低渗岩性气藏储气库封闭性评价技术研究——以长庆靖边气田陕43井区为例  

Evaluation Techniques of closure of gas storage in low-permeability lithologic gas reservoirs

作　　者：陈凤喜[1,3] 薛云龙[1,3] 于秀英 伍勇[1,3] 游良容[1,3] 

机构地区：[1]中国石油长庆油田分公司勘探开发研究院 [2]中国石油长庆油田苏里格南作业分公司 [3]低渗透油气田勘探开发国家工程实验室

出　　处：《低渗透油气田》2014年第2期112-116,共5页

摘　　要：储气库建设要求备选气藏是一个完整的封闭体。针对岩性气藏无明显封闭条件的情况。根据钻井、测井、测试及化验分析等资料，通过气藏精细描述、突破压力试验、干扰试井等技术研究。论证了长庆靖边气田陕43井区岩性气藏储气库圈闭性：盖层、底板发育，分布稳定，具有较好的封盖能力；隔层发育但厚度薄，对气藏不起完全的封隔作用；库区西北部、东部、南部被侵蚀沟槽充填物分隔，北部、西南部岩性致密，构成了气藏的有效遮挡。具备建设储气库的封闭条件。Construction of gas storage requires the alternative gas reservoir is a complete enclosure. In view of the situation of no ap- parent closed conditions of lithologic gas reservoirs, the trap property of gas storage in lithologic gas reservoirs of Shaan43 wellblock of Cbangqing Jingbian gasfield is demonstrated through technical researches of fine description of gas reservoirs, pressure break- through test, and interference well test, according to the drilling, logging, testing, laboratory analysis and other information. The caprock and floor of the trap are developed, with stable distribution and good sealing ability. The barrier is developed but thin, with no completely sealing and separating on the gas reservoir. The northwestern region, eastern, and southern part of the storage district are separated by erosion trench fillings. The north and southwest rock is tight, constituting effective barrier to the gas reservoir. Therefore it has the closed conditions for construction of gas storage.

关 键 词：靖边气田 岩性气藏 储气库:圈闭评价 

分 类 号：TE37[石油与天然气工程—油气田开发工程]