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Three-dimensional geodetic deformation surveying for Naner area in daqing oilfield

中国有色金属学会会刊：英文版 2005年第S1期15卷 112-115页

作者： LIU Xing-quan~(1, 2), LIU Shao-xuan~2, ZHANG Zhi-wen~3, XU Hai~4. LIU Jian-jun~5 (1. Department of Earth Science, Zhejiang University, Hangzhou 310027, china 2. The Second Oil Recovery Plant of daqing Oilfields Co Ltd, daqing 1634.4. china 3. daqing Logging and Testing Services Company, daqing 1634.1, china 4. longnan telephone station of daqing communications center, daqing 163410, china 5. Department of Civil Engineering, Wuhan Polytechnic University, Wuhan 4.0023, china) Zhejiang Univ Dept Earth Sci Hangzhou 310027 Peoples R China Second Oil Recovery Plant of daqing Oilfields Co Daqing 163414 Peoples R China daqing Commun Ctr Longnan Telephone Stn Daqing 163410 Peoples R China daqing Logging & Testing Serv Co Daqing 163411 Peoples R China Wuhan Polytech Univ Dept Civil Engn Wuhan 430023 Peoples R China

Geodetic deformation severely affects the development of the oilfield and probably causes casing damage or abandonment of injection wells and producers. Therefore, it is meaningful to survey and study three-dimensional geodetic deformation in the process of the oilfield development. In order to study this issue, 11-year long term surveying of three-dimensional geodetic deformation has been carried out while developing Naner area in daqing oilfield. Basic rules of 3-D geodetic deformation have been obtained through surveying. Results show that production and injection under high pressure may cause the changes of surface elevation, and geodetic deformation correlates with simultaneous formation pressure. Precautions and relative technological measurements have been put forward in the waterflood development in Naner region and provide theoretical guidelines for the production and casing preservation of the oilfield. Finally, surveying results are interpreted by porous elastic theory. Mathematical model to calculate 3-D geodetic deformation is put forward in the course of the oilfield development.

关键词： daqing oilfield geodetic deformation producer water injector mathematical model

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