CN102373898B - Well cementing head - Google Patents
Well cementing head Download PDFInfo
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- CN102373898B CN102373898B CN201110331726.XA CN201110331726A CN102373898B CN 102373898 B CN102373898 B CN 102373898B CN 201110331726 A CN201110331726 A CN 201110331726A CN 102373898 B CN102373898 B CN 102373898B
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Abstract
The invention relates to the technical field of petroleum gas well cementation and completion tools, and discloses a well cementing head, which comprises a body tube, an upper joint, a lower joint, a packing rubber plug, a left stop pin shell, a right stop pin shell, stop pin devices and a rubber plug indicating device, wherein both sides of the middle part of the body tube are provided with a left tube hole and a right tube hole respectively; the left stop pin shell and the right stop pin shell are fixedly arranged on the body tube on the outer sides of the left tube hole and the right tube hole respectively; and the stop pin devices which can be opened for moving the packing rubber plug downwards are arranged in the left stop pin shell and the right stop pin shell respectively. The well cementing head has a reasonable and compact structure, and is convenient to use; the left and right stop pin devices can be conveniently and reliably opened through a left rotating rod and a right rotating rod, the descending of the packing rubber plug can be reliably judged through the rubber plug indicating device, and well cementation accidents are effectively avoided; and the well cementing head has the characteristics of simple structure, safety, reliability, low cost, convenience for maintaining and reusability.
Description
Technical field
the present invention relates to the solid completion tool technical field of petroleum and natural gas well, is a kind of cementing cement head.
Background technology
well cementation is generally realized with cementing head in oil field both at home and abroad at present, if when reinforcing oil well operation, backing pin cannot be opened, plug is not depressed, can cause well cementation cannot carry out smoothly or sleeve pipe in stay cement plug accident, particularly when the well cementing operation of oil reservoir completion, once stay cement plug accident in generation sleeve pipe, to cause oil well normally to go into operation, and later stage workover cost costliness.Existing cementing head is generally straight-bar pin-blocking type, column indicator application to some extent in straight-bar backing pin cementing head under plug, but because complex structure, price expense are too high or because of the not good large-scale promotion application of failing of result of use, so while using at present cementing head to replace slurry, usually cannot judge whether plug is depressed, once plug is not yet in effect descending, will cause very serious well cementation accident.Therefore, existing cementing cement head has the following disadvantages in actual use: backing pin opens that difficulty, plug are descending cannot judge, exist potential safety hazard.
Summary of the invention
the invention provides a kind of cementing cement head, overcome the deficiency of above-mentioned prior art, its backing pin that can effectively solve existing cementing cement head existence is opened difficulty, the descending problem that cannot judge, have potential safety hazard of plug.
technical scheme of the present invention realizes by following measures: a kind of cementing cement head, comprises body tube, top connection, lower contact, packing plug, left backing pin case, right backing pin case, backing pin device and plug indicating device, the top of body tube is fixedly connected with top connection, the bottom of body tube is fixedly connected with lower contact, there are respectively left pore and right pore in the left and right sides, body tube middle part, in the body tube in left pore and right pore outside, be fixed with respectively left backing pin case and right backing pin case, in left backing pin case and right backing pin case, be separately installed with the backing pin device that can open and make packing plug to move down, packing plug is sleeved in the tube chamber of body tube, the lower end seat of packing plug is on backing pin device, be provided with in left backing pin case bottom and can show that whether packing plug is by the plug indicating device of backing pin device.
the further optimization and/or improvements to foregoing invention technical scheme below:
above-mentioned backing pin device can comprise left-handed pole socket, left-handed bull stick, left-handed bar ear seat, left ear base upper plate, left ear base lower plate, left plug backing pin, left jointed shaft, left stop pin, dextrorotation pole socket, dextrorotation bull stick, dextrorotation bar ear seat, right ear base upper plate, right ear base lower plate, right plug backing pin, right jointed shaft and right stop pin, there are respectively left case chamber and right case chamber in the inside of left backing pin case and right backing pin case, left-handed bar hole and the dextrorotation bar hole of axis along continuous straight runs arranged respectively at the top of left backing pin case and right backing pin case, the right-hand member in left-handed bar hole is connected with the tube chamber of body tube by left case chamber and left pore, and the left end in dextrorotation bar hole is connected with the tube chamber of body tube by right case chamber and right pore, on the left backing pin case of corresponding left-handed bar hole site, be bolted left-handed pole socket is installed, on left-handed pole socket, there is the left-handed block hole coaxial with left-handed bar hole, the right-hand member of left-handed block hole is connected with left-handed bar hole left end, on the left part inwall of left-handed block hole, there is left-handed seat internal thread, there is external screw thread at the middle part of left-handed bull stick is arranged on left-handed pole socket inside by external screw thread and left-handed seat internal thread, the left end of left-handed bull stick extend out to left-handed pole socket left, the right-hand member of left-handed bull stick is extended inside, left case chamber and is fixed with left-handed bar ear seat by left-handed bar hole, the upper and lower of left-handed bar ear seat is fixed with respectively left ear base upper plate and left ear base lower plate, there are respectively upper left fraising and lower-left fraising in the middle part of left ear base upper plate and left ear base lower plate, the left end of left plug backing pin is fixed with a left side hinged otic placode of middle part with left hinge axis hole, left hinged otic placode is arranged between left ear base upper plate and left ear base lower plate by left jointed shaft, left jointed shaft comprises the left hinge head on top and the left hinge bar of bottom, the lower surface of left hinge head is pressed on the upper surface of left ear base upper plate, left hinge bar is from top to bottom sleeved on upper left fraising successively, in left hinge axis hole and lower-left fraising, there is left axostylus axostyle lockhole left hinge bar bottom is installed with left stop pin, on the right backing pin case of corresponding dextrorotation bar hole site, be bolted dextrorotation pole socket is installed, on dextrorotation pole socket, there is the dextrorotation block hole coaxial with dextrorotation bar hole, the left end of dextrorotation block hole is connected with dextrorotation bar hole right-hand member, on the right part inwall of dextrorotation block hole, there is dextrorotation seat internal thread, there is external screw thread at the middle part of dextrorotation bull stick is arranged on dextrorotation pole socket inside by external screw thread and dextrorotation seat internal thread, it is right-hand that the right-hand member of dextrorotation bull stick extend out to dextrorotation pole socket, the left end of dextrorotation bull stick is extended inside, right case chamber and is fixed with dextrorotation bar ear seat by dextrorotation bar hole, the upper and lower of dextrorotation bar ear seat is fixed with respectively right ear base upper plate and right ear base lower plate, there are respectively upper right fraising and bottom right fraising in the middle part of right ear base upper plate and right ear base lower plate, the right-hand member of right plug backing pin is fixed with the right side hinged otic placode of middle part with right hinge axis hole, right hinged otic placode is arranged between right ear base upper plate and right ear base lower plate by right jointed shaft, right jointed shaft comprises the right hinge head on top and the right hinge bar of bottom, the lower surface of right hinge head is pressed on the upper surface of right ear base upper plate, right hinge bar is from top to bottom sleeved on upper right fraising successively, in right hinge axis hole and bottom right fraising, there is right axostylus axostyle lockhole right hinge bar bottom is installed with right stop pin, the right-hand member of left plug backing pin just the left end to right plug backing pin and and the left end of right plug backing pin between form backing pin gap.
above-mentioned plug indicating device can comprise indicator seat cylinder, indicator door, indication push rod and back-moving spring, on the left backing pin case of left-handed pole socket below, have indicator installation screw and be installed with indicator seat cylinder, there is indication seat chamber indicator seat cylinder inside, on the left part inwall in indication seat chamber, has a chamber internal thread, has ring platform in indication seat on the right part inwall in indication seat chamber, there is indicating arm outer shroud platform in the outside, middle part of indication push rod, the right side of indicating arm outer shroud platform is pressed on the left side of ring platform in indication seat, there is screw thread in the outside of indicator door is fixedly mounted on indication seat chamber left part by seat chamber internal thread, there is indicator cover hole the inside of indicator door, indication push rod left part is sleeved in indicator cover hole and can moves left and right, the right-hand member of indication push rod be positioned at left plug backing pin under and the left plug backing pin that can be screwed off promote to move to left, on indication push rod between indicator door and indicating arm outer shroud platform, be set with back-moving spring, the left end of back-moving spring holds out against on the right side of indicator door, the right-hand member of back-moving spring holds out against on the left surface of indicating arm outer shroud platform, the left part lateral surface of indicator seat cylinder and indicator door is respectively six prismatic surfaces.
the upper and lower, left side of above-mentioned left-handed pole socket can be fixed with respectively the upper block of left-handed seat and the lower block of left-handed seat, and there is left limit screw the position of the upper block of the corresponding left-handed seat in left part front side of left-handed bull stick, is installed with left limit pin in left limit screw; The upper and lower, right side of dextrorotation pole socket can be fixed with respectively on dextrorotation seat block under block and dextrorotation seat, and on the corresponding dextrorotation seat in right part front side of dextrorotation bull stick, there is right limit screw the position of block, is installed with right limit pin in right limit screw.
between above-mentioned left-handed bull stick and left-handed bar hole, left seal ring set can be installed, on the left part lateral surface of left seal ring set, there is left ring set ring platform, on the right part inwall of left-handed block hole, there is left seat hole groove, on the left part inwall in left-handed bar hole, there is left-handed hole groove, left seal ring set right part is sleeved on inside, left-handed bar hole, the left part of left ring set ring platform is sleeved in the groove of left seat hole, and the right part of left ring set ring platform is sleeved in the groove of left-handed hole, and the right side of left ring set ring platform is pressed on the right side of left-handed hole groove; Between dextrorotation bull stick and dextrorotation bar hole, right seal ring set can be installed, on the right part lateral surface of right seal ring set, there is right ring set ring platform, on the left part inwall of dextrorotation block hole, there is right seat hole groove, on the right part inwall in dextrorotation bar hole, there is dextrorotation hole groove, right seal ring set left part is sleeved on inside, dextrorotation bar hole, the right part of right ring set ring platform is sleeved in the groove of left seat hole, and the left part of right ring set ring platform is sleeved in the groove of dextrorotation hole, and the left side of right ring set ring platform is pressed on the left side of dextrorotation hole groove.
on the right part lateral surface of above-mentioned left seal ring set, can there is left ring set seal groove and the left ring set sealing ring that can make to keep between left seal ring set outside and left-handed bar hole inwall sealing is installed, on the left-handed bull stick lateral surface of corresponding left seal ring set position, can have left-handed rod seal groove and the left-handed rod seal circle that can make to keep between left-handed bull stick outside and left seal ring set inwall sealing is installed; On the left part lateral surface of right seal ring set, can there is right ring set seal groove and the right ring set sealing ring that can make to keep between right seal ring set outside and dextrorotation bar hole inwall sealing is installed, on the dextrorotation bull stick lateral surface of corresponding right seal ring set position, can have dextrorotation rod seal groove and the dextrorotation rod seal circle that can make to keep between dextrorotation bull stick outside and right seal ring set inwall sealing is installed.
on above-mentioned indicating arm outer shroud platform, can have and be no less than the indicating arm seal groove of and be installed with the indicating arm sealing ring that can make to keep between indicating arm outer shroud platform outside and indication seat cavity wall sealing.
reasonable and compact in structure of the present invention, easy to use, it can open two the backing pin devices in left and right easily and reliably by left-handed bull stick and dextrorotation bull stick, can reliably judge that by plug indicating device whether packing plug is descending, effectively avoided the generation of well cementation accident, have simple in structure, safe and reliable, with low cost, be convenient to safeguard, reused feature.
Accompanying drawing explanation
the master that accompanying drawing 1 is most preferred embodiment of the present invention looks broken section structural representation.
accompanying drawing 2 is the local structure for amplifying schematic diagram at A place in accompanying drawing 1.
accompanying drawing 3 is the local structure for amplifying schematic diagram at B place in accompanying drawing 1.
master when accompanying drawing 4 is opened for backing pin device in accompanying drawing 1 looks broken section structural representation.
master when accompanying drawing 5 makes the work of plug indicating device for packing plug in accompanying drawing 1 moves down looks broken section structural representation.
coding in accompanying drawing is respectively: 1 is body tube, 2 is top connection, 3 is lower contact, 4 is packing plug, 5 is left backing pin case, 6 is right backing pin case, 7 is left pore, 8 is right pore, 9 is left-handed pole socket, 10 is left-handed bull stick, 11 is left-handed bar ear seat, 12 is left ear base upper plate, 13 is left ear base lower plate, 14 is left plug backing pin, 15 is left stop pin, 16 is dextrorotation pole socket, 17 is dextrorotation bull stick, 18 is right plug backing pin, 19 is left case chamber, 20 is right case chamber, 21 is left-handed bar hole, 22 is left-handed block hole, 23 is left-handed seat internal thread, 24 is upper left fraising, 25 is lower-left fraising, 26 is left hinge axis hole, 27 is left hinged otic placode, 28 is left hinge head, 29 is left hinge bar, 30 is left axostylus axostyle lockhole, 31 is the upper block of left-handed seat, 32 is the lower block of left-handed seat, 33 is left limit pin, 34 is left seal ring set, 35 is left ring set ring platform, 36 is left seat hole groove, 37 is left-handed hole groove, 38 is left ring set seal groove, 39 is left-handed rod seal groove, 40 is indicator seat cylinder, 41 is indicator door, 42 is indication push rod, 43 is back-moving spring, 44 is indicator installation screw, 45 is indication seat chamber, 46 is seat chamber internal thread, 47 is ring platform in indication seat, 48 is indicating arm outer shroud platform, 49 is indicator cover hole, 50 is indicating arm seal groove.
The specific embodiment
the present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
in the present invention, 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, 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 invention will be further described:
as shown in accompanying drawing 1,2,3, this cementing cement head comprises body tube 1, top connection 2, lower contact 3, packing plug 4, left backing pin case 5, right backing pin case 6, backing pin device and plug indicating device, the top of body tube 1 is fixedly connected with top connection 2, the bottom of body tube 1 is fixedly connected with lower contact 3, there are respectively left pore 7 and right pore 8 in body tube 1 left and right sides, middle part, in the body tube 1 in left pore 7 and right pore 8 outsides, be fixed with respectively left backing pin case 5 and right backing pin case 6, in left backing pin case 5 and right backing pin case 6, be separately installed with the backing pin device that can open and make packing plug 4 to move down, packing plug 4 is sleeved in the tube chamber of body tube 1, the lower end seat of packing plug 4 is on backing pin device, be provided with in left backing pin case 5 bottoms and can show that whether packing plug 4 is by the plug indicating device of backing pin device.By opening backing pin device, packing plug 4 is moved down, judge that by plug indicating device whether packing plug 4 is descending, can effectively show the downstream state of packing plug 4, effectively avoided the generation of well cementation accident.
can according to actual needs, above-mentioned cementing cement head be made further optimization and/or improvements:
as shown in accompanying drawing 1,2, backing pin device comprises left-handed pole socket 9, left-handed bull stick 10, left-handed bar ear seat 11, left ear base upper plate 12, left ear base lower plate 13, left plug backing pin 14, left jointed shaft, left stop pin 15, dextrorotation pole socket 16, dextrorotation bull stick 17, dextrorotation bar ear seat, right ear base upper plate, right ear base lower plate, right plug backing pin 18, right jointed shaft and right stop pin, there are respectively left case chamber 19 and right case chamber 20 in the inside of left backing pin case 5 and right backing pin case 6, left-handed bar hole 21 and the dextrorotation bar hole of axis along continuous straight runs arranged respectively at the top of left backing pin case 5 and right backing pin case 6, the right-hand member in left-handed bar hole 21 is connected with the tube chamber of body tube 1 by left case chamber 19 and left pore 7, and the left end in dextrorotation bar hole is connected with the tube chamber of body tube 1 by right case chamber 20 and right pore 8, on the left backing pin case 5 of 21 positions, corresponding left-handed bar hole, be bolted left-handed pole socket 9 is installed, on left-handed pole socket 9, there is the left-handed block hole 22 coaxial with left-handed bar hole 21, the right-hand member of left-handed block hole 22 is connected with left-handed bar hole 21 left ends, on the left part inwall of left-handed block hole 22, there is left-handed seat internal thread 23, there is external screw thread at the middle part of left-handed bull stick 10 is arranged on left-handed pole socket 9 inside by external screw thread and left-handed seat internal thread 23, the left end of left-handed bull stick 10 extend out to left-handed pole socket 9 lefts, the right-hand member of left-handed bull stick 10 is extended 19 inside, left case chamber and is fixed with left-handed bar ear seat 11 by left-handed bar hole 21, the upper and lower of left-handed bar ear seat 11 is fixed with respectively left ear base upper plate 12 and left ear base lower plate 13, there are respectively upper left fraising 24 and lower-left fraising 25 in the middle part of left ear base upper plate 12 and left ear base lower plate 13, the left end of left plug backing pin 14 is fixed with a left side hinged otic placode 27 of middle part with left hinge axis hole 26, left hinged otic placode 27 is arranged between left ear base upper plate 12 and left ear base lower plate 13 by left jointed shaft, left jointed shaft comprises the left hinge head 28 on top and the left hinge bar 29 of bottom, the lower surface of left hinge head 28 is pressed on the upper surface of left ear base upper plate 12, left hinge bar 29 is from top to bottom sleeved on upper left fraising 24 successively, in left hinge axis hole 26 and lower-left fraising 25, there is left axostylus axostyle lockhole 30 left hinge bar 29 bottoms is installed with left stop pin 15, on the right backing pin case 6 of corresponding dextrorotation bar hole site, be bolted dextrorotation pole socket 16 is installed, on dextrorotation pole socket 16, there is the dextrorotation block hole coaxial with dextrorotation bar hole, the left end of dextrorotation block hole is connected with dextrorotation bar hole right-hand member, on the right part inwall of dextrorotation block hole, there is dextrorotation seat internal thread, there is external screw thread at the middle part of dextrorotation bull stick 17 is arranged on dextrorotation pole socket 16 inside by external screw thread and dextrorotation seat internal thread, it is right-hand that the right-hand member of dextrorotation bull stick 17 extend out to dextrorotation pole socket 16, the left end of dextrorotation bull stick 17 is extended 20 inside, right case chamber and is fixed with dextrorotation bar ear seat by dextrorotation bar hole, the upper and lower of dextrorotation bar ear seat is fixed with respectively right ear base upper plate and right ear base lower plate, there are respectively upper right fraising and bottom right fraising in the middle part of right ear base upper plate and right ear base lower plate, the right-hand member of right plug backing pin 18 is fixed with the right side hinged otic placode of middle part with right hinge axis hole, right hinged otic placode is arranged between right ear base upper plate and right ear base lower plate by right jointed shaft, right jointed shaft comprises the right hinge head on top and the right hinge bar of bottom, the lower surface of right hinge head is pressed on the upper surface of right ear base upper plate, right hinge bar is from top to bottom sleeved on upper right fraising successively, in right hinge axis hole and bottom right fraising, there is right axostylus axostyle lockhole right hinge bar bottom is installed with right stop pin, the right-hand member of left plug backing pin 14 just the left end to right plug backing pin 18 and and the left end of right plug backing pin 18 between form backing pin gap.Two backing pin devices about can opening easily and reliably with left-handed bull stick 10 and dextrorotation bull stick 17, make left-handed bar ear seat 11 rotate 90 degree by rotating left-handed bull stick 10, make left ear base upper plate 12 and left ear base lower plate 13 keep vertical direction, left plug backing pin 14 screws off around left hinge bar 29 by the left hinge axis hole 26 of the left hinged otic placode 27 of its left end, rotate dextrorotation bull stick 17 simultaneously and make dextrorotation bar ear seat rotation 90 degree, right plug backing pin 18 is screwed off around right hinge bar, and packing plug 4 can freely move down; Backing pin gap can make the right-hand member of left plug backing pin 14 and the left end of right plug backing pin 18 mutually can not interfere and avoid stuck in the time screwing off.
as shown in accompanying drawing 1,3, plug indicating device comprises indicator seat cylinder 40, indicator door 41, indication push rod 42 and back-moving spring 43, on the left backing pin case 5 of left-handed pole socket 9 belows, there is indicator installation screw 44 and be installed with indicator seat cylinder 40, there is indication seat chamber 45 indicator seat cylinder 40 inside, on the left part inwall in indication seat chamber 45, there is a chamber internal thread 46, on the right part inwall in indication seat chamber 45, have ring platform 47 in indication seat, there is indicating arm outer shroud platform 48 in the outside, middle part of indication push rod 42, the right side of indicating arm outer shroud platform 48 is pressed on the left side of ring platform 47 in indication seat, there is screw thread in the outside of indicator door 41 is fixedly mounted on indication seat chamber 45 left parts by seat chamber internal thread 46, there is indicator cover hole 49 inside of indicator door 41, indication push rod 42 left parts are sleeved in indicator cover hole 49 and can move left and right, the right-hand member of indication push rod 42 be positioned at left plug backing pin 14 under and the left plug backing pin 14 that can be screwed off promote to move to left, on indication push rod 42 between indicator door 41 and indicating arm outer shroud platform 48, be set with back-moving spring 43, the left end of back-moving spring 43 holds out against on the right side of indicator door 41, the right-hand member of back-moving spring 43 holds out against on the left surface of indicating arm outer shroud platform 48, the left part lateral surface of indicator seat cylinder 40 and indicator door 41 is respectively six prismatic surfaces.The left plug backing pin 14 that indication push rod 42 can be fallen promotes to move to left, when packing plug 4 passes through left plug backing pin 14 and right plug backing pin 18, the length that the left end of indication push rod 42 stretches out indicator door 41 increases, and has directly demonstrated the state that passes through of packing plug 4.By six prismatic surfaces installation or removal indicator seat cylinder 40 and indicator door 41 easily.
as shown in accompanying drawing 1,2, the upper and lower, left side of left-handed pole socket 9 is fixed with respectively the upper block 31 of left-handed seat and the lower block 32 of left-handed seat, there is left limit screw the position of the upper block 31 of the corresponding left-handed seat in left part front side of left-handed bull stick 10, is installed with left limit pin 33 in left limit screw; The upper and lower, right side of dextrorotation pole socket 16 is fixed with respectively on dextrorotation seat block under block and dextrorotation seat, and on the corresponding dextrorotation seat in right part front side of dextrorotation bull stick 17, there is right limit screw the position of block, is installed with right limit pin in right limit screw.The rotational angle of left-handed bull stick 10 can be limited by the upper block 31 of left-handed seat and the lower block 32 of left-handed seat, the rotational angle of dextrorotation bull stick 17 can be limited by block under block on dextrorotation seat and dextrorotation seat.
as accompanying drawing 1, shown in 2, between left-handed bull stick 10 and left-handed bar hole 21, left seal ring set 34 is installed, on the left part lateral surface of left seal ring set 34, there is left ring set ring platform 35, on the right part inwall of left-handed block hole 22, there is left seat hole groove 36, on the left part inwall in left-handed bar hole 21, there is left-handed hole groove 37, left seal ring set 34 right parts are sleeved on 21 inside, left-handed bar hole, the left part of left ring set ring platform 35 is sleeved in left seat hole groove 36, the right part of left ring set ring platform 35 is sleeved in left-handed hole groove 37, the right side of left ring set ring platform 35 is pressed on the right side of left-handed hole groove 37, between dextrorotation bull stick 17 and dextrorotation bar hole, right seal ring set is installed, on the right part lateral surface of right seal ring set, there is right ring set ring platform, on the left part inwall of dextrorotation block hole, there is right seat hole groove, on the right part inwall in dextrorotation bar hole, there is dextrorotation hole groove, right seal ring set left part is sleeved on inside, dextrorotation bar hole, the right part of right ring set ring platform is sleeved in left seat hole groove 36, and the left part of right ring set ring platform is sleeved in the groove of dextrorotation hole, and the left side of right ring set ring platform is pressed on the left side of dextrorotation hole groove.Can further improve the sealing performance between left-handed bull stick 10 and left-handed bar hole 21 and between dextrorotation bull stick 17 and dextrorotation bar hole by left seal ring set 34 and right seal ring set; Left seal ring set 34 and right seal ring set are preferably copper sheathing, can extend its application life.
as shown in accompanying drawing 1,2, on the right part lateral surface of left seal ring set 34, there is left ring set seal groove 38 and the left ring set sealing ring that can make to keep between left seal ring set 34 outsides and left-handed bar hole 21 inwalls sealing is installed, on left-handed bull stick 10 lateral surfaces of corresponding left seal ring set 34 positions, have left-handed rod seal groove 39 and the left-handed rod seal circle that can make to keep between left-handed bull stick 10 outsides and left seal ring set 34 inwalls sealing is installed; On the left part lateral surface of right seal ring set, there is right ring set seal groove and the right ring set sealing ring that can make to keep between right seal ring set outside and dextrorotation bar hole inwall sealing is installed, on dextrorotation bull stick 17 lateral surfaces of corresponding right seal ring set position, have dextrorotation rod seal groove and the dextrorotation rod seal circle that can make to keep between dextrorotation bull stick 17 outsides and right seal ring set inwall sealing is installed.Can further improve the sealing performance of junction by left ring set sealing ring, left-handed rod seal circle, right ring set sealing ring and dextrorotation rod seal circle.
as shown in accompanying drawing 1,3, on indicating arm outer shroud platform 48, have and be no less than the indicating arm seal groove 50 of and be installed with the indicating arm sealing ring that can make to keep between indicating arm outer shroud platform 48 outsides and indication seat chamber 45 inwalls sealing.When indicating arm sealing ring can guarantee to indicate push rod 42 to move left and right can there is not leak of liquid in its lateral surface.
above technical characterictic has formed most preferred embodiment of the present invention, 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 most preferred embodiment of the present invention: first, the joint of perfusion mud is installed on sleeve pipe top, the present invention is arranged on to this joint top, by this joint perfusion mud, during for slurry, user is by manually left limit pin 33 and right limit pin being pulled downwards, until left limit pin 33 and right limit pin touch respectively block under the lower block 32 of left-handed seat and dextrorotation seat; Secondly, as shown in Figure 4, left limit pin 33 drives left-handed bar ear seat 11 to rotate 90 degree by left-handed bull stick 10, left plug backing pin 14 can freely be screwed off around left hinge bar 29, right limit pin drives dextrorotation bar ear seat rotation 90 degree by dextrorotation bull stick 17, right plug backing pin 18 can freely be screwed off around right hinge bar, and left plug backing pin 14 and right plug backing pin 18 are now removed the locking to packing plug 4, promote packing plug 4 move down for slurries; Then, as shown in Figure 5, the left plug backing pin 14 screwing off and right plug backing pin 18 lay respectively at left case chamber 19 and 20 inside, right case chamber, the right part downside of the left plug backing pin 14 after screwing off promotes to indicate push rod 42 left ends simultaneously, the elastic force that indication push rod 42 overcomes back-moving spring 43 moves to left gradually, and the indication push rod 42 that makes to extend out to indicator door 41 lefts is elongated gradually; Finally, user can confirm that according to whether the left end extension elongation of indication push rod 42 is elongated whether packing plug 4 is normally descending.
Claims (8)
1. a cementing cement head, is characterized in that comprising body tube, top connection, lower contact, packing plug, left backing pin case, right backing pin case, backing pin device and plug indicating device, the top of body tube is fixedly connected with top connection, the bottom of body tube is fixedly connected with lower contact, there are respectively left pore and right pore in the left and right sides, body tube middle part, in the body tube in left pore and right pore outside, be fixed with respectively left backing pin case and right backing pin case, in left backing pin case and right backing pin case, be separately installed with the backing pin device that can open and make packing plug to move down, packing plug is sleeved in the tube chamber of body tube, the lower end seat of packing plug is on backing pin device, be provided with in left backing pin case bottom and can show that whether packing plug is by the plug indicating device of backing pin device, wherein: backing pin device comprises left-handed pole socket, left-handed bull stick, left-handed bar ear seat, left ear base upper plate, left ear base lower plate, left plug backing pin, left jointed shaft, left stop pin, dextrorotation pole socket, dextrorotation bull stick, dextrorotation bar ear seat, right ear base upper plate, right ear base lower plate, right plug backing pin, right jointed shaft and right stop pin, there are respectively left case chamber and right case chamber in the inside of left backing pin case and right backing pin case, left-handed bar hole and the dextrorotation bar hole of axis along continuous straight runs arranged respectively at the top of left backing pin case and right backing pin case, the right-hand member in left-handed bar hole is connected with the tube chamber of body tube by left case chamber and left pore, and the left end in dextrorotation bar hole is connected with the tube chamber of body tube by right case chamber and right pore, on the left backing pin case of corresponding left-handed bar hole site, be bolted left-handed pole socket is installed, on left-handed pole socket, there is the left-handed block hole coaxial with left-handed bar hole, the right-hand member of left-handed block hole is connected with left-handed bar hole left end, on the left part inwall of left-handed block hole, there is left-handed seat internal thread, there is external screw thread at the middle part of left-handed bull stick is arranged on left-handed pole socket inside by external screw thread and left-handed seat internal thread, the left end of left-handed bull stick extend out to left-handed pole socket left, the right-hand member of left-handed bull stick is extended inside, left case chamber and is fixed with left-handed bar ear seat by left-handed bar hole, the upper and lower of left-handed bar ear seat is fixed with respectively left ear base upper plate and left ear base lower plate, there are respectively upper left fraising and lower-left fraising in the middle part of left ear base upper plate and left ear base lower plate, the left end of left plug backing pin is fixed with a left side hinged otic placode of middle part with left hinge axis hole, left hinged otic placode is arranged between left ear base upper plate and left ear base lower plate by left jointed shaft, left jointed shaft comprises the left hinge head on top and the left hinge bar of bottom, the lower surface of left hinge head is pressed on the upper surface of left ear base upper plate, left hinge bar is from top to bottom sleeved on upper left fraising successively, in left hinge axis hole and lower-left fraising, there is left axostylus axostyle lockhole left hinge bar bottom is installed with left stop pin, on the right backing pin case of corresponding dextrorotation bar hole site, be bolted dextrorotation pole socket is installed, on dextrorotation pole socket, there is the dextrorotation block hole coaxial with dextrorotation bar hole, the left end of dextrorotation block hole is connected with dextrorotation bar hole right-hand member, on the right part inwall of dextrorotation block hole, there is dextrorotation seat internal thread, there is external screw thread at the middle part of dextrorotation bull stick is arranged on dextrorotation pole socket inside by external screw thread and dextrorotation seat internal thread, it is right-hand that the right-hand member of dextrorotation bull stick extend out to dextrorotation pole socket, the left end of dextrorotation bull stick is extended inside, right case chamber and is fixed with dextrorotation bar ear seat by dextrorotation bar hole, the upper and lower of dextrorotation bar ear seat is fixed with respectively right ear base upper plate and right ear base lower plate, there are respectively upper right fraising and bottom right fraising in the middle part of right ear base upper plate and right ear base lower plate, the right-hand member of right plug backing pin is fixed with the right side hinged otic placode of middle part with right hinge axis hole, right hinged otic placode is arranged between right ear base upper plate and right ear base lower plate by right jointed shaft, right jointed shaft comprises the right hinge head on top and the right hinge bar of bottom, the lower surface of right hinge head is pressed on the upper surface of right ear base upper plate, right hinge bar is from top to bottom sleeved on upper right fraising successively, in right hinge axis hole and bottom right fraising, there is right axostylus axostyle lockhole right hinge bar bottom is installed with right stop pin, the right-hand member of left plug backing pin just the left end to right plug backing pin and and the left end of right plug backing pin between form backing pin gap.
2. cementing cement head according to claim 1, is characterized in that plug indicating device comprises indicator seat cylinder, indicator door, indication push rod and back-moving spring, on the left backing pin case of left-handed pole socket below, have indicator installation screw and be installed with indicator seat cylinder, there is indication seat chamber indicator seat cylinder inside, on the left part inwall in indication seat chamber, has a chamber internal thread, has ring platform in indication seat on the right part inwall in indication seat chamber, there is indicating arm outer shroud platform in the outside, middle part of indication push rod, the right side of indicating arm outer shroud platform is pressed on the left side of ring platform in indication seat, there is screw thread in the outside of indicator door is fixedly mounted on indication seat chamber left part by seat chamber internal thread, there is indicator cover hole the inside of indicator door, indication push rod left part is sleeved in indicator cover hole and can moves left and right, the right-hand member of indication push rod be positioned at left plug backing pin under and the left plug backing pin that can be screwed off promote to move to left, on indication push rod between indicator door and indicating arm outer shroud platform, be set with back-moving spring, the left end of back-moving spring holds out against on the right side of indicator door, the right-hand member of back-moving spring holds out against on the left surface of indicating arm outer shroud platform, the left part lateral surface of indicator seat cylinder and indicator door is respectively six prismatic surfaces.
3. cementing cement head according to claim 1, the upper and lower, left side that it is characterized in that left-handed pole socket is fixed with respectively the upper block of left-handed seat and the lower block of left-handed seat, there is left limit screw the position of the upper block of the corresponding left-handed seat in left part front side of left-handed bull stick, is installed with left limit pin in left limit screw; The upper and lower, right side of dextrorotation pole socket is fixed with respectively on dextrorotation seat block under block and dextrorotation seat, and on the corresponding dextrorotation seat in right part front side of dextrorotation bull stick, there is right limit screw the position of block, is installed with right limit pin in right limit screw.
4. cementing cement head according to claim 1, it is characterized in that, between left-handed bull stick and left-handed bar hole, left seal ring set is installed, on the left part lateral surface of left seal ring set, there is left ring set ring platform, on the right part inwall of left-handed block hole, there is left seat hole groove, on the left part inwall in left-handed bar hole, there is left-handed hole groove, left seal ring set right part is sleeved on inside, left-handed bar hole, the left part of left ring set ring platform is sleeved in the groove of left seat hole, the right part of left ring set ring platform is sleeved in the groove of left-handed hole, and the right side of left ring set ring platform is pressed on the right side of left-handed hole groove; Between dextrorotation bull stick and dextrorotation bar hole, right seal ring set is installed, on the right part lateral surface of right seal ring set, there is right ring set ring platform, on the left part inwall of dextrorotation block hole, there is right seat hole groove, on the right part inwall in dextrorotation bar hole, there is dextrorotation hole groove, right seal ring set left part is sleeved on inside, dextrorotation bar hole, the right part of right ring set ring platform is sleeved in the groove of left seat hole, and the left part of right ring set ring platform is sleeved in the groove of dextrorotation hole, and the left side of right ring set ring platform is pressed on the left side of dextrorotation hole groove.
5. cementing cement head according to claim 2, it is characterized in that, between left-handed bull stick and left-handed bar hole, left seal ring set is installed, on the left part lateral surface of left seal ring set, there is left ring set ring platform, on the right part inwall of left-handed block hole, there is left seat hole groove, on the left part inwall in left-handed bar hole, there is left-handed hole groove, left seal ring set right part is sleeved on inside, left-handed bar hole, the left part of left ring set ring platform is sleeved in the groove of left seat hole, the right part of left ring set ring platform is sleeved in the groove of left-handed hole, and the right side of left ring set ring platform is pressed on the right side of left-handed hole groove; Between dextrorotation bull stick and dextrorotation bar hole, right seal ring set is installed, on the right part lateral surface of right seal ring set, there is right ring set ring platform, on the left part inwall of dextrorotation block hole, there is right seat hole groove, on the right part inwall in dextrorotation bar hole, there is dextrorotation hole groove, right seal ring set left part is sleeved on inside, dextrorotation bar hole, the right part of right ring set ring platform is sleeved in the groove of left seat hole, and the left part of right ring set ring platform is sleeved in the groove of dextrorotation hole, and the left side of right ring set ring platform is pressed on the left side of dextrorotation hole groove.
6. cementing cement head according to claim 3, it is characterized in that, between left-handed bull stick and left-handed bar hole, left seal ring set is installed, on the left part lateral surface of left seal ring set, there is left ring set ring platform, on the right part inwall of left-handed block hole, there is left seat hole groove, on the left part inwall in left-handed bar hole, there is left-handed hole groove, left seal ring set right part is sleeved on inside, left-handed bar hole, the left part of left ring set ring platform is sleeved in the groove of left seat hole, the right part of left ring set ring platform is sleeved in the groove of left-handed hole, and the right side of left ring set ring platform is pressed on the right side of left-handed hole groove; Between dextrorotation bull stick and dextrorotation bar hole, right seal ring set is installed, on the right part lateral surface of right seal ring set, there is right ring set ring platform, on the left part inwall of dextrorotation block hole, there is right seat hole groove, on the right part inwall in dextrorotation bar hole, there is dextrorotation hole groove, right seal ring set left part is sleeved on inside, dextrorotation bar hole, the right part of right ring set ring platform is sleeved in the groove of left seat hole, and the left part of right ring set ring platform is sleeved in the groove of dextrorotation hole, and the left side of right ring set ring platform is pressed on the left side of dextrorotation hole groove.
7. cementing cement head according to claim 6, it is characterized in that there is left ring set seal groove on the right part lateral surface of left seal ring set and the left ring set sealing ring that can make to keep between left seal ring set outside and left-handed bar hole inwall sealing be installed on the left-handed bull stick lateral surface of corresponding left seal ring set position, have left-handed rod seal groove and be provided with to make the left-handed rod seal circle that between left-handed bull stick outside and left seal ring set inwall, maintenance seals; On the left part lateral surface of right seal ring set, there is right ring set seal groove and the right ring set sealing ring that can make to keep between right seal ring set outside and dextrorotation bar hole inwall sealing is installed, on the dextrorotation bull stick lateral surface of corresponding right seal ring set position, have dextrorotation rod seal groove and the dextrorotation rod seal circle that can make to keep between dextrorotation bull stick outside and right seal ring set inwall sealing is installed.
8. cementing cement head according to claim 7, is characterized in that having and being no less than the indicating arm seal groove of and being installed with the indicating arm sealing ring that can make to keep between indicating arm outer shroud platform outside and indication seat cavity wall sealing on indicating arm outer shroud platform.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110331726.XA CN102373898B (en) | 2011-10-27 | 2011-10-27 | Well cementing head |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110331726.XA CN102373898B (en) | 2011-10-27 | 2011-10-27 | Well cementing head |
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| CN102373898A CN102373898A (en) | 2012-03-14 |
| CN102373898B true CN102373898B (en) | 2014-07-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9051787B2 (en) * | 2012-04-29 | 2015-06-09 | Baker Hughes Incorporated | Quick connect coupling for cementing operations and the like |
| CN104295265B (en) * | 2014-10-15 | 2017-02-15 | 中国石油集团西部钻探工程有限公司 | Easy-opening cementing head with indication function |
| CN105350941B (en) * | 2015-12-04 | 2018-12-18 | 中国石油集团西部钻探工程有限公司 | Push-down instruction device and rubber plug downlink indicate cementing head |
| CN112253043A (en) * | 2020-12-09 | 2021-01-22 | 中国石油天然气集团有限公司 | High-pressure well cementing cement head |
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| US8302698B2 (en) * | 2009-05-07 | 2012-11-06 | Schlumberger Technology Corporation | Activation-device launcher for a cementing head |
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| CN87216818U (en) * | 1987-12-22 | 1988-10-12 | 四川石油管理局川东钻探公司 | Bridging plug of cement block |
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| CN102373898A (en) | 2012-03-14 |
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Effective date of registration: 20191008 Address after: No. 6, liupukang, Xicheng District, Beijing 100120 Co-patentee after: CNPC Xibu Drilling Engineering Company Limited Patentee after: PetroChina Natural Gas Group Co., Ltd. Address before: 834009 cementing fracture engineering company, the Xinjiang Uygur Autonomous Region, Karamay Patentee before: CNPC Xibu Drilling Engineering Company Limited |