多级套管泵
Design of Suction Room and Press-out Pipe of the Casing for the Single-stage Single-suction Horizontal Centrifugal Pump
单级单吸卧式离心泵泵体的吸入室及吐出管设计卧式离心铸造铸铁气缸套的黑斑缺陷及对策
In the stage of cold production, two lifting methods as screw pipe pump and rod pump can be applied, with assisting viscosity reducing measures which include adding viscosity reducing agent through the hollow rod or the production casing annular and electrical rod heating.
在冷采阶段可采用螺杆泵和有杆泵2种举升方式,均需辅以降黏措施,降黏方式有空心杆掺入降黏剂、油套环空掺降黏剂和电杆伴热3种。
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