Dynamic liquid level calculation using heavy oil work diagram:A case study in Tahe oil field
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摘要: 塔河油田为碳酸盐岩超深、超稠油油藏,因油稠配合掺稀生产,具有油套环空环境复杂、井深等特点,同时受测试人员素质、地面干扰等因素影响,液面测出成功率低,严重影响机采井管理。通过分析影响塔河油田液面测试成功率的主要因素,基于液面测出率低的问题,充分考虑碳酸盐岩油藏稠油机抽井的特点,探索了功图载荷计算动液面方法,解决了稠油区块机抽井液面失真难题,可对稠油机采井的生产管理进行指导。Abstract: The Tahe oil field is a carbonate ultra-deep and ultra-heavy oil reservoir featured by production based on dilution, complex oil-casing annulus environment and deep wells. Test personnel and ground interference also led to a low success probability of liquid level measurement and affected management of mechanical pumping wells heavily. This paper analyzed the main factors which influenced liquid level test in the Tahe oil field in view of the characteristics of mechanical pumping well in heavy oil reservoir. A new dynamic liquid level calculation method using work diagram load was applied to solve the difficulty of distortion of liquid level. The method can be adopted to conduct the production management of mechanical pumping wells in heavy oil reservoirs.
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