CN2706581Y - Flexible sand filtering pipe column - Google Patents
Flexible sand filtering pipe column Download PDFInfo
- Publication number
- CN2706581Y CN2706581Y CN 200420051870 CN200420051870U CN2706581Y CN 2706581 Y CN2706581 Y CN 2706581Y CN 200420051870 CN200420051870 CN 200420051870 CN 200420051870 U CN200420051870 U CN 200420051870U CN 2706581 Y CN2706581 Y CN 2706581Y
- Authority
- CN
- China
- Prior art keywords
- sand
- flexible
- utility
- model
- horizontal well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a flexible sand filtering pipe column, which belongs to the mechanical product of the oil industrial aspect. The utility model is a sand filtering pipe column used for the sand control in the horizontal well, the side drilling horizontal well, etc. in the oil field and is a sand control device of the horizontal well and the side drilling horizontal well. The utility model is composed of a connecting hoop, a central pipe, a filter pipe assembly, a connecter, an outer connecting sleeve, a sealing ring and a flexible short joint. The utility model is characterized in that one end is combined by the connecting hoop (1), the central pipe (2) and a sand filtering assembly (3), and the other end is composed of the connecter (4), the outer connecting sleeve (5), the sealing ring (6) and the flexible short joint (7); the connecter (4) and the outer connecting sleeve (5) are assembled into the concentric inner spherical surface shape, the outer spherical surface of the upper end of the flexible short joint (7) is arranged in the inner spherical surface, and the flexible sand filtering pipe column is connected with the central pipe of the sand filtering pipe. The utility model has the main advantages of simple processing, safe and reliable use, labor saving and time saving when the pipe column is inserted, which reduces the abrasion of the pipe column and improves the sand control construction effect, etc.
Description
One, technical field
The utility model belongs to the engineering goods of petroleum industry aspect, relates to a kind of flexible filter sand tubing string, is a kind of filter sand tubing string that oilfield horizontal well sidetrack horizontal well etc. carries out sand control that is used for, and belongs to a kind of sand control installation of horizontal well sidetrack horizontal well.
Two, background technology
Aspect petroleum industry, present horizontal well sidetrack horizontal well both domestic and external mainly contains two kinds by existing sand control technique by sand control type branch, a kind of is filter sand tubing string sand control, its structure is that inner and outer pipes is arranged, and uniform several holes is arranged on the inner and outer pipes, in the concentric annular space of inner and outer pipes, be filled with the filtering layer material that inside and outside two sides covers silk screen, the end welded seal, directly be lowered to horizontal well sidetrack horizontal well oil reservoir position and be used for sand control, this filter sand tubing string is lowered in the process limited because of the elasticity of flexure of tubing string own, make sand screen major gene stress and effect of attrition by bending in the process of going into the well, the fracture of filtering layer material often appears, attenuation, outer tube is worn out etc., and the filter sand tubing string just is damaged before arriving the oil reservoir position.The 2nd, the wire-wrapped screen gravel filling sand prevention, it is as sand control installation with wrapping wire pipe tubing string, be lowered to horizontal well sidetrack horizontal well oil reservoir position and be used for sand control, wire-wrapped screen tubing string result is by the vertical lacing wire of stainless steel wire, trapezoidal wrapping wire is pressed the conglobate wire-wrapped screen of specific criteria coiling, its slit requires very strict, assembly welding promptly becomes the sand control installation that can be used for gravel pack on central tube with holes then, but because the exceptional well body structure of horizontal well sidetrack horizontal well, fashionable under wire-wrapped screen, because of stress and wearing and tearing by bending, very easily make the variation of sieve seam and gravel filling sand prevention was lost efficacy.
Three, summary of the invention
According to the problems referred to above, the purpose of this utility model is exactly the above-mentioned shortcoming that overcomes prior art, makes a kind of flexible filter sand tubing string; Solution can be rigidly connected, plastic deformation, and sealing, not easy to wear, the product that sand controlling result is good.It is made up of box cupling, central tube, chimney filter assembly, joint, connection overcoat, sealing ring, flexible pipe nipple etc.
Upper end of joint is threaded with the central tube lower end, and the joint lower end is a smooth Internal Spherical Surface, at the joint external surface sealing ring is housed, and outer apply mechanically screw thread and be connected as a single entity with connecting, connect the overcoat lower end and be processed with smooth Internal Spherical Surface, form together intracardiac sphere with the Internal Spherical Surface of joint, flexible pipe nipple upper end is processed with smooth spherical outside surface, in pack into joint and the sphere that connects overcoat formation.
Compared with prior art, major advantage is to have processing simply, and safe and reliable, tubing string is lowered to time saving and energy saving, reduces the tubing string wearing and tearing, has improved sand control construction effect etc.
Four, description of drawings
As figure is structural representation of the present utility model.
Among the figure 1, box cupling, 2, central tube, 3, the filter sand assembly, 4, joint, 5, connect overcoat, 6, sealing ring, 7, flexible pipe nipple,
Five, embodiment
As seen from the figure, the utility model one end is by box cupling 1, central tube 2 and 3 combinations of filter sand assembly, the other end by joint 3 with connect overcoat 5, sealing ring 6 and flexible pipe nipple 7 and form, to be assembled into concentric endosphere planar with connecting overcoat 5 for joint 4, the spherical outside surface of flexible pipe nipple 7 upper ends is packed in it; This flexibility filter sand tubing string is connected with the sand screen central tube; Connect overcoat 5 lower end sphere minimum diameters and flexible pipe nipple 7 face of cylinder external diameters and be combined with the gap, and outwards be conical surface inclination.The utility model can occur bending and deformation according to the degree of crook and the crooked orientation of curved portion when passing through the curved portion of horizontal well sidetrack horizontal well when going into the well, avoided filter sand tubing string or wire-wrapped screen tubing string in being lowered to process, to damage because of rigid bending causes tubing string, sphere only connects can flexible modification, and having advantages of higher tensile strength, the utility model can use according to the many endowel polyphones of well segment length.
Claims (2)
1, flexible filter sand tubing string, by box cupling, central tube, chimney filter assembly with joint, connect overcoat, sealing ring and flexible pipe nipple and form, it is characterized in that an end is by box cupling (1), central tube (2) and filter sand assembly (3) combination, the other end connects overcoat (5), sealing ring (6) and flexible pipe nipple (7) by joint (4) and forms, to be assembled into concentric endosphere planar with connecting overcoat (5) for joint (4), the spherical outside surface of flexible pipe nipple (7) upper end is packed in it, and this flexibility filter sand tubing string is connected with the sand screen central tube.
2,, it is characterized in that connecting overcoat (5) lower end sphere minimum diameter and flexible pipe nipple (7) face of cylinder external diameter is combined with the gap, and outwards be conical surface inclination by the described flexible filter sand tubing string of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420051870 CN2706581Y (en) | 2004-06-24 | 2004-06-24 | Flexible sand filtering pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420051870 CN2706581Y (en) | 2004-06-24 | 2004-06-24 | Flexible sand filtering pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2706581Y true CN2706581Y (en) | 2005-06-29 |
Family
ID=34851720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420051870 Expired - Fee Related CN2706581Y (en) | 2004-06-24 | 2004-06-24 | Flexible sand filtering pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2706581Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779575A (en) * | 2019-03-14 | 2019-05-21 | 中国石油化工股份有限公司 | A kind of deep camber wellbore sand control completion tubing string and completion method |
| CN113006744A (en) * | 2021-04-30 | 2021-06-22 | 刘刚 | Well drilling method and well drilling equipment suitable for natural gas hydrate stratum |
-
2004
- 2004-06-24 CN CN 200420051870 patent/CN2706581Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779575A (en) * | 2019-03-14 | 2019-05-21 | 中国石油化工股份有限公司 | A kind of deep camber wellbore sand control completion tubing string and completion method |
| CN113006744A (en) * | 2021-04-30 | 2021-06-22 | 刘刚 | Well drilling method and well drilling equipment suitable for natural gas hydrate stratum |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202561310U (en) | Pipe installation connecting device | |
| CN102272408A (en) | Tubular drill string component and corresponding drill string | |
| CN106968613A (en) | A kind of cable protection instrument crossed on the outside of sliding sleeve | |
| CN2706581Y (en) | Flexible sand filtering pipe column | |
| CN203515346U (en) | Special lined oil pipe | |
| CN209603949U (en) | The flexible sand control screen of super short radial horizontal well | |
| CN107725652A (en) | The solid reverse acting spiral dual spring of pipe-dredging | |
| CN104563904B (en) | Sealing connecting structure of casing of gas well | |
| CN103925363B (en) | The metal o-ring of elastic deformation during a kind of stress | |
| CN2903337Y (en) | Oil pipe insulating short joint | |
| CN206769837U (en) | A kind of flexible connector for being used to connect coiled tubing | |
| CN209067148U (en) | Well mouth sealing device | |
| CN207398801U (en) | A kind of antiwind strain relief clamp of vertical | |
| CN202165022U (en) | Anti-bending oil tube threaded connection structure | |
| CN202348141U (en) | Drill pipe joint screw thread with high torsion resistance | |
| CN207081438U (en) | Hydraulic pressure inductive displacement transducer guide pin bushing | |
| CN203271613U (en) | Joint with variable diameters and high wear resistance of oil well fracturing pipeline | |
| CN201763267U (en) | Anti-bending oil sleeve threaded connection structure | |
| CN201110136Y (en) | Connecting apparatus capable of contrarotation | |
| CN205805434U (en) | A kind of oil pipe connector and use the oil piping system of this adapter | |
| CN101864906A (en) | Bending-resistant oil casing threaded connection structure | |
| CN207179004U (en) | A kind of underwater Management of Pipeline Mechanical Equipment connector | |
| CN101802344A (en) | Connections for expandable tubulars | |
| CN204419063U (en) | The partially terraced sealing thread syndeton of a kind of enhancement mode | |
| CN2489093Y (en) | Sand prevention liner tube made from sintered metal fiber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |