A stainless steel wire-wound screen pipe
By using end support mechanism and positioning components in the stainless steel wire winding screen tube for quick plug-in positioning, and using docking mechanism to achieve flexible movement, the problems of high-precision welding and insufficient flexibility in the prior art are solved, and the cost is reduced. Extend service life.
Patent Information
- Application Number
- CN202411471555.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2044-10-22
AI Technical Summary
The existing stainless steel wire-woven screen pipes require high precision welding and fixed flange structure during production and processing, resulting in high equipment costs and insufficient flexibility in use, so it is impossible to flexibly select the filter area.
The end support mechanism and positioning components are used for quick plug-in positioning, and the flexible movement is achieved through welding and the docking mechanism is achieved, controlling the use area of the wire screen pipe to ensure installation accuracy and use flexibility.
It reduces equipment costs, improves installation accuracy and welding reliability, can be installed and used with downhole pipelines of different spacings, and extends the replacement cycle.
Smart Images
Figure CN118979719B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of oil well mining equipment, in particular to a stainless steel wire-wound screen pipe. Background Art
[0002] Stainless steel wire-wound screen is a kind of petroleum screen used in various oil wells, vertical wells, side drilling wells, horizontal wells, water wells, steam drive wells, etc. on land and sea. Its production materials include various specifications of stainless steel T-wires, with multi-layer sand-proof filter sleeves, and excellent quality sand-proof performance. It can better block sand particles in the formation and meet the needs of underground sand control. In addition, the stainless steel wire-wound screen has a large filtering area, and the multi-layer structure is welded into one, which can make the filter hole stable and has strong anti-deformation ability.
[0003] In the production and processing of stainless steel wire-wound screen pipes in the prior art, a large number of annular wires need to be welded and fixed to straight vertical wires, and the process needs to ensure that the gap between each wire is kept consistent. This requires the welding processing equipment to have the function of accurately measuring and positioning each wire, resulting in extremely high accuracy requirements for the equipment and high equipment costs. On the other hand, conventional stainless steel wire-wound screen pipes are connected to the downhole pipeline through flange structures fixed at both ends, which results in each wire-wound screen pipe being unable to select the actual filtering area when used, and the size of the wire-wound screen pipe also needs to match the downhole pipeline, resulting in insufficient flexibility and limited scope of application. Summary of the invention
[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a stainless steel wire-wound screen pipe to solve the problems raised in the above-mentioned background technology. During the production stage, the present invention can quickly complete the plug-in and positioning process of each wire-wound component with the help of an end support mechanism and a positioning assembly, thereby improving the installation accuracy and reducing the equipment cost. The welding process is more firm and reliable, with a long service life. The docking mechanism can be moved flexibly so that it can be installed and used with pipes at different spacings underground, and the area of the wire-wound screen pipe actually used can be controlled.
[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a stainless steel wire-wound screen tube, comprising a wire-wound screen tube body, the wire-wound screen tube body comprising a wire-wound assembly, a positioning assembly, a docking mechanism and a vertical wire assembly, the cross-section of the wire-wound assembly is a triangular structure, the positioning assembly and the docking mechanism are both fixed to the surface of the wire-wound assembly by welding, gaps are provided between adjacent wire-wound assemblies, and the width of each gap is the same, end support mechanisms are welded at both ends of the positioning assembly, the two ends of the vertical wire assembly are against the surface of the end support mechanism, the inner side of the end support mechanism is interspersed with a docking mechanism, the end of the docking mechanism is integrally formed with an inner flange, a rubber ring is attached to the edge of the inner flange, and the inner flange is fitted with the inner side of the wire-wound assembly through the rubber ring, the number of the docking mechanisms is two, and the inner side of each of the end support mechanisms is fitted with the surface of the docking mechanism.
[0006] Furthermore, the wire winding assembly includes a plurality of independent triangular wire windings, and the side of each independent triangular wire winding is integrally formed with an external protrusion, a positioning hole is opened inside each of the external protrusions, an inner arc edge is arranged on the inner side of the independent triangular wire winding, and an outer arc edge is arranged on the outer side of the independent triangular wire winding.
[0007] Furthermore, there are two external protrusions on each of the independent triangular wire windings, the top and bottom of the positioning hole are interconnected, and the cross-section of the independent triangular wire winding is an isosceles triangle structure.
[0008] Furthermore, the end support mechanism is composed of a support ring, a surface of which is provided with a guide hole and a threaded sleeve, and a plug-in groove is also provided on one side of the support ring, and the guide hole and the threaded sleeve are symmetrically arranged at the top and bottom of the support ring respectively.
[0009] Furthermore, the docking mechanism includes an inner lining sleeve, an inner flange and an outer convex ring, a guide rod is welded on one side of the outer convex ring, a screw rod is inserted into the bottom of the outer convex ring, a handwheel is threaded on one end of the screw rod, and a retaining ring is integrally formed on the surface of the screw rod.
[0010] Furthermore, the retaining ring is clamped on both sides of the outer convex ring, the handwheel and the screw are assembled by screws, the surface of the inner lining sleeve is in contact with and fits with the inner arc edge of the independent triangular winding wire, the guide rod passes through the inside of the guide hole, and the screw passes through the inside of the threaded sleeve.
[0011] Furthermore, the positioning assembly includes a vertical positioning wire and a positioning column. Both ends of the vertical positioning wire are integrally formed with plug-in blocks, the plug-in blocks are embedded in the interior of the plug-in slot, and the surface of the vertical positioning wire is integrally formed with a positioning column.
[0012] Furthermore, a center rod is integrally formed on the top of the positioning column, a welding sleeve is sleeved on the surface of the center rod, a limiting baffle is integrally formed on the top of the center rod, and the edge diameter of the welding sleeve is the same as the edge diameter of the positioning column and the limiting baffle, and the welding sleeve is integrally embedded in the interior of the positioning hole.
[0013] Furthermore, the vertical wire assembly includes a first spliced vertical wire and a second spliced vertical wire, and the bottoms of the first spliced vertical wire and the second spliced vertical wire are both integrally formed with an extension strip, and the bottoms of the extension strips are integrally formed with a first welding piece or a second welding piece.
[0014] Furthermore, the first welding plate or the second welding plate is inclined as a whole, and is used to fit on both sides of the independent triangular winding wire, and the ends of the first welding plate or the second welding plate are in contact with each other, and the cross-sections of the first spliced vertical wire and the second spliced vertical wire are both semicircular structures.
[0015] Beneficial effects of the present invention:
[0016] 1. During the installation stage, the stainless steel wire-wound screen tube can quickly complete the plug-in and positioning process of each wire-wound component with the help of the end support mechanism and the positioning component, ensuring that the gap between each wire-wound component remains consistent, and can also be guided by the docking mechanism during installation, further improving the efficiency of plugging in each wire-wound component, and providing additional auxiliary positioning functions, improving installation accuracy, and reducing equipment costs.
[0017] 2. After the stainless steel wire-wound screen pipe is positioned, it is welded and reinforced through the vertical wire assembly. In this process, two sets of different vertical wire assemblies are embedded into the inner side of each wire-wound assembly to complete the wrapping of each independent triangular wire, and then welded quickly along a straight line. Therefore, the welding process is more solid and reliable, and the service life is long.
[0018] 3. The stainless steel wire-wound screen tube can control the docking mechanism from the outside to move flexibly, so that it can be installed and used with pipes at different intervals underground. With the help of the inner flanges and rubber ring structure at the ends of the two docking mechanisms, the flowing oil can be limited to pass through the wire-wound screen tube area between the two inner flanges during use. Therefore, the wire-wound screen tube area actually used can be controlled, thereby changing the wire-wound screen tube area actually used for filtration in different time periods to ensure that the filtration effect at different times remains consistent, and the replacement cycle of the wire-wound screen tube can also be extended. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the appearance of a stainless steel wire-wrapped screen tube of the present invention;
[0020] Figure 2 It is an internal cross-sectional view of one end of a stainless steel wire-wrapped screen tube of the present invention;
[0021] Figure 3 It is a cross-sectional view of the independent triangular winding part of the present invention;
[0022] Figure 4 This is a disassembled diagram of the vertical wire assembly of the present invention;
[0023] Figure 5 It is a schematic diagram of the connection between the end support mechanism and the docking mechanism of the present invention;
[0024] Figure 6 It is a structural schematic diagram of the positioning component part of the present invention;
[0025] Figure 7 for Figure 1 A magnified image of area A;
[0026] In the figure: 1. Wire winding assembly; 2. End support mechanism; 3. Positioning assembly; 4. Vertical wire assembly; 5. Docking mechanism; 6. Inner lining sleeve; 7. Inner flange; 8. Independent triangular wire winding; 9. Inner arc edge; 10. Outer arc edge; 11. Outer convex column; 12. Positioning hole; 13. First splicing vertical wire; 14. Second splicing vertical wire; 15. Extension strip; 16. First welding piece; 17. Second welding piece; 18. Outer convex ring; 19. Guide rod; 20. Screw rod; 21. Retaining ring; 22. Hand wheel; 23. Support ring; 24. Guide hole; 25. Threaded sleeve; 26. Plug-in groove; 27. Positioning vertical wire; 28. Plug-in block; 29. Positioning column; 30. Center rod; 31. Welding sleeve; 32. Limit baffle; 33. Rubber ring; 34. Gap. DETAILED DESCRIPTION
[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.
[0028] See also Figures 1 to 7The present invention provides the following technical solutions: a stainless steel wire-wound screen tube, comprising a wire-wound screen tube body, the wire-wound screen tube body comprising a wire-wound assembly 1, a positioning assembly 3, a docking mechanism 5 and a vertical wire assembly 4, the cross-section of the wire-wound assembly 1 is a triangular structure, the positioning assembly 3 and the docking mechanism 5 are both fixed to the surface of the wire-wound assembly 1 by welding, a gap 34 is provided between adjacent wire-wound assemblies 1, and the width of each gap 34 is the same, end support mechanisms 2 are welded at both ends of the positioning assembly 3, both ends of the vertical wire assembly 4 are against the surface of the end support mechanism 2, the inner side of the end support mechanism 2 is interspersed with a docking mechanism 5, the end of the docking mechanism 5 is integrally formed with an inner flange 7, a rubber ring 33 is attached to the edge of the inner flange 7, and the inner flange 7 is fitted with the inner side of the wire-wound assembly 1 through the rubber ring 33, the number of the docking mechanisms 5 is two, and the inner side of each of the end support mechanisms 2 is fitted with the surface of the docking mechanism 5. The stainless steel wire-wrap screen pipe is used for providing filtering treatment for the exploitation process of an oil well, and can flexibly control the actual process use area of the stainless steel wire-wrap screen pipe.
[0029] During the production and processing of the stainless steel wire-wound screen provided by the present invention, the two positioning components 3 are first inserted into the inner side of the end support mechanism 2 and welded and fixed, and then each wire-wound component 1 can be inserted along the positioning column 29 on the positioning component 3 in turn, and in this process, the docking mechanism 5 is manually controlled to move through the end support mechanism 2 to assist the insertion process of each wire-wound component 1 until the insertion of each wire-wound component 1 is completed, and then the vertical wire component 4 can be embedded into each positioned wire-wound component 1, and the vertical wire components 4 are manually spliced, and finally, the bottom of each vertical wire component 4 is manually welded and fixed from the inner side of the wire-wound component 1 through welding equipment to achieve the connection between the vertical wire and the wire, and the entire processing and production process can be completed. In subsequent use, the hand wheel 22 can be turned to control the extension distance of each docking mechanism 5, so as to cooperate with the bottom pipeline part of the oil well for connection.
[0030] In this embodiment, the winding assembly 1 includes a plurality of independent triangular winding wires 8, and the side of each independent triangular winding wire 8 is integrally formed with an external convex column 11, and a positioning hole 12 is opened inside each of the external convex columns 11. An inner arc edge 9 is provided on the inner side of the independent triangular winding wire 8, and an outer arc edge 10 is provided on the outer side of the independent triangular winding wire 8. There are two external convex columns 11 on each of the independent triangular winding wires 8, and the top and bottom of the positioning hole 12 are mutually connected, and the cross-section of the independent triangular winding wire 8 is an isosceles triangle structure.
[0031] Specifically, multiple independent triangular wire wraps 8 are positioned by means of the positioning assembly 3, and then each independent triangular wire wrap 8 is welded and fixed from the outside by multiple groups of vertical wire assemblies 4 to ensure that the width of the gap 34 between adjacent independent triangular wire wraps 8 remains consistent, and the processing and installation are completed.
[0032] In this embodiment, the end support mechanism 2 is composed of a support ring 23, the surface of which is provided with a guide hole 24 and a threaded sleeve 25, and one side of the support ring 23 is provided with a plug-in groove 26, the guide hole 24 and the threaded sleeve 25 are symmetrically provided at the top and bottom of the support ring 23 respectively. The docking mechanism 5 comprises an inner lining sleeve 6, an inner flange 7 and an outer convex ring 18, one side of the outer convex ring 18 is welded with a guide rod 19, the bottom of the outer convex ring 18 is inserted with a screw 20, one end of the screw 20 is screwed with a hand wheel 22, and the surface of the screw 20 is integrally formed with a clamping ring 21. The clamping ring 21 is clamped on both sides of the outer convex ring 18, the hand wheel 22 and the screw 20 are assembled by screws, the surface of the inner lining sleeve 6 is in contact with the inner arc edge 9 of the independent triangular wire 8, the guide rod 19 passes through the inside of the guide hole 24, and the screw 20 passes through the inside of the threaded sleeve 25. The docking mechanism 5 can be controlled from the outside to be flexibly moved so that it can be installed and used with pipes at different intervals underground. With the help of the inner flanges 7 and the rubber ring 33 structure at the ends of the two docking mechanisms 5, the flowing oil during use can be limited to pass only through the wire screen area between the two inner flanges 7. Therefore, the wire screen area actually used can be controlled, thereby changing the wire screen area actually used for filtration in different time periods to ensure that the filtration effect at different times remains consistent, and the replacement cycle of the wire screen can also be extended.
[0033] Specifically, by turning the hand wheel 22 to control the rotation of the screw rod 20, the screw rod 20 can cooperate with the threaded sleeve 25 to drive the entire outer convex ring 18 and the inner lining sleeve 6 to move, so that the inner flange 7 at the end can be controlled to move. When the stainless steel wire screen is docked with the well pipe, the two ends of the stainless steel wire screen are directly sleeved inside the well pipe, and then the two inner flanges 7 can be directly docked and locked with the well pipe by the above-mentioned rotation of the hand wheel 22. This process can control the position of the two inner flanges 7 in the stainless steel wire screen. Therefore, in the subsequent filtering process, the filtered oil can only pass through the stainless steel wire screen corresponding to the two inner flanges 7 between the two inner flanges 7. After the stainless steel wire screen in this area is blocked, the position of the inner flange 7 inside the stainless steel wire screen can still be changed by the above-mentioned rotation of the hand wheel 22. The stainless steel wire screen area corresponding to the two inner flanges 7 can be changed, thereby changing the filtering area, ensuring that it can continue to be filtered and used without replacement.
[0034] In this embodiment, the positioning assembly 3 includes a positioning vertical wire 27 and a positioning column 29. Both ends of the positioning vertical wire 27 are integrally formed with plug-in blocks 28, and the plug-in blocks 28 are embedded in the plug-in slot 26. The surface of the positioning vertical wire 27 is integrally formed with a positioning column 29. The top of the positioning column 29 is integrally formed with a center rod 30, and the surface of the center rod 30 is sleeved with a welding sleeve 31. The top of the center rod 30 is integrally formed with a limited baffle 32, and the edge diameter of the welding sleeve 31 is the same as the edge diameter of the positioning column 29 and the limited baffle 32. The welding sleeve 31 is integrally embedded in the interior of the positioning hole 12. During the installation stage, each wire winding assembly 1 can be quickly plugged in and positioned with the help of the end support mechanism 2 and the positioning assembly 3, ensuring that the gap 34 between each wire winding assembly 1 remains consistent, and the installation can also be guided by the docking mechanism 5, which further improves the efficiency of plugging each wire winding assembly 1, and provides additional auxiliary positioning functions, improves installation accuracy, and reduces equipment costs.
[0035] Specifically, during production, the outer protrusion 11 on the independent triangular wire winding 8 is sleeved on the positioning column 29, and the independent triangular wire winding 8 can be positioned with the help of the positioning components 3 on both sides, and during the installation process, the movement of the inner flange 7 can be controlled by rotating the hand wheel 22, so the fixed number of rotations can control the fixed movement area of the inner flange 7, so that when the independent triangular wire winding 8 is inserted, the hand wheel 22 is directly rotated a fixed number of circles, and then the independent triangular wire winding 8 is moved down along the surface of the inner flange 7, so that the independent triangular wire winding 8 can be guided to ensure that the independent triangular wire winding 8 can be quickly inserted into the positioning column 29 at the bottom.
[0036] In this embodiment, the vertical wire assembly 4 includes a first vertical wire 13 and a second vertical wire 14, and the bottom of the first vertical wire 13 and the second vertical wire 14 are both integrally formed with an extension strip 15, and the bottom of the extension strip 15 is integrally formed with a first welding piece 16 or a second welding piece 17. The first welding piece 16 or the second welding piece 17 is tilted as a whole, and the first welding piece 16 or the second welding piece 17 is used to fit on both sides of the independent triangular winding wire 8, and the ends of the first welding piece 16 or the second welding piece 17 are in contact with each other, and the cross-sections of the first vertical wire 13 and the second vertical wire 14 are both semicircular structures. After positioning is completed, welding reinforcement is performed by the vertical wire assembly 4, and in this process, two different groups of vertical wire assemblies 4 are embedded in the inner side of each winding assembly 1 to complete the wrapping of each independent triangular winding wire 8, and then welding is quickly performed along a straight line, so the welding process is more solid and reliable, and the service life is long.
[0037] Specifically, the first welding piece 16 or the second welding piece 17 at the bottom is embedded under the independent triangular wire 8 along the gap 34 by connecting the first vertical wire 13 and the second vertical wire 14, and then the first vertical wire 13 and the second vertical wire 14 are pulled closer to each other, so that the first vertical wire 13 and the second vertical wire 14 can be combined to form a complete rod, and the first welding piece 16 or the second welding piece 17 at the bottom are in contact with each other. After contact, the first welding piece 16 or the second welding piece 17 can be welded from the inside of the stainless steel wire screen, and the independent triangular wire 8 can be wrapped and welded with the help of the first welding piece 16 or the second welding piece 17. At the same time, each welding sleeve 31 on the positioning component 3 is heated from the outside of the outer convex column 11, and the welding and fixing process between the positioning component 3 and the independent triangular wire 8 can be achieved with the help of the melting effect of the welding sleeve 31.
[0038] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.
[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A stainless steel wire-wound screen tube, comprising a wire-wound screen tube body, characterized in that: The wire-wound screen body comprises a wire-wound assembly (1), a positioning assembly (3), a docking mechanism (5) and a vertical wire assembly (4); the cross-section of the wire-wound assembly (1) is a triangular structure; the positioning assembly (3) and the docking mechanism (5) are both fixed to the surface of the wire-wound assembly (1) by welding; gaps (34) are provided between adjacent wire-wound assemblies (1); and the width of each gap (34) is the same; end support mechanisms (2) are welded to both ends of the positioning assembly (3); both ends of the vertical wire assembly (4) are pressed against the surface of the end support mechanism (2); the docking mechanism (5) is inserted into the inner side of the end support mechanism (2); and the end of the docking mechanism (5) is An inner flange (7) is integrally formed, a rubber ring (33) is attached to the edge of the inner flange (7), and the inner flange (7) is fitted with the inner side of the wire winding assembly (1) through the rubber ring (33), the number of the docking mechanisms (5) is two, the inner side of each of the end support mechanisms (2) is fitted with the surface of the docking mechanism (5), the wire winding assembly (1) includes a plurality of independent triangular wire windings (8), and the side edge of each independent triangular wire winding (8) is integrally formed with an external convex column (11), and a positioning hole (12) is provided inside each of the external convex columns (11), and the inner side of the independent triangular wire winding (8) is provided with an inner arc edge (9), and the inner side of the independent triangular wire winding (8) is provided with an inner arc edge (9). (8) is provided with an outer arc edge (10), the number of the outer bosses (11) on each of the independent triangular wire wraps (8) is two, the top and bottom of the positioning hole (12) are mutually connected, the cross-section of the independent triangular wire wrap (8) is an isosceles triangle structure, the end support mechanism (2) is composed of a support ring (23), the surface of the support ring (23) is provided with a guide hole (24) and a threaded sleeve (25), and one side of the support ring (23) is also provided with a plug-in groove (26), the guide hole (24) and the threaded sleeve (25) are symmetrically provided at the top and bottom of the support ring (23), respectively, and the positioning component (3) includes a positioning vertical wire (27) and a positioning column (29), both ends of the positioning vertical wire (27) are integrally formed with plug-in blocks (28), the plug-in blocks (28) are embedded in the interior of the plug-in slot (26), the surface of the positioning vertical wire (27) is integrally formed with a positioning column (29), the top of the positioning column (29) is integrally formed with a center rod (30), the surface of the center rod (30) is sleeved with a welding sleeve (31), the top of the center rod (30) is integrally formed with a limit baffle (32), and the edge diameter of the welding sleeve (31) is the same as the edge diameter of the positioning column (29) and the limit baffle (32), and the welding sleeve (31) is integrally embedded in the interior of the positioning hole (12).
2. A stainless steel wire-wrapped screen pipe according to claim 1, characterized in that: The docking mechanism (5) comprises an inner lining sleeve (6), an inner flange (7) and an outer convex ring (18); a guide rod (19) is welded to one side of the outer convex ring (18); a screw rod (20) is inserted into the bottom of the outer convex ring (18); a hand wheel (22) is screwed to one end of the screw rod (20); and a retaining ring (21) is integrally formed on the surface of the screw rod (20).
3. A stainless steel wire-wrapped screen pipe according to claim 2, characterized in that: The clamping ring (21) is clamped on both sides of the outer convex ring (18), the hand wheel (22) and the screw rod (20) are assembled by screws, the surface of the liner sleeve (6) is in contact with the inner arc edge (9) of the independent triangular wire winding (8), the guide rod (19) passes through the inside of the guide hole (24), and the screw rod (20) passes through the inside of the threaded sleeve (25).
4. A stainless steel wire-wrapped screen pipe according to claim 1, characterized in that: The vertical wire assembly (4) comprises a first spliced vertical wire (13) and a second spliced vertical wire (14), and the bottoms of the first spliced vertical wire (13) and the second spliced vertical wire (14) are both integrally formed with an extension strip (15), and the bottoms of the extension strip (15) are integrally formed with a first welding piece (16) or a second welding piece (17).
5. A stainless steel wire-wrapped screen pipe according to claim 4, characterized in that: The first welding piece (16) or the second welding piece (17) is in an inclined state as a whole, and the first welding piece (16) or the second welding piece (17) is used to fit on both sides of the independent triangular winding wire (8), and the ends of the first welding piece (16) or the second welding piece (17) are in contact with each other, and the cross-sections of the first splicing vertical wire (13) and the second splicing vertical wire (14) are both semicircular structures.