CN104989336B - Perforating oil gas well detonation unlock energy-stored spring percussion lock - Google Patents
Perforating oil gas well detonation unlock energy-stored spring percussion lock Download PDFInfo
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- CN104989336B CN104989336B CN201510304985.1A CN201510304985A CN104989336B CN 104989336 B CN104989336 B CN 104989336B CN 201510304985 A CN201510304985 A CN 201510304985A CN 104989336 B CN104989336 B CN 104989336B
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Abstract
The present invention relates to a kind of perforating oil gas wells to detonate with unlock energy-stored spring percussion lock, it is a kind of perforating oil gas well detonation unlock energy-stored spring percussion lock, for firing the initiator in perforating oil gas well priming device, solving spring in existing percussion lock, long-time precommpression makes spring fail in a device, primary power reduces after potential energy rotates energy, the problem of causing initiator that can not fire, device unlocks when acting on the power of the percussion lock simultaneously more than pre-pressure of the spring, and reliably fire priming device, solve the problems, such as that oil/gas well priming device can not preset Initiation Pressure, improve the success rate for perforation of once going into the well, save construction cost, using more reliable, it is safer.
Description
Technical field
The invention belongs to the devices of perforating oil gas well detonation, and in particular to a kind of perforating oil gas well detonation unlock energy storage
Spring percussion lock.
Background technology
Perforation completion is a kind of means for linking up gas channel, which has safety, reliably, oil well production service life
The advantages that long is domestic and international most popular completion method at present.With the volume increase of oil/gas well and the hair of old well reform technology
Exhibition, the variation of perforation construction technology, the particularly storey increase design of old well, hole condition condition becomes to become increasingly complex, due to pit shaft
It is connected with stratum, the well liquid depth in pit shaft is very shallow or even almost without well liquid.Caber mode can be used to rise in straight well
It is quick-fried, but pressure blasting can only be selected in high angle hole and horizontal well, priming device is in wellbore pressure very little, firing lock energy
Enough reliable percussion initiators, this requires the detonation mode of priming device and initiation conditions more and more harsher.
Whether priming device works normally the success or failure for being related to entire perforation, while the reliability of priming device is also to threaten
To the major safety risks of construction well site, construction personnel and equipment.For the production of oil field, key step of the perforation as completion
Suddenly, perforation error can cause extensive work all that has been achieved is spoiled, even result in serious accident.Also there are wells for current priming device
Under non-proper detonation, the hidden danger detonated by mistake due to vibrations during above carrying.It is high simultaneously with the variation of oil field demand in recent years
The exploitation of warm high-pressure well, the application of composite gun perforation can adapt to existing rank, it is necessary to design a kind of new type of safe detonation percussion lock
Section perforation requirement.
There are following two defects as the pressure class priming device of firing lock using spring at present：1 spring is filled in detonation
Its pre-compressed state is in putting.Spring in a device for a long time, under hot environment precommpression spring is made to fail, mechanism unlock
Spring can not recover original free state afterwards, and potential energy is primary power reduction after kinetic energy, causes initiator that can not fire
Detonation, perforating job failure, originally perforation pipe string may miss perforation, and there are security risks.The minimum of 2 pressure blasting devices rises
Detonation pressure power generally requires the well liquid height in pit shaft to be more than 300m, if the pressure in pit shaft, less than this value, the priming device is not
It can be initiated.
The content of the invention
Technical problems to be solved
In order to avoid the shortcomings of the prior art, the present invention proposes a kind of perforating oil gas well detonation unlock energy-stored spring
Percussion lock solves the problems, such as that firing pin device is unable to reliable initiation initiator under low pressure.
Technical solution
A kind of perforating oil gas well detonation unlock energy-stored spring percussion lock, it is characterised in that including block bead piston 1, spring
2nd, steel ball 3, firing pin 4, support base 5 and initiator 6；It is stepped blind hole in the block bead piston 1, first segment is endoporus 7, radius
It matches with the radius for being seated in spring 2 therein；Second segment is the through hole to match with 5 outer diameter of support base, is provided with one
A steel ball solution locked groove 8；The support base 5 is equipped with the spherical pore 11 for placing steel ball 3, and steel ball 3 is placed in the arc-shaped slot of firing pin 4
In, it is placed in the centre bore of support base 5, the other end of support base 5 connects initiator 6 by internal thread 12；The initiator 6
Centre bore in successively be equipped with igniter cap 13 and detonator 14；Connection relation is：Support base 5 is inserted into the blind hole of block bead piston 1, spring
2 one end is contacted with block bead piston inner hole bottom, the end contact of the other end and firing pin 4；Firing pin 4 is assemblied in 5 endoporus of support base,
And pass through the solution lockhole /V on support base 5 with steel ball 3；The needle point of firing pin 4 faces the igniter cap 13 on initiator 6；Work as block bead
When piston is subject to the effect of external force vertically with 5 relative motion of support base, spring is compressed and starts energy storage；Block bead piston simultaneously
When solution locked groove is moved at the spherical pore 11 of support base 5, steel ball 3 is unlocked into solution locked groove, firing pin 4, and the spring compressed promotes
The igniter cap 13 of 4 downlink percussion primer 6 of firing pin realizes detonation.
Advantageous effect
A kind of perforating oil gas well detonation unlock energy-stored spring percussion lock proposed by the present invention, is a kind of perforating oil gas well
Detonation unlock energy-stored spring percussion lock, for firing the initiator in perforating oil gas well priming device, solves existing
Long-time precommpression makes spring fail to spring in a device in percussion lock, and primary power reduces after potential energy rotates energy, makes
The problem of can not being fired into initiator, at the same act on the percussion lock power be more than pre-pressure of the spring when device unlock, and
Reliable percussion priming device, solve the problems, such as oil/gas well priming device can not preset Initiation Pressure, raising, which is once gone into the well, penetrates
The success rate in hole, saves construction cost, and use is more reliable, safer.
The advantage of the invention is that：Spring in 1 unlock percussion lock, in free state, solves in block bead piston
Spring makes spring fail after long-time precommpression in a device, can not recover original free state, turns potential energy after effect
The primary power of kinetic energy reduces；Unlock is realized in 2 unlock percussion locks when pit shaft active force is more than the precompression of spring, and reliable
Initiator is fired, solves the problems, such as that when well cylinder pressure is small initiator can not be fired.The percussion lock scope of application is wider
It is general, low pressure oil/gas well is can be not only used for, but also for the detonation operation of routine or high-pressure oil-gas well.
Description of the drawings
Fig. 1：Unlock energy-stored spring percussion lock schematic diagram；
1- block bead pistons, 2- springs, 3- steel balls, 4- firing pins, 5- support bases, 6- initiators；
Fig. 2：Block bead piston schematic diagram shown in Fig. 1；
7- endoporus, 8- steel ball solution locked grooves, the through hole that 9- matches with 5 outer diameter of support base；
Fig. 3：Firing pin schematic diagram shown in Fig. 1；
10- arc-shaped slots；
Fig. 4：Support base schematic diagram shown in Fig. 1；
11- spherical pores, 12- internal threads；
Fig. 5：Initiator schematic diagram shown in FIG. 1；
13- igniter caps, 14- detonators, 15- detonator seats.
Specific embodiment
In conjunction with embodiment, attached drawing, the invention will be further described：
As shown in Figure 1, the perforating oil gas well detonation of the present embodiment includes block bead piston with the percussion lock of unlock energy-stored spring
1st, spring 2, steel ball 3 and firing pin 4, support base 5 and initiator 6.The connection relation of the percussion lock is：Spring 2 is assemblied in gear
In pearl piston 1, one end of spring 2 is contacted with block bead piston inner hole bottom, and the end contact of the other end and firing pin 4, firing pin 4 assembles
It is positioned in 5 endoporus of support base, and with steel ball 3 at the spherical pore of support base 5 and 4 arcwall face of firing pin of 5 central hole of support base
It is in contact, block bead piston 1 limits steel ball 3 and moves radially, and realizes the self-locking moved axially to firing pin 4.Initiator 6 by screw thread with
Support base 5 connects, and support base 5 is assemblied in 1 endoporus of block bead piston and is connected as one.
As shown in Fig. 2, endoporus 7, steel ball solution locked groove 8 and support base that the block bead piston 1 is equipped with placement spring are closely matched somebody with somebody
The hole 9 of conjunction.
The spring 2 is placed in the endoporus 7 of block bead piston 1, spring in hole in free state, when block bead piston by
Under the action of to external force during row, spring is compressed and starts energy storage, and block bead piston solution locked groove goes downwards to the spherical pore 11 of support base 5
During place, steel ball 3 is unlocked into solution locked groove, firing pin 4, and the spring compressed promotes 4 downlink percussion primer 6 of firing pin.
As shown in figure 3, the firing pin 4 is equipped with is assemblied in support base 5 with 3 close-fitting arc-shaped slot of steel ball, firing pin
Endoporus, and with steel ball 3 by the solution lockhole /V on support base 5, the needle point of firing pin 4 faces initiator 6.
As shown in figure 4, being set on the support base 5 there are two spherical pore 11 and internal thread 12, the diameter of spherical pore is slightly larger than
The diameter of steel ball 3, screw thread are used to connect initiator.
As shown in figure 5, the initiator 6 is made of igniter cap 13, detonator 14 and detonator seat 15, detonator seat is equipped with spiral shell
Line, initiator are connected by screw thread with support base 5.
Claims (1)
1. a kind of perforating oil gas well detonation unlock energy-stored spring percussion lock, it is characterised in that including block bead piston (1), spring
(2), steel ball (3), firing pin (4), support base (5) and initiator (6)；It is stepped blind hole in the block bead piston (1), first segment
For endoporus (7), radius matches with being seated in the radius of spring therein (2)；Second segment is to match with support base (5) outer diameter
Through hole, be provided with a steel ball solution locked groove (8)；The support base (5) is equipped with the spherical pore (11) for placing steel ball (3),
Steel ball (3) is placed in the arc-shaped slot of firing pin (4), is placed in the centre bore of support base (5), and the other end of support base (5) leads to
Cross internal thread (12) connection initiator (6)；Igniter cap (13) and detonator (14) are equipped in the centre bore of the initiator (6) successively；
Connection relation is：In the blind hole of support base (5) insertion block bead piston (1), one end and the block bead piston inner hole bottom of spring (2) connect
It touches, the end contact of the other end and firing pin (4)；Firing pin (4) is assemblied in support base (5) endoporus, and passes through support base with steel ball (3)
(5) the solution lockhole /V on；The needle point of firing pin (4) faces the igniter cap (13) on initiator (6)；The spring（ 2）It places
In block bead piston（ 1）Endoporus（ 7）In, spring is in free state in hole, when block bead piston is acted on be subject to external force
When vertically with support base (5) relative motion, spring is compressed and starts energy storage；Block bead piston solution locked groove moves to support simultaneously
When at the spherical pore (11) of seat (5), steel ball (3) is promoted into solution locked groove, firing pin (4) unlock, the spring compressed under firing pin (4)
The igniter cap (13) of row percussion primer (6) realizes detonation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304985.1A CN104989336B (en) | 2015-06-04 | 2015-06-04 | Perforating oil gas well detonation unlock energy-stored spring percussion lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304985.1A CN104989336B (en) | 2015-06-04 | 2015-06-04 | Perforating oil gas well detonation unlock energy-stored spring percussion lock |
Publications (2)
| Publication Number | Publication Date |
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| CN104989336A CN104989336A (en) | 2015-10-21 |
| CN104989336B true CN104989336B (en) | 2018-06-01 |
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| CN201510304985.1A Active CN104989336B (en) | 2015-06-04 | 2015-06-04 | Perforating oil gas well detonation unlock energy-stored spring percussion lock |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378863B (en) * | 2017-07-07 | 2023-10-31 | 西安北方光电科技防务有限公司 | Conversion device and application method thereof |
| CN109681153B (en) * | 2019-01-18 | 2024-07-19 | 西安物华巨能爆破器材有限责任公司 | Impact detonator for perforation of oil and gas well |
| CN110939424B (en) * | 2019-11-27 | 2022-04-12 | 西安物华巨能爆破器材有限责任公司 | Well-free underground coal gasification ignition method |
| CN111188599B (en) * | 2020-02-22 | 2020-09-01 | 大庆金祥寓科技有限公司 | Energy-releasing expansion perforation device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3800705A (en) * | 1973-03-30 | 1974-04-02 | J Tamplen | Pressure balanced percussion firing system |
| US4566544A (en) * | 1984-10-29 | 1986-01-28 | Schlumberger Technology Corporation | Firing system for tubing conveyed perforating gun |
| CN201125720Y (en) * | 2007-12-10 | 2008-10-01 | 刘希贵 | Energy storage rebound type hair pressing device |
| CN103147723A (en) * | 2013-02-28 | 2013-06-12 | 西安物华巨能爆破器材有限责任公司 | Impact unlocking safe initiation device for initiation perforating gun in well completion operation of oil and gas well |
| CN103147725A (en) * | 2013-02-28 | 2013-06-12 | 西安物华巨能爆破器材有限责任公司 | Pressure differential priming device used for oil and gas well perforating operation |
| CN204729071U (en) * | 2015-06-04 | 2015-10-28 | 西安物华巨能爆破器材有限责任公司 | The percussion lock of a kind of unblock energy-stored spring |
-
2015
- 2015-06-04 CN CN201510304985.1A patent/CN104989336B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3800705A (en) * | 1973-03-30 | 1974-04-02 | J Tamplen | Pressure balanced percussion firing system |
| US4566544A (en) * | 1984-10-29 | 1986-01-28 | Schlumberger Technology Corporation | Firing system for tubing conveyed perforating gun |
| CN201125720Y (en) * | 2007-12-10 | 2008-10-01 | 刘希贵 | Energy storage rebound type hair pressing device |
| CN103147723A (en) * | 2013-02-28 | 2013-06-12 | 西安物华巨能爆破器材有限责任公司 | Impact unlocking safe initiation device for initiation perforating gun in well completion operation of oil and gas well |
| CN103147725A (en) * | 2013-02-28 | 2013-06-12 | 西安物华巨能爆破器材有限责任公司 | Pressure differential priming device used for oil and gas well perforating operation |
| CN204729071U (en) * | 2015-06-04 | 2015-10-28 | 西安物华巨能爆破器材有限责任公司 | The percussion lock of a kind of unblock energy-stored spring |
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| CN104989336A (en) | 2015-10-21 |
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