CN201187278Y - Automatic mud grouting floating hoop and floating shoe - Google Patents
Automatic mud grouting floating hoop and floating shoe Download PDFInfo
- Publication number
- CN201187278Y CN201187278Y CNU2008201035972U CN200820103597U CN201187278Y CN 201187278 Y CN201187278 Y CN 201187278Y CN U2008201035972 U CNU2008201035972 U CN U2008201035972U CN 200820103597 U CN200820103597 U CN 200820103597U CN 201187278 Y CN201187278 Y CN 201187278Y
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- float
- seat
- wall
- hole
- cylindrical shell
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Abstract
The utility model relates to an automatic slush grouting float collar float shoe. A honeycomb duct body is installed in an inner step-shaped through threads; a float ball seat with a conical opening is arranged on the lower part of the honeycomb duct body; a float ball basket with a float ball installed therein is fixedly connected on the inner wall of a cylinder body below the honeycomb duct body; a fixed frame with cylindrical inner wall is fixedly installed on the cylindrical inner wall below the float ball basket; a buoy seat with a piston is provided; the piston is matched with the cylindrical inner wall of the fixed frame; symmetrical jaw catches are arranged on the piston of the buoy on the surface where a through-hole is arranged and used for clamping a float ball on the bottom part of the float ball basket; a seat hole is formed on the lower part of the buoy seat; a buoy with a through-hole on the side wall thereof is matched and installed on the seat hole of the buoy seat through a disc rib on the upper part thereof; and a tray with a through-hole is fixedly connected in the cylinder body on the lower part of the buoy seat. When the float shoe conducts well cementing operation, the slurry in a well automatically enters a sleeve, so as to reduce the buoyancy. After the well cementing operation is completed, sealing can be automatically formed so as to prevent the backflow of cement slurry. The float shoe has the advantages of reasonable structure, reliable performance, high well cementing quality and improved work efficiency.
Description
Technical field
The utility model relates to the device that uses in the oil drilling well cementing operation, particularly automatic mud grouting float collar float shoe.
Background technology
In the oil drilling well cementing operation, need in the well of having bored, be lowered to sleeve pipe, inject cement paste, do isolated substance, place the cement paste top with plug or clear water, inject mud then, the control flow for to sleeve bottom float collar float shoe place, ejects cement paste outside the sleeve pipe, termination of pumping, build the pressure, wait waiting on cement.Float collar, float shoe internal construction are identical, and unidirectional function by fluid is all arranged, and just float collar is the cover pipe thread up and down, and the float shoe upper end is the cover pipe thread, and the lower end is taper or hemispherical, plays guiding function.
In the setting of casing process, because the unidirectional function by fluid of float collar, float shoe, sleeve pipe produces buoyancy after being lowered to certain depth, influences setting of casing speed, must stop casing job, in time pours into mud, balance buoyancy.If the sleeve pipe dwell time is long, sleeve pipe is bonded on the borehole wall, the formation accident.
Summary of the invention
The purpose of this utility model is to provide a kind of automatic mud grouting float collar float shoe, when carrying out well cementing operation, can make the mud in the well enter sleeve pipe automatically, reduces sleeve pipe buoyancy; After finishing well cementation, can form sealing automatically, prevent that cement paste from flowing backwards, it is rational in infrastructure, and dependable performance improves work efficiency, the cementing quality height.
The utility model is achieved in that a kind of automatic mud grouting float collar float shoe, the cylindrical shell that comprises cylindric float collar float shoe, on the inwall suitable for reading of cylindrical shell internal thread is being set, on the outer wall of its end opening external screw thread is being set, on the ladder inwall on cylindrical shell top, the diversion tube that the bottom has cone shaped opening ball float seat is installed by screw thread, affixed the ball float basket that ball float is housed on the cylinder inboard wall of diversion tube below, on the square in the key cylinder inboard wall of ball float, installing fixed mount with cylinder inner wall, floating drum seat with piston, its piston matches with the cylinder inner wall of fixed mount, have at floating drum seat piston the symmetrical claw that ball float is stuck in ball float basket bottom is being set on the end face of through hole, the seat hole is being set in the bottom of floating drum seat, the floating drum that sidewall has a through hole cooperates on the seat hole that is installed in the floating drum seat by the disk rib on its top, affixed the pallet with through hole in the cylindrical shell of floating drum seat bottom.
When the oil drilling well cementing operation, in the lower end of sleeve pipe the utility model is installed, in the well of having bored, be lowered to sleeve pipe, inject cement paste, do isolated substance with plug or clear water, place the cement paste top, inject mud then, mud floats keg float, and enter in the floating drum seat from the through hole of keg float sidewall, the top board through hole through top land enters sleeve pipe by ball float basket, diversion tube, reduce sleeve pipe buoyancy, form automatic mud grouting.When finishing the sleeve pipe well-flushing instantly, utilize the pressure from well head circulation well cleanup in well, floating drum and floating drum seat are pushed open, in the process that floating drum moves down, ball float and claw break away from, and recover the effect of one-way sealing.The floating drum seat moves down together with piston, breaks away from fixed mount, fall on the pallet, because of end in contact pallet under the keg float, the through hole that keg float jack-up is made the keg float wall and floating drum seat together with, reopen passage, fluid is passed through, carry out cement injection, replace drilling mud practice.Because after finishing well cementation, the automatic floating ball float seat of getting back to of ball float forms sealing, has prevented that the cement paste refluence from entering sleeve pipe, and has formed the drawback of cement plug, has improved cementing quality.When using the utility model to carry out well cementing operation, make the mud in the well enter sleeve pipe automatically, reduce the buoyancy of sleeve pipe, finish well cementation after, can form sealing automatically, prevent that cement paste from flowing backwards, it is rational in infrastructure, dependable performance.Can improve work efficiency, the cementing quality height.The utility model can be used for the cementing operation of various plug bruising types, pipe notes method well cementation (plug-in type well cementation) in also being used for.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing is a sectional structure schematic diagram of the present utility model.
The specific embodiment
A kind of automatic mud grouting float collar float shoe, as shown in drawings, the cylindrical shell 1 that comprises cylindric float collar float shoe, on the inwall suitable for reading of cylindrical shell 1 internal thread is being set, on the outer wall of its end opening external screw thread is being set, on the ladder inwall on cylindrical shell 1 top, the diversion tube 2 that the bottom has cone shaped opening ball float seat 4 is installed, between cylindrical shell 1 inwall and diversion tube 2 outer walls, concrete articulamentum 3 is being set by screw thread.On ball float seat 4 outer walls, match with the inwall of the ball float seat mount pad of diversion tube 2 bottoms by the sealing ring 5 that is provided with.Affixed the ball float basket 7 that ball float 6 is housed on cylindrical shell 1 inwall of diversion tube 2 belows, ball float basket 7 is fixed on cylindrical shell 1 inwall by its attic base.On 1 inwall of the cylindrical shell below the ball float basket 7, installing fixed mount 9 with cylinder inner wall, floating drum seat 11 with piston, its piston matches with the cylinder inner wall of fixed mount 9, have at floating drum seat piston on the end face of through hole the symmetrical claw 8 that ball float 6 is stuck in ball float basket 7 bottoms is being set, the seat hole is being set in the bottom of floating drum seat 11, the floating drum 12 that sidewall has a through hole cooperates on the seat hole that is installed in floating drum seat 11 by the disk rib on its top, affixed the pallet 13 with through hole in the cylindrical shell 1 of floating drum seat 11 bottoms.The annular groove that is provided with on the positioning convex ring 10 that is provided with on floating drum seat 1 piston wall and fixed mount 9 cylinder inner walls matches.
Claims (5)
1, a kind of automatic mud grouting float collar float shoe, the cylindrical shell (1) that comprises cylindric float collar float shoe, on the inwall suitable for reading of cylindrical shell (1) internal thread is being set, on the outer wall of its end opening external screw thread is being set, it is characterized in that: on the ladder inwall on cylindrical shell (1) top, the diversion tube (2) that the bottom has cone shaped opening ball float seat (4) is installed by screw thread, affixed the ball float basket (7) that ball float (6) is housed on cylindrical shell (1) inwall of diversion tube (2) below, on cylindrical shell (1) inwall of ball float basket (7) below, installing fixed mount (9) with cylinder inner wall, floating drum seat (11) with piston, its piston matches with the cylinder inner wall of fixed mount (9), have at floating drum seat piston the symmetrical claw (8) that ball float (6) is stuck in ball float basket (7) bottom is being set on the end face of through hole, the seat hole is being set in the bottom of floating drum seat (11), the floating drum (12) that sidewall has a through hole cooperates on the seat hole that is installed in floating drum seat (11) by the disk rib on its top, affixed the pallet (13) with through hole in the cylindrical shell (1) of floating drum seat (11) bottom.
2, automatic mud grouting float collar float shoe according to claim 1, it is characterized in that: ball float basket (7) is fixed on cylindrical shell (1) inwall by its attic base.
3, automatic mud grouting float collar float shoe according to claim 1 is characterized in that: match with the inwall of the ball float seat mount pad of diversion tube (2) bottom by the sealing ring (5) that is provided with on ball float seat (4) outer wall.
4, automatic mud grouting float collar float shoe according to claim 1 is characterized in that: between cylindrical shell 1 inwall and diversion tube (2) outer wall concrete articulamentum (3) is being set.
5, automatic mud grouting float collar float shoe according to claim 1 is characterized in that: the annular groove that is provided with on the positioning convex ring (10) that is provided with on floating drum seat (1) piston wall and fixed mount (9) cylinder inner wall matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201035972U CN201187278Y (en) | 2008-04-16 | 2008-04-16 | Automatic mud grouting floating hoop and floating shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201035972U CN201187278Y (en) | 2008-04-16 | 2008-04-16 | Automatic mud grouting floating hoop and floating shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201187278Y true CN201187278Y (en) | 2009-01-28 |
Family
ID=40310297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201035972U Expired - Fee Related CN201187278Y (en) | 2008-04-16 | 2008-04-16 | Automatic mud grouting floating hoop and floating shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201187278Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329048A (en) * | 2014-09-15 | 2015-02-04 | 中国石油化工股份有限公司 | Inner pipe insertion type cementer |
| RU2559968C1 (en) * | 2014-03-11 | 2015-08-20 | Валерий Вагинакович Айгунян | Device by aygunyan for tamping of casing string |
| CN113216897A (en) * | 2021-05-27 | 2021-08-06 | 刘峰铄 | Float collar float shoe for well cementation construction |
-
2008
- 2008-04-16 CN CNU2008201035972U patent/CN201187278Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2559968C1 (en) * | 2014-03-11 | 2015-08-20 | Валерий Вагинакович Айгунян | Device by aygunyan for tamping of casing string |
| CN104329048A (en) * | 2014-09-15 | 2015-02-04 | 中国石油化工股份有限公司 | Inner pipe insertion type cementer |
| CN104329048B (en) * | 2014-09-15 | 2017-05-17 | 中国石油化工股份有限公司 | Inner pipe insertion type cementer |
| 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 |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090128 Termination date: 20110416 |