Auxiliary sleeve suspension nipple for petroleum drilling operation

Abstract

The utility model provides an auxiliary casing suspension pup joint for petroleum drilling operation, which is characterized by comprising an upper suspension part, a lower suspension part and a mounting part, the upper suspension part is detachably connected with the lower suspension part through the mounting part, a through hole is arranged in the middle of the upper suspension part, a plurality of positioning insertion holes are uniformly distributed on the inner side of the surface of one end of the upper suspension part, and the through hole is communicated with the through hole. A plurality of mounting holes A are uniformly formed in the outer side of the surface, a threaded mounting groove A is formed in the other end face of the upper suspension part, and a positioning pipe head A is arranged beside the threaded mounting groove A; the upper suspension part and the lower suspension part are arranged, and the upper suspension part and the lower suspension part are correspondingly provided with the mounting holes, the positioning pipe heads, the threaded mounting holes, the positioning insertion blocks and the positioning insertion holes, so that when the device is connected with a sleeve, the positioning pipe heads are slightly smaller than the section of an inner cavity of the sleeve in size, and the positioning pipe heads can be quickly inserted into the corresponding sleeve; and therefore, the corresponding sleeve can be quickly inserted into the threaded mounting groove, and the corresponding sleeve can be tightly connected with the corresponding suspension piece.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling equipment technology, and in particular to an auxiliary casing suspension short section for oil drilling operations. Background Technology

[0002] Oil drilling engineering is a systematic project that uses oil drilling equipment to drill through multiple formations along a designed trajectory from the surface to the predetermined target layer (oil and gas layer or potential oil and gas layer), forming a stable channel (i.e., oil and gas well) for the extraction or injection of the required fluids (water, gas, steam). During and after drilling, core sampling, logging, well logging and testing are carried out to obtain various information required for exploration, development and drilling.

[0003] Oil casing is a steel pipe used to support the wall of an oil well to ensure the normal operation of the entire oil well during the drilling process and after completion. Multiple oil casings need to be connected by a suspension structure.

[0004] Due to varying geological conditions and complex downhole stress states, tensile, compressive, bending, and torsional stresses act on the oil casing, making it susceptible to various forms of damage. Furthermore, during maintenance and replacement, there are difficulties in aligning and positioning the oil casing, which in turn increases the difficulty and reduces the efficiency of casing connection work. Utility Model Content

[0005] In view of the above technical problems, this utility model provides an auxiliary casing suspension short section for oil drilling operations that can be quickly positioned.

[0006] This utility model provides an auxiliary casing suspension section for oil drilling operations, characterized in that it includes an upper suspension member, a lower suspension member, and an installation member, wherein the upper suspension member is detachably connected to the lower suspension member through the installation member.

[0007] The upper suspension component has a through hole in the middle, and multiple positioning holes are evenly distributed on the inner side of one end surface of the upper suspension component. Multiple mounting holes A are evenly distributed on the outer side of the same surface. A threaded mounting groove A is provided on the other end face of the upper suspension component, and a positioning tube head A is provided next to the threaded mounting groove A.

[0008] The lower suspension member is fixedly connected to the left and right sides with hanging rings. A through hole is provided in the middle of the lower suspension member. Multiple positioning blocks are evenly distributed on the inner side of one end surface of the lower suspension member. Multiple mounting holes B are evenly distributed on the outer side of the same surface. A threaded mounting groove B is provided on the other end surface of the lower suspension member. A positioning tube head B is provided next to the threaded mounting groove B.

[0009] The mounting component is a bolt.

[0010] Both mounting holes A and B are threaded holes.

[0011] Both the positioning tube head A and the positioning tube head B are frustum-shaped.

[0012] The beneficial effects of this utility model are as follows: This utility model is an auxiliary casing suspension short section for oil drilling operations. By setting an upper suspension part and a lower suspension part, and the upper and lower suspension parts are correspondingly provided with mounting holes, positioning tube heads, threaded mounting holes, positioning blocks, and positioning insertion holes, the size of the positioning tube head is slightly smaller than the cross-section of the casing cavity when the device is connected to the casing, so that it can be quickly inserted into the corresponding casing. This allows the corresponding casing to be quickly inserted into the threaded mounting groove, so that it can be tightly connected to the corresponding suspension part. Through the insertion of the positioning block and the positioning insertion hole, the corresponding mounting holes of the upper and lower suspension parts can be quickly aligned, which is convenient for the installation of the installation parts. At the same time, during casing oil drilling operations, the connection between the positioning block and the positioning insertion hole can also prevent the upper and lower suspension parts from rotating to a certain extent, making the connection between the two tighter and preventing drilling materials from flowing out from here. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the installation and use structure of this utility model;

[0014] Figure 2 This is a top view of the lower suspension component of this utility model.

[0015] Figure 3 This is a bottom view of the lower suspension component of this utility model.

[0016] Figure 4 This is a top view of the upper suspension component of this utility model.

[0017] Figure 5 This is a bottom view of the upper suspension component of this utility model.

[0018] Figure 6 This is a schematic diagram of the structure of this utility model.

[0019] Reference numerals: 1-Sleeve; 2-Upper suspension; 21-Threaded mounting groove A; 22-Positioning tube head A; 23-Positioning insertion hole; 24-Mounting hole A; 3-Lower suspension; 31-Hanging ring; 32-Mounting hole B; 33-Positioning insertion block; 34-Through hole; 35-Threaded mounting groove B; 36-Positioning tube head B; 4-Mounting component. Detailed Implementation

[0020] Example 1

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0022] like Figure 1As shown, this utility model provides an auxiliary casing suspension section for oil drilling operations, characterized by including an upper suspension member 2, a lower suspension member 3, and an installation member 4, wherein the upper suspension member 2 is detachably connected to the lower suspension member 3 through the installation member 4.

[0023] The upper suspension 2 has a through hole 34 in the middle. Multiple positioning holes 23 are evenly distributed on the inner side of one end surface of the upper suspension 2, and multiple mounting holes A24 are evenly distributed on the outer side of the same surface. A threaded mounting groove A21 is provided on the other end face of the upper suspension 2, and a positioning tube head A22 is provided next to the threaded mounting groove A21.

[0024] The lower suspension member 3 is fixedly connected to the left and right sides of the outer side of the hanging ring 3. The lower suspension member 3 is provided with a through hole 34 in the middle. Multiple positioning blocks 33 are evenly distributed on the inner side of one end surface of the lower suspension member 3. Multiple mounting holes B32 are evenly distributed on the outer side of the same surface. The lower suspension member 3 is provided with a threaded mounting groove B35 on the other end surface. A positioning tube head B36 is provided next to the threaded mounting groove B35.

[0025] Mounting component 4 is a bolt.

[0026] Both mounting holes A24 and B32 are threaded holes.

[0027] Both positioning tube head A22 and positioning tube head B32 are frustum-shaped.

[0028] Example 2

[0029] In use, this utility model is as follows: First, the positioning tube head A22 of the upper suspension 2 is inserted into the sleeve 1. Under the positioning of the positioning tube head A22, the sleeve 1 will eventually be inserted into the threaded mounting groove A21 of the upper suspension 2, so that it is tightly threaded with the upper suspension 2. Next, the positioning tube head B36 of the lower suspension 3 is inserted into another sleeve. Under the positioning of the positioning tube head B36, the sleeve will eventually be inserted into the threaded mounting groove B35 of the lower suspension 3, so that it is tightly threaded with the lower suspension 3. Finally, by inserting the positioning insert 33 into the positioning insert hole 23, and then installing the mounting part 4 into the mounting hole A24 and the mounting hole B32, the upper suspension 2 and the lower suspension 3 are tightly connected.

[0030] It is worth noting that the front end faces of positioning pipe heads A22 and B36 are slightly smaller than the cross-section of casing 1, which allows positioning pipe heads A22 and B36 to be inserted into casing 1 well. At the same time, during drilling and perforation, the gap between the outer surface of positioning pipe heads A22 and B36 and the inner wall of casing 1 will not accumulate too much debris in the well. It also ensures that debris in the well can be smoothly discharged to the outside through the through holes 34 in positioning pipe heads A22 and B36.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field.

[0032] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An auxiliary casing hanger sub for use in oil drilling operations, characterized in that Including upper suspension, lower suspension and mounting, the upper suspension middle part is provided with through hole, the surface of one end of the upper suspension is uniformly provided with a plurality of positioning insertion hole, the surface of the other end of the upper suspension is uniformly provided with a plurality of mounting hole A, the upper suspension is detachably connected with the lower suspension through the mounting, the surface of one end of the lower suspension is uniformly provided with a plurality of positioning insertion block, the surface of the other end of the lower suspension is uniformly provided with a plurality of mounting hole B.

2. The auxiliary casing hanger for use in oil drilling operations of claim 1, wherein The other end surface of the upper suspension is provided with threaded mounting groove A, and the threaded mounting groove A is provided with positioning pipe head A beside.

3. The auxiliary casing hanger for use in oil drilling operations of claim 2, wherein The outer side of the lower suspension is fixedly connected with hanging ring, the middle part of the lower suspension is provided with through hole, the other end surface of the lower suspension is provided with threaded mounting groove B, and the threaded mounting groove B is provided with positioning pipe head B beside.

4. The auxiliary casing hanger for use in oil drilling operations of claim 1, wherein The mounting is bolt.

5. The auxiliary casing hanger for use in oil drilling operations of claim 3, wherein The mounting hole A and the mounting hole B are threaded holes.

6. The auxiliary casing hanger for use in oil drilling operations of claim 3, wherein The positioning pipe head A and the positioning pipe head B are circular truncated cone type.

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