Probe protection device for in-well exploration

Abstract

The utility model provides a probe protection device for exploration in a well, which comprises an exploration probe, a transmission line arranged at the top of the exploration probe, a scanning section arranged below the exploration probe, a top cover arranged on the outer side of the transmission line, a plurality of uniformly distributed connecting rods arranged on one side of the top cover, and a detachable middle cylinder arranged at one end of each connecting rod. A transparent sleeve is arranged on one side of the middle cylinder, a bottom cover is arranged on one side of the transparent sleeve, the middle cylinder, the transparent sleeve and the bottom cover are coaxially arranged, the transparent sleeve is made of quartz glass and replaces lens glass to bear abrasion, core components of the probe are effectively protected, and the whole device can replace a survey probe to bear loss caused by the complex underground environment. The exploration probe is simple in structure and convenient to use, reduces the risk that the lens glass is scratched and collides with the probe, greatly prolongs the service life of the exploration probe, reduces the maintenance cost, and solves the problems that the lens glass of the probe is easily scratched and the exploration probe is easily collided when the exploration probe is in an exploration well with an uneven inner wall.

Description

Technical Field

[0001] This utility model relates to the field of probe protection, and in particular to a probe protection device for well exploration. Background Technology

[0002] In modern geological exploration and oil extraction, downhole survey technology plays a crucial role. As a key device for acquiring downhole information, the stability of the survey probe directly affects the accuracy and reliability of the survey data. Currently, most survey probes lack specialized protective devices. In actual operations, the downhole environment is complex and variable, especially in exploration wells with uneven inner walls, where the probe lens glass is easily scratched, and the probe itself is susceptible to impacts. Damage to the lens glass leads to blurred images, affecting data acquisition. Frequent impacts further reduce the probe's lifespan, increase maintenance and replacement costs, and severely hinder the efficient conduct of exploration work.

[0003] Therefore, there is an urgent need to design a protective device to effectively protect the exploration probe and ensure its stable operation in harsh downhole environments. Utility Model Content

[0004] The main purpose of this utility model is to provide a probe protection device for well exploration, which solves the problem that the lens glass of the exploration probe is easily scratched and the exploration probe is easily damaged by impacts when it is in an exploration well with an uneven inner wall.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a probe protection device for well exploration, including a exploration probe, a transmission line at the top of the exploration probe, a scanning section at the bottom of the exploration probe, a top cover on the outside of the transmission line, a plurality of evenly distributed connecting rods on one side of the top cover, a detachable intermediate cylinder at one end of the connecting rod, a transparent sleeve on one side of the intermediate cylinder, and a bottom cover on one side of the transparent sleeve.

[0006] The intermediate cylinder, transparent sleeve, and bottom cover are arranged coaxially.

[0007] In the preferred embodiment, the top cover includes a sleeve end, which is coaxially arranged with the outer circle of the survey probe. One side of the sleeve end is provided with a side plate, and the side plate is provided with multiple connecting holes, in which connecting rods are arranged.

[0008] In the preferred embodiment, the top cover is also provided with a through-hole wire groove, which facilitates the quick connection of the top cover from one end.

[0009] A wire-blocking plate is also provided on one side of the cable tray. The wire-blocking plate is used to fit against the transmission line to limit the swing amplitude of the survey probe.

[0010] In the preferred embodiment, both ends of the connecting rod are provided with threaded ends, and a limiting seat is provided at the end near the top cover. The limiting seat is used to abut against the top cover, and a detachable nut is also provided on one side of the limiting seat. The nut is used to lock the top cover.

[0011] The other end of the connecting rod is connected to the intermediate cylinder.

[0012] In the preferred embodiment, the transparent sleeve is made of quartz glass;

[0013] The survey probe at the scanning section has a rotatable scanning mirror inside, and a lens glass is located on the outside of the scanning mirror. A transparent sleeve is placed on the outside of the lens glass to replace the lens glass for wear.

[0014] In the preferred embodiment, the inner circumference of the transparent sleeve is further provided with gasket grooves at both ends, and a sealing ring is provided in the gasket groove. The sealing ring is used to seal the end of the transparent sleeve.

[0015] In the preferred embodiment, a socket groove is provided on one side of the bottom cover for connecting with the survey probe. A second slot is also provided on the outside of the socket groove. A through countersunk hole is provided at the center of the socket groove, and a countersunk screw is provided in the countersunk hole for connecting with the survey probe.

[0016] In the preferred embodiment, the second slot is used to install the transparent sleeve, the inner circle of the middle cylinder is provided with a through hole, the survey probe is placed in the through hole, the end of the middle cylinder facing the bottom cover is also provided with a first slot, and the transparent sleeve is placed between the first slot and the second slot;

[0017] The bottom of the survey probe is also provided with a bottom threaded hole, and the countersunk screw passes through the bottom cover and engages with the bottom threaded hole.

[0018] This utility model provides a probe protection device for well exploration, which has the following advantages: the transparent sleeve is made of quartz glass, which replaces the lens glass to withstand wear and tear, effectively protecting the core components of the probe; the top cover is quickly fitted through the wire groove; the wire-blocking plate restricts the probe's swing, enhancing stability; the detachable intermediate cylinder and bottom cover facilitate installation and disassembly; the sealing design between each component prevents liquid seepage; the entire device can replace the exploration probe to withstand the wear and tear caused by the complex downhole environment, reduce the risk of lens glass scratches and probe impacts, greatly increase the service life of the exploration probe, and reduce maintenance costs. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is an axonometric view of the protective device of this utility model;

[0021] Figure 2 This is an exploded view of the protective device of this utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of the scanning segment of this utility model;

[0023] Figure 4 This is a partial cross-sectional schematic diagram of the transparent sleeve of this utility model;

[0024] Figure 5 This is a schematic diagram illustrating the use of the protective device of this utility model.

[0025] In the diagram: 1. Survey probe; 101. Transmission line; 102. Scanning section; 103. Bottom threaded hole; 104. Scanning mirror; 105. Lens glass; 2. Top cover; 201. Sleeve end; 202. Side plate; 203. Wire groove; 204. Wire blocking plate; 205. Connecting hole; 3. Connecting rod; 301. Threaded end; 302. Nut; 303. Limiting seat; 4. Intermediate cylinder; 401. Connecting threaded hole; 402. Through hole; 403. First slot; 5. Transparent sleeve; 501. Washer groove; 502. Sealing ring; 6. Bottom cover; 601. Countersunk hole; 602. Countersunk screw; 603. Socket groove; 604. Second slot; 7. Bracket; 8. Receiving device. Detailed Implementation

[0026] Example 1

[0027] like Figure 1-5 As shown, a probe protection device for well exploration includes a exploration probe 1, a transmission line 101 at the top of the exploration probe 1, a scanning section 102 below the exploration probe 1, a top cover 2 on the outside of the transmission line 101, a plurality of evenly distributed connecting rods 3 on one side of the top cover 2, a detachable intermediate cylinder 4 at one end of the connecting rod 3, a transparent sleeve 5 on one side of the intermediate cylinder 4, and a bottom cover 6 on one side of the transparent sleeve 5.

[0028] The intermediate cylinder 4, the transparent sleeve 5, and the bottom cover 6 are arranged coaxially.

[0029] In the preferred embodiment, the top cover 2 includes a sleeve end 201, which is coaxially arranged with the outer circle of the survey probe 1. A side plate 202 is provided on one side of the sleeve end 201, and a plurality of connecting holes 205 are provided on the side plate 202. The connecting rod 3 is arranged in the connecting holes 205.

[0030] In the preferred embodiment, the top cover 2 is also provided with a through wire groove 203, which facilitates the quick connection of the top cover 2 from one end;

[0031] A wire-blocking plate 204 is also provided on one side of the cable tray 203. The wire-blocking plate 204 is used to fit with the transmission line 101 to limit the swing amplitude of the survey probe 1.

[0032] In the preferred embodiment, both ends of the connecting rod 3 are provided with threaded ends 301, and the end near the top cover 2 is provided with a limiting seat 303. The limiting seat 303 is used to abut against the top cover 2. A detachable nut 302 is also provided on one side of the limiting seat 303. The nut 302 is used to lock the top cover 2.

[0033] The other end of the connecting rod 3 is connected to the intermediate cylinder 4.

[0034] In the preferred embodiment, the transparent sleeve 5 is made of quartz glass;

[0035] The survey probe 1 at the scanning section 102 is equipped with a rotatable scanning mirror 104 inside. A lens glass 105 is provided on the outside of the scanning mirror 104. A transparent sleeve 5 is arranged on the outside of the lens glass 105 to replace the lens glass 105 for wear.

[0036] In the preferred embodiment, the inner circumference of the transparent sleeve 5 is further provided with gasket grooves 501 at both ends, and sealing rings 502 are provided in the gasket grooves 501. The sealing rings 502 are used to seal the ends of the transparent sleeve 5.

[0037] In the preferred embodiment, a socket groove 603 is provided on one side of the bottom cover 6. The socket groove 603 is used to connect with the survey probe 1. A second slot 604 is also provided on the outside of the socket groove 603. A through countersunk hole 601 is also provided at the center of the socket groove 603. A countersunk screw 602 is provided in the countersunk hole 601. The countersunk screw 602 is used to connect with the survey probe 1.

[0038] In the preferred embodiment, the second slot 604 is used to install the transparent sleeve 5, the inner circle of the intermediate cylinder 4 is provided with a through hole 402, the survey probe 1 is arranged in the through hole 402, the end of the intermediate cylinder 4 facing the bottom cover 6 is also provided with a first slot 403, and the transparent sleeve 5 is arranged between the first slot 403 and the second slot 604.

[0039] The bottom end of the survey probe 1 is also provided with a bottom threaded hole 103, and the countersunk screw 602 passes through the bottom cover 6 and engages with the bottom threaded hole 103.

[0040] The method of using a probe protection device for well exploration is as follows: the intermediate cylinder 4 is sleeved on the outer circumference of the exploration probe 1, the connecting rod 3 is installed in the connecting thread hole 401 on one side of the intermediate cylinder 4, the top cover 2 is sleeved on one end of the exploration probe 1, the connecting hole 205 on the top cover 2 is coaxially sleeved on the connecting rod 3, the top cover 2 abuts against the limiting seat 303, and then a nut 302 is installed on one side of the side plate 202 of the top cover 2 to lock the top cover 2.

[0041] Next, the transparent sleeve 5 is placed on the outside of the scanning section 102. The length of the transparent sleeve 5 exceeds the length of the scanning section 102 to avoid obstructing the lens. One end of the transparent sleeve 5 is connected to the first slot 403 on the intermediate cylinder 4. Finally, the bottom cover 6 is fitted onto the bottom end of the survey probe 1. The second slot 604 on the bottom cover 6 is connected to the transparent sleeve 5. Then, the countersunk screw 602 is passed through the bottom cover and locked into the bottom threaded hole 103 from one side of the bottom cover 6 to complete the installation of the entire protective device.

[0042] When in use, the bracket 7 is set up at the wellhead of the exploration well, the receiving device 8 is placed on one side, and the exploration probe equipped with this protective device is lowered from the bracket 7 into the exploration well. The protective device can prevent the exploration probe from directly colliding with the inner wall and reduce the wear and tear of the exploration probe 1.

[0043] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A probe protection device for well exploration, comprising an exploration probe (1), a transmission line (101) at the top of the exploration probe (1), and a scanning section (102) at the bottom of the exploration probe (1), characterized in that: The transmission line (101) is provided with a top cover (2) on the outside. Multiple evenly distributed connecting rods (3) are provided on one side of the top cover (2). A detachable intermediate cylinder (4) is provided at one end of the connecting rod (3). A transparent sleeve (5) is provided on one side of the intermediate cylinder (4). A bottom cover (6) is provided on one side of the transparent sleeve (5). The intermediate cylinder (4), the transparent sleeve (5), and the bottom cover (6) are arranged coaxially.

2. The probe protection device for well exploration according to claim 1, characterized in that: The top cover (2) includes a sleeve end (201), which is coaxially arranged with the outer circle of the survey probe (1). A side plate (202) is provided on one side of the sleeve end (201), and multiple connecting holes (205) are provided on the side plate (202). The connecting rod (3) is arranged in the connecting hole (205).

3. The probe protection device for well exploration according to claim 2, characterized in that: The top cover (2) is also provided with a through wire groove (203), which facilitates the quick connection of the top cover (2) from one end; A wire-blocking plate (204) is also provided on one side of the cable tray (203). The wire-blocking plate (204) is used to fit with the transmission line (101) to limit the swing amplitude of the survey probe (1).

4. The probe protection device for well exploration according to claim 1, characterized in that: Both ends of the connecting rod (3) are provided with threaded ends (301), and the end near the top cover (2) is provided with a limiting seat (303). The limiting seat (303) is used to abut against the top cover (2). A detachable nut (302) is also provided on one side of the limiting seat (303). The nut (302) is used to lock the top cover (2). The other end of the connecting rod (3) is connected to the intermediate cylinder (4).

5. The probe protection device for well exploration according to claim 1, characterized in that: The transparent sleeve (5) is made of quartz glass; The survey probe (1) at the scanning section (102) is equipped with a rotatable scanning mirror (104) inside. The outer side of the scanning mirror (104) is equipped with a lens glass (105). A transparent sleeve (5) is arranged on the outer side of the lens glass (105) to replace the lens glass (105) for wear.

6. The probe protection device for well exploration according to claim 5, characterized in that: The inner ends of the transparent sleeve (5) are also provided with gasket grooves (501), and sealing rings (502) are provided in the gasket grooves (501). The sealing rings (502) are used to seal the ends of the transparent sleeve (5).

7. The probe protection device for well exploration according to claim 1, characterized in that: The bottom cover (6) has a socket groove (603) on one side. The socket groove (603) is used to connect with the survey probe (1). The outer side of the socket groove (603) is also provided with a second slot (604). The center of the socket groove (603) is also provided with a through countersunk hole (601). The countersunk hole (601) is provided with a countersunk screw (602). The countersunk screw (602) is used to connect with the survey probe (1).

8. The probe protection device for well exploration according to claim 7, characterized in that: The second slot (604) is used to install the transparent sleeve (5). The inner circle of the intermediate cylinder (4) is provided with a through hole (402). The survey probe (1) is placed in the through hole (402). The end of the intermediate cylinder (4) facing the bottom cover (6) is also provided with a first slot (403). The transparent sleeve (5) is placed between the first slot (403) and the second slot (604). The bottom end of the survey probe (1) is also provided with a bottom threaded hole (103), and a countersunk screw (602) passes through the bottom cover (6) and engages with the bottom threaded hole (103).

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