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In-well hydraulic pumping unit in well

A technology for pumping units and pumps, which is applied in wellbore/well components, production fluids, earthwork drilling and production, etc., and can solve the problem that beamless pumping units cannot be installed on oil production platforms and oil production platforms due to the occupied area and height Issues such as limited area and small space

Pending Publication Date: 2021-12-07
高智
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the area of ​​the oil production platform is limited and the space is small, and the well spacing of the cluster wells on the oil production platform is only 2000mm×1800mm. Installed on the oil production platform, this oil production system is not suitable for cluster wells on offshore oil production platforms

Method used

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  • In-well hydraulic pumping unit in well
  • In-well hydraulic pumping unit in well
  • In-well hydraulic pumping unit in well

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. A hydraulic pumping unit in a well includes: a displacement sensor electronic compartment, a cylinder head, a hydraulic oil channel, a cylinder head pressure plate, pressure plate bolts, air holes, a crude oil outlet, a magnetic ring, Sealing ring, piston, hydraulic oil connection port, connecting ring, sensor rod, cylinder body, guide column, cylinder bottom cover, oil rod coupling, oil rod, oil pipe coupling, oil pump assembly, casing, Christmas tree, process Oil pipe, cylinder head lifting ring, hydraulic oil source assembly. The sensor electronic compartment is installed at the center of the steel top of the cylinder head, and the cylinder head and the taper surface of the cylinder casing are in contact with the pressure plate bolts for fastening. The oil cylinder liner flange is installed on the process tubing flange, the process tubing is made of st...

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Abstract

The invention relates to an in-well hydraulic pumping unit. The in-well hydraulic pumping unit comprises a displacement sensor electronic bin, a cylinder cover, a hydraulic oil channel, a cylinder cover pressing plate, a vent hole, a crude oil outlet, a magnetic ring, a piston, a hydraulic oil communication port, a connecting ring, a sensor rod, an oil cylinder body, a guide column, an oil cylinder bottom cover, an oil rod coupling, an oil rod, an oil pipe coupling, an oil well pump, a sleeve, a Christmas tree, a process oil pipe, a cylinder cover lifting ring and a hydraulic oil source. The process oil pipe is made of steel, the inner diameter is larger than the outer diameter of the oil cylinder, and an annular space is formed as an oil extraction channel. The Christmas tree is a connector leading an oil well to the outside and is provided with a valve, a safety system and the like. A displacement sensor is composed of the electronic bin, the magnetic ring and the sensor rod, and the operating position stroke parameters of the oil well pump piston in the oil well pump can be accurately adjusted through the oil cylinder displacement sensor. The in-well hydraulic pumping unit drives the rod type pump to replace an electric submersible pump, the oil well pump does not need to be pulled out when steam is injected, 'injection and production integration 'can be achieved, and the hydraulic pumping unit can be used for offshore cluster wells and areas with high land cost.

Description

technical field [0001] The invention belongs to the field of oil extraction machinery in oilfields, in particular to an in-well hydraulic pumping unit. Background technique [0002] At present, electric submersible pumps are widely used in offshore oil production platforms at home and abroad. This is a multi-stage centrifugal pump. The armored cable transmits 1800 volts of high-voltage electricity from the ground to drive the downhole motor to rotate and drive the impeller to pump crude oil. Its characteristics are High efficiency and simple ground equipment are suitable for small-area multi-well layout of oil production platforms. [0003] With the development of oilfields, a large number of heavy oil blocks need to be exploited. The electric submersible pump cannot work normally in the heavy oil block. It is necessary to inject steam into the oil well to melt and dilute the heavy oil before mining. Because the electric submersible pump is not resistant to temperature , it...

Claims

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Application Information

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IPC IPC(8): E21B43/00E21B43/12
CPCE21B43/129
Inventor 高智
Owner 高智
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