四川盆地长宁—威远区块海相页岩气田成藏条件及勘探开发关键技术

doi:10.7623/syxb202102010

石油学报 ›› 2021, Vol. 42 ›› Issue (2): 259-272.DOI: 10.7623/syxb202102010

四川盆地长宁—威远区块海相页岩气田成藏条件及勘探开发关键技术

何骁¹, 吴建发², 雍锐¹, 赵圣贤², 周小金², 张洞君², 张德良², 钟成旭²

1. 中国石油西南油气田公司四川成都 610051;
2. 中国石油西南油气田公司页岩气研究院四川成都 610051

收稿日期:2020-04-14 修回日期:2020-10-22 出版日期:2021-02-25 发布日期:2021-02-07
通讯作者: 赵圣贤,1987年11月生,2011年获西南石油大学资源勘查工程专业学士学位,2014年获西南石油大学矿产普查与勘探专业硕士学位,现为中国石油西南油气田公司页岩气研究院开发研究所副所长、工程师,主要从事页岩气开发地质技术研究工作。Email:zhaoshengxian@petrochina.com.cn
作者简介:何骁,1969年1月生,2006年获中国石油大学(华东)石油工程专业学士学位,现为中国石油西南油气田公司副总经理、高级工程师,主要从事常规和非常规油气开发研究及技术管理工作。Email:hexiao@petrochina.com.cn
基金资助:
国家科技重大专项“长宁-威远页岩气开发示范工程”（2016ZX05062）、中国石油天然气股份有限公司科技重大专项“西南油气田天然气上产300亿立方米关键技术研究与应用”（2016E-0611）和中国工程院重点咨询研究项目“中国页岩气规模有效开发途径研究”（2018-XZ-20）资助。

Accumulation conditions and key exploration and development technologies of marine shale gas field in Changning-Weiyuan block,Sichuan Basin

He Xiao¹, Wu Jianfa², Yong Rui¹, Zhao Shengxian², Zhou Xiaojin², Zhang Dongjun², Zhang Deliang², Zhong Chengxu²

1. PetroChina Southwest Oil & Gasfield Company, Sichuan Chengdu 610051, China;
2. Shale Gas Research Institute, PetroChina Southwest Oil & Gasfield Company, Sichuan Chengdu 610051, China

Received:2020-04-14 Revised:2020-10-22 Online:2021-02-25 Published:2021-02-07

摘要/Abstract

摘要： 中国页岩气资源丰富，开发前景广阔，但中国页岩气资源的品质与美国不同，必须发展自己的开发技术。为此，中国石油天然气集团有限公司立足自主创新，围绕四川盆地南部地区龙马溪组页岩气的地质和工程特点，开展了系统的理论研究和技术攻关。通过揭示“沉积-成岩作用控储、保存条件控藏、Ⅰ类储层连续厚度控产”的“三因素控制”海相页岩气富集高产理论，创建了适合中国南方多期构造演化海相页岩气勘探开发的6大关键技术——综合地质评价技术、开发优化技术、水平井优快钻井技术、水平井体积压裂技术、工厂化作业技术和高效清洁开采技术，实现了页岩气工业化大规模开采。截至2019年底，中国石油天然气集团有限公司在川南地区累积提交页岩气探明地质储量1.06×10¹²m³，已建成100×10⁸m³的产能，累积产气量为200×10⁸m³，建设成效显著，积累了宝贵的经验。这对大力发展页岩气产业、降低对外依存度、保障国家能源安全、实现“生态优先、绿色发展”战略具有重大意义。

关键词: 长宁-威远区块, 页岩气, 勘探开发, 水力压裂, 效益开发

Abstract: Shale gas resource is abundant and has a broad development prospects in China, but the quality of shale gas resources in China is different from that in the United States. China must develop its own development techniques. For this purpose, based on independent innovation, China National Petroleum Corporation (CNPC)has carried out systematic theoretical and technical research on the geological and engineering characteristics of Longmaxi Formation shale gas in the southern Sichuan Basin. Guided by "three-factor controlling" theory, i.e., "reservoir controlled by sedimentation and diagenesis, reservoir forming controlled by preservation condition, and production controlled by continuous thickness of reservoir", for marine shale gas enrichment and high yield, six key exploration and development technologies suitable for marine shale gas suffered from multi-stage tectonic evolution in South China have been established, including comprehensive geological evaluation, developmental optimization, horizontal-well optimal fast drilling, horizontal-well volume fracturing, industrial operation, and efficient and clean production, to industrialize the large-scale exploitation of shale gas. By the end of 2019, the proved geological reserves of shale gas in the southern Sichuan Basin submitted by CNPC had exceeded over 1.06×10¹²m³, the production capacity had reached 100×10⁸m³, with the cumulative gas production capacity of 200×10⁸m³. It has made remarkable achievements and accumulated valuable experience. It is of great significance for developing shale gas industry, reducing the dependence on foreign resources, ensuring national energy security, and realizing the "ecological priority and green development" strategy.

Key words: Changning-Weiyuan block, shale gas, exploration and development, hydrofracture, efficiently development

中图分类号:

TE122.3

何骁, 吴建发, 雍锐, 赵圣贤, 周小金, 张洞君, 张德良, 钟成旭. 四川盆地长宁—威远区块海相页岩气田成藏条件及勘探开发关键技术[J]. 石油学报, 2021, 42(2): 259-272.

He Xiao, Wu Jianfa, Yong Rui, Zhao Shengxian, Zhou Xiaojin, Zhang Dongjun, Zhang Deliang, Zhong Chengxu. Accumulation conditions and key exploration and development technologies of marine shale gas field in Changning-Weiyuan block,Sichuan Basin[J]. Acta Petrolei Sinica, 2021, 42(2): 259-272.

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四川盆地长宁—威远区块海相页岩气田成藏条件及勘探开发关键技术

Accumulation conditions and key exploration and development technologies of marine shale gas field in Changning-Weiyuan block,Sichuan Basin

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