CN207160977U - A kind of ultra-short radius well deflecting drilling tool - Google Patents
A kind of ultra-short radius well deflecting drilling tool Download PDFInfo
- Publication number
- CN207160977U CN207160977U CN201720868246.XU CN201720868246U CN207160977U CN 207160977 U CN207160977 U CN 207160977U CN 201720868246 U CN201720868246 U CN 201720868246U CN 207160977 U CN207160977 U CN 207160977U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- ultra
- drilling tool
- flex
- short radius
- 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.)
- Active
Links
Abstract
The utility model belongs to oil, colliery and exploration drilling tool technical field, propose a kind of ultra-short radius well deflecting drilling tool, including several flex-stems being sequentially connected from beginning to end, the flex-stem of end is connected with length compensation device, and the guide sleeve of several activity connections is arranged with outside the flex-stem.During the utility model solves deflecting, deflecting length length, the excessive technical problem of turn curvature radius.
Description
Technical field
The utility model belongs to oil, colliery and exploration drilling tool technical field, is related to a kind of ultra-short radius well deflecting and bores
Tool.
Background technology
In the technical fields such as oil, colliery and exploration, horizontal well drilling or inclined shaft often are wanted, with oil exploitation dynamics
Increasing, oil drilling, workover treatment gradually extend to deeper more complicated geology, and inclined shaft, horizontal well and service shaft are more and more,
Drilling rod usually can make the side wall of the body of rod sustain damage in drilling, and during deflecting, deflecting length length, turn curvature
Radius is excessive.
Utility model content
The utility model proposes a kind of ultra-short radius well deflecting drilling tool, solves above-mentioned technical problem.
What the technical solution of the utility model was realized in：
A kind of ultra-short radius well deflecting drilling tool, including：
Several flex-stems that head and the tail are sequentially connected, the flex-stem of end are connected with length compensation device, institute
State the guide sleeve that several activity connections are arranged with outside flex-stem.
As further technical scheme, the flex-stem includes the ball seat being arranged in the guide sleeve, the ball
Bulb is provided with seat, one end of the bulb is spherical, and external splines, the ball seat are provided with the side wall of the spherical
One end be provided with the ball recess for inserting the spherical, be provided with the ball recess inwall and the external splines phase
The internal spline of cooperation, and the bulb is provided between the external splines and the internal spline and swings required cavity.
As further technical scheme, the length compensation device includes length compensation section, the length compensation section bag
Drive mandrel is included, the both ends of the drive mandrel are connected with piston and helicoid hydraulic motor respectively, and the drive mandrel is close to the work
The outer sheath of plug one end is provided with drive sleeve, and the outer wall of the drive mandrel and the inwall of the drive sleeve coordinate knot for polygon
Structure, the one end of the drive sleeve away from the helicoid hydraulic motor are connected by crossover sub with the flex-stem.
As further technical scheme, cylinder, the both sides of described cylinder one end are respectively arranged with the second neck and first
Dop, the side of the cylinder other end are provided with second neck for being caught in another cylinder and are caught in latter two
One second dop that the cylinder can be swung towards one side, the opposite side of the cylinder other end, which is provided with, to be blocked described in another
First neck of first dop of cylinder.
As further technical scheme, second dop includes the second c-type boss being connected with the cylinder, described
It is provided with and rises as high as the banks on second c-type boss, second neck includes the second c-opening coordinated with the second c-type boss, institute
To state and keyway is provided with the second c-opening both sides outer wall, the keyway is arranged on the both sides risen as high as the banks on the adjacent cylinder,
Baffle plate is provided with the keyway, and the middle part of the baffle plate is risen as high as the banks through described, both ends are connected with the keyway.
As further technical scheme, first dop includes the first c-type boss being connected with the cylinder, described
The end set of first c-type boss has step, and first neck includes opening with the first c-type that the first c-type boss coordinates
Mouthful, the bottom of first c-opening is provided with the limiting plate being caught in the step of the adjacent cylinder.
As further technical scheme, the external splines and the internal spline are curved.
As further technical scheme, the one end of the bulb away from the spherical is provided with the first joint, described
The one end of ball seat away from the ball recess is provided with the second joint, and described on first joint and the adjacent ball seat
Two joints are connected through a screw thread.
As further technical scheme, be provided with lock nut between the ball seat and the bulb, the lock nut in a ring,
And the outside of the lock nut is connected by screw with the ball seat, the spherical is blocked in inner side.
As further technical scheme, the outer wall of the drive mandrel and the inwall of the drive sleeve coordinate for hexagon
Structure.
Compared with prior art, utility model works principle and have the beneficial effect that：
1st, in the utility model, flex-stem head and the tail are sequentially connected, and can shorten the length of inclination section, reduce turn curvature
Radius, expected drilling position is more accurately reached, guide sleeve is arranged with outside flex-stem, protects flex-stem not ground
Damage, extend the service life of flex-stem, and activity connection between several guide sleeves, guide sleeve is met flexible swing
Needs, the deflecting for not interfering with the ultra-short radius of flex-stem uses, and the setting of length compensation device, in build-up process
The presence of length difference is avoided, overall structure realizes the needs of ultra-short radius deflecting.
2nd, in the utility model, the spherical of bulb one end is inserted into the ball recess of ball seat, while the side of spherical
External splines on wall is inserted into internal spline, and internal spline defines the rotation of bulb, moment of torsion when facilitating multiple flex-stems connections
Transmission, while cavity is provided between external splines and internal spline, the external splines of bulb is swung in cavity so that
Bulb is swung in ball seat, and bulb makes drilling rod flexible more preferable relative to the swing for being integrated with ± 5 °, and unitary rotation is more flexible,
Inclination section is shorter in drilling process, turn curvature radius is smaller, and intensity is high, is hardly damaged, service life length.
3rd, in the utility model, the outer wall of drive mandrel and the inwall of drive sleeve are polygon fit structure, more efficient
Moment of torsion between drive mandrel and drive sleeve is transmitted, so that the helicoid hydraulic motor of drive mandrel one end carries out normal operation,
The drive mandrel other end is provided with piston, and drive sleeve is set in outside drive mandrel and piston, makes effect of the drive mandrel in piston
Under in drive sleeve can stretching motion, when during deflecting, even if there is certain turn curvature radius, being also avoided that length
Spend the presence of difference.
4th, in the utility model, the outside for being set on drilling rod is oriented to, avoids drilling rod side wall in drilling from sustaining damage, and
Drilling life of drill pipe is influenceed, guide sleeve is mutually connected using multiple cylinders, and use is more convenient, is more suitable for flexibility
Drilling rod is shielded, and when adjacent cylinder connects, the first dop of the second neck and adjacent cylinder, which cooperates, to be connected, after connection
Two cylinders can be towards a side oscillation, and cylinder obtains the first dop and the first neck that opposite side is provided with mutual cooperation, and first
Neck blocks first dop of another cylinder, and neighbour's cylinder is mutually disengaged when avoiding the cylinder from swinging, and ensures connection
Stability, with the certain angle of opposing oscillatory flex-stem can be coordinated to realize deflecting between adjacent guide sleeve in the present embodiment
Need, shorten the length of inclination section.
5th, in the utility model, when adjacent cylinder connects, the second c-type boss of cylinder is caught in the second c-type of adjacent cylinder
In opening, the keyway of cylinder is located at the both sides risen as high as the banks in adjacent cylinder, baffle plate through rising as high as the banks and the keyway of its both sides, and with
Keyway is connected, while the first dop is entrapped in the first neck in adjacent cylinder, prevent adjacent cylinder be mutually disengaged or phase
To rotating, while make with the certain angle of opposing oscillatory flex-stem can be coordinated to realize the needs of deflecting between adjacent cylinder, and
And shorten the length of inclination section, experiment shows that each guide sleeve of the present embodiment can flexibly swing 3 ° of angle of oscillation, therefore ought need
Meet that only 30 guide sleeves of needs can meet needs during 90 ° of deflecting needs, substantially reduce make compared with prior art
Oblique radius.
6th, in the utility model, when adjacent cylinder connects, the first c-type boss is inserted into the first c-opening of adjacent cylinder,
Limiting plate is caught in the step in adjacent cylinder simultaneously, further prevents being mutually disengaged or relatively rotating for adjacent cylinder, simultaneously
The cooperation of limiting plate and step, while be easier to make adjacent cylinder set angle of oscillation at the second dop and the second neck；Outer flower
Key and internal spline are curved, bulb is swung in ball seat more flexible；One end of bulb is provided with the first joint, ball seat
One end is provided with the second joint, and external screw thread is provided with the first joint, and internal thread, the first joint are provided with the second inner nosepiece wall
It is connected through a screw thread with the second joint on another ball seat, facilitates the connection between drilling rod；Lock nut is inserted into ball seat and bulb
Between, its one end is fixedly connected by screw with the side wall of ball recess, and the other end is arranged on spherical, blocks spherical,
Skidding off for bulb is prevented, and keeps swingable property of the bulb in ball seat；The outer wall of drive mandrel and the inwall of drive sleeve are
Hexagon fit structure, handling ease and fit structure are stable, and moment of torsion transmission effect is good.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the utility model structure diagram；
Fig. 2 is flex-stem structural representation in the utility model；
Fig. 3 is A-A cross-sectional views in the utility model；
Fig. 4 is guide sleeve structure schematic diagram in the utility model；
Fig. 5 is another viewing angle constructions schematic diagram of guide sleeve in the utility model；
Fig. 6 is guide sleeve attachment structure schematic diagram in the utility model；
In figure：1- bulbs, 11- sphericals, 12- external splines, the joints of 13- first, 2- ball seats, 21- ball recess, in 22-
Spline, 23- cavitys, the joints of 24- second, 3- lock nuts, 31- screws, 4- cylinders, the necks of 5- first, the c-openings of 51- first, 52-
Limiting plate, the dops of 6- second, 61- the second c-type boss, 62- rise as high as the banks, the dops of 7- first, 71- the first c-type boss, 72- steps, 8-
Second neck, the c-openings of 81- second, 82- keyways, 83- baffle plates, 9- length compensation sections, 91- drive mandrels, 92- pistons, 93-
Helicoid hydraulic motor, 94- drive sleeves, 95- crossover subs, 96- adapter sleeves.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
As shown in Fig. 1~Fig. 6, the utility model proposes a kind of ultra-short radius well deflecting drilling tool, including：
Several flex-stems that head and the tail are sequentially connected, the flex-stem of end are connected with length compensation device, flexible drilling
The guide sleeve of several activity connections is arranged with outside bar.
In the present embodiment, flex-stem head and the tail are sequentially connected, and can shorten the length of inclination section, reduce turn curvature half
Footpath, expected drilling position is more accurately reached, guide sleeve is arranged with outside flex-stem, protects flex-stem not frayed,
Extend the service life of flex-stem, and activity connection between several guide sleeves, guide sleeve is met flexible swing
Need, the deflecting for not interfering with the ultra-short radius of flex-stem uses, and the setting of length compensation device, is kept away in build-up process
The presence of length difference is exempted from, overall structure realizes the needs of ultra-short radius deflecting.
Further, flex-stem includes ball seat 2, is provided with bulb 1 in ball seat 2, and one end of bulb 1 is spherical 11, ball
External splines 12 is provided with the side wall of body 11, one end of ball seat 2 is provided with the ball recess 21 for inserting spherical 11, spherical
The internal spline 22 being engaged with external splines is provided with the inwall of groove 21, and bulb is provided between external splines 12 and internal spline 22
1 swings required cavity 23.
In the present embodiment, the spherical 11 of the one end of bulb 1 is inserted into the ball recess 21 of ball seat 2, while spherical 11
Side wall on external splines 12 be inserted into internal spline 22, internal spline 22 defines the rotation of bulb 1, facilitates multiple flex-stems
The transmission of moment of torsion during connection, while cavity 23 is provided between external splines 12 and internal spline 22, enable the external splines 12 of bulb 1
Swung in cavity 23, so that bulb 1 is swung in ball seat 2, bulb makes drilling rod flexible relative to the swing for being integrated with ± 5 °
More preferably, unitary rotation is more flexible, and inclination section is shorter in drilling process, turn curvature radius is smaller, and intensity is high, not rapid wear
It is bad, service life length.
Further, length compensation device includes length compensation section 9, and length compensation section 9 includes drive mandrel 91, drive mandrel
91 both ends are connected with piston 92 and helicoid hydraulic motor 93 respectively, and outer sheath of the drive mandrel 91 close to the one end of piston 92 is provided with transmission
Set 94, the outer wall of drive mandrel 91 and the inwall of drive sleeve 94 are polygon fit structure, and drive sleeve 94 is away from helicoid hydraulic motor 93
One end be connected by crossover sub 95 with flex-stem.
In the present embodiment, the outer wall of drive mandrel 91 and the inwall of drive sleeve 94 are polygon fit structure, more efficient
Transmitted moment of torsion between drive mandrel 91 and drive sleeve 94, so that the helicoid hydraulic motor 93 of the one end of drive mandrel 91 is carried out just
Chang Zuoye, the other end of drive mandrel 91 are provided with piston 92, and drive sleeve 94 is set in outside drive mandrel 91 and piston 92, makes transmission
Mandrel 91 in the presence of piston 92 in drive sleeve 94 can stretching motion, when during deflecting, even if having certain
Turn curvature radius, also it is avoided that the presence of length difference.
Further, guide sleeve includes being arranged on cylinder 4 outside flex-stem, and the both sides of the one end of cylinder 4 are respectively arranged with the
The dop 7 of two draw-in groove 8 and first, the side of the other end of cylinder 4 are provided with the second neck 8 for being caught in another cylinder 4 and are caught in
One second dop 6 that latter two cylinder 4 can be swung towards one side, the opposite side of the other end of cylinder 4, which is provided with, blocks another cylinder
First neck 5 of the first dop 7 of body 4.
In the present embodiment, the outside for being set on drilling rod is oriented to, avoids drilling rod side wall in drilling from sustaining damage, and is influenceed
Drilling life of drill pipe, guide sleeve are mutually connected using multiple cylinders 4, and use is more convenient, is more suitable for flexible drilling
Bar is shielded, and when adjacent cylinder 4 connects, the first dop 7 of the second neck 8 and adjacent cylinder 4, which cooperates, to be connected, connection
Latter two cylinder 4 can be towards a side oscillation, and cylinder 4 obtains the first dop 7 and the first neck that opposite side is provided with mutual cooperation
5, the first neck 5 blocks the first dop 7 of another cylinder 4, and neighbour cylinder 4 is mutually disengaged when avoiding the cylinder 4 from swinging, and ensures to connect
Connect stability, with the certain angle of opposing oscillatory flex-stem can be coordinated to realize deflecting between adjacent guide sleeve in the present embodiment
Needs, shorten the length of inclination section.
Further, the second dop 6 includes the second c-type boss 61 being connected with cylinder 4, is provided with the second c-type boss 61
Rise as high as the banks 62, the second neck 8 includes the second c-opening 81 coordinated with the second c-type boss 61, the both sides outer wall of the second c-opening 81
On be provided with keyway 82, keyway 82 be arranged in adjacent cylinder 4 rise as high as the banks 62 both sides, be provided with baffle plate 83 in keyway 82,
And the middle part of baffle plate 83, through rising as high as the banks 62, both ends are connected with keyway 82.
In the present embodiment, when adjacent cylinder 4 connects, the second c-type boss 61 of cylinder 4 is caught in the second c-type of adjacent cylinder 4
In opening 81, the keyway 82 of cylinder 4 be located in adjacent cylinder 4 rise as high as the banks 62 both sides, baffle plate 83 pass through rise as high as the banks 62 and its two
The keyway 82 of side, and be connected with keyway 82, while the first dop 7 is entrapped in the first neck 5 in adjacent cylinder 4, prevents phase
Adjacent cylinder 4 being mutually disengaged or relatively rotating, while makes with the certain angle of opposing oscillatory to coordinate soft between adjacent cylinder 4
Property drilling rod realize the needs of deflecting, and shorten the length of inclination section, experiment shows that each guide sleeve of the present embodiment can be flexible
3 ° of angle of oscillation is swung, therefore only 30 guide sleeves of needs can meet needs when needing to meet 90 ° of deflecting needs, with showing
There is technology to compare and substantially reduce deflecting radius.
Further, the first dop 7 includes the first c-type boss 71 being connected with cylinder 4, and the end of the first c-type boss 71 is set
Step 72 is equipped with, the first neck 5 includes the first c-opening 51 coordinated with the first c-type boss 71, the bottom of the first c-opening 51
End is provided with the limiting plate 52 in the step 72 for being caught in adjacent cylinder 4.
In the present embodiment, when adjacent cylinder 4 connects, the first c-type boss 71 is inserted into the first c-opening of adjacent cylinder 4
51, while limiting plate 52 is caught in the step 72 in adjacent cylinder 4, further prevent being mutually disengaged or relatively for adjacent cylinder 4
Rotate, while the cooperation of limiting plate 52 and step 72, while it is easier to make adjacent cylinder 4 at the second dop 6 and the second neck 8
Angle of oscillation is set.
Further, external splines and internal spline 22 are curved.
In the present embodiment, external splines and internal spline 22 are curved, bulb 1 is swung in ball seat 2 more flexible.
Further, the one end of bulb 1 away from spherical 11 is provided with the first joint 13, and ball seat 2 is away from ball recess 21
One end is provided with the second joint 24, and the second joint 24 on the first joint 13 and adjacent tees 2 is connected through a screw thread.
In the present embodiment, one end of bulb 1 is provided with the first joint 13, and one end of ball seat 2 is provided with and the first joint 13
Second joint 24 of connection, external screw thread is provided with the first joint 13, internal thread is provided with the inwall of the second joint 24, first connects
First 13 and adjacent tees 2 on the second joint 24 be connected through a screw thread, facilitate the connection between drilling rod.
Further, it is provided with lock nut 3 between ball seat 2 and bulb 1, in a ring, and the outside of lock nut 3 passes through screw to lock nut 3
31 are connected with ball seat 2, and spherical 11 is blocked in inner side.
In the present embodiment, lock nut 3 is inserted between ball seat 2 and bulb 1, and its side passes through screw 31 and ball recess 21
Side wall is fixedly connected, and opposite side is arranged on spherical 11, blocks spherical 11, prevents skidding off for bulb 1, and keep bulb
The 1 swingable property in ball seat 2.
Further, the outer wall of drive mandrel 91 and the inwall of drive sleeve 94 are hexagon fit structure.
In the present embodiment, the outer wall of drive mandrel 91 and the inwall of drive sleeve 94 are hexagon fit structure, handling ease
And fit structure is stable, moment of torsion transmission effect is good.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (10)
1. a kind of ultra-short radius well deflecting drilling tool, it is characterised in that including several flex-stems being sequentially connected from beginning to end, end
The flex-stem be connected with length compensation device, the guide sleeve of several activity connections is arranged with outside the flex-stem.
2. a kind of ultra-short radius well deflecting drilling tool according to claim 1, it is characterised in that the flex-stem includes setting
The ball seat (2) in the guide sleeve is put, bulb (1) is provided with the ball seat (2), one end of the bulb (1) is spherical
Body (11), external splines (12) is provided with the side wall of the spherical (11), one end of the ball seat (2) is provided with the ball
The ball recess (21) of body (11) insertion, is provided with ball recess (21) inwall in being engaged with the external splines
Spline (22), and the bulb (1) is provided between the external splines (12) and the internal spline (22) and swings required cavity
(23)。
A kind of 3. ultra-short radius well deflecting drilling tool according to claim 1, it is characterised in that the length compensation device bag
Length compensation section (9) is included, the length compensation section (9) includes drive mandrel (91), the both ends difference of the drive mandrel (91)
It is connected with piston (92) and helicoid hydraulic motor (93), outer sheath of the drive mandrel (91) close to the piston (92) one end is provided with
Drive sleeve (94), the outer wall of the drive mandrel (91) and the inwall of the drive sleeve (94) are polygon fit structure, described
The one end of drive sleeve (94) away from the helicoid hydraulic motor (93) is connected by crossover sub (95) with the flex-stem.
4. a kind of ultra-short radius well deflecting drilling tool according to claim 1~2 any one, the guide sleeve includes setting
Cylinder (4) outside the flex-stem, the both sides of described cylinder (4) one end are respectively arranged with the second neck (8) and the first card
Head (7), the side of cylinder (4) other end be provided with second neck (8) for being caught in another cylinder (4) and
It is caught in one second dop (6) that latter two described cylinder (4) can swing towards one side, the opposite side of cylinder (4) other end
It is provided with the first neck (5) for first dop (7) for blocking another cylinder (4).
A kind of 5. ultra-short radius well deflecting drilling tool according to claim 4, it is characterised in that the second dop (6) bag
The second c-type boss (61) being connected with the cylinder (4) is included, is provided with rise as high as the banks (62) on the second c-type boss (61), it is described
Second neck (8) includes the second c-opening (81) coordinated with the second c-type boss (61), second c-opening (81)
It is provided with keyway (82) on the outer wall of both sides, the keyway (82) is arranged on the two of rising as high as the banks on the adjacent cylinder (4) (62)
Side, the keyway (82) is interior to be provided with baffle plate (83), and the middle part of the baffle plate (83) is risen as high as the banks (62) through described, both ends and institute
State keyway (82) connection.
A kind of 6. ultra-short radius well deflecting drilling tool according to claim 4, it is characterised in that the first dop (7) bag
The first c-type boss (71) being connected with the cylinder (4) is included, the end set of the first c-type boss (71) has step (72),
First neck (5) includes the first c-opening (51) coordinated with the first c-type boss (71), first c-opening
(51) bottom is provided with the limiting plate (52) being caught in the step (72) of the adjacent cylinder (4).
A kind of 7. ultra-short radius well deflecting drilling tool according to claim 2, it is characterised in that the external splines and described interior
Spline (22) is curved.
8. a kind of ultra-short radius well deflecting drilling tool according to claim 2, it is characterised in that the bulb (1) is away from institute
The one end for stating spherical (11) is provided with the first joint (13), and the one end of the ball seat (2) away from the ball recess (21) is set
It is equipped with the second joint (24), second joint (24) on first joint (13) and the adjacent ball seat (2) passes through spiral shell
Line connects.
A kind of 9. ultra-short radius well deflecting drilling tool according to claim 2, it is characterised in that the ball seat (2) and described
Be provided with lock nut (3) between bulb (1), the lock nut (3) in a ring, and the outside of the lock nut (3) by screw (31) with
Ball seat (2) connection, the spherical (11) is blocked in inner side.
A kind of 10. ultra-short radius well deflecting drilling tool according to claim 3, it is characterised in that the drive mandrel (91)
The inwall of outer wall and the drive sleeve (94) be hexagon fit structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720868246.XU CN207160977U (en) | 2017-07-17 | 2017-07-17 | A kind of ultra-short radius well deflecting drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720868246.XU CN207160977U (en) | 2017-07-17 | 2017-07-17 | A kind of ultra-short radius well deflecting drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207160977U true CN207160977U (en) | 2018-03-30 |
Family
ID=61713133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720868246.XU Active CN207160977U (en) | 2017-07-17 | 2017-07-17 | A kind of ultra-short radius well deflecting drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207160977U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165575A (en) * | 2017-07-17 | 2017-09-15 | 河北中荣石油机械有限责任公司 | A kind of ultra-short radius well deflecting drilling tool |
| CN109854174A (en) * | 2019-04-02 | 2019-06-07 | 大庆井泰石油工程技术股份有限公司 | Short radius drilling tool and drilling method |
| CN113187397A (en) * | 2021-05-31 | 2021-07-30 | 中煤科工集团西安研究院有限公司 | Guide head deflectable drill bit for directional drilling large-curvature section reaming and reaming method |
| CN113494248A (en) * | 2021-08-05 | 2021-10-12 | 常州大学 | Electromagnetic flexible short-section drilling tool suitable for geothermal well |
| CN113494248B (en) * | 2021-08-05 | 2024-04-19 | 常州大学 | Electromagnetic flexible nipple drilling tool suitable for geothermal well |
-
2017
- 2017-07-17 CN CN201720868246.XU patent/CN207160977U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165575A (en) * | 2017-07-17 | 2017-09-15 | 河北中荣石油机械有限责任公司 | A kind of ultra-short radius well deflecting drilling tool |
| CN107165575B (en) * | 2017-07-17 | 2023-06-16 | 河北中荣石油机械有限责任公司 | Ultrashort radius well deflecting drilling tool |
| CN109854174A (en) * | 2019-04-02 | 2019-06-07 | 大庆井泰石油工程技术股份有限公司 | Short radius drilling tool and drilling method |
| CN109854174B (en) * | 2019-04-02 | 2024-03-26 | 大庆井泰石油工程技术股份有限公司 | Short radius drilling tool and drilling method |
| CN113187397A (en) * | 2021-05-31 | 2021-07-30 | 中煤科工集团西安研究院有限公司 | Guide head deflectable drill bit for directional drilling large-curvature section reaming and reaming method |
| CN113187397B (en) * | 2021-05-31 | 2022-07-19 | 中煤科工集团西安研究院有限公司 | Guide head deflectable type drill bit for reaming large curvature section of directional drilling and reaming method |
| CN113494248A (en) * | 2021-08-05 | 2021-10-12 | 常州大学 | Electromagnetic flexible short-section drilling tool suitable for geothermal well |
| CN113494248B (en) * | 2021-08-05 | 2024-04-19 | 常州大学 | Electromagnetic flexible nipple drilling tool suitable for geothermal well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107165575A (en) | A kind of ultra-short radius well deflecting drilling tool | |
| CN207160977U (en) | A kind of ultra-short radius well deflecting drilling tool | |
| CN207161002U (en) | A kind of ultra-short radius drilling well erection device and drilling apparatus | |
| EP3347562B1 (en) | Multi-lead quick connect threaded connection | |
| CN110374521A (en) | The mining automatic reassembling type drilling rod of positive and negative rotation | |
| CN107683363A (en) | The drilling rod or adapter of plug connection with reinforcement | |
| CN207160976U (en) | A kind of ultra-short radius well deflecting guide sleeve | |
| JP2018503042A (en) | Balanced thread shape and tubular body employing the same and methods relating thereto | |
| CN107002467A (en) | Drill string drilling rod with guiding shoulder | |
| CN109681134A (en) | Drill rod connector | |
| CN207160975U (en) | A kind of length compensation boring rod set of ultra-short radius deflecting drilling tool | |
| CN103124829B (en) | The screw thread coupling that moment of torsion increases | |
| CN102248205A (en) | Quick transition joint | |
| CN207348805U (en) | A kind of plug-in type drilling rod | |
| CN206830105U (en) | Break in a kind of well and fall drilling tool marine salvage equipment | |
| CN207161005U (en) | A kind of flex-stem | |
| CN201184157Y (en) | Oil well hydraulic unfreezing machine | |
| CN201083085Y (en) | Drilling rod without welding down-the-hole drill | |
| CN202273607U (en) | Soil-free threaded drill rod | |
| CN213510474U (en) | Thick-wall high-torque-resistance landing oil drill pipe | |
| AU2019394564B2 (en) | A drilling string, threaded coupling, and rod adaptor for rotary drilling | |
| CN214221114U (en) | Drill rod connecting structure | |
| CN102392611A (en) | Threaded drill pipe without bringing out soil and pilling method without bringing out soil for simultaneously forming thread and smooth rod | |
| CN217400843U (en) | Low-stress high-torque-resistance double-thread drill rod joint | |
| CN216130885U (en) | Oil pipe or casing pipe make-up centralizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180321 Address after: 050000 Hong Wah street, No. 47, No. 47, worker, agriculture road, Tokyo North Industrial District, Yuhua District, Hebei Province, 1 Co-patentee after: North China Engineering Investigation Institute Co., Ltd. Patentee after: HEBEI ZHONGRONG PETROLEUM MACHINERY CO., LTD. Address before: 050000 Hong Wah street, No. 47, No. 47, worker, agriculture road, Tokyo North Industrial District, Yuhua District, Hebei Province, 1 Patentee before: HEBEI ZHONGRONG PETROLEUM MACHINERY CO., LTD. |
|
| TR01 | Transfer of patent right |