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Intelligent sieve pipe and segmented sand prevention completion pipe string provided with intelligent sieve pipe

A completion string, an intelligent technology, applied in wellbore/well components, production fluids, earth-moving drilling, etc., can solve the problems of incapable of supporting use, inability to achieve tubing pressure, isolation of oil casing annulus, etc., to simplify the process The effect of taking measures to pipe strings, shortening the construction period and saving operating costs

Pending Publication Date: 2019-09-03
SHANDONG BOSAITE PETROLEUM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the development of low-grade reservoirs puts forward higher requirements for supporting various technological measures such as stimulation, injection and recovery, conventional screens cannot achieve pressure in the tubing, Requirements such as isolating the annulus of the oil sleeve make it impossible to be used in conjunction with the above-mentioned technological measures

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  • Intelligent sieve pipe and segmented sand prevention completion pipe string provided with intelligent sieve pipe
  • Intelligent sieve pipe and segmented sand prevention completion pipe string provided with intelligent sieve pipe

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Embodiment Construction

[0017] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0018] On the one hand, the present invention provides an intelligent screen, which includes a coupling 21 and a base pipe 22 threadedly connected with the coupling 21. The base pipe 22 is provided with a number of liquid flow channels 24, and a filter assembly 23 is fixedly arranged outside the base pipe 22. , used to filter the liquid entering the liquid flow channel 24; the liquid flow channel 24 is embedded with a smart plugging body 25 for blocking the liquid flow channel; the smart plugging body 25 is a soluble metal material or can be melted when the temperature is higher than 200 ° C permanent polymer materials.

[0019] For conventional production wells, since the smart screen is soaked in the production layer liquid, the smart plugging body is ...

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Abstract

The invention relates to an intelligent sieve pipe and a segmented sand prevention completion pipe string provided with the intelligent sieve pipe, and belongs to the technical field of oil exploitation. The intelligent sieve pipe comprises a coupling and a basic pipe in threaded connection with the coupling. Multiple liquid flow channels are arranged on the basic pipe. A filter assembly is fixedly arranged on the outer portion of the basic pipe and is used for filtering liquid entering the liquid flow channels. An intelligent blocking body is embedded in each liquid flow channel and used forblocking the liquid flow channel. Each intelligent blocking body is made of a soluble metal material or a meltable high polymer material with the temperature being higher than 200 DEG C. Above all, the functions of pressing in an oil pipe and emptying in an isolation ring sleeve in the processes of pipe string descending and the like can be achieved through the intelligent sieve pipe, and therefore the process measure pipe string is simplified, construction procedures are reduced, the construction period is shortened, and the work cost is saved.

Description

technical field [0001] The invention relates to the technical field of oilfield exploitation, and in particular provides an intelligent screen and a sectioned sand control well completion string equipped with the intelligent screen. Background technique [0002] In the process of oil field development, with the continuous development of high-quality oil reservoirs, the development of low-grade oil reservoirs has gradually become the main development oil reservoir. Since the development of low-grade reservoirs puts forward higher requirements for supporting various technological measures such as stimulation, injection and recovery, conventional screens cannot achieve pressure in the tubing, Requirements such as isolating the annulus of the oil sleeve make it impossible to be used in conjunction with the above-mentioned technological measures. Contents of the invention [0003] In order to solve the technical problems existing in the prior art, the present invention provide...

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Application Information

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IPC IPC(8): E21B43/08
CPCE21B43/086
Inventor 李江涛赵良进杨鹏飞
Owner SHANDONG BOSAITE PETROLEUM TECH CO LTD