南美洲Llanos盆地Dorotea区块岩性—构造油藏勘探开发技术与实践
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摘要
针对南美洲Llanos盆地Dorotea区块低幅度构造圈闭落实难度大、砂体成因及展布不清楚、新井投产后含水上升、钻井事故率高等技术难题,在充分调研国内外类似油田成熟的勘探开发理论与技术基础上,通过开展专项技术研究,探索形成了地层划分与小层对比、低幅度构造解释、薄储层预测、油水层识别、稀疏井网油藏地质建模、油藏数值模拟、水平井开采、复杂井眼条件下优快钻井以及射孔参数优化等配套技术系列,有效地解决了制约低幅度、强底水驱、岩性—构造型油藏的滚动勘探及储量难以动用问题,使该项目剩余圈闭有所增加、探井成功率明显提高,储量、产量规模大幅增加,经营效益彻底改善。
Located in the slope belt of Llanos Basin in South America, Dorotea block has a number of technological bottlenecks, such as diffi culty for confi rmation of low-amplitude structural trap, unclear genesis and distribution of sand body, high water-cut after new wells put into production, and high drilling accident rate. Based on study of mature exploration and development theories and technologies for similar oilfi elds both at home and abroad, special technological study is conducted to develop a series of technologies, such as stratigraphic classifi cation and layer correlation, interpretation of low-amplitude structure, prediction of thin layers, identifi cation of oil and water layers, geological modeling for sparse well pattern, reservoir numerical simulation, horizontal well production, optimization of drilling under complicated hole conditions, and optimization of perforation parameters. Those technologies have effectively solved the bottlenecks in progressive exploration of low-amplitude lithologic-structural oil reservoir with strong bottom water driving. As a result, the remaining traps of this project are increased while success rate of exploration well is obviously improved. With the reserve and production signifi cantly raised, the economic performance is also improved substantially.
Located in the slope belt of Llanos Basin in South America, Dorotea block has a number of technological bottlenecks, such as diffi culty for confi rmation of low-amplitude structural trap, unclear genesis and distribution of sand body, high water-cut after new wells put into production, and high drilling accident rate. Based on study of mature exploration and development theories and technologies for similar oilfi elds both at home and abroad, special technological study is conducted to develop a series of technologies, such as stratigraphic classifi cation and layer correlation, interpretation of low-amplitude structure, prediction of thin layers, identifi cation of oil and water layers, geological modeling for sparse well pattern, reservoir numerical simulation, horizontal well production, optimization of drilling under complicated hole conditions, and optimization of perforation parameters. Those technologies have effectively solved the bottlenecks in progressive exploration of low-amplitude lithologic-structural oil reservoir with strong bottom water driving. As a result, the remaining traps of this project are increased while success rate of exploration well is obviously improved. With the reserve and production signifi cantly raised, the economic performance is also improved substantially.
引文
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[21]金成志,杨东,张永平,等.松辽盆地北部非均质致密油水平井增产改造设计优化技术[J].中国石油勘探,2014,19(6):40-46.Jin Chengzhi,Yang Dong,Zhang Yongping,et al.Optimization techniques for stimulation design of horizontal wells of heterogeneous tight oil in Northern Songliao Basin[J].China Petroleum Exploration,2014,19(6):40-46.
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[23]薄启亮.海外石油勘探开发技术及实践[M].北京:石油工业出版社,2010.Bao Qiliang.Overseas petroleum exploration&development technology and practice[M].Beijing:Petroleum Industry Press,2010.
[24]朱圣举,张明禄,史成恩.底水油藏的油井产量与射孔程度及压差的关系[J].新疆石油地质,2000,21(6):495-497.Zhu Shengju,Zhang Minglu,Shi Chengen.Discussions on production rate,perforation and differential pressure in a bottom-water reservoir[J].Xinjiang Petroleum Geology,2000,21(6):495-497
[25]刘玉芝.油气井射孔井壁取心技术手册[M].北京:石油工业出版社,2000.Liu Yuzhi.Oil-gas well perforation sidewall core manual[M].Beijing:Petroleum Industry Press,2000.
[2]朱毅秀,刘洛夫,金强.亚诺斯盆地油气地质特征及有利区带预测[J].新疆石油地质,2004,25(1):110-113.Zhu Yixiu,Liu Luofu,Jin Qiang.Petroleum geology and favorable zones for hydrocarbon exploration in Llanos Basin,Colombia[J].Xinjiang Petroleum Geology,2004,25(1):110-113.
[3]张金伟,闫爱英,柳文秀,等.亚诺斯盆地Cabiona区块油气成藏规律[J].油气地质与采收率,2012,19(4):24-26.Zhang Jinwei,Yan Aiying,Liu Wenxiu,et al.Hydrocarbon accumulation characteristics of Cabiona block in Llanos basin[J].Petroleum Geology and Recovery Efficiency,2012,19(4):24-26.
[4]林水城,傅恒,达利亚,等.哥伦比亚Llanos盆地中部始—中新统Carbonera组层序地层特征[J].物探化探计算技术,2013,35(1):79-85.Lin Shuicheng,Fu Heng,Da Liya,et al.Sequence stratigraphy of Eocene-Miocene carbonera formation in middle Llanos basin[J].Computing Techniques for Geophysical and Geochemical Exploration,2013,35(1):79-85.
[5]孙宇,廖远,王振云.大庆萨尔图油田葡一组精细地质及剩余油分布研究[J].中国石油勘探,2011,16(2):39-43.Sun Yu,Liao Yuan,Wang Zhenyun.Fine geology and remaining oil distribution study in Saertu oilfield[J].China Petroleum Exploration,2011,16(2):39-43.
[6]杜金虎,赵邦六,王喜双,等.中国石油物探技术攻关成效及成功做法[J].中国石油勘探,2011,16(5-6):1-7.Du Jinhu,Zhao Bangliu,Wang Xishuang,et al.Achievements and successful experience of Petro China in geophysical research[J].China Petroleum Exploration,2011,16(5-6):1-7.
[7]张树林,廖伶媛.海外油气勘探关键技术难题及解决思路[J].石油科技论坛,2012,31(2):47-52.Zhang Shulin,Liao Lingyuan.Key technical issues and sloutions for overseas petroleum exploration[J].Oil Forum,2012,31(2):47-52.
[8]王大兴,赵玉华,周义军,等.苏里格气田多波地震处理与储层预测技术研究及应用[J].中国石油勘探,2011,16(5-6):95-102.Wang Daxing,Zhao Yuhua,Zhou Yijun,et al.Study and application of multi-wave seismic processing and reservoir prediction techniques in Sulige gas field[J].China Petroleum Exploration,2011,16(5-6):95-102.
[9]梁顺军,肖宇.库车坳陷西秋构造带盐下低幅度构造圈闭研究及勘探思路[J].中国石油勘探,2012,17(1):19-24.Liang Shunjun,Xiao Yu.Study and exploration idea about low-amplitude subsalt structure traps in Xiqiu structural belt,Kuqa depression[J].China Petroleum Exploration,2012,17(1):19-24.
[10]高彦楼,李淑筠.关于海外项目技术支撑模式的思考[J].石油科技论坛,2014,33(6):31-35.Gao Yanlou,Li Shujun.Tecnological support pattern of overseas project[J].Oil Forum,2014,33(6):31-35.
[11]石文龙,赖维成,魏刚,等.渤海428构造围斜坡区构造—岩性油气藏成藏规律与勘探潜力分析[J].中国石油勘探,2012,17(2):22-26.Shi Wenlong,Lai Weicheng,Wei Gang,et al.Hydrocarbon accumulation regulation and exploration potential analysis of structural-lithologic reservoir in slope zone of structure 428,Bohai Basin[J].China Petroleum Exploration,2012,17(2):22-26.
[12]周从安,胡美玲,佟凤芝,等.廊固凹陷断陷期层序地层与沉积充填样式[J].中国石油勘探,2012,17(6):38-42.Zhou Congan,Hu Meiling,Tong Fengzhi,et al.Rift sequential formation and sedimentary infill pattern of Langgu depression[J].China Petroleum Exploration,2012,17(6):38-42.
[13]郑荣才,文华国,李凤杰.高分辨率层序地层学[M].北京:地质出版社,2010.Zheng Rongcai,Wen Huaguo,Li Fengjie.High-resolution Sequence Stratigraphy[M].Beijing:Geological Publishing House,2010.
[14]梁兵.高邮凹陷断层—岩性油气藏勘探技术与实践[J].中国石油勘探,2013,18(4):36-49.Liang Bing.Fault-lithologic reservoir exploration technology and practice in Gaoyou sag[J].China Petroleum Exploration,2013,18(4):36-49.
[15]张金亮,谢俊.油田开发地质学[M].北京:石油工业出版社,2011.Zhang Jinliang,Xie Jun.Development Geology[M].Beijing:Petroleum Industry Press,2011.
[16]王彦仓,秦凤启,杜维良,等.地震属性优选、融合探讨[J].中国石油勘探,2013,18(6):69-73.Wang Yancang,Qin Fengqi,Du Weiliang,et al.Discussions on optimization and fusion of seismic attributes[J].China Petroleum Exploration,2013,18(6):69-73.
[17]张冲,毛志强,张超,等.低阻油层的成因机理及测井识别方法研究[J].工程地球物理学报,2008,5(1):48-53.Zhang Chong,Mao Zhiqiang,Zhang Chao,et al.A survey on genetic mechanism and identification methods of low-resistivity layer[J].Chinese Journal of Engeering Geophysics,2008,5(1):48-53.
[18]贾爱林.精细油藏描述与地质建模技术[M].北京:石油工业出版社,2010.Jia Ailin.Detailed reservoir description and geological modeling technology[M].Beijing:Petroleum Industry Press,2010.
[19]张烈辉.油气藏数值模拟基本原理[M].北京:石油工业出版社,2005.Zhang Liehui.The basic principle of reservoir numerical simulation[M].Beijing:Petroleum Industry Press,2005.
[20]沈忠厚.现代钻井技术发展趋势[J].石油勘探与开发,2005,32(1):89-91.Shen Zhouhou.Development trend of the modern drilling technology[J].Petroleum Exploration and Development,2005,32(1):89-91.
[21]金成志,杨东,张永平,等.松辽盆地北部非均质致密油水平井增产改造设计优化技术[J].中国石油勘探,2014,19(6):40-46.Jin Chengzhi,Yang Dong,Zhang Yongping,et al.Optimization techniques for stimulation design of horizontal wells of heterogeneous tight oil in Northern Songliao Basin[J].China Petroleum Exploration,2014,19(6):40-46.
[22]朱中谦,宋文杰.提高砂岩底水油藏原油采收率的新方法[J].新疆石油地质,2001,22(2):144-146.Zhu Zhongqian,Song Wenjie.A new improved recovery method for complicated sandstone reservoir with bottomwater[J].Xinjiang Petroleum Geology,2001,22(2):144-146.
[23]薄启亮.海外石油勘探开发技术及实践[M].北京:石油工业出版社,2010.Bao Qiliang.Overseas petroleum exploration&development technology and practice[M].Beijing:Petroleum Industry Press,2010.
[24]朱圣举,张明禄,史成恩.底水油藏的油井产量与射孔程度及压差的关系[J].新疆石油地质,2000,21(6):495-497.Zhu Shengju,Zhang Minglu,Shi Chengen.Discussions on production rate,perforation and differential pressure in a bottom-water reservoir[J].Xinjiang Petroleum Geology,2000,21(6):495-497
[25]刘玉芝.油气井射孔井壁取心技术手册[M].北京:石油工业出版社,2000.Liu Yuzhi.Oil-gas well perforation sidewall core manual[M].Beijing:Petroleum Industry Press,2000.
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