川南深层页岩气储层含气量测井计算方法
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摘要
页岩储层含气性是页岩气井获产的基础,含气量是页岩气储层评价的关键指标。通过岩心含水饱和度分析,建立了基于黏土含量与有机质含量双重因素影响的非电法页岩储层饱和度计算方法。通过岩心等温吸附实验,确立了兰格缪尔体积和兰格缪尔压力多因素动态计算方法。结合研究区地层在纵向上温度、压力以及总有机碳含量动态变化的特征,建立了基于兰格缪尔等温吸附模型的页岩吸附含气量测井计算模型,在川南地区龙马溪组五峰组深层页岩气储层含气性评价中取得了良好的应用效果。
Gas-bearing property determines whether a shale gas well can produce economical shale gas. Gas content is a key indicator for evaluating the effectiveness of shale gas reservoirs. Through the analysis of core water saturation, a non-electrical saturation method based on clay content and organic matter content was established for calculating the saturation of shale reservoirs. Then by carrying out isothermal adsorption experiments on cores, a multi-factor dynamic calculation method was established for calculating Langmuir volume and Langmuir pressure. Finally according to the dynamic changes of vertical temperature, pressure and TOC content in the study area, a logging calculation model for calculating adsorbed gas by shale reservoir was established based on a Langmuir isothermal adsorption model. Applied to the Longmaxi Formation-Wufeng Formation in southern Sichuan basin, the model worked well in evaluating the gas-bearing property of the deep shale gas reservoirs.
Gas-bearing property determines whether a shale gas well can produce economical shale gas. Gas content is a key indicator for evaluating the effectiveness of shale gas reservoirs. Through the analysis of core water saturation, a non-electrical saturation method based on clay content and organic matter content was established for calculating the saturation of shale reservoirs. Then by carrying out isothermal adsorption experiments on cores, a multi-factor dynamic calculation method was established for calculating Langmuir volume and Langmuir pressure. Finally according to the dynamic changes of vertical temperature, pressure and TOC content in the study area, a logging calculation model for calculating adsorbed gas by shale reservoir was established based on a Langmuir isothermal adsorption model. Applied to the Longmaxi Formation-Wufeng Formation in southern Sichuan basin, the model worked well in evaluating the gas-bearing property of the deep shale gas reservoirs.
引文
[1] 严伟,王建波,刘帅,等.四川盆地焦石坝地区龙马溪组泥页岩储层测井识别 [J].天然气工业,2014,34(6):30-36.
[2] 潘仁芳,伍媛,宋争.页岩气勘探的地球化学指标及测井分析方法初探 [J].中国石油勘探,2009,14(3):6-9,28.
[3] 潘仁芳,赵明清,伍媛.页岩气测井技术的应用 [J].中国科技信息,2010(7):16-18.
[4] 莫修文,李舟波,潘保芝.页岩气测井地层评价的方法与进展 [J].地质通报,2011,30(2-3):400-405.
[5] 杨小兵,杨争发,谢冰,等.页岩气储层测井解释评价技术 [J].天然气工业,2012,32(9):33-36.
[6] 齐宝权,杨小兵,张树东,等.应用测井资料评价四川盆地南部页岩气储层 [J].天然气工业,2011,31(4):44-47.
[7] 舒志国,关红梅,喻璐,等.四川盆地焦石坝地区页岩气储层孔隙参数测井评价方法 [J].石油实验地质,2018,40(1):38-43.
[8] 柳筠.涪陵地区页岩气测井评价参数研究 [J].江汉石油科技,2015,25(3):34-41.
[9] 钟光海,谢冰,周肖,等.四川盆地页岩气储层含气量的测井评价方法 [J].天然气工业,2016,36(8):43-51.
[10] 李军,路箐,李争,等.页岩气储层“四孔隙”模型建立及测井定量表征方法 [J].石油与天然气地质,2014,35(2):266-271.
[11] 石文睿,张超谟,张占松,等.涪陵页岩气田焦石坝页岩气储层含气量测井评价 [J].测井技术,2015,39(3):357-362.
[12] 张晋言,李淑荣,王利滨,等.页岩气测井电性解析及含气性评价:以四川盆地涪陵地区龙马溪组一段—五峰组为例 [J].天然气勘探与开发,2018,41(3):33-41.
[13] 程超,白小军,林海宇,等.川南龙马溪组深层页岩气储层吸附气含量计算方法研究 [J].特种油气藏,2018,25(4):1-6.
[14] 王社教,王兰生,黄金亮,等.上扬子区志留系页岩气成藏条件 [J].天然气工业,2009,29(5):45-60.
[15] 张作清,孙建孟,龚劲松,等.页岩气储层含气量计算模型研究 [J].岩性油气藏,2015,27(6):5-14.
[16] 李军,武清钊,路菁,等.页岩气储层总孔隙度与有效孔隙度测量及测井评价:以四川盆地龙马溪组页岩气储层为例 [J].石油与天然气地质,2017,38(3):602-609.
[17] 林腊梅,张金川,韩双彪,等.泥页岩储层等温吸附测试异常探讨 [J].油气地质与采收率,2012,19(6):30-32.
(1)非法定计量单位,1 ft=12 in=0.304 8 m,下同
[2] 潘仁芳,伍媛,宋争.页岩气勘探的地球化学指标及测井分析方法初探 [J].中国石油勘探,2009,14(3):6-9,28.
[3] 潘仁芳,赵明清,伍媛.页岩气测井技术的应用 [J].中国科技信息,2010(7):16-18.
[4] 莫修文,李舟波,潘保芝.页岩气测井地层评价的方法与进展 [J].地质通报,2011,30(2-3):400-405.
[5] 杨小兵,杨争发,谢冰,等.页岩气储层测井解释评价技术 [J].天然气工业,2012,32(9):33-36.
[6] 齐宝权,杨小兵,张树东,等.应用测井资料评价四川盆地南部页岩气储层 [J].天然气工业,2011,31(4):44-47.
[7] 舒志国,关红梅,喻璐,等.四川盆地焦石坝地区页岩气储层孔隙参数测井评价方法 [J].石油实验地质,2018,40(1):38-43.
[8] 柳筠.涪陵地区页岩气测井评价参数研究 [J].江汉石油科技,2015,25(3):34-41.
[9] 钟光海,谢冰,周肖,等.四川盆地页岩气储层含气量的测井评价方法 [J].天然气工业,2016,36(8):43-51.
[10] 李军,路箐,李争,等.页岩气储层“四孔隙”模型建立及测井定量表征方法 [J].石油与天然气地质,2014,35(2):266-271.
[11] 石文睿,张超谟,张占松,等.涪陵页岩气田焦石坝页岩气储层含气量测井评价 [J].测井技术,2015,39(3):357-362.
[12] 张晋言,李淑荣,王利滨,等.页岩气测井电性解析及含气性评价:以四川盆地涪陵地区龙马溪组一段—五峰组为例 [J].天然气勘探与开发,2018,41(3):33-41.
[13] 程超,白小军,林海宇,等.川南龙马溪组深层页岩气储层吸附气含量计算方法研究 [J].特种油气藏,2018,25(4):1-6.
[14] 王社教,王兰生,黄金亮,等.上扬子区志留系页岩气成藏条件 [J].天然气工业,2009,29(5):45-60.
[15] 张作清,孙建孟,龚劲松,等.页岩气储层含气量计算模型研究 [J].岩性油气藏,2015,27(6):5-14.
[16] 李军,武清钊,路菁,等.页岩气储层总孔隙度与有效孔隙度测量及测井评价:以四川盆地龙马溪组页岩气储层为例 [J].石油与天然气地质,2017,38(3):602-609.
[17] 林腊梅,张金川,韩双彪,等.泥页岩储层等温吸附测试异常探讨 [J].油气地质与采收率,2012,19(6):30-32.
(1)非法定计量单位,1 ft=12 in=0.304 8 m,下同