沁水盆地南部煤层气富集高产主控地质因素

doi:10.7623/syxb201406004

石油学报 ›› 2014, Vol. 35 ›› Issue (6): 1070-1079.DOI: 10.7623/syxb201406004

沁水盆地南部煤层气富集高产主控地质因素

孙粉锦¹, 王勃^1,2, 李梦溪³, 梁宏斌³

1. 中国石油勘探开发研究院廊坊分院河北廊坊 065007;
2. 中国地质大学能源学院北京 100083;
3. 中国石油华北油田公司河北任丘 062552

收稿日期:2014-05-14 修回日期:2014-08-20 出版日期:2014-11-25 发布日期:2014-10-13
通讯作者: 王勃,男,1979年10月生,2003年获中国矿业大学学士学位,2013年获中国矿业大学博士学位,现为中国石油勘探开发研究院廊坊分院工程师。Email:wangbo69@petrochina.com.cn
作者简介:孙粉锦,男,1967年9月生,1989年获浙江大学地质学专业学士学位,现任中国石油勘探开发研究院廊坊分院煤层气勘探开发研究所所长、高级工程师,从事煤层气勘探开发综合研究及管理工作。Email:sunfj69@petrochina.com.cn
基金资助:
国家重大科技专项"大型油气田及煤层气开发"(2011ZX05033、2011ZX05033-001、2011ZX05043-006)资助。

Major geological factors controlling the enrichment and high yield of coalbed methane in the southern Qinshui Basin

Sun Fenjin¹, Wang Bo^1,2, Li Mengxi³, Liang Hongbin³

1. Langfang Branch, PetroChina Research Institute of Petroleum Exploration and Development, Hebei Langfang 065007, China;
2. School of Energy Resources, China University of Geosciences, Beijing 100083, China;
3. PetroChina Huabei Oilfield Company, Hebei Renqiu 062552, China

Received:2014-05-14 Revised:2014-08-20 Online:2014-11-25 Published:2014-10-13

摘要/Abstract

摘要：

沁水盆地南部以高阶煤储层为主,煤层气勘探与开发资料丰富。利用这些数据资料,采用层次分析、构造解析及盆地分析等方法,分层次探讨了高阶煤层气富集、高产的主控因素及其控气作用机理。研究表明,构造调整、水动力分区及顶、底板岩性分布等控制着煤层气的富集。顶、底板泥岩发育区、水动力滞流区、弱径流区以及构造调整弱或未调整区控制煤层气富集,预测了沁源—安泽、沁南—夏店、马必—郑庄以及柿庄—潘庄4个煤层气富集区。渗透率、构造部位控制煤层气高产,富集区的局部构造高部位埋深较浅的原生高渗带、深部裂隙发育带煤层气易高产,预测了安泽、夏店南部、马必南部、郑庄南部、樊庄中北部和樊庄南部—潘庄6个煤层气高产区。

关键词: 煤层气, 富集高产, 构造, 顶、底板, 水动力

Abstract:

High-rank coal reservoirs are dominant in the southern Qinshui Basin and there are informative data for CBM exploration and development. Based on the existing data, we hierarchically discussed the major controlling factors and their gas controlling mechanisms on the enrichment and high yield of CBM in the southern Qinshui Basin using analytical hierarchy process, structural analysis, and basin analysis. The results show that the adjustment of geological structure, the zoning of hydrodynamic force, and the lithology distribution of coal seam top and floor primarily control CBM enrichment in the study area. CBM is enriched mainly in the top and floor mudstone development zones, hydrodynamically stagnant and weak-runoff zones, and structurally weakly-adjusted or unadjusted zones. Four CBM enrichment zones are predicted in Qinyuan-Anze, Qinnan-Xiadian, Mabi-Zhengzhuang, and Shizhuang-Panzhuang regions, respectively. The yield of CBM is mainly controlled by permeability and tectonic position. In CBM enrichment zones, high yield can easily be achieved from local structures such as the original high-permeability zone in the shallow high part and the fracture development zone in the deep strata. Six high-yield regions of CBM are predicted in Anze, south Xiadian, south Mabi, south Zhengzhuang, mid-north Fanzhuang, and south Fanzhuang-Panzhuang regions, respectively.

Key words: coalbed methane, enrichment and high yield, tectonics, coal seam top and floor, hydrodynamic force

中图分类号:

TE122.2

孙粉锦, 王勃, 李梦溪, 梁宏斌. 沁水盆地南部煤层气富集高产主控地质因素[J]. 石油学报, 2014, 35(6): 1070-1079.

Sun Fenjin, Wang Bo, Li Mengxi, Liang Hongbin. Major geological factors controlling the enrichment and high yield of coalbed methane in the southern Qinshui Basin[J]. ACTA PETROLEI SINICA, 2014, 35(6): 1070-1079.

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沁水盆地南部煤层气富集高产主控地质因素

Major geological factors controlling the enrichment and high yield of coalbed methane in the southern Qinshui Basin

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