关键词: 塔河油田, 深抽技术, 深抽泵

Abstract: In order to effectively develop deep reservoirs, the selection of pumps in deep pumping technology is a difficult problem for Tahe oilfield. The optimization of deep pump should avoid the problems of large oil bar load, low pump efficiency, short pump detection period and high difficulty of deep well pumping, etc. By investigating the field application of the pump, the characteristics and parameters of the oil recovery work of five common deep pumpes were analyzed and compared. As a result, the deep pumping with side⁃flow loading pumps has the advantage of reducing the load on the sucker rod string. The actual pump depth of deep pumping with bi⁃lamellar pump is the largest. Deep pumping with self⁃compensating pump can reduce pump leakage, prevent sand sticking and prolong the life of deep pump.The oil pump of hydraulic feedback can solve effectively the problem of downward of rod string.The electric submersible pump and rod pump combination can significantly improve pump efficiency. The article provides some reference to the selection of mechanical production mode for other deep wells or the wells with insufficient fluid supply at the bottom of the wells.

Key words: Tahe oilfield, Deep pumping technology, Deep pump