Small hole side tracking well eccentric pressure gauge bucket

Abstract

The utility model relates to a small hole side tracking well eccentric pressure gauge bucket, it includes pressure gauge bucket body, the upper joint A and lower joint B are set up respectively in pressure gauge bucket body upper and lower end, the upper joint A is used for connecting the upper packer and the well flushing device, the lower joint B is used for connecting the lower oil pipe, eccentric through -hole is set up in the middle of pressure gauge bucket body, eccentric through -hole penetrates lower joint B and is linked with the upper joint A, the utility model discloses reasonable in design, compact structure and convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of oil well logging and relates to the bucket of an eccentric pressure measuring instrument for small-bore side-drilling. Background Technology

[0002] The existing pressure gauge bucket tool is a special device used to install pressure sensors or pressure gauges. Its core functions are to protect the pressure gauge, ensure measurement accuracy, and adapt to complex working conditions.

[0003] Advantages and disadvantages of existing pressure gauge bucket tools: 1. While existing pressure gauge bucket tools can operate in conventional casing, their design cannot meet the requirements of a single tubing run for pressure testing and well washing in small wells. 2. Existing pressure testing technology for small wells using cable transmission for pressure testing instruments is difficult to implement, especially in highly deviated wells, where downsinking is challenging or impossible.

[0004] The purpose of this utility model is to enable the well washing and pressure testing operation to be carried out in one tubing string through the structure of this tool, thereby reducing the operation steps, shortening the operation time, and saving operation costs. Utility Model Content

[0005] The technical problem to be solved by this utility model is, in general, to provide a bucket for an eccentric pressure measuring instrument in small-bore side-drilling.

[0006] This invention solves the problem of pressure measurement and well washing operations using 3.5-inch to 4.5-inch casing tubing in small-diameter side-drilling operations, requiring a separate cable transmission pressure measurement instrument and a separate sand flushing tubing operation in the engineering process of small-diameter side-drilling operations, especially in highly deviated wells.

[0007] This pressure gauge, through its eccentric design, allows for side mounting of the pressure gauge in a small-diameter bucket, ensuring effective pressure measurement. Simultaneously, the eccentric hole design ensures that the inner diameter matches the connecting tubing, guaranteeing smooth flow of the well-washing fluid without throttling. This integrated tubing string enables side-drilling sand flushing, well-washing, and pressure measurement in small-bore wells.

[0008] To solve the above problems, the technical solution adopted by this utility model is as follows: A small-bore side-drilling eccentric pressure gauge support bucket, comprising a pressure gauge support bucket body; The pressure gauge support bucket is equipped with an upper connector A and a lower connector B at its upper and lower ends, respectively. Upper connector A is used to connect the upper packer and well-washing equipment, etc. Lower connector B is used to connect lower components such as lower oil pipes; An eccentric through hole is provided in the middle of the pressure gauge support tank; An eccentric through hole penetrates the lower connector B and connects to the upper connector A.

[0009] As a further improvement to the above technical solution: A sidewall milling flattening is provided on the outer wall of the pressure gauge support bucket; Threaded holes are provided at the upper and lower ends of the milled sidewall. A connecting part is provided at the milled flattened part of the side wall; The connecting body has an intermediate body, and flat heads are provided at both ends of the intermediate body; Flat-headed flat sections are provided at both ends of the flat body; The flat head has a connecting through hole; The through hole and the threaded hole are connected by screws.

[0010] Several flattenings are set on the intermediate body.

[0011] The pressure gauge support is cylindrical.

[0012] The connecting body is made of stainless steel.

[0013] The improvement of this utility model lies in how the tool itself can achieve a single-run operation of pressure testing and well washing via tubing transmission in small-bore side-drilling, reducing the number of operation steps and shortening the operation time, thereby saving operation costs.

[0014] The advantages of this utility model are: 1. With this design, the eccentric pressure gauge holder for small-bore side-drilling can ensure pressure measurement and well washing operations in a single tubing run, especially for highly deviated wells. 2. The product's structure and auxiliary tubing reduce construction steps, operation time, and costs. 3. By selecting the eccentric pressure gauge holder for small-bore side-drilling, this design only requires routine maintenance, resulting in low maintenance costs and short maintenance cycles.

[0015] This utility model is reasonably designed, low in cost, sturdy and durable, safe and reliable, simple to operate, time-saving and labor-saving, cost-saving, compact in structure and easy to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the pressure gauge support body of this utility model.

[0017] Figure 2 This is a schematic diagram of the upper connector A of this utility model.

[0018] Figure 3 This is a schematic diagram of the sidewall milling structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the connecting body of this utility model.

[0020] The components are: 1. Pressure gauge support body; 2. Upper connector A; 3. Screw; 4. Lower connector B; 5. Eccentric through hole; 6. Side wall milling; 7. Threaded hole; 8. Connecting body; 9. Flat head; 10. Flat head; 11. Connecting through hole; 12. Flattened; 13. Upper component; 14. Lower component. Detailed Implementation

[0021] like Figure 1-4 As shown, the eccentric pressure gauge support bucket of the small-bore side drilling in this embodiment includes a pressure gauge support bucket body 1; The pressure gauge support body 1 is provided with an upper connector A2 and a lower connector B4 at its upper and lower ends, respectively; tapered threads are preferred.

[0022] The upper connector A2 is used to connect existing upper components 13 such as the upper packer and well washing device.

[0023] Lower connector B4 is used to connect to existing lower components 14, such as lower oil pipes.

[0024] An eccentric through hole 5 is provided in the middle of the pressure gauge support body 1; thus, it can achieve vertical connection and facilitate side connection to the connecting body 8. The eccentric through hole 5 passes through the lower connector B4 and is connected to the upper connector A2.

[0025] A sidewall milling flattening 6 is provided on the outer wall of the pressure gauge support body 1; Threaded holes 7 are provided at the upper and lower ends of the sidewall milling flattening 6; A connecting part 8 is provided at the milled flattening point 6 on the side wall; Connectors 8 and 12 are used to connect pressure measuring instruments.

[0026] The connecting body 8 has an intermediate body, and flat heads 9 are respectively provided at both ends of the intermediate body; Flat-headed flat sections 10 are provided at both ends of the flat head 9; The flat head 9 has a connecting through hole 11; The connecting through hole 11 and the threaded hole 7 are connected by a screw 3.

[0027] Several flattened sections 12 are set on the intermediate body, that is... The threads or bayonet that connect to the pressure gauge.

[0028] The pressure gauge support body 1 is cylindrical.

[0029] The connecting part 8 is made of stainless steel.

[0030] The working principle of this utility model: First, clean the pressure gauge support tank 1; Secondly, the pressure gauge is connected via the connecting body parts 8 and 12, and it is connected to the threaded hole part 7 via the screw part 3 through the connecting through hole 11; Next, connect the pressure gauge holder 1 to the upper and lower tubing and place it into the well tubing.

[0031] The structure of this utility model tool enables a single tubing string operation for side-drilling in small wells, especially in highly deviated wells, involving tubing transfer, pressure testing, and well washing. This reduces the number of operation steps, shortens the operation time, and saves on operation costs.

[0032] This invention features a milled groove (flattened sidewall) on one side of the pressure gauge support. The groove is secured to the pressure gauge by two upper and lower clamping joints, and then further secured to one side by two nuts on each side. This design ensures normal pressure measurement while the multi-stage nut securing prevents the pressure gauge from falling off. The internal channel of the pressure gauge support is designed eccentrically to maximize the well-washing channel, ensuring simultaneous pressure measurement and well-washing.

[0033] This utility model is described in detail for the purpose of making the disclosure clearer, and the prior art will not be listed one by one.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. It is obvious to those skilled in the art that multiple technical solutions of this utility model can be combined. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. All technical contents not described in detail in this utility model are publicly known technologies.

Claims

1. A bucket for an eccentric pressure gauge in small-bore side-drilling wells, characterized in that: Including the pressure gauge support body (1); The pressure gauge support body (1) is equipped with an upper connector A (2) and a lower connector B (4) at its upper and lower ends respectively. Upper connector A (2) is used to connect the upper component (13); Lower connector B (4) is used to connect the lower component (14). An eccentric through hole (5) is provided in the middle of the pressure gauge support bucket (1); The eccentric through hole (5) passes through the lower connector B (4) and is connected to the upper connector A (2); The upper component (13) includes an upper packer and a well-washing device; The lower component (14) includes the lower oil pipe; A sidewall milling flattening (6) is provided on the outer side wall of the pressure gauge support bucket (1). Threaded holes (7) are provided at the upper and lower ends of the sidewall milling flattening (6); A connecting body (8) is provided at the milled flattening (6) location on the side wall; The connecting body (8) has an intermediate body, and flat heads (9) are respectively provided at both ends of the intermediate body. Flat-headed flat sections (10) are provided at both ends of the flat head (9); The flat head (9) has a connecting through hole (11); The connecting through hole (11) and the threaded hole (7) are connected by a screw (3).

2. The bucket of the eccentric pressure gauge for small-bore side-drilling as described in claim 1, characterized in that: Several flattened parts (12) are set on the intermediate body.

3. The bucket of the eccentric pressure gauge for small-bore side-drilling as described in claim 1, characterized in that: The pressure gauge support body (1) is a cylinder.

4. The bucket of the eccentric pressure gauge for small-bore side-drilling as described in claim 1, characterized in that: The connecting body (8) is made of stainless steel.

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