Hydraulic oil production method and device

Abstract

The hydraulic oil extraction device comprise a ground hydraulic power for supplying high temperature and high pressure power liquid, a ground heater, a hydraulic power pipe that connects through a hollow oil extracting pole in the oil pipe and a stroke change-over valve nested the piston rod on the dual direction hydraulic pump with the piston rod having pistons at both ends. From bottom to up of the upper pump, there exists an upper pump outlet valve and a bottom pump valve, which connect respectively with the oil pipe and the outlet of the inlet valve of the bottom pump below the bottom pump cavity. Inlet of the upper outlet valve connects with the outlet of the upper pump inlet valve under the bottom pump let valve though pipe fittings. Discharging end of the adynamia hydraulic pipe connects with one of the channel of the stroke change-over valve, and the discharging end connects with the oil pipe through the pump heating tail pipe. When the upper pump discharges oil, the bottom pump absorbs oil or vice versa. This continuous alternating circulation carries the crude oil to the ground, improves the oil extraction efficiency and it applies to all kinds of oils.

Description

technical field [0001] The invention relates to an oil extraction method and equipment, in particular to a hydraulic oil extraction method and its device, which are suitable for various types of crude oil extraction in oil wells, inclined wells, horizontal wells, offshore platforms and oil fields. Background technique [0002] Heavy oil occupies a certain proportion of the world's petroleum resources. This type of oil is characterized by high asphaltene and colloid content, high freezing point, and high viscosity. Therefore, it adds great difficulty to oil extraction. The distribution of heavy oil resources in my country is also very wide, accounting for more than 20% of the total land oil resources. The way to solve this difficult problem at present is to use other special equipment and measures to reduce the viscosity of the crude oil in the well string while the pumping unit is pumping oil. Such as injecting hot water, hot oil or chemical viscosity reducer into the well....

AI Technical Summary

Problems solved by technology

This not only increases the cost of oil extraction, but also lowers the extraction efficiency

In addition, due to its structural reasons, the traditional pumping unit has low working efficiency, serious wear of moving parts, short service life and high failure rate, resulting in frequent downtime for maintenance

Although the traditional pumping unit has all kinds of disadvantages and unsatisfactory defects, there is no ideal mining equipment to replace it so far, which makes oil production companies use the traditional pumping unit helplessly year after year, It is still used day after day

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