中国陆相致密油效益勘探开发  

Profitable exploration and development of continental tight oil in China

作　　者：胡素云[1,2] 朱如凯 吴松涛[1,2,3] 白斌 杨智[1,2] 崔景伟 HU Suyun;ZHU Rukai;WU Songtao;BAI Bin;YANG Zhi;CUI Jingwei(Research Institute of Petroleum Exploration ＆ Development,PetroChina,Beijing 100083,China;National Energy Tight Oil and Gas E＆P Center,Beijing 100083,China;CNPC Key Laboratory of Oil ＆ Gas Reservoirs,Beijing 100083,China)

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]国家能源致密油气研发中心,北京100083 [3]中国石油天然气集团有限公司油气储层重点实验室,北京100083

出　　处：《石油勘探与开发》2018年第4期737-748,共12页Petroleum Exploration and Development

基　　金：国家油气重大专项(2016ZX05046;2017ZX05001);国家重点基础研究发展计划(973)项目(2014CB239000)

摘　　要：在北美致密油勘探开发现状调研基础上,总结北美致密油规模效益勘探开发的成功经验和做法,分析中国陆相致密油与北美海相致密油成藏地质条件差异,提出中国陆相致密油产业发展的技术对策。北美致密油规模勘探、效益开发有6方面经验值得借鉴:在成熟探区寻找新的效益勘探层系;加强"甜点区"经济评价,重点开发高收益"甜点区";通过重复压裂、立体压裂,最大限度提高致密油储量动用程度;优化钻完井技术,降低工程作业成本;采用商品套期保值措施确保公司长期持续盈利;加强不同资源综合开发利用,提升整体经济效益。中国陆相致密油有较好的资源基础,借鉴北美海相致密油勘探开发的成功经验,针对中国致密油储集层地质条件,提出4方面建议:评价致密油资源潜力,优选致密油勘探战略选区;选准"甜点区"、"甜点段",实现精准高效开发;采用先进致密油压裂改造技术实现经济效益开发;通过管理体制创新,推进致密油规模效益开发。Based on the investigation of tight oil exploration and development in North America, the successful cases of tight oil exploration and development in North America under the background of low oil price are summarized. The geological differences between continental tight oil in China and marine tight oil in North America is analyzed to explore the technical strategies for the industrial development of continental tight oil in China. The experiences of large-scale exploration and profitable development of tight oil in North America can be taken as references from the following 6 perspectives, namely exploring new profitable strata in mature exploration areas, strengthening the economic evaluation of sweet spots and focusing on the investment for high-profitability sweet spots, optimizing the producing of tight oil reserves by means of repetitive fracturing and 3D fracturing, optimizing drilling and completion technologies to reduce the cost, adopting commodity hedging to ensure the sustainable profit, and strengthening other resources exploration to improve the profit of whole project. In light of the high abundance of tight oil in China, we can draw on successful experience from North America, four suggestions are proposed in sight of the geological setting of China＇s lacustrine tight oil： （1） Evaluating the potential of tight oil resources and optimizing the strategic area for tight oil exploration; （2） selecting “sweet spot zone” and “sweet spot interval” accurately for precise and high efficient development; （3） adopting advanced tight oil fracturing technology to realize economic development; （4） innovating management system to promote the large-scale profitable development of tight oil.

关 键 词：陆相致密油 甜点区 甜点段 效益勘探开发 中国 北美 

分 类 号：TE122.2[石油与天然气工程—油气勘探]