Soluble downhole tool dissolution test device and using method thereof

A technology for test devices and downhole tools, which is used in measurement devices, instruments, scientific instruments, etc., and can solve the problem of large differences between test conditions and actual working conditions of tools, deviation of test results, and inability to simulate the dissolution state of soluble tools well, etc. question

Pending Publication Date: 2020-08-28
PETROCHINA CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For soluble downhole tools, dissolvability is the most critical technical index. At present, the industry mainly uses a constant temperature water bath to test the dissolution performance of tools, which cannot well simulate the dissolution of soluble tools in the wellbore size and the flow state of the dissolution medium. state, the test conditions and the actual working conditions of the tool are quite different, which will lead to a large deviation of the test results

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Soluble downhole tool dissolution test device and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like figure 1 As shown, the dissolving test device for soluble downhole tools of the present invention includes an automatic temperature controller 1, an insulation cylinder 2, insulation cotton 3, a water pump outlet pipe 4, a water pump inlet pipe 8, a metal bellows 5, a pipeline pump 6, and a double-ended thread Short-circuit 7, base 9, temperature measuring tube 10, self-limiting temperature heating belt 11, tool tray 12 and plug 13 for outlet of dissolved matter.

[0033] The thermal insulation cylinder 2 is arranged on the base 9, the outer wall of the thermal insulation cylinder 2 is provided with a temperature control assembly, and the interior of the thermal insulation cylinder 2 is provided with a tool tray 12 for placing the tool 14 to be tested;

[0034] The side wall of the heat preservation cylinder 2 is provided with a water pump outlet pipe 4 and a water pump inlet pipe 8 communicating with its inner cavity. The water pump inlet pipe 8 is connected to on...

Embodiment 2

[0054] In this embodiment, the structure of the present invention is described in detail with reference to specific parameters. In order to carry out the dissolving performance test of oil field soluble downhole tools and components thereof, the present invention provides a method such as figure 1 The shown soluble downhole tool dissolution test device can meet the requirements of 5 1 / 2 "Required for dissolution test of soluble bridge plug and soluble ball seat. Including automatic thermostat 1, insulation cylinder 2, insulation cotton 3, water pump outlet pipe 4, water pump inlet pipe 8, metal bellows 5, pipeline pump 6, double The head thread is shorted 7, the base 9, the temperature measuring tube 10, the self-limiting heating belt 11, the tool tray 12, the dissolved substance outlet plug 13, and the tool to be tested 14.

[0055] The automatic temperature controller 1 is composed of a temperature control panel and a waterproof temperature measuring probe. The sensing e...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a soluble downhole tool dissolution test device and a using method thereof. The device comprises a heat preservation cylinder, a metal corrugated pipe, a pipeline pump and a dissolved matter outlet screwed plug. The heat preservation cylinder is arranged on a base, a temperature control assembly is arranged on the outer wall of the heat preservation cylinder, and a tool tray used for containing tools to be tested is arranged in the heat preservation cylinder. A water pump outlet pipe and a water pump inlet pipe which are communicated with an inner cavity of the heat preservation cylinder are arranged on the side wall of the heat preservation cylinder, the water pump inlet pipe is connected with one end of the pipeline pump, the other end of the pipeline pump is connected with one end of the metal corrugated pipe through a double-thread pup joint, and the other end of the metal corrugated pipe is connected with the water pump outlet pipe. The device can simulatethe constant temperature, fluid circulation and wellbore environment required by dissolution of the soluble downhole tool. Parameters such as dissolving time, a dissolving medium and a dissolving temperature of the tool can be obtained through a tool dissolving performance test, and test data are provided for practical application of the tool.

Description

technical field [0001] The invention relates to the technical field of oilfield drilling and production tools, in particular to a dissolving test device for a soluble downhole tool and a method for using the same, and is mainly suitable for dissolving performance tests of oilfield soluble downhole tools and parts thereof. Background technique [0002] Soluble downhole tools are a new technology newly developed in oilfields in recent years. Because they can quickly dissolve or degrade by themselves after completing operations, greatly simplifying or even reducing post-operation procedures, they have been rapidly applied in oilfields on a large scale. Soluble downhole tools mainly include soluble fracturing balls, soluble bridge plugs, soluble casing ball seats, etc. For soluble downhole tools, dissolvability is the most critical technical index. At present, the industry mainly uses a constant temperature water bath to test the dissolubility of tools, which cannot well simulat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/00
Inventor 任国富赵振峰王治国郭思文赵敏琦薛晓伟赵粉霞冯长青刘忠能蒙鑫
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap