CN105136362A - Measuring device and method based on rock wave velocity anisotropy determined ground stress direction - Google Patents
Measuring device and method based on rock wave velocity anisotropy determined ground stress direction Download PDFInfo
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- CN105136362A CN105136362A CN201510620941.XA CN201510620941A CN105136362A CN 105136362 A CN105136362 A CN 105136362A CN 201510620941 A CN201510620941 A CN 201510620941A CN 105136362 A CN105136362 A CN 105136362A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0256—Triaxial, i.e. the forces being applied along three normal axes of the specimen
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0658—Indicating or recording means; Sensing means using acoustic or ultrasonic detectors
Abstract
The invention relates to a measuring device and a method based on rock wave velocity anisotropy determined ground stress direction. The device comprises a pedestal, a support column, a top plate, a rotation platform, a synchronous rotation platform, a pressure rod, a sound wave device and multiple hand wheels. By rotating the hand wheels, the rotation platform can be controlled to drive the rock center to rotate for 360 DEG and the sound wave device to move up and down, and control the size of imposed pressure of the sound wave device and the rock center, thereby precisely measuring sound wave data of the rock center in different directions and in different heights. Different radian of contact plates can be changed on the sound wave device, so the measuring device is applicable for measuring different sizes of rock centers, and application scope of the measuring device is extended. The measuring device is proper in structure and simple to operate, and precision based on the rock wave velocity anisotropy determined ground stress direction is increased.
Description
Technical field
The present invention relates to a kind of rock mechanics experiment device and method, particularly a kind of based on the Rock Velocity anisotropy measurement mechanism of stress direction and method definitely.
Background technology
The great number of issues of oil-gas exploration and development is relevant with terrestrial stress, and as oil-gas migration, when shaking out in the wellbore stability in drilling process, oil recovery process, waterflooding, well pattern is arranged and Salt layer damages problem.Wherein, in measurement terrestrial stress process, the determination of stress direction is most important.General conventional method is: in the theoretical foundation of differential strain analysis method, based on archeo magnetism core orientation technology, by Rock Velocity anisotropic elastic solid feature, finally stress direction definitely.
At present, measure the anisotropic device of Rock Velocity and there is a lot of problem, operate easy not, each measurement of bearing of rock core needs to reach by continuous stripping assembly the object rotating rock core.Meanwhile, the tightness degree of the Contact of sonic sensor and rock core affects the velocity of propagation of sound wave in rock, and the instability that operating process peripheral applies pressure size tests causing the velocity of wave difference recorded, thus forms larger operate miss.Such as, application number is experimental provision and the method for a kind of right cylinder rock core terrestrial stress size test of the patent of invention announcement of 201510288082.9, need dismantle rotation rock core, and can only be applied to the rock core of specific dimensions; Application number is the full-hole core Wave Velocity Anisotropy test unit of the utility model patent announcement of 201520036239.4, accurately can not control the stress intensity between sonic sensor and rock core and two sonic sensor relevant positions.
Summary of the invention
Object of the present invention is exactly in view of the foregoing defects the prior art has, and provide a kind of based on the Rock Velocity anisotropy measurement mechanism of stress direction and method definitely, it is rational in infrastructure, easy and simple to handle, degree of accuracy is high.
A kind of measurement mechanism based on Rock Velocity anisotropy stress direction definitely that the present invention mentions, its technical scheme is: comprise base (46), pillar I (2), pillar II (11), top board (10), universal stage (19), synchronous rotary platform (12), press rods (8), acoustic emission apparatus (3), acoustic receiver device (14), described universal stage (19) is arranged on base (46) central authorities, can be used for fixing rock core (13) and drives it to rotate; Described top board (10) is separately fixed at the top of pillar I (2) and pillar II (11) by nut I (1) and nut II (9), can be used for abutment pressure bar (8); Rock core (13) is fixed between universal stage (19) and synchronous rotary platform (12) by press rods (8); Handwheel V (18) is arranged on base (46), for controlling universal stage (19) and driving rock core (13) to realize 360 degree of rotations; Described acoustic emission apparatus (3) is arranged on pillar I (2), for launching acoustic signals; Described acoustic receiver device (14) is arranged on support II (2), for receiving acoustic signals; Described handwheel II (6) is arranged on acoustic emission apparatus (3), moves up and down for controlling acoustic emission apparatus (3); Described handwheel I (5) is arranged on acoustic emission apparatus (3), applies pressure for giving acoustic emission apparatus (3) and rock core (13); Described handwheel III (15) is arranged on acoustic receiver device (14), moves up and down for controlling acoustic receiver device (3); Described handwheel IV (30) is arranged on acoustic receiver device (14), applies pressure for giving acoustic receiver device (14) and rock core (13); Described sonic sensor I (3) is connected with sonic test instrument (43) by data line I (40), shows sonic data by computing machine (45); Described sonic sensor II (14) is connected with sonic test instrument (43) by data line II (39), shows sonic data by computing machine (45); Described load transducer I (7) is connected with load test instrument (44) by data line III (41), shows stress intensity by computing machine (45); Described load transducer II (17) is connected with load test instrument (44) by data line IV (42), shows stress intensity by computing machine (45).
Above-mentioned pillar I (2) and pillar II (11) are marked with rule, and handwheel II (6) and handwheel III (15) can distinguish the height of accurate adjustment acoustic emission apparatus (3) and sound wave receiving device (14).
Above-mentioned universal stage (19) and base (46) are marked with index dial (17), and handwheel (18) can drive rock core (13) angle that rotates by accurate adjustment universal stage (19).
Above-mentioned handwheel III (15) and spring I (21) apply pressure for giving acoustic receiver device (3) and rock core (13), and are connected with load test instrument (44) by data line IV (42), show stress intensity by computing machine (45).
Above-mentioned acoustic receiver device (14) changes the contact plate (25) of different radian by screw I (24), screw III (26), screw II (37).
Above-mentioned sonic sensor (16) is contacted with contact plate (25) by spring II (28).
The using method based on the Rock Velocity anisotropy measurement mechanism of stress direction definitely that the present invention mentions, comprises the following steps:
(1), prepare rock core (13), along the upper markings of rock core (13) axis direction mark, be designated as 0 degree;
(2), acoustic emission apparatus (3), acoustic receiver device (14) are arranged on pillar I (2) and pillar II (11) respectively;
(3), top board (10) is arranged on pillar I (2), pillar II (11), and fixes with nut I, nut II;
(4), by rock core (13) be placed between universal stage (19) and synchronous rotary platform (12), make the upper 90 degree of directions of markings and index dial (32) corresponding, rock core (13) fixed by rotational pressure bar (8);
(5), rotation hand wheel (5) and handwheel IV (30), regulate acoustic emission apparatus (3), acoustic receiver device (14) at sustained height respectively;
(6), rotation hand wheel II (6) and handwheel III (15), apply pressure to respectively acoustic emission apparatus (3), acoustic receiver device (14), and observe the pressure size shown by computing machine (45), ensure that pressure at both sides is equal;
(7), sonic test instrument (43) is opened, record current measurement data;
(8), rotation hand wheel (18), control rock core (13) realize 360 degree of rotations, record the measurement data that each anglec of rotation is corresponding;
(9), by measurement data, draw acoustic velocity with rock core anglec of rotation change curve, obtain the angle of minimal wave speed direction and markings, be i.e. the angle of maximally stress direction and markings; If rock core is non-directional rock core, the stress direction now measured is the direction of the relative rock core of terrestrial stress, in order to determine the stress direction primitively of subsurface rock, need carry out palaeo-magnetism orientation to rock core.
The invention has the beneficial effects as follows:
(1), rotation hand wheel can control universal stage and drive the rotation of 360 degree, rock core, thus accurately measure the sonic data in rock core all directions;
(2), rotation hand wheel controls acoustic wave device and moves up and down, thus accurately measures the sonic data on rock core differing heights;
(3), rotation hand wheel controls the pressure size of acoustic wave device and rock core, avoids pressure and do not fix the measuring error caused;
(4), the replaceable different radian contact plate of acoustic wave device, be applicable to the measurement of different size size rock core, expand the scope of application of measurement mechanism;
(5), by spring calibrate AE sensor is contacted with contact plate, both ensure that the good contact of sonic sensor and contact plate, guarantee that again sonic sensor can not excessive pressurized and damaging.
Accompanying drawing explanation
Fig. 1 is measurement mechanism structural representation of the present invention;
Fig. 2 is measurement mechanism base vertical view of the present invention;
Fig. 3 is measurement mechanism top board vertical view of the present invention;
Fig. 4 is measurement acoustic receiver device horizontal sectional drawing of the present invention;
Fig. 5 is measurement acoustic receiver device left view of the present invention;
Fig. 6 is that the acoustic velocity that records of the present invention is with rock core anglec of rotation change curve;
In upper figure, 1, nut I, 2, pillar I, 3, acoustic emission apparatus, 4, sonic sensor I, 5, handwheel I, 6, handwheel II, 7, load transducer I, 8, press rods, 9, nut II, 10, top board, 11, pillar II, 12, synchronous rotary platform, 13, rock core, 14, sound wave receiving device, 15 handwheels III, 16, sonic sensor II, 17, load transducer II, 18 handwheels V, 19, universal stage, 20, acoustic wave device exterior part, 21, spring I, 22, sealing ring, 23, acoustic wave device inner part, 24, screw I, 25, contact plate, 26, screw III, 27, pillar hole III, 28, spring II, 29, screw VI, 30, handwheel IV, 31, screw IV, 32, index dial, 33, pillar hole I, 34, screw thread VIII, 35, pillar hole II, 36, screw V, 37, screw II, 38, screw VII, 39, data line II, 40 data lines I, 41, data line III, 42, data line IV, 43, sonic test instrument, 44, load test instrument, 45, computing machine, 46, base.
Embodiment
By reference to the accompanying drawings, the invention will be further described:
As shown in Figure 1, a kind of measurement mechanism based on Rock Velocity anisotropy stress direction definitely provided of the present invention, comprising: base 46, pillar I 2, pillar II 11, top board 10, universal stage 19, synchronous rotary platform 12, press rods 8, acoustic emission apparatus 3, acoustic receiver device 14.
Above-mentioned universal stage 19 is arranged on base 46 central authorities, can be used for fixing rock core 13 and drives it to rotate; Described top board 10 is separately fixed at the correct position of pillar I 2 and pillar II 11 by nut I 1 and nut II 9, can be used for abutment pressure bar 8; Rock core 13 can be fixed between universal stage 19 and synchronous rotary platform 12 by press rods 8; Handwheel V 18 is arranged on base 46, for controlling universal stage 19 and driving rock core 13 to realize 360 degree of rotations; Described acoustic emission apparatus 3 is arranged on pillar I 2, for launching acoustic signals; Described acoustic receiver device 14 is arranged on support II 2, for receiving acoustic signals; Described handwheel II 6 is arranged on acoustic emission apparatus 3, moves up and down for controlling acoustic emission apparatus 3; Described handwheel I 5 is arranged on acoustic emission apparatus 3, applies pressure for giving acoustic emission apparatus 3 and rock core 13; Described handwheel III 15 is arranged on acoustic receiver device 14, moves up and down for controlling acoustic receiver device 3; Described handwheel IV 30 is arranged on acoustic receiver device 14, applies pressure for giving acoustic receiver device 14 and rock core 13; Described sonic sensor I 3 is connected with sonic test instrument 43 by data line I 40, shows sonic data by computing machine 45; Described sonic sensor II 14 is connected with sonic test instrument 43 by data line II 39, shows sonic data by computing machine 45; Described load transducer I 7 is connected with load test instrument 44 by data line III 41, shows stress intensity by computing machine 45; Described load transducer II 17 is connected with load test instrument 44 by data line IV 42, shows stress intensity by computing machine 45.
Above-mentioned pillar I 2 and pillar II 11 are marked with rule, handwheel II 6 and handwheel III 15 can distinguish the height of accurate adjustment acoustic emission apparatus 3 and sound wave receiving device 14, ensure that calibrate AE sensor I 5 and sonic sensor II 16 are at sustained height, thus accurately measure the sonic data on rock core 13 differing heights.
As shown in Figure 2, base device of the present invention, comprise: base 46, pillar I 2, pillar II 11, handwheel V 18, universal stage 19, index dial 32, described universal stage 19 and base 46 are all marked with index dial 17, handwheel 18 can accurate adjustment universal stage 19 angle that drives rock core 13 to rotate, thus accurately measures the sonic data in rock core 13 all directions.
As shown in Figure 3, ceiling device of the present invention, comprising: top board 10, pillar hole I 33, screw thread VIII 34, pillar hole II 35, and described pillar I 2 and pillar II 11 are each passed through pillar hole I 33 and pillar hole II 35, and is fixed by nut I 1 and nut II 9; Described press rods 8 is arranged on top board by nut VIII 34, is fixed between universal stage 19 and synchronous rotary platform 12 by rock core 13.
As shown in Figure 4,5, acoustic receiver device 14 of the present invention, comprises sonic sensor II 16, load transducer II 17, acoustic wave device exterior part 20, spring I 21, acoustic wave device inner part 23, sealing ring 22, contact plate 25, spring II 28, handwheel III 15, handwheel IV 30.Acoustic emission apparatus 3 of the present invention is the same with sound wave receiving device 14 inner structure.
Described handwheel III 15 and spring I 21 apply pressure for giving acoustic receiver device 3 and rock core 13, and be connected with load test instrument 44 by data line IV 42, stress intensity is shown by computing machine 45, ensure that the stability of the intermolecular forces of acoustic receiver device 14 and rock core 13, avoid the measuring error that pressure transient causes.
Described acoustic receiver device 14 by the contact plate 25 of screw I 24, screw III 26, the different radian of screw II 37 replacing, thus meets the requirement of the rock core 13 of different size, expands the scope of application of measurement mechanism.
Described sonic sensor 16 is contacted with contact plate 25 by spring II 28, both ensure that the good contact of sonic sensor 16 and contact plate 25, guarantees that again sonic sensor 16 can not excessive pressurized and damaging.
As shown in Figure 6, the acoustic velocity that the present invention records is with rock core anglec of rotation change curve, and its horizontal ordinate is and markings angle, and ordinate is the angle of acoustic velocity, minimal wave speed direction and markings, i.e. the angle of maximally stress direction and markings.Its measuring process is: before measurement, along the upper markings of rock core 13 axis direction mark, is designated as 0 degree.Rock core 13 is rotated by 360 degree, sonic sensor I 3 and sonic sensor II 14 is utilized to measure the rock core sonic data of each orientation differing heights, be connected sonic test instrument 43 by data line I 40 with data line II 39, show the measurement data of acoustic velocity with core test angle at computing machine 45.Pass through measurement data, draw acoustic velocity with rock core anglec of rotation change curve, if rock core is non-directional rock core, the stress direction now measured is the direction of the relative rock core of terrestrial stress, in order to determine the stress direction primitively of subsurface rock, palaeo-magnetism orientation need be carried out to rock core.
The using method based on the Rock Velocity anisotropy measurement mechanism of stress direction definitely that the present invention mentions, comprises the following steps:
(1), prepare rock core (13), along the upper markings of rock core (13) axis direction mark, be designated as 0 degree;
(2), acoustic emission apparatus (3), acoustic receiver device (14) are arranged on pillar I (2) and pillar II (11) respectively;
(3), top board (10) is arranged on pillar I (2), pillar II (11), and fixes with nut I, nut II;
(4), by rock core (13) be placed between universal stage (19) and synchronous rotary platform (12), make the upper 90 degree of directions of markings and index dial (32) corresponding, rock core (13) fixed by rotational pressure bar (8);
(5), rotation hand wheel (5) and handwheel IV (30), regulate acoustic emission apparatus (3), acoustic receiver device (14) at sustained height respectively;
(6), rotation hand wheel II (6) and handwheel III (15), apply pressure to respectively acoustic emission apparatus (3), acoustic receiver device (14), and observe the pressure size shown by computing machine (45), ensure that pressure at both sides is equal;
(7), sonic test instrument (43) is opened, record current measurement data;
(8), rotation hand wheel (18), control rock core (13) realize 360 degree of rotations, record the measurement data that each anglec of rotation is corresponding;
(9), by measurement data, draw acoustic velocity with rock core anglec of rotation change curve, obtain the angle of minimal wave speed direction and markings, be i.e. the angle of maximally stress direction and markings; If rock core is non-directional rock core, the stress direction now measured is the direction of the relative rock core of terrestrial stress, in order to determine the stress direction primitively of subsurface rock, need carry out palaeo-magnetism orientation to rock core.
The above, be only part preferred embodiment of the present invention, any those of ordinary skill in the art all may utilize the technical scheme correct of above-mentioned elaboration or are revised as equivalent technical scheme.Therefore, any simple modification of carrying out according to technical scheme of the present invention or substitute equivalents, belong to the scope of protection of present invention to the greatest extent.
Claims (7)
1. the measurement mechanism based on Rock Velocity anisotropy stress direction definitely, it is characterized in that: comprise base (46), pillar I (2), pillar II (11), top board (10), universal stage (19), synchronous rotary platform (12), press rods (8), acoustic emission apparatus (3), acoustic receiver device (14), described universal stage (19) is arranged on base (46) central authorities, can be used for fixing rock core (13) and drives it to rotate; Described top board (10) is separately fixed at the top of pillar I (2) and pillar II (11) by nut I (1) and nut II (9), can be used for abutment pressure bar (8); Rock core (13) is fixed between universal stage (19) and synchronous rotary platform (12) by press rods (8); Handwheel V (18) is arranged on base (46), for controlling universal stage (19) and driving rock core (13) to realize 360 degree of rotations; Described acoustic emission apparatus (3) is arranged on pillar I (2), for launching acoustic signals; Described acoustic receiver device (14) is arranged on support II (2), for receiving acoustic signals; Described handwheel II (6) is arranged on acoustic emission apparatus (3), moves up and down for controlling acoustic emission apparatus (3); Described handwheel I (5) is arranged on acoustic emission apparatus (3), applies pressure for giving acoustic emission apparatus (3) and rock core (13); Described handwheel III (15) is arranged on acoustic receiver device (14), moves up and down for controlling acoustic receiver device (3); Described handwheel IV (30) is arranged on acoustic receiver device (14), applies pressure for giving acoustic receiver device (14) and rock core (13); Described sonic sensor I (3) is connected with sonic test instrument (43) by data line I (40), shows sonic data by computing machine (45); Described sonic sensor II (14) is connected with sonic test instrument (43) by data line II (39), shows sonic data by computing machine (45); Described load transducer I (7) is connected with load test instrument (44) by data line III (41), shows stress intensity by computing machine (45); Described load transducer II (17) is connected with load test instrument (44) by data line IV (42), shows stress intensity by computing machine (45).
2. the measurement mechanism based on Rock Velocity anisotropy stress direction definitely according to claim 1, it is characterized in that: described pillar I (2) and pillar II (11) are marked with rule, handwheel II (6) and handwheel III (15) can distinguish the height of accurate adjustment acoustic emission apparatus (3) and sound wave receiving device (14).
3. the measurement mechanism based on Rock Velocity anisotropy stress direction definitely according to claim 1, it is characterized in that: described universal stage (19) and base (46) are marked with index dial (17), handwheel (18) can drive rock core (13) angle that rotates by accurate adjustment universal stage (19).
4. the measurement mechanism based on Rock Velocity anisotropy stress direction definitely according to claim 1, it is characterized in that: described handwheel III (15) and spring I (21) are for applying pressure to acoustic receiver device (3) and rock core (13), and be connected with load test instrument (44) by data line IV (42), show stress intensity by computing machine (45).
5. the measurement mechanism based on Rock Velocity anisotropy stress direction definitely according to claim 1, is characterized in that: described acoustic receiver device (14) changes the contact plate (25) of different radian by screw I (24), screw III (26), screw II (37).
6. the measurement mechanism based on Rock Velocity anisotropy stress direction definitely according to claim 1, is characterized in that: described sonic sensor (16) is contacted with contact plate (25) by spring II (28).
7. the using method based on the Rock Velocity anisotropy measurement mechanism of stress direction definitely according to any one of claim 1-6, is characterized in that: comprise the following steps:
(1), prepare rock core (13), along the upper markings of rock core (13) axis direction mark, be designated as 0 degree;
(2), acoustic emission apparatus (3), acoustic receiver device (14) are arranged on pillar I (2) and pillar II (11) respectively;
(3), top board (10) is arranged on pillar I (2), pillar II (11), and fixes with nut I, nut II;
(4), by rock core (13) be placed between universal stage (19) and synchronous rotary platform (12), make the upper 90 degree of directions of markings and index dial (32) corresponding, rock core (13) fixed by rotational pressure bar (8);
(5), rotation hand wheel (5) and handwheel IV (30), regulate acoustic emission apparatus (3), acoustic receiver device (14) at sustained height respectively;
(6), rotation hand wheel II (6) and handwheel III (15), apply pressure to respectively acoustic emission apparatus (3), acoustic receiver device (14), and observe the pressure size shown by computing machine (45), ensure that pressure at both sides is equal;
(7), sonic test instrument (43) is opened, record current measurement data;
(8), rotation hand wheel (18), control rock core (13) realize 360 degree of rotations, record the measurement data that each anglec of rotation is corresponding;
(9), by measurement data, draw acoustic velocity with rock core anglec of rotation change curve, obtain the angle of minimal wave speed direction and markings, be i.e. the angle of maximally stress direction and markings; If rock core is non-directional rock core, the stress direction now measured is the direction of the relative rock core of terrestrial stress, in order to determine the stress direction primitively of subsurface rock, need carry out palaeo-magnetism orientation to rock core.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610655821.8A CN106323761A (en) | 2015-09-25 | 2015-09-25 | Device for testing rock fragility |
| CN201510620941.XA CN105136362B (en) | 2015-09-25 | 2015-09-25 | A kind of measurement apparatus based on Rock Velocity anisotropy stress direction definitely and method |
| CN201610655794.4A CN106323760A (en) | 2015-09-25 | 2015-09-25 | Method for testing rock fragility |
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| CN201510620941.XA CN105136362B (en) | 2015-09-25 | 2015-09-25 | A kind of measurement apparatus based on Rock Velocity anisotropy stress direction definitely and method |
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| CN201610655794.4A Division CN106323760A (en) | 2015-09-25 | 2015-09-25 | Method for testing rock fragility |
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| CN201510620941.XA Expired - Fee Related CN105136362B (en) | 2015-09-25 | 2015-09-25 | A kind of measurement apparatus based on Rock Velocity anisotropy stress direction definitely and method |
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| CN104359817A (en) * | 2014-10-16 | 2015-02-18 | 北京科技大学 | Shale core crack extension analyzing device and method |
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| CN110794038A (en) * | 2019-10-26 | 2020-02-14 | 西南石油大学 | Rock ventricle inner orientation method based on acoustic wave velocity anisotropy |
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| CN111198399A (en) * | 2020-02-21 | 2020-05-26 | 中国石油大学(华东) | Sediment compaction sound velocity anisotropy measuring device |
| CN112098297A (en) * | 2020-09-14 | 2020-12-18 | 中国石油大学(华东) | A multiform rock core clamping device for sound wave is measured |
| CN114577380A (en) * | 2020-11-30 | 2022-06-03 | 中国石油天然气股份有限公司 | Measuring device for determining the direction of a ground stress and method for determining the direction of a ground stress |
| CN114577380B (en) * | 2020-11-30 | 2024-04-30 | 中国石油天然气股份有限公司 | Measuring device for determining a direction of ground stress and method for determining a direction of ground stress |
| CN112903740A (en) * | 2021-01-22 | 2021-06-04 | 中国石油大学(华东) | Device and method for measuring thermal expansion coefficient of rock under confining pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105136362B (en) | 2016-09-07 |
| CN106323760A (en) | 2017-01-11 |
| CN106323761A (en) | 2017-01-11 |
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