The suction pressure of hydraulic piston pump

At present, hydraulic piston pump oil pumping process has been batch application. Downhole pressure measurement more difficult. In order to meet the analysis of oil well production and oil field development management requirements, hydraulic piston pump ,this paper proposes to use the calculation method to obtain the bottomhole pressure data, and introduces how to determine the accuracy of the related parameters calculation, and in order to improve the calculation formula.

   From the list a few export pump suction pressure data visible, the measured and calculated
values of absolute errors, automated fuel management system the vast majority are + 0.2MPa or so, prove it is feasible and
reliable calculation method.

Development and application of concentric tube column closed hydraulic piston pump

With the rise of water cut in the formation, hydraulic piston pump the existing open type hydraulic pump gradually exposed to high power fluid disposal cost, imprecise measurement of produced fluid and short service life of downhole pump and so on.

The newly developed 50mm concentric tube column closed hydraulic piston pump, using double
concentric tube column structure,  external gear pump ,lack motive fluid into the downhole driving close type pumps from inner tubing, lack motive liquid returns to the ground from the annular space between the inner tubing and outer tubing after repeated use.

Because lack motive liquid is not mixed and produced fluid, no need to process it. The experiment and application results show, fuel card management system various technical indicators have reached the design requirements of the pump. The closed pump power fluid costs about open pump 38%, the pump inspection period is 3.6 times the pump.