CN212272140U - Cluster-based selective-launching bridge-launching combined perforating device - Google Patents
Cluster-based selective-launching bridge-launching combined perforating device Download PDFInfo
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- CN212272140U CN212272140U CN202020510978.3U CN202020510978U CN212272140U CN 212272140 U CN212272140 U CN 212272140U CN 202020510978 U CN202020510978 U CN 202020510978U CN 212272140 U CN212272140 U CN 212272140U
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Abstract
The utility model belongs to the field of oil and gas well fracturing, and discloses a cluster selective transmission bridge launching combined perforating device, which comprises a cluster selective transmission signal input device, a bridge plug ignition device and a perforating module; the perforating module comprises a plurality of perforators and detonator bins which are connected in a staggered manner; one end of the perforating module is a perforator and is connected with the clustering selective-transmitting signal input device, and the other end of the perforating module is a detonator cabin and is connected with the bridge plug ignition device; the perforator comprises a perforator shell, a bullet rack positioning device, a bullet rack supporting device and a detonating cord; the detonator cabin comprises a detonator cabin shell and a detonator. The whole perforating device realizes a wire-free design, and the steps of connecting wires inside the perforator, between the perforator and the detonator and between the detonator and the pass line when the bridge-shooting combined perforating device is assembled on site are omitted, so that the operation steps are simplified, the assembly efficiency is improved, the safety of the whole process is ensured, side holes are not needed, and the sealing aging is further increased.
Description
Technical Field
The utility model belongs to oil gas well fracturing field relates to a cluster selection bridge shooting linkage perforating device.
Background
Along with the development of oil and gas fields and the continuous exhaustion of energy sources, unconventional oil and gas such as shale gas, dense gas, coal bed gas and the like become important succedanders of future oil and gas resources. But because unconventional oil and gas reservoirs have the characteristics of low porosity and ultra-low permeability, aiming at the unconventional oil and gas reservoirs, the production capacity is obtained after staged multi-stage fracturing stimulation measures are required to be implemented. Therefore, the segmented multistage fracturing is the first stage for carrying out unconventional oil and gas reservoir transformation and effectively improving the yield of a single well, and the function of the segmented multistage fracturing is increasingly obvious.
The staged multi-stage fracturing adopts a clustering, selecting and launching bridge and launching combined operation technology to realize staged fracturing of an oil-gas well, the technology uses a cable transmission pumping perforator and a bridge plug to temporarily isolate a fractured well section, and performs clustering perforation on the non-fractured well section to provide a pore channel condition for hydraulic fracturing, then performs fracturing operation on the well section, and completes fracturing of the next well section by adopting clustering, selecting and launching bridge and launching combined operation after fracturing.
The existing clustering selective-transmitting bridge-transmitting combined operation technology has certain defects, on one hand, in the assembly process of a perforating module, one conducting wire needs to penetrate through each cluster of perforating devices to realize the conduction of selective-transmitting signals, when the assembly is carried out on site, the conducting wires of two adjacent clusters of perforating devices, the conducting wires of detonators and selective-transmitting igniters are firstly led out from openings beside the joints between the two adjacent clusters of perforating devices, after all the perforating devices are assembled in place to be connected into the perforating module, constructors peel off insulating shells of the conducting wires led out from the openings beside the joints between the two adjacent clusters of perforating devices and then connect the conducting wires, the operation efficiency is low, and the requirement on the professional technology of the constructors is high. The conditions of loose grounding of a covered wire, press breaking, twisting of a through wire and the like can occur in the wiring process, meanwhile, the existence of the side hole increases the hidden danger of sealing timeliness, and the one-time success rate of the clustering selective transmission bridging linkage is influenced. On the other hand, as the number of each section of perforation clusters is developed from the current 2-3 clusters to 5-8 clusters, the number of platform wells is greatly increased, the cross zipper subsection multistage pressure operation puts higher requirements on the assembly aging quality of the perforating tool, and the existing clustering selective transmission bridge launching combined technology is complex in field equipment assembly and cannot completely meet the requirements of subsection multistage fracturing.
Chinese published patent numbers: CN207453945U provides "a contact electricity formula perforator casing and modularization multistage perforation tubular column", realizes the electric connection between the perforator through the tight mode of contact and contact pin top, but the contact of perforator inside upper and lower both ends still passes through the wire connection, and the field operation needs the wiring.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome among the above-mentioned prior art clustering selection bridge ejection of compact linkage perforation device wiring operation complicated, the shortcoming that installation availability factor is low provides a clustering selection bridge ejection of compact linkage perforation device.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a cluster selective-launching bridge-launching combined perforating device comprises a cluster selective-launching signal input device, a bridge plug ignition device and a perforating module; the perforating module comprises a plurality of perforators and a plurality of detonator bins, and the plurality of perforators and the detonator bins are connected in a staggered manner; one end of the perforating module is a perforator and is connected with the clustering selective-transmitting signal input device, and the other end of the perforating module is a detonator cabin and is connected with the bridge plug ignition device; the perforator comprises a perforator shell, a bullet rack positioning device, a bullet rack supporting device and a detonating cord; the detonator cabin comprises a detonator cabin shell and detonators; the perforating gun comprises a gun shell, a bullet rack positioning device, a bullet rack supporting device, a detonator and a detonator igniting spring, wherein the gun shell is connected with a detonator bin shell, the bullet rack positioning device and the bullet rack supporting device are both in insulation connection with the inner wall of the gun shell, a disc-shaped contact is arranged on the bullet rack positioning device, the bullet rack positioning device is electrically connected with a clustering and selecting signal input device through the disc-shaped contact, one end of the bullet rack is electrically connected with the bullet rack positioning device, the other end of the bullet rack is electrically connected with the bullet rack supporting device, a plurality of perforating bullets are connected with one end of the detonator transmitting tube which is arranged in the bullet rack supporting device in an insulation mode through the detonator transmitting tube, the other end of the detonator transmitting tube is connected with a detonator bin, an annular contact pin is sleeved on the bullet rack supporting device, one end of the annular contact pin is electrically connected with the bullet rack supporting.
The utility model discloses further improvement lies in:
the bullet frame positioning device comprises a bullet frame positioning seat and a positioning insulating ring; one end of the bullet rack positioning seat is electrically connected with the disc-shaped contact, the other end of the bullet rack positioning seat is electrically connected with the bullet rack, and the positioning insulating ring is sleeved on the bullet rack positioning seat and is connected with the inner wall of the shell of the perforator; the bullet rack supporting device comprises a bullet rack supporting seat, a supporting insulating ring and a booster tube insulating sleeve; one end of the bullet frame supporting seat is electrically connected with the bullet frame, the other end of the bullet frame supporting seat is sleeved with an annular contact, the supporting insulating ring is sleeved on the bullet frame supporting seat and connected with the inner wall of the perforator shell, the booster insulating sleeve is positioned inside a booster mounting hole formed in the bullet frame supporting seat, and the booster is positioned inside the booster insulating sleeve.
The bullet frame positioner still includes the positioning seat spring, offers the mounting hole on the bullet frame positioning seat, and positioning seat spring and disc contact all are located the mounting hole inside, and disc contact is connected to positioning seat spring one end, and the bullet frame positioning seat is connected to the other end.
And the positioning insulating ring and the supporting insulating ring are provided with annular grooves.
The detonator cabin shell is provided with a contact pin protection ring at one end close to the contact pin, the contact pin protection ring can extend into an annular groove formed in the positioning insulating ring, the aperture of the contact pin protection ring is the same as that of the annular contact, and the height of the contact pin protection ring is larger than the length of the contact pin outside the detonator cabin shell.
The clustering and selective-sending signal input device comprises a pressure-bearing movable contact pin and a clustering and selective-sending signal input device shell, one end of the pressure-bearing movable contact pin is positioned in the clustering and selective-sending signal input device shell, a cable joint is arranged on the end part of the pressure-bearing movable contact pin, and the other end of the pressure-bearing movable contact pin extends out of the clustering and selective-sending signal input device shell to be electrically connected with the disc-shaped contact.
The bridge plug ignition device comprises a bridge plug ignition device shell and an insulating movable double-contact, the insulating movable double-contact comprises a first contact, a second contact, a contact conduction spring and a clamp spring which are arranged in the insulating shell and the insulating shell, the outer wall of the insulating shell is connected with the inner wall of the bridge plug ignition device shell, one end of the first contact is connected with a contact pin, the other end of the first contact is sequentially connected with the contact conduction spring, the second contact and one end of the clamp spring, and the other end of the clamp spring is connected with the inner wall of the bridge plug ignition device shell.
The clustering selective-sending signal input device is connected with the perforator shell, the perforator shell is connected with the detonator bin shell, the detonator bin shell is connected with the bridge plug ignition device through threads, and sealing rings are arranged at the threaded connection positions.
And the outer wall of the detonator cabin shell is provided with a plurality of detonator cabin mounting holes for mounting the detonator cabin shell.
Compared with the prior art, the utility model discloses following beneficial effect has:
the bullet rack positioning device and the bullet rack supporting device are arranged in the perforator, so that the bullet rack is supported and positioned, meanwhile, the bullet rack positioning device is provided with a disc-shaped contact which is electrically connected with the clustering selection signal input device, and the bullet rack positioning device is connected with the clustering selection signal input device without a lead; the utility model discloses a detonator, including bullet frame positioner, ring contact, detonator, bridge plug ignition device, the setting of detonator, the ring contact is connected with the bridge plug ignition device electricity, the ring contact one end is connected with bullet frame positioner electricity, the other end is connected with bullet frame strutting arrangement electricity, the cover is established cyclic annular contact again on bullet frame strutting arrangement, cyclic annular contact one end is connected with bullet frame electricity through bullet frame strutting arrangement, the other end is connected with the ignition spring electricity that the detonator served to set up, realize that the no wire electricity of clustering selection send signal input device to the detonator is connected, set up the contact pilotage on the detonator other end, the contact pilotage is connected with bridge plug. Meanwhile, the bullet frame positioning device and the bullet frame supporting device are both in insulation connection with the inner wall of the perforator shell, the booster tube is in insulation connection with the inside of the bullet frame supporting device, and the detonator is in insulation connection with the inner wall of the detonator cabin shell, so that the insulation of the internal components of the whole perforator is guaranteed, and short circuit is prevented. Based on the design without wires, the problem of complex wiring of the perforating device is solved, the steps of connecting wires inside the perforating device, between the perforating device and the detonator and between the detonator and the through wire when the bridge-shooting combined perforating device is assembled on site are omitted, so that the operation steps are simplified, the assembly efficiency is improved, the safety of the whole process is ensured, the modularization of the perforating device is realized, side holes are not needed, and the sealing aging is increased.
Further, bullet frame positioner still includes the positioning seat spring, and disc contact is connected to positioning seat spring one end, and the bullet frame positioning seat is connected to the other end, even after the vibrations of certain degree, still can guarantee the stable conduction of selection signal between disc contact and bullet frame positioning seat based on the elasticity disc contact of spring and bullet frame positioning seat.
Furthermore, the positioning insulating ring and the supporting insulating ring are provided with annular grooves, so that the production cost is saved, and the quality of the whole perforating device is reduced.
Furthermore, a contact pin protection ring is arranged at one end, close to the contact pin, of the detonator cabin shell, the contact pin protection ring can extend into an annular groove formed in the positioning insulating ring, the aperture of the contact pin protection ring is the same as that of the annular contact, and the height of the contact pin protection ring is larger than the length of the contact pin outside the detonator cabin shell.
Furthermore, threaded connection between the shells guarantees the stability of connection, and a sealing ring is arranged at the threaded connection position, so that the sealing effect of the whole device is guaranteed.
Furthermore, a plurality of detonator bin mounting holes used for mounting the detonator bin shell are formed in the outer wall of the detonator bin shell, and when the detonator bin is mounted, a tool can be inserted into the detonator bin mounting holes to drive the detonator bin shell to rotate to realize mounting, so that the detonator bin shell can be conveniently assembled on site.
Drawings
FIG. 1 is a schematic structural view of the cluster selective launching bridge combined perforating device of the present invention;
FIG. 2 is a schematic structural diagram of the cluster-based selective-transmission signal input device of the present invention;
fig. 3 is a schematic structural view of the perforator of the present invention;
FIG. 4 is a schematic structural view of the detonator cabin of the present invention;
fig. 5 is a schematic structural view of the bridge plug ignition device of the present invention.
Wherein: 1-a clustering and selecting signal input device; 2-pressure-bearing movable contact pins; 3-clustering and selecting a signal input device shell; 4-perforating tool; 5-perforator housing; 6-a perforating charge; 7-a cartridge frame; 8-a magazine positioning device; 9-a magazine support; 10-a detonating cord; 11-a cartridge holder positioning seat; 12-positioning an insulating ring; 13-a disk contact; 14-a positioning seat spring; 15-a cartridge rack support seat; 16-supporting insulating rings; 17-a ring contact; 18-booster tube; 19-a booster insulating sleeve; 20-a detonator bin; 21-a detonator; 22-detonator insulating sleeve; 23-a detonator cartridge housing; 24-an ignition spring; 25-a stylus; 26-a bridge plug ignition device; 27-insulating movable double contacts; 28-bridge plug igniter housing; 29-an insulating housing; 30-a first contact; 31-a second contact; 32-contact conduction spring; 33-clamp spring.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1 to 5, the utility model discloses a clustering selection and transmission bridge firing combined perforating device, including clustering selection and transmission signal input device 1, bridge plug ignition device 26 and perforating module; the perforating module comprises a plurality of perforators 4 and a plurality of detonator bins 20, and the plurality of perforators 4 and the plurality of detonator bins 20 are connected in a staggered manner. The clustering selective transmission signal input device 1 is arranged at the upper end of a perforator 4, a detonator cabin 20 is arranged at the lower end of the perforator 4, if a plurality of perforators 4 exist, the rest perforators 4 and the detonator cabin 20 are connected in sequence, and a bridge plug ignition device 26 is arranged at the lower end of the last detonator cabin 20. The clustering selective-transmitting signal input device 1 is fixedly connected with the perforator 4, the perforator 4 is fixedly connected with the detonator cabin 20, and the detonator cabin 20 is fixedly connected with the bridge plug ignition device 26 through threads.
The clustering and selective transmitting signal input device 1 comprises a pressure-bearing movable contact pin 2 and a clustering and selective transmitting signal input device shell 3; a pressure-bearing movable contact pin mounting hole is formed in the clustering and selective transmission signal input device shell 3, one end of a pressure-bearing movable contact pin 2 is mounted in the clustering and selective transmission signal input device shell 3 through the pressure-bearing movable contact pin mounting hole, the other end of the clustering and selective transmission signal input device shell 3 is connected with a perforator 4, the upper end of the pressure-bearing movable contact pin 2 receives selective transmission signals transmitted by a cable, and the lower end transmits the selective transmission signals to the perforator 4.
The perforator 4 comprises a perforator shell 5, a plurality of perforating bullets 6, a bullet rack 7, a bullet rack positioning device 8, a bullet rack supporting device 9 and a detonating cord 10; the cartridge rack 7, the cartridge rack positioning device 8 and the cartridge rack supporting device 9 are all arranged inside the perforator shell 5, one end of the cartridge rack 7 is electrically connected with the cartridge rack positioning device 8, the other end of the cartridge rack 7 is electrically connected with the cartridge rack supporting device 9, the cartridge rack 7 is positioned and supported inside the perforator shell 5 through the cartridge rack positioning device 8 and the cartridge rack supporting device 9, and the cartridge rack positioning device 8 and the cartridge rack supporting device 9 are connected with the inner wall of the perforator shell 5; the perforating bullets 6 are all arranged on the bullet frame 7, the perforating bullets 6 are connected with one end of a detonating cord 10, the detonating cord 10 is wound on the perforating bullets 6, the other end of the detonating cord 10 is connected with one end of a bullet frame supporting device 9, and the other end of the bullet frame supporting device 9 is electrically connected with a detonator cabin 20.
The bullet frame positioning device 8 comprises a bullet frame positioning seat 11, a positioning insulating ring 12 and a positioning seat spring 14; set up disc contact 13 on the bullet frame positioner 8, pressure-bearing movable contact pilotage 2 is connected to disc contact 13 one end electricity, and the other end passes through 11 one ends of bullet frame positioning seat of positioning seat spring 14 electricity connection, also can directly be connected with 11 one ends electricity of bullet frame positioning seat, and 11 other ends of bullet frame positioning seat are connected with 7 one end electricity of bullet frame, are used for fixing a position bullet frame 7's position simultaneously, and 12 covers of location insulating ring are established in disc contact 13 and positioning seat spring 14 outsidely to support through bullet frame positioning seat 11. The bullet rack positioning device 8 receives the selective sending signal of the pressure-bearing movable contact pin 2, the selective sending signal is transmitted to the bullet rack supporting device 9 through the bullet rack 7, the bullet rack positioning seat 11 fixes the bullet rack positioning device 8 on the bullet rack 7, the selective sending signal on the bullet rack 7 is insulated from the perforator shell 5 through the positioning insulating ring 12, the disc-shaped contact 13 receives the selective sending signal of the pressure-bearing movable contact pin 2, and the selective sending signal is transmitted to the bullet rack 7 through the positioning seat spring 14 and the bullet rack positioning seat 11.
The bullet rack supporting device 9 comprises a bullet rack supporting seat 15, a supporting insulating ring 16 and a booster insulating sleeve 19; the elastic frame supporting device 9 is sleeved with an annular contact 17, and a booster 18 is arranged in the elastic frame supporting device 9; one end of the bullet frame supporting seat 15 is connected with the bullet frame 7 to play a role in supporting the bullet frame 7, the other end of the bullet frame supporting seat is sleeved with the annular contact 17, the annular contact 17 is in threaded connection with the bullet frame supporting seat 15, and the annular contact 17 is connected with the detonator cabin 20; the booster 18 is located inside the bomb frame supporting seat 15, the booster insulating sleeve 19 is located between the outer wall of the booster 18 and the inner wall of a booster mounting hole formed in the bomb frame supporting seat 15, one end of the booster 18 is connected with the detonating cord 10, and the other end of the booster is connected with the detonator cabin 20. The bullet rack supporting seat 15 fixes the bullet rack supporting device 9 on the bullet rack 7, the supporting insulating ring 16 insulates a selective signal of the bullet rack 7 from the shell 5 of the perforator, the bullet rack supporting seat 15 receives the selective signal input by the bullet rack 7 and transmits the selective signal to the detonator 21 through the annular contact 17, and the booster 18 is insulated from the annular contact 17 by the booster insulating sleeve 19.
The positioning insulating ring 12 and the supporting insulating ring 16 are both provided with annular grooves, production is saved, cost is increased, the quality of the whole perforating device is reduced, one end, close to the contact pin 25, of the detonator cabin shell 23 is provided with a contact pin protection ring, the contact pin protection ring can extend into the annular groove formed in the positioning insulating ring 12, the aperture of the contact pin protection ring is the same as that of the annular contact 17, the height of the contact pin protection ring is larger than the length of the contact pin 25, located outside the detonator cabin shell 23, based on the arrangement, when the detonator cabin 20 is reversely installed, the contact pin 25 cannot be in contact with the perforator 4 or the bridge plug ignition device 26, and error detonation is effectively prevented.
The detonator bin 20 comprises a detonator 21, a detonator insulating sleeve 22 and a detonator bin shell 23; the detonator 21 is arranged in the detonator cabin shell 23, the detonator insulating sleeve 22 is arranged between the outer wall of the detonator 21 and the inner wall of the detonator cabin shell 23, the detonator 21 is provided with an ignition spring 24 and a contact pin 25, the ignition spring 24 is sleeved on one end of the detonator 21 connected with the booster 18 and connected with the annular contact 17, one end of the contact pin 25 is connected with one end of the detonator 21 far away from the ignition spring 24, and the other end of the contact pin is connected with the perforator 4 or the bridge plug ignition device 26. Firing spring 24 receives the firing signal from annular contact 17 and initiates detonator 21 or transmits the firing signal via contact pin 25 to bridge ignition 26 or to the next cluster of guns 4. A plurality of detonator bin mounting holes for mounting the detonator bin shell 23 are formed in the outer wall of the detonator bin shell 23, and a mounting tool is inserted into the detonator bin mounting holes during mounting, so that the detonator bin shell 23 can be conveniently mounted on the perforator 4 and the bridge plug ignition device 26.
The bridge plug ignition device 26 comprises an insulating movable double contact 27 and a bridge plug ignition device shell 28, the insulating movable double contact 27 is located inside the bridge plug ignition device shell 28, the insulating movable double contact 27 receives a selective sending signal input by the contact pin 25, the bridge plug is ignited and sealed, the insulating movable double contact 27 comprises an insulating shell 29, a first contact 30, a second contact 31, a contact conducting spring 32 and a clamp spring 33, the first contact 30 receives the selective sending signal input by the contact pin 25 and transmits the selective sending signal to the second contact 31 through the contact conducting spring 32, and the bridge plug is ignited and sealed.
The outer wall of the insulating shell 29 is connected with the inner wall of the bridge plug ignition device shell 28, the first contact 30, the second contact 31, the contact conduction spring 32 and the clamp spring 33 are all located inside the insulating shell 29, one end of the contact conduction spring 32 is connected with the first contact 30, the other end of the contact conduction spring is connected with the second contact 31, one end, far away from the contact conduction spring 32, of the first contact 30 is connected with the contact pin 25, one end, far away from the contact conduction spring 32, of the second contact 31 is connected with the clamp spring 33, and the second contact 31 is clamped through the clamp spring 33.
The clustering selective-sending signal input device 1 is connected with the perforator shell 5, the perforator shell 5 is connected with the detonator bin shell 23, and the detonator bin shell 23 is connected with the bridge plug ignition device 26 through threads, and sealing rings are arranged at the threaded connection positions, so that the sealing performance of the whole perforating device is effectively ensured.
The utility model discloses clustering selection bridge transmission linkage perforating device's assembly method as follows:
And 2, connecting the disc-shaped contact 13 with a positioning seat spring 14, inserting the bullet rack positioning seat 11, covering a positioning insulating ring 12, and assembling to form the bullet rack positioning device 8.
And 3, connecting the bullet rack supporting seat 15 with a supporting insulating ring 16 and an annular contact 17 in sequence, inserting a booster insulating sleeve 19, and assembling to form the bullet rack supporting device 9.
And 4, respectively connecting the bullet rack positioning device 8 and the bullet rack supporting device 9 to two ends of a bullet rack 7, connecting a detonating cord 10 with a detonating tube 18, inserting the detonating cord 10 from a detonating tube insulating sleeve 19 in the bullet rack supporting device 9, sequentially inserting perforating bullets 6 into the bullet rack 7, winding the detonating cord 10 on the perforating bullets 6, inserting the bullet rack 7 into a perforator shell 5, and assembling to form the perforator 4.
And 5, inserting the detonator insulating sleeve 22 into the detonator bin shell 23, inserting the detonator 21 into the detonator bin shell 23, and assembling to form the detonator bin 20.
And 6, respectively connecting the first contact 30 and the second contact 31 to two ends of the contact conducting spring 32, inserting the first contact and the second contact into the insulating shell 29, inserting the clamp spring 33 into the insulating shell 29 to clamp the second contact 31, and assembling to form the insulating movable double contact 27.
And 8, sequentially connecting the clustering selective-transmitting signal input device 1, the perforators 4 and the detonator bins 20, if a plurality of clusters of perforators 4 exist, sequentially connecting the rest perforators 4 and the detonator bins 20, connecting the bridge plug ignition device 26 to the lower end of the last detonator bin 20, and assembling to form the clustering selective-transmitting bridge-firing perforating device.
The utility model discloses clustering selection bridge transmission linkage perforating device's application method, including following step:
and S1, connecting the cluster selective launching bridge launching combined perforating device with a cable, and conveying the cluster selective launching bridge launching combined perforating device to the operation well section through the cable.
And S2, the ground system transmits the selective transmission signal to the cluster selective transmission bridge transmission combined perforating device through the cable to the cluster selective transmission signal input device 1.
And S3, transmitting the selective sending signal from the clustering selective sending signal input device 1 to the bridge plug ignition device 26 to ignite and set the bridge plug.
And S4, repeating S2, and sequentially transmitting the selective firing signals from the clustering selective firing signal input device 1 to the detonator cabin 20 which is not detonated and is closest to the bridge plug ignition device 26, igniting the detonators 21 in the detonator cabin 20, detonating the perforators 4 connected with the detonator cabin 20, and detonating all the perforators 4.
Two clusters of perforations are exemplified below:
the perforating device needs to realize two clusters of perforating and setting bridge perforating operations, so that two perforating devices 4 and two detonator bins 20 need to be connected between the cluster selective-sending signal input device 1 and the bridge plug selective-sending leadless signal input device 26 to realize two clusters of perforating. Each perforating tool 4 is detonated by a detonator cabin 20 connected at the lower end of the perforating tool, so for cluster selective two-cluster perforation and setting and bridging operation, the perforating device consists of a cluster selective signal input device 1, a perforating tool 4 in a second cluster, a detonator cabin 20 in the second cluster, a perforating tool 4 in a first cluster, a detonator cabin 20 in the first cluster and a bridge plug ignition device 26. Furthermore, for cluster perforation and sitting-sealing bridge perforation operations of cluster selective transmission N, N >2, the perforation control device comprises a cluster selective transmission signal input device 1, a perforator 4 in the Nth cluster, detonator bins 20 and … … in the Nth cluster, a perforator 4 in the second cluster, a detonator bin 20 in the second cluster, a perforator 4 in the first cluster, a detonator bin 20 in the first cluster and a bridge plug ignition device 26.
When the clustering selection signal input device 1 and the second cluster perforator 4 are connected in place, the lower end of the pressure-bearing movable contact pin 2 is inserted into the bullet feeding frame positioning device 8, and the disc-shaped contact 13 is kept in good conductive contact with the pressure-bearing movable contact pin 2 under the action of the positioning seat spring 14. When the detonator chamber 20 of the first cluster is connected with the bridge plug ignition device 26 in place, the lower end of the contact pin 25 is inserted into the insulated movable double contact 27, and the first contact 30 is kept in good conductive contact with the contact pin 25 under the action of the contact conduction spring 32.
After the cable conveys the cluster selective emission bridge emission combined perforating device to an operation well section, the ground system transmits a first selective emission signal to the cluster selective emission bridge emission combined perforating device through the cable to the cluster selective emission signal input device 1. The pressure-bearing movable contact pin 2 transmits the received first selective transmission signal to a bridge plug ignition device 26 and an ignition seat seal bridge plug sequentially through a positioning seat spring 14, a bullet rack positioning seat 11, a bullet rack 7, a bullet rack supporting seat 15 and an annular contact 17 in the second cluster of perforating gun 4, an ignition spring 24 and a contact pin 25 in the second cluster of detonator cabin 20, the positioning seat spring 14, the bullet rack positioning seat 11, the bullet rack 7, the bullet rack supporting seat 15 and the annular contact 17 in the first cluster of perforating gun 4, and the ignition spring 24 and the contact pin 25 in the first cluster of detonator cabin 20.
And the ground system transmits a secondary selective sending signal to the cluster selective sending bridge launching combined perforating device through a cable to the cluster selective sending signal input device 1. The pressure-bearing movable contact pin 2 sequentially passes the received second selective transmission signal through the positioning seat spring 14, the bullet rack positioning seat 11, the bullet rack 7, the bullet rack supporting seat 15 and the annular contact 17 in the second cluster of the perforator 4, the ignition spring 24 and the contact pin 25 in the second cluster of the detonator cabin 20, the positioning seat spring 14, the bullet rack positioning seat 11, the bullet rack 7, the bullet rack supporting seat 15 and the annular contact 17 in the first cluster of the perforator 4, and is transmitted to the ignition spring 24 in the first cluster of the detonator cabin 20 to ignite the detonator 21 in the first cluster of the detonator cabin 20, so that the first cluster of the perforator 4 is detonated.
And the ground system transmits a third time selective sending signal to the cluster selective sending bridge launching combined perforating device through a cable to the cluster selective sending signal input device 1. The pressure-bearing movable contact pin 2 sequentially transmits the received third selective firing signal to a positioning seat spring 14, a bullet rack positioning seat 11, a bullet rack 7, a bullet rack supporting seat 15 and an annular contact 17 in the second cluster of perforating guns 4, and the third selective firing signal is transmitted to an ignition spring 24 in a detonator cabin 20 of the second cluster to ignite a detonator 21, so that the second cluster of perforating guns 4 is detonated.
The utility model discloses clustering selection transmission bridge shooting linkage perforating device, can be shale gas, dense gas, unconventional oil gas well segmentation multistage fracturing such as coal bed gas provides high-efficient accurate bridge shooting linkage device, can realize clustering selection transmission bridge shooting linkage perforating device does not have the wire in, inside the perforator when having saved on-the-spot assembly bridge shooting linkage perforating device, the step of being connected the wire between detonator and the lead wire, and then operation steps has been simplified, the assembly efficiency has been promoted, the security of whole process has been guaranteed, do not need other trompil, and then sealed ageing has been increased.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (9)
1. A cluster selective-launching bridge-launching combined perforating device is characterized by comprising a cluster selective-launching signal input device (1), a bridge plug ignition device (26) and a perforating module; the perforating module comprises a plurality of perforators (4) and a plurality of detonator bins (20), and the plurality of perforators (4) and the detonator bins (20) are connected in a staggered manner; one end of the perforation module is provided with a perforator (4) and is connected with the clustering and selecting signal input device (1), and the other end of the perforation module is provided with a detonator cabin (20) and is connected with a bridge plug ignition device (26); the perforator (4) comprises a perforator shell (5), a bullet rack (7), a bullet rack positioning device (8), a bullet rack supporting device (9) and a detonating cord (10); the detonator bin (20) comprises a detonator bin shell (23) and a detonator (21);
the perforator shell (5) is connected with a detonator cabin shell (23), a bullet rack positioning device (8) and a bullet rack supporting device (9) are both in insulation connection with the inner wall of the perforator shell (5), a disc-shaped contact (13) is arranged on the bullet rack positioning device (8), the bullet rack positioning device (8) is electrically connected with a clustering and selecting signal input device (1) through the disc-shaped contact (13), one end of a bullet rack (7) is electrically connected with the bullet rack positioning device (8), the other end of the bullet rack positioning device is electrically connected with the bullet rack supporting device (9), a plurality of perforating bullets (6) are arranged on the bullet rack (7), a plurality of perforating bullets (6) are all connected with one end of a booster tube (18) which is arranged in the bullet rack supporting device (9) in an insulation way through a booster cable (10), the other end of the booster tube (18) is connected with a detonator cabin (20), an annular contact (17) is sleeved on the bullet rack supporting device (9), one end of the annular contact (17) is electrically connected with the bullet rack supporting device (7, the other end of the detonator is electrically connected with an ignition spring (24) arranged at one end of a detonator (21), the detonator (21) is in insulated connection with the inner wall of a detonator cabin shell (23), the other end of the detonator (21) is provided with a contact pin (25), and the contact pin (25) is electrically connected with a bridge plug ignition device (26) or a disc-shaped contact (13) of an adjacent perforator (4).
2. A cluster selective firing bridge combined perforating device as claimed in claim 1, characterized in that the carrier positioning device (8) comprises a carrier positioning seat (11) and a positioning insulating ring (12); one end of the bullet rack positioning seat (11) is electrically connected with the disc-shaped contact (13), the other end of the bullet rack positioning seat is electrically connected with the bullet rack (7), and the positioning insulating ring (12) is sleeved on the bullet rack positioning seat (11) and is connected with the inner wall of the perforator shell (5);
the bullet rack supporting device (9) comprises a bullet rack supporting seat (15), a supporting insulating ring (16) and a booster tube insulating sleeve (19); one end of a bullet frame supporting seat (15) is electrically connected with a bullet frame (7), the other end of the bullet frame supporting seat is sleeved with an annular contact (17), a supporting insulating ring (16) is sleeved on the bullet frame supporting seat (15) and is connected with the inner wall of a perforator shell (5), a booster tube insulating sleeve (19) is positioned inside a booster tube mounting hole formed in the bullet frame supporting seat (15), and a booster tube (18) is positioned inside the booster tube insulating sleeve (19).
3. The perforating device with the function of selecting and launching a fire in a cluster according to claim 2, wherein the magazine locating device (8) further comprises a locating seat spring (14), a mounting hole is formed in the magazine locating seat (11), the locating seat spring (14) and the disc-shaped contact (13) are both located in the mounting hole, one end of the locating seat spring (14) is connected with the disc-shaped contact (13), and the other end of the locating seat spring is connected with the magazine locating seat (11).
4. A cluster selective firing bridge combined perforation device according to claim 2, wherein the positioning insulating ring (12) and the supporting insulating ring (16) are provided with annular grooves.
5. A cluster-selecting and launching combined perforating device as claimed in claim 4, characterized in that a contact pin protection ring is arranged at one end of the detonator storage housing (23) close to the contact pins (25), the contact pin protection ring can extend into an annular groove formed in the positioning insulating ring (12), the aperture of the contact pin protection ring is the same as that of the annular contact (17), and the height of the contact pin protection ring is greater than the length of the contact pins (25) outside the detonator storage housing (23).
6. A cluster selective transmission bridge launching combined perforating device as claimed in claim 1, wherein the cluster selective transmission signal input device (1) comprises a pressure-bearing movable contact pin (2) and a cluster selective transmission signal input device shell (3), one end of the pressure-bearing movable contact pin (2) is positioned inside the cluster selective transmission signal input device shell (3), a cable joint is arranged on the end part of the end, and the other end of the pressure-bearing movable contact pin extends out of the cluster selective transmission signal input device shell (3) to be electrically connected with the disk-shaped contact (13).
7. A cluster-based bridge-selecting and launching combined perforating device as claimed in claim 1, wherein the bridge plug ignition device (26) comprises a bridge plug ignition device housing (28) and an insulating movable double contact (27), the insulating movable double contact (27) comprises an insulating housing (29) and a first contact (30), a second contact (31), a contact conducting spring (32) and a clamping spring (33) which are arranged in the insulating housing (29), the outer wall of the insulating housing (29) is connected with the inner wall of the bridge plug ignition device housing (28), one end of the first contact (30) is connected with the contact pin (25), the other end of the first contact is sequentially connected with the contact conducting spring (32), the second contact (31) and one end of the clamping spring (33), and the other end of the clamping spring (33) is connected with the inner wall of the bridge plug ignition device housing (28).
8. A cluster selective launching bridge combined perforating device as claimed in claim 1, characterized in that the cluster selective launching signal input device (1) is connected with the perforator housing (5), the perforator housing (5) is connected with the detonator storage housing (23), and the detonator storage housing (23) is connected with the bridge plug ignition device (26) through threads, and sealing rings are arranged at the threaded connection.
9. A cluster selective firing bridge combined perforating device as claimed in claim 1, wherein the detonator cabin housing (23) is provided with a plurality of detonator cabin mounting holes on the outer wall thereof for mounting the detonator cabin housing (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020510978.3U CN212272140U (en) | 2020-04-09 | 2020-04-09 | Cluster-based selective-launching bridge-launching combined perforating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020510978.3U CN212272140U (en) | 2020-04-09 | 2020-04-09 | Cluster-based selective-launching bridge-launching combined perforating device |
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| CN212272140U true CN212272140U (en) | 2021-01-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322039A (en) * | 2020-04-09 | 2020-06-23 | 中国石油天然气集团有限公司 | Cluster-based selective-launching bridge-launching combined perforating device and method |
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2020
- 2020-04-09 CN CN202020510978.3U patent/CN212272140U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322039A (en) * | 2020-04-09 | 2020-06-23 | 中国石油天然气集团有限公司 | Cluster-based selective-launching bridge-launching combined perforating device and method |
| CN111322039B (en) * | 2020-04-09 | 2023-10-31 | 中国石油天然气集团有限公司 | Clustering selective-transmitting bridge perforation device and method |
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