二连盆地低阶煤储层物性特征及评价体系研究
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摘要
为了对二连盆地煤储层物性特征及评价体系的建立开展系统性研究,通过大量试验测试分析资料,对该区煤样岩石学特征、煤相、不同级别孔裂隙成因及结构分布、孔渗性、孔隙分形维数进行研究。系统总结了低阶煤储层特征评价参数,首次建立了二连盆地低阶煤储层评价体系,结果表明:二连盆地发育三类煤储层,以大中孔为主,孔隙结构复杂。该评价体系对煤层气勘探开发程度低、储层物性数据较少的二连盆地具有较强的应用性,为该区煤层气有利层位优选和勘探开发提供地质依据。
In order to systematically study the characteristics and evaluation system of coal reservoir in Erlian basin, a study was conducted on the petrological characteristics, coal facies, cause and structure distribution of different level of pore fractures, pore permeability, fractal dimension of pore and fracture in this area based on a large number of experimental tests and analysis data. The characteristics evaluation parameters of low-rank coal reservoir were summarized systematically, and the evaluation system of low-rank coal reservoir in Erlian basin was established for the first time. The results showed that Erlian basin developed three types of coal reservoirs, mainly composed of large-medium-sized pores and complex pore structure. The evaluation system had strong applicability to Erlian basin with low degree of CBM exploration and development and little data of reservoir characteristics, providing geological basis for favorable seam selection and CBM exploration and development in this area.
In order to systematically study the characteristics and evaluation system of coal reservoir in Erlian basin, a study was conducted on the petrological characteristics, coal facies, cause and structure distribution of different level of pore fractures, pore permeability, fractal dimension of pore and fracture in this area based on a large number of experimental tests and analysis data. The characteristics evaluation parameters of low-rank coal reservoir were summarized systematically, and the evaluation system of low-rank coal reservoir in Erlian basin was established for the first time. The results showed that Erlian basin developed three types of coal reservoirs, mainly composed of large-medium-sized pores and complex pore structure. The evaluation system had strong applicability to Erlian basin with low degree of CBM exploration and development and little data of reservoir characteristics, providing geological basis for favorable seam selection and CBM exploration and development in this area.
引文
[1] 孙钦平,王生维,田文广等.二连盆地吉尔嘎朗图凹陷低阶煤层气富集模式[J].天然气工业,2018(4)
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[12] 张新民,韩保山,李建武.褐煤煤层气储集特征及气含量确定方法[J].煤田地质与勘探,2006(3)
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[14] 鲁静,邵龙义,杨敏芳等.低陆相盆地沼泽体系煤相演化、层序地层与古环境[J].煤炭学报,2014(12)
[15] 陈萍,唐修义.低温氮吸附法与煤中微孔隙特征的研究[J].煤炭学报,2001(5)
[16] 戚灵灵,王兆丰,杨宏民等 .基于低温氮吸附法和压汞法的煤样孔隙研究[J].煤炭科学技术,2012(8)
[17] 姚艳斌,刘大锰.煤储层孔隙系统发育特征与煤层气可采性研究[J].煤炭科学技术,2006(3)
[18] 傅雪海,秦勇,薛秀谦等.煤储层孔、裂隙系统分形研究[J].中国矿业大学学报,2001(3)
[19] 张松航,唐书恒,汤达祯等.鄂尔多斯盆地东缘煤储层渗流孔隙分形特征[J].中国矿业大学学报,2009(5)
[20] 王文峰,徐磊,傅雪海.应用分形理论研究煤孔隙结构[J].中国煤炭地质,2002(2)
[2] 王帅,邵龙义,孙钦平等.二连盆地吉尔嘎朗图凹陷煤层气储层特征及勘探潜力[J].煤田地质与勘探,2017(4)
[3] 陈浩,秦勇,邓泽等.二连盆地吉尔嘎朗图凹陷低煤阶生物气产气影响因素[J].天然气工业,2018(6)
[4] 李松,汤达祯,许浩等.贵州省织金、纳雍地区煤储层物性特征研究[J].中国矿业大学学报,2012 (6)
[5] 姚艳斌,刘大锰,刘志华等.煤层气储层综合评价要素与评价体系[A].叶剑平.2008年煤层气学术研讨会论文集[C].北京:地质出版社,2008
[6] 李振,邵龙义,侯海海等.高煤阶煤孔隙结构及分形特征[J].现代地质,2017(3)
[7] 许浩,张尚虎,冷雪等.沁水盆地煤储层孔隙系统模型与物性分析[J].科学通报,2005(S1)
[8] 王生维,段连秀,陈钟惠等.煤层气勘探开发中的煤储层评价[J].天然气工业,2004(5)
[9] 王有智.珲春盆地低阶煤层气富集规律[J].煤田地质与勘探,2015(3)
[10] 李昌峰,魏迎春,王安民等.基于压汞法的低阶煤储层孔隙结构表征-以准噶尔盆地南缘为例[J].中国煤炭地质,2018(2)
[11] 王博洋,秦勇,申建等.我国低阶煤层气地质研究综述[J].煤炭科学技术,2017(1)
[12] 张新民,韩保山,李建武.褐煤煤层气储集特征及气含量确定方法[J].煤田地质与勘探,2006(3)
[13] 王生维,陈钟惠,张明等.煤相分析在煤储层评价中的应用[J].高校地质学报,2003(3)
[14] 鲁静,邵龙义,杨敏芳等.低陆相盆地沼泽体系煤相演化、层序地层与古环境[J].煤炭学报,2014(12)
[15] 陈萍,唐修义.低温氮吸附法与煤中微孔隙特征的研究[J].煤炭学报,2001(5)
[16] 戚灵灵,王兆丰,杨宏民等 .基于低温氮吸附法和压汞法的煤样孔隙研究[J].煤炭科学技术,2012(8)
[17] 姚艳斌,刘大锰.煤储层孔隙系统发育特征与煤层气可采性研究[J].煤炭科学技术,2006(3)
[18] 傅雪海,秦勇,薛秀谦等.煤储层孔、裂隙系统分形研究[J].中国矿业大学学报,2001(3)
[19] 张松航,唐书恒,汤达祯等.鄂尔多斯盆地东缘煤储层渗流孔隙分形特征[J].中国矿业大学学报,2009(5)
[20] 王文峰,徐磊,傅雪海.应用分形理论研究煤孔隙结构[J].中国煤炭地质,2002(2)