Boosting water injector for oil field

A technology for oil fields and booster cylinders, which is applied in the fields of production fluids, wellbore/well components, earth-moving drilling, etc., to achieve the effect of improving service life, reducing the requirements for installation piston deviation, and having broad development prospects.

Inactive Publication Date: 2002-12-25
姚庆余
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defects of the existing pressurized water injection device, and provide a method for increasing water injection by using the pressure of the water inlet itself and pressurizing the circulating oil (or other liquid medium) through the pressurized cylinder of the water injection device. The piston of the pressure and booster cylinder adopts a spherical plug body self-positioning anti-deflection piston structure, the piston of the booster cylinder uses a piston touch-sensitive reversing mechanism for reversing, and the circulating oil valve group adopts a ball valve structure oil field pressurized water injection device

Method used

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  • Boosting water injector for oil field
  • Boosting water injector for oil field
  • Boosting water injector for oil field

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Embodiment 1

[0018] Embodiment 1, using the present invention to use the pressure of the water itself and the pressure of the circulating oil to pressurize the water injection through the booster cylinder of the water injection device, the piston of the booster cylinder adopts a spherical plug body self-positioning anti-deflection piston structure, and the piston The reversing adopts the piston touch-sensitive reversing mechanism and the oil field pressurized water injection device adopts the ball valve structure of the circulating oil oil valve group. The incoming water pressure is 11MPa, and the pressurized water injection device in the oil field injects water into the formation, and the outlet pressure of the high-pressure water injection is 26MPa, which can continuously inject water for 5 months. The water injection work meets the water injection requirements. The energy is greatly saved, the cost is reduced, the water injection operation is convenient, and it is easy to popularize and...

Embodiment 2

[0019] Embodiment 2, using the present invention to use the pressure of the water inlet itself and the pressure of the circulating oil to pressurize the water injection through the booster cylinder of the water injection device, the piston of the booster cylinder adopts an oval plug body self-positioning and anti-deflection piston structure, and the piston of the booster cylinder The reversing adopts the piston touch-sensitive reversing mechanism and the oil field pressurized water injection device adopts the ball valve structure of the circulating oil oil valve group. The incoming water pressure is 15MPa, and the pressurized water injection device in the oil field injects water into the formation, and the outlet pressure of the high-pressure water injection is 27MPa, which can continuously inject water for 4 months without failure.

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Abstract

A pressurizing and water-injecting apparatus for oil field is composed of the pressurizing cylinder divided into 4 cavities A, B, C and D by piston and connecting rod, and the self-circulating hydraulic station which consists of oil valve group connected to said cavities A and D, water valve group connected to said cavities B and C, oil pump, oil tank, energy accumulator, filter, electromagnetic change valve, and cooler. They are connected with each other on the basis of the invented function.

Description

technical field [0001] The present invention relates to a liquid displacement machine, in particular to a machine that uses the pressure of the water itself and the pressure of the circulating oil to pressurize the water injection through the booster cylinder of the water injection device. The structure, the piston reversing of the pressurized cylinder adopts the piston touch-sensitive reversing mechanism and the oil valve group of the circulating oil adopts the oilfield pressurized water injection device of the ball valve structure. Background technique [0002] At present, the pressurized water injection device (ZL98201063X) used in the oil field is equipped with a high-pressure water outlet, and another water outlet is used to discharge the water in the form of backwater. Due to the pollution of the backwater, it cannot be directly discharged into the ground, and only special backwater can be laid. The pipeline discharges, and the backwater needs to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20
Inventor 姚庆余
Owner 姚庆余
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