苏里格气田南区下古生界气藏气水分布规律及成因
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摘要
针对苏里格气田南区下古生界气藏产水严重、气水分布复杂的问题,利用地质、测井、录井、生产测试等资料对其气水分布规律及成因进行分析和总结。研究结果表明:下古气藏马五_5地层水类型为CaCl_2型,矿化度较高。在平面上,水体主要分布在研究区西部,水体发育相对独立,剖面上气、水分布无统一界面,井与井间连通性较差;气、水分布主要受烃源岩及生烃强度、储层非均质性、构造以及古地貌等因素的影响。进一步将研究区地层水模式总结为:受构造高点控制的边(底)水、构造底部滞留水、致密白云岩封隔的滞留水以及孤立白云岩形成的透镜体水。
In view of the serious water producing and complex gas-water distribution of the Lower Paleozoic gas reservoirs in the southern area of Sulige gasfield,the gas-water distribution law and its causes are analyzed and summarized by using geological,logging,mud logging and production testing data.It is shown that the formation water in lower Paleozoic Ma5_5 gas reservoir is CaCl_2 type with high salinity.On the plane,the water body is mainly distributed in the western part of the study area.The water body develops relatively independently.There is no uniform gas-water interface in the profile,and the connectivity between wells is poor.The distribution of gas and water is mainly influenced by factors such as source rock,hydrocarbon generation intensity,reservoir heterogeneity,structure and paleogeomorphology.The formation water distribution modes in the study area are further summarized as:edge(bottom) water controlled by structural highs,retained water at structural bottom,retained water sealed by dense dolomite and lenticular water body in isolated dolomite.
In view of the serious water producing and complex gas-water distribution of the Lower Paleozoic gas reservoirs in the southern area of Sulige gasfield,the gas-water distribution law and its causes are analyzed and summarized by using geological,logging,mud logging and production testing data.It is shown that the formation water in lower Paleozoic Ma5_5 gas reservoir is CaCl_2 type with high salinity.On the plane,the water body is mainly distributed in the western part of the study area.The water body develops relatively independently.There is no uniform gas-water interface in the profile,and the connectivity between wells is poor.The distribution of gas and water is mainly influenced by factors such as source rock,hydrocarbon generation intensity,reservoir heterogeneity,structure and paleogeomorphology.The formation water distribution modes in the study area are further summarized as:edge(bottom) water controlled by structural highs,retained water at structural bottom,retained water sealed by dense dolomite and lenticular water body in isolated dolomite.
引文
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[16] 于红岩,魏丽,秦晓艳,等.鄂尔多斯盆地西北部奥陶系马家沟组气水分布及成因[J].石油勘探与开发,2016,43(3):396-402.YU Hongyan,WEI Li,QIN Xiaoyan,et al.Gas and water distribution of Ordovician Majiagou Formation in northwest of Ordos Basin,NW China[J].Petroleum Exploration and Development,2016,43(3):396-402.
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[19] 汪洋,李树同,牟炜卫,等.乌审旗—志丹地区奥陶系岩溶古地貌与马五41气水分布关系[J].岩性油气藏,2016,28(2):64-71.WANG Yang,LI Shutong,MU Weiwei,et al.Effect of karst paleogeomorphology of Ordovician on gas-water distribution of Ma 541 in Wushenqi-Zhidan area[J].Lithologic Reservoir,2016,28(2):64-71.
[20] 王宝清,章贵松.鄂尔多斯盆地苏里格地区奥陶系古岩溶储层成岩作用[J].石油实验地质,2006,28(6):518-522.WANG Baoqing,ZHANG Guisong.Ordovician ancient karst reservoir diagenesis in sulige area,Ordos Basin[J].Petroleum Experimental Geology,2006,28(6):518-522.
[21] 夏日元,唐健生,关碧珠,等.鄂尔多斯盆地奥陶系古岩溶地貌及天然气富集特征[J].石油与天然气地质,1999,20(2):133-136.XIA Riyuan,TANG Jiansheng,GUAN Bizhu,et al.Ordovician palaeokarst landform in Ordos Basin and gas enrichment characteristics[J].Oil and Gas Geology,1999,20(2):133-136.
[22] 杨华,王宝清,孙六一,等.鄂尔多斯盆地古隆起周边地区奥陶系马家沟组储层影响因素[J].岩性油气藏,2013,25(3):9-17.YANG Hua,WANG Baoqing,SUN Liuyi,et al.Influencing factors of reservoirs for Ordovician Majiagou Formation in the surrounding area of paleo-uplift in Ordos Basin[J].Lithologic Reservoir,2013,25(3):9-17.
[23] 王作乾,何顺利.靖边下古生界气藏马五段碳酸盐岩储层综合评价[J].石油天然气学报,2009,31(4):180-182.WANG Zuogan,HE Shunli.Comprehensive evaluation of carbonate reservoirs in mawu section of lower Paleozoic gas reservoir in Jingbian[J].Journal of Petroleum and Natural Gas,2009,31(4):180-182.
[2] 代金友,王蕾蕾,李建霆,等.苏里格西区气水分布特征及产水类型解析[J].特种油气藏,2011,18(2):69-72.DAI Jinyou,WANG Leilei,LI Jianting,et al.Analysis of gas-water distribution characteristics and water-producing types in Suligexi Area[J].Special Oil Gas Rservoir,2011,18(2):69-72.
[3] 代金友,李建霆,王宝刚,等.苏里格气田西区气水分布规律及其形成机理[J].石油勘探与开发,2012,39(5):524-529.DAI Jinyou,LI Jianting,WANG Baogang,et al.Distribution law and formation mechanism of gas and water in the western part of Sulige Gas Field[J].Petroleum Exploration and Development,2012,39(5):524-529.
[4] 金大权,张春,张春雨,等.苏里格气田东区马五段4亚段气藏气水分布模式及控制因素研究[J].石油天然气学报,2014,36(5):11-14.JIN Daquan,ZHANG Chun,ZHANG Chunyu,et al.Study on distribution pattern and control factors of gas and water in Ma54 section in the eastern section of Sulige gas field[J].Journal of Petroleum and Natural Gas,2014,36(5):11-14.
[5] 王颖.苏里格气田苏11区块气水分布特征及控制因素分析[J].非常规油气,2017,4(3):25-28.WANG Ying.Analysis of gas-water distribution characteristics and control factors in block Su11 of Sulige Gas Field[J].Unconventional Oil and Gas,2017,4(3):25-28.
[6] 窦伟坦,刘新社,王涛.鄂尔多斯盆地苏里格气田地层水成因及气水分布规律[J].石油学报,2010,31(5):767-773.DOU Weitan,LIU Xinshe,WANG Tao.The origin of formation water and the regularity of gas and water distribution for the Sulige Gas Field,Ordos Basin[J].Acta Petrolei Sinica,2010,31(5):767-773.
[7] 贾爱林,何东博.天然气开发理论与实践[M].北京:石油工业出版社,2013:83.
[8] 王蕾蕾,陈红飞,王京舰,等.苏里格气田南区下古生界气藏流动单元量化与控水开发对策[J].天然气勘探与开发,2017,40(4):90-95.WANG Leilei,CHEN Hongfei,WANG Jingjian,et al.The quantification of flow unit and the preparation of water-control development strategy for Lower Palaeozoic gas reservoir in the southern area of Sulige Gas Field[J].Natural Gas Exploration and Development,2017,40(4):90-95.
[9] 付晓燕.下古生界气藏马五5段碳酸盐岩开发目标评价[J].石油化工应用,2014,33(9):75-80.FU Xiaoyan.Evaluation of the development goal of carbonate rock in the Ma55 section of lower Paleozoic gas reservoir[J].Application of Petrochemical Industry,2014,33(9):75-80.
[10] 张岳华,雷卞军,杨勇.苏里格南区马五5亚段储层特征[J].天然气技术与经济,2015,9(2):9-12.ZHANG Yuehua,LEI Bianjun,YANG Yong.Reservoir characteristics of Ma55 subsection in south sulige district[J].Natural Gas Technology and Economy,2015,9(2):9-12.
[11] 赵卫卫,王秀娟,杨兆林,等.苏里格地区下古生界马家沟组地层水化学特征与天然气聚集关系[J].西安石油大学学报(自然科学版),2012,27(1):35-41,52.ZHAO Weiwei,WANG Xiujuan,YANG Zhaolin,et al.Relationship between hydrochemical characteristics of Majiagou formation water in Lower Paleozoic in Sulige region and natural gas accumulation[J].Journal of Xi'an Petroleum University (Natural Science Edition),2012,27(1):35-41,52.
[12] 吴巧英,谢润成,陈珊珊,等.中扬子地区地层水特征及与油气保存的关系[J].石油地质与工程,2012,26(5):35-38.WU Qiaoying,XIE Runcheng,CHEN Shanshan,et al.Stratigraphic water characteristics in the central Yangtze region and their relationship with oil and gas conservation[J].Petroleum Geology and Engineering,2012,26(5):35-38.
[13] 郑小鹏,汪淑洁,郝龙,等.苏里格气田南区马五5亚段气水特征研究与判识[J].新疆石油地质,2018,39(2):158-162.ZHENG Xiaopeng,WANG Shujie,HAO Long,et al.Research and identification of gas and water characteristics in Ma55 submember in the Southern District of Sulige Gas Field[J].Xinjiang Petroleum Geology,1988,39(2):158-162.
[14] 李贤庆,侯读杰,柳常青,等.鄂尔多斯中部气田下古生界水化学特征及天然气藏富集区判识[J].天然气工业,2002,22(4):10-14.LI Xianqing,HOU Dujie,LIU Changqing,et al.Hydrochemical characteristics of the lower Paleozoic boundary of ordos central gas field and the judgment of natural gas reservoir enrichment area[J].Natural Gas Industry,2002,22(4):10-14.
[15] 陈娟萍,赵小会,安文红,等.靖边气田西部奥陶系风化壳气藏气水关系研究[J].石油化工应用,2014,33(3):81-84,99.CHEN Juanping,ZHAO Xiaohui,AN Wenhong,et al.Study on the gas-water relationship of the weathered crust gas reservoir of the ordovician in the west of Jingbian gas field[J].Application of Petrochemical Industry,2014,33(3):81-84,99.
[16] 于红岩,魏丽,秦晓艳,等.鄂尔多斯盆地西北部奥陶系马家沟组气水分布及成因[J].石油勘探与开发,2016,43(3):396-402.YU Hongyan,WEI Li,QIN Xiaoyan,et al.Gas and water distribution of Ordovician Majiagou Formation in northwest of Ordos Basin,NW China[J].Petroleum Exploration and Development,2016,43(3):396-402.
[17]余朱宇.苏里格气田桃2区块马五段气、水分布规律及其主控因素[D].西安:西北大学,2017.
[18] 林家善,周文,张宗林,等.靖边气田下古气藏相对富水区控制因素及气水分布模式研究[J].大庆石油地质与开发,2007(5):72-74.LIN Jiashan,ZHOU Wen,ZHANG Zonglin,et al.Research on dominant factors and gas-water distribution modes in relative water rich area in Low Palaeozoic of Jingbian gas field[J].Daqing Petroleum Geology and Development,2007(5):72-74.
[19] 汪洋,李树同,牟炜卫,等.乌审旗—志丹地区奥陶系岩溶古地貌与马五41气水分布关系[J].岩性油气藏,2016,28(2):64-71.WANG Yang,LI Shutong,MU Weiwei,et al.Effect of karst paleogeomorphology of Ordovician on gas-water distribution of Ma 541 in Wushenqi-Zhidan area[J].Lithologic Reservoir,2016,28(2):64-71.
[20] 王宝清,章贵松.鄂尔多斯盆地苏里格地区奥陶系古岩溶储层成岩作用[J].石油实验地质,2006,28(6):518-522.WANG Baoqing,ZHANG Guisong.Ordovician ancient karst reservoir diagenesis in sulige area,Ordos Basin[J].Petroleum Experimental Geology,2006,28(6):518-522.
[21] 夏日元,唐健生,关碧珠,等.鄂尔多斯盆地奥陶系古岩溶地貌及天然气富集特征[J].石油与天然气地质,1999,20(2):133-136.XIA Riyuan,TANG Jiansheng,GUAN Bizhu,et al.Ordovician palaeokarst landform in Ordos Basin and gas enrichment characteristics[J].Oil and Gas Geology,1999,20(2):133-136.
[22] 杨华,王宝清,孙六一,等.鄂尔多斯盆地古隆起周边地区奥陶系马家沟组储层影响因素[J].岩性油气藏,2013,25(3):9-17.YANG Hua,WANG Baoqing,SUN Liuyi,et al.Influencing factors of reservoirs for Ordovician Majiagou Formation in the surrounding area of paleo-uplift in Ordos Basin[J].Lithologic Reservoir,2013,25(3):9-17.
[23] 王作乾,何顺利.靖边下古生界气藏马五段碳酸盐岩储层综合评价[J].石油天然气学报,2009,31(4):180-182.WANG Zuogan,HE Shunli.Comprehensive evaluation of carbonate reservoirs in mawu section of lower Paleozoic gas reservoir in Jingbian[J].Journal of Petroleum and Natural Gas,2009,31(4):180-182.