摘要
为进一步了解页岩油气资源,洞悉国外成功开发经验,通过对比北美地区俄亥俄(Ohio)、马塞勒斯(Marcellus)、巴耐特(Barnett)、沃夫坎组(Wolfcamp)页岩与中国龙马溪组、沙河街组页岩的地质背景,明确了中外典型含油气页岩有机地球化学和储层发育特征的异同以及中美页岩油气资源开发动态,并给出了借鉴意义。结果表明:北美开发效果好的含油气页岩大多具有构造简单、厚层页岩发育、厚度变化小、总有机碳含量及有机质成熟度适中、多为Ⅱ型干酪根、脆性矿物含量高、储层压力高等特点。北美页岩油气开发商采用大液量、大砂量、小压裂簇间距和阶段间距来改进压裂工艺,采用井工厂模式来降低土地占用面积,并且在其上进行"拉链式"压裂缩短整体的工程时间,在油田的生产资料数据库中运用大数据分析不同生产参数对产量的影响权重,从而更好地配置生产参数、提高产量。美国页岩油气开发为中国提供的可借鉴的开发经验包括合并油气输送管网、引入民间资本和加大创新奖励。
In order to gain a further understanding of shale gas/oil resource,and to learn from successful overseas development experience,the geological characteristics of shale in Ohio,Marcellus,Barnett,Wolfcamp in North America and the shale in Longmaxi and Shahejie in China were compared in detail.The similarities and differences of typical shales in organic geochemistry and reservoir characteristics in both China and America were deeply clarified,at the same time,the development trends of oil and gas resources in China and the United States were also presented,and the referential values were given.The results show that the oil/gas-bearing shales developed successfully are characterized by simple structure,thick layer,small thickness change,moderate TOC content and organic maturity,rich typeⅡkerogen,rich brittle mineral content and overpressure.North American shale oil developers use large amount of fracturing fluid,large amount of sand,short fracture cluster distance and stage distance to improve the fracturing technique,and use multi-well pad mode to reduce the land occupancy area,and apply the“chain”fracturing to reduce the overall engineering time.By using the big data to analyses the influence weight of different production parameters on oil or gas output,the production increases with the well configured parameters.The development experiences of shale oil or gas that China can learn from U.S.include combining transport pipelines,introducing private capital,and rewarding innovation.
作者
张奥博
汤达祯
陶树
许浩
王海华
庄永涛
ZHANG Aobo;TANG Dazhen;TAO Shu;XU Hao;WANG Haihua;ZHUANG Yongtao(School of Energy Resources,China University of Geosciences(Beijing),Beijing City,100083,China;Coal Reservoir Laboratory of National Engineering Research Center of CBM Development & Utilization,Beijing City,100083,China;Beijing Key Laboratory of Unconventional Natural Gas Geological Evaluation and Development Engineering,Beijing City,100083,China;China Geological Library,Beijing City,100083,China;Oil Production Technology Institute,Dagang Oilfield Company,PetroChina,Tianjin City,300280,China)
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2019年第1期37-45,共9页
Petroleum Geology and Recovery Efficiency
基金
中国地质调查项目"美国Permian和Fort Worth页岩油气盆地文献情报收集与分析"(cgl2017015A1)
