Bingfu Luo1, Jian Gao2, Guangfu Zhai1, Han Chen1, Hao Kang3
1CNOOC International Limited, Beijing, China
2State key laboratory of enhanced oil recovery, RIPED, Beijing, China
3Polytechnic College, Hebei Normal University, Shijiazhuang, China
Many oil and gas fields are located at the Middle-East region, especially distributed across Zagros fold belt and Arabic platform slope, most of which were discovered in the 1970s. However, due to the influence of huge reserves, OPEC restrictions, and wars and so on, water-flooding development and artificial lifting are only applied at preliminary status now after long-time natural producing in this region. Moissan Oil Field is located in Iraq and it is of unique regional characteristics in carbonate reservoir lithology and fluid properties. Actually, the artificial lift application of Electrical Submersible Pump (ESP) in this field is also encountered a lot of severe difficulties which will be comprehensively analyzed one by one in details. After that, effective proposal is raised based on geological reservoir, underground well completion, artificial lift design, and operation management and production optimization. The difficulties for ESP application are overcome and the running time of ESP is effectively prolonged.
Oil Field in Middle East; ESP Artificial-lift; High H2S Concentration; High GOR; High Bubble-point Pressure; Heavy Formation Water
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