河南牟页1井山西组——太原组页岩含气性控制因素
|
摘要
目前页岩含气性控制因素是页岩气勘探研究的一个关键问题。基于中牟区块及周边研究资料,在太原组—山西组海陆过渡相的泥炭沼泽亚相和潟湖亚相沉积岩是页岩气发育最有利相带,对岩芯进行含气量测试研究。结果表明:1)山西组泥页岩平均含气量为1.82m~3/t,累计厚度20～25m;太原组泥页岩平均含气量为2.64m~3/t,累计厚度26～30m。2)太原组泥岩的有机碳含量要高于山西组;随着埋藏深度的加大,有机碳含量具有逐渐增加的趋势,且非均质性较强。3)地层垂向岩性变化、厚度、有机质含量、有机质生烃能力影响页岩含气性。4)现场解吸气量、有机质丰度、厚度、埋深、裂缝、孔隙结构是牟页1井山西组—太原组页岩含气性控制因素。
At present,the controlling factors of shale gas content are a key issue in shale gas exploration and study.According to the data of Zhongmou block and nearby regions sedimentary rock of peat swamp sub-facies and laggo0nsub-facies of the sea-continent transitional facies in Taiyuan Formation-Shanxi Formation is the most favorable facies belt of shale gas.The gas content of the rock core was tested and studied.The result shows that the average gas content of the argillutite(cumulative thickness(20 to 25 m),in Shanxi Formation was 1.82 m~3 and the average gas content of argillutite(thickness 26 to 30 m)in Taiyuan Formation was 2.64 m~3/t;the organic carbon content of argillutite in Taiyuan Formation was higher than that in Shanxi Formation and the organic carbon content gradually increases with stronger heterogeneity to depth;vertical lithologic variation,thickness,organic matter content and ability of the organic matter to generate hydrocarbon affect the shale gas content and the on-site desorption gas amount,organic matter abundance,thickness,burial depth,fracture,pore structure are the main control factors.
At present,the controlling factors of shale gas content are a key issue in shale gas exploration and study.According to the data of Zhongmou block and nearby regions sedimentary rock of peat swamp sub-facies and laggo0nsub-facies of the sea-continent transitional facies in Taiyuan Formation-Shanxi Formation is the most favorable facies belt of shale gas.The gas content of the rock core was tested and studied.The result shows that the average gas content of the argillutite(cumulative thickness(20 to 25 m),in Shanxi Formation was 1.82 m~3 and the average gas content of argillutite(thickness 26 to 30 m)in Taiyuan Formation was 2.64 m~3/t;the organic carbon content of argillutite in Taiyuan Formation was higher than that in Shanxi Formation and the organic carbon content gradually increases with stronger heterogeneity to depth;vertical lithologic variation,thickness,organic matter content and ability of the organic matter to generate hydrocarbon affect the shale gas content and the on-site desorption gas amount,organic matter abundance,thickness,burial depth,fracture,pore structure are the main control factors.
引文
[1]张金川,金之钧,袁明生.页岩气成藏机理和分布[J].天然气工业,2004,24(7):15-18.
[2]王红军.全球非常规油气资源评价[J].石油勘探与开发,2016,43(6):850-862.
[3]邱庆伦,张古彬,冯辉,等.河南中牟区块页岩气特征及勘探前景分析[J].地质找矿论丛,2018,33(1):70-75.
[4]葛明娜,张金川,李晓光,等.辽河东部凸起上古生界页岩含气性分析[J].断块油气田,2012,19(6):722-726.
[5]徐汉林,赵宗举,杨以宁,等.南华北盆地构造格局及构造样式[J].地球学报,2003,24(1):27-33.
[6]瓮纪昌,王鹍,代磊,等.河南中牟和温县区块海陆交互相页岩气储层评价及勘查进展研究报告[R].郑州:河南省地质调查院,2016:93-99.
[7]刁玉杰,魏久传,曹红.南华北盆地石炭-二叠系沉积环境与聚煤规律研究[J].海洋科学集刊,2010(1):133-138.
[8]顾志翔,彭勇民,何幼斌,等.湘中坳陷二叠系海陆过渡相页岩气地质条件[J].中国地质,2015,42(1):288-299.
[9]瓮纪昌,王鹍,汪超.河南中牟和温县区块页岩气形成富集条件及勘查进展研究成果报告[R].郑州:河南豫矿地质勘查投资有限公司,2017:58-79.
[10]唐玄,杜晓瑞,张明强.河南中牟页岩气勘查牟页1井采样测试及地质评价报告[R].郑州:深圳市百勤石油技术有限公司,2015:68-79.
[11]余川,程礼军,曾春林,等.渝东北地区下古生界页岩含气性主控因素分析[J].断块油气田,2014,21(3):296-300.
(1)杜晓瑞,党伟,张明强.牟页1井地层含气量现场解析测试报告[R].郑州:深圳市百勤石油技术有限公司.
(2)陈朝刚,杨涛,邱以钢,等.西姜寨目标区高精度三维地震资料处理解释报告[R].郑州:斯伦贝谢中渝页岩气技术服务有限公司.
[2]王红军.全球非常规油气资源评价[J].石油勘探与开发,2016,43(6):850-862.
[3]邱庆伦,张古彬,冯辉,等.河南中牟区块页岩气特征及勘探前景分析[J].地质找矿论丛,2018,33(1):70-75.
[4]葛明娜,张金川,李晓光,等.辽河东部凸起上古生界页岩含气性分析[J].断块油气田,2012,19(6):722-726.
[5]徐汉林,赵宗举,杨以宁,等.南华北盆地构造格局及构造样式[J].地球学报,2003,24(1):27-33.
[6]瓮纪昌,王鹍,代磊,等.河南中牟和温县区块海陆交互相页岩气储层评价及勘查进展研究报告[R].郑州:河南省地质调查院,2016:93-99.
[7]刁玉杰,魏久传,曹红.南华北盆地石炭-二叠系沉积环境与聚煤规律研究[J].海洋科学集刊,2010(1):133-138.
[8]顾志翔,彭勇民,何幼斌,等.湘中坳陷二叠系海陆过渡相页岩气地质条件[J].中国地质,2015,42(1):288-299.
[9]瓮纪昌,王鹍,汪超.河南中牟和温县区块页岩气形成富集条件及勘查进展研究成果报告[R].郑州:河南豫矿地质勘查投资有限公司,2017:58-79.
[10]唐玄,杜晓瑞,张明强.河南中牟页岩气勘查牟页1井采样测试及地质评价报告[R].郑州:深圳市百勤石油技术有限公司,2015:68-79.
[11]余川,程礼军,曾春林,等.渝东北地区下古生界页岩含气性主控因素分析[J].断块油气田,2014,21(3):296-300.
(1)杜晓瑞,党伟,张明强.牟页1井地层含气量现场解析测试报告[R].郑州:深圳市百勤石油技术有限公司.
(2)陈朝刚,杨涛,邱以钢,等.西姜寨目标区高精度三维地震资料处理解释报告[R].郑州:斯伦贝谢中渝页岩气技术服务有限公司.