CN203130054U - Double-effect detonating device for detonating perforating guns - Google Patents
Double-effect detonating device for detonating perforating guns Download PDFInfo
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- CN203130054U CN203130054U CN 201320091047 CN201320091047U CN203130054U CN 203130054 U CN203130054 U CN 203130054U CN 201320091047 CN201320091047 CN 201320091047 CN 201320091047 U CN201320091047 U CN 201320091047U CN 203130054 U CN203130054 U CN 203130054U
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Abstract
The utility model relates to a double-effect detonating device for detonating perforating guns. The double-effect detonating device is characterized by comprising an upper body, a piston assembly, a lower body and a detonating assembly, wherein the upper body is fixedly connected with the lower body through screws, the piston assembly and the detonating assembly are sequentially placed in a through hole, a nail head end of the piston assembly, which strikes a piston, is arranged in a through hole which is arranged in the upper body and fit with the nail head end, one end of the nail point is placed in an axis through hole of a firing pin seat of the detonating assembly, three steps are arranged in a through hole formed by the upper body and the lower body, a pressure piston is sleeved and clamped between two steps in the middle, the widths of the steps are equal to the thickness of the pressure piston, and the detonating assembly is connected with the step at the bottom of the lower body. The detonating device which is compact in structure, complete in assembly, reliable in function, provided with functions of bar dropping at wellheads and pressurization two-way detonating and effects of strike detonating and pressurization detonating at wellheads simultaneously is provided for tubing conveyed perforation operation of oil and gas wells.
Description
Technical field
The present invention relates to a kind of economic benefits and social benefits priming device, relate in particular to a kind of detonate priming device of perforating gun of oil gas well oil tube transmission perforation operation that is applicable to.
Background technology
The priming device operating type that uses in perforating oil gas well is divided into that caber impact initiation, pressure detonate, bump is combined to excite with pressure and is detonated.The form that excites of general priming device can only select a kind of mode to detonate, and in work progress, there are many uncertain factors, as in the process of using the sand prevention priming device, excellent phenomenon occurring hanging, make caber can not bump against piston, can not ignite priming device, cause and do over again, have huge potential safety hazard simultaneously, might cause mistake perforation or personnel's accident.Simultaneously, the priming device that uses generally also all has only the sequence of detonating at present, namely has only an ignition sequence in the mechanical assembly.If in use unexpected misfire appears in mechanical assembly part, then need will to carry on the perforating gun string again, change priming device.The redundant priming device of a kind of safety that proposes among the patent ZL201120158524.5 is that its initiator partly has two structures of getting angry, if but its mechanical assembly part effect failure then still can't guarantee normally to detonate.The redundant annular space pressure point of known U.S. Irving company product ignition system has the two-way sequence of detonating, but there is more problem: 1. divide body structure for polylinker, at first to connect the another one priming device earlier before the use, be not economic benefits and social benefits priming device truly, the user used put to no little inconvenience.2. bulky, complex structure does not utilize site assembly and construction.3. the tap points of detonation propagation of explosion sequence is many, and detonation propagation reliability of nonel tube reduces by 4. can only pressurize in sleeve pipe, does not meet some hole condition of domestic oil field.
Summary of the invention
The technical problem that solves
For fear of the deficiencies in the prior art part, the present invention proposes a kind of economic benefits and social benefits priming device be used to the perforating gun that detonates, and has the two-way sequence of detonating, and can have the detonate priming device of usefulness of impact initiation and well head pressurization simultaneously concurrently.To satisfy the user to the demand of priming device material high reliability.
Technical scheme
A kind of economic benefits and social benefits priming device be used to the perforating gun that detonates is characterized in that comprising upper body 1, piston component 2, following body 3 and the assembly 5 that detonates; Described piston component 2 comprises percussion piston 21, a plurality of steel pin 22, pressure piston 23, pressure piston cover 24, shear pin 25, percussion piston cover 26 and cuts off cover 27; The percussion piston 21 of spike inserts in the pressure piston 23, forms with pressure piston 23 large diameter inner tube walls to be slidingly connected, and is provided with percussion piston cover 26 at the sharp end of the nail of percussion piston 21, adopts shear pin 25 laterally to be connected; Pressure piston cover 24 is enclosed within pressure piston 23 major diameter positions, adopts a plurality of steel pins 22 laterally to be connected; The described assembly 5 that detonates comprises firing pin 51, safety pin 52, two igniter caps 53, two igniter cap seats 54, two detonators 55, detonating primer 56, propagation squib 57, propagation squib seat 58 and striker posts 59; Propagation squib seat 58 places in the groove of striker post 59 1 ends, and its axle center is provided with propagation squib 57, is detonating primer 56 between bottom portion of groove and the propagation squib seat 58; Striker post 59 on the groove is provided with two through holes, and one of them through hole is positioned at the axle center of striker post 59; Lay the igniter cap seat 54 that igniter cap 53 and detonator 55 are housed in each through hole respectively; Adopt safety pin 52 that firing pin 51 is fixed on the striker post 59 non-axis through-holes; Described upper body 1, piston component 2, following body 3 with the annexation of the assembly 5 that detonates is: upper body 1 adopts screw 4 to fixedly connected with following body 3, piston component 2 and the assembly 5 that detonates place in the through hole successively, wherein: the ailhead end of the percussion piston 21 of piston component 2 places in the upper body 1, in the through hole that matches with the ailhead end, follow closely in the axis through-hole that a sharp end places assembly 5 striker posts 59 that detonate, be provided with three steps in the through hole that upper body 1 and following body 3 form, pressure piston cover 24 is stuck between two steps at middle part, and the width of step equals the thickness of pressure piston cover 24; The assembly 5 that detonates is connected with the step of following body 3 bottoms.
Described pressure piston 23 leaves the free gap with the ailhead end step that upper body 1 inserts percussion piston 21.
Described propagation squib 57 is formed by temperature-resistant powder layering compacting.
Described upper body 1 is provided with the variable cross-section through hole for hollow cylinder and along axis, and the input outside is provided with the external screw thread that connects oil pipe and the screwed hole that is connected following body; The described body 3 inputs down outside is for connecting the external screw thread of upper body, and the output outside is two seals groove and the external screw thread that is connected perforating gun.
The described step connecting portion that detonates assembly 5 and following body 3 bottoms is provided with sealing ring.
Described igniter cap seat is one to have the cylinder of I shape flash hole, and igniter cap 53 and detonator 55 are separately fixed in the I shape through hole, and the igniter cap end is towards the firing pin direction.
Described striker post 59 is that a upper end has seal groove, the bottom has externally threaded cylinder.
Between percussion piston 21 and pressure piston 23, be provided with seal groove, be provided with sealing ring in the seal groove.
Between pressure piston 23 and pressure piston cover 24, be provided with seal groove, be provided with sealing ring in the seal groove.
Overlap 24 outsides at pressure piston and be provided with seal groove, be provided with sealing ring in the seal groove.
Beneficial effect
A kind of economic benefits and social benefits priming device be used to the perforating gun that detonates that the present invention proposes, for the operation of oil gas well oil tube transmission perforation provides a kind of compact conformation, complete, the reliable effect of assembling, have well head caber and the pressurization two-way function of detonating, namely have the detonate priming device of usefulness of impact initiation and well head pressurization simultaneously concurrently, to satisfy the user to the demand of priming device material high reliability.
Beneficial effect is embodied in the following aspects:
1, owing to adopt two-way to get angry sequence, namely select for use percussion piston and pressure piston to combine, the work of detonating can adopt caber also can adopt pressure to detonate, and guarantees that the present invention can realize the effect of two-way mechanism, guarantees the detonate reliability of operation of the present invention.
2, because piston component adopts percussion piston and pressure piston to combine, and pin hole is several according to the hole condition pressure design, is adapted to shallow well, deep-well, ultradeep well hole condition, and pin can use flexibly, thereby guarantee requirement of withstand voltage of the present invention.
3, because the assembly that detonates is combined two-way firer element igniter cap, detonator and detonating primer and propagation squib, guarantee that the present invention will not get angry road firer's element and destroys after detonating, guarantee to use safety.
4, because the igniter cap, detonator, the propagation squib that use are approved product, so can be mass-produced.
Description of drawings
Fig. 1: economic benefits and social benefits priming device structural representation of the present invention;
Fig. 2: the structural representation of piston component 2 among Fig. 1;
Fig. 3: the structure sectional view of piston component 2 among Fig. 1;
Fig. 4: be the schematic appearance of assembly 5 of detonating among Fig. 1;
Fig. 5: be the structure cross-sectional schematic of assembly 5 of detonating among Fig. 1;
Fig. 6: the schematic diagram that is igniter cap seat 54 among Fig. 5;
Fig. 7: the schematic diagram that is propagation squib seat 58 among Fig. 5;
Fig. 8: embodiment of the invention schematic diagram;
Detonate assembly, 21-percussion piston, 22-steel pin, 23-pressure piston, 24-pressure piston cover, 25-shear pin, 26-percussion piston cover, 27-of body, 4-, 5-cuts off the hole of storing detonator of hole, the 54B-igniter cap seat of the storing igniter cap of cover, 51-firing pin, 52-safety pin, 53-igniter cap, 54-igniter cap seat, 55-detonator, 56-detonating primer, 57-propagation squib, 58-propagation squib seat, 59-striker post, 54A-igniter cap seat under 1-upper body, 2-piston component, the 3-.
The specific embodiment
Now in conjunction with the embodiments, accompanying drawing is further described the present invention:
As shown in Figure 1, the preferred embodiment of the present invention comprises upper body 1, piston component 2, following body 3, screw 4, blast assembly 5 and some sealing rings.Upper body 1 is provided with the variable cross-section through hole for the hollow cylinder of 40Cr steel material system and along axis.The input outside is provided with the external screw thread that connects oil pipe, and inside is the variable cross-section through hole, and outlet internal is provided with and connects the internal thread hole of body 3 down.Tube wall middle position symmetry has rectangle row screen window mouth, uniform four screw holes in the output outside.Following body 3 is 40Cr steel material systems, and the input outside is for connecting the external screw thread of upper body, and the output outside is provided with two seals groove and the external screw thread that is connected perforating gun, and inside is the variable cross-section through hole, comprises three stepped holes and a screwed hole.
As Fig. 2, shown in Figure 3, piston component 2 by percussion piston 21, several steel pins 22, pressure piston 23, pressure piston cover 24, shear pin 25, percussion piston cover 26, cut off cover 27 and some sealing rings are formed.Wherein percussion piston 21 is a spike piston, and it is the bump round platform of Φ 25 that the ailhead end has a diameter, and the middle part is the cylinder of diameter of phi 10 and has the two seals groove that the nail tip is Φ 2.1 cylinders.Have one laterally to cut off the hole in lower end, percussion piston 21 middle part.Steel pin 22 is that diameter is Φ 2.7, and length is the steel pin nail of 8mm, and pin one end has a small boss and is convenient to install.Pressure piston 23 is the notch cuttype cylinder of a band center stepped hole, and larger diameter end and pressure piston cover are joined the brill pin hole, upper end, inside center hole and percussion piston 21 sealing assemblings, and the centre bore lower end diameter is greater than upper end diameter.Pressure piston cover 24 is cylindric cylinder, uniform several pin holes on the barrel, and pressure piston 23 aligns with the pin hole of pressure piston cover 24, and steel pin 22 radially inserts in the pin hole.Shear pin 25 is brass shear pin processed.Percussion piston cover 26 be tubular structure, has one laterally to cut off the hole at the tubing string middle part, this cut off hole and percussion piston 21 follow closely the tip laterally to cut off bore dia consistent.It is most advanced and sophisticated that percussion piston cover 26 is contained in percussion piston 21 nails, and laterally be connected with shear pin 25, cuts off to overlap 27 and made by elastomeric material, is enclosed within shear pin 26 outside fixed shear pin 26 inertias.
As Fig. 4, shown in Figure 5, the assembly 5 that detonates is made of firing pin 51, safety pin 52, two igniter caps 53, two igniter cap seats 54, two detonators 55, detonating primer 56, propagation squib 57, propagation squib seat 58, striker post 59 and sealing rings.Wherein firing pin 51 is acicular texture, and there is a through hole at the middle part.Safety pin 52 is brass cotter nail.Igniter cap seat 54 structures are one to have the cylinder of I shape flash hole as shown in Figure 6, and igniter cap 53 usefulness are solidified gluing its 54A end of going into, and detonator 55 glues into 54B to be held.Propagation squib 57 is compressed in the aluminum hull by poly--six explosive layerings difficult to understand and is fixed in the propagation squib seat 58 with curing glue.Propagation squib seat 58 as shown in Figure 7, the center is a blind hole, the aperture is greater than propagation squib 57, the propagation squib seat has external screw thread can be threaded onto in the striker post 59.Striker post 59 is that a upper end has the cylinder that seal groove, bottom have internal and external screw thread, and it vertically is provided with two step through-holes along axis and axis and edge center position, and output has horizontal elongated slot perpendicular to two through holes.In addition, in the seal groove of striker post 59 upper ends, radially have a through hole perpendicular to place, non-axle center stepped hole, be used for installing safety pin 52.
The assembly technology of this preferred embodiment is to put O shape viton seal ring respectively in the seal groove of percussion piston 21 and pressure piston 23, and smear lubricating grease, in percussion piston 21 being packed into pressure piston 23 from the big end of pressure piston 23 then, and percussion piston 21 is pressed onto pressure piston 23 bottoms.Percussion piston cover 26 is loaded onto from percussion piston 21 needle tips, and the hole that cuts off of percussion piston cover 26 and percussion piston 21 aligned, shear pin 25 is inserted cutting off in the hole of percussion pistons 21 and percussion piston cover 26, put in shear pin 25 outsides again and cut off cover 27 fixed shear pins 25 and do not come off.The nail tip of percussion piston 21 is back in pressure piston 23 smaller diameter end, its sealing ring is fixed in the centre bore on pressure piston 23 tops.Put sealing ring in the seal groove with pressure piston 24, again the pressure piston 23 that assembles percussion piston 21 is packed in the pressure piston cover 24, each pin hole of pressure piston 23 is alignd with the pin hole of pressure piston cover 24, and corresponding insertion steel pin 22, be assembled into piston component 2.
Glue earlier respectively in the A stomidium of two igniter cap seats 54 with solidifying the output of glue with two igniter caps 53, more respectively with the input of two detonators 55 in the B of igniter cap seat 54 stomidium, the igniter cap seat 54 of packing into.Propagation squib 57 usefulness curing mucilage bindings are gone in the blind hole of propagation squib seat 58.Two igniter cap seat 54 surfaces that install igniter cap 53 and detonator 55 are coated with to solidify glue respectively, and the end that igniter cap 53 will be housed is in the step through-hole of striker post 59 is packed it into, roof pressure puts in place gently.With the bottom of detonating primer 56 two detonator ends towards striker post 59, laterally glue in the elongated slot in the striker post 59, then the propagation squib seat 58 that assembles is screwed in the striker post 59.
Firing pin 51 needle tips towards igniter cap seat 54, are inserted in place, the non-axle center step through-hole of striker post 59, and the pin hole in the seal groove on its pin hole and the striker post 59 is alignd insertion safety pin 52.At last O shape viton seal ring is packed into and form the assembly 5 that detonates in the seal groove of striker post 59.
Install within it towards the step through-hole sealing of body 3 down percussion piston 21 nails of the piston component 2 that assembles are most advanced and sophisticated, to detonate assembly 5 firing pins 51 towards the screwed hole of following body 3 and be screwed into wherein, should note during assembling most advanced and sophisticated being encased in the axle center step through-hole of striker post 59 of percussion piston 21 nails.At last upper body 1 is threaded with following body 3, with screw 4 the two is fixedly prevented from coming off.
When carrying out perforating job, the external screw thread by upper body 1 upper end is connected with the upper end oil pipe, and the external screw thread of following body 3 is connected with the subordinate perforating gun.The course of work of the present invention is, abandon caber bump percussion piston 21 at well head, cut off shear pin 25, it follows closely the interior igniter cap 53 of place, axle center stepped hole of most advanced and sophisticated impact initiation assembly 5, light and detonate detonating primer 56 behind the detonator 55 and ignite propagation squib 57, detonation wave is passed to subordinate's perforating gun.Can be with the igniter cap 53 in the non-axle center stepped hole of the assembly 5 that detonates in work, detonator 55 is ignited and is destroyed.Unsuccessful if detonate, can adopt the sleeve pipe pressurization at well head, pressure is sent on the pressure piston 23, when pressure is cut off steel pin 22 descending bump firing pins 51 during greater than the total shear force of steel pin 22, igniter cap 53 in place, the non-axle center stepped hole of firing pin 51 impact initiation assemblies 5 is lighted and is detonated detonating primer 56 behind the detonator 55 and ignite propagation squib 57, and detonation wave is passed to subordinate's perforating gun, simultaneously the axle center is located igniter cap 53 in the stepped hole, detonator 55 is ignited and is destroyed.
The difference of second preferred embodiment of the present invention and first preferred embodiment is, according to the withstand voltage index difference of equipment, the pin hole count design of pressure piston 23 and pressure piston cover 24 is different, what 50 MPas that the normal pressure well is withstand voltage were following is 18 pins of a row, 100 MPas that high-pressure well is withstand voltage arrange two row's 36 pin holes (Fig. 2), withstand voltage 150 MPas be that three 54 pin holes of row (Fig. 3) are used for the super-pressure hole condition.
The 3rd preferred embodiment of the present invention (Fig. 8) with the difference of first preferred embodiment is, according to entrance pressure mode difference, the row's of setting screen window mouth not on the upper body 1, output arranges the sealing face, on the screw thread with following body 3 inputs sealing surface and seal groove are set, constitute airtight body jointly in upper body 1 after loading onto sealing ring during assembling, during the working pressure mode of excitation, can adopt the oil pipe pressurization to detonate at well head.
Claims (10)
1. the economic benefits and social benefits priming device for the perforating gun that detonates is characterized in that comprising upper body (1), piston component (2), following body (3) and the assembly that detonates (5); Described piston component (2) comprises percussion piston (21), a plurality of steel pin (22), pressure piston (23), pressure piston cover (24), shear pin (25), percussion piston cover (26) and cuts off cover (27); The percussion piston of spike (21) inserts in the pressure piston (23), forms with the large diameter inner tube wall of pressure piston (23) to be slidingly connected, and is provided with percussion piston cover (26) at the sharp end of the nail of percussion piston (21), adopts shear pin (25) laterally to be connected; Pressure piston cover (24) is enclosed within pressure piston (23) major diameter position, adopts a plurality of steel pins (22) laterally to be connected; The described assembly that detonates (5) comprises firing pin (51), safety pin (52), two igniter caps (53), two igniter cap seats (54), two detonators (55), detonating primer (56), propagation squib (57), propagation squib seat (58) and striker post (59); Propagation squib seat (58) places in the groove of striker post (59) one ends, and its axle center is provided with propagation squib (57), is detonating primer (56) between bottom portion of groove and the propagation squib seat (58); Striker post on the groove (59) is provided with two through holes, and one of them through hole is positioned at the axle center of striker post (59); Lay the igniter cap seat (54) that igniter cap (53) and detonator (55) are housed in each through hole respectively; Adopt safety pin (52) that firing pin (51) is fixed on the non-axis through-hole of striker post (59); Described upper body (1), piston component (2), following body (3) with the annexation of the assembly that detonates (5) is: upper body (1) adopts screw (4) to fixedly connected with following body (3), piston component (2) and the assembly that detonates (5) place in the through hole successively, wherein: the ailhead end of the percussion piston (21) of piston component (2) places in the upper body (1), in the through hole that matches with the ailhead end, follow closely in the axis through-hole that a sharp end places the assembly that detonates (5) striker post (59), be provided with three steps in the through hole that upper body (1) and following body (3) form, pressure piston cover (24) is stuck between two steps at middle part, and the width of step equals the thickness of pressure piston cover (24); The assembly (5) that detonates is connected with the step of following body (3) bottom.
2. according to the described economic benefits and social benefits priming device be used to the perforating gun that detonates of claim 1, it is characterized in that: described pressure piston (23) leaves the free gap with the ailhead end step that upper body (1) inserts percussion piston (21).
3. according to the described economic benefits and social benefits priming device be used to the perforating gun that detonates of claim 1, it is characterized in that: described propagation squib (57) is formed by temperature-resistant powder layering compacting.
4. according to the described economic benefits and social benefits priming device be used to the perforating gun that detonates of claim 1, it is characterized in that: described upper body (1) is provided with the variable cross-section through hole for hollow cylinder and along axis, and the input outside is provided with the external screw thread that connects oil pipe and the screwed hole that is connected following body; Described body (3) the input down outside is for connecting the external screw thread of upper body, and the output outside is two seals groove and the external screw thread that is connected perforating gun.
5. according to the described economic benefits and social benefits priming device be used to the perforating gun that detonates of claim 1, it is characterized in that: the described assembly that detonates (5) is provided with sealing ring with the step connecting portion of following body (3) bottom.
6. according to the described economic benefits and social benefits priming device be used to the perforating gun that detonates of claim 1, it is characterized in that: described igniter cap seat is one to have the cylinder of I shape flash hole, igniter cap (53) and detonator (55) are separately fixed in the I shape through hole, and the igniter cap end is towards the firing pin direction.
7. according to the described economic benefits and social benefits priming device be used to the perforating gun that detonates of claim 1, it is characterized in that: described striker post (59) is that a upper end has seal groove, the bottom has externally threaded cylinder.
8. according to the described economic benefits and social benefits priming device be used to the perforating gun that detonates of claim 1, it is characterized in that: between percussion piston (21) and pressure piston (23), be provided with seal groove, be provided with sealing ring in the seal groove.
9. according to the described economic benefits and social benefits priming device be used to the perforating gun that detonates of claim 1, it is characterized in that: between pressure piston (23) and pressure piston cover (24), be provided with seal groove, be provided with sealing ring in the seal groove.
10. according to the described economic benefits and social benefits priming device be used to the perforating gun that detonates of claim 1, it is characterized in that: be provided with seal groove in pressure piston cover (24) outside, be provided with sealing ring in the seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320091047 CN203130054U (en) | 2013-02-28 | 2013-02-28 | Double-effect detonating device for detonating perforating guns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320091047 CN203130054U (en) | 2013-02-28 | 2013-02-28 | Double-effect detonating device for detonating perforating guns |
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| Publication Number | Publication Date |
|---|---|
| CN203130054U true CN203130054U (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320091047 Withdrawn - After Issue CN203130054U (en) | 2013-02-28 | 2013-02-28 | Double-effect detonating device for detonating perforating guns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147724A (en) * | 2013-02-28 | 2013-06-12 | 西安物华巨能爆破器材有限责任公司 | Dual-purpose detonating device for detonating perforating gun |
-
2013
- 2013-02-28 CN CN 201320091047 patent/CN203130054U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147724A (en) * | 2013-02-28 | 2013-06-12 | 西安物华巨能爆破器材有限责任公司 | Dual-purpose detonating device for detonating perforating gun |
| CN103147724B (en) * | 2013-02-28 | 2015-07-01 | 西安物华巨能爆破器材有限责任公司 | Dual-purpose detonating device for detonating perforating gun |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130814 Effective date of abandoning: 20150701 |
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| RGAV | Abandon patent right to avoid regrant |