沁水盆地柿庄北区块深部煤储层特征测井评价研究
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摘要
基于测井方法解释评价了深部煤储层的顶底板物性、煤体结构、孔隙度和渗透性,研究了沁水盆地杮庄北区块煤储层岩石力学特性、含气性特征和地应力的展布规律。研究结果表明:该区块3煤的顶板物性和封盖性要比15煤的好; 3煤的渗透性比太原组15煤的渗透性要好; 3煤在研究区西部埋藏深、厚度小,而15煤埋藏相对较深、厚度较大。就地应力而言,3煤在柿庄北区块西南部地应力数值最高,各向异性强,最大、最小地应力差别大; 15煤在柿庄北区块西南部地应力数值最高,在北西方向各向异性强,地应力差别大,裂隙发育。最后,对深部煤层气储层特征和深部地应力的变化规律进行了分析,并对测井解释的发展和完善提出了建议。
Based on the logging method,an explanation and evaluation were conducted on the roof and floor physical properties,coal structure; porosity and permeability of the deep coal reservoir.A study was conducted on the rock mechanics features,gas content features and geostress distribution law of the deep coal reservoir.The evaluation results showed that in North Shizhuang of Qinshui Basin,the roof physical properties and sealing of No.3 seam were better than No.15 seam.The permeability of No.3 seam was better than the permeability of No.15 seam in Taiyuan Formation.In the west part of the study area,the depth of No.3 seam was deep and the thickness of No.3 seam was thin.In west part of the study area,the depth of No.15 seam was deep and the thickness of No.15 seam was high.The geostress logging explanation showed that in the south-west part of the study area,the geostress value of No.3 seam was max,the anisotropy of No.3 seam was strong and there was a big difference between the max geostress and the min geostress.In the south-west part of the study area,the geostress value of No.15 seam was max,the anisotropy in the north-west part of the study area was strong,the difference of the geostresses was high and the cracks were developed.Finally,an analysis was conducted on the reservoir features of the deep coalbed methane and the variation law of the deep geostress and the proposals were provided on the development and improvement of the logging explanation.
Based on the logging method,an explanation and evaluation were conducted on the roof and floor physical properties,coal structure; porosity and permeability of the deep coal reservoir.A study was conducted on the rock mechanics features,gas content features and geostress distribution law of the deep coal reservoir.The evaluation results showed that in North Shizhuang of Qinshui Basin,the roof physical properties and sealing of No.3 seam were better than No.15 seam.The permeability of No.3 seam was better than the permeability of No.15 seam in Taiyuan Formation.In the west part of the study area,the depth of No.3 seam was deep and the thickness of No.3 seam was thin.In west part of the study area,the depth of No.15 seam was deep and the thickness of No.15 seam was high.The geostress logging explanation showed that in the south-west part of the study area,the geostress value of No.3 seam was max,the anisotropy of No.3 seam was strong and there was a big difference between the max geostress and the min geostress.In the south-west part of the study area,the geostress value of No.15 seam was max,the anisotropy in the north-west part of the study area was strong,the difference of the geostresses was high and the cracks were developed.Finally,an analysis was conducted on the reservoir features of the deep coalbed methane and the variation law of the deep geostress and the proposals were provided on the development and improvement of the logging explanation.
引文
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[13]陆小霞,黄文辉,王佳旗,等.沁水盆地柿庄北深部煤层煤体结构发育特征[J].煤田地质与勘探,2014,42(3):8-16.LU Xiaoxia,HUANG Wenhui,WANG Jiaqi,et al.The development characteristics of deep coalstructure in northern Shizhuang Area[J].Coal Geology and Exploration,2014,42(3):8-16.
[14]朱国维,王怀秀,韩堂惠,等.地层条件下煤层顶底板声波速度与反射特征[J].煤炭学报,2008,33(12):1391-1396.ZHU Guowei,WANG Huaixiu,HAN Tanghui,et al.Reflection characteristics and acoustic velocity of coal roof and floor under formation conditions[J].Journal of China Coal Society,2008,33(12):1391-1396.
[15]孟召平,张吉昌,JOACHIM Tiedemann.煤系岩石物理力学参数与声波速度之间的关系[J].地球物理学报,2006,49(5):1505-1510.MENG Zhaoping,ZHANG Jichang,JOACHIM Tiedemann.Relationship between physical and mechanical parameters and acoustic wave velocity of coal measures rocks[J].Chinese Journal of Geophysics,2006,49(5):1505-1510.
[16]李强,欧成华,徐乐,等.我国煤岩储层孔-裂隙结构研究进展[J].煤,2008,17(7):1-3.LI Qiang,OU Chenghua,XU Le,et al.Our country coal crag reservoir hole crevasse structural research progress[J].Coal,2008,17(7):1-3.
[17]张伟.阵列声波测井仪器研制及测井数据处理方法研究[D].成都:电子科技大学,2010.
[18]代志旭,吕有厂.煤层气参数井地应力测试及其分布规律研究[J].煤炭工程,2013(5):58-60.DAI Zhixue,LYU Youchang.Geostress testing and distribution study in coalbed methane testing wells[J].Coal Engineering,2013(5):58-60.
[19]孟召平,田永东,李国富.沁水盆地南部地应力场特征及其研究意义[J].煤炭学报,2010,35(6):975-981.MENG Zhaoping,TIAN Yongdong,LI Guofu.Characteristics of in-situ stress field in southern Qinshui Basin and its research significance[J].Journal of China Coal Society,2010,35(6):975-981.
[20]闫萍.利用测井资料计算地应力及其在山前构造带的应用研究[D].北京:中国石油大学(北京),2007.
[21]秦勇,申健,王宝文,等.深部煤层气成藏效应及其耦合关系[J].石油学报,2012,33(1):48-54.QIN Yong,SHENG Jian,WANG Baowen,et al.Accumulation effects and coupling relationship of deep coalbed methane[J].Acat Petrolei Sinica,2012,33(1):48-54.
[22]汪吉林,秦勇,傅雪海.多因素叠加作用下煤储层渗透率的动态变化规律[J].煤炭学报,2012,37(8):1348-1353.WANG Jilin,QIN Yong,FU Xuehai.Dynamic changes law of the coal reservoirs permeability under the superimposition of multi influential factors[J].Journal of China Coal Society,2012,37(8):1348-1353.
[23]申建,秦勇,傅雪海,等.深部煤层气成藏条件特殊性及其临界深度探讨[J].天然气地球科学,2014,25(9):1470-1476.SHEN Jian,QIN Yong,FU Xuehai,et al.Properties of deep coalbed methane reservoir forming conditions and critical depth discussion[J].Natural Gas Geoscience,2014,25(9):1470-1476.
[2]张守仁.深煤层煤层气开发有效途径展望[J].中国煤层气,2011,8(4):18-21.ZHANG Shouren.Proposed effective developing method for the deep coalbed methane[J].China Coalbed Methane,2011,8(4):18-21.
[3]黄晓明,孙强,闫冰夷,等.山西沁水盆地柿庄北地区煤层气潜力[J].中国煤层气,2010,7(5):3-9.HUANG Xiaoming,SUN Qiang,YAN Bingyi,et al.Coalbed methane potential of Shizhuang north Block in Qinshui Basin,Shanxi[J].China Coalbed Methane,2010,7(5):3-9.
[4]赵贤正,朱庆忠,孙粉锦,等.沁水盆地高阶煤层气勘探开发实践与思考[J].煤炭学报,2015,40(9):2131-2136.ZHAO Xianzheng,ZHU Qingzhong,SUN Fenjin,et al.Practice of coalbed methane exploration and development in Qinshui Basin[J].Journal of China Coal Society,2015,40(9):2131-2136.
[5]李俊,唐书恒,张松航,等.页岩气储层测井评价方法[J].煤炭科学技术,2016,44(3):141-146.LI Jun,TANG Shuheng,ZHANG Songhang,et al.Study on methods of logging evaluation of shale gas reservoirs[J].Coal Science and Technology,2016,44(3):141-146.
[6]张作清,孙建孟.页岩气测井评价进展[J].天然气学报,2013,35(3):90-95.ZHANG Zuoqing,SUN Jianmeng.Progress of logging evaluation on shale gas reservoirs[J].Journal of Oil Gas Technology,2013,35(3):90-95.
[7]孙建孟,韩志磊,秦瑞宝,等.致密气储层可压裂性测井评价方法[J].石油学报,2015,36(1):74-80.SUN Jianmeng,HAN Zhilei,QIN Ruibao,et al.Loging evaluation method of fracturing performance in tight gas reservoir[J].Acta Petrolei Sinica,2015,36(1):74-80.
[8]张丽华.火成岩储层测井评价方法研究[D].长春:吉林大学,2009.
[9]叶根喜,HATHERLY P,姜福兴,等.地球物理测井技术在煤矿岩体工程勘探中的应用[J].岩石力学与工程学报,2009,28(7):1342-1352.YE Genxi,HATHERLY P,JIANG Fuxin,et al.Application of geophysical logging technology to investigation of rock mass engineering coal mine[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(7):1342-1352.
[10]黄科,万金彬,苗秀英,等.测井评价煤层气藏面临的挑战[J].测井技术,2014,38(1):22-27.HUANG Ke,WAN Jinbin,MIAO Xiuying,et al.The challenges and research dirction of logging technologies in coalbed methane reservoir[J].Well logging Technology,2014,38(1):22-27.
[11]潘和平.煤层气储层测井评价[J].天然气工业,2005,25(3):48-51.PAN Heping.Evaluation coalbed methane reservoir by loging data[J].Natural Gas Industry,2005,25(3):48-51.
[12]付晓龙,戴俊生,张丹丹,等.沁水盆地柿庄北区块3号煤层裂缝预测[J].煤田地质与勘探,2017,45(1):56-61.FU Xiaolong,DAI Junsheng,ZHANG Dandan,et al.Prediction of fractures of seam No.3 in northern Shizhuang,Qinshui Basin[J].Coal Geology&Exploration,2017,45(1):56-61.
[13]陆小霞,黄文辉,王佳旗,等.沁水盆地柿庄北深部煤层煤体结构发育特征[J].煤田地质与勘探,2014,42(3):8-16.LU Xiaoxia,HUANG Wenhui,WANG Jiaqi,et al.The development characteristics of deep coalstructure in northern Shizhuang Area[J].Coal Geology and Exploration,2014,42(3):8-16.
[14]朱国维,王怀秀,韩堂惠,等.地层条件下煤层顶底板声波速度与反射特征[J].煤炭学报,2008,33(12):1391-1396.ZHU Guowei,WANG Huaixiu,HAN Tanghui,et al.Reflection characteristics and acoustic velocity of coal roof and floor under formation conditions[J].Journal of China Coal Society,2008,33(12):1391-1396.
[15]孟召平,张吉昌,JOACHIM Tiedemann.煤系岩石物理力学参数与声波速度之间的关系[J].地球物理学报,2006,49(5):1505-1510.MENG Zhaoping,ZHANG Jichang,JOACHIM Tiedemann.Relationship between physical and mechanical parameters and acoustic wave velocity of coal measures rocks[J].Chinese Journal of Geophysics,2006,49(5):1505-1510.
[16]李强,欧成华,徐乐,等.我国煤岩储层孔-裂隙结构研究进展[J].煤,2008,17(7):1-3.LI Qiang,OU Chenghua,XU Le,et al.Our country coal crag reservoir hole crevasse structural research progress[J].Coal,2008,17(7):1-3.
[17]张伟.阵列声波测井仪器研制及测井数据处理方法研究[D].成都:电子科技大学,2010.
[18]代志旭,吕有厂.煤层气参数井地应力测试及其分布规律研究[J].煤炭工程,2013(5):58-60.DAI Zhixue,LYU Youchang.Geostress testing and distribution study in coalbed methane testing wells[J].Coal Engineering,2013(5):58-60.
[19]孟召平,田永东,李国富.沁水盆地南部地应力场特征及其研究意义[J].煤炭学报,2010,35(6):975-981.MENG Zhaoping,TIAN Yongdong,LI Guofu.Characteristics of in-situ stress field in southern Qinshui Basin and its research significance[J].Journal of China Coal Society,2010,35(6):975-981.
[20]闫萍.利用测井资料计算地应力及其在山前构造带的应用研究[D].北京:中国石油大学(北京),2007.
[21]秦勇,申健,王宝文,等.深部煤层气成藏效应及其耦合关系[J].石油学报,2012,33(1):48-54.QIN Yong,SHENG Jian,WANG Baowen,et al.Accumulation effects and coupling relationship of deep coalbed methane[J].Acat Petrolei Sinica,2012,33(1):48-54.
[22]汪吉林,秦勇,傅雪海.多因素叠加作用下煤储层渗透率的动态变化规律[J].煤炭学报,2012,37(8):1348-1353.WANG Jilin,QIN Yong,FU Xuehai.Dynamic changes law of the coal reservoirs permeability under the superimposition of multi influential factors[J].Journal of China Coal Society,2012,37(8):1348-1353.
[23]申建,秦勇,傅雪海,等.深部煤层气成藏条件特殊性及其临界深度探讨[J].天然气地球科学,2014,25(9):1470-1476.SHEN Jian,QIN Yong,FU Xuehai,et al.Properties of deep coalbed methane reservoir forming conditions and critical depth discussion[J].Natural Gas Geoscience,2014,25(9):1470-1476.