CN210090562U

CN210090562U - Rock resistivity stress sensitivity tester

Info

Publication number: CN210090562U
Application number: CN201920899309.7U
Authority: CN
Inventors: 马立涛; 王铭伟; 潘新志; 游利军; 周龙刚; 李洋冰
Original assignee: Sichuan Xianran Petroleum Technology Co Ltd; Engineering Technology Branch of CNOOC Energy Technology and Services Ltd
Current assignee: Sichuan Xianran Petroleum Technology Co Ltd; Engineering Technology Branch of CNOOC Energy Technology and Services Ltd
Priority date: 2019-06-15
Filing date: 2019-06-15
Publication date: 2020-02-18
Anticipated expiration: 2029-06-15

Abstract

The utility model discloses a rock resistivity stress sensitivity tester, which comprises a mounting rack, wherein the bottom surface of the inner cavity of the mounting rack is provided with a balance, the top of the balance is provided with a collecting cup, the inner wall of the mounting rack is connected with a supporting plate, the top surface of the supporting plate is provided with a temperature controller and a resistivity meter, and the top surface of the mounting rack is provided with a confining pressure device; through angle adjusting device, not only make clamping device can incline into arbitrary angle, and make clamping device can fix under arbitrary inclination's state, ensure that the rock core can insert the rubber sleeve with the state of slope, conveniently insert the rubber sleeve with the tip of rock core, the rock core can slide into inside the rubber sleeve under the effect of self gravity simultaneously, need not be with the help of extra instrument, high durability and convenient operation, keep watch on through monitoring arrangement to left centre gripping post and centre gripping dynamics between with, make the left centre gripping post of experimenter ability accurate control to the centre gripping dynamics of rock core, can not make the too big fracture damage of rock core atress, the degree of accuracy of resistivity measured value has been increased.

Description

Rock resistivity stress sensitivity tester

Technical Field

The utility model relates to a rock resistivity stress sensitivity tester field, more specifically says, relates to a rock resistivity stress sensitivity tester.

Background

The rock resistivity is a resistance value when current vertically passes through a rock with unit sectional area and unit length, and is a parameter for representing the conductivity of the rock, and the numerical value of the resistance value is influenced by internal factors and external factors, wherein the internal factors comprise mineral components, particle shapes, structures and cements of the rock, the porosity, the fracture degree, the water content and the like of the rock; the external factors include the temperature and the bearing pressure of the rock, the power supply frequency during observation and the like, the rock resistivity value is always used as an important index for dividing an oil-water interface and evaluating the oil content and the oil content degree of a reservoir, the resistivity of the rock is usually measured by using a rock resistivity stress sensitivity tester,

the existing rock resistivity stress sensitivity tester comprises a mounting frame, a resistivity meter, a temperature controller, a holder, a balance, a collecting cup, an air pressure tank, a confining pressure device, a metering pump, a data processing device and the like, wherein the holder is horizontally fixed at the top of the mounting frame, when the tester is used, a seal head of the holder is opened, a water-saturated rock core is inserted into the holder, then the rock core is held by a locking bolt, an end cover is assembled, the installation of the rock core is completed, but in the process of installing the rock core, the rock core must be inserted into the holder in a horizontal state, and a tool is required to be used for poking the rock core into the holder, so that the tester is very inconvenient, the clamping force of the locking bolt on the rock core is completely operated by the experience of experimenters, the clamping force is difficult to control, the rock core is easy to crack, therefore, a rock resistivity stress sensitivity tester needs to be designed.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

Aiming at the problems that the existing rock resistivity stress sensitivity tester in the prior art comprises a mounting frame, a resistivity meter, a temperature controller, a holder, a balance, a collecting cup, an air pressure tank, a confining pressure device, a metering pump, a data processing device and the like, wherein the holder is horizontally fixed at the top of the mounting frame, when the tester is used, an end socket of the holder is opened, a water-saturated rock core is inserted into the holder, a locking bolt is used for holding the rock core, an end cover is assembled to complete the installation of the rock core, but in the process of installing the rock core, the rock core needs to be inserted into the holder in a horizontal state, a tool is needed to poke the rock core into the holder, the installation is very inconvenient, the clamping force of the locking bolt on the rock core is completely operated by the experience of experimenters, the clamping force is difficult to control, the rock, the great problem of rock resistivity measured value error results in, the utility model aims to provide a rock resistivity stress sensitivity tester, the problem of proposing in the solution background art that it can be fine.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a rock resistivity stress sensitivity tester, includes the mounting bracket, the bottom surface of mounting bracket inner chamber is equipped with the balance, and the top of balance is equipped with collects the cup, and the inner wall connection of mounting bracket has the backup pad, and the top surface of backup pad is equipped with temperature controller and resistivity appearance, and the top surface of mounting bracket is equipped with the confined pressure device, and the top surface of mounting bracket is equipped with the atmospheric pressure jar that is located confined pressure device right side, and the top surface of mounting bracket is equipped with the holder that is located confined pressure device the place ahead, and the top.

Preferably, the holder includes the bottom plate, and the bottom surface of bottom plate is connected with the top surface of mounting bracket, and the left end of bottom plate top surface is connected with the support column, and the top of support column is connected with the arc, and the right-hand member of bottom plate top surface is connected with angle adjusting device, and angle adjusting device's top is connected with clamping device.

Preferably, angle adjusting device is including fixed case, the bottom surface of fixed case is connected with the top surface of bottom plate, the fixed slot has been seted up at the top of fixed case, the right flank of fixed incasement chamber is connected with the rectangle sleeve, the telescopic inner wall of rectangle is connected with spacing slider through the reset spring transmission, spacing slider and the telescopic inner wall sliding connection of rectangle, spacing slider's left surface is connected with presses the depression bar, the outside of pressing the depression bar has fixed stop gear and limiting plate of having cup jointed from the right side to left side in proper order, the other end of pressing the depression bar extends to the outside of fixed case and is connected with the pressure disk, the rotation axis that is located the depression bar top is cup jointed in the inner wall activity of fixed case, the external fixation of rotation axis has cup jointed positioning gear, be connected with the insulation board.

Preferably, the clamping device comprises an inner barrel, an outer sleeve is fixedly sleeved outside the inner barrel and is in contact connection with the inner surface of the arc plate, a heating wire is arranged on the inner wall of the outer sleeve, the end part of the heating wire extends to the outside of the outer sleeve and is connected with a first connector lug, the first connector lug is connected with the outer surface of the outer sleeve, a vacuum cavity is formed in the outer sleeve, a first adapter is connected with the top surface of the outer sleeve, a gas pipe is connected with the bottom end of the first adapter, the bottom end of the gas pipe extends to the inside of the inner barrel, a right sealing cover is sleeved on the right end of the inner barrel in a threaded manner, the right side surface of the right sealing cover is connected with the end part of the insulating plate, a second adapter is connected with the bottom surface of the right sealing cover, a second connector lug is connected with the front surface of the right sealing cover, a right clamping column is, the other end of the outflow channel is communicated with an inner cavity of the inner cylinder, a rubber sleeve is arranged inside the inner cylinder, the rubber sleeve is movably sleeved with a right clamping column, the right end of the rubber sleeve is clamped between a right sealing cover and the inner cylinder, a rock core and a left clamping column are sequentially movably sleeved inside the rubber sleeve from right to left, the right end of the rock core is in contact connection with the left end of the right clamping column, the left end of the rock core is in contact connection with the right end of the left clamping column, the left end of the left clamping column extends to the outside of the rubber sleeve and is connected with an operating panel, an inflow channel is formed inside the left clamping column, one end of the inflow channel is communicated with the inner cavity of the rubber sleeve, a third adapter is connected to the back of the operating panel, the other end of the inflow channel is connected with the third adapter, a third right end is connected to the front of the operating panel, a conical rubber block and a left sealing cover are sequentially movably sleeved outside the left clamping column from right, the left end of the rubber sleeve is clamped between the inner cylinder and the left sealing cover, the left end of the inner cylinder is movably connected with a U-shaped plate, and a monitoring device is inserted in the left side face of the U-shaped plate.

Preferably, the monitoring device comprises a threaded pipe, the threaded pipe is in threaded sleeve connection with the left side surface of the U-shaped plate, the left end of the threaded pipe is connected with a rotating disk, the left side surface of the rotating disk is connected with an insulating lining, the right end of the insulating lining extends into the threaded pipe, the insulating lining and the threaded pipe, the equal threaded sleeve of rotary disk cup joints, the left end of insulating inside lining is connected with the warning light, the left surface of insulating inside lining inner chamber is connected with the current conducting plate, button cell has been cup jointed in the inside activity of insulating inside lining, the inner wall connection of insulating inside lining has the fender ring that is located the button cell right side, the top surface of insulating inside lining inner chamber is connected with the electrically conductive shell fragment that is located fender ring right side, the right-hand member of insulating inside lining is connected with insulating ejector pin through powerful spring drive, the inner wall sliding connection of insulating ejector pin and insulating inside lining, the left surface of insulating ejector pin is connected with the trigger bar, the left.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

through angle adjusting device, not only make clamping device can incline into arbitrary angle, and make clamping device can fix under arbitrary inclination's state, ensure that the rock core can insert the rubber sleeve with the state of slope, conveniently insert the rubber sleeve with the tip of rock core, the rock core can slide into inside the rubber sleeve under the effect of self gravity simultaneously, need not be with the help of extra instrument, high durability and convenient operation, keep watch on through monitoring arrangement to left centre gripping post and centre gripping dynamics between with, make the left centre gripping post of experimenter ability accurate control to the centre gripping dynamics of rock core, can not make the too big fracture damage of rock core atress, the degree of accuracy of resistivity measured value has been increased.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a block diagram of the clamp of FIG. 1 according to the present invention;

fig. 3 is a schematic view of the internal structure of the angle adjusting device of fig. 2 according to the present invention;

fig. 4 is a cross-sectional view taken along line a-a of fig. 3 according to the present invention;

FIG. 5 is a schematic view of the internal structure of the clamping device of FIG. 2 according to the present invention;

fig. 6 is a left-side view of the operation panel of fig. 5 according to the present invention;

fig. 7 is a schematic diagram of the internal structure of the monitoring device of fig. 5 according to the present invention.

The reference numbers in the figures illustrate:

1. a mounting frame; 2. a balance; 3. a collection cup; 4. a support plate; 5. a temperature controller; 6. a resistivity meter; 7. a confining pressure device; 8. an air pressure tank; 9. a holder; 10. a metering pump; 11. a base plate; 12. a support pillar; 13. an arc-shaped plate; 14. an angle adjusting device; 1400. a fixed box; 1401. fixing grooves; 1402. a rectangular sleeve; 1403. a return spring; 1404. a limiting slide block; 1405. a pressing lever; 1406. a limit gear; 1407. a limiting plate; 1408. a platen; 1409. a rotating shaft; 1410. positioning a gear; 1411. an insulating plate; 15. a clamping device; 1501. an inner cylinder; 1502. an outer sleeve; 1503. heating wires; 1504. a first connector lug; 1505. a vacuum chamber; 1506. a first adapter; 1507. a gas delivery pipe; 1508. a right sealing cover; 1509. a second adapter; 1510. a second connector lug; 1511. a right clamping post; 1512. an outflow tract; 1513. a rubber sleeve; 1514. a core; 1515. a left clamping post; 1516. an operation panel; 1517. a flow inlet channel; 1518. a third adapter; 1519. a third terminal; 1520. a conical rubber block; 1521. a left cover; 1522. a U-shaped plate; 16. a monitoring device; 1601. a threaded pipe; 1602. rotating the disc; 1603. an insulating liner; 1604. a warning light; 1605. a conductive plate; 1606. a button cell; 1607. a baffle ring; 1608. a conductive spring plate; 1609. a strong spring; 1610. an insulating ejector rod; 1611. a trigger lever.

Detailed Description

The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the present invention; rather than all embodiments. Based on the embodiment of the utility model; all other embodiments obtained by a person skilled in the art without making any inventive step; all belong to the protection scope of the utility model.

Referring to fig. 1-7, a rock resistivity stress sensitivity tester comprises an installation frame 1, wherein a balance 2 is arranged on the bottom surface of an inner cavity of the installation frame 1, the model of the balance 2 is BS223S, a collection cup 3 is arranged at the top of the balance 2, a support plate 4 is connected to the inner wall of the installation frame 1, a temperature controller 5 and a resistivity meter 6 are arranged on the top surface of the support plate 4, a confining pressure device 7 is arranged on the top surface of the installation frame 1, an air pressure tank 8 located on the right side of the confining pressure device 7 is arranged on the top surface of the installation frame 1, a clamp holder 9 located in front of the confining pressure device 7 is arranged on the top surface of the installation frame 1, a metering pump 10 located in front of the air.

The holder 9 comprises a bottom plate 11, the bottom surface of the bottom plate 11 is connected with the top surface of the mounting rack 1, the left end of the top surface of the bottom plate 11 is connected with a supporting column 12, the top end of the supporting column 12 is connected with an arc-shaped plate 13, the right end of the top surface of the bottom plate 11 is connected with an angle adjusting device 14, and the top of the angle adjusting device 14 is connected with a clamping device 15.

The angle adjusting device 14 comprises a fixed box 1400, the bottom surface of the fixed box 1400 is connected with the top surface of the bottom plate 11, a fixed groove 1401 is provided at the top of the fixed box 1400, the right side surface of the inner cavity of the fixed box 1400 is connected with a rectangular sleeve 1402, the inner wall of the rectangular sleeve 1402 is connected with a limit slider 1404 through a reset spring 1403, the limit slider 1404 is in sliding connection with the inner wall of the rectangular sleeve 1402, the left side surface of the limit slider 1404 is connected with a pressing rod 1405, the outside of the pressing rod 1405 is sequentially and fixedly sleeved with a limit gear 1406 and a limit plate 1407 from right to left, the other end of the pressing rod 1405 extends to the outside of the fixed box 1400 and is connected with a pressure disk 1408, the inner wall of the fixed box 1400 is movably sleeved with a rotating shaft 1409 located above the pressing rod 1405, the outside of the rotating shaft 1409 is fixedly sleeved with a positioning gear 1410 is connected with an.

The clamping device 15 comprises an inner cylinder 1501, an outer sleeve 1502 is fixedly sleeved outside the inner cylinder 1501, the inner cylinder 1501 and the outer sleeve 1502 are both made of insulating materials, the outer sleeve 1502 is in contact connection with the inner surface of the arc-shaped plate 13, a heating wire 1503 is arranged on the inner wall of the outer sleeve 1502, the end portion of the heating wire 1503 extends to the outside of the outer sleeve 1502 and is connected with a first connector 1504, the first connector 1504 is electrically connected with the temperature controller 5, the first connector 1504 is connected with the outer surface of the outer sleeve 1502, a vacuum cavity 1505 is formed inside the outer sleeve 1502, a first adapter 1506 is connected to the top surface of the outer sleeve 1502 and is communicated with the confining pressure device 7, the bottom end of the first adapter 1506 is connected with a gas pipe 1507, the bottom end of the gas pipe 1507 extends to the inside of the inner cylinder 1501, a right sealing cover 1508 is sleeved on the right end of the inner cylinder 1501 in a threaded manner, a second adapter 1509 is connected to the bottom surface of the right sealing cover 1508, the second adapter 1509 is communicated with the collecting cup 3, a second connector 1510 is connected to the front surface of the right sealing cover 1508, a right clamping column 1511 is arranged on the inner wall of the right sealing cover 1508, an outflow channel 1512 is arranged inside the right clamping column 1511, one end of the outflow channel 1512 is communicated with the second adapter 1509, the other end of the outflow channel 1512 is communicated with the inner cavity of the inner cylinder 1501, a rubber sleeve 1513 is arranged inside the inner cylinder 1501, the rubber sleeve 1513 is movably sleeved with the right clamping column 1511, the right end of the rubber sleeve 1513 is clamped between the right sealing cover 1508 and the inner cylinder 1501, a core 1514 and a left clamping column 1515 are movably sleeved inside the rubber sleeve 1513 from right to left in turn, the right end of the core 1514 is in contact connection with the left end of the right clamping column 1511, the left end of the core 1514 is in contact connection with the right clamping column 1515, the left end of the left clamping column 1515 extends to the outside of the rubber sleeve 151, the right sealing cover 1508, the right clamping column 1511, the left clamping column 1515 and the operation panel 1516 are made of conductive materials, the left clamping column 1515 is internally provided with a flow channel 1517, one end of the flow channel 1517 is communicated with the inner cavity of the rubber sleeve 1513, the back surface of the operation panel 1516 is connected with a third adapter 1518, the third adapter 1518 is communicated with an air pressure tank 8, the third adapter 1518 is connected with the other end of the flow channel 1517, the front surface of the operation panel 1516 is connected with a third wire connector 1519, the second wire connector 1510 and the third wire connector 1519 are electrically connected with the resistivity meter 6, the outside of the left clamping column 1515 is movably sleeved with a conical rubber block 1520 and a left sealing cover 1521 from right to left, the conical rubber block 1520 is in contact connection with the inner wall of the inner cylinder 1501, the left sealing cover 1521 is in threaded connection with the left end of the inner cylinder 1501, the left end of the rubber sleeve 1513 is clamped between the inner cylinder 1501 and the left sealing cover 1521, the left end of the inner cylinder 1501 is movably connected with a, the monitoring device 16 is inserted through the left side surface of the U-shaped plate 1522, so that the displacement process and the resistivity measurement process are performed simultaneously, the holder 9 can dynamically test the resistivity of the core 1514, and a curve graph of the resistivity of the core 1514 and the water saturation of the core 1514 is conveniently mapped.

The monitoring device 16 comprises a threaded pipe 1601, the threaded pipe 1601 is in threaded sleeve joint with the left side of a U-shaped plate 1522, the left end of the threaded pipe 1601 is connected with a rotating disk 1602, the left side of the rotating disk 1602 is connected with an insulating lining 1603, the right end of the insulating lining 1603 extends into the threaded pipe 1601, the insulating lining 1603 is in threaded sleeve joint with the threaded pipe 1601 and the rotating disk 1602, the left end of the insulating lining 1603 is connected with a warning lamp 1604, the left side of the inner cavity of the insulating lining 1603 is connected with a conducting plate 1605, the conducting plate 1605 is electrically connected with the warning lamp 1604, a button cell 1606 is movably sleeved in the insulating lining 1603, the inner wall of the insulating lining 1603 is connected with a retaining ring 1607 positioned on the right side of the button cell 1606, the top surface of the inner cavity of the insulating lining 1603 is connected with a conducting elastic sheet 1608 positioned on the right side of the retaining ring 1607, the other end of the conducting elastic sheet 1608 extends into the central hole of the, the insulating top rod 1610 is connected with the inner wall of the insulating lining 1603 in a sliding mode, the left side face of the insulating top rod 1610 is connected with a trigger rod 1611, and the left end of the trigger rod 1611 extends into the insulating lining 1603.

The working principle is as follows:

firstly, the pressing rod 1405 is pressed by the pressure plate 1408, the pressing rod 1405 moves towards the direction of the rectangular sleeve 1402, then the pressing rod 1405 drives the limit gear 1406 to move towards the direction of the rectangular sleeve 1402, the limit gear 1406 is separated from the positioning gear 1410, then the monitoring device 16 is moved upwards, the monitoring device 16 drives the left end of the thermostat 5 to move upwards, then the thermostat 5 rotates by taking the rotating shaft 1409 as a central axis, the inclination of the thermostat 5 is adjusted until the inclination angle of the thermostat 5 reaches the use requirement, then the pressure plate 1408 is released, the limit slider 1404 drives the limit gear 1406 to move away from the rectangular sleeve 1402 by the pressing rod 1405 under the action of the elastic force of the return spring 1403, the limit gear 1406 is meshed with the positioning gear 1410, the positioning gear 1410 cannot rotate, the inclination angle of the thermostat 5 is fixed, and then the monitoring device 16 is rotated, the monitoring device 16 is separated from the operating panel 1516, the U-shaped plate 1522 is then rotated to offset the U-shaped plate 1522 from the central axis of the operating panel 1516, the left cap 1521 is then removed, the left clamping column 1515, the tapered rubber block 1520, and the left cap 1521 are then pulled out together, the right end of the core 1514 is then inserted into the left end of the rubber sleeve 1513, the core 1514 slides into the rubber sleeve 1513 under its own weight, the right end of the core 1514 is brought into contact with the left end of the right clamping column 1511, the right end of the left clamping column 1515 is then inserted into the left end of the rubber sleeve 1513, the left clamping column 1515 is pushed into the rubber sleeve 1513, the tapered rubber block 1520 is then inserted into the left end of the rubber sleeve 1513, the left cap 1521 is then bolted to the inner barrel, the U-shaped plate 1521 is then rotated, the U-shaped plate 1522 is rotated to bring the central axis of the U-shaped plate 1522 into registration with the central axis of the operating panel 1516, the rotating disk, the threaded pipe 1601 moves rightwards under the action of thread fit, so that the right end of the insulating ejector rod 1610 abuts against the middle of the left side surface of the operating panel 1516, then the insulating ejector rod 1610 pushes the left clamping column 1515 to move rightwards through the operating panel 1516, so that the right end of the left clamping column 1515 abuts against the left end surface of the core 1514, so that the position of the operating panel 1516 is fixed, then the threaded pipe 1601 continues to move rightwards, the insulating ejector rod 1610 moves towards the inside of the threaded pipe 1601 and extrudes the strong spring 1609 under the reaction force of the operating panel 1516, meanwhile, the insulating ejector rod 1610 drives the trigger rod 1611 to move leftwards relative to the threaded pipe 1601, then the trigger rod 1611 extrudes the end of the conductive shrapnel 1608, the conductive shrapnel 1608 elastically deforms and contacts with the button cell 1606, the power supply of the warning light 1604 is switched on, the warning light is emitted by the warning light, the threaded pipe 1601 stops rotating, at this time, the elastic force of the strong spring 1609, the installation of the core 1514 is completed, after which the experiment is started.

The above; is only a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; according to the technical scheme of the utility model and the improvement conception, equivalent substitution or change is carried out; are all covered by the protection scope of the utility model.

Claims

1. The utility model provides a rock resistivity stress sensitivity tester, includes mounting bracket (1), its characterized in that: the bottom surface of mounting bracket (1) inner chamber is equipped with balance (2), the top of balance (2) is equipped with collects cup (3), the inner wall connection of mounting bracket (1) has backup pad (4), the top surface of backup pad (4) is equipped with temperature controller (5) and resistivity appearance (6), the top surface of mounting bracket (1) is equipped with confined pressure device (7), the top surface of mounting bracket (1) is equipped with atmospheric pressure jar (8) that are located confined pressure device (7) right side, the top surface of mounting bracket (1) is equipped with holder (9) that are located confined pressure device (7) the place ahead, the top surface of mounting bracket (1) is equipped with measuring pump (10) that are located atmospheric pressure jar (8.

2. The rock resistivity stress sensitivity tester of claim 1, characterized in that: the clamp holder (9) comprises a bottom plate (11), the bottom surface of the bottom plate (11) is connected with the top surface of the mounting rack (1), the left end of the top surface of the bottom plate (11) is connected with a supporting column (12), the top end of the supporting column (12) is connected with an arc-shaped plate (13), the right end of the top surface of the bottom plate (11) is connected with an angle adjusting device (14), and the top of the angle adjusting device (14) is connected with a clamping device (15).

3. The rock resistivity stress sensitivity tester of claim 2, characterized in that: the angle adjusting device (14) comprises a fixed box (1400), the bottom surface of the fixed box (1400) is connected with the top surface of a bottom plate (11), a fixed groove (1401) is formed in the top of the fixed box (1400), a rectangular sleeve (1402) is connected to the right side surface of an inner cavity of the fixed box (1400), a limiting slider (1404) is connected to the inner wall of the rectangular sleeve (1402) through a reset spring (1403) in a transmission mode, the limiting slider (1404) is connected with the inner wall of the rectangular sleeve (1402) in a sliding mode, a pressing rod (1405) is connected to the left side surface of the limiting slider (1404), a limiting gear (1406) and a limiting plate (1407) are fixedly sleeved on the outside of the pressing rod (1405) from right to left in sequence, the other end of the pressing rod (1405) extends to the outside of the fixed box (1400) and is connected with a pressure plate (1408), a rotating shaft (1409) located, the outside of the rotating shaft (1409) is fixedly sleeved with a positioning gear (1410), an insulating plate (1411) is connected to the positioning gear (1410), and the other end of the insulating plate (1411) penetrates through the fixing groove (1401) and is connected with the clamping device (15).

4. The rock resistivity stress sensitivity tester of claim 2, characterized in that: the clamping device (15) comprises an inner barrel body (1501), an outer sleeve (1502) is fixedly sleeved outside the inner barrel body (1501), the outer sleeve (1502) is in contact connection with the inner surface of an arc-shaped plate (13), a heating wire (1503) is arranged on the inner wall of the outer sleeve (1502), the end of the heating wire (1503) extends to the outside of the outer sleeve (1502) and is connected with a first connector lug (1504), the first connector lug (1504) is connected with the outer surface of the outer sleeve (1502), a vacuum cavity (1505) is formed inside the outer sleeve (1502), a first adapter (1506) is connected to the top surface of the outer sleeve (1502), the bottom end of the first adapter (1506) is connected with a gas pipe (1507), the bottom end of the gas pipe (1507) extends to the inside of the inner barrel body (1501), a right sealing cover (1508) is sleeved on the right end thread of the inner barrel body (1501), and the right side surface of the right sealing cover (, the bottom surface of a right sealing cover (1508) is connected with a second adapter (1509), the front surface of the right sealing cover (1508) is connected with a second connector (1510), the inner wall of the right sealing cover (1508) is provided with a right clamping column (1511), the inside of the right clamping column (1511) is provided with an outflow channel (1512), one end of the outflow channel (1512) is communicated with the second adapter (1509), the other end of the outflow channel (1512) is communicated with the inner cavity of the inner cylinder (1501), the inside of the inner cylinder (1501) is provided with a rubber sleeve (1513), the rubber sleeve (1513) is movably sleeved with the right clamping column (1511), the right end of the rubber sleeve (1513) is clamped between the right sealing cover (1508) and the inner cylinder (1501), a core (1514) and a left clamping column (1515) are movably sleeved from right to left inside of the rubber sleeve (1513), the right end of the core (1514) is in contact connection with the left end of the right clamping column (1511), the left end of the core (1514) is in contact with the right clamping column (1515), the left end of the left clamping column (1515) extends to the outside of the rubber sleeve (1513) and is connected with an operation panel (1516), a flow inlet channel (1517) is formed in the left clamping column (1515), one end of the flow inlet channel (1517) is communicated with the inner cavity of the rubber sleeve (1513), the back of the operation panel (1516) is connected with a third adapter (1518), the third adapter (1518) is connected with the other end of the flow inlet channel (1517), the front of the operation panel (1516) is connected with a third wiring head (1519), a tapered rubber block (1520) and a left sealing cover (1521) are movably sleeved on the outside of the left clamping column (1515) from right to left in sequence, the tapered rubber block (1520) is in contact connection with the inner wall of the inner cylinder body (1501), the left sealing cover (1521) is in threaded connection with the left end of the inner cylinder body (1501), the left end of the rubber sleeve (1513) is clamped between the inner cylinder body (1501) and the left sealing cover (1501), and the left movable U1522) of the inner cylinder body (1501) is connected with the, a monitoring device (16) is inserted on the left side surface of the U-shaped plate (1522).

5. The rock resistivity stress sensitivity tester of claim 4, characterized in that: the monitoring device (16) comprises a threaded pipe (1601), the threaded pipe (1601) is in threaded sleeve joint with the left side face of a U-shaped plate (1522), the left end of the threaded pipe (1601) is connected with a rotating disk (1602), the left side face of the rotating disk (1602) is connected with an insulating lining (1603), the right end of the insulating lining (1603) extends to the inside of the threaded pipe (1601), the insulating lining (1603) is in threaded sleeve joint with the threaded pipe (1601) and the rotating disk (1602), the left end of the insulating lining (1603) is connected with a warning lamp (1604), the left side face of the inner cavity of the insulating lining (1603) is connected with a conductive plate (1605), a button cell (1606) is movably sleeved in the inside of the insulating lining (1603), the inner wall of the insulating lining (1603) is connected with a retaining ring (1607) located on the right side of the button cell (1606), the top face of the inner cavity of the insulating lining (, the right end of insulating inside lining (1603) is connected with insulating ejector pin (1610) through powerful spring (1609) transmission, and insulating ejector pin (1610) and the inner wall sliding connection of insulating inside lining (1603), the left surface of insulating ejector pin (1610) is connected with trigger bar (1611), and the left end of trigger bar (1611) extends to the inside of insulating inside lining (1603).