塔河油田原油深抽工艺技术研究与应用

塔河油田油藏属于缝洞型碳酸盐岩油藏，埋藏深度大（埋深为5350～6600m），流体性质复杂，黏度变化较大，开发难度大。针对稀油生产井普遍存在的泵效低、杆柱载荷大、冲程损失严重、地面设备不配套、调参困难等问题，通过技术研发与引进，形成了以自动补偿泵、双层泵、侧流泵、侧流减载泵为主的稀油深抽工艺．现场应用10井次，累计增油9135t，侧流减载泵实现了最深泵挂4716m。针对稠油生产井普遍存在的稠油难以入泵、大泵下不深、小泵不能满足油井生产、油井普遍高含硫化氢等问题，形成了以小泵深抽、深抽抗稠油电潜泵为主的稠油深抽主导工艺，并在现场进行了20井次以上的推广应用，累计实现增油8．7×10^4；同时开展了水力喷射泵-抽稠泵接力举升先导试验．该工艺反掺稀油由水力喷射泵一级举升至抽稠泵泵挂深度，再由抽稠泵系统举升到地面，实现了5000m人工举升。

The Application and Research of Deep Pumping Technology in Tahe Oilfield

The oil reservoirs in Tahe oilfield belong to the fracture-cavity carbonate reservoir with deep burial depth(5350-6600m),complex fluid property,large variety of viscosity and big difficulty in development.In order to solve the problems of low pump efficiency,big rod string load,more loss of plunger stroke,unmatched equipment and difficult adjusting-parameter in the producers for thin oil,a series of the deep pump-ing technology about thin oil was formed through technology development and introduction.The te...