CN104695897B - A kind of well casing slip casting non-return device - Google Patents
A kind of well casing slip casting non-return device Download PDFInfo
- Publication number
- CN104695897B CN104695897B CN201510113295.8A CN201510113295A CN104695897B CN 104695897 B CN104695897 B CN 104695897B CN 201510113295 A CN201510113295 A CN 201510113295A CN 104695897 B CN104695897 B CN 104695897B
- Authority
- CN
- China
- Prior art keywords
- fixed plate
- well casing
- hole
- slip casting
- guide cylinder
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
Abstract
The invention discloses a kind of well casing slip casting non-return device, including valve body, the buoyancy fixed plate of through-hole structure is set in valve body, guide cylinder in buoyancy fixed plate through hole, sealing clamp on guide cylinder end face, Support bracket in buoyancy fixed plate, the spring between Support bracket and sealing clamp；Injected hole is provided with the wall of the guide cylinder side.Simple structure of the present invention, easy processing is easy to assembling；One integral piece is light；Less demanding to dynamical system, safety is easy to operate；Bearing capacity requirement is hung to boring tower OR gate little, use safety；Substantially increase efficiency of construction.
Description
Technical field
The present invention relates to a kind of well casing slip casting non-return device, belong to mine mechanism technical field, be mainly used in deep big
The super tonnage well casing drifts of borehole engineering major diameter such as bore gas pumping well, osculum, material sprocket hole, emergency escape rescue passage
The floating equipment for installing sinking and solid pipe slip casting check.
Background technology
In deep heavy caliber gas pumping well, the borehole engineering such as osculum, material sprocket hole, emergency escape rescue passage,
In the super tonnage well casing decentralization installation process of major diameter, because boring tower OR gate hangs bearing capacity deficiency, and well casing is installed safely
In place, majority construction uses flotation stopper sinker technique carries out floating and dropping method of cylindrical shaft wall, and this technology must be in well casing foot for decentralization
Flotation stopper is made, there are the following problems for this kind of technology：1st, the making of flotation stopper is wasted time and energy, it is necessary to intercept the well casing of 5m long, is managed
Steel back-up ring is welded with vivo, 1 is pressed with No. 425 ordinary portland cements and medium coarse sand:2 are made into cement mortar records 3m, and bottom is spread with yellow sand
Pad 1m, curing period, is no less than 7 days.2nd, it is necessary to inject slow setting to the space between the borehole wall and well casing after installing well casing and completing
Cement, after first having to be drilled using drilling tool and getting through flotation stopper, slurries is injected until fill, but due to the solidification of slow setting cement
Time is long, result in the trip-out time be difficult hold, get up early, cement mortar does not solidify, the cement of annular space in trip-out process
Flow back to well casing, the solid pipe effect of influence；If evening, the cement slurry sets remained in drilling tool result in blockage, and cause drilling tool to make
With.
Therefore, existing this kind of technology is present low construction efficiency, that work progress is uncontrollable, device fabrication is complicated etc. is all
Many problems, the serious development that have impact on industry.
The content of the invention
To overcome the deficiencies in the prior art, transferred for large-tonnage well casing the invention provides one kind and installed, control
Lifting force processed is hung in lifting allowed band in boring tower OR gate, and simple structure, efficiency of construction be high, easily controllable, safely and effectively well
Pipe slip casting non-return device.
To reach above-mentioned purpose, the technical solution adopted in the present invention is：A kind of well casing slip casting non-return device, including valve
Body, sets the buoyancy fixed plate of through-hole structure, the guide cylinder in buoyancy fixed plate through hole, installed in leading in valve body
To the sealing clamp on cylinder end face, the Support bracket in buoyancy fixed plate, installed in Support bracket and sealing clamp
Between spring；Injected hole is provided with the wall of the guide cylinder side.
Further, the valve body is cylinder, is welded to connect with well casing.
Further, the buoyancy fixed plate is set to through-hole structure in annular, and guide cylinder is logical in correspondence annular
The cylindrical structural of hole size.
Further, the well casing slip casting non-return device also includes being arranged in buoyancy fixed plate, correspondence sealing clamp
Seal trim strip.
Further, it is provided with reinforcement between the buoyancy fixed plate and valve body.
Further, the reinforcement sets two, is symmetricly set on the through hole both sides of buoyancy fixed plate.
Further, the Support bracket is by being distributed on four strip-shaped brackets and the connection of the through hole surrounding of buoyancy fixed plate
The circular support composition of the strip-shaped bracket other end.
Further, the injected hole sets four, is distributed on the wall of guide cylinder side.
Further, the spring sets four, is distributed on sealing clamp.
The method have the benefit that：Simple structure, easy processing is easy to assembling；One integral piece is light；Will to dynamical system
Ask not high, safety is easy to operate；Bearing capacity requirement is hung to boring tower OR gate little, use safety；Substantially increase efficiency of construction.
Brief description of the drawings
The present invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is front sectional view of the present invention；
Fig. 2 is top view of the invention；
Fig. 3 is that connection of the invention uses figure.
In figure：1st, valve body, 2, buoyancy fixed plate, 3, reinforcement, 4, guide cylinder, 5, sealing clamp, 6, seal trim strip, 7, bar
Shape support, 8, circular support, 9, spring, 10, injected hole.
Specific embodiment
A kind of well casing slip casting non-return device as shown in Figure 1, 2, 3, including valve body 1, set through hole knot in valve body
The buoyancy fixed plate 2 of structure, the guide cylinder 4 in buoyancy fixed plate through hole, the sealing clamp on the end face of guide cylinder 4
5, the Support bracket in buoyancy fixed plate 2, the spring 9 between Support bracket and sealing clamp 5；The guiding
Injected hole 10 is provided with 4 side walls of cylinder.
The valve body 1 is cylinder, is welded to connect with well casing.
The buoyancy fixed plate 2 is set to through-hole structure in annular, and guide cylinder 4 is clear size of opening in correspondence annular
Cylindrical structural.
The well casing slip casting non-return device also includes being arranged in buoyancy fixed plate 2, the seal trim strip of correspondence sealing clamp
6。
Reinforcement 3 is provided between the buoyancy fixed plate 2 and valve body 1.
The reinforcement 3 sets two, is symmetricly set on the through hole both sides of buoyancy fixed plate 2.Its two ends of reinforcement will be with
Valve body is firmly welded, and bottom surface is pushed against with buoyancy fixed plate 2 and fixation is played in section weldering, prevents buoyancy fixed plate 2 in stress
The lower deformation of effect；
The Support bracket is by being distributed on four strip-shaped brackets 7 of the through hole surrounding of buoyancy fixed plate 2 and connecting strip branch
The circular support 8 of the frame other end is constituted.Strip-shaped bracket leaves free gap and certain guiding is played to it with sealing clamp 5 to be made
With；Normotopia welds together between circular support and strip-shaped bracket, and fixed support is played to spring 9.
The injected hole 10 sets four, is distributed on the side wall of guide cylinder 4.
The spring 9 sets four, is distributed on sealing clamp 5.By four spring assemblies into one group to the He of sealing clamp 5
Guide cylinder 4 realize it is spacing it is combined closely with buoyancy fixed plate 2 all the time, in normally off, under mud pressure effect more
Pressure is tighter, so as to play sealing function；
Part is processed first, the part of product is welded into a whole；The outer of buoyancy fixed plate 2 and valve block internal diameter
Integrally welded, lower surface is smooth；Steel plate reinforcement 3 is integrally welded by valve body 1 and buoyancy fixed plate 2；Spring 9 presses sealing
Plate 5 and seal trim strip 6 are in normal closure state with buoyancy fixed plate 2, the fluid outside well casing is not entered in well casing.Processing and fabricating
After the completion of by its again with well casing firmly it is integrally welded preparation go into the well；
Because sealing clamp 5 and seal trim strip 6 are closed all the time in the presence of spring 9, as tube welding connection is gone into the well,
It is increasing that buoyancy fixed plate 2 bears outside mud pressure, so buoyancy is also increasing in pipe sinking watching, hoisting mechanism
Lifting force more come also small, boring tower bearing capacity is also less and less.So scientifically realize large-tonnage well casing using law of buoyancy
The requirement installed is transferred, and buoyancy control can be realized, reduce non-cutting time, improve operating efficiency, reduce labour intensity, reach peace
The purpose of full production.
The present invention realizes that buoyancy control reaches the safe optimum state that bearing capacity is hung to hoisting mechanism and boring tower OR gate；Slip casting
Gu pipe can immediately cut open the mouth of pipe after terminating, the purpose of trip-out immediately is realized.It is vexed again after no longer terminating as construction slip casting in the past to be depressed into
2 hours after cement initial set, so as to save the time, improve efficiency；Find to replace unnet situation in mud in drilling tool in time,
Use the logical grouting pipeline of mud pump impulse instead at any time, cement mortar can be prevented to be trapped in drilling rod and block drilling rod internal channel or other pipes
Road.
By foregoing description as can be seen that simple structure of the present invention, easy processing, are easy to assembling；One integral piece is light；To dynamical system
System is less demanding, safety, easy to operate；Bearing capacity requirement is hung to boring tower OR gate little, use safety；Substantially increase construction effect
Rate.
Although detailed description being given to specific embodiment of the invention above and being illustrated, it should be noted that
We can carry out various equivalent changes and modification to above-mentioned implementation method according to conception of the invention, and the function produced by it is made
With still without departing from specification covered it is spiritual when, all should be within protection scope of the present invention.
Claims (5)
1. a kind of well casing slip casting non-return device, it is characterised in that：Including valve body（1）, through-hole structure is set in valve body
Buoyancy fixed plate（2）, the guide cylinder in buoyancy fixed plate through hole（4）, installed in guide cylinder（4）Sealing pressure on end face
Plate（5）, installed in buoyancy fixed plate（2）On Support bracket, installed in Support bracket and sealing clamp（5）Between spring
（9）；The guide cylinder（4）Injected hole is provided with the wall of side（10）；The valve body（1）It is cylinder, is welded to connect with well casing；Institute
State buoyancy fixed plate（2）It is set to through-hole structure in annular, guide cylinder（4）It is the cylinder of clear size of opening in correspondence annular
Structure；The buoyancy fixed plate（2）With valve body（1）Between be provided with reinforcement（3）；The Support bracket is consolidated by being distributed on buoyancy
Fixed board（2）Through hole surrounding four strip-shaped brackets（7）With the circular support of the connection strip-shaped bracket other end（8）Composition.
2. the well casing slip casting non-return device according to claim 1, it is characterised in that：Also include being arranged on buoyancy fixed plate
（2）On, the seal trim strip of correspondence sealing clamp（6）.
3. well casing slip casting non-return device according to claim 1, it is characterised in that：The reinforcement（3）Setting two, it is right
Title is arranged on buoyancy fixed plate（2）Through hole both sides.
4. well casing slip casting non-return device according to claim 1, it is characterised in that：The injected hole（10）Four are set,
It is distributed on guide cylinder（4）On the wall of side.
5. well casing slip casting non-return device according to claim 1, it is characterised in that：The spring（9）Four are set, uniformly
In sealing clamp（5）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510113295.8A CN104695897B (en) | 2015-03-16 | 2015-03-16 | A kind of well casing slip casting non-return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510113295.8A CN104695897B (en) | 2015-03-16 | 2015-03-16 | A kind of well casing slip casting non-return device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104695897A CN104695897A (en) | 2015-06-10 |
| CN104695897B true CN104695897B (en) | 2017-05-31 |
Family
ID=53343400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510113295.8A Expired - Fee Related CN104695897B (en) | 2015-03-16 | 2015-03-16 | A kind of well casing slip casting non-return device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104695897B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502615B (en) * | 2020-12-09 | 2023-01-10 | 中煤特殊凿井有限责任公司 | Construction method of deep large-diameter gas extraction well |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2771091A (en) * | 1954-02-23 | 1956-11-20 | Baker Oil Tools Inc | Drill pipe float valve |
| CN2046923U (en) * | 1989-05-12 | 1989-11-01 | 中原石油勘探局钻井工程服务公司 | Casing pipe auto-grouting device |
| CN2641278Y (en) * | 2003-09-04 | 2004-09-15 | 刘书京 | Automatic grouting, reverse flow limiting type float coupling, float shoe |
| CN201292815Y (en) * | 2008-11-03 | 2009-08-19 | 中国石油集团长城钻探工程有限公司 | Floating shoes for cementing oil well |
| CN202249946U (en) * | 2011-08-12 | 2012-05-30 | 卫国 | Intelligent float valve |
| CN203362054U (en) * | 2013-07-04 | 2013-12-25 | 山西省勘察设计研究院 | Combination device with function of casing placement through buoyancy and function of well cementation through check valves |
| CN203669817U (en) * | 2014-01-23 | 2014-06-25 | 北京捷贝通石油技术有限公司 | Novel inner blowout control drilling tool float valve |
| CN104179473A (en) * | 2013-05-28 | 2014-12-03 | 中国石油化工股份有限公司 | Anti-falling article floating hoop |
| CN204457593U (en) * | 2015-03-16 | 2015-07-08 | 中煤特殊凿井有限责任公司 | A kind of well casing slip casting non-return device |
-
2015
- 2015-03-16 CN CN201510113295.8A patent/CN104695897B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2771091A (en) * | 1954-02-23 | 1956-11-20 | Baker Oil Tools Inc | Drill pipe float valve |
| CN2046923U (en) * | 1989-05-12 | 1989-11-01 | 中原石油勘探局钻井工程服务公司 | Casing pipe auto-grouting device |
| CN2641278Y (en) * | 2003-09-04 | 2004-09-15 | 刘书京 | Automatic grouting, reverse flow limiting type float coupling, float shoe |
| CN201292815Y (en) * | 2008-11-03 | 2009-08-19 | 中国石油集团长城钻探工程有限公司 | Floating shoes for cementing oil well |
| CN202249946U (en) * | 2011-08-12 | 2012-05-30 | 卫国 | Intelligent float valve |
| CN104179473A (en) * | 2013-05-28 | 2014-12-03 | 中国石油化工股份有限公司 | Anti-falling article floating hoop |
| CN203362054U (en) * | 2013-07-04 | 2013-12-25 | 山西省勘察设计研究院 | Combination device with function of casing placement through buoyancy and function of well cementation through check valves |
| CN203669817U (en) * | 2014-01-23 | 2014-06-25 | 北京捷贝通石油技术有限公司 | Novel inner blowout control drilling tool float valve |
| CN204457593U (en) * | 2015-03-16 | 2015-07-08 | 中煤特殊凿井有限责任公司 | A kind of well casing slip casting non-return device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104695897A (en) | 2015-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104373145B (en) | Embedded classification constant-resistance shearing resistance large deformation anchor and method | |
| CN109736864B (en) | Mining hydraulic constant-resistance deformation automatic pressure relief anchor rod and working method thereof | |
| CN112031812B (en) | Drainage positioning grouting pipe piece and construction method thereof | |
| WO2019000775A1 (en) | Self-draining anchor cable system for side slope protection and construction method therefor | |
| CN108868825B (en) | Rapid plugging method for high-pressure large-water-inrush drilling | |
| CN103291354A (en) | Filling and reinforcing method for floor roadway cross-layer pressure-relief borehole | |
| CN102168419B (en) | Method for compounding anchor rod by geotextile reinforcing | |
| CN105134127B (en) | A kind of anti-collapse grouting reinforcement device and its application method | |
| CN210105808U (en) | Packing sealing blowout preventer | |
| CN104695897B (en) | A kind of well casing slip casting non-return device | |
| CN105201447B (en) | A kind of rapid hardening slurries grouting reinforcement system and its application method | |
| CN214836457U (en) | Novel downthehole yielding full-anchor cable | |
| CN204457593U (en) | A kind of well casing slip casting non-return device | |
| CN102748048A (en) | Hole wall grouting anchor cable | |
| CN208486891U (en) | The intelligent slip casting aperture apparatus of tunnel lining trolley | |
| CN108868822A (en) | The intelligent slip casting aperture apparatus of tunnel lining trolley | |
| CN103541679B (en) | Method for sealing underground hydraulic fracture drilled hole of coal mine in combined manner | |
| CN105735937A (en) | Plugging device for water-inrush borehole by filtration flow and pressure relief of hole wall and grouting and fixing of in-hole bushing | |
| CN112282808B (en) | Large mining height and anti-caving coal anchoring top injection device and using method thereof | |
| CN212359711U (en) | Pipe diameter taper sealing water stop valve | |
| CN110219615B (en) | Coal seam pulsating water injection drilling hole sealing device and hole sealing method | |
| CN208416574U (en) | A kind of fast plugging device for high pressure water burst drill | |
| CN105781596A (en) | Flexible support and supporting method | |
| CN205591874U (en) | Plugging device was managed admittedly in sleeve pipe slip casting in class pressure relief vent was strained to gushing water drilling pore wall | |
| CN205778909U (en) | The pipe-plate lining structure of sluicing blood pressure lowering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20190316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |