CN104863538A - Setting blowout preventer device with pressed plug - Google Patents
Setting blowout preventer device with pressed plug Download PDFInfo
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- CN104863538A CN104863538A CN201410058640.8A CN201410058640A CN104863538A CN 104863538 A CN104863538 A CN 104863538A CN 201410058640 A CN201410058640 A CN 201410058640A CN 104863538 A CN104863538 A CN 104863538A
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- 230000002265 prevention Effects 0.000 claims description 7
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- 238000004146 energy storage Methods 0.000 description 1
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Abstract
The invention provides a setting blowout preventer device with pressed plug. The device comprises multifunctional lifting oil cylinders, a traveling slip, stand columns, oil cylinder fixing hoops, a wellhead casing and a wellhead four-way joint, wherein the four stand columns and the two multifunctional lifting oil cylinders are arranged on the periphery of the wellhead casing; top ends of the two multifunctional lifting oil cylinders are fixed respectively at two ends of a traveling cross beam arranged on the stand columns; a channel is formed in the middle of the traveling cross beam; the traveling slip is connected onto the channel of the traveling cross beam; lower ends of the two multifunctional lifting oil cylinders are fixed on the wellhead casing through the oil cylinder fixing hoops respectively; the wellhead four-way joint is arranged at the upper end of the wellhead casing; a blowout preventing assembly is arranged on the upper side of the four-way joint; the plug is arranged in the wellhead casing; the upper end of a connecting pipe of the plug penetrates out of the travelling slip after penetrating through the wellhead casing, and is connected to a hydraulic system through a high-pressure rubber pipe. The device has scientific and reasonable structural design and good blowout preventing effect, is convenient to use and popularize.
Description
Technical field
The invention belongs to technical field of petroleum extraction, relate to a kind of setting blowout preventer of band pressure blocking of oil underground work.
Background technology
Now, part treats overhaul water injection well (pressure is lower than 10MPa), without oil pipe below well head, cause using workover fluid to control effectively to wellbore pressure, if open flow opens well head, mine water can spray, cause well site, ground severe contamination, personal safety also can be subject to serious threat.
Because wellhead of water injection well valve latus rectum is less than ∮ 65mm, well head bottom is the sleeve pipe of internal diameter ∮ 124mm, cannot use original not blowout job device.This kind of water injection well carries out voltage-controlled combination not pressure release workover treatment to be needed to adopt the mode of oil pipe blocking to block sleeve pipe, and dismounting original annotation well mouth, installs not blowout job device.The setting blowout hookup of band pressure blanking plug combines extraordinary envelope card blanking plug can realize the construction of above-mentioned operation.
Summary of the invention
Technical scheme of the present invention is to provide the setting blowout preventer of a kind of band pressure blocking, solves the problems referred to above of prior art, and scientific structure design, rationally, easy to use, blowout prevention is effective, is convenient to promote.
Technical scheme of the present invention is:
The setting blowout preventer of a kind of band pressure blocking, comprise multifunctional lifting oil cylinder, traveling slip, column, oil cylinder fixing hoop, wellhead casing pipe, well head four-way, described wellhead casing pipe surrounding is provided with four vertical columns and two multifunctional lifting oil cylinders, described two multifunctional lifting oil cylinder tops are separately fixed at the travelling crossbeam two ends that column is provided with, passage is provided with in the middle part of travelling crossbeam, the passage of travelling crossbeam connects traveling slip, described two multifunctional lifting oil cylinder lower ends are fixed on wellhead casing pipe respectively by oil cylinder fixing hoop, described wellhead casing pipe upper end is provided with well head four-way, blowout prevention assembly is provided with on the upside of well head four-way, blanking plug is provided with in described wellhead casing pipe, the tube connector upper end of described blanking plug passes from traveling slip through after wellhead casing pipe, and is connected to hydraulic system by high-pressure rubber pipe.
Preferably, the concrete structure of described blowout prevention assembly is: be provided with hole cover on the upside of well head four-way, head valve is fixed on the upside of hole cover, described head valve upper end be tightly connected successively wellhead collar clamp, raise pipe nipple, double ram type preventer, tubular annular preventer, described rising pipe nipple is socketed on fixing zip, fixing zip is fixed on two multifunctional lifting oil cylinders, and the lower flange of described tubular annular preventer is provided with relief valve.
Preferably, the concrete structure of described blowout prevention assembly is: be provided with triple ram preventer on the upside of described well head four-way, described triple ram preventer top manually slips is connected to two multifunctional lifting oil cylinders, and triple ram preventer bottom manually slips is connected to two multifunctional lifting oil cylinders.
Preferably, on the upside of described well head four-way, fix triple ram preventer by flange, connect on the upside of triple ram preventer and raise pipe nipple, raise on the upside of pipe nipple and connect tubular annular preventer by crossover flange.
More preferably, described blanking plug comprised oil pipe, rubber seal cylinder, double-deck tube of skeleton, locking nut, cylinder tube, piston, return spring, lower house pipe, carriage release lever, pull bar, latch segment, connecting pin, lower connecting block, upper contiguous block, connect silk, tube connector, high-pressure rubber pipe, high-pressure rubber pipe is worn in described tube connector inside, tube connector and high-pressure rubber pipe bottom are by connecting silk and the docking of upper contiguous block, tube connector lower end is socketed in contiguous block outer wall, high-pressure rubber pipe is socketed in contiguous block top, described upper contiguous block lower end connected oil pipe, high-pressure rubber pipe is communicated by the through hole in upper contiguous block with mistake oil pipe upper end, described mistake outside oil pipe penetrates the rubber seal cylinder bringing lower skeleton, the double-deck tube of skeleton of rubber seal cylinder outer cover, described oil pipe lower end interlocking locking nut excessively, described rubber seal cylinder lower end connects cylinder tube, cylinder tube lower end connects lower house pipe, described cylinder tube inner sleeve is taken over a job plug, the piston rod overcoat of piston connects return spring, the piston-rod lower end of described piston connects carriage release lever, carriage release lever is socketed in lower house pipe, described carriage release lever lower end is arranged with pull bar, two pull bars are coupling respectively latch segment, two latch segment lower ends are coupling pull bar respectively, the pull bar of two latch segment lower ends connects lower connecting block.
More preferably, described hydraulic system comprises high-pressure rubber pipe, anti-shock pressure meter, high-pressure stop valve, snap joint, anti-shock pressure meter, hand-operated direction valve, reducing valve, unloading overflow valve, hydraulic pump, one way valve, hydraulic oil container, described high-pressure rubber pipe is provided with anti-shock pressure meter, high-pressure rubber pipe is connected to high-pressure stop valve, high-pressure stop valve is connected to snap joint, snap joint is connected to hand-operated direction valve by the pipeline with anti-shock pressure meter, hand-operated direction valve is connected to hydraulic pump by pipeline, the pipeline that described hand-operated direction valve leads to hydraulic pump is provided with reducing valve successively, unloading overflow valve, one way valve, hydraulic pump is connected to hydraulic oil container.
More preferably, described two multifunctional lifting oil cylinders are symmetricly set on wellhead casing pipe both sides and are fixed on column by oil cylinder link, and two multifunctional lifting oil cylinders are respectively equipped with connection zip.
More preferably, top rail is fixed in described column upper end, and column lower end is fixed on lower transverse beam platform, is provided with leading screw lifting column on the downside of described lower transverse beam platform, and upper mounting plate is fixed in described top rail upper end, and upper mounting plate surrounding is provided with guardrail; The described two multifunctional lifting oil cylinders be arranged side by side are arranged on the unsettled place, middle part of upper mounting plate.
More preferably, described traveling slip is fixed on the crossbeam that guardrail is provided with.
The beneficial effect of the setting blowout preventer of band pressure blocking of the present invention is: the structure design of blanking plug, and sealing effectiveness is good, achieves below 10MPa small diameter plug blocking major diameter sleeve pipe, belongs to domestic initiation; Blanking plug slips coordinates manual slip, and double insurance, effectively prevents on blanking plug and alter; Threaded multi-functional oil cylinder, both realized with pressure lower tubular column, can coordinate clamping tubing string again, effect is good; It is good that little latus rectum annular preventer and ram preventer cooperation remove blanking plug application; The a whole set of setting blowout preventer of blocking that removes with pressure configures and removes process rationally, safe and reliable; Special hydraulic control system, reliable and stable, be convenient to safeguard.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the setting blowout preventer of band pressure blocking described in the embodiment of the present invention;
Fig. 2 is another view of the setting blowout preventer of band pressure blocking described in the embodiment of the present invention;
Fig. 3 is the schematic diagram of manual slip of setting another state of blowout preventer of band pressure blocking described in the embodiment of the present invention;
Fig. 4 is the schematic diagram of oil cylinder fixing hoop of setting another state of blowout preventer of band pressure blocking described in the embodiment of the present invention;
Fig. 5 is the third state schematic diagram of the setting blowout preventer of band pressure blocking described in the embodiment of the present invention;
In figure: 1, head valve; 2, wellhead collar clamp; 3, pipe nipple is raised; 4, fixing zip; 5, double ram type preventer; 6, tubular annular preventer; 7, multifunctional lifting oil cylinder; 8, traveling slip; 9, guardrail; 10, staircase; 11, upper mounting plate; 12, top rail; 13, column; 14, zip is connected; 15, lower transverse beam; 16, leading screw lifting column; 17, relief valve; 18, travelling crossbeam; 19, oil cylinder link; 20, oil cylinder fixing hoop; 21, wellhead casing pipe; 22, well head four-way; 23, hole cover; 24, manual slip; 25, triple ram preventer; 26, manual slip; 27, crossover flange; 28, pipe nipple is raised.
Fig. 6 is the schematic diagram of blanking plug of the setting blowout preventer of band pressure blocking described in the embodiment of the present invention;
Fig. 7 is another view of blanking plug of the setting blowout preventer of band pressure blocking described in the embodiment of the present invention;
In figure: 101, cross oil pipe; 102, rubber seal cylinder; 103, double-deck tube of skeleton; 104, specialized nut; 105, cylinder tube; 106, piston; 107, return spring; 108, lower house pipe; 109, carriage release lever; 110, pull bar; 111, latch segment; 112, connecting pin; 113, lower connecting block; 114, upper contiguous block; 115, connect silk; 116, tube connector; 117, high-pressure rubber pipe.
Fig. 8 is the schematic diagram of hydraulic system of the setting blowout preventer of band pressure blocking described in the embodiment of the present invention;
In figure: 201, high-pressure rubber pipe; 202, anti-shock pressure meter; 203, high-pressure stop valve; 204, snap joint; 205, anti-shock pressure meter; 206, hand-operated direction valve; 207, reducing valve; 208, unloading overflow valve; 209, hydraulic pump; 210, one way valve; 211, hydraulic oil container.
Fig. 9 is the schematic diagram of hydraulic system of the setting blowout preventer of band pressure blocking described in the embodiment of the present invention.
In figure: 301, well pressure; 302, system pressure; 303, multiple directional control valve; 304, system energy storage pressure.
Detailed description of the invention
As shown in Figure 1, the setting blowout preventer of band pressure blocking described in the embodiment of the present invention, comprise head valve 1, raise pipe nipple 3, fixing zip 4, double ram type preventer 5, tubular annular preventer 6, multifunctional lifting oil cylinder 7, traveling slip 8, top rail 12, column 13, lower transverse beam 15, leading screw lifting column 16, travelling crossbeam 18, oil cylinder fixing hoop 20, wellhead casing pipe 21, well head four-way 22, hole cover 23, described wellhead casing pipe 21 surrounding is provided with four vertical columns 13, top rail 12 is fixed in column 13 upper end, column 13 lower end is fixed on lower transverse beam platform 15, leading screw lifting column 16 is provided with on the downside of described lower transverse beam platform 15, the height of column 13 is adjusted by adjusting screw lifting column 16, upper mounting plate 11 is fixed in described top rail 12 upper end, upper mounting plate 11 surrounding is provided with guardrail 9, upper mounting plate 11 side is provided with staircase 10, the unsettled place, middle part of described upper mounting plate 11 is provided with the two multifunctional lifting oil cylinders 7 be arranged side by side, two multifunctional lifting oil cylinders 7 are symmetricly set on wellhead casing pipe 21 both sides and are fixed on column 13 by oil cylinder link, two multifunctional lifting oil cylinders 7 are respectively equipped with and connect zip 14, connect zip 14 for connecting with working vehicle's shelf of job site, ensure the stability of the setting blowout preventer of band pressure blocking, described two multifunctional lifting oil cylinder 7 tops are separately fixed at travelling crossbeam 18 two ends, passage is provided with in the middle part of travelling crossbeam 18, the passage of travelling crossbeam 18 connects traveling slip 8, traveling slip 8 is fixed on the crossbeam that guardrail 9 is provided with, the tube connector 116 on blanking plug is clamped by traveling slip 8, two multi-functional oil cylinders 7 drive travelling crossbeam 18 to move up and down, then traveling slip card 8 and tube connector 116 can move up and down with travelling crossbeam 18, realize blanking plug G.I.H thus or propose well head, described two multifunctional lifting oil cylinder 7 lower ends are fixed on wellhead casing pipe 21 respectively by oil cylinder fixing hoop 20, described wellhead casing pipe 21 upper end is provided with well head four-way 22, hole cover 23 is provided with on the upside of well head four-way 22, head valve 1 is fixed on the upside of hole cover 23, described head valve 1 upper end is tightly connected wellhead collar clamp 2 successively, raise pipe nipple 3, double ram type preventer 5, tubular annular preventer 6, described rising pipe nipple 3 is socketed on fixing zip 4, fixing zip 4 is fixed on two multifunctional lifting oil cylinders 7, during use, under original state, there is pressure down-hole, head valve 1 is closed, all the other preventers are all in open mode, when blanking plug is above head valve, the slip flashboard of top tubular annular preventer 6 and double ram type preventer 5 can be closed, then head valve 1 is opened, open traveling slip 8 and make two multi-functional oil cylinders 7 go upward to top, close traveling slip 8, open the slip flashboard of double ram type preventer 5, two multi-functional oil cylinders 7 are descending, blanking plug is pressed in wellhead casing pipe 21, the lower flange of described tubular annular preventer 6 is provided with relief valve 17.
As shown in Figure 2,3, 4, the setting blowout preventer of band pressure blocking described in another state of the embodiment of the present invention, the present embodiment and the first difference implemented are: described wellhead casing pipe 21 surrounding is provided with four vertical columns 13, top rail 12 is fixed in column 13 upper end, column 13 lower end is fixed on lower transverse beam platform 15, leading screw lifting column 16 is provided with on the downside of described lower transverse beam platform 15, the height of column 13 is adjusted by adjusting screw lifting column 16, upper mounting plate 11 is fixed in described top rail 12 upper end, upper mounting plate 11 surrounding is provided with guardrail 9, and upper mounting plate 11 side is provided with staircase 10, the unsettled place, middle part of described upper mounting plate 11 is provided with the two multifunctional lifting oil cylinders 7 be arranged side by side, two multifunctional lifting oil cylinders 7 are symmetricly set on wellhead casing pipe 21 both sides and are fixed on column 13 by oil cylinder link, two multifunctional lifting oil cylinders 7 are respectively equipped with and connect zip 14, described two multifunctional lifting oil cylinder 7 lower ends are fixed on wellhead casing pipe 21 respectively by oil cylinder fixing hoop 20, described wellhead casing pipe 21 upper end is provided with well head four-way 22, triple ram preventer 25 is provided with on the upside of well head four-way 22, described triple ram preventer 25 top manually slips 24 is connected to two multifunctional lifting oil cylinders 7, triple ram preventer 25 bottom manually slips 26 is connected to two multifunctional lifting oil cylinders 7.
As shown in Figure 5, the setting blowout preventer of band pressure blocking described in the embodiment of the present invention third state, the present embodiment and the first difference implemented are: described wellhead casing pipe 21 surrounding is provided with four vertical columns 13, top rail 12 is fixed in column 13 upper end, column 13 lower end is fixed on lower transverse beam platform 15, leading screw lifting column 16 is provided with on the downside of described lower transverse beam platform 15, the height of column 13 is adjusted by adjusting screw lifting column 16, upper mounting plate 11 is fixed in described top rail 12 upper end, upper mounting plate 11 surrounding is provided with guardrail 9, and upper mounting plate 11 side is provided with staircase 10, the unsettled place, middle part of described upper mounting plate 11 is provided with the two multifunctional lifting oil cylinders 7 be arranged side by side, two multifunctional lifting oil cylinders 7 are symmetricly set on wellhead casing pipe 21 both sides and are fixed on column 13 by oil cylinder link, two multifunctional lifting oil cylinders 7 are respectively equipped with and connect zip 14, described two multifunctional lifting oil cylinder 7 lower ends are fixed on wellhead casing pipe 21 respectively by oil cylinder fixing hoop 20, described wellhead casing pipe 21 upper end is provided with well head four-way 22, triple ram preventer 25 is fixed by flange on the upside of well head four-way 22, connect on the upside of triple ram preventer 25 and raise pipe nipple 28, raise on the upside of pipe nipple 28 and connect tubular annular preventer 6 by crossover flange 27.
Described wellhead collar clamp 2 adopts 250 wellhead collar clamps.
Described rising pipe nipple 3 adopts 65-21 to raise pipe nipple.
Described double ram type preventer 5 adopts 2FZ7.6-21 double ram type preventer.
Described tubular annular preventer 6 adopts FH7.6-21B tubular annular preventer.
Described traveling slip 8 adopts FZ7.6-21 traveling slip.
Described triple ram preventer 25 adopts 3FZ18-21 triple ram preventer.
Described rising pipe nipple 28 adopts 18-21 to raise pipe nipple.
Blanking plug is provided with in wellhead casing pipe 21 described in above-described embodiment, as shown in Figures 6 and 7, described blanking plug comprised oil pipe 101, rubber seal cylinder 102, double-deck tube of skeleton 103, locking nut 104, cylinder tube 105, piston 106, return spring 107, lower house pipe 108, carriage release lever 109, pull bar 110, latch segment 111, connecting pin 112, lower connecting block 113, upper contiguous block 114, connect silk 115, tube connector 116, high-pressure rubber pipe 117, high-pressure rubber pipe 117 is worn in 1.9 cun of little oil pipe tube connector 116 inside of described 5 meters long, tube connector 116 and high-pressure rubber pipe 117 bottom are docked silk 115 and upper contiguous block 114 by connecting, tube connector 116 lower end is socketed in contiguous block 114 outer wall, high-pressure rubber pipe 117 is socketed in contiguous block 114 top, described upper contiguous block 114 lower end was threaded connection oil pipe 101, high-pressure rubber pipe 117 is communicated by the through hole in upper contiguous block 114 with mistake oil pipe 101 upper end, described mistake outside oil pipe 101 penetrates the rubber seal cylinder 102 bringing lower skeleton, the double-deck tube of skeleton 103 of rubber seal cylinder 102 outer cover, described oil pipe 201 lower end interlocking locking nut 104 excessively, described rubber seal cylinder 102 lower end is threaded connection cylinder tube 105, cylinder tube 105 lower end is threaded lower house pipe 108, described cylinder tube 105 inner sleeve is taken over a job plug 106, the piston rod overcoat of piston 106 connects return spring 107, the piston-rod lower end of described piston 106 is threaded carriage release lever 109, carriage release lever 109 is socketed in lower house pipe 108, and can within it move up and down, described carriage release lever 109 lower end is arranged with pull bar 110, two pull bars 110 are coupling respectively latch segment 111, two latch segment 111 lower ends are coupling pull bar 110 respectively, the pull bar 110 of two latch segment 111 lower ends connects lower connecting block 113 by locking pin 112.
Tube connector 116 upper end of described blanking plug passes from traveling slip 8 through after wellhead casing pipe 21, and is connected to hydraulic system by high-pressure rubber pipe 101.As shown in Figure 8, described hydraulic system comprises high-pressure rubber pipe 201, anti-shock pressure meter 202, high-pressure stop valve 203, snap joint 204, anti-shock pressure meter 205, hand-operated direction valve 206, reducing valve 207, unloading overflow valve 208, hydraulic pump 209, one way valve 210, hydraulic oil container 211, described high-pressure rubber pipe 201 is provided with anti-shock pressure meter 202, high-pressure rubber pipe 201 is connected to high-pressure stop valve 203, high-pressure stop valve 203 is connected to snap joint 204, snap joint 204 is by being connected to hand-operated direction valve 206 with the pipeline of anti-shock pressure meter 205, hand-operated direction valve 206 is connected to hydraulic pump 209 by pipeline, the pipeline that described hand-operated direction valve 206 leads to hydraulic pump 209 is provided with reducing valve 207 successively, unloading overflow valve 208, one way valve 210, hydraulic pump 209 is connected to hydraulic oil container 211.
Its work implementation process is:
One, install: understand and ask for this well interrelated data, determining to meet construction requirement.Before in-site installation, clear up around reply well head, close head valve 1, open head valve 1 top plug and clip, the setting blowout preventer of vertical lifting elevated band pressure blocking, aims at well head by a whole set of apparatus for work, conditioning equipment height, oil cylinder 7 bottom and wellhead casing pipe 21 outer wall are clamped by oil cylinder fixing hoop 20, utilizes wire rope to carry out firmly package unit four column 13, and by four cable pull adjustment by alignment well head center, working rig center.
Two, hydraulic control system debugging:
1) check that in accumulator, nitrogen pressure ensures 5.5-6.5MPa, in fuel tank between hydraulic oil filling to bound.The hydraulic oil trade mark is selected: summer: L-HM46# antiwear hydraulic oil; The low solidifying antiwear hydraulic oil of winter: L-HV32#.
2) connecting fluid pressure pipeline, starts to debug hydraulic-pressure control apparatus.
3) total relief valve of system is opened, primer fluid press pump, dry run, check that whether hydraulic pump is normal; Close total relief valve, check the unloading overflow valve pressure of adjustment outlet of plunger pump on request, whether normally to check pump and hydraulic control system running, with or without heating, abnormal sound and Seepage.
4) hydraulic control system inspection operates each reversal valve handle one by one after working well, check that whether its control object action is correct, pipeline and junction (are noted: when closing half envelope ram block with or without Seepage, guarantee that ram position has the pipe of corresponding size, otherwise easily damage gate rubber core, to guarantee that ram position does not have pipe when closing blind rams or shear ram, otherwise flashboard and pipe can be damaged); Reversal valve respectively operates 3 times, gets rid of the air in pipeline and fluid cylinder.
5) open accumulator stop valve, in accumulator, replenish high pressure liquid force feed, check that whether accumulator is normal.
Three, lower blocking shutoff:
1) " little oil pipe tube connector, down to head valve 1 top blanking plug to be connected to special 1.9.
2) annular preventer 6 is closed, traveling slip 8 is gone upward to top, close traveling slip 8, open head valve 1, traveling slip 8 is descending, by in extraordinary blanking plug press-in wellhead casing pipe 21, close stationary slip on double ram type preventer 5, open traveling slip 8, oil cylinder 7 is up, repeat above action, guarantee that blanking plug enters in sleeve pipe.
3) according to well pressure situation, setting blanking plug pressure (being progressively forced into higher than 1-2MPa), closes blanking plug stop valve, open annular preventer lower flange relief valve 17, current stop, and illustrate and block well head, keeping 20 minutes, as without revealing, next step operation can be carried out.
Four, well head is removed:
Now, double ram type preventer 5 half envelope and slips are in closed condition, remove annular preventer 6, travelling crossbeam 18 and traveling slip 8, manual slip 24 is installed on oil cylinder 7 top, remove hole cover bolt, open double ram type preventer 5 half envelope and slips, carry in double ram type preventer 5 and upper part, manual slip 26 is installed in double ram type preventer 5 bottom, remove top manual slip 24, remove well head double ram type preventer 6 and with upper part.
Five, setting triple ram preventer:
1) front and back foot rest is removed, by triple ram preventer 25 down to lower manual slip 26 top.
2) manual slip 24 is installed on top.
3) bottom manual slip 26 is removed.
4) by triple ram preventer 25 on the flange installing well head four-way.
5) hydraulic control lines is installed, closes triple ram preventer 25 half envelope and slips, remove top manual slip 24.
Six, blanking plug is proposed:
1) triple ram preventer 25 top is installed successively and is raised pipe nipple 28, crossover flange 27, annular preventer 6, travelling crossbeam 8, traveling slip 8.
2) annular preventer 6 is closed successively, traveling slip 8, open triple ram preventer 25 half envelope, slips, blanking plug pressure release, traveling slip 8 goes upward to top, and close triple ram preventer 25 slips, oil cylinder 7 is descending, repeat the above step of falling blanking plug, blanking plug is directed at more than the full envelope of triple ram preventer 25.
3) close triple ram preventer 25 entirely to seal, relief valve 17 pressure release is opened on top, drives annular preventer 6, traveling slip 8, proposes blanking plug, removes band pressure blocking apparatus for work, fulfils assignment.
Above content is the further description done the present invention in conjunction with concrete preferred embodiment, and being convenient to these those skilled in the art can understand and apply the invention, and can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, some simple deduction or replace can also be made without departing from the inventive concept of the premise, and need not through performing creative labour.Therefore, those skilled in the art are according to announcement of the present invention, and the simple modifications made the present invention all should within protection scope of the present invention.
Claims (9)
1. the setting blowout preventer of band pressure blocking, it is characterized in that: comprise multifunctional lifting oil cylinder, traveling slip, column, oil cylinder fixing hoop, wellhead casing pipe, well head four-way, described wellhead casing pipe surrounding is provided with four vertical columns and two multifunctional lifting oil cylinders, described two multifunctional lifting oil cylinder tops are separately fixed at the travelling crossbeam two ends that column is provided with, passage is provided with in the middle part of travelling crossbeam, the passage of travelling crossbeam connects traveling slip, described two multifunctional lifting oil cylinder lower ends are fixed on wellhead casing pipe respectively by oil cylinder fixing hoop, described wellhead casing pipe upper end is provided with well head four-way, blowout prevention assembly is provided with on the upside of well head four-way, blanking plug is provided with in described wellhead casing pipe, the tube connector upper end of described blanking plug passes from traveling slip through after wellhead casing pipe, and is connected to hydraulic system by high-pressure rubber pipe.
2. the setting blowout preventer of band pressure blocking according to claim 1, it is characterized in that: the concrete structure of described blowout prevention assembly is: be provided with hole cover on the upside of well head four-way, head valve is fixed on the upside of hole cover, described head valve upper end be tightly connected successively wellhead collar clamp, raise pipe nipple, double ram type preventer, tubular annular preventer, described rising pipe nipple is socketed on fixing zip, fixing zip is fixed on two multifunctional lifting oil cylinders, and the lower flange of described tubular annular preventer is provided with relief valve.
3. the setting blowout preventer of band pressure blocking according to claim 1, it is characterized in that: the concrete structure of described blowout prevention assembly is: on the upside of described well head four-way, be provided with triple ram preventer, described triple ram preventer top manually slips is connected to two multifunctional lifting oil cylinders, and triple ram preventer bottom manually slips is connected to two multifunctional lifting oil cylinders.
4. the setting blowout preventer of band pressure blocking according to claim 1, it is characterized in that: on the upside of described well head four-way, fix triple ram preventer by flange, connect on the upside of triple ram preventer and raise pipe nipple, raise on the upside of pipe nipple and connect tubular annular preventer by crossover flange.
5. the setting blowout preventer of band pressure blocking according to claim 1 or 2 or 3 or 4, is characterized in that: described blanking plug comprised oil pipe, rubber seal cylinder, double-deck tube of skeleton, locking nut, cylinder tube, piston, return spring, lower house pipe, carriage release lever, pull bar, latch segment, connecting pin, lower connecting block, upper contiguous block, connect silk, tube connector, high-pressure rubber pipe, high-pressure rubber pipe is worn in described tube connector inside, tube connector and high-pressure rubber pipe bottom are by connecting silk and the docking of upper contiguous block, tube connector lower end is socketed in contiguous block outer wall, high-pressure rubber pipe is socketed in contiguous block top, described upper contiguous block lower end connected oil pipe, high-pressure rubber pipe is communicated by the through hole in upper contiguous block with mistake oil pipe upper end, described mistake outside oil pipe penetrates the rubber seal cylinder bringing lower skeleton, the double-deck tube of skeleton of rubber seal cylinder outer cover, described oil pipe lower end interlocking locking nut excessively, described rubber seal cylinder lower end connects cylinder tube, cylinder tube lower end connects lower house pipe, described cylinder tube inner sleeve is taken over a job plug, the piston rod overcoat of piston connects return spring, the piston-rod lower end of described piston connects carriage release lever, carriage release lever is socketed in lower house pipe, described carriage release lever lower end is arranged with pull bar, two pull bars are coupling respectively latch segment, two latch segment lower ends are coupling pull bar respectively, the pull bar of two latch segment lower ends connects lower connecting block.
6. the setting blowout preventer of band pressure blocking according to claim 1 or 2 or 3 or 4, it is characterized in that: described hydraulic system comprises high-pressure rubber pipe, anti-shock pressure meter, high-pressure stop valve, snap joint, anti-shock pressure meter, hand-operated direction valve, reducing valve, unloading overflow valve, hydraulic pump, one way valve, hydraulic oil container, described high-pressure rubber pipe is provided with anti-shock pressure meter, high-pressure rubber pipe is connected to high-pressure stop valve, high-pressure stop valve is connected to snap joint, snap joint is connected to hand-operated direction valve by the pipeline with anti-shock pressure meter, hand-operated direction valve is connected to hydraulic pump by pipeline, the pipeline that described hand-operated direction valve leads to hydraulic pump is provided with reducing valve successively, unloading overflow valve, one way valve, hydraulic pump is connected to hydraulic oil container.
7. the setting blowout preventer of band pressure blocking according to claim 1 or 2 or 3 or 4, it is characterized in that: described two multifunctional lifting oil cylinders are symmetricly set on wellhead casing pipe both sides and are fixed on column by oil cylinder link, and two multifunctional lifting oil cylinders are respectively equipped with connection zip.
8. the setting blowout preventer of band pressure blocking according to claim 1 or 2 or 3 or 4, it is characterized in that: top rail is fixed in described column upper end, column lower end is fixed on lower transverse beam platform, leading screw lifting column is provided with on the downside of described lower transverse beam platform, upper mounting plate is fixed in described top rail upper end, and upper mounting plate surrounding is provided with guardrail; The described two multifunctional lifting oil cylinders be arranged side by side are arranged on the unsettled place, middle part of upper mounting plate.
9. the setting blowout preventer of band pressure blocking according to claim 1 or 2 or 3 or 4, is characterized in that: described traveling slip is fixed on the crossbeam that guardrail is provided with.
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| CN201410058640.8A CN104863538B (en) | 2014-02-21 | 2014-02-21 | Band pressure blocks setting blowout preventer |
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| CN104863538A true CN104863538A (en) | 2015-08-26 |
| CN104863538B CN104863538B (en) | 2017-09-15 |
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| CN105971547A (en) * | 2016-06-25 | 2016-09-28 | 中国石油大学(华东) | Blowout rescue device and method for clustered well head of marine drilling platform |
| CN108489722A (en) * | 2018-04-03 | 2018-09-04 | 盐城市大冈石油工具厂有限责任公司 | The multi-functional load test device of preventer |
| CN110905436A (en) * | 2019-12-24 | 2020-03-24 | 盐城市崇达石化机械有限公司 | Lifting type lubricator device |
| CN111206905A (en) * | 2018-11-21 | 2020-05-29 | 中国石油天然气股份有限公司 | Well head braced system |
| CN111441737A (en) * | 2020-04-15 | 2020-07-24 | 青岛理工大学 | Double-rotary-barrel double-plunger sliding key type shaft-plug core three-in-one blowout preventer |
| CN113090215A (en) * | 2021-04-07 | 2021-07-09 | 西安宇星石油机械新技术开发有限公司 | Gas well casing pipe non-releasing pressure blocking wellhead replacing device |
| CN120291827A (en) * | 2025-05-23 | 2025-07-11 | 盐城市琪航石油机械有限公司 | A quick-install wellhead device with multi-way valve |
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| CN111441737B (en) * | 2020-04-15 | 2022-02-01 | 青岛理工大学 | Double-rotary-barrel double-plunger sliding key type shaft-plug core three-in-one blowout preventer |
| CN111441737A (en) * | 2020-04-15 | 2020-07-24 | 青岛理工大学 | Double-rotary-barrel double-plunger sliding key type shaft-plug core three-in-one blowout preventer |
| CN113090215A (en) * | 2021-04-07 | 2021-07-09 | 西安宇星石油机械新技术开发有限公司 | Gas well casing pipe non-releasing pressure blocking wellhead replacing device |
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| CN120291827A (en) * | 2025-05-23 | 2025-07-11 | 盐城市琪航石油机械有限公司 | A quick-install wellhead device with multi-way valve |
| CN120291827B (en) * | 2025-05-23 | 2026-01-20 | 盐城市琪航石油机械有限公司 | A quick-installation wellhead device for installing a multi-way valve |
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