CN204646196U - hydraulic delay priming device - Google Patents
hydraulic delay priming device Download PDFInfo
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- CN204646196U CN204646196U CN201520242045.XU CN201520242045U CN204646196U CN 204646196 U CN204646196 U CN 204646196U CN 201520242045 U CN201520242045 U CN 201520242045U CN 204646196 U CN204646196 U CN 204646196U
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Abstract
The utility model discloses a kind of hydraulic delay priming device, comprise time delay assembly, oil cylinder mechanism, shearing ignition module and initiator, shear ignition module comprise shearing component and clash into ignition part, when pressure is greater than the shear force that shearing component upper end arranges, the piston of oil cylinder mechanism is sheared assembly and upwardly drives hydraulic medium oil to enter tail by the annular gap of time delay assembly to block up; When shearing component moves to desired location, the percussion piston broken and unlock and clash into ignition part is followed closely in the shearing of shearing component and piston bush, and percussion piston moves downward and coordinates with initiator.The utility model can reliably excite under external pressure, and after time delay after a while, reliable ignition next stage perforating gun.
Description
Technical field
The utility model relates to a kind of priming device being realized hydraulic delay by annular gap stream principle, belongs to Oil/gas Well TCP oil tube transmission perforation field.
Background technology
In recent years, along with the petroleum resources in coastal waters and shallow sea reduces gradually, output reduces day by day, and the exploration of oil and natural gas is progressively to deep-sea area extension.The petroleum resources amount of containing that deepwater regions is enriched make deep water change into into our times marine oil and gas exploitation inevitable development trend, be also the grand strategy target of Chinese Sea petroleum development.Deep water test jobs is many more than conventional offshore oil and gas field operation complexity.A large amount of gas hydrates are extensively dispersed with in the ocean of the depth of water more than 300 meters, gas hydrates are closely related with the production in deep water hydrocarbon field, and the blocking of the pit shaft that hydrate causes, treating apparatus and feed-line is the thorny problem of production of hydrocarbons and transport always.So when carrying out deep water test jobs, need supporting a large amount of equipment to carry out monitoring and the process of hydrate, this enters under just causing tubing string and trips out all very complicated.The operating cost of deep water platform is very high in addition, so how to ensure that the reliability of perforating test operation has become the matter of utmost importance of deep water test jobs.
Priming device, for receiving external pressure or electric power signal, ignites perforating gun.Can priming device be ignited perforating gun and can directly affect when whether subjob is successful.And in order to realize underbalance perforating, operation wishes that priming device can after receiving external pressure signal often, the time delay buffering through after a while ignites perforating gun again.Therefore, at home and abroad demand is large for delayed ignition device.
Tradition delayed ignition device have employed extension gunpowder and realizes delay function, and such as, the disclosed dropped initiation device of China Patent Publication No. " 102003164A ", publication date is 2011-04-06.But the subject matter that such priming device exists is, because gunpowder velocity of explosion is large, and be subject to the restriction of product size, such delayed ignition device delay time is shorter.And priming system character is unstable, there is the risk of disconnected combustion or preinitiation.
Summary of the invention
The purpose of this utility model is the problems referred to above overcoming prior art existence, provides a kind of hydraulic delay priming device.The utility model can reliably excite under external pressure, and after time delay after a while, reliable ignition next stage perforating gun.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of hydraulic delay priming device, it is characterized in that: comprise time delay assembly, oil cylinder mechanism, shearing ignition module and initiator, described time delay assembly comprises that tail is stifled, time delay valve seat, time-delay valve and time delay housing, tail is stifled to be fixedly connected with time delay housing seal, and time delay valve seat is arranged in time delay housing, and time-delay valve is arranged in time delay valve seat, annular gap is formed between time-delay valve and time delay valve base inner wall, tail blocks up one end and closes, other end opening, and openend is positioned at time delay housing; Described oil cylinder mechanism comprises oil cylinder and piston, is provided with hydraulic medium oil in the oil cylinder of piston upper end, and lower end coordinates with shearing ignition module, and the cylinder cavity being provided with hydraulic medium oil is communicated with annular gap, and oil cylinder is connected with time delay housing; Described shearing ignition module comprises shearing component and percussion piston, percussion piston is arranged in piston bush by position-limit mechanism, shearing component upper end is fixing and spacing in oil cylinder by shearing nail, lower end is connected with piston bush by shearing nail, the press belt that shearing component is pressurizeed by well head is dynamic to move upward, when pressure is greater than the shear force of shearing component upper end, shearing component drives piston upwards, and hydraulic medium oil enters tail by annular gap and blocks up; When shearing component moves to desired location, break shearing that shearing component lower end is connected with piston bush and follow closely and unlock percussion piston, percussion piston moves downward and coordinates with initiator.
Described time delay assembly also comprises position-arresting disk, position-arresting disk to be arranged in time delay housing and time delay valve seat and tail stifled between, position-arresting disk offers the opening be communicated with annular gap.
Be provided with dividing plate in described time delay housing, throughly on dividing plate be provided with the opening with time delay valve seat inner space, time delay valve base sealing to be fixedly installed in time delay housing and spacing by dividing plate.
Described oil cylinder one end is fixedly connected with time delay housing seal, and the other end and transition joint one end are sealedly and fixedly connected, and the transition joint other end and lower contact are sealedly and fixedly connected.
The described cylinder cavity end being provided with hydraulic medium oil is provided with gas pressure relief slot, and piston is provided with relief hole, and the internal diameter of gas pressure relief slot is greater than the external diameter of piston, and when in piston movement to gas pressure relief slot, relief hole is communicated with gas pressure relief slot.
Described position-limit mechanism comprises the cannelure that the steel-ball groove that piston bush is arranged, spacing steel ball and percussion piston are arranged, and time spacing, spacing steel ball is arranged in steel-ball groove and cannelure.
Described shearing component comprises shear sleeve, core bar, gag lever post and position-limiting drum, core bar upper end to be fixedly connected with shear sleeve by shear pin and spacing in oil cylinder, lower end is sealed end and is fixedly connected with gag lever post one end, the gag lever post other end is positive stop end and slides spacing in position-limiting drum, position-limiting drum is connected by shear screw with piston bush upper end, piston bush lower end is fixed by the limited step arranged in lower contact, when shear screw is cut off, position-limiting drum is separated with piston bush, and spacing steel ball unlocks percussion piston under pressure.
The sealed end of described core bar coordinates with transition joint inner wall sealing, transition joint is provided with entrance pressure hole, acts on core bar sealed end by the pressure in entrance pressure hole.
Described initiator to be fixedly installed in lower contact and to be positioned at below percussion piston, and the percussion piston after unblock down moves and clashes into ignition initiator under pressure promotes.Described initiator is fixed in lower contact by plug screw.
Limited step is provided with in described transition joint, position-limiting drum is arranged in transition joint, position-limiting drum upper end coordinates with the positive stop end of gag lever post, position-limiting drum lower ending opening, openend is connected by shear screw with piston bush, when the positive stop end of gag lever post moves up to position-limiting drum upper end, gag lever post drives position-limiting drum to move upward and breaks shear screw.
Employing the utility model has the advantage of:
1, the utility model reliability of detonating is high, and for gunpowder time delay, the operating principle of hydraulic delay makes this product disconnected combustion can not occur and cause the phenomenon of perforation failure.
2, the priming system that the utility model uses is only initiator, and Product Safety is good.
3, the utility model oil cylinder end face is designed with end face seal, and piston and oil cylinder are designed with pressure relief, and delay time is highly stable.
4, each part of the utility model all have employed seal with O ring, good pressure-resistant performance.
5, the utility model employs position-limiting drum and gag lever post routing motion structure, shortens the stroke that position limiting structure and steel ball rub, and structure is more flexible, reduces the impact of frictional force on delay time, makes delay time more accurate.
6, the utility model regulates product delay time by regulating the methods such as time-delay valve length, fit clearance, cylinder sizes, and delay time adjustable extent is large.
7, the hydraulic oil that the utility model uses is 201 dimethicones, this silicone oil be a kind of colourless, tasteless, safety non-toxic can flowable transparent oily liquids, can not environment pollution be caused.
8, the utility model appearance and size is little, and external diameter is that φ 45(is adjustable), two pieces hydraulic delay priming device concurrent assembly can be become two fire point duration and degree of heating, improve product work reliability further.
9, when the utility model uses, only silicone oil need be filled it up with at use scene, and the shear pin quantity that selection will use, operate comparatively simple.
10, due to oil-gas field development deep water gradually, the reliability requirement of operation is more and more higher, the utility model does not use extension gunpowder, and decrease priming system use amount, operational reliability improves greatly, can also realize the delay time more grown simultaneously.
To sum up, the utility model have employed the detonation mode that ripe steel ball unlocks impact initiation, and igniting reliability is high, easy to use.In addition, the time delay principle of annular gap overcurrent decreases the use amount of priming system, improves operational reliability.Meanwhile, hydraulic delay delay time is reliable, and adjustable extent is large, can realize the time delay of long period, solve the problem that traditional delayed ignition class device delay time falls short of.Application of the present utility model will make deepwater work reliably convenient, for the exploration and development of oil is made contributions.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model time delay modular construction schematic diagram;
Fig. 3 is that the utility model shears ignition module structural representation;
Fig. 4 is the utility model hydraulic delay priming device fundamental diagram;
Be labeled as in figure: 1, initiator, 2, tail blocks up, 3, time delay valve seat, 4, time-delay valve, 5, time delay housing, 6, oil cylinder, 7, piston, 8, percussion piston, 9, piston bush, 10, position-arresting disk, 11, transition joint, 12, lower contact, 13, spacing steel ball, 14, core bar, 15, gag lever post, 16, position-limiting drum, 17, shear pin, 18, shear screw, 19, entrance pressure hole, 20, plug screw, 21, shear sleeve, 22, holding screw.
Detailed description of the invention
Embodiment 1
A kind of hydraulic delay priming device, comprise time delay assembly, oil cylinder mechanism, shearing ignition module and initiator 1, described time delay assembly comprises that tail is stifled 2, time delay valve seat 3, time-delay valve 4 and time delay housing 5, tail stifled 2 is sealedly and fixedly connected with time delay housing 5, and time delay valve seat 3 is arranged in time delay housing 5, and time-delay valve 4 is arranged in time delay valve seat 3, annular gap is formed between time-delay valve 4 and time delay valve seat 3 inwall, stifled 2 one end of tail are closed, other end opening, and openend is positioned at time delay housing 5; Described oil cylinder mechanism comprises oil cylinder 6 and piston 7, is provided with hydraulic medium oil in the oil cylinder 6 of piston 7 upper end, and lower end coordinates with shearing ignition module, and oil cylinder 6 inner chamber being provided with hydraulic medium oil is communicated with annular gap, and oil cylinder 6 is connected with time delay housing 5; Described shearing ignition module comprises shearing component and percussion piston 8, percussion piston 8 is arranged in piston bush 9 by position-limit mechanism, shearing component upper end is fixing and spacing in oil cylinder 6 by shearing nail, lower end is connected with piston bush 9 by shearing nail, the press belt that shearing component is pressurizeed by well head is dynamic to move upward, when pressure is greater than the shear force of shearing component upper end, shearing component drives piston 7 to move upward, and hydraulic medium oil enters tail stifled 2 by annular gap; When shearing component moves to desired location, break shearing that shearing component lower end is connected with piston bush 9 and follow closely and unlock percussion piston 8, percussion piston 8 moves downward and coordinates with initiator 1.
In the present embodiment, described time delay assembly also comprises position-arresting disk 10, and position-arresting disk 10 to be arranged in time delay housing 5 and between time delay valve seat 3 and tail stifled 2, position-arresting disk 10 to offer the opening be communicated with annular gap.
In the present embodiment, be provided with dividing plate in described time delay housing 5, throughly on dividing plate be provided with the opening with time delay valve seat 3 inner space, the sealing of time delay valve seat 3 to be fixedly installed in time delay housing 5 and spacing by dividing plate.
In the present embodiment, described oil cylinder 6 one end and time delay housing 5 are sealedly and fixedly connected, and the other end and transition joint 11 one end are sealedly and fixedly connected, and transition joint 11 other end and lower contact 12 are sealedly and fixedly connected;
In the present embodiment, described in be provided with hydraulic medium oil cylinder cavity end be provided with gas pressure relief slot, piston 7 is provided with relief hole, and the internal diameter of gas pressure relief slot is greater than the external diameter of piston, and when piston 7 moves in gas pressure relief slot, relief hole is communicated with gas pressure relief slot.
In the present embodiment, described position-limit mechanism comprises the steel-ball groove that piston bush 9 is arranged, the cannelure that spacing steel ball 13 and percussion piston 8 are arranged, and time spacing, spacing steel ball 13 is arranged in steel-ball groove and cannelure.
In the present embodiment, described shearing component comprises shear sleeve 21, core bar 14, gag lever post 15 and position-limiting drum 16, core bar 14 upper end to be fixedly connected with shear sleeve 21 by shear pin 17 and spacing in oil cylinder 6, when shearing component moves upward, shear sleeve 21 coordinates with in-oil cylinder limited step, cut off shear pin 17, core bar 14 lower end is sealed end and is fixedly connected with gag lever post 15 one end, gag lever post 15 other end is positive stop end and slides spacing in position-limiting drum 16, position-limiting drum 16 is connected by shear screw 18 with piston bush 9 upper end, piston bush 9 lower end is fixed by the limited step arranged in lower contact 12, when shear screw 18 is cut off, position-limiting drum 16 is separated with piston bush 9, spacing steel ball 13 unlocks percussion piston 8 under pressure.
In the present embodiment, the sealed end of described core bar 14 coordinates with transition joint 11 inner wall sealing, transition joint 11 is provided with entrance pressure hole 19, acts on core bar 14 sealed end by the pressure in entrance pressure hole 19.
In the present embodiment, described initiator 1 to be fixedly installed in lower contact 12 and to be positioned at below percussion piston 8, after described position-limiting drum 16 is deviate from, pressure promotes percussion piston 8 can release spacing steel ball 13, thus unlocking percussion piston 8, the percussion piston 8 after unblock down moves and clashes into and ignites initiator 1 under pressure promotes.Described initiator 1 is fixed in lower contact 12 by plug screw 20.
In the present embodiment, limited step is provided with in described transition joint 11, position-limiting drum 16 is arranged in transition joint 11, position-limiting drum 16 upper end coordinates with the positive stop end of gag lever post 15, position-limiting drum 16 lower ending opening, openend is connected by shear screw 18 with piston bush 9, when the positive stop end of gag lever post 15 moves up to position-limiting drum 16 upper end, gag lever post 15 drives position-limiting drum 16 upwards to break shear screw 18, finally moves up to the limited step place in transition joint 11.
This device is started by well head pressurization and ignited perforating gun after time delay after a while.Device have employed annular gap overcurrent principle and realizes long time delay, have employed the principle of position-limiting drum and gag lever post cooperation control stroke, makes delay time more accurate, and selected high viscosity dimethicone to increase delay time.Device is connected to perforating gun upper end or lower end, start-up study function after being forced into preset pressure value, gag lever post up moves under pressure promotes, piston press silicone oil enters tail through annular gap and blocks up cavity, gag lever post moves and breaks shear screw after a segment distance and after pulling position-limiting drum to continue up to move to default time delay stroke, position-limiting drum motion puts in place and discharges steel ball, and steel ball unlocks percussion piston.After this, percussion piston clashes into and initiator in apparatus to cause bursting under hydraulic drive, thus ignites subordinate's detonating primer and perforating gun.
Pressure excites, hydraulic delay detonates gun perforation process in the utility model employing, and reliability of detonating is high, applicability is wide, delay time is long.Particularly can solve the problem that common extension gunpowder class delayed ignition device delay time is short, sufficient operating time surplus can be provided for aboveground operation.The priming system of this device use is simultaneously few, adds operational reliability.
Embodiment 2
A kind of hydraulic delay priming device, comprises time delay assembly, shears ignition module, initiator 1, also comprises the oil cylinder 6 and the transition joint 11 that connect time delay assembly and shear ignition module.Oil cylinder 6 is built with dimethicone and the piston promoting silicone oil motion.Plug screw 20 is for compressing initiator 1.Each part all have employed and is threaded and seal with O ring.
Oil cylinder 6 indoor design has gas pressure relief slot, and piston 7 is designed with side and end face relief hole, and piston 7 moves to after in gas pressure relief slot, and silicone oil pressure energy releases rapidly.The stroke of piston 7 setting in motion to pressure release and the size adjustable of piston 7 and oil cylinder 6, thus realize different delay times.Transition joint 11 has entrance pressure hole 19, and well head is forced through entrance pressure hole 19 and enters and act on core bar 14.
Time delay assembly comprises that tail blocks up 2, the O shape circle of position-arresting disk 10, time delay housing 5, time-delay valve 4 and time delay valve seat 3 and sealing.Time-delay valve 4 is contained in time delay valve seat 3 endoporus, realizes annular gap stream by the fit clearance of time-delay valve 4 and time delay valve seat 3.The annular engagement gap of two parts and adjustable length, thus realize different delay times.
Shear ignition module mainly comprise shearing component and clash into ignition part.Shearing component is made up of shear sleeve 21, core bar 14, shear pin 17, holding screw 22, gag lever post 15, position-limiting drum 16, shear screw 18.Shear pin 17 is contained in the mating holes of shear sleeve 21 and core bar 14.Gag lever post 15 is connected to core bar 14 one end and uses holding screw 22 spacing.Position-limiting drum 26 is enclosed within gag lever post 15, and is fixed on the piston bush 9 in shock ignition part by shear screw 18.Core bar 14 is designed with seal groove, and adopts seal with O ring.
Clash into ignition part to be made up of piston bush 9, spacing steel ball 13, percussion piston 8, lower contact 12 and initiator 1.Spacing steel ball 13 is contained in the steel ball groove of percussion piston 8 and piston bush 9 cooperation, and outer end dress position-limiting drum 16 locks.After position-limiting drum 16 is deviate from, pressure promotes percussion piston 8 can release spacing steel ball 13, thus unlocks percussion piston.The movement travel of percussion piston 8 can make initiator 1 under lower pressure effect by reliable impact initiation.
Shear pin need reach certain pressure and just can cut off, and can set up initial pressure, make delay time reliable and stable in transition joint and oil cylinder.Shear pin is high accuracy shear pin, reliably can cut off under the shear pressure of design.
Utility model works principle: well head pressurizes, and pressure is entered by the entrance pressure hole 19 of oil cylinder and acts on core bar 14 sealing surface.When pressure is greater than shear pin 17 shear force of prepackage, shear pin 17 is cut off.Core bar 14 drives gag lever post 15 up to move and promotes dimethicone and enters stifled 2 cavitys of tail through the annular gap time-delay valve 4 and time delay valve seat 3.Gag lever post 15 moves and breaks shear screw 18 after a segment distance and drive position-limiting drum 16 to continue up to move.After motion puts in place, spacing steel ball 13 will be extruded under pressure thus unlock percussion piston 8 in the groove of piston bush 9.Percussion piston 8 after unblock down moves and clashes into and ignites initiator 1 under pressure promotes, and finally ignites follow-up propagation of explosion assembly and perforating gun.
Claims (10)
1. a hydraulic delay priming device, it is characterized in that: comprise time delay assembly, oil cylinder mechanism, shear ignition module and initiator (1), described time delay assembly comprises tail stifled (2), time delay valve seat (3), time-delay valve (4) and time delay housing (5), tail stifled (2) is sealedly and fixedly connected with time delay housing (5), time delay valve seat (3) is arranged in time delay housing (5), time-delay valve (4) is arranged in time delay valve seat (3), annular gap is formed between time-delay valve (4) and time delay valve seat (3) inwall, stifled (2) one end of tail is closed, other end opening, openend is positioned at time delay housing (5), described oil cylinder mechanism comprises oil cylinder (6) and piston (7), hydraulic medium oil is provided with in the oil cylinder (6) of piston (7) upper end, lower end coordinates with shearing ignition module, and oil cylinder (6) inner chamber being provided with hydraulic medium oil is communicated with annular gap, and oil cylinder (6) is connected with time delay housing (5), described shearing ignition module comprises shearing component and percussion piston (8), percussion piston (8) is arranged in piston bush (9) by position-limit mechanism, shearing component upper end is fixing and spacing in oil cylinder (6) by shearing nail, lower end is connected with piston bush (9) by shearing nail, the press belt that shearing component is pressurizeed by well head is dynamic to move upward, when pressure is greater than the shear force of shearing component upper end, shearing component drives piston (7) to move upward, and hydraulic medium oil enters tail stifled (2) by annular gap, when shearing component moves to desired location, the shearing that the shearing component breaking lower end is connected with piston bush is followed closely and is unlocked percussion piston (8), and percussion piston (8) moves downward and coordinates with initiator (1).
2. hydraulic delay priming device according to claim 1, it is characterized in that: described time delay assembly also comprises position-arresting disk (10), position-arresting disk (10) to be arranged in time delay housing (5) and to be positioned at time delay valve seat (3) and blocks up between (2) with tail, and (10) offer the opening be communicated with annular gap to position-arresting disk.
3. hydraulic delay priming device according to claim 1, it is characterized in that: in described time delay housing (5), be provided with dividing plate, throughly on dividing plate be provided with the opening with time delay valve seat (3) inner space, time delay valve seat (3) sealing to be fixedly installed in time delay housing (5) and spacing by dividing plate.
4. hydraulic delay priming device according to claim 1, it is characterized in that: described oil cylinder (6) one end and time delay housing (5) are sealedly and fixedly connected, the other end and transition joint (11) one end are sealedly and fixedly connected, and transition joint (11) other end and lower contact (12) are sealedly and fixedly connected.
5. hydraulic delay priming device according to claim 1, it is characterized in that: described in be provided with hydraulic medium oil oil cylinder (6) cavity ends be provided with gas pressure relief slot, (7) are provided with relief hole to piston, the internal diameter of gas pressure relief slot is greater than the external diameter of piston (7), when piston (7) moves in gas pressure relief slot, relief hole is communicated with gas pressure relief slot.
6. hydraulic delay priming device according to claim 1, it is characterized in that: described position-limit mechanism comprises the upper cannelure arranged of upper steel-ball groove, spacing steel ball (13) and the percussion piston (8) arranged of piston bush (9), time spacing, spacing steel ball (13) is arranged in steel-ball groove and cannelure.
7. hydraulic delay priming device according to claim 1, it is characterized in that: described shearing component comprises shear sleeve (21), core bar (14), gag lever post (15) and position-limiting drum (16), core bar (14) upper end to be fixedly connected with shear sleeve (21) and spacing in oil cylinder (6) by shear pin (17), lower end is sealed end and is fixedly connected with gag lever post (15) one end, gag lever post (15) other end is positive stop end and slides spacing in position-limiting drum (16), position-limiting drum (16) is connected by shear screw (18) with piston bush (9) upper end, piston bush (9) lower end is fixed by the limited step arranged in lower contact (12), when shear screw (18) is cut off, position-limiting drum (16) is separated with piston bush (9), spacing steel ball (13) unlocks percussion piston (8) under pressure.
8. hydraulic delay priming device according to claim 7, it is characterized in that: the sealed end of described core bar (14) coordinates with transition joint (11) inner wall sealing, transition joint (11) is provided with entrance pressure hole (19), acts on core bar (14) sealed end by the pressure of entrance pressure hole (19).
9. hydraulic delay priming device according to claim 1, it is characterized in that: described initiator (1) to be fixedly installed in lower contact (12) and to be positioned at percussion piston (8) below, and the percussion piston (8) after unblock down moves and clashes into ignition initiator (1) under pressure promotes.
10. hydraulic delay priming device according to claim 8, it is characterized in that: described transition joint is provided with limited step in (11), position-limiting drum (16) is arranged in transition joint (11), position-limiting drum (16) upper end coordinates with the positive stop end of gag lever post (15), position-limiting drum (16) lower ending opening, openend is connected by shear screw (18) with piston bush (9), when the positive stop end of gag lever post (15) moves up to position-limiting drum (16) upper end, gag lever post (15) drives position-limiting drum (16) to move upward and breaks shear screw (18).
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| CN201520242045.XU CN204646196U (en) | 2015-04-21 | 2015-04-21 | hydraulic delay priming device |
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| CN201520242045.XU CN204646196U (en) | 2015-04-21 | 2015-04-21 | hydraulic delay priming device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355202A (en) * | 2016-05-10 | 2017-11-17 | 中国石油天然气股份有限公司 | Delayed ignition device and perforation tubular column |
| CN109459797A (en) * | 2018-12-16 | 2019-03-12 | 山西汾西重工有限责任公司 | Closed detector water inlet self-destructor and water inlet self-destruction method in water |
| CN110905456A (en) * | 2018-09-18 | 2020-03-24 | 中国石油天然气股份有限公司 | Pressure delay ball throwing device |
| CN111183270A (en) * | 2017-07-25 | 2020-05-19 | 狩猎巨人公司 | Hydraulic delay actuated by energy output of perforating gun |
| CN109459797B (en) * | 2018-12-16 | 2024-04-26 | 山西汾西重工有限责任公司 | Water inlet self-destruction mechanism and water inlet self-destruction method of underwater closed detector |
-
2015
- 2015-04-21 CN CN201520242045.XU patent/CN204646196U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355202A (en) * | 2016-05-10 | 2017-11-17 | 中国石油天然气股份有限公司 | Delayed ignition device and perforation tubular column |
| CN107355202B (en) * | 2016-05-10 | 2019-08-02 | 中国石油天然气股份有限公司 | Delayed ignition device and perforation tubular column |
| CN111183270A (en) * | 2017-07-25 | 2020-05-19 | 狩猎巨人公司 | Hydraulic delay actuated by energy output of perforating gun |
| CN110905456A (en) * | 2018-09-18 | 2020-03-24 | 中国石油天然气股份有限公司 | Pressure delay ball throwing device |
| CN109459797A (en) * | 2018-12-16 | 2019-03-12 | 山西汾西重工有限责任公司 | Closed detector water inlet self-destructor and water inlet self-destruction method in water |
| CN109459797B (en) * | 2018-12-16 | 2024-04-26 | 山西汾西重工有限责任公司 | Water inlet self-destruction mechanism and water inlet self-destruction method of underwater closed detector |
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