古龙油田葡萄花油层断层封闭性分析
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摘要
古龙油田断层极为发育,断层的封闭性对研究区油气的运聚起着重要的控制作用,研究断层封闭性有利于预测油气成藏的有利部位。从断层类型、几何特征和埋深对研究区断层封闭性开展地质定性分析,重点从断层两盘岩性对置、泥岩涂抹和应力对断层封闭性进行了定量分析,研究典型断层的封闭演化史。结果表明,古龙油田葡萄花油层一级断层和三级断层封闭性较好,二级断层封闭性一般;平面上鼻状构造断层封闭性好于向斜断层封闭性,其中龙南鼻状构造断层封闭性最好。
Faults in the Gulong oilfield are extremely developed. The fault sealing ability plays an important role in controlling the oil and gas migration and accumulation in the study area,so the study of fault sealing is in favor of the prediction of favorable locations for oil and gas accumulation. Qualitative analysis were carried out on the fault sealing ability in the study area from the aspects of fault type,geometric characteristics and buried depth, focusing on the two sides lithology configuration, clay smearing and stress. The sealing evolution history of typical faults was also studied. The results show that the primary and tertiary faults have good sealing ability,while the sealing ability of the secondary faults is ordinary. The fault sealing ability of the nose structure is superior to that of the syncline fault,in which the fault sealing ability of Longnan nose structure is the best.
Faults in the Gulong oilfield are extremely developed. The fault sealing ability plays an important role in controlling the oil and gas migration and accumulation in the study area,so the study of fault sealing is in favor of the prediction of favorable locations for oil and gas accumulation. Qualitative analysis were carried out on the fault sealing ability in the study area from the aspects of fault type,geometric characteristics and buried depth, focusing on the two sides lithology configuration, clay smearing and stress. The sealing evolution history of typical faults was also studied. The results show that the primary and tertiary faults have good sealing ability,while the sealing ability of the secondary faults is ordinary. The fault sealing ability of the nose structure is superior to that of the syncline fault,in which the fault sealing ability of Longnan nose structure is the best.
引文
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[2]查明,吴孔友,曲江秀,等.断陷盆地油气输导体系与成藏作用[M].东营:中国石油大学出版社,2009,160~190.ZHA Ming,WU Kongyou,QU Jiangxiu,et al.Migration pathway and entrapment of hydrocarbons in faulted basins[M].Dongying:China University of Petroleum Press,2009,160~190.(in Chinese)
[3]许欣欣.古龙油田葡萄花油层沉积微相研究[D].大庆:东北石油大学,2013.XU Xinxin.Putaohua oil layer sedimentary microfacies study on gulong oil field[D].Daqing:Northeast Petroleum University,2013.(in Chinese with English abstract)
[4]王喜鑫.古龙油田葡萄花油层地震解释与断裂特征研究[D].大庆:东北石油大学,2015.WANG Xixin.Seismic interpretation and study on the characteristics of fault in putaohua oil layer in gulong oil field[D].Daqing:Northeast Petroleum University,2015.(in Chinese with English abstract)
[5]王赛,王平平,李超,等.摆宴井油区断层封闭性评价[J].石油地质与工程,2015,29(2):42~45.WANG Sai,WANG Pingping,LI Chao,et al.Fault sealing evaluation of Baiyan oil zone[J].Petroleum Geology and Engineering,2015,29(2):42~45.(in Chinese)
[6]陈永峤,周新桂,于兴河,等.断层封闭性要素与封闭效应[J].石油勘探与开发,2003,30(6):38~40.CHEN Yongqiao,ZHOU Xingui,YU Xinghe,et al.Sealing factors of faults and their sealing effects[J].Petroleum Exploration and Development,2003,30(6):38~40.(in Chinese with English abstract)
[7]吕延防,付广,付晓飞,等.断层对油气的输导与封堵作用[M].北京:石油工业出版社,2013,97~126.LV Yanfang,FU Guang,FU Xiaofei,et al.Faults on oil and gas dredging and sealing[M].Beijing:Petroleum Industry Press,2013,97~126.(in Chinese)
[8]吕延防,马福建.断层封闭性影响因素及类型划分[J].吉林大学学报(地球科学版),2003,33(2):163~166.LV Yanfang,MA Fujian.Controlling factors and classification of fault seal[J].Journal of Jilin University(Earth Science Edition),2003,33(2):163~166.(in Chinese with English abstract)
[9]童亨茂.断层开启与封闭的定量分析[J].石油与天然气地质,1998,19(3):215~220.TONG Hengmao.Quantitative analysis of fault opening and sealing[J].Oil&Gas Geology,1998,19(3):215~220.(in Chinese)
[10]张文彪,陈志海,许华明,等.断层封闭性定量评价——以安哥拉Sangos油田为例[J].油气地质与采收率,2015,22(6):21~26.ZHANG Wenbiao,CHEN Zhihai,XU Huaming,et al.Quantitative evaluation of fault seal:a case study of Sangos oilfield in Angola[J].Petroleum Geology and Recovery Efficiency,2015,22(6):21~26.(in Chinese with English abstract)
[11]孟祥宏,王多云,李树同,等.断层封闭性研究[J].复杂油气藏,2011,4(1):1~4,13.MENG Xianghong,WANG Duoyun,LI Shutong,et al.An overview of research on fault seal property[J].Complex Hydrocarbon Reservoirs,2011,4(1):1~4,13.(in Chinese with English abstract)
[12]程军林,宁吉泽.定量评价断层封堵性[J].断块油气田,1999,6(4):14~17.CHENG Junlin,NING Jize.Quantitative evaluation on fault seal[J].Fault-Block Oil and Gas Field,1999,6(4):14~17.(in Chinese with English abstract)
[13]吕延防,王帅.断层封闭性定量评价[J].大庆石油学院学报,2010,34(5):35~41.LV Yanfang,WANG Shuai.Quantitative evaluation of fault seal[J].Journal of Daqing Petroleum Institute,2010,34(5):35~41.(in Chinese with English abstract)
[14]Allan U S.Model for hydrocarbon migration and entrapment within faulted structures[J].AAPG,1989,73(7):803~811.
[15]吕延防,王伟,胡欣蕾,等.断层侧向封闭性定量评价方法[J].石油勘探与开发,2016,43(2):310~316.LV Yanfang,WANG Wei,HU Xinlei,et al.Quantitative evaluation method of fault lateral sealing[J].Petroleum Exploration and Development,2016,43(2):310~316.(in Chinese with English abstract)
[16]邹华耀,金燕,黄光辉.断层封闭与油气运移和聚集[J].江汉石油学院学报,1999,21(1):9~12,17.ZOU Huayao,JIN Yan,HUANG Guanghui.Fault sealing and its influence on petroleum migration and accumulation[J].Journal of Jianghan Petroleum Institute,1999,21(1):9~12,17.(in Chinese with English abstract)
[17]付广,史集建,吕延防.断层侧向封闭性定量研究方法的改进[J].石油学报,2012,33(3):414~418.FU Guang,SHI Jijian,LV Yanfang.An improvement in quantitatively studying lateral seal of faults[J].Acta Petrolei Sinica,2012,33(3):414~418.(in Chinese with English abstract)
[18]付晓飞,方德庆,吕延防,等.从断裂带内部结构出发评价断层垂向封闭性的方法[J].地球科学—中国地质大学学报,2005,30(3):329~336.FU Xiaofei,FANG Deqing,LV Yanfang,et al.Method of evaluating vertical sealing of faults in Terms of the internal structure of fault zones[J].Earth Science-Journal of China University of Geosciences,2005,30(3):329~336.(in Chinese with English abstract)
[19]任森林,刘琳,徐雷.断层封闭性研究方法[J].岩性油气藏,2011,23(5):101~105,126.REN Senlin,LIU Lin,XU Lei.Research methods of fault sealing[J].Lithologic Reservoirs,2011,23(5):101~105,126.(in Chinese with English abstract)
[20]Lindsay N C,Murphy F C,Walsh J J,et al.Outcrop studies of shale smear on fault surface[J].Special Publications of the International Association of Sedimentologists,1993,15:113~123.