CN201265361Y - Grouting unfreezing apparatus for casing tube - Google Patents
Grouting unfreezing apparatus for casing tube Download PDFInfo
- Publication number
- CN201265361Y CN201265361Y CNU2008200298097U CN200820029809U CN201265361Y CN 201265361 Y CN201265361 Y CN 201265361Y CN U2008200298097 U CNU2008200298097 U CN U2008200298097U CN 200820029809 U CN200820029809 U CN 200820029809U CN 201265361 Y CN201265361 Y CN 201265361Y
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- CN
- China
- Prior art keywords
- grouting
- sleeve
- casing
- release device
- release
- 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 - Fee Related
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Abstract
The utility model relates to a sleeve grouting jam-release device belonging to a special tool used for rapid grouting and stuck release for the casing operation. The sleeve grouting jam-release device comprises four parts of a drill pipe joint connected with a water tap, a glue sealing assembly used for sealing the inside diameter of a sleeve pipe, a valve assembly used for controlling the opening pressure and the relief pressure and a guide pipe assembly used for guiding the device to smoothly enter in the inner hole of the sleeve pipe during the sleeve grouting and protecting the sleeve pipe coupler thread, and the four parts are connected into a whole respectively through a standard thread in sequence. Mud with pressure is infused into the casing string through a central tube of a power water tap, a packing element is used for sealing the inner hole of the sleeve pipe under the pressure of the mud, and the mud circulating is performed to achieve purposes for unblocking and jam release. By using the sleeve grouting jam-release device, the deviated well or the horizontal well with complex underground conditions can reach the casing side for mud circulating operation to reduce underground accidents and improve the operating efficiency of the casing.
Description
Technical field
The utility model belongs to the oil drilling equipment technical field, is in the milk fast and the special tool of the unfreezing that is hampered especially for casing job.
Background technology
In the Process of Oil Well Drilling, if usually during setting of casing the bottom be hampered or meet card, one puts forward of sleeve pipe of several kms be carried out continuing setting of casing again after the drifting, had a strong impact on operating efficiency like this.Simultaneously every following 2～3 sleeve pipes all need in sleeve pipe mud grouting with assurance casing string internal and external pressure balance when normal casing job.Be that driller draws rubber tube to be in the milk in the past, operate not only dirty but also tired and very the trouble, also can severe contamination rig floor and driller.
Summary of the invention
The utility model purpose provides a kind of drillng operation sleeve grouting release device, to increase work efficiency greatly.
Specifically; the sleeve grouting release device, it is made up of the tool joint that is used for connecting with water tap, the glue envelope assembly that is used for the Sealed casing pipe internal diameter, guiding device enters cover pipe orifice and protective casing box cupling screw thread smoothly when being used to control the valve assembly of opening pressure and release pressure and being used for the casing string mud grouting guiding tube assembly four parts and four parts all adopt standard thread to connect into an integral body successively.
The sealing assembly mainly is made up of the fittings body of being convenient to be connected with drill rod thread in the tool joint, glue envelope, positioning sleeve and fairlead; The glue envelope has similar frustum of a cone profile and is enclosed within on the fittings body, and positioning sleeve is enclosed within on the fittings body and by glue envelope part and surrounds, and fairlead is enclosed within and is positioned at the one end on the fittings body.
Valve assembly comprises open check valve and release one way valve, and open check valve is installed in the urceolus by spacer, and urceolus one end is shaped on the drill rod thread that is used to connect, and the other end of urceolus is connected with connecting cylinder; The outer suit opening valve spring of open check valve also is installed in the connecting cylinder together, and the other end of connecting cylinder links to each other with rubber hose coupling.
Guiding tube assembly threaded one end is used for being connected with valve assembly, the other end is the hose sebific duct that band closes up.
The utility model beneficial effect: the sleeve grouting release device is to be used for that casing job is in the milk fast and the special tool of the unfreezing that is hampered, the 4 1/2IF tool joints on device top are connected in power swivel central tube bottom, during normal casing job, can in casing string, pour into mud easily.If the bottom is hampered or meets card, no matter sleeve pipe is in any position, the cartridge of release device can be lowered to the cover pipe orifice, mud by power swivel central tube casting pressure in casing string, packing element is sealed the sleeve pipe endoporus under mud pressure, carry out mud circulation to reach the purpose of separating resistance and unfreezing.Use the sleeve grouting release device, can also reach the trap operation of tube edge circulating mud of limit to the inclined shaft of down-hole situation complexity or horizontal well, to reduce down-hole accident, the effect that improves casing job efficient.If usually the bottom is hampered or meets card during setting of casing, will be with one puts forward of sleeve pipe of several kms, carry out continuing setting of casing again after the drifting, and this device has solved this problem effectively, when being hampered or meet card, can easily device be lowered in the sleeve pipe, by glue envelope assembly sleeve aperture is sealed, carry out mud circulation, make sleeve pipe separate resistance and unfreezing, do not need sleeve pipe is put on, finish the sleeve pipe G.I.H smoothly.Every following 2～3 sleeve pipes all need in sleeve pipe mud grouting with assurance casing string internal and external pressure balance during normal casing job.Be that driller draws rubber tube to be in the milk in the past, operate not only dirty but also tired and very the trouble, adopt this device after, operation is very easy, only need the driller to operate to mention on the water tap to transfer, turn on pump and termination of pumping, under the effect of one way valve, can seal mud in the pipe after the termination of pumping very soon, can not pollute rig floor and driller.
Description of drawings
Fig. 1 release device assembly figure that is in the milk.
Fig. 2 glue envelope assembly schematic diagram.
Fig. 3 valve assembly schematic diagram.
Fig. 4 guiding tube assembly schematic diagram.
The specific embodiment
Shown in Fig. 1-4, the utility model device mainly is made up of four parts, i.e. tool joint 1, glue envelope assembly 2, valve assembly 3, guiding tube assembly 4.This four part all adopts standard thread to connect.
1) tool joint: be used for connecting with water tap, its upper end is 410, and the lower end is 411 tool joint buttons, be to adapt to the operations of different length suspension ring, is furnished with the tool joint of 4 kinds of length, be respectively 2 ', 3 ', 4 ', 5 '.
2) sealing assembly: be used for the Sealed casing pipe internal diameter.Sealing assembly 2 mainly is made up of the fittings body 2-2 of being convenient to be connected with drill rod thread 2-1 in the tool joint 1, glue envelope 2-3, positioning sleeve 2-4 and fairlead 2-5; Glue envelope 2-3 has similar frustum of a cone profile and is enclosed within on the fittings body 2-2, and positioning sleeve 2-4 is enclosed within fittings body 2-2 and upward and by glue envelope 2-3 partly surrounds, and fairlead 2-5 is enclosed within and is positioned at the one end on the fittings body 2-2.A kind of glue envelope specification can adapt to 3 kinds of close casing inner diameters, as changing the corresponding replacing glue envelope of sleeve pipe specification assembly.
3) valve assembly: be used to control opening pressure and release pressure, mainly form by open check valve and release one way valve, open check valve 3-5 is installed in the urceolus 3-2 by spacer 3-4, and urceolus 3-2 one end is shaped on the drill rod thread 3-1 that is used to connect, and the other end of urceolus 3-2 is connected with connecting cylinder 3-6; The outer suit opening valve spring 3-7 of open check valve 3-5 also is installed in the connecting cylinder 3-6 together, and the other end of connecting cylinder 3-6 links to each other with rubber hose coupling 3-8.It is that valve just can be opened when being used for controlling grouting pressure greater than 0.9MPa, and when stopping grouting, pipeline can not stain operator and casing threads with self-styled.Discharge one way valve and be under can't the situation of unfreezing with pressure mud, packing element is proposed, pressure in the casing string must be discharged, the spring controlled pressure that discharges one way valve is 0.3MPa, check valve apparatus is closed automatically when pressure drops to 0.3MPa in the tubing string, on unlikely formation negative pressure in the tubing string when carrying packing element.
4) guiding tube assembly: when being mainly used in the casing string mud grouting, guiding device enters the cover pipe orifice smoothly, and protective casing box cupling screw thread.Guiding tube assembly 4 TOE withhold the hose sebific duct 4-2 that joint 4-1, the other end close up for band.
Claims (4)
1, sleeve grouting release device is characterized in that it is by the tool joint (1) that is used for connecting with water tap, the glue envelope assembly (2) that is used for the Sealed casing pipe internal diameter, guiding device enters smoothly that guiding tube assembly (4) four parts of overlapping pipe orifice and protective casing box cupling screw thread are formed and four parts all adopt standard thread to connect into an integral body successively when being used to control the valve assembly (3) of opening pressure and release pressure and being used for the casing string mud grouting.
2, sleeve grouting release device according to claim 1 is characterized in that sealing assembly (2) mainly seals (2-3), positioning sleeve (2-4) and fairlead (2-5) by fittings body (2-2), the glue of being convenient to be connected with the last drill rod thread (2-1) of tool joint (1) and forms; Glue envelope (2-3) has similar frustum of a cone profile and is enclosed within on the fittings body (2-2), and positioning sleeve (2-4) is enclosed within fittings body (2-2) and goes up and partly surrounded by glue envelope (2-3), and fairlead (2-5) is enclosed within on the fittings body (2-2) and is positioned at the one end.
3, sleeve grouting release device according to claim 1, it is characterized in that valve assembly (3) comprises open check valve (3-5) and discharges one way valve (3-3), open check valve (3-5) is installed in the urceolus (3-2) by spacer (3-4), urceolus (3-2) end is shaped on the drill rod thread (3-1) that is used to connect, and the other end of urceolus (3-2) is connected with connecting cylinder (3-6); Open check valve (3-5) outer suit opening valve spring (3-7) also is installed in the connecting cylinder (3-6) together, and the other end of connecting cylinder (3-6) links to each other with rubber hose coupling (3-8).
4, sleeve grouting release device according to claim 1, what it is characterized in that guiding tube assembly (4) TOE withholds joint (4-1), the other end for being with the hose sebific duct (4-2) that closes up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200298097U CN201265361Y (en) | 2008-07-22 | 2008-07-22 | Grouting unfreezing apparatus for casing tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200298097U CN201265361Y (en) | 2008-07-22 | 2008-07-22 | Grouting unfreezing apparatus for casing tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201265361Y true CN201265361Y (en) | 2009-07-01 |
Family
ID=40831729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200298097U Expired - Fee Related CN201265361Y (en) | 2008-07-22 | 2008-07-22 | Grouting unfreezing apparatus for casing tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201265361Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117905397A (en) * | 2024-03-19 | 2024-04-19 | 胜利油田胜机石油装备有限公司 | Electroplating anti-corrosion airtight oil sleeve with double sealing structure |
-
2008
- 2008-07-22 CN CNU2008200298097U patent/CN201265361Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117905397A (en) * | 2024-03-19 | 2024-04-19 | 胜利油田胜机石油装备有限公司 | Electroplating anti-corrosion airtight oil sleeve with double sealing structure |
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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: 20090701 Termination date: 20120722 |