断控碳酸盐岩油气藏开发地质认识与评价技术——以塔里木盆地为例  

Geological understanding and evaluation technology of fault controlled carbonate reservoir development:A case study of the Tarim Basin

作　　者：江同文 昌伦杰[2] 邓兴梁[2] 李世银[2] 邬光辉[3] 万效国[2] 关宝珠[2] JIANG Tongwen;CHANG Lunjie;DENG Xingliang;LI Shiyin;WU Guanghui;WAN Xiaoguo;GUAN Baozhu(PetroChina Exploration&Production Company,Beijing 100007,China;Exploration and Development Research Institute,Petro-China Tarim Oilfield Company,Korla,Xinjiang 841000,China;Southwest Petroleum University,Chengdu,Sichuan 610500,China)

机构地区：[1]中国石油勘探与生产分公司 [2]中国石油塔里木油田公司勘探开发研究院 [3]西南石油大学

出　　处：《天然气工业》2021年第3期1-9,共9页Natural Gas Industry

基　　金：中国石油天然气股份有限公司重大科技专项“缝洞型碳酸盐岩油气藏效益开发关键技术研究与应用”(编号:2018E-1806)。

摘　　要：塔里木盆地奥陶系海相碳酸盐岩油气资源丰富,但油气藏地质条件与油气分布复杂、油气产出极不稳定、油气开发难度极大。近年来通过油气藏评价与开发攻关研究及实践,取得了走滑断裂断控油气藏勘探开发的重大突破,实现了碳酸盐岩油气藏的效益开发。为此,在分析该盆地碳酸盐岩油气藏特征的基础上,归纳总结了碳酸盐岩走滑断裂断控油气藏开发地质理论认识与开发技术。研究结果表明:①发现了面积为9×104 km2的环满西走滑断裂系统,建立了碳酸盐岩走滑断裂断控油气藏理论;②研发了基于高精度地震采集处理的断控油气藏描述技术,主要包括高密度地震采集处理技术、走滑断裂精细识别技术、断裂带缝洞体储层地震刻画技术;③形成了断控油气藏开发方法与关键工程技术,主要包括评价单元—储量单元—油气藏单元的3级评价方法、断裂破碎带水平井开发技术、水平井碳酸盐岩储层分段改造技术、断控油气藏合理开采方法技术等。结论认为,研究创新形成的走滑断裂断控油气藏的地质理论及其评价开发技术,突破了传统的“古隆起控油”与“相控准层状”油气藏理论认识,取得了坳陷区超深层断控大油气田的重大发现,实现了塔里木盆地复杂碳酸盐岩油气藏效益开发与规模建产,为超深层断控油气藏评价开发提供了理论与技术支撑。There are abundant oil and gas resources in the Ordovician marine carbonate rocks of the Tarim Basin.However,the geological conditions of the oil and gas reservoirs are complicated,oil and gas production is extremely unstable,and oil and gas development is quite difficult.In recent years,a great breakthrough has been made in the exploration and development of strike-slip fault controlled oil and gas reservoirs and benefit development has been realized based on the research and practice of oil and gas reservoir evaluation and development.In this paper,the geological understandings and development technologies of strike-slip fault controlled carbonate oil and gas reservoir development were overviewed and summarized after the characteristics of carbonate oil and gas reservoirs in the Tarim Basin were analyzed.And the following research results were obtained.First,a strike-slip fault system with an area of 9×104 km2 is discovered surrounding Manxi,and the theory of strike-slip fault controlled carbonate oil and gas reservoirs is established.Second,fault controlled oil and gas reservoir description technologies based on high-precision seismic acquisition and processing are researched and developed,including high-density seismic acquisition and processing technology,fine strike-slip fault identification technology,and seismic description technology of fractured-vuggy reservoirs at fault zones.Third,the development methods and key engineering technologies for fault controlled oil and gas reservoirs are formed,including a three-level evaluation method of fault-reserve-reservoir unit,horizontal well development technology for fault zones,staged stimulation technology for carbonate reservoirs by horizontal wells,and reasonable production method and technology for fault controlled reservoirs.In conclusion,based on the innovatively developed geological theories and evaluation and development technologies for strike-slip fault controlled oil and gas reservoirs,the traditional understandings and theories of"paleo-uplift contr

关 键 词：塔里木盆地 奥陶系 超深层 碳酸盐岩油气藏 走滑断裂 控储控藏 评价开发技术 规模建产 

分 类 号：TE34[石油与天然气工程—油气田开发工程] TE37