Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Experimental device and experimental method for testing mechanical properties of hydrate reservoir

A technology of mechanical properties and experimental equipment, which is applied in the direction of measuring equipment, strength characteristics, and the use of stable shear force to test the strength of materials, etc. It can solve problems such as wellbore instability, safety accidents, increased difficulty and uncertainty in drilling, etc. , to achieve the effect of improving the reliability

Pending Publication Date: 2022-03-18
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of drilling, due to the invasion and erosion of drilling fluid, reservoir hydrates are prone to decompose, which in turn changes the mechanical properties of hydrate reservoirs, induces well wall instability, lost circulation, well kicks, and even blowouts, resulting in security incident
[0004] At present, the impact of drilling fluid invasion and erosion on the mechanical properties of hydrate reservoirs is still unclear, and there are many difficulties in the study of this effect, which adds more difficulty and uncertainty to drilling

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
  • Experimental device and experimental method for testing mechanical properties of hydrate reservoir
  • Experimental device and experimental method for testing mechanical properties of hydrate reservoir
  • Experimental device and experimental method for testing mechanical properties of hydrate reservoir

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] The invention provides an experimental device for testing the mechanical properties of hydrate reservoirs, such as Figure 1 ~ Figure 3 As shown, the experimental device includes: a reactor 2, a core shear mechanism 1 and a core clamping mechanism 5; the reactor 2 is provided with a drilling fluid inlet 202 and a drilling fluid outlet 215; the core shear mechanism 1 includes a shear drive mechanism 100 And shearing tool 1180, shearing tool 1180 is arranged in reactor 2, and shearing drive mechanism 100 is connected with shearing tool 1180, and shearing drive mechanism 100 can drive shearing tool 1180 to move, to be arranged in reactor 2 The rock core specimen 120 is sheared; the rock core clamping mechanism 5 includes a clamping drive mechanism 500 and a support mechanism 506, the clamping drive mechanism 500 is connected with the support mechanism 506, and the clamping drive mechanism 500 can drive the support mechanism 506 to move to the rock core The sidewalls of the...

Embodiment 2

[0109] The present invention provides an experimental method for testing the mechanical properties of hydrate reservoirs, using the above-mentioned experimental device for testing the mechanical properties of hydrate reservoirs, such as Figure 11 As shown, the experimental method includes: step S10, setting the core test piece 120 in the reactor 2; step S21, clamping the driving mechanism 500 to drive the support mechanism 506 to move away from the core test piece 120; step S22, passing the drilling fluid inlet 202 to feed drilling fluid into the reaction kettle 2, and the drilling fluid is discharged through the drilling fluid outlet 215; step S30, the clamping drive mechanism 500 drives the support mechanism 506 to move to the side wall of the core specimen 120, and the shearing drive mechanism 100 The shearing tool 1180 is driven to move to shear the core sample 120 .

[0110] The mechanical properties of the rock core sample 120 can be understood by shearing the rock core...

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

No PUM Login to View More

Abstract

The invention provides an experimental device and an experimental method for testing the mechanical properties of a hydrate reservoir, and the experimental device for testing the mechanical properties of the hydrate reservoir comprises a reaction kettle which is provided with a drilling fluid inlet and a drilling fluid outlet; the rock core shearing mechanism comprises a shearing driving mechanism and a shearing tool, the shearing tool is arranged in the reaction kettle, the shearing driving mechanism is connected with the shearing tool, and the shearing driving mechanism can drive the shearing tool to move so as to shear a rock core test piece arranged in the reaction kettle; the rock core clamping mechanism comprises a clamping driving mechanism and a supporting mechanism, the clamping driving mechanism is connected with the supporting mechanism, and the clamping driving mechanism can drive the supporting mechanism to move to abut against the side wall of the rock core test piece so as to prevent the rock core test piece from moving when the rock core test piece is sheared by the shearing tool. By adopting the device and the method, the influence of drilling fluid invasion and erosion on the mechanical properties of the hydrate reservoir can be conveniently researched.

Description

technical field [0001] The invention relates to the technical field of natural gas exploration and development, in particular to an experimental device and an experimental method for testing the mechanical properties of hydrate reservoirs. Background technique [0002] Natural gas hydrate is an ice-like crystalline compound formed by water molecules and hydrocarbon gas molecules under low temperature and high pressure conditions. It is also called "combustible ice" or "solid gas". It has the characteristics of high energy density, wide distribution, and large reserves. , is a new and alternative energy source with great potential. Gas hydrates are widely distributed in permafrost and ocean areas, and the stored natural gas reserves are relatively abundant. [0003] Exploration and development of gas hydrates requires drilling. In the process of drilling, due to the invasion and erosion of drilling fluid, reservoir hydrates are prone to decompose, which in turn changes the ...

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): G01N3/24G01N3/04G01N3/02
CPCG01N3/24G01N3/04G01N3/02G01N2203/0025
Inventor 王韧汪奇兵王建龙屈沅治程荣超王金堂刘天乐张志磊孙慧翠孙金声
Owner BC P INC CHINA NAT PETROLEUM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com