CN209818036U

CN209818036U - Multi-stage ignition electronic selective switch for perforation

Info

Publication number: CN209818036U
Application number: CN201920019363.8U
Authority: CN
Inventors: 于军泉; 李红伟; 丁宇
Original assignee: Jiangsu Zhongman Petroleum Equipment Co Ltd
Current assignee: Jiangsu Zhongman Petroleum Equipment Co Ltd
Priority date: 2019-01-07
Filing date: 2019-01-07
Publication date: 2019-12-20
Anticipated expiration: 2029-01-07

Abstract

The utility model discloses a multistage ignition electronic selective firing switch for perforation, the selective firing switch is installed in a perforating gun, the selective firing switch comprises a plurality of layers of detonation modules which are connected in sequence, each layer of detonation module comprises a detonation circuit which can be connected with a detonator on the corresponding layer, and the detonation circuit is disconnected in a normal state; and after the N-th layer of detonation module is electrified, judging whether an (N + 1) -th layer of detonation module exists, if so, continuing to supply power to the (N + 1) -th layer of detonation module, and if not, trying to conduct a detonation circuit of the N-th layer of detonation module. The beneficial effects of the utility model are that the innovation has designed the ignition logic of switch treater, the utility model discloses compare with other products on the market and increased the security, its design has reduced installation time and flow simultaneously to greatly reduced the probability that the installation is makeed mistakes and mechanical parts became invalid.

Description

Multi-stage ignition electronic selective switch for perforation

Technical Field

The utility model belongs to the circuit switch field, concretely relates to perforation is with multistage ignition electron switch of selecting a fire.

Background

Perforation is an operation that a special energy-gathering material enters a preset horizon of a borehole to perform explosion perforation to allow fluid in underground strata to enter the perforation, is generally applied to oil-gas fields and coal fields, and is sometimes applied to the exploitation of water sources. Shaped-charge perforators are commonly used in most oil fields, bullet-type perforators have been used historically in perforating, and water-flow perforators have been used by some large oil companies abroad. Perforating guns are a combination of equipment and kits thereof used for perforating oil and gas wells. The existing energy-gathering perforating gun is widely applied, and energy-gathering jet flow is generated by the energy-gathering phenomenon of burst to shoot off the stratum.

The conventional electronic address selecting switch is excited by selecting an address through a processor, selects a code and opens a circuit corresponding to the code, and the electronic address selecting mode is lack of stability and not safe enough; the mechanical switch has large volume, large contact force, poor stability and short service life.

Disclosure of Invention

To the problem that exists among the prior art, the utility model provides a perforation is with multistage ignition electron switch of selecting a fire, the utility model discloses can select a site with the treater and arouse to change into the excitation of ignition logic, more stable safety than conventional site selection electron switch.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a multi-stage ignition electronic selective firing switch for perforation is arranged in a perforating gun and comprises a plurality of layers of detonation modules which are connected in sequence, wherein each layer of detonation module comprises a detonation circuit which can be connected with a detonator of a corresponding layer, and the detonation circuit is disconnected in a normal state;

after the N-th layer of detonation module is electrified, judging whether an N + 1-th layer of detonation module exists or not, if so, continuing to supply power to the N + 1-th layer of detonation module, and if not, trying to conduct a detonation circuit of the N-th layer of detonation module;

if the attempt of conducting the detonation circuit of the N-th layer of detonation modules is successful, the selective initiation switch is dormant, if the attempt of conducting the detonation circuit of the N-th layer of detonation modules is failed, the N-1-th layer of detonation modules judges that no N-th layer of detonation modules exists, and the N-1-th layer of detonation modules attempt to conduct the detonation circuit of the N-1-th layer;

n is an integer of 2 or more.

Each layer of the detonation modules comprises an input end, a processor and an output end, the input end and the output end are connected with the processor, and the output end of each layer of the detonation modules is connected with the input end of the next layer of the detonation modules. The related judgment is realized by a processor.

The input end of the first layer of detonation module is connected with a power supply.

A conducting line is connected in series between the output end of the detonation module and the processor, the conducting line is disconnected in a normal state, the voltage of the input end of the detonation module reaches a preset value after the input end of the detonation module is electrified, and the processor conducts the corresponding conducting line.

The processor is grounded.

The detonator is grounded.

The processor and the detonator can be grounded separately or can be grounded together uniformly.

After any layer of the detonation modules is conducted with the detonation circuit of the layer, the conducting circuit and the detonation circuit of each layer of the detonation modules are recovered to be normal.

The predetermined value is 20-40 v.

The predetermined value is 30 v.

The number of the detonation modules is 20.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the ignition logic of the switch processor is innovatively designed, compared with other products in the market, the safety of the switch processor is improved, meanwhile, the novel design reduces the installation time and the flow path, and greatly reduces the probability of installation errors and failure of mechanical parts;

2. the conventional site selection electronic switch is excited by site selection through the processor, the utility model discloses change the excitation mode into ignition logic excitation, more stable safety than conventional site selection electronic switch, mechanical and electronic switch two-in-one design makes its structure and the overall arrangement that simplifies the perforation gun joint from inside to outside simultaneously;

3. if a priming module attempts to prime the detonator but does not succeed, although it is still present, it will be defined as an "unhealthy" switch, at which time the signal will conduct to the "healthy" switch above it and continue the task, and once the last "healthy" switch is detected, the priming circuit within the switch will close, a voltage is applied to the detonator connected to it to fire (preset to 2 seconds per detonator), after which the switching system will sleep, and once a negative voltage is applied again, the above process will repeat until all detonators are fired.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of a single initiation module of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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 any creative effort belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-2, this embodiment provides a multi-stage ignition electronic selective firing switch for perforation, where the selective firing switch is installed in a perforating gun, the selective firing switch includes a plurality of layers of sequentially connected initiation modules 1, each layer of initiation module 1 includes an initiation line 12 that can be connected with a corresponding layer of detonators 11, and the initiation line 12 is disconnected in a normal state;

after the N-th layer of the detonation module 1 is electrified, judging whether the (N + 1) -th layer of the detonation module 1 exists or not, if so, continuing to supply power to the (N + 1) -th layer of the detonation module 1, and if not, trying to conduct the detonation circuit 12 of the N-th layer of the detonation module 1;

if the attempt to conduct the detonation circuit 12 of the N-th layer of the detonation module 1 is successful, the selective initiation switch is dormant, if the attempt to conduct the detonation circuit 12 of the N-th layer of the detonation module 1 fails, the N-1-th layer of the detonation module 1 judges that the N-1-th layer of the detonation module 1 does not exist, and the attempt to conduct the N-1-th layer of the detonation circuit 12 is made;

n is an integer of 2 or more.

Preferably, each layer of the initiation modules 1 in the present embodiment includes an input end 13, a processor 14 and an output end 15, the input end 13 and the output end 15 are connected with the processor 14, and the output end 15 of each layer of the initiation modules 1 is connected with the input end 13 of the initiation module 1 in the next layer.

As a further preferred feature, a conducting line 16 is connected in series between the output terminal 15 of the initiation module 1 and the processor 14 in this embodiment, the conducting line is disconnected in a normal state, the voltage of the input terminal 13 of the initiation module 1 reaches a predetermined value after being powered on, and the processor 14 conducts the corresponding conducting line.

Preferably, the processor 14 is grounded 2 in this embodiment.

More preferably, the detonator 11 of the present embodiment is grounded 2.

Preferably, after the initiation line 12 of any layer of initiation modules 1 is conducted, the conducting line and the initiation line 12 of each layer of initiation modules 1 are returned to normal.

More preferably, the predetermined value is 20 to 40v in this embodiment.

More preferably, the predetermined value is 30v in this embodiment.

As a further preference, the number of the initiation modules 1 in the embodiment is 20.

Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention can be made without departing from the spirit and scope of the present invention, and these modifications and improvements are within the spirit and scope of the present invention.

Claims

1. The multi-stage ignition electronic selective firing switch for perforation is arranged in a perforating gun and is characterized by comprising a plurality of layers of sequentially connected detonation modules (1), each layer of detonation module (1) comprises a detonation line (12) capable of being connected with a corresponding layer of detonators (11), and the detonation lines (12) are disconnected in a normal state.

2. The multi-stage ignition electronic selective firing switch for perforation according to claim 1, wherein each layer of the detonation modules (1) comprises an input end (13), a processor (14) and an output end (15), the input end (13) and the output end (15) are connected with the processor (14), and the output end (15) of each layer of the detonation modules (1) is connected with the input end (13) of the next layer of the detonation modules (1).

3. The multi-stage ignition electronic selective switch for perforation according to claim 2, wherein a conducting line (16) is connected in series between the output end (15) of the initiation module (1) and the processor (14), the conducting line (16) is disconnected under normal conditions, the voltage of the input end (13) of the initiation module (1) reaches a preset value after being electrified, and the processor (14) conducts the corresponding conducting line (16).

4. The perforating multi-stage firing electronic selector switch of claim 3 wherein the processor (14) is grounded.

5. The multi-stage ignition electronic selective switch for perforation according to claim 4, wherein the detonator (11) is grounded.

6. The multi-stage ignition electronic selective switch for perforation according to claim 5, characterized in that after the initiation line (12) of any layer of initiation module (1) is conducted, the conducting line (16) and the initiation line (12) of each layer of initiation module (1) are restored to normal state.

7. The multi-stage ignition electronic selective switch for perforation according to claim 6, wherein the predetermined value is 20-40 v.

8. The multi-stage ignition electronic selector switch for perforation according to claim 7, wherein the predetermined value is 30 v.

9. The perforating multi-stage ignition electronic selector switch of claim 1, characterized in that the number of detonation modules (1) is 20.