新疆石油地质 ›› 2021, Vol. 42 ›› Issue (3): 381-388.doi: 10.7657/XJPG20210315
• • 上一篇
杨秀春(), 毛建设, 林文姬, 郝帅, 赵龙梅, 王渊, 李丽
收稿日期:
2020-12-01
修回日期:
2021-02-23
出版日期:
2021-06-01
发布日期:
2021-05-27
作者简介:
杨秀春(1970-),女,山东单县人,高级工程师,博士,煤层气地质,(Tel)010-63593797(E-mail) 基金资助:
YANG Xiuchun(), MAO Jianshe, LIN Wenji, HAO Shuai, ZHAO Longmei, WANG Yuan, LI Li
Received:
2020-12-01
Revised:
2021-02-23
Online:
2021-06-01
Published:
2021-05-27
摘要:
主要根据地质认识转变、技术发展、钻井数量、勘探成果与产气量,将保德区块煤层气勘探历程划分为4个阶段。对外合作勘探评价阶段,水平井型排采8+9#煤层,产水量大、排液降压困难;井组试采评价阶段,丛式井组合层排采4+5#煤层和8+9#煤层,排水采气效果显现;勘探开发一体化先导试验阶段,优选富集区井网面积降压试采,获得高产突破;大规模开发与滚动扩边评价阶段,有利区规模建产及复杂区滚动扩边勘探,实现年产气量5×108 m3。以地质认识进展和勘探成果为依据,总结了保德区块低阶煤层气气源成因、成藏模式与“甜点”评价对于勘探开发的启示,提出低阶煤层气“热成因气为主、生物成因气补充”、“水动力控气、单斜缓坡成藏”理论,建立低阶煤层气富集“甜点”评价指标体系。以期对低阶煤层气勘探工作具有启迪意义。
中图分类号:
杨秀春, 毛建设, 林文姬, 郝帅, 赵龙梅, 王渊, 李丽. 保德区块煤层气勘探历程与启示[J]. 新疆石油地质, 2021, 42(3): 381-388.
YANG Xiuchun, MAO Jianshe, LIN Wenji, HAO Shuai, ZHAO Longmei, WANG Yuan, LI Li. Exploration History and Enlightenment of Coalbed Methane in Baode Block[J]. Xinjiang Petroleum Geology, 2021, 42(3): 381-388.
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