CN104989336A - Unlocking energy storage spring triggering device for oil-gas well perforation initiation - Google Patents
Unlocking energy storage spring triggering device for oil-gas well perforation initiation Download PDFInfo
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- CN104989336A CN104989336A CN201510304985.1A CN201510304985A CN104989336A CN 104989336 A CN104989336 A CN 104989336A CN 201510304985 A CN201510304985 A CN 201510304985A CN 104989336 A CN104989336 A CN 104989336A
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Abstract
The invention relates to an unlocking energy storage spring triggering device for oil-gas well perforation initiation. The unlocking energy storage spring triggering device for oil-gas well perforation initiation is used for triggering an initiator in an initiation device used for triggering oil-gas well perforation, and solves the problems that a spring arranged in the existing triggering device is pre-compressed in the device for a long time, so that the elasticity of the spring fails; and after the potential energy is converted into kinetic energy, the initial energy is reduced, so that the initiator cannot be triggered. Meanwhile, the device is unlocked when the force exerting on the triggering device is greater than the pre-pressure of the spring; the initiation device can be reliably triggered; the problem that the initiation pressure cannot be preset for the initiation device for an oil-gas well is solved; the one-step well-entering perforation success ratio is improved; the construction cost is reduced; and the use is more reliable and safer.
Description
Technical field
The invention belongs to the device that perforating oil gas well detonates, be specifically related to a kind of perforating oil gas well and detonate with unlocking energy-stored spring percussion lock.
Background technology
Perforation completion is a kind of means linking up gas channel, and this completion mode has safety, and reliably, the advantages such as the oil well production life-span is long are domestic and international current most popular completion methods.Along with the volume increase of Oil/gas Well and the development of old well reform technology, the variation of perforation construction technology, the particularly storey increase design of old well, its hole condition condition becomes and becomes increasingly complex, because pit shaft is communicated with stratum, the well liquid degree of depth in pit shaft is very shallow does not even almost have well liquid.Can detonate by caber mode in straight well, but can only pressure blasting be selected in high angle hole and horizontal well, priming device is when wellbore pressure is very little, and firing lock reliably can pull the trigger initiator, this require the detonation mode of priming device and initiation conditions more and more harsher.
Normal work relationship is to the success or failure of whole perforation for priming device, and the reliability of priming device is also the major safety risks threatening well site of constructing, constructor and equipment simultaneously.Concerning field produces, perforation is as the committed step of completion, and perforation error can cause extensive work, and all that has been achieved is spoiled, even causes serious accident.Also there is the non-proper detonation in down-hole in current priming device, above puies forward the hidden danger of by mistake detonating due to vibrations in process.Simultaneously along with the change of oil field demand in recent years, the exploitation of hp-ht well, the application of composite gun perforation, needs to design a kind of new type of safe and detonates with percussion lock, can adapt to present stage perforation requirement.
Current employing spring has following two kinds of defects as the pressure class priming device of firing lock: 1 spring is in its pre-compressed state in priming device.Spring in a device under long-time, hot environment precommpression spring was lost efficacy, mechanism unlocks rear spring cannot recover original free state, potential energy is that after kinetic energy, primary power reduces, cause initiator to pull the trigger to detonate, perforating job failure, originally perforation pipe string may miss perforation, there is potential safety hazard.Well liquid height in the minimum Initiation Pressure General Requirements pit shaft of 2 pressure blasting devices is greater than 300m, if the pressure in pit shaft is lower than this value, this priming device can not be detonated.
Summary of the invention
The technical problem solved
In order to avoid the deficiencies in the prior art part, the present invention proposes a kind of perforating oil gas well and detonates with unlocking energy-stored spring percussion lock, and solving that firing pin device under low pressure clashes into can not the problem of reliable initiation initiator.
Technical scheme
A kind of perforating oil gas well detonates with unlocking energy-stored spring percussion lock, it is characterized in that comprising block bead piston 1, spring 2, steel ball 3, firing pin 4, supporting seat 5 and initiator 6; Be stepped blind hole in described block bead piston 1, first paragraph is endoporus 7, and radius matches with the radius of the spring 2 be seated in wherein; Second segment is the through hole matched with supporting seat 5 external diameter, is wherein provided with a steel ball solution locked groove 8; Described supporting seat 5 is provided with the spherical pore 11 placing steel ball 3, and steel ball 3 is placed in the arc-shaped slot of firing pin 4, and is placed in the centre bore of supporting seat 5, and the other end of supporting seat 5 connects initiator 6 by internal thread 12; Igniter cap 13 and detonator 14 is provided with successively in the centre bore of described initiator 6; Annexation is: supporting seat 5 inserts in the blind hole of block bead piston 1, and one end of spring 2 contacts with bottom block bead piston inner hole, the end contact of the other end and firing pin 4; Firing pin 4 is assemblied in supporting seat 5 endoporus, and spacing by the unlock hole on supporting seat 5 with steel ball 3; The needle point of firing pin 4 faces the igniter cap 13 on initiator 6; When the effect that block bead piston is subject to external force is vertically with supporting seat 5 relative motion, spring is compressed and is started energy storage; When block bead piston solution locked groove moves to spherical pore 11 place of supporting seat 5 simultaneously, steel ball 3 enters solution locked groove, and firing pin 4 unlocks, and is promoted the igniter cap 13 of the descending percussion primer 6 of firing pin 4, realize detonating by the spring compressed.
Beneficial effect
A kind of perforating oil gas well that the present invention proposes detonates with unlocking energy-stored spring percussion lock, that a kind of perforating oil gas well detonates with unlocking energy-stored spring percussion lock, for pulling the trigger the initiator in perforating oil gas well priming device, to solve in existing percussion lock spring in a device long-time precommpression spring was lost efficacy, after potential energy rotational, primary power reduces, cause the problem that initiator can not be pulled the trigger, the power simultaneously acting on this percussion lock is greater than pre-pressure of the spring timer and unlocks, and reliably pull the trigger priming device, solving Oil/gas Well priming device cannot the difficult problem of preset Initiation Pressure, improve the success rate of perforation of once going into the well, save construction cost, use more reliable, safer.
The invention has the advantages that: 1 spring unlocked in percussion lock is in free state in block bead piston, solving spring makes spring lose efficacy after long-time precommpression in a device, original free state cannot be recovered, after effect, make the primary power of potential energy rotational reduce; 2 unlock percussion lock realizes when pit shaft active force is greater than the precompression of spring unlocking, and reliably pulls the trigger initiator, solves the problem that well cylinder pressure hour cannot pull the trigger initiator.This percussion lock scope of application is relatively more extensive, not only may be used for low pressure oil gas well, but also for operation of detonating that is conventional or high-pressure oil-gas well.
Accompanying drawing explanation
Fig. 1: unlock energy-stored spring percussion lock schematic diagram;
1-block bead piston, 2-spring, 3-steel ball, 4-firing pin, 5-supporting seat, 6-initiator;
Block bead piston schematic diagram shown in Fig. 2: Fig. 1;
7-endoporus, 8-steel ball solution locked groove, the through hole that 9-and supporting seat 5 external diameter match;
Firing pin schematic diagram shown in Fig. 3: Fig. 1;
10-arc-shaped slot;
Supporting seat schematic diagram shown in Fig. 4: Fig. 1;
11-spherical pore, 12-internal thread;
Initiator schematic diagram shown in Fig. 5: Fig. 1;
13-igniter cap, 14-detonator, 15-detonator seat.
Detailed description of the invention
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
As shown in Figure 1, the perforating oil gas well of the present embodiment detonate with unblock energy-stored spring percussion lock comprise block bead piston 1, spring 2, steel ball 3 and, firing pin 4, supporting seat 5 and initiator 6.The annexation of described percussion lock is: spring 2 is assemblied in block bead piston 1, one end of spring 2 contacts with bottom block bead piston inner hole, the end contact of the other end and firing pin 4, firing pin 4 is assemblied in supporting seat 5 endoporus, and firing pin 4 arcwall face at the spherical pore place and supporting seat 5 central hole that are positioned over supporting seat 5 with steel ball 3 contacts, block bead piston 1 limits steel ball 3 and moves radially, and realizes the self-locking moved axially firing pin 4.Initiator 6 is connected with supporting seat 5 by screw thread, and supporting seat 5 is assemblied in block bead piston 1 endoporus and connects as one.
As shown in Figure 2, described block bead piston 1 is provided with and places the endoporus 7 of spring, steel ball solution locked groove 8 and the close-fitting hole 9 of supporting seat.
Described spring 2 is placed in the endoporus 7 of block bead piston 1, spring is in free state in hole, when the effect that block bead piston is subject to external force is descending, spring is compressed and is started energy storage, when block bead piston solution locked groove goes downwards to spherical pore 11 place of supporting seat 5, steel ball 3 enters solution locked groove, and firing pin 4 unlocks, and is promoted the descending percussion primer 6 of firing pin 4 by the spring compressed.
As shown in Figure 3, described firing pin 4 is provided with arc-shaped slot close-fitting with steel ball 3, and firing pin is assemblied in supporting seat 5 endoporus, and spacing by the unlock hole on supporting seat 5 with steel ball 3, and the needle point of firing pin 4 faces initiator 6.
As shown in Figure 4, described supporting seat 5 is provided with two spherical pores 11 and internal thread 12, and the diameter of spherical pore is slightly larger than the diameter of steel ball 3, and screw thread is for connecting initiator.
As shown in Figure 5, described initiator 6 is made up of igniter cap 13, detonator 14 and detonator seat 15, and detonator seat is provided with screw thread, and initiator is connected with supporting seat 5 by screw thread.
Claims (1)
1. perforating oil gas well detonates with unlocking an energy-stored spring percussion lock, it is characterized in that comprising block bead piston (1), spring (2), steel ball (3), firing pin (4), supporting seat (5) and initiator (6); Be stepped blind hole in described block bead piston (1), first paragraph is endoporus (7), and radius matches with the radius of the spring (2) be seated in wherein; Second segment is the through hole matched with supporting seat (5) external diameter, is wherein provided with a steel ball solution locked groove (8); Described supporting seat (5) is provided with the spherical pore (11) placing steel ball (3), steel ball (3) is placed in the arc-shaped slot of firing pin (4), and being placed in the centre bore of supporting seat (5), the other end of supporting seat (5) connects initiator (6) by internal thread (12); Igniter cap (13) and detonator (14) is provided with successively in the centre bore of described initiator (6); Annexation is: supporting seat (5) inserts in the blind hole of block bead piston (1), and one end of spring (2) contacts with bottom block bead piston inner hole, the end contact of the other end and firing pin (4); Firing pin (4) is assemblied in supporting seat (5) endoporus, and spacing by the unlock hole on supporting seat (5) with steel ball (3); The needle point of firing pin (4) faces the igniter cap (13) on initiator (6); When the effect that block bead piston is subject to external force is vertically with supporting seat (5) relative motion, spring is compressed and is started energy storage; When block bead piston solution locked groove moves to spherical pore (11) place of supporting seat (5) simultaneously, steel ball (3) enters solution locked groove, firing pin (4) unlocks, promoted the igniter cap (13) of firing pin (4) descending percussion primer (6) by the spring compressed, realize detonating.
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 |
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| 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 |
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| CN104989336A true CN104989336A (en) | 2015-10-21 |
| CN104989336B CN104989336B (en) | 2018-06-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378863A (en) * | 2017-07-07 | 2017-11-24 | 西安北方光电科技防务有限公司 | A kind of conversion equipment and its application method |
| CN109681153A (en) * | 2019-01-18 | 2019-04-26 | 西安物华巨能爆破器材有限责任公司 | A kind of perforating oil gas well percussion primer |
| CN110939424A (en) * | 2019-11-27 | 2020-03-31 | 西安物华巨能爆破器材有限责任公司 | Well-free underground coal gasification ignition method |
| CN111188599A (en) * | 2020-02-22 | 2020-05-22 | 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378863A (en) * | 2017-07-07 | 2017-11-24 | 西安北方光电科技防务有限公司 | A kind of conversion equipment and its application method |
| 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 |
| CN109681153A (en) * | 2019-01-18 | 2019-04-26 | 西安物华巨能爆破器材有限责任公司 | A kind of perforating oil gas well percussion primer |
| CN110939424A (en) * | 2019-11-27 | 2020-03-31 | 西安物华巨能爆破器材有限责任公司 | Well-free underground coal gasification ignition method |
| 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 |
| CN111188599A (en) * | 2020-02-22 | 2020-05-22 | 大庆金祥寓科技有限公司 | Energy-releasing expansion perforation device |
| CN111188599B (en) * | 2020-02-22 | 2020-09-01 | 大庆金祥寓科技有限公司 | Energy-releasing expansion perforation device |
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| CN104989336B (en) | 2018-06-01 |
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