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中国石油勘探  2019, Vol. 24 Issue (2): 174-185    DOI: 10.3969/j.issn.1672-7703.2019.02.005
  石油地质 本期目录 | 过刊浏览 | 高级检索 |
长宁国家级页岩气示范区地质工程一体化最优化关键要素实践与认识
谢军1, 鲜成钢2, 吴建发1, 赵春段3
1 中国石油西南油气田公司;
2 中国石油大学(北京);
3 斯伦贝谢中国公司
Optimal key elements of geoengineering integration in Changning National Shale Gas Demonstration Zone
Xie Jun1, Xian Chenggang2, Wu Jianfa1, Zhao Chunduan3
1 PetroChina Southwest Oil and Gas Field Company;
2 China University of Petroleum(Beijing);
3 Schlumberger(China)
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摘要 长宁国家级页岩气示范区的建设和上产历程,从早期以工程探索和实践为主,到第三阶段依托主体技术、全面推进地质工程一体化,在中国页岩气开发探索中具有很强的代表性。围绕"单井提产、整体增效"的核心要求,需要充分运用各种地质工程数据,系统性地研究水平井箱体、压裂改造、生产制度和开发技术政策这四大最优化关键要素,不断提升从单井到全气田的产量、最终可采储量(EUR)和经济指标。基于地质工程一体化研究形成的三维共享地学模型,运用多学科多参数数据分析、应力敏感页岩多场耦合模拟(包括地质力学、水力压裂缝网建模和气藏数值模拟),以及全气田数值模拟等技术和方法,系统分析和评价工程实施效果,通过在目前主体技术条件下的多方案对比,确定了最优化箱体位置和优化的生产制度,明确了压裂参数及工艺、井距参数及布井的进一步优化方向。为了实现整体优化,提出地质工程一体化需从以单井为主的钻井、完井压裂和生产工程,拓展到全气田开发工程。为此,在国内外首次开展了考虑应力敏感性的页岩气全气田数值模拟研究。
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谢军
鲜成钢
吴建发
赵春段
关键词 地质工程一体化页岩气水平井水力压裂数值模拟    
Abstract:The Changning National Shale Gas Demonstration Zone is a representative case in China's shale gas industry. Its development has transited from the engineering exploration and practice initially to the comprehensive geoengineering integration in the third stage. For purpose of "single-well production increase and overall efficiency improvement", it is necessary to make full use of various geological and engineering data to systematically study four optimal key elements:horizontal well box, fracturing stimulation, production system and development technology, aiming to continuously increasing production from single well to full gas field, and improving the estimated ultimate recovery (EUR) and economic indicators. A 3D shared geoscience model based on geoengineering integration can perform system analysis and evaluation of project implementation effects by multidisciplinary and multi-parameter data analysis, multi-field coupled simulation on stress-sensitive shale (including geomechanics, modeling hydraulic fracture network and gas reservoir numerical simulation) and full gas field numerical simulation. By comparing multiple programs under current technical conditions, optimal box position and production system have been defined. Also, fracturing parameters and process, well location and spacing have been established. In order to achieve overall optimization, it is proposed that geoengineering integration should transform from well-based integration of drilling, completion fracturing and production to full gas field-based development project. As a response, numerical simulation to stress-sensitive shale was carried out on full gas field for the first time at home and abroad.
Key wordsgeoengineering integration    shale gas    horizontal well    hydraulic fracturing    numerical simulation
收稿日期: 2018-04-28      出版日期: 2019-03-15
ZTFLH:     
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)。
引用本文:   
谢军, 鲜成钢, 吴建发, 赵春段. 长宁国家级页岩气示范区地质工程一体化最优化关键要素实践与认识[J]. 中国石油勘探, 2019, 24(2): 174-185.
Xie Jun, Xian Chenggang, Wu Jianfa, Zhao Chunduan. Optimal key elements of geoengineering integration in Changning National Shale Gas Demonstration Zone. China Petroleum Exploration, 2019, 24(2): 174-185.
链接本文:  
http://www.cped.cn/CN/10.3969/j.issn.1672-7703.2019.02.005      或      http://www.cped.cn/CN/Y2019/V24/I2/174
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