CN106289585A - A kind of Visco elastic strain surveys the measuring method of the test device of on-the-spot crustal stress - Google Patents

A kind of Visco elastic strain surveys the measuring method of the test device of on-the-spot crustal stress Download PDF

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Publication number
CN106289585A
CN106289585A CN201610559122.3A CN201610559122A CN106289585A CN 106289585 A CN106289585 A CN 106289585A CN 201610559122 A CN201610559122 A CN 201610559122A CN 106289585 A CN106289585 A CN 106289585A
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China
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rock
scanning
crustal stress
deformation
laser scanning
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CN201610559122.3A
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Chinese (zh)
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CN106289585B (en
Inventor
王京印
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China University of Petroleum Beijing CUPB
China University of Petroleum UPC East China
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China University of Petroleum Beijing CUPB
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Priority to CN201610559122.3A priority Critical patent/CN106289585B/en
Priority to CN201510256914.9A priority patent/CN105136347B/en
Publication of CN106289585A publication Critical patent/CN106289585A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/06Measuring force or stress, in general by measuring the permanent deformation of gauges, e.g. of compressed bodies
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/24Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infra-red, visible light, ultra-violet
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • G01B11/16Measuring arrangements characterised by the use of optical means for measuring the deformation in a solid, e.g. optical strain gauge
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0047Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to residual stresses
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04Analysing solids
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04Analysing solids
    • G01N29/11Analysing solids by measuring attenuation of acoustic waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G01N2011/006Determining flow properties indirectly by measuring other parameters of the system
    • G01N2011/0073Determining flow properties indirectly by measuring other parameters of the system acoustic properties
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/023Solids
    • G01N2291/0232Glass, ceramics, concrete or stone
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/028Material parameters
    • G01N2291/02818Density, viscosity
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/028Material parameters
    • G01N2291/02827Elastic parameters, strength or force

Abstract

The present invention relates to a kind of anelastic strain survey on-the-spot crustal stress measurement apparatus and method of testing, comprise the following steps: cylindrical standard sample is positioned in rock core grasping system (C) by (1), lay, install experimental apparatus and the parameter of scanning multistage speed loading system (A), data collecting system (D) and Computer reprocessing system (E) is configured;(2) coordinate scanning multistage speed loading system (A) to rock core short time distortion measurement by laser scanning system (B), obtained the deformation of whole boring cross-sectional profiles by method of least square numerical fitting, and calculate minimum and maximum horizontal principal stress according to Elasticity formula.The invention has the beneficial effects as follows: can measure field strain crustal stress, simple to operate, reliable results, and can intuitively visualize display result, the result of the test of the present invention can be crustal stress measure the experimental technique support providing important.

Description

A kind of Visco elastic strain surveys the measuring method of the test device of on-the-spot crustal stress
Technical field
The present invention relates to a kind of petroleum engineering technology, survey the survey of on-the-spot crustal stress particularly to a kind of Visco elastic strain The measuring method of electricity testing device.
Background technology
Well in the data about In-situ stress, such as drilling process is had increasing need in petroleum engineering Stable problem;Formation fracture pressure prediction;Fracturing engineering designs;Formation fracture problem in high pressure water injection;The slip of tomography and Resurrection problem;Carry outside casing pipe to calculate and resist and squeeze Life Calculation problem etc..Existing ask all of crustal stress size and direction In method, having certain limitation, therefore cut both ways, the general very difficult direction simultaneously accurately to obtain crustal stress is with big Little.
Summary of the invention
The purpose of the present invention is aiming at the drawbacks described above that prior art exists, it is provided that a kind of Visco elastic strain surveys on-the-spot ground The measuring method of the test device of stress, is mainly used for measuring the horizontal stress state understanding underground point, including principal stress Size and direction.
A kind of Visco elastic strain that the present invention mentions surveys the measuring method of the test device of on-the-spot crustal stress, its technical scheme It is: comprise the following steps:
(1) in cylindrical standard sample is positioned over rock core grasping system (C), lay, install experimental apparatus many to scanning The parameter of step velocity loading system (A), data collecting system (D) and Computer reprocessing system (E) is configured;Wherein rock core The laser scanning system (B) that grasping system (C) top is cased with, it is achieved the DATA REASONING of rock appearance deformation;Scanning multistage speed Loading system (A) combining laser scanning system (B), it is achieved the periodicity that rock appearance gathers data measures;Data acquisition system System (D) depends on laser scanning system (B), it is achieved the collecting measurement data of rock appearance deformation collects, and transmits to computer After-treatment system (E) is stored;It is calculated rock in rock crustal stress process of the test by Computer reprocessing system (E) Deformation extent, draw out the mutual relation curve between rock deformation, time, viscoelasticity, and visualized display, calculate On-the-spot crustal stress;
(2) coordinate scanning multistage speed loading system (A) to rock core short time distortion measurement by laser scanning system (B), lead to Cross method of least square numerical fitting and obtain the deformation of whole boring cross-sectional profiles, and calculate maximum according to Elasticity formula And minimum horizontal principal stress.
The invention has the beneficial effects as follows: the result of the test of the measurement apparatus that Visco elastic strain of the present invention surveys on-the-spot crustal stress can Measure field strain crustal stress, simple to operate, reliable results, and can intuitively visualize display result;It addition, the test of the present invention Result can be that measuring of crustal stress provides important experimental technique support.
Accompanying drawing explanation
Accompanying drawing 1 is the overall structure schematic diagram of the present invention;
Accompanying drawing 2 is the dissection explanatory diagram of each parts of the present invention;
Accompanying drawing 3 is the scanning device runing rest modular construction schematic diagram of the present invention;
In upper figure: scanning multistage speed loading system A, laser scanning system B, rock core grasping system C, data collecting system D, meter Calculation machine after-treatment system E;Laser scanning runing rest 1, side casings 2, base 3, core holding unit 4, transmission arm 5, multistage speed Degree adapter 6, control transmission line 7, data line 8, outer casing upper cover 9, scanning runing rest draw-in groove 10, airborne laser range finder 11, Computer 12, cylinder 13, annulus 14, horizontal draw-in groove 15, lobe 16, sonic test system 17, axial displacement meter 18.
Detailed description of the invention
1-3 referring to the drawings, a kind of Visco elastic strain that the present invention mentions surveys the test device of on-the-spot crustal stress, including scanning Multistage speed loading system A, laser scanning system B, rock core grasping system C, data collecting system D, Computer reprocessing system E, is wherein cased with laser scanning system B above rock core grasping system C, it is achieved the DATA REASONING of rock appearance deformation;Scan multistage Speed loading system A combining laser scanning system B, it is achieved the periodicity that rock appearance gathers data measures;Data acquisition system System D depends on laser scanning system B, it is achieved the collecting measurement data of rock appearance deformation collects, and transmits to computer place Reason system E is stored;It is calculated the deformation journey of rock in rock crustal stress process of the test by Computer reprocessing system E Degree, draws out the mutual relation curve between rock deformation, time, viscoelasticity, and is visualized display, should calculate on-the-spotly Power.
Wherein, scanning multistage speed loading system A includes outer casing upper cover 9, multistage speed adapter 6, transmission arm 5, wherein, Outer casing upper cover 9 is fixed by side casings 2, and multistage speed adapter 6 and transmission arm 5 are fixed on outer casing upper cover 9, multistage speed Adapter 6 is connected with Computer reprocessing system E by the control transmission line 7 in data collecting system D.
It addition, laser scanning system B includes laser scanning runing rest 1, cylinder 13, annulus 14, two laser scanning rotations The bottom turning support 1 is fixed on annulus 14 and cylinder 13, is fixed together with base by annulus 14 and cylinder 13, multiple sharp Ligh-ranging device 11 the most equidistantly arranges, and the top of described laser scanning runing rest 1 is connected with transmission arm 5, uses Scan runing rest in stabilized lasers, and make it control to rotate by transmission arm 5;In airborne laser range finder 11 and data collecting system D Data line 8 be connected, the data of airborne laser range finder are transferred to Computer reprocessing system E.
It addition, rock core grasping system C includes base 3, core holding unit 4, the upside of base 3 is provided with lobe 16, passes through Longitudinal draw-in groove 10 and horizontal draw-in groove 15 are in mating connection with laser scanning runing rest 1, and core holding unit 4 is fixed on base 3 On, described core holding unit 4 wraps up gum elastic near the position of core sample.
Data collecting system D includes data line 8 and controls transmission line 7, and by data line 8 and control transmission Line 7 is connected respectively to Computer reprocessing system E, computer by data exchange mouth the data of timing acquiring are stored, Display, and based on data process visualization procedure be calculated the external deformation of rock in process of the test, draw out rock deformation, Mutual relation curve between time, stress and strain parameter, and visualized display.
Referring to the drawings 2, in the susceptor surface in the outside that longitudinal draw-in groove 10 is arranged on lobe 16, horizontal draw-in groove 15 is arranged on The top of lobe 16, coordinates fixing by longitudinal draw-in groove 10 with cylinder 13, coordinates fixing with annulus 14 by horizontal draw-in groove, from And laser scanning runing rest 1 is fixed together with base 3;Above-mentioned airborne laser range finder 11 is provided with five airborne laser range finders 11.Wherein, two laser scanning runing rests 1, one group of strain value takes the data of the two half period interscan;Strain value takes 5 Individual airborne laser range finder 11 sum average, is used for guaranteeing sample measurement accuracy;Sample used is cylindrical sample, a diameter of 50mm, height can be adjusted between 90-110mm, and sample loads in core sample grasping system C;
A kind of Visco elastic strain that the present invention mentions surveys the measuring method of the test device of on-the-spot crustal stress, comprises the following steps:
(1) cylindrical standard sample is positioned in rock core grasping system C, lay, install experimental apparatus and to scanning multistage The parameter of speed loading system A, data collecting system D and Computer reprocessing system E is configured;Wherein rock core grasping system The laser scanning system B being cased with above C, it is achieved the DATA REASONING of rock appearance deformation;Scanning multistage speed loading system A combines Laser scanning system B, it is achieved the periodicity that rock appearance gathers data measures;Data collecting system D depends on laser scanning System B, it is achieved the collecting measurement data of rock appearance deformation collects, and transmit to Computer reprocessing system E and stored;Logical Cross Computer reprocessing system E and be calculated the deformation extent of rock in rock crustal stress process of the test, draw out rock deformation, Mutual relation curve between time, viscoelasticity, and visualized display;
(2) by laser scanning system B coordinate scanning multistage speed loading system A to rock core short time distortion measurement, by Little square law numerical fitting obtains the deformation of whole boring cross-sectional profiles;
(3) obtain amplitude attenuation quotient in time by sonic test system (in figure 17) test, and then utilize following formula to calculate Rock viscosity
In formulaFor sonic wave amplitude attenuation quotient in time, obtained by acoustical testing system;For frequency of sound wave;E For elastic modulus of rock;For rock viscosity.
(4) utilize Kelvin's viscoelastic model that the viscoelastic data recorded in step 1 is analyzed, and obtained by following formula To concrete moduli.
(5) concrete moduli is utilized to calculate various places stress intensity and direction according to Hooke's law.

Claims (1)

1. Visco elastic strain surveys the measuring method testing device of on-the-spot crustal stress, it is characterized in that comprising the following steps:
(1) in cylindrical standard sample is positioned over rock core grasping system (C), lay, install experimental apparatus many to scanning The parameter of step velocity loading system (A), data collecting system (D) and Computer reprocessing system (E) is configured;Wherein rock core The laser scanning system (B) that grasping system (C) top is cased with, it is achieved the DATA REASONING of rock appearance deformation;Scanning multistage speed Loading system (A) combining laser scanning system (B), it is achieved the periodicity that rock appearance gathers data measures;Data acquisition system System (D) depends on laser scanning system (B), it is achieved the collecting measurement data of rock appearance deformation collects, and transmits to computer After-treatment system (E) is stored;It is calculated rock in rock crustal stress process of the test by Computer reprocessing system (E) Deformation extent, draw out the mutual relation curve between rock deformation, time, viscoelasticity, and visualized display, calculate On-the-spot crustal stress;
(2) coordinate scanning multistage speed loading system (A) to rock core short time distortion measurement by laser scanning system (B), lead to Cross method of least square numerical fitting and obtain the deformation of whole boring cross-sectional profiles, and calculate maximum according to Elasticity formula And minimum horizontal principal stress.
CN201610559122.3A 2015-05-19 2015-05-19 A kind of measurement method of the test device of the live crustal stress of Visco elastic strain survey Expired - Fee Related CN106289585B (en)

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CN106289585B (en) 2019-04-09
CN106289586A (en) 2017-01-04
CN106197798B (en) 2018-11-16
CN105136347A (en) 2015-12-09
CN106017745A (en) 2016-10-12
CN106092396A (en) 2016-11-09
CN106092396B (en) 2018-12-14
CN106197798A (en) 2016-12-07
CN106017745B (en) 2019-01-08
CN105136347B (en) 2016-08-24

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