CN208686326U - Roller casing wear prevention subtracts twist joint - Google Patents
Roller casing wear prevention subtracts twist joint Download PDFInfo
- Publication number
- CN208686326U CN208686326U CN201821079496.6U CN201821079496U CN208686326U CN 208686326 U CN208686326 U CN 208686326U CN 201821079496 U CN201821079496 U CN 201821079496U CN 208686326 U CN208686326 U CN 208686326U
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- Prior art keywords
- wear
- pin shaft
- subtracts
- resistant sleeve
- groove
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Abstract
The utility model provides a kind of roller casing wear prevention and subtracts twist joint, including joint body, upper wear ring, lower wear ring, wear-resistant sleeve, the wear-resistant sleeve is placed on the outside of the joint body, the upper wear ring is fixed on the top of the wear-resistant sleeve, and the lower wear ring is fixed on the lower section of the wear-resistant sleeve；The joint body is equipped with several connector grooves, the wear-resistant sleeve is equipped with quantity set groove identical with the connector groove, the position of the connector groove is corresponding with the set groove respectively, is provided with several steel balls between the connector groove and set groove.Roller casing wear prevention described in the utility model subtracts inside the wear-resistant sleeve of twist joint equipped with steel ball, outside installation idler wheel, rolling friction is changed by traditional sliding friction, frictional resistance, torque and casing wear can be effectively reduced in rotary drilling and make a trip during, can promoted and applied in deep-well, High angle, extended reach well and horizontal well.
Description
Technical field
The utility model belongs to petroleum exploration field, subtracts twist joint more particularly, to a kind of roller casing wear prevention.
Background technique
Current drilling mode rotary drilling and top drive drilling nothing more than, and both drilling modes are all by ground
Power passes to drill bit by drilling tool rotation, thus fractured rock.In this way deep-well (ultradeep well), High angle, extended reach well and
In the work progress of horizontal well, since hole angle and azimuthal variation are big, hole shrinkage or generate drilling tool and revolve around borehole axis
The case where, in casing well section, drilling tool and casing can generate friction, it may appear that drill tool wear, casing wall are thinning or even worn out；Naked
Eye well section, drilling tool directly rub with rock stratum, not only wear drilling tool, but also influence borehole wall stability.In addition, being rotated in drilling tool
When, drilling tool and casing (or rock stratum) rub, and increase reaction torque, the reaction torque of especially kelly bar receiving is very big, kelly bar
Early fatigue destruction can be occurred by bearing excessive reaction torque for a long time.There are also drilling tools when making a trip, and also can generate friction to casing
Abrasion.
Therefore the drag and torque and casing wear that tool joint and casing (or rock stratum) rub and generate are that restriction deep-well is (super
Deep-well), High angle, one of extended reach well and horizontal well drilling development length and the critical issue of safety.Frictional resistance is reduced at present to turn round
Square and the most direct and most common means of casing wear are that drill string joint nearby or between connector rub and subtract torsion tool by installation drop, will
Friction between tool joint and casing is converted to drilling rod and drop rubs and subtracts torsion tool or its internal friction, come reduce frictional resistance and
Casing wear.But traditional anti-wear torque-reducing tool mostly uses sliding friction pair, and that there are friction factors is big, service life is short, safety
It is insufficient and the problems such as frictional resistance is larger during making a trip cannot be solved.
Summary of the invention
In view of this, the utility model, which is directed to a kind of roller casing wear prevention, subtracts twist joint, using Internal steel ball, outside
The roller casing wear prevention of portion's idler wheel subtracts twist joint, and effectively the sliding friction by rotary drilling and during making a trip is converted to
Rolling friction, the connector have many advantages, such as that coefficient of friction is low, stable and reliable in work, the service life is long.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of roller casing wear prevention subtracts twist joint, including joint body, upper wear ring, lower wear ring, wear-resistant sleeve, described
Wear-resistant sleeve be placed on the outside of the joint body, the upper wear ring is fixed on the top of the wear-resistant sleeve, described
Lower wear ring be fixed on the lower section of the wear-resistant sleeve；
The joint body is equipped with several connector grooves, and the wear-resistant sleeve is equipped with quantity and the connector
The identical set groove of groove, the position of the connector groove is corresponding with the set groove respectively, the connector groove
Several steel balls is provided between set groove；
It is evenly provided with several straight rib muscle on the wear-resistant sleeve, is equipped with pin shaft hole on the straight rib muscle, institute
The pin shaft hole stated is internally provided with idler wheel, is provided with pin shaft on the idler wheel, the pin shaft pass through the pin shaft hole,
Idler wheel, and be fixed on the straight rib muscle by pin shaft hole circlip.
Further, the upper wear ring and lower wear ring pass through holding screw and are fixed on the joint body.
Further, it is provided with axis circlip below the lower wear ring, the axis is fixed on described with circlip
On joint body.
Further, the straight rib muscle is equipped with feeding screw thread mouth, and the feeding screw thread mouth is internally provided with silk plug,
Silk plug circlip is provided on the outside of the silk plug.
Further, the lower end of the silk plug is equipped with spherical groove, and the radius of the spherical groove is greater than the steel
The radius of pearl.
Further, the both ends of the idler wheel are provided with auricle, and the thickness of the auricle is less than or equal to 1mm.
Further, the silk plug is interior hexagonal silk plug.
Further, the pin shaft hole is internally provided with slot, and the slot is mutually perpendicular to the pin shaft hole,
The pin shaft passes through the slot, idler wheel, and is fixed on the straight rib muscle by pin shaft hole circlip.
Compared with the existing technology, roller casing wear prevention described in the utility model subtracts twist joint and has the advantage that
(1) roller casing wear prevention described in the utility model subtracts inside the wear-resistant sleeve of twist joint equipped with steel ball, outside peace
Idler wheel is filled, rolling friction is changed by traditional sliding friction, can effectively reduce and rub in rotary drilling and make a trip during
Resistance, torque and casing wear, can promote and apply in deep-well (ultradeep well), High angle, extended reach well and horizontal well.
(2) roller casing wear prevention described in the utility model subtracts twist joint and connect with drill assembly, wear-resistant sleeve when drilling
First with casing-contact, when drilling tool rotation, wear-resistant sleeve is opposing stationary with casing, the relative rotation transfer between drilling tool and casing
Onto joint body and wear-resistant sleeve, friction is not generated between drilling tool and casing, not only protects drilling tool, but also protection sleeve pipe.Due to connector
Rotation between ontology and wear-resistant sleeve is realized by steel ball rolling, and rolling friction factor is smaller, also reduces the anti-of drilling tool
Torque.In addition, using roller structure on the outside of wear-resistant sleeve, abrasion when making a trip to casing can be effectively reduced.
(3) roller casing wear prevention described in the utility model subtract twist joint with coefficient of friction it is low, it is stable and reliable in work,
The advantages that service life is long.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is the schematic diagram that roller casing wear prevention described in the utility model embodiment subtracts twist joint；
Fig. 2 is the semi-cutaway that roller casing wear prevention described in the utility model embodiment subtracts twist joint；
Fig. 3 is the sectional view of idler wheel cross section described in the utility model embodiment；
Fig. 4 is the sectional view of steel ball cross section described in the utility model embodiment；
Fig. 5 is the explosive view of straight rib muscle described in utility model embodiment；
Fig. 6 is the partial enlarged view at A described in utility model embodiment.
Description of symbols:
1- joint body；The upper wear ring of 2-；3- holding screw；4- wear-resistant sleeve；5- steel ball；6- silk plug；7- silk plug circlip；
Wear ring under 8-；9- axis circlip；10- pin shaft hole circlip；11- pin shaft；12- idler wheel；101- connector groove；The straight rib muscle of 41-；
411- feeding screw thread mouth；412- pin shaft hole；413- slot；42- covers groove.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figs 1-4, a kind of roller casing wear prevention subtracts twist joint, including joint body 1, upper wear ring 2, under it is wear-resisting
Ring 8, wear-resistant sleeve 4, the wear-resistant sleeve 4 are placed on the outside of the joint body 1, and the upper wear ring 2 is fixed on described
Wear-resistant sleeve 4 top, the lower wear ring 8 is fixed on the lower section of the wear-resistant sleeve 4；
The joint body 1 be equipped with several connector grooves 101, the wear-resistant sleeve 4 be equipped with quantity with it is described
The identical set groove 42 of connector groove 101, the position of the connector groove 101 is opposite with the set groove 42 respectively
It answers, is provided with several steel balls 5 between the connector groove 101 and set groove 42；The connector groove 101 and set groove
Rolling friction pair is formed between 42, steel ball 5 is blocked with interior hexagonal silk plug 6；
It is evenly provided with 5 straight rib muscle 41 on the wear-resistant sleeve 4, is equipped with pin shaft hole on the straight rib muscle 41
412, the pin shaft hole 412 is internally provided with idler wheel 12, and pin shaft 11, the pin shaft are provided on the idler wheel 12
11 pass through the pin shaft hole 412, idler wheel 12, and are fixed on the straight rib muscle 41 by pin shaft hole circlip 10.
The upper wear ring 2 and lower wear ring 8 are fixed on the joint body 1 by holding screw 3；It is described
Holding screw 3 be interior hexagonal cylindrical end set screw 3.Axis circlip 9 is provided with below the lower wear ring 8, it is described
Axis circlip 9 is fixed on the joint body 1, increases the safety of connector.
The straight rib muscle 41 is equipped with feeding screw thread mouth 411, and the feeding screw thread mouth 411 is internally provided with silk plug
6, the outside of the silk plug 6 is provided with silk plug circlip 7.The lower end of the silk plug 6 is equipped with spherical groove, and the spherical surface is recessed
The radius of slot is greater than the radius of the steel ball 5.The silk plug 6 is interior hexagonal silk plug 6.
The both ends of the idler wheel 12 are provided with auricle, and the thickness of the auricle is less than or equal to 1mm.
The pin shaft hole 412 is internally provided with slot 413, and the slot 413 and the pin shaft hole 412 are mutual
Vertically, the pin shaft 11 passes through the slot 412, idler wheel 12, and the straight rib is fixed on by pin shaft hole circlip 10
On muscle 41.
The material of the joint body 1 uses high strength alloy steel, and whole modifier treatment, female adapter end will be there are
Biggish length, in order to which, there are position is fastened, female end design has 90 ° of platform shoulder axle journals, and shoulder is coated in upper, shackle
Specific high efficiency coating processes twice semi-circular joint groove 101,1 internal and external threads of joint body, semi-circular joint on the body
The same circularity of 101 internal diameter of groove is less than or equal to 0.05mm, and 101 inner surface of twice semi-circular joint groove carries out high-frequency quenching, Lip river
Family name's hardness reaches 60HRC or so, and the screw thread at connector both ends carries out bead.
The material of the wear-resistant sleeve 4 uses high strength alloy steel, whole modifier treatment, and wear-resisting length is not less than 150mm,
And use laser melting coating.The inside of wear-resistant sleeve 4 processes 4 groove of twice semicircle wear-resistant sleeve, and ontology internal and external threads, semicircle are wear-resisting
The same circularity for covering 4 trench inner diameters is less than or equal to 0.05mm, and twice semicircle covers 42 inner surface of groove and carries out high-frequency quenching, and Rockwell is hard
Degree reaches 60HRC or so.Uniformly distributed 5 straight rib muscle 41, there is the slot for placing idler wheel 12 in the centre of straight rib muscle 41 on the outside of wear-resistant sleeve 4
413 and pin shaft hole 412, the slope angle up and down of straight rib muscle 41 is to make to make a trip more smooth within 20 °.Equipped with rolling on the outside of wear-resistant sleeve 4
Wheel 12, the pin shaft 11 of idler wheel 12 and pin shaft hole circlip 10 are fixed；
Equipped with high-intensitive idler wheel 12 among the straight rib muscle 41.The shape of idler wheel 12 is oblong, and 12 two sides of idler wheel have
Less than the auricle of 1mm thickness, the exterior contour of 12 axis direction of idler wheel is arcwall face, is matched with casing inner diameter, pin shaft 11 and pin
Axis hole circlip 10 is fixed, and one end of pin shaft 11 is tapped with metric thread, facilitates the dismounting of pin shaft 11.
Steel ball 5, the 5 feeding screw thread of steel ball of wear-resistant sleeve 4 are placed at groove between the joint body 1 and wear-resistant sleeve 4
Mouth 411 installs interior hexagonal silk plug 6, and the lower end of interior hexagonal silk plug 6 is the spherical groove more bigger than 5 radius of steel ball, interior hexagonal silk plug 6
Outside is equipped with silk plug circlip, prevents silk plug 6 from releasing.
Uniformly distributed four metric thread holes on the upper wear ring 2, lower wear ring 8, then by four socket cap holding screws 3
It is fixed.
Roller casing wear prevention subtracts twist joint and is connected between tool joint, and there are enough for the female end of joint body 1
Length, in convenience, there are fasten position when shackle to tong.
The joint body 1 first loads onto wear ring 2, will be on four threaded holes alignment joint body 1 of upper wear ring 2
Then four round slot bores install four interior hexagonal cylindrical end set screws 3, smear high strength thread glue, tightening on holding screw 3
Screw 3 is screwed to behind bottom and beats torque using torque wrench.
It, will from 5 feeding screw thread mouth 411 of steel ball from two on wear-resistant sleeve 4 after the wear-resistant sleeve 4 is enclosed in joint body 1
Steel ball 5 is put into, and steel ball 5 smears lubricating grease before throwing, and steel ball 5 feeds the circular groove formed between full wear-resistant sleeve 4 and joint body 1
Afterwards, it is screwed into feeding screw thread mouth 411 with interior hexagonal silk plug 6, silk plug circlip 7 is finally installed outside interior hexagonal silk plug 6.
There are idler wheel 12, pin shaft 11 and pin shaft hole circlip 10 outside the wear-resistant sleeve 4, passes through pin shaft with pin shaft 11 when assembly
Hole 412 and idler wheel 12 finally fill the fixed limit of pin shaft hole circlip 10.For convenience of the assembly or disassembly of pin shaft 11, in pin shaft 11
Outer end is tapped, and the sectional view after idler wheel 12, the installation of pin shaft 11 is as shown in Figure 3.
After the wear-resistant sleeve 4 installs, lower wear ring 8 is installed, implementation method is same as above the description of wear ring 2.
After the joint body 1 installs lower wear ring 8, it is double insurance, increases the safety of connector, it is resistance under
8 lower section installation axle circlip 9 of bull ring.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (8)
1. a kind of roller casing wear prevention subtracts twist joint, it is characterised in that: including joint body, upper wear ring, lower wear ring, resistance to
Grinding set, the wear-resistant sleeve are placed on the outside of the joint body, and the upper wear ring is fixed on the wear-resistant sleeve
Top, the lower wear ring are fixed on the lower section of the wear-resistant sleeve；
The joint body is equipped with several connector grooves, and the wear-resistant sleeve is equipped with quantity and the connector groove
Identical set groove, the position of the connector groove is corresponding with the set groove respectively, the connector groove and set
Several steel balls is provided between groove；
It is evenly provided with several straight rib muscle on the wear-resistant sleeve, is equipped with pin shaft hole on the straight rib muscle, it is described
Pin shaft hole is internally provided with idler wheel, and pin shaft is provided on the idler wheel, and the pin shaft passes through the pin shaft hole, rolling
Wheel, and be fixed on the straight rib muscle by pin shaft hole circlip.
2. roller casing wear prevention according to claim 1 subtracts twist joint, it is characterised in that: the upper wear ring is under
Wear ring passes through holding screw and is fixed on the joint body.
3. roller casing wear prevention according to claim 2 subtracts twist joint, it is characterised in that: under the lower wear ring
Side is provided with axis circlip, and the axis is fixed on the joint body with circlip.
4. roller casing wear prevention according to claim 1 subtracts twist joint, it is characterised in that: the straight rib muscle is equipped with
Feeding screw thread mouth, the feeding screw thread mouth are internally provided with silk plug, silk plug circlip are provided on the outside of the silk plug.
5. roller casing wear prevention according to claim 4 subtracts twist joint, it is characterised in that: the lower end of the silk plug is set
There is spherical groove, the radius of the spherical groove is greater than the radius of the steel ball.
6. roller casing wear prevention according to claim 1 subtracts twist joint, it is characterised in that: the both ends of the idler wheel are equal
It is provided with auricle, the thickness of the auricle is less than or equal to 1mm.
7. roller casing wear prevention according to claim 4 subtracts twist joint, it is characterised in that: the silk plug is interior hexagonal
Silk plug.
8. roller casing wear prevention according to claim 1 subtracts twist joint, it is characterised in that: the inside of the pin shaft hole
Grooved hole is set, the slot is mutually perpendicular to the pin shaft hole, and the pin shaft passes through the slot, idler wheel, and
It is fixed on by pin shaft hole circlip on the straight rib muscle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821079496.6U CN208686326U (en) | 2018-07-09 | 2018-07-09 | Roller casing wear prevention subtracts twist joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821079496.6U CN208686326U (en) | 2018-07-09 | 2018-07-09 | Roller casing wear prevention subtracts twist joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208686326U true CN208686326U (en) | 2019-04-02 |
Family
ID=65880556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821079496.6U Expired - Fee Related CN208686326U (en) | 2018-07-09 | 2018-07-09 | Roller casing wear prevention subtracts twist joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208686326U (en) |
-
2018
- 2018-07-09 CN CN201821079496.6U patent/CN208686326U/en not_active Expired - Fee Related
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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: 20210603 Address after: 300457 Tianjin Binhai New Area Development Zone Second Avenue 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: No.83, 2nd Street, Binhai New Area Economic and Technological Development Zone, Tianjin 300457 Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |