Temperature testing device used in cooperation with temporary plugging agent

A technology of testing device and temporary plugging agent, applied in wellbore/well components, earthwork drilling, construction, etc., can solve the problems of cumbersome plugging work and increase plugging costs, etc., and achieve convenient fracturing plugging and reduce The cost of blocking, the effect of convenient use

Inactive Publication Date: 2021-09-28
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention proposes a temperature testing device used with temporary plugging agent, which solves the problem that oil well plugging work is relatively cumbersome and the temporary plugging agent plugging device and temperature measuring device are set separately, which increases the cost of plugging

Method used

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  • Temperature testing device used in cooperation with temporary plugging agent
  • Temperature testing device used in cooperation with temporary plugging agent
  • Temperature testing device used in cooperation with temporary plugging agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: When the device is in use, the setting bridge plug mechanism 1 is first assembled, and after the assembly is completed, the protective shell 402 in the temperature measuring mechanism 4 is set on the outer casing 102 of the setting bridge plug mechanism 1 The circumferential side wall then rotates the protective shell 402, so that the first threaded groove 404 inside the protective shell 402 rotates and moves downward in the first thread 106, and then the bottom end of the protective shell 402 is clamped inside the thread limiting groove 105, And the protective shell 402 is limited by the limit block 104 to prevent the protective shell 402 from moving downward. At the same time, the threaded fixed cover 401 is connected to the protective shell 402 through the housing 102, and the threaded fixed cover 401 is rotated so that the screw thread is fixed. The cover 401 rotates on the first thread 106 on the side wall of the housing 102, so that the top of the pro...

Embodiment 2

[0030] Embodiment 2: At the same time, the top of the protective shell 402 can be installed downwards, so that the second thread 403 is threadedly connected with the thread limiting groove 105, and then the second thread 405 and the first thread 106 inside the screw fixing cover 401 are connected The threaded fixing cover 401 is installed on the side wall of the casing 102, so as to limit the bottom end of the protective casing 402, and then the measurement can be performed.

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Abstract

The invention discloses a temperature testing device used in cooperation with a temporary plugging agent, and relates to the technical field of temporary plugging agents. In order to solve the problems that existing oil well measurement work is tedious, a temporary plugging agent extrusion plugging device and a temperature measuring device are arranged separately, and consequently the plugging cost is increased, the scheme is provided; and the temperature testing device comprises a setting bridge plug mechanism and a temperature measuring mechanism. The temperature measuring mechanism is arranged on the circumferential side wall of the setting bridge plug mechanism in a sleeving manner and used for measuring the temperature in an oil well body, and an ash squeezing tool is arranged at one side of the setting bridge plug mechanism and used for being inserted into the setting bridge plug mechanism to convey the temporary plugging agent. The temperature testing device is novel in structure, the device does not need to be fed into the well through two-time hydraulic driving, the plugging cost is reduced, meanwhile, the condition that the temperature measuring device needs to be taken out back and forth and then fracturing plugging is conducted is avoided, fracturing plugging is convenient and fast, and use is convenient.

Description

technical field [0001] The invention relates to the technical field of temporary blocking agents, in particular to a temperature testing device used in conjunction with temporary blocking agents. Background technique [0002] Under high temperature conditions, optimize the crystallization conditions of poly-L-lactic acid and poly-D-lactic acid to improve crystallization efficiency, and promote the formation of crystal structure by adding additives to form a high-temperature temporary plugging agent system. [0003] Under medium temperature conditions, during the synthesis process of the temporary plugging agent, a chain extender of active groups is added to improve the temperature resistance. At the same time, nano-inorganic materials are added to improve the mixing process and further improve the mechanical strength and temperature resistance of the material. [0004] Under low temperature conditions, the structure of the polymer is changed, and branched chains are added to...

Claims

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Application Information

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IPC IPC(8): E21B47/07E21B33/12E21B33/134
CPCE21B47/07E21B33/12E21B33/134
Inventor 曾从良李小刚李裕民
Owner SOUTHWEST PETROLEUM UNIV
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