CN204186347U - Convenient-opening formula instruction cementing head - Google Patents
Convenient-opening formula instruction cementing head Download PDFInfo
- Publication number
- CN204186347U CN204186347U CN201420595612.5U CN201420595612U CN204186347U CN 204186347 U CN204186347 U CN 204186347U CN 201420595612 U CN201420595612 U CN 201420595612U CN 204186347 U CN204186347 U CN 204186347U
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- China
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- cementing head
- backing pin
- head body
- slip casting
- casting passage
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Abstract
The utility model relates to cementing head technical field, is a kind of convenient-opening formula instruction cementing head; It comprises cementing head body, pressure cap, for slurry liquid inlet joint, cement paste liquid inlet joint, rotates backing pin, backing pin control valve assembly and indicating device; Have slip casting passage in the inside of cementing head body, being installed with in the sealing of the upper end of cementing head body can by the pressure cap of slip casting passage plugging; There is replacing of being connected with slip casting passage to starch liquid inlet joint on the top of cementing head body.The utility model reasonable and compact in structure, easy to use; Rotate backing pin fast opening and reset while, by the falling condition of whereabouts reset pointer effect plug, easy to operate, time saving and energy saving, precision is high; When rotation backing pin is after being flipped open, is placed in lower holding tank, enables plug descending smoothly, preventing from causing scraping because opening not in place, safe and reliable; The generation of effective minimizing construction safety and cementing quality accident, more safe and convenient.
Description
Technical field
the utility model relates to cementing head technical field, is a kind of convenient-opening formula instruction cementing head.
Background technology
cementing head is indispensable rig tool in cementing operation, plays very important effect in well cementing process.At present, cementing head conventional both at home and abroad all adopts the rotary backing pin structure of screw rod, and open backing pin needs to rotate 10-13 circle when cementing operation, during operating cost, and easily following phenomenon occurs: produce backing pin and open not in place, causes plug cannot be normally descending; Backing pin do not open put in place time because of differential pressure action plug simultaneously descending, cause plug sealing ring to be damaged; Can not judge plug whether normal descend, or descending indicating device easily lost efficacy, the whereabouts situation of judgement plug that cannot be correct; And traditional cementing head body internal diameter is unified size, difficulty during dress plug, because vacuum produces attraction easily press-bending backing pin or open backing pin difficulty in Process of Cementing, usually all well cementation major accident can be brought because of cementing head reasons in structure or due to the maloperation of the loaded down with trivial details generation of traditional handicraft.
Summary of the invention
the utility model provides a kind of convenient-opening formula instruction cementing head, overcome the deficiency of above-mentioned prior art, it effectively can solve screw rod rotary cement first speed pin and open not in place, that plug sealing ring easy damaged, descending indicating device easily lost efficacy and backing pin unlatching is difficult problem.
the technical solution of the utility model is realized by following measures: a kind of convenient-opening formula instruction cementing head, comprises cementing head body, pressure cap, for slurry liquid inlet joint, cement paste liquid inlet joint, rotates backing pin, backing pin control valve assembly and indicating device; Have slip casting passage in the inside of cementing head body, being installed with in the sealing of the upper end of cementing head body can by the pressure cap of slip casting passage plugging; There is replacing of being connected with slip casting passage to starch liquid inlet joint on the top of cementing head body; The cement paste liquid inlet joint be connected with slip casting passage is had in the bottom of cementing head body; Being provided with can blocking the descending rotation backing pin of plug in the slip casting passage between slurry liquid inlet joint and cement paste liquid inlet joint, hinged groove is overturn on slip casting vias inner walls on the left of rotation backing pin has, rotate backing pin left end and be fixed with bearing pin, hinge is arranged in upset hinged groove; Rotating the backing pin control valve assembly cementing head body on the right side of backing pin being provided with and can making rotation backing pin right-hand member Horizontal limiting or remove spacing realization upset; Upper upset hinged groove lower end slip casting passage inwall on have and rotate the lower holding tank of backing pin for falling behind to hold under rotating backing pin upset; The front end of bearing pin is passed cementing head body and is installed with the indicating device that can indicate and rotate backing pin and open and close.
here is the further optimization and/or improvements to above-mentioned utility model technical scheme:
above-mentioned indicating device can comprise whereabouts reset pointer and identify with the gear of " open and close "; The front end of bearing pin is passed cementing head body and is installed with whereabouts reset pointer; The front end face of the cementing head body of whereabouts reset pointer surrounding there is instruction rotate the mark of " open and close " of backing pin upset.
above-mentioned backing pin control valve assembly can comprise spool, fixing end cap and driving shaft; The control valve installing hole communicated with slip casting passage is had with the cementing head body rotated on the right side of backing pin, the spool that can rotate is installed in control valve installing hole right part, have protruding arc-shaped limit platform in the lower end, left side of spool left and be positioned at control valve installing hole, the right-hand member rotating backing pin rides on the cancave cambered surface of arc-shaped limit platform upper end; In the middle part of the right-hand member of spool, be installed with driving shaft, driving shaft is positioned at outside the right part of cementing head body; Be installed with spool can be moved horizontally spacing fixing end cap at control valve installing hole right-hand member, fixing end cap is sleeved on driving shaft.
driving shaft on the right side of above-mentioned fixing end cap can be provided with driving shaft rotary stopper and the unlatching handwheel of energy transmitting torque; Driving shaft is cross section is polygonal rotating shaft, and there is the polygon installing hole corresponding with driving shaft cross section the inside of opening handwheel is set with on the driving shaft.
the right side of above-mentioned fixing end cap can be evenly distributed in two or more and hole count is the limit bolt of even numbers, the unlatching handwheel corresponding with limit bolt be distributed with and can be installed in jack on limit bolt by opening handwheel.
above-mentioned fixing end cap can be transparent cover, and propeller shaft sleeve is contained in the central bore of fixing end cap; Central bore outside driving shaft is installed with the magnet ring that unlatching handwheel can be adsorbed on the right side of fixing end cap.
above-mentioned spool outer end with can sealing ring together be installed with at least between left and right between control valve installing hole; Sealing ring is installed with between cementing head body upper end and pressure cap.
above-mentioned slip casting passage can be variable diameter passage wide at the top and narrow at the bottom, and the internal diameter rotating the slip casting passage of backing pin upper end is greater than plug external diameter, and the internal diameter rotating the slip casting passage of backing pin lower end is less than plug external diameter; Or/and can there be conical external screw thread wide at the top and narrow at the bottom the lower end of cementing head body.
the utility model reasonable and compact in structure, easy to use; Rotate backing pin fast opening and reset while, by the falling condition of whereabouts reset pointer effect plug, easy to operate, time saving and energy saving, precision is high; When rotation backing pin is after being flipped open, is placed in lower holding tank, enables plug descending smoothly, preventing from causing scraping because opening not in place, safe and reliable; The generation of effective minimizing construction safety and cementing quality accident, more safe and convenient.
Accompanying drawing explanation
accompanying drawing 1 is the main TV structure schematic diagram of the utility model most preferred embodiment.
accompanying drawing 2 is that the master of the utility model most preferred embodiment looks sectional structure schematic diagram.
accompanying drawing 3 is that the A-A of accompanying drawing 2 is to sectional view.
coding in accompanying drawing is respectively: 1 is cementing head body, and 2 is slip casting passage, and 3 is pressure cap, and 4 for replacing slurry liquid inlet joint, 5 is cement paste liquid inlet joint, and 6 for rotating backing pin, and 7 is upper upset hinged groove, 8 is bearing pin, and 9 is whereabouts reset pointer, and 10 is lower holding tank, 11 is plug, and 12 is spool, and 13 is arc-shaped limit platform, 14 is fixing end cap, and 15 is driving shaft, and 16 for opening handwheel, 17 is limit bolt, and 18 is sealing ring, and 19 is magnet ring.
Detailed description of the invention
the utility model by the restriction of following embodiment, can not 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 all be described according to the Butut mode of Figure of description 1, as: the position relationship of upper and lower, left and right etc. determines according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in accompanying drawing 1,2, this convenient-opening formula instruction cementing head comprises cementing head body 1, pressure cap 3, for slurry liquid inlet joint 4, cement paste liquid inlet joint 5, rotates backing pin 6, backing pin control valve assembly and indicating device; Have slip casting passage 2 in the inside of cementing head body 1, being installed with in the sealing of the upper end of cementing head body 1 can by the pressure cap 3 of slip casting passage 2 shutoff; There is replacing of being connected with slip casting passage 2 to starch liquid inlet joint 4 on the top of cementing head body 1; The cement paste liquid inlet joint 5 be connected with slip casting passage 2 is had in the bottom of cementing head body 1; Being provided with can blocking the descending rotation backing pin 6 of plug 11 in the slip casting passage 2 between slurry liquid inlet joint 4 and cement paste liquid inlet joint 5, hinged groove 7 is overturn on slip casting passage 2 inwall on the left of rotation backing pin 6 has, rotate backing pin 6 left end and be fixed with bearing pin 8, bearing pin 8 is hingedly mounted in upset hinged groove 7; Rotating the backing pin control valve assembly cementing head body 1 on the right side of backing pin 6 being provided with and can making rotation backing pin 6 right-hand member Horizontal limiting or remove spacing realization upset; Upper upset hinged groove 7 lower end slip casting passage 2 inwall on have and rotate the lower holding tank 10 of backing pin 6 for rotating to fall behind to hold under backing pin 6 overturns; The front end of bearing pin 8 is passed cementing head body 1 and is installed with the indicating device that can indicate and rotate backing pin 6 and open and close.By controlling backing pin control valve assembly, remove spacing, by the thrust rotating backing pin 6 self gravitation and plug 11, upset from top to bottom falls in lower holding tank 10; Thus the shutoff removed plug 11, release plug 11; Avoid occurring to put in place because backing pin is not opened and wear and tear with descending plug 11, plug 11 can be released smoothly, safe and reliable; Indicating device accurately can indicate the rollover states rotating backing pin 6, thus is convenient to the whereabouts situation of the correct judgement plug 11 of people, and precision is high.
according to actual needs, above-mentioned convenient-opening formula instruction cementing head can be made further optimization and/or improvements:
as shown in accompanying drawing 2,3, indicating device comprises whereabouts reset pointer 9 and identifies with the gear of " open and close "; The front end of bearing pin 8 is passed cementing head body 1 and is installed with whereabouts reset pointer 9; The front end face of the cementing head body 1 of whereabouts reset pointer 9 surrounding there is instruction rotate the mark of " open and close " that backing pin 6 overturns.The front end face of cementing head body 1 arranges "ON" and "Off" two gears respectively, and when rotating backing pin 6 and being flipped open, bearing pin 8 rotates with rotation backing pin 6 and drives whereabouts reset pointer 9 from "Off" gear conversion "ON" gear; When rotating backing pin 6 and resetting, bearing pin 8 rotates with rotation backing pin 6 and drives whereabouts reset pointer 9 from "ON" gear conversion "Off" gear, realizes transforming gear; Make the cement operations personnel of well head when manual operation backing pin control valve assembly, rotation backing pin 6 in slip casting passage 2 can be understood in time and whether be flipped open, thus the whereabouts situation of correct judgement plug 11.
as shown in accompanying drawing 2,3, backing pin control valve assembly comprises spool 12, fixing end cap 14 and driving shaft 15; The control valve installing hole communicated with slip casting passage 2 is had with the cementing head body 1 rotated on the right side of backing pin 6, the spool 12 that can rotate is installed in control valve installing hole right part, have protruding arc-shaped limit platform 13 in the lower end, left side of spool 12 left and be positioned at control valve installing hole, the right-hand member rotating backing pin 6 rides on the cancave cambered surface of arc-shaped limit platform 13 upper end; In the middle part of the right-hand member of spool 12, be installed with driving shaft 15, driving shaft 15 is positioned at outside the right part of cementing head body 1; Be installed with spool 12 can be moved horizontally spacing fixing end cap 14 at control valve installing hole right-hand member, fixing end cap 14 is sleeved on driving shaft 15.Manually rotating driveshaft 15, makes spool 12 rotate in control valve installing hole, and drives arc-shaped limit platform 13 to rotate up with spool 12, when arc-shaped limit platform 13 being threaded to disengaging and rotating backing pin 6, rotate backing pin 6 to overturn from top to bottom around bearing pin 8, remove shutoff, release plug 11; When needing to reset to the shutoff of plug 11, bearing pin 8 only manually need be rotated counterclockwise to rotation backing pin 6 level, then hand rotation driving shaft 15, make arc-shaped limit platform 13 be rotated down reset in the other direction, realize arc-shaped limit platform 13 to the locking of rotation backing pin 6 Horizontal limiting; Easy to operate, time saving and energy saving.
as shown in accompanying drawing 2,3, the driving shaft 15 on the right side of fixing end cap 14 is provided with driving shaft 15 rotary stopper and the unlatching handwheel 16 of energy transmitting torque; Driving shaft 15 is polygonal rotating shaft for cross section, and opening the inside of handwheel 16 has the polygon installing hole corresponding with driving shaft 15 cross section and be sleeved on driving shaft 15.Driving shaft 15 and opening can to adopt between handwheel 16 other can the connected mode of transmitting torque, is convenient to artificial manual rotation, handled easily.
as required, the right side of fixing end cap 14 is evenly distributed in two or more and hole count is the limit bolt 17 of even numbers, the unlatching handwheel 16 corresponding with limit bolt 1 is distributed with and can be installed in jack on limit bolt 1 by opening handwheel 16.For ease of locating accurately and operating, the unlatching anglec of rotation that handwheel 16 is opened in setting is 180 °; When needs release plug 11, operating personnel's manual rotation 180 ° release rotates backing pin 6, rotates backing pin 6 and overturns; When needing to reset to the shutoff of plug 11, operating personnel to spool 12 be no matter dextrorotation 180 ° or derotation 180 ° arc-shaped limit platform 13 can both be made to get back to former setting spacing position is overturn to rotation backing pin, be convenient to human users, simple and convenient; Limit bolt 17 can lock the position of rotation opening handwheel 16, thus controls unlatching and the reset of spool 12; Prevent because spool 12 arbitrarily rotates, the situation causing arc-shaped limit platform 13 to reset occurs, and improves the accuracy and reliability that spool 12 is opened and resetted.
as shown in accompanying drawing 2,3, fixing end cap 14 is transparent cover, and driving shaft 15 is sleeved in the central bore of fixing end cap 14; Central bore outside driving shaft 15 is installed with the magnet ring 19 that unlatching handwheel 16 can be adsorbed on the right side of fixing end cap 14.Magnet ring 19 can by unlatching handwheel 16 automatic absorbing spacing on the limit bolt 17 of fixing end cap 14 after artificial manual rotation, and the position of rotation of handwheel 16 is opened in locking; More convenient operation is reliable.
as required, slip casting passage 2 is variable diameter passage wide at the top and narrow at the bottom, and the internal diameter rotating the slip casting passage 2 of backing pin 6 upper end is greater than plug 11 external diameter, and the internal diameter rotating the slip casting passage 2 of backing pin 6 lower end is less than plug 11 external diameter.So both easily filled plug 11, and can balance again the pressure differential that in cement injection process, plug about 11 space is formed, protection rotates backing pin 6 effectively.
as shown in accompanying drawing 2,3, spool 12 outer end and sealing ring 18 together be installed with at least between left and right between control valve installing hole; Sealing ring 18 is installed with between cementing head body 1 upper end and pressure cap 3.Sealing ring 18 plays the effect increasing contact surface sealing.
as shown in accompanying drawing 1,2, there is conical external screw thread wide at the top and narrow at the bottom in the lower end of cementing head body 1.
above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
the use procedure of the utility model most preferred embodiment:
first, the utility model is loaded on the well head place of well cementation, will be connected by carrier pipe with for starching cementing truck for slurry liquid inlet joint 4, cement paste liquid inlet joint 5 is connected by carrier pipe with cement slurry cementing car, regulate rotating shaft to cause to fall and break while reset pointer 9 indicates "Off" gear, rotarily open handwheel 16 and make arc-shaped limit platform 13 backspin to rotation backing pin 6 Horizontal limiting, well cementing operation starts, and throws plug 11 on rotation backing pin 6, first in well, inject cement paste by cement paste liquid inlet joint 5, after treating that cement paste injects, pull to the right and open handwheel 16, it is made to depart from limit bolt 17, again unlatching handwheel 16 is rotated 180 °, now opening handwheel 16 drives arc-shaped limit platform 13 to rotate by spool 12, arc-shaped limit platform 13 is departed from and rotates backing pin 6, rotating backing pin 6 upset falls in lower holding tank 10, while bearing pin 8 overturns with rotation backing pin 6, whereabouts reset pointer 9 is driven to turn to "ON" gear from "Off" gear, plug 11 rotates backing pin 6 shutoff because removing, along with injecting for slurries in well, plug 11 is descending, carry out for slurry operation, open handwheel 16 to be adsorbed on left on fixing end cap 14 by magnet ring 19 after rotation 180 °, and spacing by limit bolt 17, when rotation backing pin 6 resets, only manually need be rotated counterclockwise bearing pin 8 to rotation backing pin 6 level, more manually will open handwheel 16 dextrorotation or derotation 180 °, make arc-shaped limit platform 13 be rotated down reset, arc-shaped limit platform 13 is locked rotation backing pin 6 Horizontal limiting.
Claims (9)
1. a convenient-opening formula instruction cementing head, is characterized in that comprising cementing head body, pressure cap, for slurry liquid inlet joint, cement paste liquid inlet joint, rotating backing pin, backing pin control valve assembly and indicating device; Have slip casting passage in the inside of cementing head body, being installed with in the sealing of the upper end of cementing head body can by the pressure cap of slip casting passage plugging; There is replacing of being connected with slip casting passage to starch liquid inlet joint on the top of cementing head body; The cement paste liquid inlet joint be connected with slip casting passage is had in the bottom of cementing head body; Being provided with can blocking the descending rotation backing pin of plug in the slip casting passage between slurry liquid inlet joint and cement paste liquid inlet joint, hinged groove is overturn on slip casting vias inner walls on the left of rotation backing pin has, rotate backing pin left end and be fixed with bearing pin, hinge is arranged in upset hinged groove; Rotating the backing pin control valve assembly cementing head body on the right side of backing pin being provided with and can making rotation backing pin right-hand member Horizontal limiting or remove spacing realization upset; Upper upset hinged groove lower end slip casting passage inwall on have and rotate the lower holding tank of backing pin for falling behind to hold under rotating backing pin upset; The front end of bearing pin is passed cementing head body and is installed with the indicating device that can indicate and rotate backing pin and open and close.
2. convenient-opening formula instruction cementing head according to claim 1, is characterized in that indicating device comprises whereabouts reset pointer and identifies with the gear of " open and close "; The front end of bearing pin is passed cementing head body and is installed with whereabouts reset pointer; The front end face of the cementing head body of whereabouts reset pointer surrounding there is instruction rotate the mark of " open and close " of backing pin upset.
3. convenient-opening formula instruction cementing head according to claim 2, is characterized in that backing pin control valve assembly comprises spool, fixing end cap and driving shaft; The control valve installing hole communicated with slip casting passage is had with the cementing head body rotated on the right side of backing pin, the spool that can rotate is installed in control valve installing hole right part, have protruding arc-shaped limit platform in the lower end, left side of spool left and be positioned at control valve installing hole, the right-hand member rotating backing pin rides on the cancave cambered surface of arc-shaped limit platform upper end; In the middle part of the right-hand member of spool, be installed with driving shaft, driving shaft is positioned at outside the right part of cementing head body; Be installed with spool can be moved horizontally spacing fixing end cap at control valve installing hole right-hand member, fixing end cap is sleeved on driving shaft.
4. convenient-opening formula instruction cementing head according to claim 3, is characterized in that the driving shaft on the right side of fixing end cap is provided with driving shaft rotary stopper and the unlatching handwheel of energy transmitting torque; Driving shaft is cross section is polygonal rotating shaft, and there is the polygon installing hole corresponding with driving shaft cross section the inside of opening handwheel is set with on the driving shaft.
5. convenient-opening formula instruction cementing head according to claim 4, the right side that it is characterized in that fixing end cap is evenly distributed in two or more and hole count is the limit bolt of even numbers, the unlatching handwheel corresponding with limit bolt is distributed with and can be installed in jack on limit bolt by opening handwheel.
6. convenient-opening formula instruction cementing head according to claim 5, it is characterized in that fixing end cap is transparent cover, propeller shaft sleeve is contained in the central bore of fixing end cap; Central bore outside driving shaft is installed with the magnet ring that unlatching handwheel can be adsorbed on the right side of fixing end cap.
7. the convenient-opening formula instruction cementing head according to claim 3 or 4 or 5 or 6, is characterized in that above-mentioned spool outer end and sealing ring together be installed with at least between left and right between control valve installing hole; Sealing ring is installed with between cementing head body upper end and pressure cap.
8. the convenient-opening formula instruction cementing head according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that slip casting passage is variable diameter passage wide at the top and narrow at the bottom, the internal diameter rotating the slip casting passage of backing pin upper end is greater than plug external diameter, and the internal diameter rotating the slip casting passage of backing pin lower end is less than plug external diameter; Or/and can there be conical external screw thread wide at the top and narrow at the bottom the lower end of cementing head body.
9. convenient-opening formula instruction cementing head according to claim 7, it is characterized in that slip casting passage is variable diameter passage wide at the top and narrow at the bottom, the internal diameter rotating the slip casting passage of backing pin upper end is greater than plug external diameter, and the internal diameter rotating the slip casting passage of backing pin lower end is less than plug external diameter; Or/and can there be conical external screw thread wide at the top and narrow at the bottom the lower end of cementing head body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595612.5U CN204186347U (en) | 2014-10-15 | 2014-10-15 | Convenient-opening formula instruction cementing head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420595612.5U CN204186347U (en) | 2014-10-15 | 2014-10-15 | Convenient-opening formula instruction cementing head |
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| CN204186347U true CN204186347U (en) | 2015-03-04 |
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| CN201420595612.5U Active CN204186347U (en) | 2014-10-15 | 2014-10-15 | Convenient-opening formula instruction cementing head |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295265A (en) * | 2014-10-15 | 2015-01-21 | 中国石油集团西部钻探工程有限公司 | Easy-opening cementing head with indication function |
| CN105298439A (en) * | 2015-10-23 | 2016-02-03 | 宝鸡石油机械有限责任公司 | Top driving cement head |
| CN105927184A (en) * | 2016-05-05 | 2016-09-07 | 中国石油集团渤海钻探工程有限公司 | Gravity open type cement head |
| CN107503710A (en) * | 2017-10-11 | 2017-12-22 | 中国海洋石油总公司 | A kind of cementing cement head column assemble method |
-
2014
- 2014-10-15 CN CN201420595612.5U patent/CN204186347U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295265A (en) * | 2014-10-15 | 2015-01-21 | 中国石油集团西部钻探工程有限公司 | Easy-opening cementing head with indication function |
| CN105298439A (en) * | 2015-10-23 | 2016-02-03 | 宝鸡石油机械有限责任公司 | Top driving cement head |
| CN105298439B (en) * | 2015-10-23 | 2018-04-27 | 宝鸡石油机械有限责任公司 | A kind of top drive cementing head |
| CN105927184A (en) * | 2016-05-05 | 2016-09-07 | 中国石油集团渤海钻探工程有限公司 | Gravity open type cement head |
| CN107503710A (en) * | 2017-10-11 | 2017-12-22 | 中国海洋石油总公司 | A kind of cementing cement head column assemble method |
| CN107503710B (en) * | 2017-10-11 | 2020-05-19 | 中国海洋石油集团有限公司 | Method for assembling vertical column of well cementation cementing head |
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