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中国石油勘探  2018, Vol. 23 Issue (2): 43-50    DOI: 10.3969/j.issn.1672-7703.2018.02.006
  石油地质 本期目录 | 过刊浏览 | 高级检索 |
塔里木油田超深高温高压致密气藏地质工程一体化提产实践与认识
张杨1, 杨向同1, 滕起1, 徐永辉2, 薛艳鹏1, 徐国伟1, 李伟1, 彭芬1
1 中国石油塔里木油田公司;
2 能新科(西安)油气技术有限公司
Practice and cognition of geology-engineering integration for the production increasing of HTHP ultra-deep tight gas reservoir in Tarim oilfield
Zhang Yang1, Yang Xiangtong1, Teng Qi1, Xu Yonghui2, Xue Yanpeng1, Xu Guowei1, Li Wei1, Peng Fen1
1 PetroChina Tarim Oilfield Company;
2 ENTI(Xi'an) Oil and Gas Technology Co., Ltd
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摘要 塔里木油田库车前陆区致密砂岩气藏是天然气主力建产区块,自然产能低,需要改造提产才能效益开发,储层超深、高温高压、高地应力、天然裂缝发育且非均质性强,面临的主要挑战是提产机理不清、缺乏有效技术手段,井况苛刻和改造工况复杂,大规模改造施工存在安全风险。针对以上挑战,塔里木油田坚持地质工程一体化,建设多学科一体化提产团队,创新一体化工作模式,利用开放的市场合作机制,协同国内国际技术力量,通过技术资源整合,攻关研究提高储层认识,厘清了提产机理,确定了以改造天然裂缝为目标的缝网改造提产理念,创新形成了缝网酸压和缝网压裂工艺技术,建立了基于天然裂缝可压裂性的改造工艺优选策略;基于井况和改造工况认识,配套了高压压裂车组、大通径完井管柱,研发两套加重压裂液,研发一项专用酸液缓蚀剂,保障了大规模改造需要。地质工程一体化提产模式在实践中不断发展和完善,取得的关键技术推广应用76口井,单井平均产量提高3.28倍,为库车前陆区致密砂岩气藏效益开发提供了提产技术保障。
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张杨
杨向同
滕起
徐永辉
薛艳鹏
徐国伟
李伟
彭芬
关键词 高温高压致密天然裂缝地质工程一体化市场合作机制技术资源整合缝网酸压缝网压裂提产    
Abstract:The tight sandstone gas reservoir in Kuqa foreland area is the principal natural gas productivity construction block in Tarim Oilfield, and its natural productivity is low. In order to realize beneficial development, it is necessary to carry out stimulation to increase the production. The reservoir is characterized by ultra-depth, high temperature and high pressure, high earth stress, developed natural fracture and strong heterogeneity. It is mainly faced with the challenges that the production increasing mechanism is not defined clearly, effective technologies are deficient, well conditions are severe, stimulation situations are complex and large-scale stimulation operation is risky in safety. To deal with these challenges, Tarim oilfield carries out a series of researches. First, it insists on geology-engineering integration, sets up a multi-disciplinary production increasing integration team and builds up the integrated working mode innovatively. Second, it coordinates domestic and foreign technical force by means of the open market cooperation mechanism. Third, by virtue of technological resource integration, the reservoir is further recognized and the production increasing mechanism is clarified. And accordingly the production increasing concept of fracture network stimulation aimed at activating natural fractures is determined, the technologies of fracture network acid fracturing and fracture network fracturing are developed innovatively, and the stimulation technology optimizing strategy based on the fracturing property of natural fracture is established. Fourth, based on the understandings of well condition and stimulation behaviors, high-pressure fracturing truck unit and large-bore completion string are prepared and two sets of weighted fracturing fluids and one dedicated acid corrosion inhibitor are developed to ensure the large-scale stimulation. The production increasing mode of geology-engineering integration is developed and improved continuously in practice. And the developed key technologies have been applied in 76 wells, whose single-well average production is increased by 3.28 times. The research results provide the technical support for the beneficial development of tight sandstone gas reservoir in Kuqa foreland area.
Key wordshigh temperature and high pressure    tight    natural fracture    geology-engineering integration    market cooperation mechanism    technological resource integration    fracture network acid fracturing    fracture network fracturing    production increasing
收稿日期: 2017-10-30      出版日期: 2018-03-16
ZTFLH:     
基金资助:国家科技重大专项"库车坳陷深层-超深层天然气田开发示范工程"(2016ZX05051-003)。
引用本文:   
张杨, 杨向同, 滕起, 徐永辉, 薛艳鹏, 徐国伟, 李伟, 彭芬. 塔里木油田超深高温高压致密气藏地质工程一体化提产实践与认识[J]. 中国石油勘探, 2018, 23(2): 43-50.
Zhang Yang, Yang Xiangtong, Teng Qi, Xu Yonghui, Xue Yanpeng, Xu Guowei, Li Wei, Peng Fen. Practice and cognition of geology-engineering integration for the production increasing of HTHP ultra-deep tight gas reservoir in Tarim oilfield. China Petroleum Exploration, 2018, 23(2): 43-50.
链接本文:  
http://www.cped.cn/CN/10.3969/j.issn.1672-7703.2018.02.006      或      http://www.cped.cn/CN/Y2018/V23/I2/43
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