A sealing probe structure

Abstract

The present invention discloses a sealing probe structure, which solves the technical problem of low sealing success rate. The device includes: a sealing probe for sealing with the well wall; a hydraulic seat for connecting with external instruments; a sliding cylinder sleeve, slidably connected in the hydraulic seat; a support seat, arranged at one end of the sliding cylinder sleeve facing the sealing probe; a support column, arranged at the center position of the sealing probe facing the support seat; a universal ball, integrally connected to the end of the support column, and forming a universal rotation fit with the support seat, so that the sealing probe can swing and rotate to achieve the adjustment of the sealing probe's own angle; a sealing channel, arranged on the hydraulic seat, and connected with the sliding cylinder sleeve, and the port of the sealing channel is used to connect with the external sealing pipeline; a sealing flow channel, which passes through the support column and the universal ball, and connects the sealing probe with the sliding cylinder sleeve. The present invention can improve the sealing success rate, reduce the risk of damage to the rubber sealing ring, and improve the sealing operation time.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum well logging, and particularly relates to a setting probe structure. Background Art

[0002] Marine oil and gas resources are not only abundant, but modern science and technology have also enabled them to be developed with great capabilities.

[0003] The setting probe is a crucial component of oil well instruments, ensuring a seal against the wellbore. Existing setting probe structures typically include a hydraulic mechanism and a setting probe. The setting probe is fixed to the telescopic end of the hydraulic mechanism, which propels the setting probe in a direction perpendicular to the instrument's axial direction.

[0004] Because the setting probe's thrust direction is fixed, meaning it can't adjust its angle, a relatively high thrust can ensure successful setting of the probe to a certain extent if the instrument deflects slightly. However, the success rate is only 50%-60%. Furthermore, uneven force on the setting probe in this situation can damage the rubber setting ring. If the instrument deflects significantly, even with thrust, the probe can't be set successfully. In this case, the only option is to readjust the instrument's position and attempt to set the probe multiple times, which is time-consuming and labor-intensive.

[0005] It can be seen from this that the setting probe mechanism in the relevant technology has problems such as low setting success rate, easy damage to the setting rubber, and impact on the timeliness of the setting operation, which need to be improved. Summary of the Invention

[0006] In order to solve all or part of the above problems, the purpose of the present invention is to provide a setting probe structure, which can improve the setting success rate, reduce the risk of damage to the rubber setting ring, and improve the timeliness of the setting operation.

[0007] The present invention provides a setting probe structure, comprising:

[0008] Setting probe, used for setting seal with well wall;

[0009] Hydraulic seat, used to connect with external instruments;

[0010] Sliding cylinder sleeve, slidingly connected in the hydraulic seat;

[0011] A support seat is provided at one end of the sliding cylinder sleeve facing the setting probe;

[0012] A support column is provided at a central position of the setting probe on a side facing the support seat;

[0013] A universal ball is integrally formed and connected to the end of the support column, and forms a universal rotation fit with the support seat, so that the setting probe can swing and rotate to achieve the adjustment of the setting probe's own angle;

[0014] a setting channel, provided on the hydraulic seat and communicated with the sliding cylinder sleeve, and a port of the setting channel is used to be connected to an external setting pipeline;

[0015] The setting flow channel passes through the support column and the universal ball and connects the setting probe with the sliding cylinder sleeve.

[0016] Optionally, a limiting groove is provided at the center position of the sealing probe toward one side of the support seat, the end of the sliding cylinder sleeve is located in the limiting groove, and a limiting gap is formed between the outer wall of the sliding cylinder sleeve and the inner wall of the limiting groove to limit the swing amplitude of the sealing probe.

[0017] Optionally, the support base includes:

[0018] A supporting sleeve, coaxially arranged in the sliding cylinder sleeve;

[0019] a support ring, coaxially disposed in the support sleeve;

[0020] A limiting ring is coaxially arranged in the supporting sleeve, and the universal ball is located between the supporting ring and the limiting ring;

[0021] A rotating spherical surface is provided on the support ring and is in close contact with the spherical surface of the universal ball on a side away from the support column;

[0022] The limiting spherical surface is arranged on the limiting ring and is tightly fitted with the spherical surface of the universal ball on the side facing the supporting column.

[0023] Optionally, an anti-rotation pin is threadedly connected to the support sleeve, and an anti-rotation groove is provided on the universal ball. The end of the anti-rotation pin is inserted into the anti-rotation groove, and an anti-rotation gap is formed between the outer wall of the anti-rotation pin and the inner wall of the anti-rotation groove to limit the rotation angle of the universal ball, thereby limiting the rotation angle of the sealing probe.

[0024] Optionally, sealing rings are respectively provided between the universal ball and the support ring, between the support ring and the support sleeve, and between the support sleeve and the sliding cylinder sleeve.

[0025] Optionally, the setting probe includes:

[0026] A probe base is connected to an end of the support column away from the universal ball;

[0027] A setting groove is provided on a side of the probe base away from the sliding cylinder sleeve;

[0028] A rubber setting ring is fixed to the edge of the probe base away from the sliding cylinder sleeve and is used to press against the well wall;

[0029] One end of the support column away from the universal ball passes through the probe base and is located in the setting groove. A filter screen is provided at the notch position of the setting groove to filter the mud.

[0030] Optionally, a filter cover is provided at the bottom of the setting groove, and the end of the support column away from the universal ball is located on the inner side of the filter cover.

[0031] Optionally, the mesh size of the filter cover is smaller than the mesh size of the filter net.

[0032] Optionally, the hydraulic seat includes:

[0033] Mounting base for connecting to external instruments;

[0034] A supporting cylinder sleeve, threadedly connected to the mounting base;

[0035] A receiving column is coaxially arranged in the supporting cylinder sleeve and is integrally connected to the mounting base, an annular hydraulic oil chamber is formed between the receiving column and the supporting cylinder sleeve, the sliding cylinder sleeve is slidably matched with the hydraulic oil chamber, and a first oil chamber is formed between one end of the sliding cylinder sleeve and the hydraulic oil chamber, and a second oil chamber is formed between the other end of the sliding cylinder sleeve and the hydraulic oil chamber;

[0036] a hydraulic channel, provided on the mounting base and communicating with the first oil chamber and the second oil chamber respectively, and a port of the hydraulic channel being used for connecting to an external hydraulic pipeline;

[0037] The anti-rotation portion is arranged between the receiving column and the sliding cylinder sleeve and is used to limit the rotation of the sliding cylinder sleeve relative to the receiving column.

[0038] Optionally, the anti-rotation portion includes:

[0039] A rotation-stopping cylinder sleeve is coaxially arranged in the sliding cylinder sleeve and is in sliding engagement with the receiving column;

[0040] a rotation-stop groove, provided on the inner side wall of the rotation-stop cylinder sleeve, wherein the length direction of the rotation-stop groove is parallel to the axial direction of the rotation-stop cylinder sleeve;

[0041] A stop ring, fixed to the end of the receiving column via a locking nut;

[0042] The anti-rotation block is fixed on the anti-rotation ring and slidingly cooperates with the anti-rotation groove.

[0043] It can be seen from the above technical solution that the setting probe structure provided by the present invention has the following advantages:

[0044] This device enables the setting probe's own angle to be adjusted, that is, the setting probe can adjust its posture by itself under the probe's pushing force and the reaction force of the well wall, thereby achieving the setting seal of the setting probe on the well wall, eliminating the impact of unsuccessful setting caused by the instrument's lateral deviation, effectively improving the setting success rate, reducing the risk of damage to the rubber setting ring, and improving the time efficiency of the setting operation.

[0045] Other features and advantages of the present invention will be set forth in the description that follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation to the technical solution of the present invention.

[0047] Figure 1 This is a front view of the setting probe structure in an embodiment of the present invention;

[0048] Figure 2 is a cross-sectional view of a setting probe structure in an embodiment of the present invention;

[0049] Figure 3 is a cross-sectional view of a setting probe in an embodiment of the present invention;

[0050] Figure 4 A cross-sectional view of a support base according to an embodiment of the present invention;

[0051] Figure 5 This is a top view of the setting probe structure in an embodiment of the present invention;

[0052] Figure 6 A cross-sectional view of a hydraulic seat according to an embodiment of the present invention;

[0053] Figure 7 2 is a cross-sectional view of a rotation-stopping portion in an embodiment of the present invention.

[0054] Description of reference numerals:

[0055] 1. Setting probe; 101. Probe base; 102. Setting groove; 103. Rubber setting ring; 104. Filter screen; 105. Filter cover; 106. Limiting ring; 107. Step ring; 2. Hydraulic seat; 201. Mounting base; 202. Support cylinder sleeve; 203. Receiver column; 204. Hydraulic oil chamber; 205. First oil chamber; 206. Second oil chamber; 207. Hydraulic channel; 3. Sliding cylinder sleeve; 4. Support seat; 401. Support sleeve; 402. Support ring; 403. Limiting ring Ring; 404, rotating spherical surface; 405, limiting spherical surface; 406, positioning ring; 407, limiting snap ring; 408, locking snap ring; 5, support column; 6, universal ball; 7, setting channel; 8, setting flow channel; 9, anti-rotation pin; 10, anti-rotation groove; 11, anti-rotation gap; 12, limiting groove; 13, limiting gap; 14, sealing ring; 15, anti-rotation part; 151, anti-rotation cylinder sleeve; 152, anti-rotation groove; 153, anti-rotation ring; 154, locking nut; 155, anti-rotation block; 16, sealing ring. DETAILED DESCRIPTION

[0056] To make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other in any manner.

[0057] like Figure 1-Figure 7 The figure shows an embodiment of the present invention, which discloses a setting probe structure, including a setting probe 1, a hydraulic seat 2 and a sliding cylinder sleeve 3. The setting probe 1 is used for setting with the well wall, the hydraulic seat 2 is used for connecting with an external instrument, and the sliding cylinder sleeve 3 is used for controlling the setting probe 1 to perform telescopic movement perpendicular to the axial direction of the instrument.

[0058] In one embodiment, Figure 1 、 Figure 2 、 Figure 3 As shown, a support seat 4 is provided at one end of the sliding cylinder sleeve 3 facing the setting probe 1, and a support column 5 is provided at the center position of the side of the setting probe 1 facing the support seat 4. A universal ball 6 is integrally connected to one end of the support column 5 facing the support seat 4, and the universal ball 6 forms a universal rotation fit with the support seat 4, so that the setting probe 1 can swing and rotate, thereby realizing the adjustment of the angle of the setting probe 1 itself.

[0059] In one embodiment, Figure 2 、 Figure 3 As shown, the hydraulic seat 2 is provided with a setting channel 7, which communicates with the sliding cylinder sleeve 3. The port of the setting channel 7 is used to connect to an external setting pipeline. Simultaneously, a setting flow channel 8 is provided through the support column 5 and the universal ball 6, connecting the setting probe 1 with the sliding cylinder sleeve 3.

[0060] Since the setting probe 1 can swing and rotate, when the sliding cylinder sleeve 3 drives the setting probe 1 to extend, the setting probe 1 can adjust the probe posture by itself under the probe pushing force and the reaction force of the well wall, thereby realizing the setting seal of the setting probe 1 on the well wall, eliminating the influence of unsuccessful setting caused by lateral deviation of the instrument, effectively improving the setting success rate, reducing the risk of damage to the rubber setting ring 103, and improving the time efficiency of the setting operation.

[0061] In one embodiment, Figure 3 、 Figure 4 As shown, the support seat 4 includes a support sleeve 401, a support ring 402 and a limit ring 403. The support sleeve 401 is coaxially arranged at one end of the sliding cylinder sleeve 3 facing the sealing probe 1. The support ring 402 and the limit ring 403 are coaxially arranged in the support sleeve 401 respectively. The universal ball 6 is located between the support ring 402 and the limit ring 403. The inner diameters of the support ring 402 and the limit ring 403 are respectively smaller than the outer diameter of the universal ball 6 to achieve the limitation of the universal ball 6.

[0062] In one embodiment, Figure 3 、 Figure 4 As shown, a rotating spherical surface 404 is provided on the support ring 402, and a limiting spherical surface 405 is provided on the limiting ring 403. The spherical surface of the universal ball 6 away from the support column 5 is tightly fitted with the rotating spherical surface 404, and the spherical surface of the universal ball 6 facing the support column 5 is tightly fitted with the limiting spherical surface 405, so as to improve the guiding effect and enable the universal ball 6 to rotate smoothly.

[0063] In one embodiment, Figure 3 、 Figure 4 As shown, an anti-rotation pin 9 is threadedly connected to the support sleeve 401, and an anti-rotation groove 10 is provided on the universal ball 6. The end of the anti-rotation pin 9 is inserted into the anti-rotation groove 10, and an anti-rotation gap 11 is formed between the outer wall of the anti-rotation pin 9 and the inner wall of the anti-rotation groove 10 to limit the rotation angle of the universal ball 6, thereby limiting the rotation angle of the setting probe 1.

[0064] In one embodiment, Figure 3 、 Figure 4 As shown, a limiting groove 12 is provided at the center position of the sealing probe 1 facing the support seat 4, the end of the sliding cylinder sleeve 3 is located in the limiting groove 12, and a limiting gap 13 is formed between the outer wall of the sliding cylinder sleeve 3 and the inner wall of the limiting groove 12 to limit the swing amplitude of the sealing probe 1.

[0065] Because the swing and rotational ranges of the setting probe 1 are limited, the extended state of the setting probe 1 is guaranteed to be stable, which facilitates the alignment of the setting probe 1 with the wellbore wall. Furthermore, the setting probe 1 can quickly adapt to the wellbore wall, improving operational efficiency. This design also ensures smooth retraction of the setting probe 1, reducing the risk of the setting probe 1 not being fully retracted and preventing the instrument from getting stuck, thereby improving operational stability.

[0066] In this embodiment, two anti-rotation pins 9 and two anti-rotation grooves 10 are provided, and the two anti-rotation pins 9 and two anti-rotation grooves 10 are symmetrically distributed along the axis of the support sleeve 401 to improve the retaining effect. Of course, in other embodiments, three anti-rotation pins 9 and three anti-rotation grooves 10 can also be provided, and the three anti-rotation pins 9 and three anti-rotation grooves 10 can be distributed at 120° intervals. These examples are not listed here.

[0067] In one embodiment, Figure 3 、 Figure 4 As shown, support ring 402 is threadedly connected to support sleeve 401. A positioning ring 406 is integrally formed on the end of support ring 402 facing the setting probe 1. Support ring 402 presses universal ball 6 against limiting spherical surface 405 of limiting ring 403, with limiting ring 403 and positioning ring 406 engaging and limiting each other. Simultaneously, a limiting snap ring 407 is snap-fitted onto the side of support sleeve 401 facing away from the setting probe 1. This snap ring 407 compresses support ring 402, preventing it from retreating and ensuring a stable connection between support ring 402 and support sleeve 401.

[0068] In one embodiment, Figure 3 、 Figure 4 As shown, the support sleeve 401 is threadedly connected to the sliding cylinder sleeve 3, and the sliding cylinder sleeve 3 is snap-fitted with a locking ring 408 at one end facing the sealing probe 1, and the locking ring 408 presses the support sleeve 401 to prevent the support sleeve 401 from retreating, thereby ensuring the connection stability between the support sleeve 401 and the sliding cylinder sleeve 3.

[0069] In one embodiment, Figure 3 、 Figure 4 As shown, sealing rings 14 are respectively provided between the universal ball 6 and the support ring 402 , between the support ring 402 and the support sleeve 401 , and between the support sleeve 401 and the sliding cylinder sleeve 3 to ensure the sealing effect between the two components.

[0070] In one embodiment, Figure 3 、 Figure 5As shown, the sealing probe 1 includes a probe base 101, a sealing groove 102 and a rubber sealing ring 103. The probe base 101 is connected to the end of the support column 5 away from the universal ball 6. The sealing groove 102 is arranged on the side of the probe base 101 away from the sliding cylinder sleeve 3. The rubber sealing ring 103 is fixed at the edge position of the probe base 101 away from the sliding cylinder sleeve 3 and is used to press against the well wall. The sealing groove 102 is located on the inner side of the rubber sealing ring 103.

[0071] In one embodiment, Figure 3 、 Figure 5 As shown, the end of the support column 5 away from the universal ball 6 passes through the probe base 101 and is fixedly connected to it. The end of the setting probe 1 away from the universal ball 6 is located in the setting groove 102. A filter screen 104 is installed at the notch of the setting groove 102 to filter the mud. A filter cover 105 is installed at the bottom of the setting groove 102, and the end of the support column 5 away from the universal ball 6 is located inside the filter cover 105 to filter the mud again. The mesh size of the filter cover 105 is smaller than that of the filter screen 104 to ensure effective filtering.

[0072] When the rubber setting ring 103 contacts the wellbore wall, the mud inside the rubber setting ring 103 enters the setting groove 102. At this point, the filter screen 104 performs a primary filtration on the mud. Subsequently, the mud in the setting groove 102 enters the setting channel 7. At this point, the filter cover 105 performs a secondary filtration on the mud. This dual filtration of coarse and fine meshes effectively prevents large mud particles from clogging the mesh and pipelines, thereby improving the operational stability of the setting probe structure.

[0073] In one embodiment, Figure 3 、 Figure 5 As shown, a retaining ring 106 is engaged at the notch of the setting groove 102, and the retaining ring 106 compresses and secures the filter 104, which means that the filter 104 can be cleaned and replaced separately. Furthermore, a step ring 107 is provided at the bottom of the setting groove 102. The step ring 107 is integrally formed with the probe base 101, and the filter cover 105 is threadedly connected to the step ring 107. This means that the filter cover 105 can be cleaned and replaced separately, reducing maintenance costs.

[0074] In one embodiment, Figure 6 、 Figure 7As shown, the hydraulic seat 2 includes a mounting base 201, a supporting cylinder sleeve 202 and a receiving column 203. The mounting base 201 is used to connect to an external instrument. The supporting cylinder sleeve 202 is threadedly connected to the mounting base 201. The receiving column 203 is coaxially arranged in the supporting cylinder sleeve 202 and is integrally connected to the mounting base 201. At the same time, the sliding cylinder sleeve 3 is located between the supporting cylinder sleeve 202 and the receiving column 203.

[0075] In one embodiment, Figure 6 As shown, an annular hydraulic oil chamber 204 is formed between the receiving column 203 and the supporting cylinder sleeve 202. The sliding cylinder sleeve 3 slides in the hydraulic oil chamber 204. A first oil chamber 205 is formed between one end of the sliding cylinder sleeve 3 and the hydraulic oil chamber 204, and a second oil chamber 206 is formed between the other end of the sliding cylinder sleeve 3 and the hydraulic oil chamber 204. A hydraulic channel 207 is provided on the mounting base 201. The hydraulic channel 207 is connected to the first oil chamber 205 and the second oil chamber 206 respectively, and the port of the hydraulic channel 207 is used to connect to an external hydraulic pipeline.

[0076] When the setting probe 1 needs to be retracted, the external hydraulic mechanism delivers hydraulic oil through one of the hydraulic channels 207 into the first oil chamber 205. At this point, the sliding cylinder sleeve 3, under the action of the hydraulic oil, drives the setting probe 1 toward the instrument. Simultaneously, the hydraulic oil in the second oil chamber 206 flows back into the external hydraulic mechanism through the other hydraulic channel 207. Similarly, when the setting probe 1 needs to be extended, the external hydraulic mechanism delivers hydraulic oil through one of the hydraulic channels 207 into the second oil chamber 206. At this point, the sliding cylinder sleeve 3, under the action of the hydraulic oil, drives the setting probe 1 away from the instrument. Simultaneously, the hydraulic oil in the first oil chamber 205 flows back into the external hydraulic mechanism through the other hydraulic channel 207.

[0077] In one embodiment, Figure 6 、 Figure 7 As shown, a rotation-stopping portion 15 is provided between the receiving column 203 and the sliding cylinder sleeve 3 , and the rotation-stopping portion 15 is used to limit the rotation of the sliding cylinder sleeve 3 relative to the receiving column 203 to avoid the problem of rotation of the sliding cylinder sleeve 3 during the extension and retraction process.

[0078] In one embodiment, Figure 6 、 Figure 7 As shown, the anti-rotation portion 15 includes an anti-rotation cylinder sleeve 151 coaxially fixed within the sliding cylinder sleeve 3. The anti-rotation cylinder sleeve 151 slides with the receiving column 203. The inner sidewall of the anti-rotation cylinder sleeve 151 is provided with an anti-rotation groove 152, and the length direction of the anti-rotation groove 152 is parallel to the axial direction of the anti-rotation cylinder sleeve 151. At the same time, the end of the receiving column 203 is fixedly connected to the anti-rotation ring 153 via a locking nut 154. The anti-rotation block 155 is fixedly connected to the anti-rotation ring 153, and the anti-rotation block 155 slides with the anti-rotation groove 152.

[0079] In this embodiment, there are four stop blocks 155 and four stop grooves 152, and the four stop blocks 155 and four stop grooves 152 are arranged at 90 degrees. Of course, in other embodiments, there can be three or five stop blocks 155 and four stop grooves 152, which are not listed here.

[0080] In one embodiment, Figure 6 、 Figure 7 As shown, sealing rings 16 are respectively provided between the support cylinder sleeve 202 and the sliding cylinder sleeve 3, between the sliding cylinder sleeve 3 and the anti-rotation cylinder sleeve 151, and between the anti-rotation cylinder sleeve 151 and the receiving column 203 to achieve a sealed fit between the two components. In this embodiment, there are five sealing rings 16, which are fixedly embedded in the inner sidewall of the support cylinder sleeve 202, the inner and outer sidewalls of the sliding cylinder sleeve 3, and the inner and outer sidewalls of the anti-rotation cylinder sleeve 151 to ensure a good sealing effect.

[0081] From the above process, it can be seen that the use of this device has the following advantages:

[0082] (1) The sealing probe 1 has universal rotation capability, so that during the sealing process of pressure measurement and sampling operations, the sealing probe 1 can automatically adjust the probe posture according to the probe pushing force and the reaction force of the well wall, so as to achieve the sealing of the probe on the well wall and eliminate the influence of unsuccessful sealing caused by the lateral deviation of the instrument.

[0083] (2) The sealing probe 1 can quickly form abutment with the well wall, which satisfies the requirement of only one sealing operation to achieve smooth sealing to the greatest extent, thereby improving the sealing success rate, reducing the risk of wear of the rubber sealing ring 103, and improving the operation time efficiency.

[0084] (3) The sealing probe 1 has a limiting structure to prevent the sealing probe 1 from excessive rotation and swinging, which can not only ensure the stability of the probe after it is extended, but also ensure that the probe can be smoothly retracted into the instrument.

[0085] (4) The sealing probe 1 has a double filter of coarse and fine mesh, which can better prevent large particles of mud impurities from clogging the filter screen and pipeline, so as to ensure the normal use of the sealing probe structure.

[0086] It should be noted that, unless otherwise specified, the technical or scientific terms used in the present invention should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0087] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present invention, "plurality" means more than two, unless otherwise specifically defined.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A setting probe structure, characterized in that: include: A setting probe (1), used for setting the seal with the well wall; A hydraulic seat (2), used for connecting with external instruments; A sliding cylinder sleeve (3) is slidably connected to the hydraulic seat (2); A support seat (4) is provided at one end of the sliding cylinder sleeve (3) facing the setting probe (1); A support column (5) is provided at a central position of the setting probe (1) on a side facing the support seat (4); A universal ball (6) is integrally formed and connected to the end of the support column (5), and forms a universal rotation fit with the support seat (4), so that the setting probe (1) can swing and rotate, thereby achieving adjustment of the angle of the setting probe (1); A setting channel (7) is provided on the hydraulic seat (2) and is in communication with the sliding cylinder sleeve (3), and a port of the setting channel (7) is used for connecting to an external setting pipeline; A setting flow channel (8) passes through the support column (5) and the universal ball (6) and connects the setting probe (1) with the sliding cylinder sleeve (3); The support seat (4) comprises: A supporting sleeve (401) is coaxially arranged in the sliding cylinder sleeve (3); A support ring (402) is coaxially arranged in the support sleeve (401); A limiting ring (403) is coaxially arranged in the supporting sleeve (401), and the universal ball (6) is located between the supporting ring (402) and the limiting ring (403); A rotating spherical surface (404) is provided on the support ring (402) and is in close contact with the spherical surface of the universal ball (6) on the side away from the support column (5); A limiting spherical surface (405) is provided on the limiting ring (403) and is in close contact with the spherical surface of the universal ball (6) facing the support column (5); An anti-rotation pin (9) is threadedly connected to the support sleeve (401), and an anti-rotation groove (10) is provided on the universal ball (6). The end of the anti-rotation pin (9) is inserted into the anti-rotation groove (10), and an anti-rotation gap (11) is formed between the outer wall of the anti-rotation pin (9) and the inner wall of the anti-rotation groove (10) to limit the rotation angle of the universal ball (6), thereby limiting the rotation angle of the sealing probe (1).

2. The setting probe structure according to claim 1, characterized in that: A limiting groove (12) is provided at a central position of the sealing probe (1) on one side facing the support seat (4), an end portion of the sliding cylinder sleeve (3) is located in the limiting groove (12), and a limiting gap (13) is formed between the outer side wall of the sliding cylinder sleeve (3) and the inner side wall of the limiting groove (12) to limit the swing amplitude of the sealing probe (1).

3. The setting probe structure according to claim 1, characterized in that: Sealing rings (14) are respectively provided between the universal ball (6) and the support ring (402), between the support ring (402) and the support sleeve (401), and between the support sleeve (401) and the sliding cylinder sleeve (3).

4. The setting probe structure according to claim 1, characterized in that: The setting probe (1) comprises: A probe base (101) is connected to an end of the support column (5) away from the universal ball (6); A setting groove (102) is provided on a side of the probe base (101) away from the sliding cylinder sleeve (3); A rubber sealing ring (103) is fixed to the edge of the probe base (101) away from the sliding cylinder sleeve (3) and is used to press against the well wall; One end of the support column (5) away from the universal ball (6) passes through the probe base (101) and is located in the sealing groove (102). A filter screen (104) is provided at the notch position of the sealing groove (102) to filter the mud.

5. The setting probe structure according to claim 4, characterized in that: A filter cover (105) is provided at the bottom of the setting groove (102), and one end of the support column (5) away from the universal ball (6) is located on the inner side of the filter cover (105).

6. The setting probe structure according to claim 5, characterized in that: The mesh size of the filter cover (105) is smaller than the mesh size of the filter screen (104).

7. The setting probe structure according to claim 1, characterized in that: The hydraulic seat (2) comprises: A mounting base (201) for connecting to an external instrument; A supporting cylinder sleeve (202) is threadedly connected to the mounting base (201); A receiving column (203) is coaxially arranged in the supporting cylinder sleeve (202) and is integrally connected to the mounting base (201); an annular hydraulic oil chamber (204) is formed between the receiving column (203) and the supporting cylinder sleeve (202); the sliding cylinder sleeve (3) is in sliding cooperation with the hydraulic oil chamber (204); a first oil chamber (205) is formed between one end of the sliding cylinder sleeve (3) and the hydraulic oil chamber (204); and a second oil chamber (206) is formed between the other end of the sliding cylinder sleeve (3) and the hydraulic oil chamber (204); a hydraulic channel (207) provided on the mounting base (201) and communicating with the first oil chamber (205) and the second oil chamber (206) respectively, and a port of the hydraulic channel (207) being used for connecting to an external hydraulic pipeline; The anti-rotation portion (15) is arranged between the receiving column (203) and the sliding cylinder sleeve (3) and is used to limit the rotation of the sliding cylinder sleeve (3) relative to the receiving column (203).

8. The setting probe structure according to claim 7, characterized in that: The anti-rotation portion (15) comprises: A rotation-stopping cylinder sleeve (151) is coaxially arranged in the sliding cylinder sleeve (3) and is in sliding engagement with the receiving column (203); A rotation-stop groove (152) is provided on the inner side wall of the rotation-stop cylinder sleeve (151), and the length direction of the rotation-stop groove (152) is parallel to the axial direction of the rotation-stop cylinder sleeve (151); A stop ring (153) is fixed to the end of the receiving column (203) via a locking nut (154); The anti-rotation block (155) is fixed on the anti-rotation ring (153) and is slidably matched with the anti-rotation groove (152).

Images