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

Experimental method for researching process of seismic fault fracture induced by water injection

An experimental method and fault technology, applied in seismology, seismic signal processing, geophysical measurement, etc., can solve the problems that the whole process of hydraulic diffusion cannot be captured, and the key mechanism of the interaction between rupture and water pressure cannot be further studied.

Active Publication Date: 2021-09-10
TIANJIN UNIV
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that the traditional water injection induced earthquake experiment method cannot capture the whole process of hydraulic diffusion (including water injection pressure and diffusion velocity), and cannot further study the key mechanism of the interaction between rupture and water pressure in the induced earthquake process, the present invention provides a method for studying water injection induced earthquakes. Experimental Method for Seismic Fault Rupture Process

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 method for researching process of seismic fault fracture induced by water injection
  • Experimental method for researching process of seismic fault fracture induced by water injection
  • Experimental method for researching process of seismic fault fracture induced by water injection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0038] An experimental method for studying the fault rupture process induced by water injection, the steps are as follows:

[0039] Step 1: Preliminary processing and fine processing of the fault model, such as figure 1 As shown, preliminary processing includes chamfering model and chamfer design, such as figure 2 As shown, fine processing includes multiple special structures including water injection holes, water pressure monitoring chambers, and rough structures on fault planes;

[0040] The transparent rock material polymethyl methacrylate is used to make a two-dimensional plane fault 45° oblique cut model with a specific structure. In order to facilitate biaxial loading, the four vertices are processed into right-angled triangle chamfers to comple...

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 discloses an experimental method for researching a water injection induced seismic fault fracture process, which comprises the following steps that a fault model is manufactured by using a transparent rock material, physical states of different fault planes are simulated by using a sand blasting means, key parameters of the fault fracture process are calculated by adopting high-frequency multi-field measurement (stress, strain and displacement), a water injection experiment is carried out on a fault plane under the biaxial loading system, the whole process of inducing an earthquake from inoculation to unstable fracture can be completely seen, and the mechanism of the process of inducing earthquake fracture by water injection and the characteristics of inducing the earthquake by water injection under different water injection conditions are further researched. Technical support is provided for exploring the change of the whole process of the earthquake induced by water injection, and possibility is provided for exploring earthquake fracture evolution induced by water injection.

Description

technical field [0001] The invention relates to the technical field of geophysical structure physics, in particular to an experimental method for studying the process of water injection-induced earthquake fault rupture. Background technique [0002] In recent years, almost most of the induced earthquakes are related to fluid injection in the process of energy extraction. Water injection-induced earthquakes have become a focus of current research and discussion (Ellsworth., 2013), and may be further developed with industrial and energy-related activities. And continue to deepen (Keranen and Weingarten, 2018). Examples include the 1967 Mw 5.5 earthquake in Denver, Colorado (Healy et al., 1968; Davis and Frohlich., 1993), and the 2011 Mw 5.7 earthquake in Prague, Oklahoma (Keranen et al., 2013; Van der Elst et al., 2013; McGarr., 2014; Sumy et al., 2014) and the 2017 Mw 5.5 earthquake in Pohang, South Korea (Kim et al., 2018; Grigoli et al., 2018). [0003] Water injection-in...

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): G01V1/133G01V1/30
CPCG01V1/133G01V1/306
Inventor 夏开文王璞徐冉张康华徐颖
Owner TIANJIN UNIV
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