Skid mounted installation of oil well bend manifolds

Abstract

The utility model discloses a skid device of oil well elbow manifold, including the three -way bushing and three -way oil pipe who are connected with the outlet of Christmas tree, three -way bushing and three -way oil pipe all are connected through the flange connecting piece with the outlet of Christmas tree, and one end of three -way oil pipe is connected with one end of integral elbow pipe A through the clamp assembly, according to the specification of Christmas tree, selects the manifold pipe diameter size, realizes the factory prefabrication of pipeline, valve, three -way pipe, reducing tee, does not need the elbow, three -way and cutting pipe fitting of field welding, and the flange connection is changed into the clamp connection, realizes quick installation, replacement. The standardized advantage of factory prefabricated wellhead skid device manifold is realized, realizes the standardization of manifold manufacturing, installation standardization, and only needs to connect with the oil pipe and bushing oil nozzle connection of Christmas tree in the field, adjusts position distance, can complete the installation work of manifold. Through the adoption of wellhead manifold standardization skid device, can significantly reduce the field construction workload, effectively shorten the construction period, and reduce the artificial expenditure.

Description

Technical Field

[0001] This utility model belongs to the field of skid-mounted device technology, specifically, it relates to a skid-mounted device for oil well bend manifolds. Background Technology

[0002] The manifold device that comes out of the wellhead in an oilfield is used to reduce the pressure of the oil well and effectively improve production efficiency. This device is installed at the location where it connects to the oil outlet of the wellhead.

[0003] The existing equipment has many problems with on-site installation and fabrication, which require on-site surveying and mapping. The accuracy of the surveying needs to be further improved. Moreover, the dimensions need to be modified multiple times to achieve a proper fit. In addition, there is a lot of waste of materials and labor. On-site welding of materials requires open flames, which poses a great safety hazard. Furthermore, due to the lack of effective testing instruments on-site, the manufacturing quality cannot be effectively inspected, resulting in significant assembly and safety risks.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies.

[0005] Therefore, in order to solve the above problems, this utility model provides a skid-mounted device for oil well bend manifolds. Utility Model Content

[0006] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide a skid-mounted device for oil well bend manifolds.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] The skid-mounted assembly of the oil well bend manifold includes a tee casing and a tee tubing connected to the Christmas tree outlet. Both the tee casing and the tee tubing are connected to the Christmas tree outlet via flange connections. One end of the tee tubing is connected to one end of an integral bend A via a clamp assembly. A reducing tee is also installed on the integral bend A, and one end of the reducing tee is connected to a sampling valve. The horizontal section of the integral bend A is connected to a first set of clamp valve assemblies via two sets of clamp assemblies. A clamp check valve assembly is also installed on the horizontal section of the integral bend A, located to the right of this set of clamp valve assemblies. One end of the integral bend A is connected to a dedicated tee pipe assembly. The instrumentation pipeline is connected to the integral bend A and the dedicated tee assembly, as well as to the instrumentation pipeline via clamp assemblies. One end of the instrumentation pipeline is connected to a standard tee assembly via clamp assemblies. One end of the standard tee assembly is connected to a second set of clamp valve assemblies via clamp assemblies. One end of the tee sleeve is connected to a welded pipe via clamp assemblies. One end of the welded pipe is connected to a welded elbow. One end of the welded elbow is connected to an integral bend B. One end of the integral bend B is connected to a third set of clamp valve assemblies via clamp assemblies. One end of this set of clamp valve assemblies is connected to the dedicated tee assembly via a clamp elbow.

[0009] Furthermore, the flange connector includes a flange connecting nut and a flange connecting stud, which connect the flange to one end of the wellhead.

[0010] Furthermore, the clamp assembly includes an upper clamp cover, a lower clamp cover, a clamp head, a clamp bolt, a clamp nut, and a steel ring. The clamp head is located at both ends of the upper and lower clamp covers and is fitted onto the pipe. The steel ring is placed inside the upper and lower clamp covers to fit against the outer wall of the pipe. The upper and lower clamp covers are connected and fixed together by the clamp bolt and the clamp nut.

[0011] Furthermore, both the clamp valve assembly and the clamp check valve assembly are equipped with valve insulation boxes for heat preservation.

[0012] Furthermore, a temperature transmitter and a pressure transmitter are fixedly installed on the instrument pipeline.

[0013] Furthermore, each of the clamp valve assemblies is equipped with a valve rotating handle.

[0014] Furthermore, it also includes an I-beam base, the top of which is fitted with a frame. The integral bend A and integral bend B, as well as the special tee assembly, standard tee assembly, valve insulation box, clamp check valve assembly, instrument pipeline, and clamp valve assembly are all assembled on the frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In this invention, the manifold diameter is selected according to the specifications of the wellhead, and the pipes, valves, tees, and reducing tees are prefabricated in the factory. This eliminates the need for on-site welding of elbows, tees, and cut fittings. Flange connections are replaced with clamp connections, enabling rapid installation and replacement. The factory-prefabricated wellhead skid-mounted manifold offers standardized advantages, achieving standardized manifold manufacturing and installation. On-site installation only requires connecting the manifold to the tubing and casing nozzles of the wellhead and adjusting the position and distance. By adopting standardized skid-mounted wellhead manifolds, the amount of on-site construction work can be significantly reduced, effectively shortening the construction cycle and reducing labor costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an enlarged view of point A in this utility model;

[0020] Figure 3 This is an enlarged view of section B of this utility model;

[0021] Figure 4 This is a schematic diagram of the clamp assembly structure of this utility model.

[0022] Figure label:

[0023] 1. Sampling valve; 2. Clamp top cover; 3. Frame; 4. Flange connection nut; 5. Flange connection stud; 6. Welded elbow; 7. Welded pipe; 8. Clamp elbow; 9. Reducing tee; 10. Special tee assembly; 11. Clamp bottom cover; 12. I-beam base; 14. Standard tee assembly; 15. Temperature transmitter; 16. Pressure transmitter; 17. Clamp head; 18. Integral bend A; 19. Integral bend B; 20. Valve insulation box; 21. Clamp check valve assembly; 22. Instrument piping; 24. Clamp bolt; 25. Clamp valve assembly; 26. Clamp nut; 27. Tee sleeve; 28. Tee oil pipe; 29. ​​Steel ring; 30. Valve rotating handle. Detailed Implementation

[0024] The utility model will now be further described with reference to the accompanying drawings and specific embodiments:

[0025] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4According to an embodiment of the present invention, a skid-mounted device for an oil well manifold bend includes a tee sleeve 27 and a tee tubing 28 connected to the outlet of the wellhead. Both the tee sleeve 27 and the tee tubing 28 are connected to the wellhead outlet via flange connections. The tee tubing 28 connects the wellhead outlet to the mains pipe. Because the tee tubing 28 contains a plug, it effectively reduces the oil outlet pressure. One end of the tee tubing 28 is connected to one end of the integral bend A18 via a clamp assembly. The pressure at the oil and gas outlet is reduced by varying the diameter of the plug. When selecting a plug, choosing one with a smaller diameter than the connecting pipe will reduce the oil and gas outlet pressure. A reducing tee 9 is also installed on the integral bend A18. One end is connected to a sampling valve 1. The horizontal section of the integral bend A18 is connected to the first set of clamp valve assemblies 25 via two sets of clamp assemblies. The clamp assembly includes a clamp upper cover 2, a clamp lower cover 11, a clamp head 17, a clamp bolt 24, a clamp nut 26, and a steel ring 29. The clamp head 17 is located at both ends of the clamp upper cover 2 and the clamp lower cover 11 and is fitted onto the pipe. The steel ring 29 is placed inside the clamp upper cover 2 and the clamp lower cover 11 to fit against the outer wall of the pipe. The clamp upper cover 2 and the clamp lower cover 11 are connected and fixed by the clamp bolt 24 and the clamp nut 26. The horizontal section of the integral bend A18 is also equipped with a clamp one-way valve assembly 21, which is located on the right side of the clamp valve assembly 25. The valve assembly 21 is installed on the pipeline to prevent oil backflow. The integral bend A18 is combined with the clamp valve assembly 25 and fixed by placing a steel ring 29 in the middle of the clamp heads 17 at both ends. The upper clamp cover 2 and the lower clamp cover 11 are aligned and tightened with clamp bolts 24 and clamp nuts 26 to achieve a quick connection between the riser and the clamp valve. One end of the integral bend A18 is connected to the instrument pipeline 22 through a special tee assembly 10. The integral bend A18 and the special tee assembly 10, as well as the special tee assembly 10 and the instrument pipeline 22, are all connected by clamp assemblies. One end of the instrument pipeline 22 is connected to a standard tee through a clamp assembly. Assembly 14, one end of the standard tee assembly 14 is connected to a second set of clamp valve assemblies 25 via a clamp assembly. One end of the tee sleeve 27 is connected to a welded pipe 7 via a clamp assembly. One end of the welded pipe 7 is connected to a welded elbow 6. One end of the welded elbow 6 is connected to an integral bend B19. The integral bend B19 is a prefabricated integral bend welded assembly of the welded elbow 6 and the welded pipe 7. One end of the integral bend B19 is connected to a third set of clamp valve assemblies 25 via a clamp assembly. One end of this set of clamp valve assemblies 25 is connected to a dedicated tee assembly 10 via a clamp elbow 8. The integral bend B19 is fixed by placing a steel ring 29 between the clamp heads 17 at both ends. The clamp upper cover 2 and clamp lower cover 11 are aligned.The clamp upper cover 2 and clamp lower cover 11 are secured with clamp bolts 24 and clamp nuts 26, enabling quick connection of the pipelines at both ends via the clamps. The 90° clamp elbow 8 adjusts the manifold in a 90° direction, and oil is transported through the dedicated tee assembly 10. Additionally, the sampling valve 1 of the integral bend A18 serves as a valve for sampling oil during transport.

[0026] Please see Figure 1 The flange connector includes a flange connecting nut 4 and a flange connecting stud 5. The flange is connected to one end of the wellhead using the flange connecting nut 4 and the flange connecting stud 5, thus enabling a quick connection between the flange and the wellhead.

[0027] Please see Figure 2 Both the clamp valve assembly 25 and the clamp check valve assembly 21 are equipped with valve insulation boxes 20 for insulation. The valve insulation box 20 is wrapped with a heat tracing cable inside. The heat tracing cable and polyurethane protective layer are used to keep the valves warm in winter. All pipes are also equipped with an insulation layer with a thickness of 30mm to keep the pipes warm in winter.

[0028] Please see Figure 1 A temperature transmitter 15 and a pressure transmitter 16 are fixedly installed on the instrument pipeline 22. The temperature transmitter 15 and the pressure transmitter 16 can detect the oil pressure and oil temperature.

[0029] Please see Figure 2 and Figure 3 Each clamp valve assembly 25 is equipped with a valve rotating handle 30, which is used for manual rotation to open and regulate the flow rate.

[0030] Please see Figure 1 , Figure 2 and Figure 3 It also includes an I-beam base 13, with a frame 3 mounted on the top of the I-beam base 13. The integral bends A18 and B19, as well as the special tee assembly 10, the standard tee assembly 14, the valve insulation box 20, the clamp check valve assembly 21, the instrument pipeline 22, and the clamp valve assembly 25 are all assembled on the frame 3 to create an integral skid frame 3, which serves to achieve integral manufacturing, integral transportation, and convenient installation.

[0031] The working principle of the skid-mounted device for the oil well bend manifold of this utility model patent is as follows: A special tee assembly 10, a standard tee assembly 14, a valve insulation box 20, a clamp check valve assembly 21, an instrument pipe 22, and a clamp valve assembly 25 are assembled on the frame 3 for easy overall transportation. When on-site assembly is required, the integral bend A18 and integral bend B19 are connected to their corresponding clamp valve assemblies 25. One end of the integral bend A18 is connected to the tee oil pipe 28 via the clamp assembly, and one end of the tee oil pipe 28 is connected to the wellhead via a flange. The integral bend B19 (the integral bend B19 is a welded elbow 6)... One end of the prefabricated welded pipe 7 (integrated elbow welding assembly) is connected to the tee tubing 28 via a clamp assembly. The other end of the tee tubing 28 is connected to the Christmas tree via a flange, thus enabling oil transportation and collection operations. In this scheme, the connections between the pipe and the tee, valve, etc., are all made using clamp assemblies. This connection method eliminates the need for welding and hot work on site, reducing safety hazards. It is also convenient to operate and reusable. The factory-prefabricated wellhead skid-mounted manifold has standardized advantages, achieving standardized manifold manufacturing and installation. On-site, only the tubing and casing nozzles connected to the Christmas tree need to be connected, and the position and distance adjusted to complete the manifold installation. By adopting standardized skid-mounted wellhead manifolds, the amount of on-site construction work can be significantly reduced, the construction cycle can be effectively shortened, and labor costs can be reduced.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. Skid mounted installation of a Christmas tree manifold, comprising a tee casing (27) and a tee tubing (28) connected to the outlet of the Christmas tree, characterized in that, The three-way sleeve (27) and the three-way oil pipe (28) are connected to the outlet of the wellhead via flange connections. One end of the three-way oil pipe (28) is connected to one end of the integral bend A (18) via a clamp assembly. A reducing tee (9) is also installed on the integral bend A (18). One end of the reducing tee (9) is connected to a sampling valve (1). The horizontal section of the integral bend A (18) is connected to a first set of clamp valve assemblies (25) via two sets of clamp assemblies. A clamp check valve assembly (21) is also installed on the horizontal section of the integral bend A (18). The clamp check valve assembly (21) is located on the right side of the clamp valve assembly (25). One end of the integral bend A (18) is connected to an instrument pipeline (22) via a dedicated three-way pipe assembly (10). The integral bend A (18) is connected to the dedicated three-way pipe assembly (10). The T-joint assembly (10) and the dedicated T-joint assembly (10) are connected to the instrumentation pipeline (22) via clamp assemblies. One end of the instrumentation pipeline (22) is connected to a standard T-joint assembly (14) via clamp assemblies. One end of the standard T-joint assembly (14) is connected to a second set of clamp valve assemblies (25) via clamp assemblies. One end of the T-joint sleeve (27) is connected to a welded pipe (7) via clamp assemblies. One end of the welded pipe (7) is connected to a welded elbow (6). One end of the welded elbow (6) is connected to an integral bend B (19). One end of the integral bend B (19) is connected to a third set of clamp valve assemblies (25) via clamp assemblies. One end of this set of clamp valve assemblies (25) is connected to the dedicated T-joint assembly (10) via a clamp elbow (8).

2. The skid-mounted installation of oil well bend manifolds according to claim 1, characterized in that, The flange connector includes a flange connecting nut (4) and a flange connecting stud (5), which connect the flange to one end of the tree.

3. The skid-mounted oil well swivel manifold assembly of claim 1, wherein, The clamp assembly includes a clamp upper cover (2), a clamp lower cover (11), a clamp head (17), a clamp bolt (24), a clamp nut (26), and a steel ring (29). The clamp head (17) is located at both ends of the clamp upper cover (2) and the clamp lower cover (11) and is fitted onto the pipe. The steel ring (29) is placed inside the clamp upper cover (2) and the clamp lower cover (11) to fit against the outer wall of the pipe. The clamp upper cover (2) and the clamp lower cover (11) are connected and fixed together by the clamp bolt (24) and the clamp nut (26).

4. The skid-mounted oil well swivel manifold assembly of claim 1, wherein, Both the clamp valve assembly (25) and the clamp check valve assembly (21) are provided with valve insulation boxes (20) for insulation.

5. The skid-mounted oil well swivel manifold assembly of claim 1, wherein, A temperature transmitter (15) and a pressure transmitter (16) are fixedly installed on the instrument pipeline (22).

6. The skid-mounted oil well swivel manifold assembly of claim 1, wherein, Each clamp valve assembly (25) is equipped with a valve rotating handle (30).

7. The skid-mounted oil well swivel manifold assembly of claim 4, wherein, It also includes an I-beam base (13), the top of which is fitted with a frame (3). The integral bend A (18) and integral bend B (19), as well as the special tee assembly (10), standard tee assembly (14), valve insulation box (20), clamp check valve assembly (21), instrument pipe (22), and clamp valve assembly (25) are all assembled on the frame (3).

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