石油与天然气地质 ›› 2019, Vol. 40 ›› Issue (2): 423-429.doi: 10.11743/ogg20190220

• 油气开发 • 上一篇    下一篇

Ahdeb油田水平井控水完井及一体化耦合模型

薛衡1,2,3, 黄祖熹1, 王贺华1,3, 安永生4, 刘榧1,3, 成一1,3, 何冰1, 刘卡5   

  1. 1. 振华石油控股有限公司, 北京 100031;
    2. 西南石油大学 油气藏地质及开发工程国家重点实验室, 四川 成都 610500;
    3. 成都北方石油勘探开发技术有限公司, 四川 成都 610000;
    4. 中国石油大学(北京) 石油工程教育部重点实验室, 北京, 102249;
    5. 中国石化 中原石油工程有限公司 佛山三水分公司, 广东 佛山 528000
  • 收稿日期:2018-02-09 修回日期:2018-12-03 出版日期:2019-04-28 发布日期:2019-01-23
  • 第一作者简介:薛衡(1988-),男,博士,采油工程技术。E-mail:xueheng@zhenhuaoil.com。
  • 基金项目:
    四川省国际科技合作与交流研发项目（2017HH0014）；博士后基金项目（2018M633404）。

Water control completion of horizontal wells in Ahdeb oilfield and an integrated coupling model

Xue Heng1,2,3, Huang Zuxi1, Wang Hehua1,3, An Yongsheng4, Liu Fei1,3, Cheng Yi1,3, He Bing1, Liu Ka5   

  1. 1. China Zhenhua Oil Co., Ltd, Beijing 100031, China;
    2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    3. Chengdu North Petroleum Exploration and Development Technology Co., Ltd., Chengdu, Sichuan 610000, China;
    4. MOE Key Laboratory of Petroleum Engineering, China University of Petroleum(Beijing), Beijing 102249, China;
    5. Zhongyuan Petroleum Engineering Co., Ltd., SINOPEC, Foshan, Guangdong 528000, China
  • Received:2018-02-09 Revised:2018-12-03 Online:2019-04-28 Published:2019-01-23

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摘要： Ahdeb油田上部主力层系采用水平井注采井网开发，前期取得了较好开发效果，但开发过程中部分井组稳产与高含水矛盾日益突出，亟需开展水平井调流控水研究。针对Ahdeb油田这类边水或注入水在高渗层或断层裂缝带突窜引起的水平井见水，基于不同钻遇储层特征，形成了水平井控水完井分类治理方案，并建立了一套同时适用于盲筛分段组合、中心管和ICD控水完井工艺的井筒-油藏一体化耦合数值模型。该模型重点考虑了水平井筒受多种作用力下的变质量流动过程，提高了单井的模拟和实际含水率匹配度。研究表明：对于根部见水的水平井，ICD完井及中心管完井均有较好控水效果，含水率从49.8%分别下降至37.8%和35.0%。完井控水装置的限流范围应略大于出水井段，才能有效控制含水率。调流控水装置下入时机应选择在水平井见水前，能够最大程度降低整个生产过程中的含水率，从而提高单井累产油量。

关键词: 调流控水, 控水完井, 数值模拟, 水平井, 碳酸盐岩, 非均质储层, Ahdeb油田

Abstract: The major beds in upper Ahdeb oilfield are developed with success through an early stage horizontal well flooding-production method.However in the current stage,the observed high water cut in many producers has affected the stable production seriously.Therefore,it is urgent to study the water control of horizontal wells.In observing that the horizontal well water breakthrough is caused by active edge or injected water in high-permeability layers or fault fissures,we set up a serious of completion schemes to achieve water control of horizontal wells based on an integrated analysis of encountered reservoirs in drilling,and an newly established numerical model of integrated wellbore-reservoir coupling suitable for simulating screen,central tube,and ICD water control completion.In the modeling,the variable mass flows in horizontal wellbores under multiple forces have been considered to increase the match between the single-well simulation results and the real water cut performance.The results show that the ICD and central tube completion measures are more effective in water control when the water breaks through in the heel section,with the water cut decreasing from 49.8% to 37.8% and 35.0% respectively.In order to achieve efficient water control,the flow-limiting range of the water control completion devices should be slightly longer than that of water breakthrough section.The application of water control devices before water breakthrough of horizontal wells will lower the cumulative water cut during the whole production life to the maximal degree,and in turn this will increase the cumulative production for single wells.

Key words: water control, water control completion, numerical modeling, horizontal well, carbonate rock, heteroge-neous reservoir, Ahdeb oilfield

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