CN203515413U - Mechanical and hydraulic dual-action ground anchor assembly - Google Patents
Mechanical and hydraulic dual-action ground anchor assembly Download PDFInfo
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- CN203515413U CN203515413U CN201320575979.6U CN201320575979U CN203515413U CN 203515413 U CN203515413 U CN 203515413U CN 201320575979 U CN201320575979 U CN 201320575979U CN 203515413 U CN203515413 U CN 203515413U
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- sleeve
- earth anchor
- sliding sleeve
- platform
- barrel support
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Abstract
The utility model relates to the technical field of ground anchor tools used in well cementing and completion operation of heavy oil thermal recovery in oil and gas fields, and discloses a mechanical and hydraulic dual-action ground anchor assembly. The mechanical and hydraulic dual-action ground anchor assembly comprises a ground anchor sleeve, a central sliding sleeve, a connecting rod, a fluke and an automatic grouting float collar device. An outer annular table is fixed to the outer side of the upper portion of the central sliding sleeve, at least two connecting grooves are distributed in the outer side of the bottom of the outer annular table along the circumference of the outer annular table and the connecting rod is arranged in the connecting grooves in a hinged mode. The outer annular table is located on the inner side of the upper portion of the ground anchor sleeve, the ground anchor sleeve is fixedly installed together with the outer annular table through a ground anchor shear pin and an inner boss is fixed to the inner side of the middle of the ground anchor sleeve. The mechanical and hydraulic dual-action ground anchor assembly is reasonable and compact in structure, and can realize automatic and synchronous grouting through connection of the automatic grouting float collar device which can be communicated with the inner portion of the ground anchor sleeve and can be converted into a forced float collar through pressure building. Moreover, after the circulation of casing pipe installing and well washing is established, ball placing and pressure building can be conducted so as to realize setting, if primary pre-stress exertion does not succeed, secondary setting can be realized through grout-replacing rubber plugs, and therefore convenience and fastness are achieved.
Description
Technical field
the utility model relates to the solid completion practice earth anchor technical field of tools of oil gas field heavy crude heat extraction, is a kind of mechanical and hydraulic double-acting earth anchor assembly.
Background technology
steam injection thermal recovery is common thickened oil recovery mode, earth anchor is conventional a kind of attachment in the solid completion of steam injection thermal recovery well, when now conventional earth anchor is for well cementation, after note ash, for slurry plug, promote earth anchor internal mechanism, open anchor fluke and realize seat extension, earth anchor bottom pipe string must access be forced float collar, grouting in time in setting of casing process.In this process, existence cannot two-step-filling, opens anchor fluke and realizes sitting and while hanging, need first apply pretightning force and then drop into for slurry plug, thereby cause the problem of time and effort consuming.
Summary of the invention
the utility model provides a kind of mechanical and hydraulic double-acting earth anchor assembly, has overcome the deficiency of above-mentioned prior art, and what it can effectively solve that existing earth anchor assembly exists cannot two-step-filling, needs access to force float collar, realizes sitting and hang after well cementation, causes the problem of length consuming time.
the technical solution of the utility model realizes by following measures: a kind of mechanical and hydraulic double-acting earth anchor assembly, comprises earth anchor sleeve, center sliding sleeve, connecting rod, anchor fluke and from grouting floating hoop device; The upper outside of center sliding sleeve is fixed with outer shroud platform, and the bottom outside of outer shroud platform circumferentially has at least two crank-guide ways, is hinged with connecting rod in crank-guide way; Outer shroud platform is positioned at the upper inner of earth anchor sleeve, earth anchor sleeve and outer shroud platform are fixedly installed togather by earth anchor shear pin, the inner side, middle part of earth anchor sleeve is fixed with inner convex platform, the bottom of center sliding sleeve is sleeved in inner convex platform, circumferentially there is the anchor fluke groove corresponding with crank-guide way position at the middle part of earth anchor sleeve lateral wall, in anchor fluke groove, is hinged with anchor fluke; The middle inside of anchor fluke and the lower end of connecting rod are hinged; The lower end of earth anchor sleeve be installed with can communicate with earth anchor sleeve inner and by building the pressure, can be converted to force float collar from grouting floating hoop device.
the further optimization and/or improvements to above-mentioned utility model technical scheme below:
above-mentionedly from grouting floating hoop device, can comprise float collar sleeve, valve seat, inner sliding sleeve, ball valve, Compress Spring and barrel support; Ball valve comprises ball valve rod and be hemispheroidal ball valve platform, and the bottom of ball valve platform is fixed with the ball valve rod that diameter is less than ball valve platform; On the sidewall of inner sliding sleeve, circumferentially have at least one pod apertures, the lower inside of inner sliding sleeve is up-small and down-big taper type; The inner side, middle part of barrel support is provided with the limited ring dais that internal diameter is less than inner sliding sleeve external diameter, and centre bore is arranged at the bottom of barrel support, and the bottom circle distribution that is positioned at the barrel support in centre bore outside has at least one to pass liquid hole; Float collar sleeve inner side is installed with valve seat and barrel support from top to bottom, inner sliding sleeve is positioned at valve seat inner side and is fixedly installed togather by float collar shear pin and valve seat, the bottom of inner sliding sleeve is sleeved on the barrel support upper inner of limited ring dais top, the bottom that ball valve rod is positioned at barrel support and ball valve rod is sleeved on centre bore, is compressed with the Compress Spring that is sleeved on ball valve rod outside between the bottom of ball valve platform and barrel support.
the upper outside of above-mentioned ball valve rod can be fixed with annular boss, and the upper outer of centre bore is fixed with the column that diameter is identical with annular boss diameter, and the top of Compress Spring is sleeved on annular boss outside, and the bottom of Compress Spring is sleeved on column outside; The outside, ball valve rod lower end that is positioned at barrel support below fixedly mounts restraining position ring block by screw thread.
the top of above-mentioned ball valve platform can fixedly mount can wrap up hemispherical rubber sealant.
the step through-hole that the endoporus of Ke Youyu center, the inside sliding sleeve of above-mentioned outer shroud platform communicates; The top of step through-hole and step place thereof, the upper inner of valve seat and the upper inner of inner sliding sleeve be big up and small down inversed taper platform shape all.
the upper inner of above-mentioned earth anchor sleeve can have upper groove, and the base part seat of upper groove has the locating ring between earth anchor sleeve and outer shroud platform, and locating ring and outer shroud platform are fixedly installed togather by earth anchor shear pin.
the quantity of above-mentioned crank-guide way, anchor fluke groove, connecting rod and anchor fluke can be three.
between above-mentioned outer shroud platform and earth anchor sleeve below locating ring, between the bottom and inner convex platform of center sliding sleeve, between the top and valve seat of inner sliding sleeve, between the bottom of inner sliding sleeve and barrel support and can be equipped with sealing ring between valve seat and float collar sleeve.
the inner sliding sleeve outside of above-mentioned corresponding barrel support end face lower position can be distributed with retaining steel-ball groove wide at the top and narrow at the bottom, between retaining steel-ball groove and the inwall of barrel support, is provided with retaining steel ball.
the utility model reasonable and compact in structure, its by connect can communicate with earth anchor sleeve inner and by building the pressure, can be converted to force float collar from grouting floating hoop device, can realize automatic synchronization grouting, and lower complete sleeve pipe well-flushing is set up after circulation the compacting of can pitching spraining and is now sat extension, prestress application is unsuccessful for the first time can sit extension by realizing secondary for slurry plug again, convenient and swift.
Accompanying drawing explanation
accompanying drawing 1 is looked half section structural representation for the master of the utility model most preferred embodiment.
accompanying drawing 2 is looked half section structural representation for the master of accompanying drawing 1 when earth anchor shear pin is cut off.
the master that accompanying drawing 3 is cut off in float collar shear pin for accompanying drawing 2 looks half section structural representation.
coding in accompanying drawing is respectively: 1 is earth anchor sleeve, sliding sleeve centered by 2, 3 is connecting rod, 4 is anchor fluke, 5 is step through-hole, 6 is outer shroud platform, 7 is crank-guide way, 8 is earth anchor shear pin, 9 is anchor fluke groove, 10 is float collar sleeve, 11 is valve seat, 12 is inner sliding sleeve, 13 is Compress Spring, 14 is barrel support, 15 is ball valve rod, 16 is ball valve platform, 17 is pod apertures, 18 is limited ring dais, hole centered by 19, 20 for passing liquid hole, 21 is float collar shear pin, 22 is the ball that builds the pressure, 23 is annular boss, 24 is column, 25 is spacing ring, 26 is rubber sealant, 27 is upper groove, 28 is locating ring, 29 is inner convex platform, 30 is sealing ring, 31 is retaining steel-ball groove, 32 is retaining steel ball.
The specific embodiment
the utility model is not subject to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is to be all described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in accompanying drawing 1,2,3, this mechanical and hydraulic double-acting earth anchor assembly comprises earth anchor sleeve 1, center sliding sleeve 2, connecting rod 3, anchor fluke 4 and from grouting floating hoop device; The upper outside of center sliding sleeve 2 is fixed with outer shroud platform 6, and the bottom outside of outer shroud platform 6 circumferentially has at least two crank-guide ways 7, is hinged with connecting rod 3 in crank-guide way 7; Outer shroud platform 6 is positioned at the upper inner of earth anchor sleeve 1, earth anchor sleeve 1 is fixedly installed togather by earth anchor shear pin 8 with outer shroud platform 6, the inner side, middle part of earth anchor sleeve 1 is fixed with inner convex platform 29, the bottom of center sliding sleeve 2 is sleeved in inner convex platform 29, circumferentially there is the anchor fluke groove 9 corresponding with crank-guide way 7 positions at the middle part of earth anchor sleeve 1 sidewall, is hinged with anchor fluke 4 in anchor fluke groove 9; The lower end of the middle inside of anchor fluke 4 and connecting rod 3 is hinged; The lower end of earth anchor sleeve 1 be installed with can communicate with earth anchor sleeve 1 inside and can be converted to by building the pressure force float collar from grouting floating hoop device.According to demand, from grouting floating hoop device, by building the pressure, be converted to the pressure of cutting off of forcing the required pressure of float collar should be less than earth anchor shear pin 8.
can according to actual needs, above-mentioned mechanical and hydraulic double-acting earth anchor assembly be made further optimization and/or improvements:
as shown in accompanying drawing 1,2,3, from grouting floating hoop device, comprise float collar sleeve 10, valve seat 11, inner sliding sleeve 12, ball valve, Compress Spring 13 and barrel support 14; Ball valve comprises ball valve rod 15 and is hemispheroidal ball valve platform 16, and the bottom of ball valve platform 16 is fixed with the ball valve rod 15 that diameter is less than ball valve platform 16; On the sidewall of inner sliding sleeve 12, circumferentially have at least one pod apertures 17, the lower inside of inner sliding sleeve 12 is up-small and down-big taper type; The inner side, middle part of barrel support 14 is provided with the limited ring dais 18 that internal diameter is less than inner sliding sleeve 12 external diameters, and centre bore 19 is arranged at the bottom of barrel support 14, and the bottom circle distribution that is positioned at the barrel support 14 in centre bore 19 outsides has at least one to pass liquid hole 20; Float collar sleeve 10 inner sides are installed with valve seat 11 and barrel support 14 from top to bottom, inner sliding sleeve 12 is positioned at valve seat 11 inner sides and is fixedly installed togather by float collar shear pin 21 and valve seat 11, the bottom of inner sliding sleeve 12 is sleeved on barrel support 14 upper inner of limited ring dais 18 tops, the bottom that ball valve rod 15 is positioned at barrel support 14 and ball valve rod 15 is sleeved on centre bore 19, is compressed with the Compress Spring 13 that is sleeved on ball valve rod 15 outsides between the bottom of ball valve platform 16 and barrel support 14.In use, when not dropping into build the pressure ball 22 and float collar shear pin 21 and do not cut off, the inside of inner sliding sleeve 12, barrel support 14 is inner and pass the be connected inside of Qie Junyu center sliding sleeve 2, liquid hole 20 communicates, and can guarantee that it is in the milk smoothly; When input builds the pressure after ball 22, when increasing to gradually, pressure cuts off float collar shear pin 21, now inner sliding sleeve 12 will come downwards to limited ring dais 18 upper ends, according to demand, pod apertures 17 now should be able to communicate with the inside of valve seat 11, and high-pressure fluid will enter in the inner sliding sleeve 12 building the pressure between ball 22 and ball valve by pod apertures 17, and acts on ball valve top, now from grouting floating hoop device, be converted to pressure float collar, thereby guarantee its two-step-filling.
as shown in accompanying drawing 1,2,3, the upper outside of ball valve rod 15 is fixed with annular boss 23, the upper outer of centre bore 19 is fixed with the column 24 that diameter is identical with annular boss 23 diameters, the top of Compress Spring 13 is sleeved on annular boss 23 outsides, and the bottom of Compress Spring 13 is sleeved on column 24 outsides; Ball valve rod 15 outsides, lower end that are positioned at barrel support 14 belows fixedly mount restraining position ring block 25 by screw thread.
as shown in accompanying drawing 1,2,3, the fixed installation of the top of ball valve platform 16 can be wrapped up hemispherical rubber sealant 26.Rubber sealant 26 can form with the taper type of base plate through holes bottom good close contact.
as shown in accompanying drawing 1,2,3, the step through-hole 5 that the endoporus of You Yu center, the inside sliding sleeve 2 of outer shroud platform 6 communicates; The upper inner of the top of step through-hole 5 and step place thereof, valve seat 11 and the upper inner of inner sliding sleeve 12 be big up and small down inversed taper platform shape all.The endoporus that is inversed taper platform shape can be convenient to guide the upper inner of ball 22 to inner sliding sleeve 12 that build the pressure.
as shown in accompanying drawing 1,2,3, the upper inner of earth anchor sleeve 1 has upper groove 27, and the base part seat of upper groove 27 has the locating ring 28 between earth anchor sleeve 1 and outer shroud platform 6, and locating ring 28 and outer shroud platform 6 are fixedly installed togather by earth anchor shear pin 8.Increase locating ring 28, Ke Jiangqiyu center sliding sleeve 2 is fixedly connected with the mutual location of realizing center sliding sleeve 2 and earth anchor sleeve 1, thereby simplify the processing technology of earth anchor sleeve 1, also by maintenance, can change separately the application life that locating ring 28 has improved earth anchor sleeve 1 simultaneously.
as shown in accompanying drawing 1,2,3, the quantity of crank-guide way 7, anchor fluke groove 9, connecting rod 3 and anchor fluke 4 is three.Can make like this utlity model has good effect placed in the middle.
as shown in accompanying drawing 1,2,3, between outer shroud platform 6 and earth anchor sleeve 1 below locating ring 28, between the bottom and inner convex platform 29 of center sliding sleeve 2, between the top and valve seat 11 of inner sliding sleeve 12, between the bottom of inner sliding sleeve 12 and barrel support 14 and be equipped with sealing ring 30 between valve seat 11 and float collar sleeve 10.
as shown in accompanying drawing 1,2,3, inner sliding sleeve 12 outsides of corresponding barrel support 14 end face lower positions are distributed with retaining steel-ball groove 31 wide at the top and narrow at the bottom, between retaining steel-ball groove and the inwall of barrel support 14, are provided with retaining steel ball 32.
above technical characterictic has formed most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
the use procedure of the utility model most preferred embodiment: as shown in Figure 1, the utility model is accessed in completion pipe string by design, and lower pipe string enters precalculated position, in setting of casing process, need not be in the milk, after pipe string enters well, well-flushing adjustment mud mud can, to cementing requirements, drop into the ball 22 that builds the pressure, and be pumped to inner sliding sleeve 12 upper inner, the formation pressure of spraining, pressure increases gradually; In this process, will first cut off earth anchor shear pin 8, as shown in Figure 2, now center sliding sleeve 2 is descending and promote connecting rod 3 to anchor fluke 4 is strutted for its state, and anchor fluke 4 embeds stratum, carries and apply prestressing force to builder's tonnage on driller; Continue to sprain to be depressed into and cut off float collar shear pin 21, as shown in Figure 3, now inner sliding sleeve 12 will come downwards to limited ring dais 18 upper ends to its state, from grouting floating hoop device, be converted to pressure float collar, form and set up new circulation canal.Flow process is noted prepad fluid routinely, and cement paste, for slurry, in a unsuccessful situation of prestress application, can apply prestressing force by secondary when for slurry.
Claims (9)
1. a mechanical and hydraulic double-acting earth anchor assembly, is characterized in that comprising earth anchor sleeve, center sliding sleeve, connecting rod, anchor fluke and from grouting floating hoop device; The upper outside of center sliding sleeve is fixed with outer shroud platform, and the bottom outside of outer shroud platform circumferentially has at least two crank-guide ways, is hinged with connecting rod in crank-guide way; Outer shroud platform is positioned at the upper inner of earth anchor sleeve, earth anchor sleeve and outer shroud platform are fixedly installed togather by earth anchor shear pin, the inner side, middle part of earth anchor sleeve is fixed with inner convex platform, the bottom of center sliding sleeve is sleeved in inner convex platform, circumferentially there is the anchor fluke groove corresponding with crank-guide way position at the middle part of earth anchor sleeve lateral wall, in anchor fluke groove, is hinged with anchor fluke; The middle inside of anchor fluke and the lower end of connecting rod are hinged; The lower end of earth anchor sleeve be installed with can communicate with earth anchor sleeve inner and by building the pressure, can be converted to force float collar from grouting floating hoop device.
2. mechanical and hydraulic double-acting earth anchor assembly according to claim 1, is characterized in that comprising float collar sleeve, valve seat, inner sliding sleeve, ball valve, Compress Spring and barrel support from grouting floating hoop device; Ball valve comprises ball valve rod and be hemispheroidal ball valve platform, and the bottom of ball valve platform is fixed with the ball valve rod that diameter is less than ball valve platform; On the sidewall of inner sliding sleeve, circumferentially have at least one pod apertures, the lower inside of inner sliding sleeve is up-small and down-big taper type; The inner side, middle part of barrel support is provided with the limited ring dais that internal diameter is less than inner sliding sleeve external diameter, and centre bore is arranged at the bottom of barrel support, and the bottom circle distribution that is positioned at the barrel support in centre bore outside has at least one to pass liquid hole; Float collar sleeve inner side is installed with valve seat and barrel support from top to bottom, inner sliding sleeve is positioned at valve seat inner side and is fixedly installed togather by float collar shear pin and valve seat, the bottom of inner sliding sleeve is sleeved on the barrel support upper inner of limited ring dais top, the bottom that ball valve rod is positioned at barrel support and ball valve rod is sleeved on centre bore, is compressed with the Compress Spring that is sleeved on ball valve rod outside between the bottom of ball valve platform and barrel support.
3. mechanical and hydraulic double-acting earth anchor assembly according to claim 2, the upper outside that it is characterized in that ball valve rod is fixed with annular boss, the upper outer of centre bore is fixed with the column that diameter is identical with annular boss diameter, the top of Compress Spring is sleeved on annular boss outside, and the bottom of Compress Spring is sleeved on column outside; The outside, ball valve rod lower end that is positioned at barrel support below fixedly mounts restraining position ring block by screw thread.
4. mechanical and hydraulic double-acting earth anchor assembly according to claim 3, is characterized in that the top fixed installation of ball valve platform can be wrapped up hemispherical rubber sealant.
5. according to the mechanical and hydraulic double-acting earth anchor assembly described in claim 2 or 3 or 4, it is characterized in that the step through-hole that the endoporus of You Yu center, the inside sliding sleeve of outer shroud platform communicates; The top of step through-hole and step place thereof, the upper inner of valve seat and the upper inner of inner sliding sleeve be big up and small down inversed taper platform shape all.
6. according to the mechanical and hydraulic double-acting earth anchor assembly described in claim 2 or 3 or 4, the upper inner that it is characterized in that earth anchor sleeve has upper groove, the base part seat of upper groove has the locating ring between earth anchor sleeve and outer shroud platform, and locating ring and outer shroud platform are fixedly installed togather by earth anchor shear pin; And/or the quantity of connecting rod and anchor fluke is three.
7. mechanical and hydraulic double-acting earth anchor assembly according to claim 5, the upper inner that it is characterized in that earth anchor sleeve has upper groove, the base part seat of upper groove has the locating ring between earth anchor sleeve and outer shroud platform, and locating ring and outer shroud platform are fixedly installed togather by earth anchor shear pin; And/or the quantity of connecting rod and anchor fluke is three.
8. mechanical and hydraulic double-acting earth anchor assembly according to claim 6, is characterized in that between the outer shroud platform and earth anchor sleeve below locating ring, between the bottom and inner convex platform of center sliding sleeve, between the top and valve seat of inner sliding sleeve, between the bottom of inner sliding sleeve and barrel support and be equipped with sealing ring between valve seat and float collar sleeve; And/or the inner sliding sleeve outside of corresponding barrel support end face lower position is distributed with retaining steel-ball groove wide at the top and narrow at the bottom, is provided with retaining steel ball between retaining steel-ball groove and the inwall of barrel support.
9. mechanical and hydraulic double-acting earth anchor assembly according to claim 7, is characterized in that between the outer shroud platform and earth anchor sleeve below locating ring, between the bottom and inner convex platform of center sliding sleeve, between the top and valve seat of inner sliding sleeve, between the bottom of inner sliding sleeve and barrel support and be equipped with sealing ring between valve seat and float collar sleeve; And/or the inner sliding sleeve outside of corresponding barrel support end face lower position is distributed with retaining steel-ball groove wide at the top and narrow at the bottom, is provided with retaining steel ball between retaining steel-ball groove and the inwall of barrel support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575979.6U CN203515413U (en) | 2013-09-17 | 2013-09-17 | Mechanical and hydraulic dual-action ground anchor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575979.6U CN203515413U (en) | 2013-09-17 | 2013-09-17 | Mechanical and hydraulic dual-action ground anchor assembly |
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| Publication Number | Publication Date |
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| CN203515413U true CN203515413U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320575979.6U Expired - Lifetime CN203515413U (en) | 2013-09-17 | 2013-09-17 | Mechanical and hydraulic dual-action ground anchor assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295267A (en) * | 2014-10-27 | 2015-01-21 | 中国石油集团西部钻探工程有限公司 | Automatic grouting integrated type drilling liner cementing pressure building ball seat device |
| CN104790906A (en) * | 2015-04-09 | 2015-07-22 | 中国石油集团西部钻探工程有限公司 | Machinery hydraulic pressure dual-functional prestress well cementation device |
| CN105604511A (en) * | 2016-03-14 | 2016-05-25 | 中国石油集团西部钻探工程有限公司 | Ground anchor for thermal production well |
-
2013
- 2013-09-17 CN CN201320575979.6U patent/CN203515413U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295267A (en) * | 2014-10-27 | 2015-01-21 | 中国石油集团西部钻探工程有限公司 | Automatic grouting integrated type drilling liner cementing pressure building ball seat device |
| CN104790906A (en) * | 2015-04-09 | 2015-07-22 | 中国石油集团西部钻探工程有限公司 | Machinery hydraulic pressure dual-functional prestress well cementation device |
| CN105604511A (en) * | 2016-03-14 | 2016-05-25 | 中国石油集团西部钻探工程有限公司 | Ground anchor for thermal production well |
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Granted publication date: 20140402 |
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