CN206174917U - Along with boring leaking stoppage tool - Google Patents
Along with boring leaking stoppage tool Download PDFInfo
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- CN206174917U CN206174917U CN201621079542.3U CN201621079542U CN206174917U CN 206174917 U CN206174917 U CN 206174917U CN 201621079542 U CN201621079542 U CN 201621079542U CN 206174917 U CN206174917 U CN 206174917U
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- adjustable pipe
- plugging
- inner core
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Abstract
The application discloses along with boring leaking stoppage tool, including casing, pressure -bearing activity pipe, whirl assembly, elastic component and bearing assembly, pressure -bearing activity pipe sliding seal just with casing circumferential location, radially is provided with the by pass port on the pressure -bearing activity pipe in the casing, be fixed with the slider on the pressure -bearing activity pipe, elastic component's both ends difference elastic reaction is on pressure -bearing activity pipe and casing, the bearing assembly includes bearing urceolus and bearing inner tube, and lower of bearing is connected with bearing inner tube circumferential location, and the outer barrel casing of bearing is solid in the central through hole cover, on pressure -bearing activity pipe is located to bearing inner tube movable sleeve, in lower tin of the bearing along the circumference be provided with a plurality of be used for with the oblique guide table of slider direction contact, is provided with shallow constant head tank and constant head tank deeply in turn along the circumference in the bearing inner tube. Through adjusting the drilling fluid discharge capacity, utilize drilling fluid thrust and elastic component elasticity, make pressure -bearing activity pipe take place the displacement, change by pass port and reposition of redundant personnel passageway connected state, the rotatory efflux runner of side direction is establish or closed.
Description
Technical field
This utility model is related to oil-gas drilling equipment technical field, more particularly to a kind of plugging while drilling instrument.
Background technology
As deep-well, the increase of ultra-deep well drilling quantity, and drilling well work progressively to complicated structure, complex lithology, pole
The extension in the regions such as end geological environment, leak-proof leak-stopping work encounter unprecedented challenge.It is anti-with boring using Physical at present
Leakage leakage stopping technology.
It is of the prior art a kind of with auxiliary leak stoppage tool, including tool body and swirl nozzle composition is bored, work as drilling fluid
After entering tool body, the drilling fluid of 15~20% flows, Jing radial direction through hole are diverted to swirl nozzle, by changing hydraulic jet
Direction and flow velocity, form the hydraulic jet of the relative stable and uniform of effluxvelocity distribution, using the rotating jet hydraulic energy for being formed
Measure and the surge of the borehole wall is acted on, with bore leak-proof leak-stopping material targetedly strongly push leakage in drilling fluid being mixed into
In the gap and crack of rock of borehole, mud cake that is fine and close, having bearing strength and shading ring are formed in the borehole wall, effectively improve leakage
The shut-off capacity of the borehole wall.But the instrument cannot cut out split channel after leak stopping terminates, there is 15~20% shunting in drilling fluid,
Cause bit hydraulic efficiency of breaking rock to reduce, affect normal drilling.
In sum, how to solve the problems, such as that existing plugging while drilling instrument cannot cut out radial direction split channel, become this
Art personnel's problem demanding prompt solution.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of plugging while drilling instrument, can be opened and closed radially
Split channel, improves bit hydraulic efficiency of breaking rock.
To reach above-mentioned purpose, this utility model provides technical scheme below：
A kind of plugging while drilling instrument, including：
Housing, axially offers central through hole in the housing, the housing radially offers split channel；
Pressure-bearing adjustable pipe, the sealing that slides axially are arranged in the central through hole, and circumferentially positioned with the central through hole,
The top of the pressure-bearing adjustable pipe is the compression end inside the connection pressure-bearing adjustable pipe and for bearing drilling liquid pressure, described
The by-pass prot for connecting with the split channel is radially arranged on the tube wall of pressure-bearing adjustable pipe, outside the pressure-bearing adjustable pipe
Slide block is fixedly installed on tube wall；
Eddy flow assembly, is arranged in the split channel；
Elastic partss, are arranged in the central through hole, and axial elasticity is acted on respectively at the two ends of the elastic partss
In the pressure-bearing adjustable pipe and the housing；
Cylinder under bearing assembly, including bearing outer tube, bearing inner core and bearing, the bearing outer tube and the bearing inner core turn
It is dynamic to coordinate, the circumferentially positioned connection in lower surface of cylinder and the bearing inner core under the bearing, the outer tube wall of the bearing outer tube with
The central through hole wall set is solid, and the bearing inner core is movably set in the pressure-bearing adjustable pipe, and under the bearing, cylinder is interior
The multiple oblique guide table circumferentially arranged is provided with barrel, the spigot surface of the oblique guide table favours axis, for and institute
State slider guide contact, be provided with the inner tube wall of the bearing inner core be circumferentially alternately arranged for sliding described in axial limiting
The shallow locating slot of block and deep locating slot, the shallow locating slot and the deep locating slot correspond to the oblique guide table, when the cunning
When block is limited in the shallow locating slot, the by-pass prot is connected with the split channel, when the slide block is limited in the depth
When in locating slot, the by-pass prot is not connected with the split channel.
Preferably, in above-mentioned plugging while drilling instrument, the housing include from top to bottom being threadedly coupled successively on connect
Head, transition pipe nipple and lower contact, the bearing assembly are arranged in the central through hole of the lower contact.
Preferably, in above-mentioned plugging while drilling instrument, the elastic partss include：
Spring, is sheathed in the pressure-bearing adjustable pipe；
Spring spool, is sheathed on the outside of the spring, and the length of the spring spool less than the length of the spring；
Spring base, is sheathed in the central through hole in the transition pipe nipple, and the lower surface of spring base is short with the transition
Positioning step positioning contact in section, elastic reaction is distinguished in the boss lower surface of the pressure-bearing adjustable pipe in the two ends of the spring
With the upper surface of the spring base, it is circumferentially positioned with the chute of the spring base that the pressure-bearing adjustable pipe passes through positioning key.
Preferably, in above-mentioned plugging while drilling instrument, the pressure-bearing adjustable pipe includes：
Adjustable pipe, the top of the adjustable pipe are provided with external screw thread；
Pressure-bearing cap, is threadedly connected to the top of the adjustable pipe, and the pressure-bearing cap is close with the internal face of the central through hole
Envelope, the pressure-bearing cap are provided with the fluid passage inside the connection adjustable pipe.
Preferably, in above-mentioned plugging while drilling instrument, on the excircle of the pressure-bearing cap, it is provided with seal groove.
Preferably, in above-mentioned plugging while drilling instrument, the eddy flow assembly includes：
Nozzle, the interior bone of the nozzle are provided with isometrical section and undergauge section, and the undergauge section is connected with the outlet of nozzle
It is logical；
Impeller, rotation are arranged in described isometrical section.
Preferably, in above-mentioned plugging while drilling instrument, the two ends of the impeller are cone.
Preferably, in above-mentioned plugging while drilling instrument, the lower surface of the bearing inner core with the bearing cylinder it is upper
End face is engaged by tooth.
Preferably, in above-mentioned plugging while drilling instrument, by spherical between the bearing outer tube and the bearing inner core
Ball is rotatably assorted.
Preferably, in above-mentioned plugging while drilling instrument, the bearing inner core is step-like Axial Circular Cylinder, in the bearing
The top cylinder section of cylinder is sheathed in the bearing outer tube, and the outer peripheral face of the lower cylinder section of the bearing inner core is outer with the bearing outer tube
Side face is concordant.
Compared with prior art, the beneficial effects of the utility model are：
In the plugging while drilling instrument that this utility model is provided, central through hole in housing, is axially offered, housing is radially opened up
There is split channel；The sealing that slides axially of pressure-bearing adjustable pipe is arranged in central through hole, and circumferentially positioned with central through hole, and pressure-bearing is lived
The top compression end of dynamic pipe, is radially arranged the by-pass prot for connecting with split channel, pressure-bearing on the tube wall of pressure-bearing adjustable pipe
Slide block is fixedly installed on the outer tube wall of adjustable pipe；Eddy flow assembly is arranged in split channel；Elastic partss are arranged at center and lead to
In hole, and axial elasticity is acted on pressure-bearing adjustable pipe and housing respectively at two ends；Bearing assembly is included in bearing outer tube and bearing
Cylinder, bearing outer tube and bearing inner core are rotatably assorted, the circumferentially positioned connection in lower surface of cylinder and bearing inner core, bearing outer tube under bearing
Outer tube wall and central through hole wall set it is solid, bearing inner core is movably set in pressure-bearing adjustable pipe, under bearing on the inner tube wall of cylinder
The multiple oblique guide table circumferentially arranged is provided with, the spigot surface of oblique guide table favours axis, for contacting with slider guide,
The shallow locating slot for axial limiting slide block and deep locating slot being circumferentially alternately arranged is provided with the inner tube wall of bearing inner core,
Shallow locating slot and deep locating slot correspond to oblique guide table.
When the pressure that drilling fluid is applied to the pressure-bearing section of pressure-bearing adjustable pipe is more than the elastic force of elastic partss, pressure-bearing adjustable pipe
Move down in central through hole, pressure-bearing adjustable pipe is circumferentially static with respect to central through hole, the slide block in pressure-bearing adjustable pipe is to bearing
The table top axial pressure of the oblique guide table in lower cylinder, as slide block is not rotated, therefore, cylinder rotation under driving bearing, while driving
Bearing inner core is rotated relative to bearing outer tube, when during the bottom of shoe contact to oblique guide table, drilling liquid pressure diminishes, and pressure-bearing is lived
Dynamic pipe is moved up in the presence of elastic partss, and slide block is also moved up, and in the shallow locating slot of bearing inner core, makes cunning
Block axially position, now, the height residing for by-pass prot in pressure-bearing adjustable pipe is just connected with the split channel on housing, can
The shunting of drilling fluid is realized, leak stopping operation is carried out.After leak stopping is completed, pressure, pressure-bearing activity are applied to pressure-bearing adjustable pipe again
Pipe overcomes elastic force to move down, and by the contact of slide block and oblique guide table, under driving bearing, cylinder and bearing inner core rotate again, and pressure subtracts
After little, slide block rises again with pressure-bearing adjustable pipe, and slide block is finally limited in deep locating slot, i.e., the height that pressure-bearing adjustable pipe is lifted
Increase, now, by-pass prot is staggered with split channel, does not connect, and completes the closing of split channel.Therefore, it is possible to open and close
Radial direction split channel, improves bit hydraulic efficiency of breaking rock.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing for providing.
A kind of plugging while drilling instrument that Fig. 1 is provided for this utility model embodiment in split channel connected state when
Structural representation；
A kind of structural representation of the bearing assembly of plugging while drilling instrument that Fig. 2 is provided for this utility model embodiment；
A kind of plugging while drilling instrument that Fig. 3 is provided for this utility model embodiment in split channel not connected state when
Structural representation；
A kind of structural representation of the eddy flow assembly of plugging while drilling instrument that Fig. 4 is provided for this utility model embodiment.
In Figs. 1-4,1 be top connection, 2 be pressure-bearing cap, 3 be adjustable pipe, 4 be spring spool, 5 be spring, 6 be spring
Seat, 7 be positioning key, 8 be transition pipe nipple, 9 be bearing outer tube, 10 be bearing inner core, 101 be top cylinder section, 102 be lower cylinder section, 103
It is shallow locating slot, 11 is slide block, 12 is cylinder under bearing, 121 is oblique guide table, 13 is lower contact, 14 is for deep locating slot, 104
By-pass prot, 15 be eddy flow assembly, 151 be nozzle, 152 be impeller, 16 be split channel, 17 be spherical ball, 18 be jump ring.
Specific embodiment
Core of the present utility model there is provided a kind of plugging while drilling instrument, can open and close radial direction split channel,
Improve bit hydraulic efficiency of breaking rock.
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
Fig. 1-Fig. 3 is refer to, this utility model embodiment provides a kind of plugging while drilling instrument, including housing, pressure-bearing are lived
Dynamic pipe, eddy flow assembly 15, elastic partss and bearing assembly；Wherein, central through hole 19 is axially offered in housing, housing is under
Portion position radially offers split channel 16；The sealing that slides axially of pressure-bearing adjustable pipe is arranged in the central through hole 19, and with
Central through hole 19 is circumferentially positioned, and the top of pressure-bearing adjustable pipe is compression end, and compression end is used for the drilling liquid pressure for bearing top, and
With central through hole 19 inside compression end connection pressure-bearing adjustable pipe, drilling fluid can be entered in pressure-bearing adjustable pipe, pressure-bearing adjustable pipe
The by-pass prot 14 for connecting with split channel is radially arranged on tube wall, on the outer tube wall of pressure-bearing adjustable pipe, cunning is fixedly installed
Block 11, slide block 11 are fixed in pressure-bearing adjustable pipe by the keyway in pressure-bearing adjustable pipe；Eddy flow assembly 15 is arranged at split channel
In 16, leak stopping liquid is sprayed to hull outside for radial direction；Elastic partss are arranged in central through hole 19, and the two of elastic partss
End respectively axial elasticity act on pressure-bearing adjustable pipe and housing, the mobile applying to pressure-bearing adjustable pipe in central through hole 19 to
Upper elasticity；Bearing assembly includes that cylinder 12 under bearing outer tube 9, bearing inner core 10 and bearing, bearing outer tube 9 and bearing inner core 10 are rotated
Coordinate, the circumferentially positioned connection in lower surface of cylinder 12 and bearing inner core 10 under bearing, i.e., under bearing, cylinder 12 and bearing inner core 10 be together
Rotate, the outer tube wall of bearing outer tube 9 is solid with central through hole wall set, 9 relative central through hole 19 of bearing outer tube is static, bearing inner core
10 are movably set in pressure-bearing adjustable pipe, and pressure-bearing adjustable pipe relative can be moved up and down and be relatively rotated, bearing with bearing inner core 10
The multiple oblique guide table 121 circumferentially arranged is provided with the inner tube wall of lower cylinder 12, the spigot surface of oblique guide table 121 favours axle
Line, for slide block 11 be oriented to contact, be provided with the inner tube wall of bearing inner core 10 be circumferentially alternately arranged for axial limit
The shallow locating slot 104 of position slide block 11 and deep locating slot 103, shallow locating slot 104 and deep locating slot 103 correspond to oblique guide table 121,
When slide block 11 is limited in shallow locating slot 104, by-pass prot 14 is connected with split channel 16, when slide block 11 is limited in deep locating slot
When in 103, by-pass prot 14 is not connected with split channel 16.
The operation principle and the course of work of above-mentioned plugging while drilling instrument is as follows：When drilling fluid displacement is to reach fluctuation pressure reduction
When, the insufficient pressure of drilling fluid to overcome the elastic force of elastic partss, so as to, pressure-bearing adjustable pipe can not be in the central through hole 19 downwards
Mobile, with split channel 16 to connect, drilling fluid all flows to shaft bottom by pressure-bearing adjustable pipe for by-pass prot 14.
When the pressure that drilling fluid is applied to the pressure-bearing section of pressure-bearing adjustable pipe is more than the elastic force of elastic partss, pressure-bearing adjustable pipe
Move down in central through hole 19, pressure-bearing adjustable pipe is with respect to 19 circumferential static, the slide block 11 in pressure-bearing adjustable pipe of central through hole
Table top axial pressure to the oblique guide table 121 in cylinder under bearing 12, as slide block 11 is not rotated, therefore, cylinder under driving bearing
12 rotations, while band dynamic bearing inner core 10 is rotated relative to bearing outer tube 9, when slide block 11 touches the bottom of oblique guide table 121,
Drilling liquid pressure diminishes, and pressure-bearing adjustable pipe is moved up in the presence of elastic partss, and slide block 11 is also moved up, and enters axle
Hold in the shallow locating slot 104 of inner core 10, make 11 axially position of slide block, now, as shown in figure 1, the by-pass prot in pressure-bearing adjustable pipe
Height residing for 14 is just connected with the split channel 16 on housing, can realize the shunting of drilling fluid, partial discharge Jing shuntings
Passage 16 and eddy flow assembly 15 radially spray, and form the rotating jet with three-dimensional velocity, using the rotating jet waterpower for being formed
Energy is acted on to the surge of the borehole wall, targetedly strongly pushes leakage to boring leak-proof leak-stopping material being mixed in drilling fluid
Lose the gap and crack of rock of borehole, mud cake densification being formed in the borehole wall, having bearing strength and shading ring, effectively improve leakage
The shut-off capacity of the borehole wall.
After leak stopping is completed, pressure is applied to pressure-bearing adjustable pipe again, pressure-bearing adjustable pipe overcomes elastic force to move down, by slide block
11 contacts with oblique guide table 121, under driving bearing, cylinder 12 and bearing inner core 10 rotate again, pressure reduce after, slide block 11 with
Pressure-bearing adjustable pipe rises again, and slide block 11 is finally limited in deep locating slot 103, i.e., the height increase that pressure-bearing adjustable pipe is lifted,
Now, as shown in figure 3, by-pass prot 14 is staggered with split channel 16, do not connect, complete the closing of split channel 16, drilling fluid is not
Shunted, drilling fluid all enters shaft bottom, normal drilling well by pressure-bearing adjustable pipe.
It can be seen that, the plugging while drilling instrument in the present embodiment can open and close radial direction split channel, improve drill bit water
Power efficiency of breaking rock.
As shown in figure 1, present embodiments providing a kind of specific housing, housing includes what is be from top to bottom threadedly coupled successively
Top connection 1, transition pipe nipple 8 and lower contact 13, bearing assembly are arranged in the central through hole 19 of lower contact 13.Top connection 1 it is upper
Portion is used to be passed through drilling fluid, and compression end and the sealing of central through hole 19 in top connection 1 of pressure-bearing adjustable pipe are slidably matched.Lower contact
Hard alloy blocks are inlaid with 13 outer tube walls, internal is step-like axially extending bore, for the lower surface of axially position bearing assembly.
The installation of internal pressure-bearing adjustable pipe, elastic partss and bearing assembly, the segmentation of housing can be facilitated using the housing of segmental structure
Quantity is arranged according to actual needs, it is not limited to the three stage structure cited by the present embodiment.
A kind of specific elastic partss are present embodiments provided, elastic partss include spring 5, spring spool 4 and spring base
6；Wherein, spring 5 is sheathed in pressure-bearing adjustable pipe；Spring spool 4 is sheathed on the outside of spring 5, and the length of spring spool 4 is little
In the length of spring 5；Spring base 6 is sheathed in the central through hole 19 in transition pipe nipple 8, the central through hole 19 in transition pipe nipple 8
Positioning step is provided with inside, the lower surface of spring base 6 is contacted with the positioning step axially position, the top of pressure-bearing adjustable pipe is arranged
Elastic reaction is distinguished in the upper surface of the boss lower surface and spring base 6 of pressure-bearing adjustable pipe, pressure-bearing in the two ends for having boss, spring 5
Adjustable pipe is circumferentially positioned with the chute of spring base 6 by positioning key 7.When pressure-bearing adjustable pipe is moved down, pressure-bearing adjustable pipe is squeezed
Pressing spring 5, when the upper surface that the two ends of spring spool 4 are connected to boss lower surface and spring base 6 respectively, pressure-bearing adjustable pipe is not
Can continue to move to.Spring 5 there is elastic reset to act on pressure-bearing adjustable pipe.
Certainly, elastic partss can be to be made up of gum elastic, sleeve and rubber base, as long as can realize that elastic reset is made
With.
A kind of specific pressure-bearing adjustable pipe is present embodiments provided, which includes adjustable pipe 3 and pressure-bearing cap 2；Wherein, adjustable pipe
3 top is provided with external screw thread；Pressure-bearing cap 2 is provided with female thread, so as to be threadedly connected to the top of adjustable pipe 3, pressure-bearing cap 2 with
The inwall face seal of central through hole 19 is slidably matched, and the top of pressure-bearing cap 2 is taper, and pressure-bearing cap 2 is provided with connection adjustable pipe 3
Portion and the fluid passage of central through hole 19, the quantity of fluid passage arbitrarily can be arranged, as long as enter can drilling fluid
Adjustable pipe 3, and pressure-bearing cap 2 can be made to bear the pressure of drilling fluid.
Certainly, pressure-bearing adjustable pipe can also be structure as a whole, and directly be wholely set pressure-bearing cap 2 on the top of adjustable pipe 3.
Further, seal groove is provided with the excircle of pressure-bearing cap 2, is provided with sealing ring in seal groove, so as to carry
Sealing property between high pressure-bearing cap and central through hole.
As shown in figure 4, present embodiments providing a kind of specific eddy flow assembly 15, which includes nozzle 151 and impeller 152；
Wherein, nozzle 151 is seal-installed in split channel 16, is fixed in split channel 16 by jump ring 18, the inside of nozzle 151
Through hole is provided with, through hole is divided into the outlet of isometrical section and undergauge section, undergauge section and nozzle 151, and undergauge section is conical section；
Impeller 152 is rotated and is arranged in isometrical section, and the exit inside diameter of nozzle 151 prevents impeller less than the external diameter of the screw wing of impeller 152
152 abjections.Preferably, sealing ring is provided between nozzle 151 and split channel 16.
Further, in the present embodiment, the two ends of impeller 152 be cone, its guide functions.The screw wing of impeller 152
Direction of rotation be dextrorotation, the quantity of screw wing can be two, three, four etc., screw wing it is preferably rectangular in shape, when
So, can also be other shapes.
As shown in Fig. 2 further optimizing, in the present embodiment, the lower surface of bearing inner core 10 and bearing to bearing assembly
The upper surface of lower cylinder 12 is engaged by tooth, and convenient installation is fixed, it is, of course, also possible to be fixed by modes such as bonding, welding.
Further, it is rotatably assorted by spherical ball 17 between bearing outer tube 9 and bearing inner core 10, it is spherical for convenience
The installation of ball 17, is provided with least one circle circumferential groove in 9 outer surface of bearing outer tube, and circumferential groove width is more than spherical ball 17
Diameter, circumferential groove are provided with radial direction through hole, and radial direction through hole diameter is slightly larger than 17 diameter of spherical ball, are platform inside bearing outer tube 9
Scalariform axially extending bore, 10 inner surface of bearing inner core are provided with least one circle ball grooves, and ball grooves diameter is slightly larger than spherical ball 17, rolling
Pearl groove shaft core position is overlapped with circumferential groove shaft core position.Spherical ball 17 is put in ball grooves by radial direction through hole.
Further, bearing inner core 10 is step-like Axial Circular Cylinder, and bearing inner core 10 includes top cylinder section 101 and lower cylinder section
102, the external diameter of top cylinder section 101 is less than the external diameter of lower cylinder section 102, and top cylinder section 101 is sheathed in bearing outer tube 9, lower cylinder section 102
Outer peripheral face is concordant with the outer peripheral face of bearing outer tube 9.
In the present embodiment, lower 102 inner surface of cylinder section of bearing inner core 10 is provided with least five locating slots, i.e., shallow locating slot
104 and the sum of deep locating slot 103 be at least five, and be circumferentially alternately arranged, 10 lower surface of bearing inner core is provided with least
Three engaging tooths.
Under bearing, the inner surface setting of cylinder 12 has the positioning at least five oblique guide tables 121, quantity and bearing inner core 10
Groove correspondence.
In this specification, each embodiment is described by the way of progressive, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use that this practicality is new
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determined herein
The General Principle of justice can be realized in the case of without departing from spirit or scope of the present utility model in other embodiments.Cause
This, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (10)
1. a kind of plugging while drilling instrument, it is characterised in that include：
Housing, axially offers central through hole (19) in the housing, the housing radially offers split channel (16)；
Pressure-bearing adjustable pipe, the sealing that slides axially are arranged in the central through hole (19), and circumferential with the central through hole (19)
Positioning, the top of the pressure-bearing adjustable pipe are the pressure-bearing inside the connection pressure-bearing adjustable pipe and for bearing drilling liquid pressure
End, is radially arranged the by-pass prot (14) for connecting with the split channel (16), institute on the tube wall of the pressure-bearing adjustable pipe
Slide block (11) is fixedly installed on the outer tube wall for stating pressure-bearing adjustable pipe；
Eddy flow assembly (15), is arranged in the split channel (16)；
Elastic partss, are arranged in the central through hole (19), and axial elasticity is acted on respectively at the two ends of the elastic partss
In the pressure-bearing adjustable pipe and the housing；
Cylinder (12) under bearing assembly, including bearing outer tube (9), bearing inner core (10) and bearing, the bearing outer tube (9) and described
Bearing inner core (10) is rotatably assorted, the circumferentially positioned connection in lower surface of cylinder (12) and the bearing inner core (10) under the bearing,
The outer tube wall of the bearing outer tube (9) is solid with the central through hole (19) wall set, and the bearing inner core (10) is movably set in
In the pressure-bearing adjustable pipe, the multiple oblique guide table circumferentially arranged under the bearing, on the inner tube wall of cylinder (12), is provided with
(121), the spigot surface of the oblique guide table (121) favours axis, contacts for being oriented to the slide block (11), the bearing
The shallow locating slot for slide block described in axial limiting (11) being circumferentially alternately arranged is provided with the inner tube wall of inner core (10)
And deep locating slot (103), the shallow locating slot (104) and the corresponding oblique guide table of the deep locating slot (103) (104)
(121), when the slide block (11) be limited in the shallow locating slot (104) it is interior when, the by-pass prot (14) and the split channel
(16) connect, when the slide block (11) be limited in the deep locating slot (103) it is interior when, the by-pass prot (14) not with the shunting
Passage (16) is connected.
2. plugging while drilling instrument according to claim 1, it is characterised in that the housing includes from top to bottom screw thread successively
The top connection (1) of connection, transition pipe nipple (8) and lower contact (13), the bearing assembly are arranged in the lower contact (13)
In heart through hole (19).
3. plugging while drilling instrument according to claim 2, it is characterised in that the elastic partss include：
Spring (5), is sheathed in the pressure-bearing adjustable pipe；
Spring spool (4), is sheathed on the outside of the spring (5), and the length of the spring spool (4) is less than the spring
(5) length；
Spring base (6), is sheathed on the central through hole (19) in the transition pipe nipple (8) Nei, and lower surface and the institute of spring base (6)
The positioning step positioning contact in transition pipe nipple (8) is stated, elastic reaction is distinguished in the pressure-bearing activity in the two ends of the spring (5)
The upper surface of the boss lower surface of pipe and the spring base (6), the pressure-bearing adjustable pipe pass through positioning key (7) and the spring base
(6) chute is circumferentially positioned.
4. plugging while drilling instrument according to claim 1, it is characterised in that the pressure-bearing adjustable pipe includes：
Adjustable pipe (3), the top of the adjustable pipe (3) are provided with external screw thread；
Pressure-bearing cap (2), is threadedly connected to the top of the adjustable pipe (3), the pressure-bearing cap (2) and the central through hole (19)
Inwall face seal, the pressure-bearing cap (2) are provided with the internal fluid passage of the connection adjustable pipe (3).
5. plugging while drilling instrument according to claim 4, it is characterised in that arrange on the excircle of the pressure-bearing cap (2)
There is seal groove.
6. plugging while drilling instrument according to claim 1, it is characterised in that the eddy flow assembly includes：
Nozzle (151), the interior bone of the nozzle (151) are provided with isometrical section and undergauge section, the undergauge section and nozzle
(151) outlet；
Impeller (152), rotation are arranged in described isometrical section.
7. plugging while drilling instrument according to claim 6, it is characterised in that the two ends of the impeller (152) are cone.
8. plugging while drilling instrument according to claim 1, it is characterised in that the lower surface of the bearing inner core (10) and institute
Engaged by tooth the upper surface for stating cylinder under bearing (12).
9. plugging while drilling instrument according to claim 1, it is characterised in that in the bearing outer tube (9) and the bearing
It is rotatably assorted by spherical ball (17) between cylinder (10).
10. plugging while drilling instrument according to claim 1, it is characterised in that the bearing inner core (10) is step-like axle
To cylinder, the top cylinder section (101) of the bearing inner core (10) is sheathed in the bearing outer tube (9), the bearing inner core (10)
Lower cylinder section (102) outer peripheral face it is concordant with the outer peripheral face of the bearing outer tube (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079542.3U CN206174917U (en) | 2016-09-26 | 2016-09-26 | Along with boring leaking stoppage tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079542.3U CN206174917U (en) | 2016-09-26 | 2016-09-26 | Along with boring leaking stoppage tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206174917U true CN206174917U (en) | 2017-05-17 |
Family
ID=58676516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621079542.3U Active CN206174917U (en) | 2016-09-26 | 2016-09-26 | Along with boring leaking stoppage tool |
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| Country | Link |
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| CN (1) | CN206174917U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227942A (en) * | 2017-07-12 | 2017-10-03 | 中国石油集团西部钻探工程有限公司 | Plugging while drilling short-circuit device |
| CN109736744A (en) * | 2019-01-18 | 2019-05-10 | 长江大学 | Oil well site-directed quantitative leak stoppage tool |
| CN113777028A (en) * | 2021-11-11 | 2021-12-10 | 成都理工大学 | Device and method for measuring adhesive strength between gel plugging material and rock wall surface |
| CN115434660A (en) * | 2021-06-03 | 2022-12-06 | 中国石油化工股份有限公司 | Rotary jet plugging device for oil well |
-
2016
- 2016-09-26 CN CN201621079542.3U patent/CN206174917U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227942A (en) * | 2017-07-12 | 2017-10-03 | 中国石油集团西部钻探工程有限公司 | Plugging while drilling short-circuit device |
| CN109736744A (en) * | 2019-01-18 | 2019-05-10 | 长江大学 | Oil well site-directed quantitative leak stoppage tool |
| CN109736744B (en) * | 2019-01-18 | 2024-03-08 | 长江大学 | Fixed-point quantitative plugging tool for oil well |
| CN115434660A (en) * | 2021-06-03 | 2022-12-06 | 中国石油化工股份有限公司 | Rotary jet plugging device for oil well |
| CN113777028A (en) * | 2021-11-11 | 2021-12-10 | 成都理工大学 | Device and method for measuring adhesive strength between gel plugging material and rock wall surface |
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Effective date of registration: 20180719 Address after: 100028 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Co-patentee after: Drilling Research Institute of Zhongyuan Petroleum Engineering Co., Ltd. Sinopec Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Co-patentee after: SINOPEC ZHONGYUAN PETROLEUM ENGINEERING CO., LTD. Address before: 100028 Chaoyang District, Beijing Hui Xin Street 6, Twelfth level. Co-patentee before: Drilling Research Institute of Zhongyuan Petroleum Engineering Co., Ltd. Sinopec Patentee before: SINOPEC OILFIELD SERVICE CORPORATION |