CN202706943U - Oil extraction tubular column tail end protective short joint - Google Patents
Oil extraction tubular column tail end protective short joint Download PDFInfo
- Publication number
- CN202706943U CN202706943U CN 201220354872 CN201220354872U CN202706943U CN 202706943 U CN202706943 U CN 202706943U CN 201220354872 CN201220354872 CN 201220354872 CN 201220354872 U CN201220354872 U CN 201220354872U CN 202706943 U CN202706943 U CN 202706943U
- Authority
- CN
- China
- Prior art keywords
- tail end
- oil extraction
- tubular column
- flow string
- buffer body
- 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
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Abstract
The utility model provides an oil extraction tubular column tail end protective short joint which comprises a coupling which is connected with the lower end of an oil extraction tubular column, and a half-spindle shaped buffering body which is connected with the coupling. The coupling is utilized by the oil extraction tubular column tail end protective short joint to enable the half-spindle shaped buffering body to be connected on the lower end of the oil extraction tubular column. Compared with an existing guide cone, the buffering body does not have sharp edges, so that possibility that the oil extraction pipe damages cables is reduced. Compared with existing dead blocking, a spindle structure of the buffering body can more effectively solve the problem that the oil extraction pipe is tangled with the cables.
Description
Technical field
The utility model belongs to horizontal well liquid producing profile log auxiliary security technical field of tools, is specifically related to a kind of flow string tail end protection pipe nipple.
Background technology
Because the specific condition of horizontal well production profile needs to adopt crawl device to preset in advance downhole probe, then descends the flow string completion, the production profile of going again after production is normal is measured.
General flow string lower end can be with starting taper or dead stifled, and modal starting taper is with the oil pipe body angle of cutting sth. askew, an extremely stifled similar screw thread helmet.Under cable has entered the condition of well, rise, when lower tubular column and removal cable are measured, cable and oil pipe afterbody will be avoided mutual extruding, friction and winding, still, starting taper is too sharp-pointed, dead stifled easy entanglement cable needs the design specialized aid, guarantees job safety.
Summary of the invention
The purpose of this utility model is to provide a kind of flow string tail end simple in structure, dependable performance to protect pipe nipple.
For achieving the above object, the utility model has adopted following technical scheme.
Comprise the box cupling that links to each other with the flow string lower end and the buffer body of the half spindle shape that links to each other with box cupling.
Be provided with the connector with columnar protrusions on the described box cupling, buffer body is fixed on the columnar protrusions of connector.
Described box cupling links to each other with connector by screw thread.
Be provided with support spring in the described buffer body, support spring is placed on the columnar protrusions of connector.
Described buffer body adopts the castable rubber moulding.
Flow string tail end protection pipe nipple described in the utility model utilizes box cupling that the buffer body of half spindle shape is connected in the flow string lower end; simple in structure, dependable performance; compare with existing starting taper; buffer body does not have sharp-pointed corner angle; reduced the probability of flow string damage cable; with existing dead stifled comparing, the spindle body structure of buffer body can more effectively solve the problem of flow string and cable generation entanglement.
Description of drawings
Fig. 1 is structural representation of the present utility model; Among the figure: box cupling 1, connector 2, support spring 3, buffer body 4.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Referring to Fig. 1, the utility model comprises the buffer body 4 of the box cupling 1 that links to each other with the flow string lower end and the half spindle shape that links to each other with box cupling 1, be provided with the connector 2 with columnar protrusions on the described box cupling 1, buffer body 4 is fixed on the columnar protrusions of connector 2, described box cupling 1 links to each other with connector 2 by screw thread, be provided with support spring 3 in the described buffer body 4, support spring 3 is placed on the columnar protrusions of connector 2, and described buffer body 4 adopts the castable rubber moulding.
Embodiment
Flow string tail end protection pipe nipple comprises the parts such as box cupling, connector, support spring, buffer body.
The similar tubing coupling of box cupling, an end have the female connecting thread identical with oil pipe, are used for connecting last root oil pipe male thread end and connector.
Connector is used for connection coupling and support spring, buffer body, with between the box cupling for being threaded, and be the socket mode between the support spring, buffer body.
Support spring plays the effect of strengthening intensity.
Similar half spindle of buffer body profile is quality of rubber materials, and die casting generates, play damping, prevent flow string damage cable and with the purpose of cable winding.
Flow string tail end protection pipe nipple has effectively been protected cable, has solved the situation that cable fault and entanglement occur.
Claims (5)
1. a flow string tail end protection pipe nipple is characterized in that: comprise the box cupling (1) that links to each other with the flow string lower end and the buffer body (4) of the half spindle shape that links to each other with box cupling (1).
2. described a kind of flow string tail end is protected pipe nipple according to claim 1, and it is characterized in that: be provided with the connector (2) with columnar protrusions on the described box cupling (1), buffer body (4) is fixed on the columnar protrusions of connector (2).
3. described a kind of flow string tail end is protected pipe nipple according to claim 2, and it is characterized in that: described box cupling (1) links to each other with connector (2) by screw thread.
4. described a kind of flow string tail end is protected pipe nipple according to claim 2, and it is characterized in that: be provided with support spring (3) in the described buffer body (4), support spring (3) is placed on the columnar protrusions of connector (2).
5. described a kind of flow string tail end is protected pipe nipple according to claim 1, it is characterized in that: described buffer body (4) adopts the castable rubber moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220354872 CN202706943U (en) | 2012-07-20 | 2012-07-20 | Oil extraction tubular column tail end protective short joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220354872 CN202706943U (en) | 2012-07-20 | 2012-07-20 | Oil extraction tubular column tail end protective short joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202706943U true CN202706943U (en) | 2013-01-30 |
Family
ID=47587252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220354872 Expired - Fee Related CN202706943U (en) | 2012-07-20 | 2012-07-20 | Oil extraction tubular column tail end protective short joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202706943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153720A (en) * | 2014-05-15 | 2014-11-19 | 浙江海洋学院 | Touch-ground section protective device of vertical oil transportation tube |
-
2012
- 2012-07-20 CN CN 201220354872 patent/CN202706943U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153720A (en) * | 2014-05-15 | 2014-11-19 | 浙江海洋学院 | Touch-ground section protective device of vertical oil transportation tube |
| CN104153720B (en) * | 2014-05-15 | 2016-03-02 | 浙江海洋学院 | The segment protect device that contacts to earth of oil transportation standpipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20210720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |