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Intelligent Well Fluid Controller

A controller and intelligent well technology, applied in wellbore/well components, wellbore/well valve devices, measurement, etc., can solve the problems of reduced pump efficiency, high operating cost, and increased burden on ground driving mechanisms, so as to avoid pressure Well process, the effect of improving pump efficiency

Active Publication Date: 2019-09-27
DAQING DANFENG PETROLEUM TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual production, the degree of submergence needs to be controlled within a reasonable range. Excessive submergence will not only increase the burden on the ground drive mechanism, but also reduce the pump efficiency, which will adversely affect production.
In addition, in the existing technology, it is necessary to kill the well to prevent the well fluid from going up and polluting the environment before the downhole operation. This method not only has relatively high operating costs, but also cannot completely eliminate environmental pollution.

Method used

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  • Intelligent Well Fluid Controller
  • Intelligent Well Fluid Controller
  • Intelligent Well Fluid Controller

Examples

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing:

[0017] The present embodiment includes a shell assembly, which includes an upper joint 1, an outer sleeve 2, an oil connecting sleeve 11 and a lower joint 14, the four are threaded sequentially from top to bottom and sealed by a sealing ring.

[0018] The housing assembly is provided with a sealed cavity, and the structure of the sealed cavity includes a sensor mounting seat 3, a battery mounting short 4, a connecting seat 9 and a motor mounting short 10, the four are sealed and connected sequentially from top to bottom, and the motor mounting The lower end of the short connector 10 is sealed and connected to the upper end of the oil connection sleeve 11, thereby connecting the shell assembly and the sealed cavity as a whole. Sealing the cavity prevents liquids from entering the space around each electrical component, thereby preventing short circuits in the circuit and pre...

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Abstract

The invention discloses an intelligent well fluid controller, and belongs to the technical field of oil field downhole auxiliary tools. The intelligent well fluid controller comprises a shell assembly, the shell assembly comprises an upper connector, an outer sleeve, an oil passing connecting bush and a lower connector which are in threaded connection in sequence from top to bottom, a sealed cavity is formed in the shell assembly and structurally comprises a sensor installing base, a battery installing pup joint, a connecting base and a motor installing pup joint, the lower end of the motor installing pup joint is connected to the upper end of the oil passing connecting bush through sealing, a pressure sensor is installed on the sensor installing base, a battery and a circuit board are installed in the battery installing pup joint, and a pushing rod motor is installed in the motor installing pup joint; a valve assembly is arranged below the pushing rod motor. By automatically controlling outward flowing of fluid in the stratum, the submergence depth of an oil well pump can be controlled within a reasonable range, in this way, it is avoided that high and unnecessary burdens are exerted on the oil well pump because of an excessively large submergence depth, and the pump efficiency is also improved.

Description

technical field [0001] The invention belongs to the technical field of downhole auxiliary tools in oil fields, and in particular relates to an intelligent well fluid controller. Background technique [0002] The submergence, that is, the depth below the liquid level when the pump is lowered, is an important parameter that needs to be monitored when the pumping unit is producing oil. In actual production, the degree of submergence needs to be controlled within a reasonable range. Excessive submergence will not only increase the burden on the ground drive mechanism, but also reduce the pump efficiency, thus adversely affecting production. In addition, in the prior art, it is necessary to kill the well to prevent the well fluid from going up and polluting the environment before the downhole operation. This method not only has relatively high operating costs, but also cannot completely eliminate environmental pollution. Contents of the invention [0003] In order to solve the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/12E21B34/08E21B47/06E21B23/06
Inventor 李永福谢文杰秦春光黄磊谭福利
Owner DAQING DANFENG PETROLEUM TECH DEV CO LTD