CN201269067Y - Trip guiding head for gas drilling - Google Patents
Trip guiding head for gas drilling Download PDFInfo
- Publication number
- CN201269067Y CN201269067Y CNU2008200912125U CN200820091212U CN201269067Y CN 201269067 Y CN201269067 Y CN 201269067Y CN U2008200912125 U CNU2008200912125 U CN U2008200912125U CN 200820091212 U CN200820091212 U CN 200820091212U CN 201269067 Y CN201269067 Y CN 201269067Y
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- Prior art keywords
- glue core
- cavity
- rubber core
- flange
- core
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Abstract
The utility model relates to a trip guidance head for gas drilling, which mainly solves the problem of a prior rotary blowout preventer that seal cannot be kept when a lower part drilling tool assembly is tripped. The trip guidance head is characterized in that the upper end of an upper rubber core (1) is connected with a cylindrical upper cavity (2), the upper end of the upper cavity (2) is connected with a cylindrical lower cavity (3) which is internally provided with a step, a rubber core flange (4) is seated on the step in the lower cavity (3), the lower end of the rubber core flange (4) is connected with a lower rubber core (5), two semi-circular retainer rings (6) are embedded in an annular groove in the lower cavity (3) at the upper end of the rubber core flange (4), two semi-circular mudguards (7) which are connected on the rubber core flange (4) through a bolt are arranged in the retainer rings (6), the inside hole of the upper rubber core (1) and the inside hole of the lower rubber core (5) are variable-diameter holes with big upper part and small lower part, a seal ring (8) is arranged on the outside conical surface of the upper cavity (2), and the rubber core flange (4) is externally provided with the seal ring (8). The trip guidance head for gas drilling has the advantage that seal can be kept when the lower part drilling tool assembly is tripped.
Description
Technical field:
The utility model relates in the oil drilling field gas drilling used drilling tool, the especially gas drilling target seeker that makes a trip.
Background technology:
In the oil drilling field,, need rotating blowout preventer be installed at well head in order to guarantee drilling safety.The present rotating blowout preventer of producing is sealing drilling rod, drill pipe coupling effectively.But rotating blowout preventer can not keep sealing when removing bottomhole assembly at present, with the rotating blowout preventer poor compatibility, changes glue core program complexity.Thereby influence the development of gas drilling.
The utility model content:
When removing bottomhole assembly, can not keep sealing in order to solve existing rotating blowout preventer, with the rotating blowout preventer poor compatibility, change glue core program complicated problems, the utility model provides a kind of gas drilling target seeker that makes a trip, this gas drilling make a trip target seeker have with the rotating blowout preventer compatibility good, sealing performance is good, changes glue core program characteristic of simple.
The technical solution of the utility model is: this gas drilling target seeker that makes a trip comprises the gluing core, tyre step cylindrical shape epicoele in gluing core upper end is connected with, band step cylindrical shape cavity of resorption in the epicoele upper end is connected with, sit on the step in the cavity of resorption glue core flange is arranged, glue core flange lower end is connected with lower glue core, annular groove is built-in with two semicircle baffle rings in the cavity of resorption of glue core flange upper end, have in the baffle ring by bolt and be connected two semicircle dashboards above the glue core flange, gluing core and lower glue core endoporus are up big and down small reducing hole, epicoele male cone (strobilus masculinus) annular groove is built-in with sealing ring, and glue core flange is built-in with sealing ring with following cavity wall contact surface annular groove.
Epicoele outer lower end in the such scheme has annular groove, is connected with gluing in-core junction plate by bolt in the groove; Glue core flange outer lower end has annular groove, is connected with junction plate in the lower glue core by bolt in the groove.
The utlity model has following beneficial effect: this gas drilling makes a trip target seeker owing to take such scheme, by upper and lower glue core drilling rod and drill collar are realized double containment, thereby solved rotating blowout preventer and when removing bottomhole assembly, can not keep sealing problem, and it is good with the rotating blowout preventer compatibility, it is simple to change glue core program, finally improve drilling efficiency, reduced drilling cost.This gas drilling target seeker that makes a trip has with the rotating blowout preventer compatibility well thus, and sealing performance is good, changes glue core program characteristic of simple.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is Fig. 1 vertical views.
1-gluing core among the figure, 2-epicoele, 3-cavity of resorption, 4-glue core flange, 5-lower glue core, 6-baffle ring, 7-dashboard, 8-sealing ring, 9-junction plate.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By Fig. 1 in conjunction with shown in Figure 2, this gas drilling target seeker that makes a trip comprises gluing core 1, tyre step cylindrical shape epicoele 2 in gluing core 1 upper end is connected with, gluing core 1 and epicoele 2 connected modes are the annular grooves by epicoele 2 outer lower ends, be connected with junction plate 9 in the gluing core 1 by bolt in groove, this connected mode mode is loaded and unloaded.Epicoele 2 upper ends are connected with cavity of resorption 3, cavity of resorption 3 is a cylindrical shape, and interior band step, sit on the step in the cavity of resorption 3 glue core flange 4 is arranged, glue core flange 4 lower ends are connected with lower glue core 5, glue core flange 4 and lower glue core 5 connected modes are the annular grooves by glue core flange 4 outer lower ends, are connected with junction plate 9 in the lower glue core 5 by bolt in groove, and this connected mode mode is loaded and unloaded.Epicoele 2 mainly plays the effect of supporting gluing core 1 and lower glue core 5 with cavity of resorption 3, and the distance between assurance gluing core 1 and the lower glue core 5 is greater than 700 millimeters.Annular groove is built-in with two semicircle baffle rings 6 in the glue core flange 4 upper end cavity of resorptions 3, and the main effect of baffle ring 6 is fixing glue core flanges 4, prevents string on the glue core flange 4, and it is loading and unloading for convenience that baffle ring 6 adopts two semicircles.Have in the baffle ring 6 by bolt to be connected two semicircle dashboards 7 above the glue core flange 4, the main effect of dashboard 7 is to place restrictions on baffle ring 6, and anti-baffle ring 6 comes off, and another effect is to scrape off mud when drill string removes.Gluing core 1 and lower glue core 5 endoporus are up big and down small reducing hole, and epicoele 2 male cone (strobilus masculinus) annular grooves are built-in with sealing ring 8, guarantee the sealing between epicoele 2 and the rotating blowout preventer.Glue core flange 4 is built-in with sealing ring 8 with cavity of resorption 3 inwall contact surface annular grooves, and the here sealing is to prevent that gas is from this leakage.
During actual the use, this gas drilling target seeker that makes a trip is installed in the rotating blowout preventer, can normally uses.Owing to adopted high-tension gluing core 1 and lower glue core 5 double containments, gluing core 1 and lower glue core 5 supports are at interval greater than the structure in 700 millimeters spaces, glue core good springiness, resilience is rapid, thereby remedy present rotating blowout preventer can not keep sealing when removing bottomhole assembly deficiency, the lower tube string (for example spiral shell is held up) that can realize labyrinth passes through and the maintenance sealing, sealing performance is good, an assembly can guarantee to rise next time and bore under the air pressure of 5MPa, the assembly shell service intervals reaches 12 months.And, make that replacing lower glue core 5 and gluing core 1 program are simple because of adopting the groove inner bolt to connect lower glue core 5 and gluing core 1 and dashboard 7 and baffle ring 6 fixing glue core flanges 4.At epicoele 2 male cone (strobilus masculinus)s sealing ring 8 modes are set because of adopting again, make and compatible good raising of rotating blowout preventer, finally improved drilling efficiency, reduced drilling cost.This gas drilling target seeker that makes a trip has with the rotating blowout preventer compatibility well thus, and sealing performance is good, changes glue core program characteristic of simple.
Claims (3)
1, a kind of gas drilling target seeker that makes a trip, comprise gluing core (1), it is characterized in that: tyre step cylindrical shape epicoele (2) in gluing core (1) upper end is connected with, band step cylindrical shape cavity of resorption (3) in epicoele (2) upper end is connected with, sit on the interior step of cavity of resorption (3) glue core flange (4) is arranged, glue core flange (4) lower end is connected with lower glue core (5), the interior annular groove of glue core flange (4) upper end cavity of resorption (3) is built-in with two semicircle baffle rings (6), have in the baffle ring (6) by bolt and be connected two semicircle dashboards (7) above the glue core flange (4), gluing core (1) and lower glue core (5) endoporus are up big and down small reducing hole, epicoele (2) male cone (strobilus masculinus) annular groove is built-in with sealing ring (8), and glue core flange (4) is built-in with sealing ring (8) with cavity of resorption (3) inwall contact surface annular groove.
2, the gas drilling according to claim 1 target seeker that makes a trip, it is characterized in that: epicoele (2) outer lower end has annular groove, is connected with the interior junction plate of gluing core (1) (9) by bolt in the groove.
3, the gas drilling according to claim 1 target seeker that makes a trip, it is characterized in that: glue core flange (4) outer lower end has annular groove, is connected with the interior junction plate of lower glue core (5) (9) by bolt in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200912125U CN201269067Y (en) | 2008-10-28 | 2008-10-28 | Trip guiding head for gas drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200912125U CN201269067Y (en) | 2008-10-28 | 2008-10-28 | Trip guiding head for gas drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201269067Y true CN201269067Y (en) | 2009-07-08 |
Family
ID=40841666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200912125U Expired - Fee Related CN201269067Y (en) | 2008-10-28 | 2008-10-28 | Trip guiding head for gas drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201269067Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528851A (en) * | 2013-10-31 | 2014-01-22 | 张文良 | Road surface core drilling machine mud guard device manufacturing method |
-
2008
- 2008-10-28 CN CNU2008200912125U patent/CN201269067Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528851A (en) * | 2013-10-31 | 2014-01-22 | 张文良 | Road surface core drilling machine mud guard device manufacturing method |
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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: 20090708 Termination date: 20171028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |