CN206220873U - A kind of tubing string for being capable of achieving dragging hydraulic jetting fracturing with pressure - Google Patents
A kind of tubing string for being capable of achieving dragging hydraulic jetting fracturing with pressure Download PDFInfo
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- CN206220873U CN206220873U CN201621100315.4U CN201621100315U CN206220873U CN 206220873 U CN206220873 U CN 206220873U CN 201621100315 U CN201621100315 U CN 201621100315U CN 206220873 U CN206220873 U CN 206220873U
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Abstract
The utility model provides a kind of tubing string for being capable of achieving dragging hydraulic jetting fracturing with pressure, including ground preventer group, oil pipe, safety give up, bivalve ball-and-seat, injector, packer, guiding check valve and sleeve pipe, it is characterised in that：The ground preventer group is installed on well head, the oil pipe and sleeve pipe are installed in well, oil pipe is located in sleeve pipe, and all include horizontal segment and vertical section, safety is connected with the oil pipe horizontal segment to give up, oil pipe end is connected with bivalve ball-and-seat in turn, injector, packer and guiding check valve, the utility model simple structure, it is easy to use, continuous perforating and fracturing construction can be carried out, avoid because of the increased construction period of open flow, reduce environmental pollution, reduce because of open flow simultaneously, the damage that backwash is caused to instrument, improve tool life, reduce construction period and construction intensity.
Description
Technical field
The utility model is related to oil field compression fracture technical field, it is adaptable under the conditions of casing cementing, with pressure can drag and realize water
Horizontal well hydraulic jetting fracturing is transformed.
Background technology
Country's horizontal well in segments reforming technology is broadly divided into motionless fracturing string and drag fracturing tubing string at present, and oil field is pressed
More use drag fracturing tubing string staged fracturing is split, coiled tubing dragging and conventional oil pipe dragging is broadly divided into, is celebrated due to long
Oil field is generally loess geomorphy, is limited by well site road, and most of well Operation Tubing Aggregate cannot pass through, so generally all using
Conventional oil pipe dragging, main technique is hydraulic jet perforation, bottom packer packing technique.But because conventional oil pipe cannot band
Pressure dragging, has transformed one section every time, after being required for waiting crack closure, carries out open flow, returns and wash operation, drilling tool is then above carried again and is arrived
Next step transforms position, so substantially prolongs construction period, at most 1-2 sections of construction in usual a day.
Utility model content
The purpose of this utility model is the problem for overcoming the conventional oil pipe construction cycle long, there is provided one kind is capable of achieving dragging with pressure
The tubing string of hydraulic jetting fracturing, with pressure can drag and realize hydraulic jet perforation, pressure break, improve efficiency of construction.
The technical solution of the utility model there is provided a kind of tubing string for being capable of achieving dragging hydraulic jetting fracturing with pressure, including
Ground preventer group, oil pipe, safety are given up, bivalve ball-and-seat, injector, packer, guiding check valve and sleeve pipe, and its feature exists
In：The ground preventer group is installed on well head, and the oil pipe and sleeve pipe are installed in well, and oil pipe is located in sleeve pipe, and all
Including horizontal segment and vertical section, safety is connected with the oil pipe horizontal segment and is given up, oil pipe end is connected with bivalve single current in turn
Valve, injector, packer and guiding check valve.
The bivalve ball-and-seat includes outer barrel, upper valve and drop valve, and the upper valve and drop valve are vertically connected with and pacify
Loaded on outer barrel.
The structure of the upper valve and drop valve is just the same.
The upper valve and drop valve include valve seat, single current valve body and valve body respectively, and the single current valve body is connected to valve seat
Lower outside, the valve body is rotatably connected on single current valve body by spring catch, and valve body is located at the lower end of valve seat.
It is cylindrical hole that the valve seat is internal, and the single current valve inner is provided with center flow channels, and the spring catch is along vertical
The wall portion of single current valve body is arranged in the axis direction of single current valve body, the valve body is connected on spring catch by torsion spring,
So that valve physical efficiency is rotated by torsion spring around spring catch, the upper end of the valve body is sitting in the cylindrical hole bottom of valve seat.
Sealing ring is provided between the valve seat and outer barrel.
The beneficial effects of the utility model：
(1) this tubular column structure for being capable of achieving dragging hydraulic jetting fracturing with pressure that the utility model is provided is simple, uses
It is convenient, continuous perforating and fracturing construction can be carried out, it is to avoid because of the increased construction period of open flow, environmental pollution is reduced, while reducing
Because open flow, backwash are to the damage caused by instrument, tool life is improve, reduce construction period and construction intensity.
(2) this bivalve single current being capable of achieving in the tubing string of dragging hydraulic jetting fracturing with pressure that the utility model is provided
Valve, in direct circulation, realizes the big orifice of fluid passage, it is ensured that in perforation and pressing crack construction, does not produce throttle effect, protects
Normal construction is demonstrate,proved, in trip-out process, during due to reacting cycle, passage can be automatically switched off, it is ensured that fluid will not be from oil pipe overflow.
(3) this tubing string for being capable of achieving dragging hydraulic jetting fracturing with pressure that the utility model is provided is by setting valve body
Upper end be arranged on valve seat cylindrical hole in, and can be left with the rotation of valve body valve seat cylindrical hole, increase upper valve and
The fluid passage of drop valve, such that it is able to carry out the operations such as lower drilling tool pitching, bivalve ball-and-seat includes two structure phases in addition
Same and separate upper valve and drop valve, after a valve body is damaged, another valve body can also continue to work, and increase sets
Standby security reliability.
(4) this tubing string for being capable of achieving dragging hydraulic jetting fracturing with pressure that the utility model is provided is by single current valve body
Centre be provided with radial groove so that valve body has bigger accommodation space when rotating down, and then causes that center flow channels become
Greatly, and the installation of valve body, spring catch and torsion spring has been also convenient for it.
(5) the utility model provide it is this be capable of achieving it is with pressure dragging hydraulic jetting fracturing tubing string by valve seat with it is outer
Sealing ring is provided between cylinder, the sealing of valve seat and outer barrel is increased, prevents working solution from entering between valve seat and outer barrel.
Brief description of the drawings
Fig. 1 is the structural representation of the tubing string that the utility model can realize dragging hydraulic jetting fracturing with pressure；
Fig. 2 is the structural representation of the utility model bivalve ball-and-seat device；
Fig. 3 is the structural representation of the utility model upstream valve and drop valve.
Description of reference numerals：1st, ground preventer group；2nd, oil pipe；3rd, safety is given up；4th, bivalve ball-and-seat；5th, injector；
6th, packer；7th, guiding check valve；8th, sleeve pipe；9th, outer barrel；10th, upper valve；11st, drop valve；12nd, valve seat；13rd, valve body；14th, turn round
Square spring；15th, spring catch；16th, single current valve body；17th, sealing ring.
Specific embodiment
The utility model is described in further details below with reference to accompanying drawing.
Embodiment 1：
For the problem for overcoming the conventional oil pipe construction cycle long, a kind of as shown in Figure 1 being capable of achieving is present embodiments provided
The tubing string of dragging hydraulic jetting fracturing with pressure, including ground preventer group 1, oil pipe 2, safe 3, bivalve ball-and-seat 4 of giving up, injection
Device 5, packer 6, guiding check valve 7 and sleeve pipe 8, it is characterised in that：The ground preventer group 1 is installed on well head, described
Oil pipe 2 and sleeve pipe 8 are installed in well, and oil pipe 2 is located in sleeve pipe 8, and all include horizontal segment and vertical section, the level of the oil pipe 2
Safety is connected with section and gives up 3, the end of oil pipe 2 is connected with bivalve ball-and-seat 4, injector 5, packer 6 in turn and is oriented to single current
Valve 7.
The fracturing process that this tubing string for being capable of achieving dragging hydraulic jetting fracturing with pressure of the present utility model is used is as follows：
Step 1) enter this tubing string for being capable of achieving dragging hydraulic jetting fracturing with pressure of the present utility model down first, with injection
Device alignment first paragraph design improvement position, completes first paragraph perforation：Perforating fluid is injected from oil pipe 2, hydraulic jet perforation is carried out, when
Load fluid to injector nozzle distance 200m when, improve discharge capacity abrasive perforating.
Step 2) after perforation finishes, the gate of sleeve pipe 8 is closed, after after gash fracture, carry out main pressing crack construction.
Step 3) first paragraph construction finish after, dismantle well head, by operate ground preventer group 1 block oil pipe 2 and sleeve pipe 8
Annular space, oil pipe is blocked by the functional realiey of bivalve ball-and-seat 4, so as to realize dragging tubing string with pressure, until tubing string is adjusted
It is whole to second segment perforating site.
Step 4) repeat step 1-3 completes the pressing crack construction of remaining section, after construction is finished, disposably put from sleeve pipe 8
Spray, finally plays out tubing string.
This tubular column structure for being capable of achieving dragging hydraulic jetting fracturing with pressure of the present utility model is simple, easy to use, can
Carry out continuous perforating and fracturing construction, it is to avoid because of the increased construction period of open flow, environmental pollution is reduced, while reducing because putting
The damage that spray, backwash are caused to instrument, improves tool life, reduces construction period and construction intensity.
Embodiment 2：
On the basis of embodiment 1, as shown in Fig. 2 the bivalve ball-and-seat 4 includes outer barrel 9, upper valve 10 and drop valve
11, the upper valve 10 and drop valve 11 are vertically connected with and are installed on inside outer barrel 9.Further, the upper valve 10 is with
The structure for flowing valve 11 is just the same.
As shown in figure 3, the upper valve 10 and drop valve 11 include valve seat 12, single current valve body 16 and valve body 13, institute respectively
The lower outside that single current valve body 16 is fixed on valve seat 12 is stated, the valve body 13 is rotatably connected to ball-and-seat by spring catch 15
On body 16, and valve body 13 is located at the lower end of valve seat 12.
Further, the inside of valve seat 12 is cylindrical hole, is provided with center flow channels inside the single current valve body 16, institute
The wall portion that spring catch 15 is arranged on single current valve body 16 along the axis direction perpendicular to single current valve body 16 is stated, the valve body 13 passes through
Torsion spring 14 is connected on spring catch 15 so that valve body 13 can be rotated by torsion spring 14 around spring catch 15, the valve
The upper end of body 13 is sitting in the cylindrical hole bottom of valve seat 12.
The operation principle of bivalve ball-and-seat 4 of the present utility model is as follows：
In original state, i.e. working solution or the unimplanted outer barrel 9 of steel ball, in the presence of torsion spring 14, valve body 13
Upper end is arranged in the cylindrical hole of valve seat 12, is closed single current valve body 16, prevents borehole fluid from flowing up.Applying
In work industry, when direct circulation is injected, when working solution or steel ball pass through single current valve body 16, in the presence of working fluid pressure, promote
Valve body 13 is rotated down around spring catch 15, and valve body 13 leaves the cylindrical hole of valve seat 12, and working solution or steel ball are by valve seat 12
The center flow channels of cylindrical hole and single current valve body 16 flow downward, and now working solution or steel ball pass through upper valve 10, similarly then lead to
Cross drop valve 11.During reacting cycle, promotion valve body 13 is up under the twisting force of torsion spring 14, i.e., valve body 13 is around spring catch
15 are rotated up, until the upper end of valve body 13 is arranged in the cylindrical hole of valve seat 12, upper valve 10 and drop valve 11 are all closed automatically
Close.
The valve body 13 of bivalve ball-and-seat 4 around spring catch 15 rotate and leave valve seat 12 cylindrical hole, increase fluid lead to
Road, such that it is able to carry out the operations such as lower drilling tool pitching, bivalve ball-and-seat 4 includes that two structures are identical and mutually independent in addition
Upper valve 10 and drop valve 11, after a valve body is damaged, another valve body can also continue to work, and the safety for increasing equipment can
By property.
Single current valve body 16 is provided with radial groove in centre so that valve body 13 has bigger accommodating sky when rotating down
Between, and then cause that center flow channels become big, and it has been also convenient for the installation of valve body 13, spring catch 15 and torsion spring 14.
This bivalve ball-and-seat being capable of achieving in the tubing string of dragging hydraulic jetting fracturing with pressure of the present utility model, is just following
During ring, the big orifice of fluid passage is realized, it is ensured that in perforation and pressing crack construction, do not produce throttle effect, it is ensured that normal
Construction, in trip-out process, during due to reacting cycle, passage can be automatically switched off, it is ensured that fluid will not be from oil pipe overflow.
Further, in order to prevent working solution from entering between valve seat and outer barrel, it is provided between the valve seat 12 and outer barrel 9
Sealing ring 17.
Exemplified as above is only for example, not constituting to protection domain of the present utility model to of the present utility model
Limitation, every design same or analogous with the utility model is belonged within protection domain of the present utility model.
Claims (6)
1. it is a kind of to be capable of achieving the tubing string for dragging hydraulic jetting fracturing with pressure, including ground preventer group (1), oil pipe (2), safety are lost
Hand (3), bivalve ball-and-seat (4), injector (5), packer (6), guiding check valve (7) and sleeve pipe (8), it is characterised in that：Institute
State ground preventer group (1) to be installed on well head, the oil pipe (2) and sleeve pipe (8) are installed in well, and oil pipe (2) is positioned at sleeve pipe
(8) in, and all include horizontal segment and vertical section, safety is connected with oil pipe (2) horizontal segment and is given up (3), oil pipe (2) end
It is connected with bivalve ball-and-seat (4), injector (5), packer (6) and guiding check valve (7) in turn.
2. the tubing string of dragging hydraulic jetting fracturing with pressure is capable of achieving as claimed in claim 1, it is characterised in that：The bivalve list
Stream valve includes outer barrel (9), upper valve (10) and drop valve (11), and the upper valve (10) and drop valve (11) are vertically connected with and pacify
It is internal loaded on outer barrel (9).
3. the tubing string of dragging hydraulic jetting fracturing with pressure is capable of achieving as claimed in claim 2, it is characterised in that：The upper valve
(10) and drop valve (11) structure it is just the same.
4. the tubing string of dragging hydraulic jetting fracturing with pressure is capable of achieving as claimed in claim 3, it is characterised in that：The upper valve
(10) and drop valve (11) includes valve seat (12), single current valve body (16) and valve body (13) respectively, the single current valve body (16) connects
In the lower outside of valve seat (12), the valve body (13) is rotatably connected on single current valve body (16) by spring catch (15),
And valve body (13) is positioned at the lower end of valve seat (12).
5. the tubing string of dragging hydraulic jetting fracturing with pressure is capable of achieving as claimed in claim 4, it is characterised in that：The valve seat
(12) internal is cylindrical hole, and center flow channels are provided with inside the single current valve body (16), and the spring catch (15) is along perpendicular to list
The axis direction of stream valve body (16) is arranged on the wall portion of single current valve body (16), and the valve body (13) is connected by torsion spring (14)
On spring catch (15) so that valve body (13) can be rotated by torsion spring (14) around spring catch (15), the valve body (13)
Upper end be sitting in valve seat (12) cylindrical hole bottom.
6. the tubing string of dragging hydraulic jetting fracturing with pressure is capable of achieving as claimed in claim 4, it is characterised in that：The valve seat
(12) sealing ring (17) is provided with and outer barrel (9) between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621100315.4U CN206220873U (en) | 2016-09-30 | 2016-09-30 | A kind of tubing string for being capable of achieving dragging hydraulic jetting fracturing with pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621100315.4U CN206220873U (en) | 2016-09-30 | 2016-09-30 | A kind of tubing string for being capable of achieving dragging hydraulic jetting fracturing with pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206220873U true CN206220873U (en) | 2017-06-06 |
Family
ID=58782547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621100315.4U Active CN206220873U (en) | 2016-09-30 | 2016-09-30 | A kind of tubing string for being capable of achieving dragging hydraulic jetting fracturing with pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206220873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939376A (en) * | 2017-11-27 | 2018-04-20 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of gas well gas testing operation integrated synthesis completion method |
-
2016
- 2016-09-30 CN CN201621100315.4U patent/CN206220873U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939376A (en) * | 2017-11-27 | 2018-04-20 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of gas well gas testing operation integrated synthesis completion method |
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