CN113404462A - Equipment for replacing oil field well head valve in petroleum exploitation assistance - Google Patents
Equipment for replacing oil field well head valve in petroleum exploitation assistance Download PDFInfo
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- CN113404462A CN113404462A CN202110892984.9A CN202110892984A CN113404462A CN 113404462 A CN113404462 A CN 113404462A CN 202110892984 A CN202110892984 A CN 202110892984A CN 113404462 A CN113404462 A CN 113404462A
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- 239000003208 petroleum Substances 0.000 title description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 238000005553 drilling Methods 0.000 claims abstract description 20
- 230000008859 change Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000002457 bidirectional effect Effects 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims 5
- 239000003129 oil well Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 9
- 238000005086 pumping Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 14
- 230000008569 process Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the field of oil exploitation, in particular to equipment for replacing a well head valve of an oil field assisted with oil exploitation, which comprises a base frame I, a base frame II, a slotted connecting plate, an opening and closing mechanism, a drilling mechanism and the like; the other supporting equipment is provided with a first base frame, the other supporting equipment is provided with a second base frame, a slotted connecting plate is connected between the first base frame and the second base frame together, the slotted connecting plate is provided with an opening and closing mechanism, and the drilling mechanism is arranged on the opening and closing mechanism. Through rubber seal, rubber seal plugs up the oil well head to make the staff can change the valve for the oil well head at the oil pumping in-process, facilitate for follow-up change valve, reached and to facilitate for the oil well head change valve effect effectively for the staff.
Description
Technical Field
The invention relates to the field of oil exploitation, in particular to equipment for assisting oil exploitation in replacing a wellhead valve of an oil field.
Background
The oil well is a hole drilled by a well drilling method, after an oil layer is drilled in the oil well, a worker can put in an oil layer casing pipe, and inject oil well cement into an annular space between the casing pipe and the well wall to maintain the well wall and seal an oil layer, a gas layer and a water layer, then the oil layer is jetted by a perforating gun according to the requirements of oil field development, so that a channel is formed, the oil pipe is put in, and then the oil is lifted to a well head from the bottom of the oil well by using a proper induced flow method.
At the in-process that upwards extracts oil from the oil well, need use the well head valve, but the well head valve needs to be changed after using for a long time, and prior art needs the manual valve of closing earlier and stops oil pumping work, changes the operation of valve again, changes and need reopen the valve after accomplishing, just can pump oil, but prior art can't change the well head valve in oil pumping work, has greatly reduced the efficiency of pumping oil.
Disclosure of Invention
Based on this, it is necessary to provide a device for assisting the replacement of the wellhead valve of the oil field in oil extraction, which is convenient for assisting other devices to replace the valve for the oil wellhead in the oil extraction process, so as to solve the problem that the wellhead valve cannot be replaced in the oil extraction process, which is provided in the background art.
The technical scheme of the invention is as follows: the utility model provides an equipment that is used for supplementary oil field well head valve of oil development to change, including base frame one, base frame two, the fluting connecting plate, mechanism opens and shuts, drilling mechanism, shutoff mechanism, rotary mechanism and push down sealing mechanism, be equipped with base frame one on other supporting equipment, be equipped with base frame two on other supporting equipment, the joint has the fluting connecting plate between base frame one and the base frame two jointly, be equipped with the mechanism that opens and shuts on the fluting connecting plate, drilling mechanism locates on the mechanism that opens and shuts, shutoff mechanism locates on base frame two, rotary mechanism locates on the fluting connecting plate, push down sealing mechanism locates on drilling mechanism.
In one embodiment, the opening and closing mechanism comprises a motor supporting block, a two-way motor, a special-shaped sliding rod, a first gear, a first rack, sliding teeth, a first return spring, a slotted clamping ring, an arc-shaped slotted sliding block, a limiting plate, a second return spring, a first torsion spring and a three-way pipe, wherein the motor supporting block is connected onto a slotted connecting plate, the two-way motor is arranged on the motor supporting block, the two special-shaped sliding rods are connected onto the slotted connecting plate in a sliding mode, the two special-shaped sliding rods are arranged in a staggered mode, the first gear is connected onto an output shaft of the two-way motor at the lower portion, the first rack is connected onto the special-shaped sliding rod, the first rack is meshed with the first gear, the sliding teeth are connected onto the first rack, the first return spring is symmetrically connected between the first rack and the sliding teeth, the slotted clamping ring is connected onto the special-shaped sliding rod, the slotted clamping ring is connected onto a pair of arc-shaped slotted sliding blocks in a sliding mode, the limiting plate rotary type is connected on the arc fluting slider, is connected with second reset spring between arc fluting slider and the fluting chucking ring, and the first torsion spring of symmetric connection between limiting plate and the arc fluting slider, it has the three-way pipe to press from both sides tightly between fluting chucking ring and the limiting plate.
In one embodiment, the drilling mechanism comprises a reciprocating screw rod, a guide frame, a special-shaped sliding nut, a transmission disc, a connecting rod, a supporting rod, an eight-surface shaft, a rectangular slotted frame I, a triangular sliding sleeve, a drill bit, a third reset spring and a supporting bottom plate, wherein the reciprocating screw rod is connected to an output shaft of a bidirectional motor above the bidirectional motor in a coupling mode, the guide frame is rotatably connected to a motor supporting block, the guide frame is rotatably connected with the reciprocating screw rod, the special-shaped sliding nut is matched with the reciprocating screw rod through threads, the special-shaped sliding nut is in sliding fit with the guide frame, the top end of the reciprocating screw rod is connected with the transmission disc in a coupling mode, the supporting rod is connected to the supporting rod in a rotating mode, the eight-surface shaft is connected with the eight-surface shaft in a coupling mode, the transmission disc is connected to the common rotating, the triangular sliding sleeve is symmetrically connected with a first rectangular slotted frame in a sliding manner, a third return spring is connected between the first rectangular slotted frame and the triangular sliding sleeve, and a supporting bottom plate is connected between the two first rectangular slotted frames.
In one embodiment, the plugging mechanism comprises a wedge-shaped plugging plate, a fourth reset spring, a Z-shaped wedge frame, a fifth reset spring, a slotted wedge frame, a sixth reset spring, a rotating shaft, a swinging wedge block, a second torsion spring, a rectangular slotted frame II, a triangular wedge frame, a seventh reset spring, a limiting wedge block and an eighth reset spring, the wedge-shaped plugging plate is connected on the base frame II in a sliding manner, the fourth reset spring is connected between the wedge-shaped plugging plate and the base frame II, the Z-shaped wedge frame is connected on the base frame II in a sliding manner, the fifth reset spring is connected between the Z-shaped wedge frame and the base frame II, the slotted wedge frame is connected on the base frame II in a sliding manner, the slotted wedge frame is in contact with the Z-shaped wedge frame, the sixth reset spring is connected between the slotted wedge frame and the base frame II, the rotating shaft is connected on the slotted wedge frame, the swing wedge block is connected to the rotating shaft in a linked mode, the swing wedge block is in contact with the slotting wedge frame, a second torsion spring is symmetrically connected between the swing wedge block and the slotting wedge frame, a second rectangular slotting frame is connected to the second base frame in a linked mode, the second rectangular slotting frame is connected with the triangular wedge frame in a sliding mode, a seventh reset spring is connected between the triangular wedge frame and the second rectangular slotting frame, the triangular wedge frame is connected with the limiting wedge block in a sliding mode, and an eighth reset spring is connected between the limiting wedge block and the triangular wedge frame.
In one embodiment, the rotating mechanism comprises an overrunning clutch, a second gear, a rectangular slotted frame III, a rack II and a ninth return spring, the overrunning clutch is rotatably connected to the slotted connecting plate and rotatably connected with a motor supporting block, the overrunning clutch is fixedly connected with the supporting base plate, the second gear is connected to the overrunning clutch, the rectangular slotted frame III is connected to the top of the slotted connecting plate, a rack II is slidably connected to the rectangular slotted frame III and meshed with the second gear, the ninth return spring is connected between the rack II and the rectangular slotted frame III, the rack II is in contact with the wedge-shaped plugging plate, and the rack II is in contact with the triangular wedge-shaped frame.
In one embodiment, the downward pressing sealing mechanism comprises a rectangular slotted frame four, a special-shaped slotted frame, a special-shaped lower pressing rod, a special-shaped slotted rotating shaft seat, a tenth reset spring, an eleventh reset spring, a countersunk head shaft, a third gear, a rack three, a twelfth reset spring, a rotating disk, an extension rod, a slotted disk and a rubber sealing ring, the rectangular slotted frame four is symmetrically connected to the top of the supporting base plate, the special-shaped slotted frame is fixedly connected to the rectangular slotted frame four, the special-shaped lower pressing rod is jointly and slidably connected between the two rectangular slotted frames four, the special-shaped slotted rotating shaft seat is slidably connected to the special-shaped slotted frame, the special-shaped slotted rotating shaft seat is slidably connected to the special-shaped lower pressing rod, the tenth reset spring is connected between the rectangular slotted frame four and the special-shaped lower pressing rod, and the eleventh reset spring is, the rotary type is connected with the countersunk shaft on the heterotypic fluting pivot seat, the hookup has the third gear on the countersunk shaft, heterotypic depression bar bottom hookup has rack three down, rack three and third gear engagement, be connected with the twelfth reset spring between heterotypic depression bar and the heterotypic fluting pivot seat down, the epaxial symmetry of countersunk shaft hookup has the rotary disk, the distributing type is provided with the arc spout on the rotary disk, the sliding connection that distributes on the rotary disk has the extension rod, extension rod and countersunk shaft contact, the rotary type is connected with a pair of fluting dish on the countersunk shaft, fluting dish and extension rod sliding type cooperation, the hookup has rubber seal on the heterotypic fluting pivot seat, rubber seal cup joints with the fluting dish, rubber seal contacts with the extension rod.
Has the advantages that:
through the wedge closure plate, the wedge closure plate can be temporarily plugged up the opening at three-way pipe top, can prevent the liquid blowout in the well, is convenient for follow-up for oil well head change valve, has reached the effect that can assist other equipment to change the valve for oil well head.
Through rubber seal, rubber seal plugs up the oil well head to make the staff can change the valve for the oil well head at the oil pumping in-process, facilitate for follow-up change valve, reached and to facilitate for the oil well head change valve effect effectively for the staff.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
Fig. 3 is a partial perspective view of the present invention.
Fig. 4 is a schematic view of a first partial structure of the opening and closing mechanism of the present invention.
Fig. 5 is a schematic view of a second partial structure of the opening and closing mechanism of the present invention.
Fig. 6 is an enlarged perspective view of the present invention a.
Fig. 7 is a partially disassembled perspective view of the opening and closing mechanism of the present invention.
Fig. 8 is a schematic perspective view of the drilling mechanism of the present invention.
Fig. 9 is a schematic diagram of a disassembled three-dimensional structure of the plugging mechanism of the present invention.
Fig. 10 is a schematic perspective view of the rotating mechanism of the present invention.
Fig. 11 is a schematic perspective view of a portion of the push-down sealing mechanism of the present invention.
Fig. 12 is a partially disassembled perspective view of the push-down sealing mechanism of the present invention.
Labeled as: 1-base frame one, 2-base frame two, 3-slotted connecting plate, 4-opening and closing mechanism, 41-motor supporting block, 42-bidirectional motor, 43-special-shaped sliding rod, 44-first gear, 45-rack one, 46-sliding tooth, 47-first return spring, 48-slotted clamping ring, 49-arc slotted sliding block, 410-limiting plate, 411-second return spring, 412-first torsion spring, 413-three-way pipe, 5-drilling mechanism, 51-reciprocating screw rod, 52-guide frame, 53-special-shaped sliding nut, 54-driving disk, 55-connecting rod, 56-supporting rod, 57-octagon shaft, 58-rectangular slotted frame one, 59-triangular sliding sleeve, 510-drill bit, 511-a third return spring, 512-a support base plate, 6-a plugging mechanism, 61-a wedge-shaped plugging plate, 62-a fourth return spring, 63-a Z-shaped wedge frame, 64-a fifth return spring, 65-a slotted wedge frame, 66-a sixth return spring, 67-a rotating shaft, 68-a swinging wedge block, 69-a second torsion spring, 610-a second rectangular slotted frame, 611-a triangular wedge frame, 612-a seventh return spring, 613-a limiting wedge block, 614-an eighth return spring, 7-a rotating mechanism, 71-an overrunning clutch, 72-a second gear, 73-a third rectangular slotted frame, 74-a second rack, 75-a ninth return spring, 8-a downward pressing sealing mechanism, 81-a fourth rectangular slotted frame, 82-a special-shaped slotted frame, 83-special-shaped lower pressing rod, 84-special-shaped slotted rotating shaft seat, 85-tenth return spring, 86-eleventh return spring, 87-countersunk shaft, 88-third gear, 89-rack III, 810-twelfth return spring, 811-rotating disc, 812-extension rod, 813-slotted disc and 814-rubber sealing ring.
Detailed Description
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b): an equipment for assisting oil field wellhead valve replacement, as shown in figures 1-12, comprises a base frame I1, a base frame II 2, a slotted connecting plate 3, an opening and closing mechanism 4, a drilling mechanism 5, a plugging mechanism 6, a rotating mechanism 7 and a pressing and sealing mechanism 8, the three-way pipe drilling device is characterized in that a first base frame 1 is arranged on other supporting devices, a second base frame 2 is arranged on other supporting devices, a slotted connecting plate 3 is jointly connected between the first base frame 1 and the second base frame 2, an opening and closing mechanism 4 is arranged on the slotted connecting plate 3, a drilling mechanism 5 is arranged on the opening and closing mechanism 4, a plugging mechanism 6 is arranged on the second base frame 2, the plugging mechanism 6 is used for plugging an opening in the top of a three-way pipe 413, a rotating mechanism 7 is arranged on the slotted connecting plate 3, a downward pressing sealing mechanism 8 is arranged on the drilling mechanism 5, and the downward pressing sealing mechanism 8 is used for plugging a petroleum well head.
The opening and closing mechanism 4 comprises a motor supporting block 41, a bidirectional motor 42, a special-shaped sliding rod 43, a first gear 44, a first rack 45, sliding teeth 46, a first return spring 47, a slotted clamp ring 48, an arc-shaped slotted slider 49, a limiting plate 410, a second return spring 411, a first torsion spring 412 and a three-way pipe 413, the motor supporting block 41 is connected to the slotted connecting plate 3, the bidirectional motor 42 is arranged on the motor supporting block 41, the bidirectional motor 42 is used for driving the first gear 44 and devices thereon to rotate, the slotted connecting plate 3 is slidably connected with the two special-shaped sliding rods 43, the two special-shaped sliding rods 43 are arranged in a staggered mode, the first gear 44 is connected to an output shaft below the bidirectional motor 42, the first gear 44 is used for driving the first rack 45 and devices thereon to move, the first rack 45 is connected to the special-shaped sliding rods 43, the first rack 45 is meshed with the first gear 44, the sliding teeth 46 are connected to the first sliding rack 45, first return springs 47 are symmetrically connected between the first rack 45 and the sliding teeth 46, the slotted clamping ring 48 is connected to the special-shaped sliding rod 43, a pair of arc-shaped slotted sliding blocks 49 are connected to the slotted clamping ring 48 in a sliding mode, the limiting plate 410 is connected to the arc-shaped slotted sliding blocks 49 in a rotating mode, a second return spring 411 is connected between the arc-shaped slotted sliding blocks 49 and the slotted clamping ring 48, the second return spring 411 is used for driving the arc-shaped slotted sliding blocks 49 to return, first torsion springs 412 are symmetrically connected between the limiting plate 410 and the arc-shaped slotted sliding blocks 49, the limiting plate 410 is driven to return by the first torsion springs 412, a tee pipe 413 is clamped between the slotted clamping ring 48 and the limiting plate 410, and the tee pipe 413 is used for extruding the limiting plate 410 to rotate.
The drilling mechanism 5 comprises a reciprocating screw rod 51, a guide frame 52, a special-shaped sliding nut 53, a transmission disc 54, a connecting rod 55, a supporting rod 56, an eight-sided shaft 57, a rectangular slotted frame I58, a triangular sliding sleeve 59, a drill bit 510, a third return spring 511 and a supporting bottom plate 512, wherein the reciprocating screw rod 51 is connected on an output shaft of the bidirectional motor 42 above, the guide frame 52 is rotatably connected on a motor supporting block 41, the guide frame 52 is rotatably connected with the reciprocating screw rod 51, the special-shaped sliding nut 53 is matched on the reciprocating screw rod 51 through threads, the special-shaped sliding nut 53 can reciprocate up and down through the matching of the reciprocating screw rod 51 and the special-shaped sliding nut 53, the special-shaped sliding nut 53 is in sliding fit with the guide frame 52, the transmission disc 54 is connected at the top end of the reciprocating screw rod 51, one transmission disc 54 can drive the other transmission disc 54 through the connecting rod 55 and the transmission disc 54 and the device on the transmission disc 54, the supporting rod 56 is connected on the guide frame 52, the supporting rod 56 is rotatably connected with an eight-surface shaft 57, the top end of the eight-surface shaft 57 is also connected with a transmission disc 54, the two transmission discs 54 are connected with a connecting rod 55 in a rotating mode, the eight-surface shaft 57 is sleeved with a drill bit 510, the drill bit 510 is used for drilling a petroleum wellhead, the drill bit 510 is rotatably connected with a triangular sliding sleeve 59, the triangular sliding sleeve 59 is symmetrically and slidably connected with a rectangular slotted frame 58, a third return spring 511 is connected between the rectangular slotted frame 58 and the triangular sliding sleeve 59, the third return spring 511 is used for driving the triangular sliding sleeve 59 and the upper device to return, and a supporting bottom plate 512 is connected between the two rectangular slotted frames 58.
The plugging mechanism 6 comprises a wedge-shaped plugging plate 61, a fourth reset spring 62, a Z-shaped wedge frame 63, a fifth reset spring 64, a slotted wedge frame 65, a sixth reset spring 66, a rotating shaft 67, a swinging wedge block 68, a second torsion spring 69, a rectangular slotted frame II 610, a triangular wedge frame 611, a seventh reset spring 612, a limiting wedge block 613 and an eighth reset spring 614, the wedge-shaped plugging plate 61 is connected on the base frame II 2 in a sliding manner, the wedge-shaped plugging plate 61 is used for plugging an opening at the top of the three-way pipe 413, the fourth reset spring 62 is connected between the wedge-shaped plugging plate 61 and the base frame II 2, the fourth reset spring 62 is used for driving the wedge-shaped plugging plate 61 to reset, the Z-shaped wedge frame 63 is connected on the base frame II 2 in a sliding manner, the Z-shaped wedge frame 63 is used for pushing the wedge-shaped plugging plate 61 to move towards the direction close to the two-way motor 42, and the fifth reset spring 64 is connected between the Z-shaped wedge frame 63 and the base frame II 2, the fifth reset spring 64 is used for driving the Z-shaped wedge frame 63 to reset, the second base frame 2 is connected with the slotted wedge frame 65 in a sliding manner, the slotted wedge frame 65 is in contact with the Z-shaped wedge frame 63, a sixth reset spring 66 is connected between the slotted wedge frame 65 and the second base frame 2, the sixth reset spring 66 is used for driving the slotted wedge frame 65 to reset, the slotted wedge frame 65 is connected with a rotating shaft 67 in a rotating manner, a swinging wedge block 68 is connected onto the rotating shaft 67 in a connecting manner, the swinging wedge block 68 is used for extruding the Z-shaped wedge frame 63 to move downwards, the swinging wedge block 68 is in contact with the slotted wedge frame 65, a second torsion spring 69 is symmetrically connected between the swinging wedge block 68 and the slotted wedge frame 65, the second torsion spring 69 is used for driving the swinging wedge block 68 to reset, a second rectangular slotted frame 610 is connected onto the second base frame 2, and a triangular wedge frame 611 is connected onto the second rectangular slotted frame 610 in a sliding manner, a seventh return spring 612 is connected between the triangular wedge frame 611 and the rectangular slotted frame II 610, the seventh return spring 612 is used for driving the triangular wedge frame 611 to return, the triangular wedge frame 611 is connected with a limit wedge block 613 in a sliding manner, an eighth return spring 614 is connected between the limit wedge block 613 and the triangular wedge frame 611, and the eighth return spring 614 is used for driving the limit wedge block 613 to return.
The rotating mechanism 7 comprises an overrunning clutch 71 and a second gear 72, the slotting device comprises a rectangular slotting frame III 73, a rack II 74 and a ninth return spring 75, wherein an overrunning clutch 71 is rotatably connected to the slotting connecting plate 3, the overrunning clutch 71 is rotatably connected with the motor supporting block 41, the overrunning clutch 71 is fixedly connected with the supporting base plate 512, a second gear 72 is connected to the overrunning clutch 71, the rectangular slotting frame III 73 is connected to the top of the slotting connecting plate 3, a rack II 74 is slidably connected to the rectangular slotting frame III 73, the rack II 74 is used for driving the second gear 72 and the device thereon to rotate in a 180-degree reverse mode, the rack II 74 is meshed with the second gear 72, the ninth return spring 75 is connected between the rack II 74 and the rectangular slotting frame III 73, the ninth return spring 75 is used for driving the rack II 74 to return, the rack II 74 is in contact with the wedge-shaped plugging plate 61, and the rack II 74 is in contact with the triangular wedge-shaped frame 611.
The downward pressing sealing mechanism 8 comprises a rectangular slotted frame four 81, a special-shaped slotted frame 82, a special-shaped downward pressing rod 83, a special-shaped slotted rotating shaft seat 84, a tenth reset spring 85, an eleventh reset spring 86, a countersunk head shaft 87, a third gear 88, a rack three 89, a twelfth reset spring 810, a rotating disk 811, an extension rod 812, a slotted disk 813 and a rubber sealing ring 814, wherein the rectangular slotted frame four 81 is symmetrically connected to the top of a supporting bottom plate 512, the special-shaped slotted frame 82 is fixedly connected to the top of the supporting bottom plate 512, the special-shaped slotted frame 82 is fixedly connected with the rectangular slotted frame four 81, the special-shaped downward pressing rod 83 is jointly and slidably connected between the two rectangular slotted frame four 81, the special-shaped slotted frame 82 is slidably connected with the special-shaped slotted rotating shaft seat 84, the special-shaped slotted rotating shaft seat 84 is used for pushing the triangular wedge-shaped frame 611 and the upper device thereof to move towards the direction far away from the frame two 2, the special-shaped slotted rotating shaft seat 84 is slidably connected with the special-shaped downward pressing rod 83, a tenth reset spring 85 is connected between the rectangular slotted frame four 81 and the special-shaped lower pressure rod 83, the tenth reset spring 85 is used for driving the special-shaped lower pressure rod 83 and the upper device thereof to reset, an eleventh reset spring 86 is connected between the special-shaped slotted rotating shaft seat 84 and the special-shaped slotted frame 82, the eleventh reset spring 86 is used for driving the special-shaped slotted rotating shaft seat 84 to reset, the special-shaped slotted rotating shaft seat 84 is rotatably connected with a countersunk head shaft 87, the countersunk head shaft 87 is connected with a third gear 88, the bottom end of the special-shaped lower pressure rod 83 is connected with a rack third 89, the rack third 89 is used for driving the third gear 88 and the upper device thereof to rotate, the rack third 89 is meshed with the third gear 88, a twelfth reset spring 810 is connected between the special-shaped lower pressure rod 83 and the special-shaped slotted rotating shaft seat 84, the twelfth reset spring 810 is used for driving the special-shaped lower pressure rod 83 and the upper device thereof to reset, and the countersunk head shaft 87 is symmetrically connected with a rotating disk 811, the rotary disk 811 is provided with arc chutes in a distributed manner, the rotary disk 811 is connected with the extension rod 812 in a sliding manner in a distributed manner, the extension rod 812 contacts with the countersunk shaft 87, the countersunk shaft 87 is connected with a pair of slotted discs 813 in a rotating manner, the slotted discs 813 are in sliding fit with the extension rod 812, the profiled slotted rotating shaft seat 84 is connected with a rubber sealing ring 814 in a coupling manner, the rubber sealing ring 814 is used for plugging a petroleum wellhead, the rubber sealing ring 814 is sleeved with the slotted discs 813, and the rubber sealing ring 814 contacts with the extension rod 812.
Place equipment by the well head that needs to change the valve, the oil well head that makes need to change the valve is located between the three-way pipe 413, manual control two-way motor 42 reverses, two-way motor 42 can drive first gear 44 and go up the device through the output shaft that is in the below and reverse, first gear 44 can drive rack 45 and go up the device and move towards the direction that is close to each other, homonymy arc fluting slider 49 can extrude each other, second reset spring 411 can be compressed, three-way pipe 413 can extrude limiting plate 410 and rotate simultaneously, first torsion spring 412 can be compressed thereupon, make two tee bend 413 closely laminate.
When the bidirectional motor 42 is started, the output shaft of the bidirectional motor 42 above drives the reciprocating screw rod 51 and the upper device thereof to rotate, the special-shaped sliding nut 53 can reciprocate up and down through the matching of the reciprocating screw rod 51 and the special-shaped sliding nut 53, the special-shaped sliding nut 53 can push the triangular sliding sleeve 59 and the upper device thereof to move downwards in the downward movement process of the special-shaped sliding nut 53, the third return spring 511 can be compressed, meanwhile, one of the transmission discs 54 can drive the other transmission disc 54 and the upper device thereof to rotate through the connecting rod 55, so that the drill bit 510 punches a petroleum wellhead, and when the special-shaped sliding nut 53 moves upwards, the triangular sliding sleeve 59 and the upper device thereof can be reset under the resetting action of the third return spring 511.
During the downward movement of the triangular sliding sleeve 59 and the device thereon, the triangular sliding sleeve 59 will push the swinging wedge block 68 to rotate, the second torsion spring 69 will be compressed, then the triangular sliding sleeve 59 will move to the lower side of the swinging wedge block 68, the swinging wedge block 68 will reset under the resetting action of the second torsion spring 69, during the resetting of the triangular sliding sleeve 59 and the device thereon, the triangular sliding sleeve 59 will push the swinging wedge block 68 to move away from the guide frame 52, the sixth reset spring 66 will be compressed, the swinging wedge block 68 will press the zigzag wedge frame 63 to move downward, the fifth reset spring 64 will be compressed, the zigzag wedge frame 63 will push the wedge blocking plate 61 to move toward the direction close to the two-way motor 42, the fourth reset spring 62 will be compressed, so that the wedge blocking plate 61 blocks the opening at the top of the three-way pipe 413, therefore, liquid in the petroleum well head can be prevented from being sprayed out, in the process, the wedge-shaped plugging plate 61 can push the limiting wedge block 613 to move downwards, the eighth reset spring 614 can be compressed, then the wedge-shaped plugging plate 61 can be contacted with the other side of the limiting wedge block 613, the limiting wedge block 613 can reset under the resetting action of the eighth reset spring 614, the limiting wedge block 613 clamps the wedge-shaped plugging plate 61, the wedge-shaped plugging plate 61 is prevented from resetting, then the triangular sliding sleeve 59 does not push the swinging wedge block 68 any more, the slotted wedge frame 65 and the devices on the slotted wedge frame can reset under the resetting action of the sixth reset spring 66, and the Z-shaped wedge frame 63 can reset under the resetting action of the fifth reset spring 64.
In the process that the wedge-shaped plugging plate 61 moves towards the direction close to the two-way motor 42, the wedge-shaped plugging plate 61 pushes the second rack 74 to move, the ninth return spring 75 is compressed, the second rack 74 drives the second gear 72 and the upper device thereof to rotate reversely by 180 degrees, then the special-shaped sliding nut 53 moves downwards, as the elastic force of the twelfth return spring 810 is greater than the elastic force of the tenth return spring 85 and the eleventh return spring 86, the special-shaped sliding nut 53 pushes the special-shaped lower pressing rod 83 and the upper device thereof to move downwards, the tenth return spring 85 and the eleventh return spring 86 are compressed, in the process, the special-shaped slotted rotating shaft seat 84 pushes the triangular wedge frame 611 and the upper device thereof to move towards the direction away from the second base frame 2, the seventh return spring 612 is compressed, so that the limiting wedge block 613 does not limit the wedge-shaped plugging plate 61, the wedge-shaped plugging plate 61 is reset under the reset action of the fourth return spring 62, then the triangular wedge frame 611 and the devices thereon can be reset under the reset action of the seventh reset spring 612, then the special-shaped slotting rotating shaft seat 84 can be blocked by the special-shaped slotting frame 82, the special-shaped slotting rotating shaft seat 84 can stop moving downwards, the special-shaped lower pressing rod 83 can continue moving downwards, the twelfth reset spring 810 can be compressed accordingly, the tenth reset spring 85 can be compressed continuously, the rack three 89 can drive the third gear 88 and the devices thereon to rotate forwards, under the action of the rotating disc 811, the extension rod 812 can prop open the rubber seal 814, so that the rubber seal 814 blocks the petroleum wellhead, and the valve can be replaced for the petroleum wellhead subsequently.
The bi-directional motor 42 is then manually controlled to stop and the valve is replaced for the petroleum wellhead using other equipment.
When the wedge-shaped blocking plate 61 is reset, the second rack 74 is reset under the reset action of the ninth reset spring 75, the second rack 74 drives the second gear 72 to rotate clockwise, and the support base plate 512 and the upper device thereof cannot rotate under the action of the overrunning clutch 71.
Then the two-way motor 42 is manually controlled to be started, the twelfth reset spring 810 can drive the special-shaped lower pressing rod 83 and the device on the special-shaped lower pressing rod to reset upwards, the extension rod 812 can reset under the action of the rotating disc 811, the tenth reset spring 85 can drive the special-shaped lower pressing rod 83 and the device on the special-shaped lower pressing rod to reset to the initial position, the special-shaped grooved rotating shaft seat 84 can reset under the resetting action of the eleventh reset spring 86, then a worker can use a welding tool to weld the three-way pipe 413 on a petroleum wellhead, and then the worker seals an opening in the top of the three-way pipe 413.
Then the bidirectional motor 42 is manually controlled to rotate forwards, the bidirectional motor 42 can drive the first gear 44 and the upper device to rotate forwards through the output shaft at the lower part, the first gear 44 can drive the first rack 45 and the upper device to move and reset towards the direction away from each other, the arc-shaped slotted sliding block 49 can reset under the resetting action of the second resetting spring 411, the limiting plate 410 can reset under the resetting action of the first torsion spring 412, finally, the bidirectional motor 42 is manually controlled to stop operating, the equipment is manually removed, the supporting base plate 512 and the upper device are manually adjusted to the initial state in the next use, and the valve can be replaced for the petroleum wellhead by using the equipment through the repeated operation.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (6)
1. The utility model provides an equipment that is used for supplementary oil field well head valve of oil development to change which characterized in that: the drilling machine comprises a base frame I (1), a base frame II (2), a slotting connecting plate (3), an opening and closing mechanism (4), a drilling mechanism (5), a plugging mechanism (6), a rotating mechanism (7) and a pressing sealing mechanism (8), wherein the base frame I (1) is arranged on other supporting equipment, the base frame II (2) is arranged on other supporting equipment, the slotting connecting plate (3) is jointly connected between the base frame I (1) and the base frame II (2), the opening and closing mechanism (4) is arranged on the slotting connecting plate (3), the drilling mechanism (5) is arranged on the opening and closing mechanism (4), the plugging mechanism (6) is arranged on the base frame II (2), the rotating mechanism (7) is arranged on the slotting connecting plate (3), and the pressing sealing mechanism (8) is arranged on the drilling mechanism (5).
2. The apparatus of claim 1 for oil recovery assisted oilfield wellhead valve replacement, wherein: the opening and closing mechanism (4) comprises a motor supporting block (41), a two-way motor (42), a special-shaped sliding rod (43), a first gear (44), a first rack (45), a sliding tooth (46), a first return spring (47), a slotted clamping ring (48), an arc slotted sliding block (49), a limiting plate (410), a second return spring (411), a first torsion spring (412) and a three-way pipe (413), wherein the motor supporting block (41) is connected to a slotted connecting plate (3), the two-way motor (42) is arranged on the motor supporting block (41), the two special-shaped sliding rods (43) are connected to the slotted connecting plate (3) in a sliding mode, the two special-shaped sliding rods (43) are arranged in a staggered mode, the first gear (44) is connected to an output shaft of the two-way motor (42) below, the first rack (45) is connected to the special-shaped sliding rods (43), the first rack (45) is meshed with the first gear (44), the sliding gear (46) is connected to the first rack (45) in a sliding mode, first reset springs (47) are symmetrically connected between the first rack (45) and the sliding gear (46), the slotted clamping ring (48) is connected to the special-shaped sliding rod (43), the slotted clamping ring (48) is connected with a pair of arc slotted sliding blocks (49) in a sliding mode, the limiting plate (410) is connected to the arc slotted sliding blocks (49) in a rotating mode, a second reset spring (411) is connected between the arc slotted sliding blocks (49) and the slotted clamping ring (48), first torsion springs (412) are symmetrically connected between the limiting plate (410) and the arc slotted sliding blocks (49), and a three-way pipe (413) is clamped between the slotted clamping ring (48) and the limiting plate (410).
3. The apparatus of claim 2 for oil recovery assisted oilfield wellhead valve replacement, wherein: the drilling mechanism (5) comprises a reciprocating screw rod (51), a guide frame (52), a special-shaped sliding nut (53), a transmission disc (54), a connecting rod (55), a supporting rod (56), an octahedral shaft (57), a rectangular slotted frame I (58), a triangular sliding sleeve (59), a drill bit (510), a third reset spring (511) and a supporting bottom plate (512), wherein an output shaft of a bidirectional motor (42) above is connected with the reciprocating screw rod (51) in a coupling manner, a motor supporting block (41) is connected with the guide frame (52) in a rotating manner, the guide frame (52) is connected with the reciprocating screw rod (51) in a rotating manner, the reciprocating screw rod (51) is matched with the special-shaped sliding nut (53) through threads, the special-shaped sliding nut (53) is matched with the guide frame (52) in a sliding manner, the top end of the reciprocating screw rod (51) is connected with the transmission disc (54), the supporting rod (56) is connected with the guide frame (52) in a coupling manner, the rotary type is connected with eight face axle (57) on bracing piece (56), octahedral axle (57) top is connected with transmission disc (54) equally, the common rotary type is connected with connecting rod (55) between two transmission disc (54), drill bit (510) have been cup jointed on octahedral axle (57), rotary type is connected with triangle sliding sleeve (59) on drill bit (510), symmetry sliding type is connected with rectangle slotted frame (58) on triangle sliding sleeve (59), be connected with third reset spring (511) between rectangle slotted frame (58) and triangle sliding sleeve (59), connect supporting baseplate (512) jointly between two rectangle slotted frame (58).
4. The apparatus of claim 3 for oil recovery assisted oilfield wellhead valve replacement, wherein: the plugging mechanism (6) comprises a wedge-shaped plugging plate (61), a fourth reset spring (62), a Z-shaped wedge frame (63), a fifth reset spring (64), a slotted wedge frame (65), a sixth reset spring (66), a rotating shaft (67), a swinging wedge block (68), a second torsion spring (69), a rectangular slotted frame II (610), a triangular wedge frame (611), a seventh reset spring (612), a limiting wedge block (613) and an eighth reset spring (614), the wedge-shaped plugging plate (61) is connected on the base frame II (2) in a sliding manner, the fourth reset spring (62) is connected between the wedge-shaped plugging plate (61) and the base frame II (2), the Z-shaped wedge frame (63) is connected on the base frame II (2) in a sliding manner, the fifth reset spring (64) is connected between the Z-shaped wedge frame (63) and the base frame II (2), the slotted wedge frame II (2) is connected with the slotted wedge frame (65) in a sliding manner, the slotting wedge-shaped frame (65) is in contact with the Z-shaped wedge-shaped frame (63), a sixth reset spring (66) is connected between the slotting wedge-shaped frame (65) and the second base frame (2), a rotating shaft (67) is connected to the slotting wedge-shaped frame (65) in a rotating mode, a swinging wedge block (68) is connected to the rotating shaft (67) in a rotating mode, the swinging wedge block (68) is in contact with the slotting wedge-shaped frame (65), second torsion springs (69) are symmetrically connected between the swinging wedge block (68) and the slotting wedge-shaped frame (65), the second base frame (2) is connected to the second rectangular slotting frame (610) in a connecting mode, the second rectangular slotting frame (610) is connected to the triangular wedge-shaped frame (611) in a sliding mode, a seventh reset spring (612) is connected between the triangular wedge-shaped frame (611) and the second rectangular slotting frame (610), a limiting wedge block (613) is connected to the triangular wedge-shaped frame (611) in a sliding mode, and an eighth reset spring (614) is connected between the limiting wedge-shaped block (613) and the triangular wedge-shaped frame (610).
5. The apparatus of claim 4 for oil recovery assisted oilfield wellhead valve replacement, wherein: the rotating mechanism (7) comprises an overrunning clutch (71), a second gear (72), a rectangular slotted frame III (73), a rack II (74) and a ninth return spring (75), the slotting connecting plate (3) is rotatably connected with an overrunning clutch (71), the overrunning clutch (71) is rotatably connected with a motor supporting block (41), the overrunning clutch (71) is fixedly connected with a supporting base plate (512), a second gear (72) is connected to the overrunning clutch (71), a third rectangular slotting frame (73) is connected to the top of the slotting connecting plate (3), a second rack (74) is slidably connected to the third rectangular slotting frame (73), the second rack (74) is meshed with the second gear (72), a ninth reset spring (75) is connected between the second rack (74) and the third rectangular slotting frame (73), the second rack (74) is in contact with a wedge-shaped plugging plate (61), and the second rack (74) is in contact with a triangular wedge-shaped frame (611).
6. The apparatus of claim 5 for oil recovery assisted oilfield wellhead valve replacement, wherein: the downward pressing sealing mechanism (8) comprises a rectangular slotting frame four (81), a special-shaped slotting frame (82), a special-shaped downward pressing rod (83), a special-shaped slotting rotating shaft seat (84), a tenth reset spring (85), an eleventh reset spring (86), a countersunk head shaft (87), a third gear (88), a rack three (89), a twelfth reset spring (810), a rotating disc (811), an extension rod (812), a slotting disc (813) and a rubber sealing ring (814), the top of the supporting base plate (512) is symmetrically connected with the rectangular slotting frame four (81), the top of the supporting base plate (512) is fixedly connected with the special-shaped slotting frame (82), the special-shaped slotting frame (82) is fixedly connected with the rectangular slotting frame four (81), the special-shaped downward pressing rod (83) is connected between the two rectangular slotting frame four (81) in a sliding manner, the special-shaped slotting frame (82) is connected with the special-shaped slotting frame seat (84) in a sliding manner, the special-shaped slotting rotating shaft seat (84) is connected with a special-shaped lower pressing rod (83) in a sliding mode, a tenth reset spring (85) is connected between the rectangular slotting frame four (81) and the special-shaped lower pressing rod (83), an eleventh reset spring (86) is connected between the special-shaped slotting rotating shaft seat (84) and the special-shaped slotting frame (82), the special-shaped slotting rotating shaft seat (84) is connected with a countersunk shaft (87) in a rotating mode, a third gear (88) is connected onto the countersunk shaft (87), the bottom end of the special-shaped lower pressing rod (83) is connected with a rack three (89), the rack three (89) is meshed with the third gear (88), a twelfth reset spring (810) is connected between the special-shaped lower pressing rod (83) and the special-shaped slotting rotating shaft seat (84), a rotating disk (811) is symmetrically connected onto the countersunk shaft (87), arc-shaped sliding chutes are distributed on the rotating disk (811), and extension rods (812) are distributed and connected onto the rotating disk (811) in a sliding mode, the extension rod (812) contacts with the counter sink shaft (87), the counter sink shaft (87) is connected with a pair of grooved discs (813) in a rotating mode, the grooved discs (813) are in sliding fit with the extension rod (812), the special-shaped grooved rotating shaft seat (84) is connected with a rubber sealing ring (814), the rubber sealing ring (814) is sleeved with the grooved discs (813), and the rubber sealing ring (814) contacts with the extension rod (812).
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| CN202110892984.9A CN113404462B (en) | 2021-08-04 | 2021-08-04 | Equipment for replacing wellhead valve of oil field assisted by petroleum exploitation |
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| CN202110892984.9A CN113404462B (en) | 2021-08-04 | 2021-08-04 | Equipment for replacing wellhead valve of oil field assisted by petroleum exploitation |
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| CN113404462B CN113404462B (en) | 2023-12-26 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4460039A (en) * | 1982-11-04 | 1984-07-17 | W-K-M Wellhead Systems, Inc. | Wellhead valve removal and installation tool |
| CN201083309Y (en) * | 2007-10-17 | 2008-07-09 | 邯郸钢铁股份有限公司 | Plugging device for exchanging valve |
| CN108890576A (en) * | 2018-07-30 | 2018-11-27 | 江苏金石机械集团有限公司 | A kind of method of replacement high pressure valve with pressure |
| CN112696168A (en) * | 2021-01-16 | 2021-04-23 | 江苏庆海石油机械有限公司 | Integral horizontal oil production wellhead assembly |
| CN113146523A (en) * | 2021-05-24 | 2021-07-23 | 重庆新泰机械有限责任公司 | Multifunctional oil testing and oil gas production wellhead device |
| CN113153217A (en) * | 2021-05-24 | 2021-07-23 | 重庆新泰机械有限责任公司 | Remote control-based oil testing and oil and gas production wellhead device |
-
2021
- 2021-08-04 CN CN202110892984.9A patent/CN113404462B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4460039A (en) * | 1982-11-04 | 1984-07-17 | W-K-M Wellhead Systems, Inc. | Wellhead valve removal and installation tool |
| CN201083309Y (en) * | 2007-10-17 | 2008-07-09 | 邯郸钢铁股份有限公司 | Plugging device for exchanging valve |
| CN108890576A (en) * | 2018-07-30 | 2018-11-27 | 江苏金石机械集团有限公司 | A kind of method of replacement high pressure valve with pressure |
| CN112696168A (en) * | 2021-01-16 | 2021-04-23 | 江苏庆海石油机械有限公司 | Integral horizontal oil production wellhead assembly |
| CN113146523A (en) * | 2021-05-24 | 2021-07-23 | 重庆新泰机械有限责任公司 | Multifunctional oil testing and oil gas production wellhead device |
| CN113153217A (en) * | 2021-05-24 | 2021-07-23 | 重庆新泰机械有限责任公司 | Remote control-based oil testing and oil and gas production wellhead device |
Non-Patent Citations (2)
| Title |
|---|
| 杨青松;张耀刚;吕江;刘露;: "阀门后盖带压钻孔更换主控阀门技术及其现场试验" * |
| 杨青松;张耀刚;吕江;刘露;: "阀门后盖带压钻孔更换主控阀门技术及其现场试验", 天然气工业 * |
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