Salt pan underground drill jamming treatment device

Abstract

Compared with the prior art, the salt pan underground drill jamming processing device has the advantages that the problem that a striking piece is matched with a drill rod due to welding deformation can be solved, the salt pan underground drill jamming processing device comprises the striking piece, and the striking piece comprises an outer sleeve body and a balance weight body arranged on the peripheral face of the outer sleeve body. The inner sleeve body is used for being in guide sliding fit with a drill rod, the inner sleeve body is arranged in the outer sleeve body, the outer sleeve body comprises an impact end, and the first end, close to the impact end, of the inner sleeve body is located in the outer sleeve body.

Description

Technical Field

[0001] The utility model relates to the technical field of salt mine drilling, in particular to a downhole stuck drill treatment device in a salt field. Background Technique

[0002] A salt field is a pool built in a flat and sunny place. The salt field is used to store seawater or groundwater with a high salt content in the pool, and then the sun and wind are used to evaporate the water, leaving salt crystals, achieving the purpose of salt production, which is a commonly used salt production method at present.

[0003] Well salt is obtained by drilling a deep well in an underground salt mine with drilling equipment, then injecting fresh water into the well, dissolving the salt in the salt ore layer, pumping out the brine, and evaporating the brine to obtain well salt. The evaporation of the salt can be combined with the salt field.

[0004] At present, the salt production method of setting up a salt field in an area rich in salt mines, then drilling a salt well in the salt field, and evaporating the brine in combination with the salt field to produce well salt is widely applicable.

[0005] During the drilling of a salt well, drilling equipment is required. The drilling equipment includes a drill pipe and a drill bit. The drill pipe drives the drill bit to drill. In the actual drilling process, due to geological and operating factors, downhole stuck drill accidents may occur. At present, there are various ways to deal with stuck drill accidents. For example, the Chinese utility model patent with the application number: CN202321113054X discloses a down - hitting device for simply dealing with stuck drill. It uses a striking part sleeved on the drill pipe, and the striking part can move under external force. When in use, by lifting and dropping the striking part, the striking part falls along the drill pipe under the action of gravity to provide an impact force to the drill bit, so as to loosen the stuck point and solve the problem of stuck drill.

[0006] However, although the above method can effectively deal with stuck drill accidents, it still has the following problems: Since it directly welds the abandoned oil submarine and the oil casing, and there are multiple welded around the oil casing, deformation will occur during welding. After the oil casing deforms, there will be a problem that it cannot be adapted to the drill pipe. When the inner diameter of the oil pipeline is set with a large clearance from the outer diameter of the drill pipe, it can still ensure that the oil pipeline is sleeved around the drill pipe after welding deformation. However, at this time, the oil pipeline and the drill pipe cannot be well guided, and even the oil pipeline will swing to a certain extent. At this time, when the oil pipeline slides at a high speed on the drill pipe, it will cause damage to the surface of the drill pipe. Summary of the Utility Model

[0007] The purpose of the utility model is to solve the above problems and provide a downhole stuck drill treatment device in a salt field.

[0008] To achieve the above object, the technical solution of the present utility model is: a downhole stuck drill treatment device in a salt field, including a striking member. The striking member includes an outer sleeve body and a counterweight body arranged on the outer peripheral surface of the outer sleeve body. It also includes an inner sleeve body for guiding and slidingly cooperating with the drill pipe. The inner sleeve body is arranged inside the outer sleeve body. The outer sleeve body includes an impact end, and the first end of the inner sleeve body close to the impact end is located inside the outer sleeve body.

[0009] Further, the inner sleeve body and the outer sleeve body are detachably and fixedly connected.

[0010] Further, one of the outer sleeve body and the inner sleeve body is provided with a first threaded hole, and the other is provided with a plurality of first through holes corresponding to the plurality of first threaded holes one by one.

[0011] Further, one end of the inner sleeve body away from the impact end is provided with an annular plate. The outer diameter of the annular plate is larger than the outer diameter of the outer sleeve body. The first threaded hole is arranged on the end face of the inner sleeve body away from the impact end, and the first through hole is arranged on the annular plate.

[0012] Further, the annular plate is sleeved on the end of the inner sleeve body. A plurality of second threaded holes are evenly spaced on the outer peripheral surface of the inner sleeve body, and a plurality of second through holes corresponding to the plurality of second threaded holes one by one are arranged on the outer peripheral surface of the annular plate.

[0013] Further, it also includes a lifting ring, and the lifting ring is connected to the inner sleeve body.

[0014] Further, a flange is integrally arranged at the impact end of the outer sleeve body, and the plate surface of the flange is in abutting cooperation with the end of the counterweight body.

[0015] Further, a groove is arranged between the inner peripheral surface and the impact end of the outer sleeve body.

[0016] A downhole stuck drill treatment device in a salt field disclosed by the present utility model has the following beneficial effects compared with the prior art: It can solve the problem of the adaptation between the striking member and the drill pipe caused by welding deformation. It includes a striking member. The striking member includes an outer sleeve body and a counterweight body arranged on the outer peripheral surface of the outer sleeve body. It also includes an inner sleeve body for guiding and slidingly cooperating with the drill pipe. The inner sleeve body is arranged inside the outer sleeve body. The outer sleeve body includes an impact end, and the first end of the inner sleeve body close to the impact end is located inside the outer sleeve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a downhole stuck drill treatment device of the present utility model.

[0018] Figure 2 It is a schematic diagram of the bottom view structure of the inner sleeve body and the annular plate in a downhole stuck drill treatment device of the present utility model.

[0019] Figure 3This is a schematic side view structure diagram of the inner sleeve body and the ring plate in a stuck drill treatment device for salt mine shafts of the present utility model.

[0020] Figure 4 This is a schematic connection structure diagram of the outer sleeve body and the counterweight in a stuck drill treatment device for salt mine shafts of the present utility model.

[0021] Figure 5 This is a schematic top view structure diagram of a stuck drill treatment device for salt mine shafts of the present utility model.

[0022] Figure 6 is Figure 5 The schematic cross-sectional structure diagram at A-A in a stuck drill treatment device for salt mine shafts of the present utility model shown in the figure.

[0023] In the figure: 1. Inner sleeve body; 10. Second threaded hole; 2. Outer sleeve body; 20. Groove; 21. Flange; 22. Counterweight body; 23. First threaded hole; 3. Ring plate; 31. Second through hole; 32. First through hole; 4. Suspension ring. Detailed implementation manners

[0024] Now, the present utility model will be further described in detail with reference to the accompanying drawings. The accompanying drawings are simplified schematic diagrams, which only illustrate the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0025] Please refer to Figures 1-6 , to achieve the above object, the technical solution of the present utility model is: a stuck drill treatment device for salt mine shafts, including a striking member, the striking member includes an outer sleeve body 2 and a counterweight body 22 arranged on the outer peripheral surface of the outer sleeve body 2, and further includes an inner sleeve body 1 for guiding and slidingly cooperating with a drill pipe, the inner sleeve body 1 is arranged inside the outer sleeve body 2, the outer sleeve body 2 includes an impact end, and the first end of the inner sleeve body close to the impact end is located inside the outer sleeve body.

[0026] Specifically, in the actual use process, the inner sleeve body 1 can also be made of petroleum pipelines, the outer sleeve body can be made of large-sized petroleum pipelines, the inner diameter R1 of the outer sleeve body is greater than the outer diameter R2 of the inner sleeve body 1, preferably R1 = R2 + (2 - 3) mm, and the counterweight body 22 can also be made of discarded drill collars and welded to the outer peripheral surface of the outer sleeve body by welding. Through this setting method, the inner sleeve body that directly slides and guides with the drill pipe is not welded, so phase change will not occur, thus avoiding the problem that it cannot be adapted to the drill pipe due to welding deformation, and being able to ensure the fitting clearance between the inner sleeve body and the outer peripheral surface of the drill pipe, and avoiding the phenomenon of swing damage to the drill pipe due to too large a fitting clearance; a fitting clearance of 2 - 3 millimeters is set between the inner diameter of the outer sleeve body and the outer diameter of the inner sleeve body to ensure that the inner sleeve body can still be inserted into the inner part of the outer sleeve body after the outer sleeve body is deformed.

[0027] The downhole stuck pipe treatment device provided by this application has the same working principle as a simple downhole impact device for treating stuck pipes in the background art. By sleeving the inner sleeve body around the drill pipe, pulling the striking member upward and then releasing it, under the gravity of the counterweight 22, the inner sleeve body, and the outer sleeve body, it moves downward. When the impact end of the outer sleeve body 2 contacts the bit of the stuck pipe, an impact force is provided to the bit, and so on, achieving the effect of loosening the stuck point. Refer to Figure 6 , by arranging the first end of the inner sleeve body near the impact end inside the outer sleeve body, the lower end part of the inner sleeve body does not participate in the impact action during operation, so that the deformation of the lower end part of the inner sleeve body caused by impact can be avoided, and the guiding effect between the inner sleeve body and the drill pipe can be ensured.

[0028] Furthermore, as a preferred implementation manner, the inner sleeve body 1 and the outer sleeve body are detachably and fixedly connected.

[0029] Specifically, it can be understood that the inner sleeve body will have sliding friction with the outer peripheral surface of the drill pipe during operation, so wear will occur. The impact end of the outer sleeve body will have deformation and other damages after multiple treatments of the stuck pipe problem. Setting the inner sleeve body and the outer sleeve body as detachably and fixedly connected is convenient for separating the two and replacing them.

[0030] Furthermore, one of the outer sleeve body and the inner sleeve body is provided with a first threaded hole 23, and the other is provided with a plurality of first through holes 32 corresponding to the plurality of first threaded holes 23 one by one. As a specific implementation manner, refer to Figures 1-5 , a ring plate 3 is arranged at the end of the inner sleeve body. The inner sleeve body and the outer sleeve body are inserted and matched. The ring plate can abut against the end of the outer sleeve body far from the impact end. A plurality of first through holes are arranged on the ring plate, and a plurality of first threaded holes are arranged at the end of the outer sleeve body. Thus, the ring plate and the outer sleeve body can be locked and connected by using a locking screw to pass through the first through hole and threadedly lock it to the first threaded hole, thereby realizing the detachable and fixed connection between the inner sleeve body and the outer sleeve body. As a preferred implementation manner, the first through hole is a counterbore hole.

[0031] Furthermore, specifically, a ring plate 3 is arranged at one end of the inner sleeve body 1 far from the impact end. The outer diameter of the ring plate is larger than the outer diameter of the outer sleeve body. The first threaded hole is arranged on the end face of the inner sleeve body far from the impact end, and the first through hole 32 is arranged on the ring plate 3. As a preferred implementation manner, the ring plate 3 is sleeved on the outer peripheral surface of the inner sleeve body 2. A second threaded hole 10 is arranged on the side wall of the inner sleeve body, and a second through hole 31 is arranged on the outer peripheral surface of the ring plate. Through this setting method, the ring plate and the inner sleeve body can be fixedly connected by locking the screw to pass through the second through hole 31 and threadedly locking it into the second threaded hole. In this way, the ring plate can be detachably and fixedly connected to the inner sleeve body. When replacing the inner sleeve body, the ring plate can be disassembled and reused. By arranging the ring plate.

[0032] Further, the ring plate 3 is sleeved on the end of the inner sleeve body. A plurality of second threaded holes 10 are evenly spaced on the outer peripheral surface of the inner sleeve body. A plurality of second through holes 31 corresponding to the plurality of second threaded holes 10 are provided on the outer peripheral surface of the ring plate 3.

[0033] Further, as a specific implementation manner, referring to Figures 1-6 , it further includes a lifting ring 4, and the lifting ring 4 is connected to the inner sleeve body 1. Specifically, a third threaded hole is provided on the ring plate 3, and a stud welded to the lifting ring 4 is in threaded connection and cooperation with the third threaded hole, so that the lifting ring is detachably and fixedly connected to the ring plate. The function of the lifting ring here is the same as that of the lifting ring in a simple sticking treatment jar in the background art, and details will not be repeated here.

[0034] Further, as a preferred implementation manner, referring to Figure 5 , Figure 6 , a flange 21 is integrally provided at the impact end of the outer sleeve body 2, and the plate surface of the flange 21 is in abutting cooperation with the end of the counterweight 22.

[0035] Specifically, the flange may be an annular plate-like structure welded to the end of the outer sleeve body. By providing the flange 21 and making the plate surface of the flange in abutting cooperation with the end of the counterweight 22, on the one hand, the counterweight can be axially limited by the flange 21 during the welding of the counterweight, which is convenient for welding. On the other hand, during the treatment of sticking, the counterweight is in direct contact with the flange, so that the inertial impact can be directly transmitted through the flange, reducing the risk of the counterweight being welded off.

[0036] Further, a groove 20 is provided between the inner peripheral surface and the impact end of the outer sleeve body 2. Specifically, it can be understood that after the impact end impacts the drill bit, the impact end will be deformed, so that the impact end will be impacted and deformed. After the impact deformation, the inner sleeve port position of the outer sleeve body will be necked down. When the wall thickness of the inner sleeve body is relatively thin, there is still a risk of contacting the outer peripheral surface of the drill pipe when the outer sleeve port position is necked down. When the necking contacts the outer peripheral surface of the drill pipe, it will damage the outer peripheral surface of the drill pipe. By providing the groove 20, the size of the inner sleeve port of the impact end is increased, thereby reducing the risk of contacting the outer peripheral surface of the drill pipe due to necking down.

[0037] Obviously, the above embodiments are merely examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A stuck pipe treatment device in the salt mine shaft, comprising a striking member, the striking member including an outer sleeve (2) and a counterweight (22) arranged on the outer peripheral surface of the outer sleeve (2), characterized in that, It further includes an inner sleeve body (1) for guiding and slidingly cooperating with the drill pipe. The inner sleeve body (1) is arranged inside the outer sleeve body (2). The outer sleeve body (2) includes an impact end, and the first end of the inner sleeve body close to the impact end is located inside the outer sleeve body.

2. The downhole stuck pipe treatment device in a salt field according to claim 1, wherein The inner sleeve body (1) is detachably and fixedly connected to the outer sleeve body.

3. The downhole stuck pipe treatment device in a salt mine according to claim 2, characterized in that, One of the outer sleeve body and the inner sleeve body is provided with a first threaded hole (23), and the other is provided with a plurality of first through holes (32) corresponding to the plurality of first threaded holes (23) one by one.

4. The downhole sticking treatment device in a salt mine according to claim 3, wherein One end of the inner sleeve body (1) away from the impact end is provided with a ring plate (3). The outer diameter of the ring plate is larger than the outer diameter of the outer sleeve body. The first threaded hole is arranged on the end face of the inner sleeve body away from the impact end, and the first through hole (32) is arranged on the ring plate (3).

5. The downhole sticking treatment device in a salt mine according to claim 4, wherein The ring plate (3) is sleeved on the end of the inner sleeve body. A plurality of second threaded holes (10) are evenly spaced on the outer peripheral surface of the inner sleeve body. A plurality of second through holes (31) corresponding to the plurality of second threaded holes (10) are arranged on the outer peripheral surface of the ring plate (3).

6. The downhole sticking treatment device in a salt mine according to claim 1, characterized in that, It further includes a lifting ring (4), and the lifting ring (4) is connected to the inner sleeve body (1).

7. A salt mine downhole stuck pipe treatment device according to claim 1, characterized in that, A flange (21) is integrally arranged at the impact end of the outer sleeve body (2). The plate surface of the flange (21) is in abutting cooperation with the end of the counterweight body (22).

8. A salt mine downhole stuck pipe treatment device according to claim 1, characterized in that A groove (20) is arranged between the inner peripheral surface and the impact end of the outer sleeve body (2).

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