CN112943231B - Pressure self-balancing type deep well ground stress monitoring probe - Google Patents
Pressure self-balancing type deep well ground stress monitoring probe Download PDFInfo
- Publication number
- CN112943231B CN112943231B CN202110186624.7A CN202110186624A CN112943231B CN 112943231 B CN112943231 B CN 112943231B CN 202110186624 A CN202110186624 A CN 202110186624A CN 112943231 B CN112943231 B CN 112943231B
- Authority
- CN
- China
- Prior art keywords
- probe
- deep well
- self
- ground stress
- stress monitoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000523 sample Substances 0.000 title claims abstract description 115
- 238000012544 monitoring process Methods 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 claims description 53
- 230000003044 adaptive effect Effects 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 13
- 238000009434 installation Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides a pressure self-balancing type deep well ground stress monitoring probe, and relates to the technical field of ground stress monitoring. The pressure self-balancing type deep well ground stress monitoring probe comprises a probe cylinder, a sensor and a self-adaptive piston; the self-adaptive piston is arranged in the inner cavity of the probe cylinder and divides the probe cylinder into a first cavity and a second cavity, and the self-adaptive piston can move along the axial direction of the probe cylinder; the sensor is arranged on the side wall of the first chamber and penetrates through the side wall of the first chamber; the second chamber is communicated with the external space of the probe cylinder. The pressure self-balancing type deep well ground stress monitoring probe eliminates the pressure difference between the underground water body in the deep well and the oil body in the probe cylinder by utilizing the hydraulic balance function of the self-adaptive piston, so that the oil pressure in the probe cylinder is constantly equal to the hydraulic pressure in the deep well, the liquid pressure difference on the stress surfaces at the inner side and the outer side of the sensor is further eliminated, and the ground stress monitoring error caused by the change of the water pressure in the deep well is avoided.
Description
Technical Field
The invention relates to the technical field of ground stress monitoring, in particular to a pressure self-balancing type deep well ground stress monitoring probe.
Background
Currently, in the construction of deep well ground stress monitoring probes, the outside of the sensor unit contacts the wall of the well for measuring changes in ground stress, while the inside of the sensor unit is located in a sealed chamber inside the probe barrel.
Underground water is ubiquitous in deep wells provided with the ground stress monitoring probes, and the underground water level changes irregularly along with seasons. Therefore, in the long-term crustal stress monitoring process, the hydraulic numerical value inside the probe cylinder is often unequal to the hydraulic numerical value in the deep well, and under the condition that pressure difference exists between the two spaces, the stress surface outside the sensor unit is inevitably subjected to pressure interference caused by the hydraulic pressure difference inside and outside the probe cylinder, so that accurate crustal stress data cannot be obtained.
Disclosure of Invention
The invention aims to provide a pressure self-balancing type deep well ground stress monitoring probe, which is helpful for solving the technical problem.
The invention is realized by the following steps:
a pressure self-balancing type deep well ground stress monitoring probe comprises a probe cylinder, a sensor and a self-adaptive piston; the self-adaptive piston is arranged in an inner cavity of the probe cylinder, the probe cylinder is divided into a first cavity and a second cavity by the self-adaptive piston, and the self-adaptive piston can move along the axial direction of the probe cylinder; the sensor is arranged on the side wall of the first chamber and penetrates through the side wall of the first chamber; the second chamber is communicated with the external space of the probe cylinder.
The working principle of the pressure self-balancing type deep well ground stress monitoring probe is that no matter the probe barrel is located at any depth position in a deep well, the self-adaptive piston can automatically adjust the position of the probe barrel according to the pressure of liquid in the deep well, the pressure difference between the liquid in the deep well and oil in the probe barrel is eliminated, the oil pressure in the probe barrel is constantly equal to the hydraulic pressure in the deep well, and the monitoring error caused by the pressure of water in the deep well is avoided. And when the installation depth position of the whole ground stress monitoring probe is changed in the deep well, the self-adaptive piston can be automatically adjusted, so that ground stress monitoring errors caused by pressure difference inside and outside the probe cylinder are avoided.
Further, a first sealing ring is arranged on the self-adaptive piston; the first sealing ring and the probe cylinder are coaxially arranged, and the first sealing ring is located between the adaptive piston and the probe cylinder. The technical effects are as follows: the primary function of the first seal ring is to seal and isolate the outer annular surface of the adaptive piston from the inner wall of the probe cylinder. In particular, the number of the first sealing rings can be set to be a plurality, so that a multi-layer seal between two annular surfaces is formed.
Furthermore, a first ring groove is formed in the outer ring surface of the self-adaptive piston, the first ring groove and the probe cylinder are coaxially arranged, and the first sealing ring is located in the first ring groove. The technical effects are as follows: the number of the first ring grooves is equal to that of the first sealing rings, and one first sealing ring is arranged in any one first ring groove. And the radial thickness of the first sealing ring is larger than the depth of the first ring groove, so that the first sealing ring is in interference fit with the inner wall of the probe cylinder.
Furthermore, a through hole and a plug are also arranged on the self-adaptive piston; the axis of the through hole is parallel to the axis of the probe barrel, and the plug is used for plugging the through hole. The technical effects are as follows: the arrangement of the through holes is convenient for the ground stress monitoring probe to inject oil into the inner cavity of the probe barrel after installation, and the matching arrangement of the plugs and the through holes can ensure that the probe barrel is filled with the oil without bubbles.
Furthermore, the through hole is a threaded hole, the plug is a bolt, and the plug is in threaded connection with the through hole. The technical effects are as follows: the plug and the through hole are in threaded connection, so that the installation and the disassembly are facilitated, and the threaded structure can also play a sealing effect.
Furthermore, a second ring groove and a second sealing ring are arranged on the plane of the plug, which is attached to the self-adaptive piston; the axis of the second ring groove and the axis of the second sealing ring are both superposed with the axis of the plug, and the second sealing ring is positioned in the second ring groove; the radial thickness of the second sealing ring is larger than the depth of the second ring groove. The technical effects are as follows: because the threads are generally in a hard metal connecting structure, abrasion or deformation is inevitable in the installation and use process, and the sealing failure of the through hole and the plug is caused. At the moment, the second ring groove and the second sealing ring which are matched with each other are arranged on the plane of the self-adaptive piston, the sealing of the inner space and the outer space of the probe cylinder body is realized on the plane, the effect is more obvious, the design and the manufacture are simpler and more convenient, and the sealing condition is not easily influenced by abrasion, deformation and the like in the long-term use process. And because the radial thickness of the second sealing ring is greater than the depth of the second ring groove, the second sealing ring is extruded by the plane between the plug and the self-adaptive piston after the plug is installed in the through hole, and the sealing reliability is further improved.
Furthermore, a guide hole and a guide rod are also arranged on the self-adaptive piston; the axis of the guide hole coincides with the axis of the probe cylinder, the guide rod penetrates through the guide hole, and the guide hole is fixedly arranged in the probe cylinder. The technical effects are as follows: the guide rod and the probe cylinder are coaxially arranged, on one hand, the self-adaptive piston can be moved and guided, on the other hand, the guide rod can also be used as a power output shaft of a driving motor and has the functions of guiding and torque transmission.
Further, a third sealing ring is arranged between the guide hole and the guide rod. The technical effects are as follows: the third sealing ring realizes the ring surface sealing between the guide rod and the inner wall of the guide hole.
Furthermore, the number of the sensors is multiple, and the sensors are sequentially arranged along the axial direction of the probe cylinder. The technical effects are as follows: the sensors are arranged along the axial direction of the probe cylinder body, so that the sensors form a staggered installation structure, and the use space of the probe cylinder body is effectively utilized.
Further, the number of the sensors is multiple, and the sensors are uniformly distributed along the circumferential direction of the probe cylinder. The technical effects are as follows: the sensors uniformly distributed along the circumferential direction of the probe cylinder can disperse measuring points in the deep well to obtain the ground stress data of all directions.
The invention has the beneficial effects that:
the pressure self-balancing type deep well ground stress monitoring probe eliminates the pressure difference between the underground water body in the deep well and the oil body in the probe cylinder by utilizing the hydraulic balance function of the self-adaptive piston, so that the oil pressure in the probe cylinder is constantly equal to the hydraulic pressure in the deep well, the liquid pressure difference on the stress surfaces at the inner side and the outer side of the sensor is further eliminated, and the ground stress monitoring error caused by the change of the water pressure in the deep well is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of the overall structure of a pressure self-balancing deep well ground stress monitoring probe provided by the invention;
FIG. 2 is a schematic diagram of a fitting structure of a probe cylinder and a self-adaptive piston in the pressure self-balancing type deep well ground stress monitoring probe provided by the invention;
fig. 3 is a schematic structural diagram of an adaptive piston in the pressure self-balancing deep well ground stress monitoring probe provided by the invention.
Icon: 100-probe cylinder body; 110 — a first chamber; 120-a second chamber; 200-a sensor; 300-an adaptive piston; 310-a first sealing ring; 320-a first ring groove; 330-a through hole; 340-a plug; 341-second ring groove; 342-a second sealing ring; 350-a guide hole; 360-a guide rod; 361-third sealing ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention that are generally described and illustrated in the figures can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
FIG. 1 is a schematic view of the overall structure of a pressure self-balancing deep well ground stress monitoring probe provided by the invention; fig. 2 is a schematic diagram of a fitting installation structure of the probe cylinder 100 and the adaptive piston 300 in the pressure self-balancing type deep well ground stress monitoring probe provided by the invention; fig. 3 is a schematic structural diagram of an adaptive piston 300 in the pressure self-balancing deep well ground stress monitoring probe provided by the invention. Referring to fig. 1, fig. 2 and fig. 3, the present embodiment provides a pressure self-balancing deep well ground stress monitoring probe, which includes a probe cylinder 100, a sensor 200 and an adaptive piston 300.
Wherein, the adaptive piston 300 is arranged in the inner cavity of the probe cylinder 100, the adaptive piston 300 divides the probe cylinder 100 into a first chamber 110 and a second chamber 120, and the adaptive piston 300 can move along the axial direction of the probe cylinder 100; the sensor 200 is disposed on a sidewall of the first chamber 110, and the sensor 200 penetrates the sidewall of the first chamber 110; the second chamber 120 communicates with the external space of the probe cylinder 100.
In the above structure, the first chamber 110 is used for loading the sensor 200, the transmission mechanism, the driving motor and other key mechanisms, and forms an isolated closed space with the outside. The second chamber 120 is a section of the probe cylinder 100, which meets the stroke requirement of the adaptive piston 300, and a runner is arranged on the side wall of the second chamber 120, so that the second chamber 120 is communicated with the deep well.
The working principle and the operation method of the pressure self-balancing type deep well ground stress monitoring probe of the embodiment are as follows: no matter the probe cylinder 100 is positioned at any depth position in the deep well, the self-adaptive piston 300 can automatically adjust the position of the probe cylinder 100 according to the pressure of liquid in the deep well, the pressure difference between the liquid in the deep well and oil in the probe cylinder 100 is eliminated, the oil pressure in the probe cylinder 100 is constantly equal to the hydraulic pressure in the deep well, and the monitoring error caused by the pressure of water in the deep well is avoided. In addition, when the installation depth position of the whole ground stress monitoring probe is changed in a deep well, the self-adaptive piston 300 can be automatically adjusted, so that ground stress monitoring errors caused by pressure difference between the inside and the outside of the probe cylinder 100 are avoided.
On the basis of the above embodiments, as shown in fig. 1, 2, and 3, optionally, the adaptive piston 300 is provided with a first sealing ring 310; the first sealing ring 310 is disposed coaxially with the probe cylinder 100, and the first sealing ring 310 is located between the adaptive piston 300 and the probe cylinder 100. At this time, the primary function of the first seal ring 310 is to seal the outer annular surface of the adaptive piston 300 from the inner wall of the probe cylinder 100. Specifically, the number of the first sealing ring 310 may be set to be plural, forming a multi-layer seal between two annular surfaces.
On the basis of the above embodiments, as shown in fig. 1, 2 and 3, optionally, a first ring groove 320 is provided on the outer annular surface of the adaptive piston 300, the first ring groove 320 is coaxially disposed with the probe cylinder 100, and the first sealing ring 310 is located in the first ring groove 320. At this time, the number of the first ring grooves 320 is equal to the number of the first seal rings 310, and one first seal ring 310 is disposed in any one of the first ring grooves 320. Moreover, the radial thickness of the first sealing ring 310 should be greater than the depth of the first ring groove 320, so that the first sealing ring 310 forms an interference fit with the inner wall of the probe cylinder 100.
On the basis of the above embodiments, as shown in fig. 1, 2, and 3, optionally, the adaptive piston 300 is further provided with a through hole 330 and a plug 340; the axis of the through hole 330 is parallel to the axis of the probe cylinder 100, and the plug 340 is used for plugging the through hole 330. In the structure, the through hole 330 is arranged to facilitate the injection of oil into the inner cavity of the probe cylinder 100 after the ground stress monitoring probe is installed, and the matching arrangement of the plug 340 and the through hole 330 can ensure that the probe cylinder 100 is filled with oil without bubbles.
On the basis of the above embodiments, as shown in fig. 1, 2, and 3, optionally, the through hole 330 is a threaded hole, the plug 340 is a bolt, and the plug 340 and the through hole 330 are screwed. The plug 340 and the through hole 330 may be connected by extrusion, or the plug 340 may be adhered to the outside of the through hole 330. The embodiment sets up both into the spiro union, not only does benefit to installation and dismantlement to screw thread structure also can play sealed effect.
On the basis of the above embodiments, as shown in fig. 1, 2, and 3, optionally, a second ring groove 341 and a second sealing ring 342 are provided on the plane where the plug 340 is attached to the adaptive piston 300; the axis of the second annular groove 341 and the axis of the second sealing ring 342 are both overlapped with the axis of the plug 340, and the second sealing ring 342 is positioned in the second annular groove 341; the radial thickness of the second seal ring 342 is greater than the depth of the second groove 341. In this structure, since the threads are generally hard metal, wear or deformation is inevitable during installation and use, which results in failure of sealing between the through hole 330 and the plug 340. At this time, the second ring groove 341 and the second seal ring 342 which are matched with each other are arranged on the plane of the adaptive piston 300, so that the sealing of the inner space and the outer space of the probe cylinder 100 is realized on the plane, the effect is more obvious, the design and the manufacture are simpler and more convenient, and the sealing condition is not easily influenced by abrasion, deformation and the like in the long-term use process. In addition, since the radial thickness of the second sealing ring 342 is greater than the depth of the second ring groove 341, after the plug 340 is installed in the through hole 330, the second sealing ring 342 is pressed by the plane between the plug 340 and the adaptive piston 300, thereby further improving the sealing reliability.
On the basis of the above embodiments, as shown in fig. 1, 2, and 3, optionally, the adaptive piston 300 is further provided with a guide hole 350 and a guide rod 360; the axis of the guide hole 350 coincides with the axis of the probe cylinder 100, the guide rod 360 penetrates through the guide hole 350, and the guide hole 350 is fixedly disposed in the probe cylinder 100. The guide rod 360 and the probe cylinder 100 are coaxially arranged, so that on one hand, the self-adaptive piston 300 can be guided in a moving mode, and on the other hand, the guide rod 360 can also serve as a power output shaft of a driving motor and has the functions of guiding and torque transmission.
On the basis of the above embodiments, as shown in fig. 1, 2 and 3, a third sealing ring 361 is optionally provided between the guide hole 350 and the guide rod 360. At this time, the third sealing ring 361 provides a toroidal seal between the guide rod 360 and the inner wall of the guide hole 350.
On the basis of the above embodiment, as shown in fig. 1, 2, and 3, the number of the sensors 200 is optionally plural, and the plural sensors 200 are sequentially arranged in the axial direction of the probe cylinder 100. In this configuration, the plurality of sensors 200 are arranged along the axial direction of the probe cylinder 100, so that the plurality of sensors 200 form a staggered installation structure, and the use space of the probe cylinder 100 is effectively utilized.
On the basis of the above embodiment, optionally, as shown in fig. 1, the number of the sensors 200 is multiple, and the multiple sensors 200 are uniformly distributed along the circumferential direction of the probe cylinder 100. In this configuration, the plurality of sensors 200 uniformly distributed in the circumferential direction of the probe cylinder 100 can disperse measurement points in the deep well and obtain the ground stress data in each direction. The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A pressure self-balancing type deep well ground stress monitoring probe is characterized by comprising a probe cylinder (100), a sensor (200) and a self-adaptive piston (300); the adaptive piston (300) is arranged in the inner cavity of the probe cylinder (100), the adaptive piston (300) divides the probe cylinder (100) into a first chamber (110) and a second chamber (120), and the adaptive piston (300) can move along the axial direction of the probe cylinder (100); the sensor (200) is arranged on the side wall of the first chamber (110), and the sensor (200) penetrates through the side wall of the first chamber (110); the second chamber (120) is communicated with the external space of the probe cylinder body (100);
the self-adaptive piston (300) is also provided with a through hole (330) and a plug (340); the axis of the through hole (330) is parallel to the axis of the probe cylinder (100), and the plug (340) is used for plugging the through hole (330); the through hole (330) is a threaded hole, the plug (340) is a bolt, and the plug (340) is in threaded connection with the through hole (330);
the self-adaptive piston (300) is also provided with a guide hole (350) and a guide rod (360); the axis of guiding hole (350) with the axis coincidence of probe barrel (100), guide bar (360) run through guiding hole (350), just guiding hole (350) are fixed to be set up in probe barrel (100), just guide bar (360) are driving motor's in probe barrel (100) power take-off shaft.
2. The pressure self-balancing deep well ground stress monitoring probe according to claim 1, characterized in that a first sealing ring (310) is arranged on the adaptive piston (300); the first sealing ring (310) and the probe cylinder body (100) are coaxially arranged, and the first sealing ring (310) is located between the adaptive piston (300) and the probe cylinder body (100).
3. The pressure self-balancing deep well ground stress monitoring probe according to claim 2, characterized in that a first ring groove (320) is arranged on the outer ring surface of the adaptive piston (300), the first ring groove (320) is arranged coaxially with the probe cylinder (100), and the first sealing ring (310) is located in the first ring groove (320).
4. The pressure self-balancing deep well ground stress monitoring probe according to claim 1, characterized in that a second ring groove (341) and a second sealing ring (342) are arranged on the plane where the plug (340) is attached to the adaptive piston (300); the axis of the second ring groove (341) and the axis of a second sealing ring (342) are both superposed with the axis of the choke plug (340), and the second sealing ring (342) is positioned in the second ring groove (341); the radial thickness of the second seal ring (342) is greater than the depth of the second ring groove (341).
5. The pressure self-balancing deep well ground stress monitoring probe according to claim 1, characterized in that a third sealing ring (361) is arranged between the guide hole (350) and the guide rod (360).
6. The pressure self-balancing deep well ground stress monitoring probe according to claim 1, characterized in that the number of the sensors (200) is multiple, and the multiple sensors (200) are sequentially arranged along the axial direction of the probe cylinder (100).
7. The pressure self-balancing deep well ground stress monitoring probe according to claim 1, characterized in that the number of the sensors (200) is multiple, and the multiple sensors (200) are uniformly distributed along the circumferential direction of the probe cylinder (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110186624.7A CN112943231B (en) | 2021-02-09 | 2021-02-09 | Pressure self-balancing type deep well ground stress monitoring probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110186624.7A CN112943231B (en) | 2021-02-09 | 2021-02-09 | Pressure self-balancing type deep well ground stress monitoring probe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112943231A CN112943231A (en) | 2021-06-11 |
| CN112943231B true CN112943231B (en) | 2022-02-11 |
Family
ID=76245825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110186624.7A Active CN112943231B (en) | 2021-02-09 | 2021-02-09 | Pressure self-balancing type deep well ground stress monitoring probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112943231B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU991031A1 (en) * | 1980-06-13 | 1983-01-23 | За витель | Recirculation valve for formation testers |
| CN202300301U (en) * | 2011-10-25 | 2012-07-04 | 中国石油化工股份有限公司 | Pressure balancing device |
| CN203808981U (en) * | 2014-05-04 | 2014-09-03 | 北京昔光节科贸有限公司 | Nuclear magnetic resonance oil well logging probe pressure balance system |
| CN109113789A (en) * | 2018-10-30 | 2019-01-01 | 山东安达尔信息科技有限公司 | Press multidirectional monitoring that can position drilling hole stress sensor in ground |
| CN110031044A (en) * | 2019-05-17 | 2019-07-19 | 中国地震局地壳应力研究所 | A kind of adaptive borehole stress and strain probe of internal pressure |
-
2021
- 2021-02-09 CN CN202110186624.7A patent/CN112943231B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU991031A1 (en) * | 1980-06-13 | 1983-01-23 | За витель | Recirculation valve for formation testers |
| CN202300301U (en) * | 2011-10-25 | 2012-07-04 | 中国石油化工股份有限公司 | Pressure balancing device |
| CN203808981U (en) * | 2014-05-04 | 2014-09-03 | 北京昔光节科贸有限公司 | Nuclear magnetic resonance oil well logging probe pressure balance system |
| CN109113789A (en) * | 2018-10-30 | 2019-01-01 | 山东安达尔信息科技有限公司 | Press multidirectional monitoring that can position drilling hole stress sensor in ground |
| CN110031044A (en) * | 2019-05-17 | 2019-07-19 | 中国地震局地壳应力研究所 | A kind of adaptive borehole stress and strain probe of internal pressure |
Non-Patent Citations (1)
| Title |
|---|
| 高精度体积式钻孔应变仪及其观测影响研究;白金朋;《中国优秀硕士学位论文全文数据库（电子期刊）》;20131115(第11期);A012-11 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112943231A (en) | 2021-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4536134A (en) | Piston seal access apparatus | |
| CN112943231B (en) | Pressure self-balancing type deep well ground stress monitoring probe | |
| CN105604521A (en) | Multifunctional compression packer rubber sleeve unit experiment device | |
| CN106089181B (en) | A kind of shaft bottom rotating power machine condition detector | |
| US11788405B2 (en) | Downhole oil level detection device | |
| CN117570920A (en) | Recyclable layered settlement measurement device and method | |
| CN211117905U (en) | Economical and practical hydraulic driving mechanism for plug valve | |
| CN203798480U (en) | Measuring device for measuring thrust loading of sliding thrust bearing | |
| CN109184610B (en) | Pressure balancing device of ultra-ten thousand-meter deep well jar | |
| CN205426700U (en) | Differential screw hardness measuring device | |
| CN215726520U (en) | Pressure sensor for oil field logging for preventing pressure damage | |
| CN111220323B (en) | Pressure sensor calibrating device | |
| CN212672140U (en) | Sensor calibration device and supporting mounting tool of swift dismouting of high sensitivity | |
| CN210799335U (en) | High temperature stuffing box sealing gasket leakage detection structure | |
| CN214836307U (en) | Hydraulic underground tension device | |
| CN109707678B (en) | Pressure cylinder, hydraulic impact testing system and method | |
| CN208704942U (en) | A kind of piston-type variable compares pressure sensor | |
| CN112901153A (en) | But reuse type deep well ground stress monitoring probe of repeatedly installing | |
| CN104963912A (en) | Hydraulic cylinder capable of automatically monitoring internal leakage | |
| CN107290098B (en) | A kind of caliper needs liquid measuring device | |
| CN218235116U (en) | Real-time detection device for axial load of bearing and shield machine | |
| CN214465416U (en) | Hydraulic locking pin | |
| CN214997597U (en) | Adjustable eccentric water injection tool | |
| CN112196489B (en) | Pressure compensation rotary sealing structure | |
| CN109882350A (en) | A kind of hydraulic motor plunger lid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |