CN201851077U - Anti-rotation device of well cementing rubber stopper - Google Patents
Anti-rotation device of well cementing rubber stopper Download PDFInfo
- Publication number
- CN201851077U CN201851077U CN2010206045107U CN201020604510U CN201851077U CN 201851077 U CN201851077 U CN 201851077U CN 2010206045107 U CN2010206045107 U CN 2010206045107U CN 201020604510 U CN201020604510 U CN 201020604510U CN 201851077 U CN201851077 U CN 201851077U
- Authority
- CN
- China
- Prior art keywords
- head
- rotation
- core
- plug
- outside
- 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 - Lifetime
Links
Images
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model relates to the technical field of a well cementing rubber stopper rotation preventing device of an oil and gas well, and provides an anti-rotation device of a well cementing rubber stopper, which comprises a rubber stopper body, a rubber stopper core, an anti-rotation core, an anti-rotation core seat and a floating hoop, wherein the rubber stopper body is fixed at the outer side of the rubber stopper core, the frustum-shaped anti-rotation core with a wide top and a narrow bottom is fixed on the lower part of the rubber stopper cover, bevel gear-shaped bosses are uniformly fixed at intervals from top to bottom on the outer side of the anti-rotation core, the upper part of the anti-rotation core seat is provided with a frustum-shaped installation cavity with a wide top and a narrow bottom, meshing grooves are uniformly distributed at intervals on the side wall of the installation cavity, and the bevel gear-shaped bosses are meshed in the meshing grooves. The device has a reasonable and compact structure, and is convenient to use, the anti-rotation core and the anti-rotation core seat can be automatically meshed in one step, and in the process of drilling the rubber stopper, the rubber stopper body does not rotate along with a drill bit so as to achieve the purposes of high efficiency, time saving and fast rubber stopper and accessory drilling, so the working efficiency is greatly improved, and the cost and the potential safety hazard are reduced.
Description
Technical field
The utility model relates to the anti-plug tumbler technical field of oil gas well cementing operation, is a kind of cementing plug anti-rotation device.
Background technology
At first to bore the plug operation after the tradition cementing operation, and be plane contact between existing plug and the float collar, when the bit drills cementing plug, cementing plug easily rotates with drill bit, influenced the crushing efficiency of drill bit to cementing plug, has prolonged the time that drill bit drills plug and supporting float collar, not only increased drilling cost, and, casing wall has also been caused more serious wearing and tearing because drill bit rotates in the permanent position for a long time, hide some dangers for for later oil well production.
Summary of the invention
The utility model provides a kind of cementing plug anti-rotation device, has overcome the deficiency of above-mentioned prior art, and it can effectively solve the problem that drill bit easily rotates with cementing plug.
The technical solution of the utility model realizes by following measure: a kind of cementing plug anti-rotation device comprises rubber plug body, plug core, anti-rotation core, anti-rotation core print seat and float collar; The outside at the plug core is fixed with rubber plug body, be fixed with the anti-rotation core of the taper type that is wide at the top and narrow at the bottom in the bottom of plug core, even from top to bottom fixed interval has bevel gear type boss in the outside of anti-rotation core, the installation cavity that is taper type wide at the top and narrow at the bottom is arranged on the top of anti-rotation core print seat, on the sidewall of installation cavity, evenly be intervally distributed with mesh groove, bevel gear type boss is engaged in the mesh groove, the anti-rotation core print seat is fixedly mounted in the middle part of float collar, and at least one and the anti-rotation core beveled cone with tapering is arranged in the outside of rubber plug body.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
The cross section top of above-mentioned bevel gear type boss can become smooth arc, the linear corner angle of cross section root of bevel gear type boss, and the linear corner angle in the top of mesh groove, the root of mesh groove becomes smooth arc.
Can there be axially extending bore at the middle part of above-mentioned anti-rotation core.
Above-mentioned float collar can comprise float collar body, valve head, valve seat, valve rod, compression spring and holder; The valve seat of external diameter less than float collar body internal diameter arranged in the float collar body, valve seat comprises upper binding head, seal spool body and lower union joint, upper binding head, seal spool body and lower union joint are fixed together from top to bottom, the outside, upper end of upper binding head is fixed together by screw thread with the inboard, lower end of anti-rotation core print seat, the seal spool body is up-narrow and down-wide cone table, the outside of holder is fixedly mounted in the lower end of lower union joint by screw thread, there is installing hole at middle part at holder, the upper end of valve rod is fixed with valve head, the lower end of valve rod is positioned at installing hole, be equipped with in the valve rod outside and can make valve head withstand on compression spring on the seal spool body medial surface, the upper end of compression spring withstands on the bottom surface of valve head, the lower end of compression spring is fixed on the holder, on the mount pad in the compression spring outside, the cement paste discharge orifice is arranged, at the float collar body, valve seat, form installation cavity between the beveled cone of anti-rotation core print seat and rubber plug body bottommost, in installation cavity, be installed with cement stone.
Mounting groove can be arranged at the bottom of above-mentioned plug core, the anti-rotation core comprises installation head and is the anti-rotary head of taper type wide at the top and narrow at the bottom, the bottom of installation head and the top of anti-rotary head are fixed together, the external diameter of installation head is less than anti-rotation crown portion external diameter, installation head is fixedly mounted in the mounting groove by screw thread, even from top to bottom fixed interval has bevel gear type boss in the outside of anti-rotary head, and there is axially extending bore at the middle part of installation head and anti-rotary head.
Above-mentioned bevel gear type boss can be 9.
The utility model reasonable and compact in structure, easy to use, anti-rotation core and anti-rotation core print seat can be realized disposable automatic engagement, in boring the plug process, rubber plug body no longer rotates with drill bit, thereby therefore the purpose that reaches efficient, saves time, bores plug and annex has fast greatly improved operating efficiency, has reduced cost and potential safety hazard.
Description of drawings
Accompanying drawing 1 is looked the broken section structural representation for the master of the utility model most preferred embodiment.
Accompanying drawing 2 is looked the half section structural representation for the master after rubber plug body, plug core, anti-rotation core connect in the utility model most preferred embodiment.
Accompanying drawing 3 is to prevent in the accompanying drawing 2 that the A of rotary head is to structural representation.
Accompanying drawing 5 is the plan structure schematic diagram of accompanying drawing 4.
Accompanying drawing 6 is that the B-B of accompanying drawing 4 is to the sectional structure schematic diagram.
Accompanying drawing 7 is looked the half section structural representation for the master that anti-rotation core print seat in the utility model most preferred embodiment is installed in the float collar.
Coding in the accompanying drawing is respectively: 1 is rubber plug body, and 2 is the plug core, and 3 is the anti-rotation core print seat, and 4 is bevel gear type boss, 5 is installation cavity, and 6 is mesh groove, and 7 is beveled cone, and 8 is axially extending bore, 9 is the float collar body, and 10 is valve head, and 11 is valve rod, 12 are the compression spring, and 13 is holder, and 14 is upper binding head, 15 is the seal spool body, and 16 is lower union joint, and 17 are anti-rotary head, 18 is the cement paste discharge orifice, and 19 is cement stone, and 20 is installation head.
The specific embodiment
The utility model is not subjected 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 all is that the Butut mode according to Figure of description is described, as: the position relation of upper and lower, left and right etc. is what 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:
Shown in accompanying drawing 1 to 7, this cementing plug anti-rotation device comprises rubber plug body 1, plug core 2, anti-rotation core, anti-rotation core print seat 3 and float collar; Be fixed with rubber plug body 1 in the outside of plug core 2, be fixed with the anti-rotation core of the taper type that is wide at the top and narrow at the bottom in the bottom of plug core 2, even from top to bottom fixed interval has bevel gear type boss 4 in the outside of anti-rotation core, the installation cavity 5 that is taper type wide at the top and narrow at the bottom is arranged on the top of anti-rotation core print seat 3, on the sidewall of installation cavity 5, evenly be intervally distributed with mesh groove 6, bevel gear type boss 4 is engaged in the mesh groove 6, anti-rotation core print seat 3 is fixedly mounted in the middle part of float collar, at least one and the anti-rotation core beveled cone 7 with tapering is arranged in the outside of rubber plug body 1, by bevel gear type boss 4 is engaged on rubber plug body 1 is no longer rotated with drill bit, thereby play the anti-rotation effect.
Can according to actual needs above-mentioned cementing plug anti-rotation device be made further optimization and/or improvements:
Shown in accompanying drawing 1 to 7, the cross section top of bevel gear type boss 4 becomes smooth arc, the linear corner angle of cross section root of bevel gear type boss 4, the linear corner angle in the top of mesh groove 6, the root of mesh groove 6 becomes smooth arc, like this, be convenient to guiding, bevel gear type boss 4 can be entered in the mesh groove 6 smoothly and form engagement.
Shown in accompanying drawing 1 to 3, there is axially extending bore 8 at the middle part of anti-rotation core.
Shown in accompanying drawing 1,7, float collar comprises float collar body 9, valve head 10, valve seat, valve rod 11, compression spring 12 and holder 13; The valve seat of external diameter less than float collar body 9 internal diameters arranged in float collar body 9, valve seat comprises upper binding head 14, seal spool body 15 and lower union joint 16, upper binding head 14, seal spool body 15 and lower union joint 16 are fixed together from top to bottom, the outside, upper end of upper binding head 14 is fixed together by screw thread with the inboard, lower end of anti-rotation core print seat 3, seal spool body 15 is up-narrow and down-wide cone table, the outside of holder 13 is fixedly mounted in the lower end of lower union joint 16 by screw thread, there is installing hole at middle part at holder 13, the upper end of valve rod 11 is fixed with valve head 10, the lower end of valve rod 11 is positioned at installing hole, be equipped with in valve rod 11 outsides and can make valve head 10 withstand on compression spring 12 on seal spool body 15 medial surfaces, the upper end of compression spring 12 withstands on the bottom surface of valve head 10, the lower end of compression spring 12 is fixed on the holder 13, on the mount pad 13 in compression spring 13 outsides, cement paste discharge orifice 18 is arranged, at float collar body 9, valve seat, form installation cavity between the beveled cone 7 of anti-rotation core print seat 3 and rubber plug body 1 bottommost, in installation cavity, be installed with cement stone 19.
As accompanying drawing 1,2, shown in 3, mounting groove is arranged at the bottom of plug core 2, the anti-rotation core comprises installation head 20 and is the anti-rotary head 17 of taper type wide at the top and narrow at the bottom, the top of the bottom of installation head 20 and anti-rotary head 17 is fixed together, the external diameter of installation head 20 is less than anti-rotary head 17 top external diameters, installation head 20 is fixedly mounted in the mounting groove by screw thread, even from top to bottom fixed interval has bevel gear type boss 4 in the outside of anti-rotary head 17, there is axially extending bore 8 at the middle part of installation head 20 and anti-rotary head 17, like this, in the subsurface environment of complexity, can make its root gap pressure and ambient pressure balance, avoid damaging parts because of suppressing difference.
As shown in Figure 3, bevel gear type boss 4 is 9.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment: when the utility model is gone into the well use, float collar is connected with casing string, and with bunch tube one G.I.H at first, be pressed into the connector of rubber plug body 1, plug core 2 and anti-rotation core during well cementation, when cemented up slurry back replaces from cementing head, replace cement paste and arrive float collar place's bruising until connector.At this moment, 7 of the beveled cone bottom of the oblique cone portion of anti-rotation core and rubber plug body 1 are on the top of anti-rotation core print seat 3 and form bruising.Bevel gear type boss 4 is engaged on and forms engagement in the mesh groove 6, and like this, when boring the plug operation, rubber plug body 1 just no longer rotates with drill bit, plays the anti-rotation effect.
Claims (10)
1. a cementing plug anti-rotation device is characterized in that comprising rubber plug body, plug core, anti-rotation core, anti-rotation core print seat and float collar; The outside at the plug core is fixed with rubber plug body, be fixed with the anti-rotation core of the taper type that is wide at the top and narrow at the bottom in the bottom of plug core, even from top to bottom fixed interval has bevel gear type boss in the outside of anti-rotation core, the installation cavity that is taper type wide at the top and narrow at the bottom is arranged on the top of anti-rotation core print seat, on the sidewall of installation cavity, evenly be intervally distributed with mesh groove, bevel gear type boss is engaged in the mesh groove, the anti-rotation core print seat is fixedly mounted in the middle part of float collar, and at least one and the anti-rotation core beveled cone with tapering is arranged in the outside of rubber plug body.
2. cementing plug anti-rotation device according to claim 1, the cross section top that it is characterized in that bevel gear type boss becomes smooth arc, the linear corner angle of cross section root of bevel gear type boss, the linear corner angle in the top of mesh groove, the root of mesh groove becomes smooth arc.
3. cementing plug anti-rotation device according to claim 1 and 2 is characterized in that there is axially extending bore at the middle part of anti-rotation core.
4. cementing plug anti-rotation device according to claim 1 and 2 is characterized in that float collar comprises float collar body, valve head, valve seat, valve rod, compression spring and holder; The valve seat of external diameter less than float collar body internal diameter arranged in the float collar body, valve seat comprises upper binding head, seal spool body and lower union joint, upper binding head, seal spool body and lower union joint are fixed together from top to bottom, the outside, upper end of upper binding head is fixed together by screw thread with the inboard, lower end of anti-rotation core print seat, the seal spool body is up-narrow and down-wide cone table, the outside of holder is fixedly mounted in the lower end of lower union joint by screw thread, there is installing hole at middle part at holder, the upper end of valve rod is fixed with valve head, the lower end of valve rod is positioned at installing hole, be equipped with in the valve rod outside and can make valve head withstand on compression spring on the seal spool body medial surface, the upper end of compression spring withstands on the bottom surface of valve head, the lower end of compression spring is fixed on the holder, on the mount pad in the compression spring outside, the cement paste discharge orifice is arranged, at the float collar body, valve seat, form installation cavity between the beveled cone of anti-rotation core print seat and rubber plug body bottommost, in installation cavity, be installed with cement stone.
5. cementing plug anti-rotation device according to claim 3 is characterized in that float collar comprises float collar body, valve head, valve seat, valve rod, compression spring and holder; The valve seat of external diameter less than float collar body internal diameter arranged in the float collar body, valve seat comprises upper binding head, seal spool body and lower union joint, upper binding head, seal spool body and lower union joint are fixed together from top to bottom, the outside, upper end of upper binding head is fixed together by screw thread with the inboard, lower end of anti-rotation core print seat, the seal spool body is up-narrow and down-wide cone table, the outside of holder is fixedly mounted in the lower end of lower union joint by screw thread, there is installing hole at middle part at holder, the upper end of valve rod is fixed with valve head, the lower end of valve rod is positioned at installing hole, be equipped with in the valve rod outside and can make valve head withstand on compression spring on the seal spool body medial surface, the upper end of compression spring withstands on the bottom surface of valve head, the lower end of compression spring is fixed on the holder, on the mount pad in the compression spring outside, the cement paste discharge orifice is arranged, at the float collar body, valve seat, form installation cavity between the beveled cone of anti-rotation core print seat and rubber plug body bottommost, in installation cavity, be installed with cement stone.
6. cementing plug anti-rotation device according to claim 1 and 2, mounting groove is arranged at the bottom that it is characterized in that the plug core, the anti-rotation core comprises installation head and is the anti-rotary head of taper type wide at the top and narrow at the bottom, the bottom of installation head and the top of anti-rotary head are fixed together, the external diameter of installation head is less than anti-rotation crown portion external diameter, installation head is fixedly mounted in the mounting groove by screw thread, and even from top to bottom fixed interval has bevel gear type boss in the outside of anti-rotary head, and there is axially extending bore at the middle part of installation head and anti-rotary head.
7. cementing plug anti-rotation device according to claim 3, mounting groove is arranged at the bottom that it is characterized in that the plug core, the anti-rotation core comprises installation head and is the anti-rotary head of taper type wide at the top and narrow at the bottom, the bottom of installation head and the top of anti-rotary head are fixed together, the external diameter of installation head is less than anti-rotation crown portion external diameter, installation head is fixedly mounted in the mounting groove by screw thread, and even from top to bottom fixed interval has bevel gear type boss in the outside of anti-rotary head, and there is axially extending bore at the middle part of installation head and anti-rotary head.
8. cementing plug anti-rotation device according to claim 5, mounting groove is arranged at the bottom that it is characterized in that the plug core, the anti-rotation core comprises installation head and is the anti-rotary head of taper type wide at the top and narrow at the bottom, the bottom of installation head and the top of anti-rotary head are fixed together, the external diameter of installation head is less than anti-rotation crown portion external diameter, installation head is fixedly mounted in the mounting groove by screw thread, and even from top to bottom fixed interval has bevel gear type boss in the outside of anti-rotary head, and there is axially extending bore at the middle part of installation head and anti-rotary head.
9. cementing plug anti-rotation device according to claim 1 and 2 is characterized in that bevel gear type boss is 9.
10. cementing plug anti-rotation device according to claim 8 is characterized in that bevel gear type boss is 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206045107U CN201851077U (en) | 2010-11-13 | 2010-11-13 | Anti-rotation device of well cementing rubber stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206045107U CN201851077U (en) | 2010-11-13 | 2010-11-13 | Anti-rotation device of well cementing rubber stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851077U true CN201851077U (en) | 2011-06-01 |
Family
ID=44093476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206045107U Expired - Lifetime CN201851077U (en) | 2010-11-13 | 2010-11-13 | Anti-rotation device of well cementing rubber stopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851077U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979822A (en) * | 2010-11-13 | 2011-02-23 | 中国石油集团西部钻探工程有限公司 | Anti-rotation device for well cementing glue plug |
-
2010
- 2010-11-13 CN CN2010206045107U patent/CN201851077U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979822A (en) * | 2010-11-13 | 2011-02-23 | 中国石油集团西部钻探工程有限公司 | Anti-rotation device for well cementing glue plug |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203018239U (en) | Novel slurry producing nozzle | |
| CN107227938A (en) | Well rotary guide shoe assembly can be repaired | |
| CN201851077U (en) | Anti-rotation device of well cementing rubber stopper | |
| CN101979822A (en) | Anti-rotation device for well cementing glue plug | |
| CN202690023U (en) | Inside seal type flow divider | |
| CN205172504U (en) | Oil gas well well head anti -theft device | |
| CN203097775U (en) | Hydraulic anchor | |
| CN200975231Y (en) | Rotation preventing cementing plug | |
| CN202441324U (en) | Composite rubber plug of oil well | |
| CN102373898B (en) | Well cementing head | |
| CN201963250U (en) | Hydraulic graded cementing device capable of closing holes in dual manner | |
| CN106837238B (en) | A kind of self-locking rubber plug | |
| CN202249928U (en) | Cementing cement head | |
| CN204299519U (en) | Surface pipe anchoring device | |
| CN201598987U (en) | Positive constant-pressure blocking casing guide shoe | |
| CN204782834U (en) | Novel continuous outside of tubes slips connector | |
| CN204782880U (en) | Probing of geology rock core is cored with striking heart ware | |
| CN105350941A (en) | Push rod type indicating device and rubber plug falling indication cementing head | |
| CN203023042U (en) | Anti-wear plunger for mud pump | |
| CN204571913U (en) | Automatic grouting formula float collar | |
| CN206386095U (en) | Self-lubricating split seal box | |
| CN201851014U (en) | Mine roller bit with spray nozzle | |
| CN201496030U (en) | Automatic hole-closing stage collar assembly device | |
| CN202660070U (en) | Wired laterally-inclined cable guiding device for direction well | |
| CN202100209U (en) | Drill stem conversion connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110601 |