CN210134853U - Coiled tubing blowout preventer - Google Patents
Coiled tubing blowout preventer Download PDFInfo
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- CN210134853U CN210134853U CN201920969180.2U CN201920969180U CN210134853U CN 210134853 U CN210134853 U CN 210134853U CN 201920969180 U CN201920969180 U CN 201920969180U CN 210134853 U CN210134853 U CN 210134853U
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- rubber cylinder
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Abstract
The utility model provides a coiled tubing blowout preventer, including coiled tubing, uide bushing, slips, main housing, slips piston, packing element, stand pipe, bottom shell and hydraulic pressure joint, the uide bushing is established to coiled tubing outside cover, the uide bushing lower extreme sets up the slope recess inwards, sets up the middle part shell below the uide bushing, middle part shell toper one end sets up the slips guide way, sets up slips piston and packing element piston between middle part shell and the coiled tubing, slips piston and the one end that is close to the packing element piston set up the recess, packing element piston is close to slips piston both ends and sets up the boss, and the middle part shell is located oil groove and sets up the screw through-hole, and the middle part shell passes through screw through-hole fixed connection hydraulic pressure joint, sets up the bottom shell between the boss that packing element piston kept away from slips piston one end and the middle part shell, and the bottom shell is, one end of the rubber cylinder, which is far away from the rubber cylinder piston, is provided with a guide pipe. The beneficial effects of the utility model are that it is convenient more fast to make oil pipe prevent spouting the locking.
Description
Technical Field
The utility model belongs to the field of machinery, especially, relate to a coiled tubing preventer.
Background
Can adopt coiled tubing to construct during present aboveground construction, there are some oil gas wells and need not take the area and just can play oil pipe down, but need injection pressure when carrying out the construction, current coiled tubing's construction equipment is huge, and the process of installation is also very complicated, can not reach the purpose of quick construction, but does not have one kind at present and can make the quick convenient blowout preventer of installation more.
The coiled tubing blowout prevention and locking device adopted at present is quite large, the requirements on installation and use are high, a site needs to be prepared in advance, long-time preparation work is needed, and the working efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a less, the quick coiled tubing preventer of installation of volume especially is fit for the construction work of low-pressure well and non-pressure well.
The technical scheme of the utility model is that: a coiled tubing blowout preventer comprises a coiled tubing, a guide sleeve, slips, a main housing, a slip piston, a rubber cylinder, a guide pipe, a bottom housing and a hydraulic joint, wherein the guide sleeve is sleeved outside the coiled tubing, an inclined groove is formed in the lower end of the guide sleeve inwards, a middle housing is arranged below the guide sleeve, one end of the middle housing, which is close to the guide sleeve, is arranged to be conical, the inclined angle of the conical end of the middle housing is the same as that of the inner side groove of the guide sleeve, the tapered end of the middle housing is provided with the slip guide groove, the slip guide grooves are symmetrically arranged in two numbers, the slip piston and the rubber cylinder piston are arranged between the middle housing and the coiled tubing, the slip piston and one end, which is close to the rubber cylinder piston, are provided with grooves, the slip piston groove is positioned between the slip piston and the, the thickness of a boss of a rubber cylinder piston close to a slip piston is consistent with the thickness of a groove of the slip piston, the thickness of the boss of the rubber cylinder piston close to the slip piston is in interference fit with the groove of the slip piston, the boss of the rubber cylinder piston far away from one end of the slip piston is close to a continuous oil pipe, an oil groove is arranged at the joint of the slip piston and the rubber cylinder piston close to a middle shell, a threaded through hole is arranged at the oil groove, the middle shell is fixedly connected with a hydraulic joint through the threaded through hole, a bottom shell is arranged between the boss of the rubber cylinder piston far away from one end of the slip piston and the middle shell, the rubber cylinder is arranged close to the rubber cylinder piston, and a guide pipe is arranged.
Slips are arranged in the slip guide groove, slides are arranged outside two side walls of the slip guide groove, bosses are arranged at two ends of the outer side wall of each slip, the outer side of each slip is provided with an inclined surface, the inclined angle of each slip inclined surface is the same as the inclined angle of the inner groove of the guide sleeve, a boss is arranged at one end, close to a slip piston, of each slip, and the boss of each slip is inserted between the middle shell and the continuous oil pipe.
Furthermore, tapered teeth are arranged on one surface, close to the coiled tubing, of the slip.
Furthermore, the side face of the slip piston close to the middle shell and the rubber cylinder piston is provided with a sealing groove, a sealing ring is arranged in the sealing groove of the slip piston, and the sealing rings are arranged in a plurality.
Furthermore, the side face of the rubber cylinder piston, which is close to the middle shell and the bottom shell, is provided with a sealing groove, and a plurality of sealing rings are arranged in the sealing groove of the rubber cylinder piston.
Furthermore, chamfers are arranged at the end parts of the middle shell and the bottom shell.
The utility model has the advantages and positive effects that:
1. the slip is matched with the slip piston, so that the locking of the inner continuous oil pipe is effectively guaranteed, the slip is pushed and locked by the slip piston through pressurization, and only pressure needs to be released during unlocking, so that the locking device is quick and convenient to use and small in size.
2. Due to the fact that the rubber sleeve is matched with the rubber sleeve piston, the coiled tubing is effectively locked when pressurization is carried out, the slip at the top is matched, movement of the coiled tubing is prevented, meanwhile, the sealing performance inside the blowout preventer is guaranteed, and oil leakage is prevented.
3. Because the slip piston and the rubber cylinder piston are provided with the sealing rings, the oil liquid is ensured not to be leaked in the pressurizing process, and the leakage and the damage caused by overlarge pressure are prevented.
4. Because the whole joint depends on the coiled tubing outside, the volume is less to it is very simple convenient to carry and seal, can seal work fast during the use, practices thrift operating time for the operating speed, has practiced thrift the space simultaneously, accelerates the installation rate.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic view of a slip guide groove of the present invention;
figure 3 is a schematic view of the slips of the present invention.
In the figure:
1. coiled tubing 2, uide bushing 3, slips
4. Middle shell 5, slips piston 6, rubber cylinder piston
7. Rubber cylinder 8, guide pipe 9 and bottom shell
10. Hydraulic joint 11 and slip guide groove
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-3:
a coiled tubing blowout preventer comprises a coiled tubing 1, a guide sleeve 2, a slip 3, a middle shell 4, a slip piston 5, a rubber sleeve piston 6, a rubber sleeve 7, a guide pipe 8, a bottom shell 9 and a hydraulic joint 10, wherein the guide sleeve 2 is sleeved outside the coiled tubing 1, an inclined groove is formed in the lower end of the guide sleeve 2 inwards, the middle shell 4 is arranged below the guide sleeve 2, one end of the middle shell 4, which is close to the guide sleeve 2, is arranged to be tapered, the inclined angle of the tapered end of the middle shell 4 is the same as the inclined angle of the groove in the inner side of the guide sleeve 2, a slip guide groove 11 is formed in the tapered end of the middle shell 4, the slip guide grooves 11 are symmetrically arranged in two numbers, the slip piston 5 and the rubber sleeve piston 6 are arranged between the middle shell 4 and the coiled tubing 1, a groove is formed in one end, which is close to the rubber sleeve piston 6, and, the rubber cylinder piston 6 is provided with bosses close to two ends of the slip piston 5, the boss thickness of the rubber cylinder piston 6 close to the slip piston 5 is consistent with the groove of the slip piston 5, the boss thickness of the rubber cylinder piston 6 close to the slip piston 5 is in interference fit with the groove of the slip piston 5, the boss of one end, far away from the slip piston 5, of the rubber cylinder piston 6 is close to the continuous oil pipe 1, an oil groove is formed in the joint of the slip piston 5 and the rubber cylinder piston 6 close to the middle shell 4, a threaded through hole is formed in the position, located at the oil groove, of the middle shell 4, the middle shell 4 is fixedly connected with the hydraulic joint 10 through the threaded through hole, a bottom shell 9 is arranged between the boss of one end, far away from the slip piston 5, of the rubber cylinder piston 6 and the middle shell 4, the bottom shell 9 is provided with a rubber cylinder 7 close.
And one surface of the slip 3, which is close to the coiled tubing 1, is provided with tapered teeth.
The side face, close to the middle shell 4 and the rubber cylinder piston 6, of the slip piston 5 is provided with a sealing groove, and a plurality of sealing rings are arranged in the sealing groove of the slip piston 5.
The side faces, close to the middle shell 4 and the bottom shell 9, of the rubber cylinder piston 6 are provided with sealing grooves, and a plurality of sealing rings are arranged in the sealing grooves of the rubber cylinder piston 6.
The ends of the middle housing 4 and the bottom housing 9 are chamfered.
The working process of the example is as follows: in the using process, the bottom shell 9 is firstly placed on a well mouth or an oil pipe, then the coiled oil pipe 1 is fixed and positioned through the guide pipe 8 from top to bottom and then is placed into the well mouth or the oil pipe, when the coiled oil pipe 1 reaches a designated position, hydraulic pressure is firstly input through the hydraulic joint 10 of the middle shell 4, the slip piston 5 is pushed upwards through the hydraulic pressure, the rubber cylinder piston 6 is pushed downwards at the same time, the slip piston 5 pushes the slip 3, the inclined plane on the side surface of the slip in the upward running process is matched with the guide sleeve 2, the pressure of the slip 3 on the coiled oil pipe 1 is increased along with the movement, the locking force is provided, the tooth profile in the slip 3 is increased to prevent slipping, the rubber cylinder 7 is extruded in the downward running process of the rubber cylinder piston 6, the rubber cylinder 7 is locked on the coiled oil pipe 1 through extrusion deformation, and meanwhile, the rubber cylinder 7 seals the device, prevent the oil leak, form an airtight space, after work, cancel hydraulic system's pressure, lose pressure back packing element 7 and slips 3 and return to the normal position, take out that coiled tubing 1 can be quick safe, the overall device occupation space is little, and locking speed is fast, and convenient to use is succinct for work efficiency.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (5)
1. The utility model provides a coiled tubing preventer, includes coiled tubing (1), uide bushing (2), slips (3), middle part shell (4), slips piston (5), packing element piston (6), packing element (7), stand pipe (8), bottom shell (9) and hydraulic pressure joint (10), its characterized in that: the continuous oil pipe (1) is externally sleeved with a guide sleeve (2), the lower end of the guide sleeve (2) is inwards provided with an inclined groove, a middle shell (4) is arranged below the guide sleeve (2), one end of the middle shell (4) close to the guide sleeve (2) is arranged to be conical, the conical one end inclined angle of the middle shell (4) is the same as the inclined angle of the inner side groove of the guide sleeve (2), one conical end of the middle shell (4) is provided with a slip guide groove (11), the slip guide grooves (11) are symmetrically arranged to be two, a slip piston (5) and a rubber sleeve piston (6) are arranged between the middle shell (4) and the continuous oil pipe (1), the slip piston (5) and one end close to the rubber sleeve piston (6) are provided with grooves, the grooves of the slip piston (5) are arranged between the slip piston (5) and the continuous oil pipe (1), the rubber sleeve piston (6) is arranged close to the, the thickness of the boss of the rubber cylinder piston (6) close to the slip piston (5) is consistent with the groove of the slip piston (5), the thickness of the boss of the rubber cylinder piston (6) close to the slip piston (5) is in interference fit with the groove of the slip piston (5), a boss at one end of the rubber cylinder piston (6) far away from the slip piston (5) abuts against the coiled tubing (1), an oil groove is arranged at the joint of the slip piston (5) and the rubber cylinder piston (6) close to the middle shell (4), a thread through hole is arranged at the oil groove of the middle shell (4), the middle shell (4) is fixedly connected with a hydraulic joint (10) through the thread through hole, a bottom shell (9) is arranged between a boss at one end of the rubber cylinder piston (6) far away from the slip piston (5) and the middle shell (4), the bottom shell (9) is provided with a rubber cylinder (7) close to the rubber cylinder piston (6), a guide pipe (8) is arranged at one end of the rubber cylinder (7) far away from the rubber cylinder piston (6);
slips (3) are arranged inside slips guide groove (11), slips guide groove (11) both sides wall outside sets up the slide, slips (3) lateral wall both ends set up the boss, slips (3) outside sets up to the inclined plane, and slips (3) inclined plane inclination is the same with uide bushing (2) inside recess inclination, and slips (3) are close to slips piston (5) one end and set up the boss, and the boss of slips (3) is pegged graft between middle part shell (4) and coiled tubing (1).
2. The coiled tubing blowout preventer of claim 1, wherein: one surface of the slip (3) close to the coiled tubing (1) is provided with tapered teeth.
3. The coiled tubing blowout preventer of claim 1, wherein: the side face of the slip piston (5) close to the middle shell (4) and the rubber cylinder piston (6) is provided with a sealing groove, and a plurality of sealing rings are arranged in the sealing groove of the slip piston (5).
4. The coiled tubing blowout preventer of claim 1, wherein: the side face of the rubber cylinder piston (6) close to the middle shell (4) and the bottom shell (9) is provided with a sealing groove, and a plurality of sealing rings are arranged in the sealing groove of the rubber cylinder piston (6).
5. The coiled tubing blowout preventer of claim 1, wherein: chamfers are arranged at the end parts of the middle shell (4) and the bottom shell (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969180.2U CN210134853U (en) | 2019-06-26 | 2019-06-26 | Coiled tubing blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969180.2U CN210134853U (en) | 2019-06-26 | 2019-06-26 | Coiled tubing blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210134853U true CN210134853U (en) | 2020-03-10 |
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ID=69706783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920969180.2U Active CN210134853U (en) | 2019-06-26 | 2019-06-26 | Coiled tubing blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210134853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012687B (en) * | 2020-10-27 | 2021-01-22 | 山东威盟石油机械有限公司 | Efficient blowout prevention box for coiled tubing |
-
2019
- 2019-06-26 CN CN201920969180.2U patent/CN210134853U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012687B (en) * | 2020-10-27 | 2021-01-22 | 山东威盟石油机械有限公司 | Efficient blowout prevention box for coiled tubing |
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