CN203978324U - A kind of drilling well roller centralizer - Google Patents
A kind of drilling well roller centralizer Download PDFInfo
- Publication number
- CN203978324U CN203978324U CN201420319370.7U CN201420319370U CN203978324U CN 203978324 U CN203978324 U CN 203978324U CN 201420319370 U CN201420319370 U CN 201420319370U CN 203978324 U CN203978324 U CN 203978324U
- Authority
- CN
- China
- Prior art keywords
- roller
- drilling well
- lead
- centralizer
- roller axle
- 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.)
- Expired - Lifetime
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 32
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a kind of drilling well roller centralizer, described drilling well roller centralizer comprises main body, the middle part of described main body is provided with columniform lead, wherein on a side, be provided with rolling assembly at described lead, described rolling assembly comprises roller, described roller is arranged in lead, and can in lead, freely rotate, on the external surface of described roller, being provided with some heads is spherical alloy head, and the external surface of described roller comprises that at least one is exposed at the rolling contact surface in lead outside wall surface outward; On lead by the drilling well roller centralizer in transmission, an auxiliary roller is installed, and in auxiliary roller, install alloy head additional, change traditional drilling well roller centralizer into rolling friction by static friction, the probability that has not only reduced wearing and tearing, alloy head has also improved the durability of drilling well roller centralizer simultaneously.
Description
Technical field
The utility model relates to a kind of drilling well roller centralizer, belongs to well bore field.
Background technology
In the exploration and development process of oil, often use the directed oil well of screw rod drilling well or horizontal well, because the diameter of this province of helicoid hydraulic motor is less than the diameter of the gear wheel that is arranged on its front end, helicoid hydraulic motor plays pendulum.In order to keep the stability of helicoid hydraulic motor in drillng operation and to be convenient to the control of helicoid hydraulic motor to drilling direction.Generally in the rearward end of helicoid hydraulic motor, an erection device is installed, at present, the erection device using on helicoid hydraulic motor, seriously destroy the quality of the borehole wall, because the frictional resistance between drilling well roller centralizer and the borehole wall is larger, not only reduce the drilling efficiency of helicoid hydraulic motor, and also larger to the wearing and tearing of drilling well roller centralizer, cause shorten the application life of drilling well roller centralizer.
Utility model content
Problem to be solved in the utility model is for above problem, provides that a kind of and wall friction resistance are little, the roller drilling well roller centralizer of long service life.
The utility model solves the technical scheme that its technical problem adopts:
A kind of drilling well roller centralizer, described drilling well roller centralizer comprises main body, the middle part of described main body is provided with columniform lead, wherein on a side, be provided with rolling assembly at described lead, described rolling assembly comprises roller, described roller is arranged in lead, and can in lead, freely rotate, on the external surface of described roller, being provided with some heads is spherical alloy head, and the external surface of described roller comprises that at least one is exposed at the rolling contact surface in lead outside wall surface outward.
As further innovation of the present utility model, in described lead, two diameters of processing are less than the cylindrical groove of roller, described two cylindrical grooves are respectively roller axle bed A and roller axle bed B, be provided with a roller axle at the central part of described roller, the two ends of described roller axle are rotated respectively and are fixed on roller axle bed A and roller axle bed B, and described roller rotates around roller axle.
As further innovation of the present utility model, be provided with a groove at described roller axle bed A place, in groove, be provided with a spring catch, spring catch is connected with bottom portion of groove elasticity by spring, described roller axle is provided with a spacing bayonet socket by a side of roller axle bed A, in described roller axle two ends are installed to roller axle bed A and roller axle bed B time, described spring catch is embedded in spacing bayonet socket.
As further innovation of the present utility model, between described lead and roller axle, be fixed by positioning bolt.
As further innovation of the present utility model, described roller comprises at least 2 above point rollers, and described point of roller coaxial array arranged.
The beneficial effects of the utility model are:
1, on the lead of the utility model by the drilling well roller centralizer in transmission, an auxiliary roller is installed, and in auxiliary roller, install alloy head additional, change traditional drilling well roller centralizer into rolling friction by static friction, the probability that has not only reduced wearing and tearing, alloy head has also improved the durability of drilling well roller centralizer simultaneously.
2, roller of the present utility model is installed by roller axle, can replace roller easily, saves cost.
,of the present utility model point of roller can, in the time of boring, adapt to different geological conditions and carry out respectively the rotation of friction speed, further reduced the possibility that drilling well roller centralizer is worn.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is generalized section of the present utility model.
In figure: 1, main body; 2, roller axle bed A; 3, divide roller; 4, alloy head; 5, roller axle; 6, roller axle bed B; 7, positioning bolt; 8, spring catch; 9, spring.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, the utility model is a kind of drilling well roller centralizer, comprise main body 1, in main body 1, be provided with the lead that a diameter is greater than main body 1, in lead, be provided with a cylindrical cavity, be respectively arranged with roller axle bed A2 and roller axle bed B6 at the two ends of columniform cavity, between roller axle bed A2 and roller axle bed B6, be fixed with a roller axle 5, in roller axle 5, be socketed with point roller 3 that 3 coaxial array are arranged, on point roller 3, some alloy heads 4 are fixed, the head that exposes of alloy head 4 is spheroidal, be provided with a groove at roller axle bed A2 place, in groove, be provided with a spring catch 8, spring catch 8 is connected with bottom portion of groove elasticity by spring 9, roller axle is provided with a spacing bayonet socket by a side of roller axle bed A, in described roller axle two ends are installed to roller axle bed A and roller axle bed B time, described spring catch is embedded in spacing bayonet socket,
On lead by the drilling well roller centralizer in transmission, an auxiliary roller is installed, and in auxiliary roller, install alloy head additional, change traditional drilling well roller centralizer into rolling friction by static friction, the probability that has not only reduced wearing and tearing, alloy head has also improved the durability of drilling well roller centralizer simultaneously;
Roller is installed by roller axle, can replace roller easily, saves cost;
Divide roller in the time of boring, to adapt to different geological conditions and to carry out respectively the rotation of friction speed, further reduced the possibility that drilling well roller centralizer is worn.
Taking above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this utility model technological thought, carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on manual, must determine its technical scope according to claim scope.
Claims (5)
1. a drilling well roller centralizer, it is characterized in that: described drilling well roller centralizer comprises main body, the middle part of described main body is provided with columniform lead, wherein on a side, be provided with rolling assembly at described lead, described rolling assembly comprises roller, described roller is arranged in lead, and on the external surface of described roller, being provided with some heads is spherical alloy head, and the external surface of described roller comprises that at least one is exposed at the rolling contact surface in lead outside wall surface outward.
2. a kind of drilling well roller centralizer as claimed in claim 1, it is characterized in that: in described lead, two diameters of processing are less than the cylindrical groove of roller, described two cylindrical grooves are respectively roller axle bed A and roller axle bed B, be provided with a roller axle at the central part of described roller, the two ends of described roller axle are rotated respectively and are fixed on roller axle bed A and roller axle bed B, and described roller rotates around roller axle.
3. a kind of drilling well roller centralizer as claimed in claim 2, it is characterized in that: be provided with a groove at described roller axle bed A place, in groove, be provided with a spring catch, spring catch is connected with bottom portion of groove elasticity by spring, described roller axle is provided with a spacing bayonet socket by a side of roller axle bed A, in described roller axle two ends are installed to roller axle bed A and roller axle bed B time, described spring catch is embedded in spacing bayonet socket.
4. a kind of drilling well roller centralizer as claimed in claim 2, is characterized in that: between described lead and roller axle, be fixed by positioning bolt.
5. a kind of drilling well roller centralizer as claimed in claim 1, is characterized in that: described roller comprises at least 2 above point rollers, and described point of roller coaxial array arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319370.7U CN203978324U (en) | 2014-06-16 | 2014-06-16 | A kind of drilling well roller centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319370.7U CN203978324U (en) | 2014-06-16 | 2014-06-16 | A kind of drilling well roller centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203978324U true CN203978324U (en) | 2014-12-03 |
Family
ID=51975783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420319370.7U Expired - Lifetime CN203978324U (en) | 2014-06-16 | 2014-06-16 | A kind of drilling well roller centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203978324U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194055A (en) * | 2015-04-30 | 2016-12-07 | 中国石油天然气股份有限公司 | Centering guide |
| CN106618930A (en) * | 2017-03-07 | 2017-05-10 | 马延军 | Operating anesthesia head rack |
| CN109505534A (en) * | 2018-12-10 | 2019-03-22 | 盐城庆隆机械有限公司 | A kind of novel elastic centralizer |
-
2014
- 2014-06-16 CN CN201420319370.7U patent/CN203978324U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194055A (en) * | 2015-04-30 | 2016-12-07 | 中国石油天然气股份有限公司 | Centering guide |
| CN106194055B (en) * | 2015-04-30 | 2019-08-02 | 中国石油天然气股份有限公司 | Centering guide |
| CN106618930A (en) * | 2017-03-07 | 2017-05-10 | 马延军 | Operating anesthesia head rack |
| CN109505534A (en) * | 2018-12-10 | 2019-03-22 | 盐城庆隆机械有限公司 | A kind of novel elastic centralizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |