Rock friction experiment clamping device and leveling method
A clamping device and leveling technology, applied in the field of experimental research of unconventional oil and gas and geothermal development, can solve problems such as lack, and achieve the effect of small overall device size, strong mobility and simple operation
Active Publication Date: 2018-09-04
CHINA UNIV OF PETROLEUM (BEIJING)
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, there is still a lack of a rock friction test clamping device and an experimental method for small-scale surface-to-surface friction for this friction testing machine.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0047] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, those skilled in the art Modifications to various equivalent forms of the present invention fall within the scope defined by the appended claims of the present application.
[0048] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar ex...
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
Login to View More Abstract
The invention discloses a rock friction experiment clamping device and a leveling method. The device comprises a lower fixed seat, a leveling ball, a first locking sleeve, a liquid bath tank, an upperfixed seat and a second locking sleeve, wherein a spherical surface groove is formed in the top of the lower fixed seat; the leveling ball is arranged inside the spherical surface groove; the leveling ball is positioned through matching of a leveling washer and a leveling screw; a leveling ball inner cavity is formed in the upper part of the leveling ball; the first locking sleeve is arranged inside the leveling ball inner cavity; the first locking sleeve comprises a first conical surface sliding block for clamping a rock sample and a first rotating sleeve for sleeving the exterior of the first conical surface sliding block; first locking threads are formed on the outer side of the first rotating sleeve, and internal threads matched with the locking threads are formed inside the levelingball inner cavity; the liquid bath tank is fixed on the top surface of the leveling ball, the upper fixed seat is provided with an upper fixed seat inner cavity, and the upper fixed seat inner cavityis internally provided with internal threads; the second locking sleeve is arranged inside the upper fixed seat inner cavity. The device can be applied into straight scissor friction experiments in aliquid-bath environment, and the shearing of an underground rock stratum is truly simulated.
Description
technical field [0001] The invention relates to the experimental research field of unconventional oil and gas and geothermal development, in particular to a rock friction experiment clamping device and a leveling method. Background technique [0002] The development of unconventional oil and gas and geothermal poses new challenges. In the process of hydraulic fracturing, natural fractures are activated in the underground rock formation, and shear slip occurs, which makes the natural fractures self-supporting and has a certain opening, which improves the conductivity. Therefore, it is very important to study the mechanical conditions of direct shear of natural fractures under the action of fluids such as fracturing fluids. [0003] At present, most of the experimental equipment for the mechanical conditions of direct shear have the characteristics of large size and large scale. Among them, the shear surface is mostly 30*30 centimeters (cm), and the shear displacement is mor...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/02
CPCG01N19/02
Inventor 刘冬冬王剑波张晨刘桐源黄荣燕姚二冬
Owner CHINA UNIV OF PETROLEUM (BEIJING)