analysis of South Yanchuan block, the historical fitting is proposed to modify the CBM reservoir geological parameters by using the numerical simulation software（COMET3.0）. Secondly, by the production prediction of different well patten upon history simulation, the reasonable well pattern type is established. Finally, based on the sensitivety analysis and results of economic evaluation of different inter well distences, reasonable inter well distence in this block is determined. The determination of reasonable developed well patten parameters has great scientific guidence for the whole well pattern project of South Yanchuan block.

关 键 词：煤层气 数值模拟 历史拟合 井网样式 布井间距 延川南区块 

分 类 号：TE132.2[石油与天然气工程—油气勘探]