CN207177817U - One kind vibrations float collar - Google Patents
One kind vibrations float collar Download PDFInfo
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- CN207177817U CN207177817U CN201721136886.8U CN201721136886U CN207177817U CN 207177817 U CN207177817 U CN 207177817U CN 201721136886 U CN201721136886 U CN 201721136886U CN 207177817 U CN207177817 U CN 207177817U
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- piston
- dams
- discharge orifice
- lower valve
- housing
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Abstract
The utility model, which provides a kind of vibrations float collar, to be included：Housing and the piston bush that dams, the piston that dams, back-moving spring and the lower valve for being contained in enclosure interior.The utility model structure is relatively easy, reliability is high, in the operating condition without extra power source, by damming, piston periodically changes position to produce the exciting force of a cycle in the Fluid pressure at top and the motive force effect of back-moving spring, it is embodied as the effects such as radial direction water attack, extensional vibration and the pulsation of shaft bottom annular pressure, the viscosity of drilling fluid can effectively be reduced and improve displacement efficiency, cement mortar is sufficiently mixed and also functions to certain elimination bubble, is advantageous to the constructing operation of the link such as cleaning, cement injecting and replacement in well cementation.
Description
Technical field：
Oil drilling aid field is the utility model is related to, is applied to more particularly to one kind in casing and cementing operation
Vibrations float collar.
Background technology：
Well cementation in petroleum works is the tripping in sleeve pipe into well, and injects cement to the annular space between well and sleeve pipe
Construction operation.Raising cement sheath cementing strength and displacement efficiency are the keys of the cementing quality obtained.Cementing quality is good
Can ring is not only related to Oil/gas Well smoothly complete, and also affect quality, the length in Oil/gas Well life-span of Oil/gas Well quality after going into operation
Short and oil gas well production height.With the development of petroleum industry, particularly bad ground operation in recent years and complex structural well
Several gradually increases, and the technical barrier and quality problems in cementing operation are also more and more.In order to improve cementing quality, oil is prevented
Air water alters the well cementation kit, it is necessary to new.The well cementation float collar commonly used at present in cementing operation is primarily present following defects：Work(
Can be single, easy seal failure or poorly sealed, influence cementing quality；Vibrating device needs extra power source, construction technology
It is complicated；Existing defects in structure, it is mainly shown as in construction and easily blocks peripheral passage.
The content of the invention：
It is relatively strong and floated without the vibrations in extra power source that the purpose of this utility model is to provide a kind of reliable and stable, function
Hoop, can effectively reduce the viscosity of drilling fluid and improve displacement efficiency.
The technical solution of the utility model is as follows：
The vibrations float collar includes：Housing and the piston bush that dams, the piston that dams, back-moving spring for being contained in enclosure interior
And lower valve, the upper outside of the piston bush that dams are close to be fixed on inner walls, isometrical contraction on the outside of middle and lower part, in housing
Annular space is formed between wall；The piston that dams axially penetrate through dam piston bush and between the piston bush that dams form slide it is close
Sealing-in is touched；The lower valve for the plate-like that the bottom part down of the piston bush that dams is close to be fixed on inner walls for sidepiece, it is described to dam
Piston base center has an aixs cylinder vertically downward, the aixs cylinder from lower valve center through and with lower valve form and be slidingly sealed
Contact；The back-moving spring is around aixs cylinder periphery is arranged at, and its bottom is fixed on lower valve upper surface center, and top, which is fixed on, dams
Piston base；The top end face axis of centres of the piston that dams forms the cavity with certain depth to depression, is set in its cavity wall
There is interior discharge orifice；The lower chamber wall of piston bush of damming is provided with outer discharge orifice, and outer discharge orifice is in the underface of interior discharge orifice, interior
Discharge orifice can overlap before the piston that dams reaches descending extreme position with outer discharge orifice；Piston and the aixs cylinder center of damming
Provided with the flowing hole axially penetrated through, the position in the lower valve close to edge is additionally provided with pod apertures.
For the ease of the connection of the vibrations float collar and sleeve pipe, the upper inner of the housing is provided with what is be engaged with sleeve pipe
Internal thread, lower outside are provided with the external screw thread that is engaged with sleeve pipe, can directly pass through screw thread during use and coordinate and sleeve pipe connection.
The utility model structure is relatively easy, and reliability is high, in the operating condition without extra power source, by damming
Piston periodically changes position in the Fluid pressure at top and the motive force effect of back-moving spring and produces a cycle
Property exciting force, be embodied as radial direction water attack, extensional vibration and shaft bottom annular pressure pulsation etc. effect, can effectively reduce
The viscosity of drilling fluid simultaneously improves displacement efficiency, and cement mortar is sufficiently mixed and also functions to certain elimination bubble, is advantageous to solid
The constructing operation of the links such as cleaning, cement injecting and replacement in well.
Brief description of the drawings：
Fig. 1 is the structural representation of the utility model vibrations float collar；
Fig. 2 be the utility model in the operating condition descent of piston when structural representation.
Embodiment：
The technical characteristics of the utility model and effect are specifically described below in conjunction with the accompanying drawings.As shown in figure 1, the shake
Dynamic float collar includes：Housing 1 and the piston bush 2 that dams being contained in inside housing 1, the piston 3 that dams, back-moving spring 4 and lower valve 5,
The upper outside for damming piston bush 2 is close to be fixed on the inwall of housing 1, isometrical contraction on the outside of middle and lower part, with the inwall of housing 1 it
Between form annular space；The piston 3 that dams axially penetrate through dam piston bush 2 and between the piston bush 2 that dams form slide it is close
Sealing-in is touched, and the bottom part down of the piston bush 2 that dams is the lower valve 5 that sidepiece is close to be fixed on the plate-like of the inwall of housing 1, is thus existed
Dam and one section of cavity 13 is formed between piston bush 2 and lower valve 5；The bottom center of piston 3 of damming has aixs cylinder vertically downward
6, the aixs cylinder 6 from the center of lower valve 5 through and with lower valve 5 form and be slidingly sealed and contact；The back-moving spring 4 is around setting
In the periphery of aixs cylinder 6, its bottom is fixed on the upper surface center of lower valve 5, and top is fixed on the bottom of piston 3 of damming；The work of damming
The top end face axis of centres of plug 3 forms the cavity with certain depth to depression, and its cavity wall is provided with interior discharge orifice 7；Dam work
The lower chamber wall of plug sleeve 2 is provided with outer discharge orifice 8, and outer discharge orifice 8 is in the underface of interior discharge orifice 7, and interior discharge orifice 7 can cut
Stream piston 3 overlaps before reaching descending extreme position with outer discharge orifice 8；It is described to dam piston 3 and the center of aixs cylinder 6 is provided with and axially penetrated through
Flowing hole 9, the position in the lower valve 5 close to edge is additionally provided with pod apertures 10.In the present embodiment, dam the top of piston 3
Contact surface between outside and the inner side of piston bush 2 of damming is provided with two-stage O-ring seal (primary seal circle 11 and secondary seal circle
12) top of interior discharge orifice 7, is respectively positioned on, is achieved in being slidingly sealed contact between the two.In addition, the upper inner of housing 1 is set
There is the internal thread being engaged with sleeve pipe, lower outside is provided with the external screw thread being engaged with sleeve pipe.
During construction, the utility model as a petroleum casing pipe string part with sleeve pipe G.I.H, installed in petroleum casing pipe bottom
Portion.In the operating condition, the piston 3 that dams is constantly descending under the impetus of Top fluidic pressure, while continues downwards
Compression reseting spring 4, when the piston 3 that dams, which comes downwards to interior discharge orifice 7, to be flushed with the outer position of discharge orifice 8, the two overlaps formation and let out
Circulation road, fluid enter cavity 13 by current by pass and flowed out by pod apertures 10 to complete pressure release (as shown in Figure 2).Letting out
The piston 3 that dams during pressure is gradually up under the promotion of back-moving spring 4, and interior discharge orifice 7 misplaces and closed again with outer discharge orifice 8
Current by pass is closed, Fluid pressure is formed again on the top of piston 3 of damming after current by pass closing, and bullet is resetted during up
The motive force of spring 4 also gradually weakens, and when Fluid pressure is better than the motive force of back-moving spring 4, the piston 3 that dams is descending again, by
This is periodically pumped, and periodically dam action and and then the periodic exciting of formation are produced in petroleum casing pipe bottom
Power.While the piston 3 that dams moves back and forth, flowing hole 9 can ensure that shake float collar center has fluid to pass through all the time.
Above-mentioned embodiment is merely to illustrate the utility model, every to be carried out on the basis of technical solution of the present invention
Equivalents and improvement, should not exclude outside protection scope of the present invention.
Claims (2)
1. one kind vibrations float collar, it is characterised in that including：Housing (1) and the piston bush that dams for being contained in housing (1) inside
(2), dam piston (3), back-moving spring (4) and lower valve (5), the upper outside of the piston bush that dams (2) is close to be fixed on shell
Body (1) inwall, annular space is formed between isometrical contraction, with housing (1) inwall on the outside of middle and lower part；The piston that dams (3) axle
Contacted to forming to be slidingly sealed through the piston bush that dams (2) and between the piston bush that dams (2)；The piston bush that dams (2)
Bottom part down is the lower valve (5) that sidepiece is close to be fixed on the plate-like of housing (1) inwall, the piston that dams (3) the bottom center tool
Have an aixs cylinder (6) vertically downward, the aixs cylinder (6) from lower valve (5) center through and with lower valve (5) form to be slidingly sealed and connect
Touch；The back-moving spring (4) is fixed on lower valve (5) upper surface center around aixs cylinder (6) periphery, its bottom is arranged at, and top is solid
It is scheduled on the piston that dams (3) bottom；The top end face axis of centres of the piston that dams (3) forms recessed with certain depth to depression
Chamber, its cavity wall are provided with interior discharge orifice (7)；The lower chamber wall of piston bush (2) of damming is provided with outer discharge orifice (8), outer discharge orifice
(8) be in the underface of interior discharge orifice (7), interior discharge orifice (7) can before the piston that dams (3) reaches descending extreme position with
Outer discharge orifice (8) overlaps；The piston that dams (3) and aixs cylinder (6) center are provided with the flowing hole (9) axially penetrated through, the lower valve
(5) position on close to edge is additionally provided with pod apertures (10).
2. vibrations float collar according to claim 1, it is characterised in that：The upper inner of the housing (1) is provided with and sleeve pipe
The internal thread being engaged, lower outside are provided with the external screw thread being engaged with sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136886.8U CN207177817U (en) | 2017-09-06 | 2017-09-06 | One kind vibrations float collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136886.8U CN207177817U (en) | 2017-09-06 | 2017-09-06 | One kind vibrations float collar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207177817U true CN207177817U (en) | 2018-04-03 |
Family
ID=61743009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721136886.8U Active CN207177817U (en) | 2017-09-06 | 2017-09-06 | One kind vibrations float collar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207177817U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374576A (en) * | 2019-09-05 | 2019-10-25 | 大庆华油石油科技开发有限公司 | A kind of sanding machine for oil field stratum pressure break |
| CN111911124A (en) * | 2020-08-26 | 2020-11-10 | 中国石油大学(北京) | Ball-throwing type energy-gathering fracturing tool |
| CN113216897A (en) * | 2021-05-27 | 2021-08-06 | 刘峰铄 | Float collar float shoe for well cementation construction |
-
2017
- 2017-09-06 CN CN201721136886.8U patent/CN207177817U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374576A (en) * | 2019-09-05 | 2019-10-25 | 大庆华油石油科技开发有限公司 | A kind of sanding machine for oil field stratum pressure break |
| CN111911124A (en) * | 2020-08-26 | 2020-11-10 | 中国石油大学(北京) | Ball-throwing type energy-gathering fracturing tool |
| CN111911124B (en) * | 2020-08-26 | 2021-10-15 | 中国石油大学(北京) | Ball-throwing type energy-gathering fracturing tool |
| CN113216897A (en) * | 2021-05-27 | 2021-08-06 | 刘峰铄 | Float collar float shoe for well cementation construction |
| CN113216897B (en) * | 2021-05-27 | 2022-07-08 | 大庆市天德忠石油科技有限公司 | Float collar float shoe for well cementation construction |
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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: 20211110 Address after: 100007 No. 9, Dongzhimen North Street, Dongcheng District, Beijing Patentee after: China National Petroleum Corporation Patentee after: CNPC Bohai Drilling Engineering Co., Ltd Address before: 062552 No. 23, Yanshan Road, Renqiu City, Hebei Province, Cangzhou City, Hebei Province Patentee before: CNPC Bohai Drilling Engineering Co., Ltd |
|
| TR01 | Transfer of patent right |