CN207776794U - The downhole tool of automatic vertical drilling is realized using cam four-bar mechanism - Google Patents
The downhole tool of automatic vertical drilling is realized using cam four-bar mechanism Download PDFInfo
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- CN207776794U CN207776794U CN201820120759.7U CN201820120759U CN207776794U CN 207776794 U CN207776794 U CN 207776794U CN 201820120759 U CN201820120759 U CN 201820120759U CN 207776794 U CN207776794 U CN 207776794U
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Abstract
The utility model discloses a kind of downhole tools that automatic vertical drilling is realized using cam four-bar mechanism in the fields such as oil drilling, it is to be axially moved by convert rotational motion, convert axial movement to radial motion again, in drilling process, when hole deviation occurs, it lays particular stress on the heavier side of casing and the low side of wellbore is automatically rotated to by bearing a and bearing c under the effect of gravity, drive connecting rod base rotation, connecting rod a and connecting rod b is set to be always positioned at wellbore flash, top connection drives central tube rotation, roller mount makes cam pump with central tube synchronous rotation, to drive connecting rod a and connecting rod b to be continuously urged to the borehole wall, the reaction force of a cycle is generated to correct hole deviation, realize normal drilling, improve drilling efficiency.The utility model realizes that the downhole tool of automatic vertical drilling can effectively correct hole deviation using cam four-bar mechanism, ensures the precision vertically crept into, to improve drilling efficiency and hole quality, saves production cost.
Description
Technical field
The utility model belongs to a kind of Novel down-hole drilling tool of oil-gas drilling engineering field, more particularly to a kind of
The downhole tool of automatic vertical drilling is realized using cam four-bar mechanism.
Background technology
With the increase of natural petroleum gas field degree, exploitation difficulty also continues to increase, the geology ring that drilling engineering faces
Border also becomes increasingly complex with drilling technology.Ground environment difference proposes the use of downhole well tool new requirement, improves
The service life of downhole tool improves drilling efficiency, and it is also the inexorable trend of energy conservation and environmental protection under the new situation to save drilling cost.
In Vertical Well drilling process, due to the complexity on drilling stratum and boring mechanic and technique etc., drilling well bending hardly may be used
It avoids, to be had an impact to drillng operation, reduces drilling efficiency, increase drilling cost, anti-oblique exactly one of straight well is generally deposited
In, unusual distinct issues.
Vertical drilling tool is mainly used in oil and gas well drilling engineering.Since the anti-oblique well straightening technology of conventional straight well is applicable in
It is limited in scope, has been unable to meet the needs of drilling well under such as high-dip structure, deep-well complex situations, and people also gradually recognize
It arrives, drilling straight-hole is not low cost and simple drillng operation, and there is an urgent need to develop new anti-oblique technology.New anti-oblique technology should not
But can it is anti-oblique, and can beat soon, by it is high-quality with efficiently effectively unite.Routine straight well is anti-oblique mainly with meeting the eye on every side group at present
It closes " weight is bored soon ", with Man Baozhi, well straightening is using pendulum combination " light pressure is hung up and beaten ", and with slow well straightening, defect is:Rely solely on brill
It is extremely limited to have the restoring force that the pendulum force of itself generates, and drilling quality is improved to sacrifice drilling speed, this method is difficult
Reach not only fast but also drill out the high verticality borehole wall with saving target to be bored with sacrificing with bit pressure and height is sacrificed at small hole deviation is exchanged for originally
Speed exchanges wellbore quality for, is not inconsistent with economic benefit.
Utility model content
For solve background technology described in Vertical Well drilling operation course since formation factor and technical reason are made
At hole deviation situation, the problem low so as to cause drilling efficiency, drilling cost is high, drilling period is long, the utility model carries
A kind of downhole tool for realizing automatic vertical drilling using cam four-bar mechanism is supplied.
The technical solution of the utility model is：Realize the downhole tool of automatic vertical drilling by upper using cam four-bar mechanism
Connector, sealing ring, bearing a, lays particular stress on casing, is roller mount, idler wheel, screw a, cam, camb cap outer shroud, screw b, convex at central tube
Wheel cap inner ring, spring, spring base, screw c, screw d, connecting rod base, flexural pivot, connecting rod a, roller, straight pin, joint pin, connecting rod b,
Bearing b, sleeve, bearing c and lower contact composition, it is characterised in that：The idler wheel is mounted on by screw a in roller mount, flexural pivot
It is installed on cam bottom by camb cap outer shroud, screw b and camb cap inner ring, connecting rod base is fixed on the outside of bearing b；On to
Under roller mount, cam, spring, spring base, bearing b and sleeve are mounted on central tube successively, roller mount is by being screwed
In on central tube, spring base is fixed on by screw d on central tube；Roller is mounted on connecting rod b right ends by straight pin, is utilized
Connecting rod a is connected by joint pin with connecting rod b, then connecting rod a is connect with flexural pivot lower end, and connecting rod b is connect with connecting rod base；It in advance will be close
Seal ring, which is installed to, to be laid particular stress on casing, is fixed on the outside of central tube using bearing a and bearing c by casing is laid particular stress on, and laying particular stress on casing can be around
Central tube is freely rotated, and connecting rod base is fixed on by screw c and is laid particular stress on casing；Central tube upper end is threadedly coupled with top connection, under
End is threadedly coupled with lower contact.
The downhole tool that automatic vertical drilling is realized using cam four-bar mechanism described in said program, feature are existed
In：Casing screw hole, distance sleeve screw hole week are offered at the circumferential center of the heavier side middle and lower part of weighting casing
Connecting rod telescopic mouth is offered to 180 °, connecting rod a and connecting rod b can be stretched by connecting rod telescopic mouth, lay particular stress on casing or more two
End offers seal groove, for placing sealing ring；Connecting rod base screw hole on the connecting rod base and the installation places connecting rod b circumferential direction phase
Away from 180 °, screw c connecting sleeves screw hole and connecting rod base screw hole, ensure connecting rod a and connecting rod b always with lay particular stress on the company on casing
Bar telescopic mouth is opposite.
The downhole tool that automatic vertical drilling is realized using cam four-bar mechanism described in said program, feature are existed
In：The cam bottom offers annular groove, and cam circularizes slideway, flexural pivot with camb cap outer shroud and camb cap annular
It can be circumferentially rotated around cam in annular slide track, lubricating grease should be coated before installation in annular groove；The connecting rod b right ends peace
Equipped with roller, becomes the sliding friction of drilling tool and the borehole wall as rolling friction, reduce working resistance.
The utility model has the beneficial effects that：(1) hole deviation is incuded using weighting principle in real time, induction is sensitive, and reaction is fast
Speed, into Mobile state well straightening；(2) the well straightening operation principle of cam and four-bar mechanism implementation tool, structure novel is utilized to have
Theoretical research value and further develop perfect possibility；(3) the utility model is purely mechanical structure, does not include electricity
Magnetic measurement component and high pressure oil system, stable work in work, cost are low.
Description of the drawings
Fig. 1 is the downhole tool connecting rod a described in the utility model that automatic vertical drilling is realized using cam four-bar mechanism
With the structural schematic diagram under connecting rod b stretching states.
Fig. 2 is the downhole tool connecting rod a described in the utility model that automatic vertical drilling is realized using cam four-bar mechanism
With the structural schematic diagram under connecting rod b retracted states.
Fig. 3 is the Section A-A figure in the utility model Fig. 1.
Fig. 4 is link mechanism schematic three dimensional views.
Fig. 5 is roller mount, idler wheel and cam structure schematic three dimensional views.
Fig. 6 is cam, camb cap inner ring and camb cap outer ring structure schematic three dimensional views.
Fig. 7 is to lay particular stress on sleeve structure schematic three dimensional views.
1- top connections in figure, 2- central tubes, 3- sealing rings, 4- bearings a, 5- lay particular stress on casing, 6- roller mounts, 7- idler wheels, 8-
Screw a, 9- cam, 10- camb cap outer shrouds, 11- screws b, 12- camb cap inner ring, 13- springs, 14- spring bases, 15- screw c,
16- screws d, 17- connecting rod base, 18- flexural pivots, 19- connecting rods a, 20- roller, 21- straight pins, 22- joint pins, 23- connecting rods b, 24-
Bearing b, 25- sleeve, 26- bearings c, 27- lower contact.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings.
Referring to attached drawing 1, the downhole tool of automatic vertical drilling is realized using cam four-bar mechanism, by top connection 1, central tube
2, sealing ring 3, bearing a4, lay particular stress on casing 5, be roller mount 6, idler wheel 7, screw a8, cam 9, camb cap outer shroud 10, screw b11, convex
Wheel cap inner ring 12, spring 13, spring base 14, screw c15, screw d16, connecting rod base 17, flexural pivot 18, connecting rod a19, roller 20, circle
Pin 21, joint pin 22, connecting rod b23, bearing b24, sleeve 25, bearing c26 and lower contact 27 form, it is characterised in that：It is described
Idler wheel 7 is mounted on by screw a8 in roller mount 6, and flexural pivot 18 passes through camb cap outer shroud 10, screw b11 and camb cap inner ring 12
It is installed on 9 bottom of cam, connecting rod base 17 is fixed on the outside of bearing b24；From top to bottom successively by roller mount 6, cam 9, spring 13,
Spring base 14, bearing b24 and sleeve 25 are mounted on central tube 2, and roller mount 6 is relied on and is screwed on central tube 2, spring base
14 are fixed on by screw d16 on central tube 2；Roller 20 is mounted on connecting rod b23 right ends by straight pin 21, utilizes joint pin
22 are connected connecting rod a19 with connecting rod b23, then connecting rod a19 is connect with 18 lower end of flexural pivot, and connecting rod b23 is connect with connecting rod base 17；
Sealing ring 3 is installed in advance and is laid particular stress on casing 5, is fixed on outside central tube 2 using bearing a4 and bearing c26 by casing 5 is laid particular stress on
Side, laying particular stress on casing 5 can be freely rotated around central tube 2, and connecting rod base 17 is fixed on by screw c15 and is laid particular stress on casing 5；Central tube 2
Upper end is threadedly coupled with top connection 1, and lower end is threadedly coupled with lower contact 27；In drilling process, when hole deviation occurs, casing is laid particular stress on
5 heavier sides are automatically rotated to the low side of wellbore by bearing a4 and bearing c26 under the effect of gravity, and connecting rod base 17 is driven to rotate,
Connecting rod a19 and connecting rod b23 is set to be always positioned at wellbore flash, top connection 1 drives central tube 2 to rotate, and roller mount 6 is same with central tube 2
Step rotation makes cam 9 pump, and to drive connecting rod a19 and connecting rod b23 to be continuously urged to the borehole wall, generates a cycle
Reaction force correct hole deviation, realize normal drilling, improve drilling efficiency；When hole deviation does not occur, the deviation of casing 5 is laid particular stress on
It is random, therefore the automatic vertical drilling tool not will produce the restoring force of constant side, not influence normally to creep into.
Casing screw hole, distance sleeve spiral shell are offered at the circumferential center of the 5 heavier side middle and lower part of weighting casing
Connecting rod telescopic mouth is offered at nail hole is 180 ° circumferential, connecting rod a19 and connecting rod b23 can be stretched by connecting rod telescopic mouth, be laid particular stress on
5 upper and lower ends of casing offer seal groove, for placing sealing ring 3；Connecting rod base screw hole on the connecting rod base 17 and company
Circumferential apart 180 ° of the installation places bar b23, screw c15 connecting sleeves screw hole and connecting rod base screw hole, ensure connecting rod a19 and connecting rod
B23 is opposite with the connecting rod telescopic mouth laid particular stress on casing 5 always.
9 bottom of cam offers annular groove, and cam 9 forms ring with camb cap outer shroud 10 and camb cap inner ring 12
Shape slideway, flexural pivot 18 can circumferentially rotate in annular slide track around cam 9, should coat lubricating grease before installation in annular groove；Institute
The connecting rod b23 right ends stated are equipped with roller 20, become the sliding friction of drilling tool and the borehole wall as rolling friction, reduce working resistance.
Claims (5)
1. the downhole tool of automatic vertical drilling is realized using cam four-bar mechanism, by top connection（1）, central tube（2）, sealing ring
（3）, bearing a（4）, lay particular stress on casing（5）, roller mount（6）, idler wheel（7）, screw a（8）, cam（9）, camb cap outer shroud（10）, spiral shell
Follow closely b（11）, camb cap inner ring（12）, spring（13）, spring base（14）, screw c（15）, screw d（16）, connecting rod base（17）, ball
Hinge（18）, connecting rod a（19）, roller（20）, straight pin（21）, joint pin（22）, connecting rod b（23）, bearing b（24）, sleeve（25）、
Bearing c（26）And lower contact（27）Composition, it is characterised in that：The idler wheel（7）Pass through screw a（8）Mounted on roller mount（6）
On, flexural pivot（18）Pass through camb cap outer shroud（10）, screw b（11）And camb cap inner ring（12）It is installed on cam（9）Bottom, even
Pole socket（17）It is fixed on bearing b（24）Outside；From top to bottom successively by roller mount（6）, cam（9）, spring（13）, spring base
（14）, bearing b（24）And sleeve（25）Mounted on central tube（2）On, roller mount（6）By being screwed on central tube（2）On,
Spring base（14）By screw d（16）It is fixed on central tube（2）On；By roller（20）Pass through straight pin（21）Mounted on connecting rod b
（23）Right end utilizes joint pin（22）By connecting rod a（19）With connecting rod b（23）It is connected, then by connecting rod a（19）With flexural pivot（18）Lower end
Connection, connecting rod b（23）With connecting rod base（17）Connection；In advance by sealing ring（3）It is installed to weighting casing（5）On, utilize bearing a
（4）With bearing c（26）Casing will be laid particular stress on（5）It is fixed on central tube（2）Casing is laid particular stress in outside（5）It can be around central tube（2）Freely turn
It is dynamic, connecting rod base（17）Pass through screw c（15）It is fixed on weighting casing（5）On；Central tube（2）Upper end and top connection（1）Screw thread connects
It connects, lower end and lower contact（27）It is threadedly coupled；In drilling process, when hole deviation occurs, casing is laid particular stress on（5）Heavier side is in gravity
Effect is lower to pass through bearing a（4）With bearing c（26）It is automatically rotated to the low side of wellbore, drives connecting rod base（17）Rotation, makes connecting rod a
（19）With connecting rod b（23）It is always positioned at wellbore flash, top connection（1）Drive central tube（2）Rotation, roller mount（6）With central tube
（2）Synchronous rotation makes cam（9）It pumps, to drive connecting rod a（19）With connecting rod b（23）It is continuously urged to the borehole wall, is produced
The reaction force of raw a cycle corrects hole deviation, realizes normal drilling, improves drilling efficiency.
2. the downhole tool according to claim 1 for being realized automatic vertical drilling using cam four-bar mechanism, feature are existed
In：The weighting casing（5）Casing screw hole, distance sleeve screw hole are offered at the circumferential center of heavier side middle and lower part
Connecting rod telescopic mouth, connecting rod a are offered at 180 ° circumferential（19）With connecting rod b（23）It can be stretched, be laid particular stress on by connecting rod telescopic mouth
Casing（5）Upper and lower ends offer seal groove, for placing sealing ring（3）.
3. the downhole tool according to claim 1 for being realized automatic vertical drilling using cam four-bar mechanism, feature are existed
In：The connecting rod base（17）On connecting rod base screw hole and connecting rod b（23）Circumferential apart 180 ° of installation place, screw c（15）Even
Female connector pipe screw hole and connecting rod base screw hole ensure connecting rod a（19）With connecting rod b（23）Always with lay particular stress on casing（5）On connecting rod
Telescopic mouth is opposite.
4. the downhole tool according to claim 1 for being realized automatic vertical drilling using cam four-bar mechanism, feature are existed
In：The cam（9）Bottom offers annular groove, cam（9）With camb cap outer shroud（10）With camb cap inner ring（12）Shape
Circularize slideway, flexural pivot（18）It can be in annular slide track around cam（9）It circumferentially rotates, profit should be coated before installation in annular groove
Consistent lubricant.
5. the downhole tool according to claim 1 for being realized automatic vertical drilling using cam four-bar mechanism, feature are existed
In：The connecting rod b（23）Right end is equipped with roller（20）, become the sliding friction of drilling tool and the borehole wall as rolling friction, reduce work
Make resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820120759.7U CN207776794U (en) | 2018-01-24 | 2018-01-24 | The downhole tool of automatic vertical drilling is realized using cam four-bar mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820120759.7U CN207776794U (en) | 2018-01-24 | 2018-01-24 | The downhole tool of automatic vertical drilling is realized using cam four-bar mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN207776794U true CN207776794U (en) | 2018-08-28 |
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ID=63211309
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820120759.7U Active CN207776794U (en) | 2018-01-24 | 2018-01-24 | The downhole tool of automatic vertical drilling is realized using cam four-bar mechanism |
Country Status (1)
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| CN (1) | CN207776794U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852358A (en) * | 2020-08-25 | 2020-10-30 | 重庆科技学院 | Multi-branch yield-increasing drilling stroke-increasing crawling tool |
| CN113027398A (en) * | 2021-03-10 | 2021-06-25 | 大庆市天德忠石油科技有限公司 | Water injection matching combined tool |
| CN116464390A (en) * | 2023-04-04 | 2023-07-21 | 中国地质大学（北京） | Mechanical type correction system suitable for polar region ice layer hot melt drilling tool |
-
2018
- 2018-01-24 CN CN201820120759.7U patent/CN207776794U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852358A (en) * | 2020-08-25 | 2020-10-30 | 重庆科技学院 | Multi-branch yield-increasing drilling stroke-increasing crawling tool |
| CN111852358B (en) * | 2020-08-25 | 2024-03-19 | 重庆科技学院 | Multi-branch yield-increasing drilling Cheng Pahang tool |
| CN113027398A (en) * | 2021-03-10 | 2021-06-25 | 大庆市天德忠石油科技有限公司 | Water injection matching combined tool |
| CN113027398B (en) * | 2021-03-10 | 2021-10-15 | 大庆市天德忠石油科技有限公司 | Water injection matching combined tool |
| CN116464390A (en) * | 2023-04-04 | 2023-07-21 | 中国地质大学（北京） | Mechanical type correction system suitable for polar region ice layer hot melt drilling tool |
| CN116464390B (en) * | 2023-04-04 | 2023-09-15 | 中国地质大学（北京） | Mechanical type correction system suitable for polar region ice layer hot melt drilling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181129 Address after: 610500 No. 160 Huanghe Road, East Industrial District, Xindu District, Chengdu City, Sichuan Province Patentee after: Chengdu Sealand Energy Technology Ltd. Address before: 610500 Xindu Road, Xindu District, Chengdu, Sichuan Province, No. 8 Patentee before: Southwest Petroleum University |
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| TR01 | Transfer of patent right |