CN117516300A - Large-resistance detonator initiation control system and method based on pressure intelligent control device - Google Patents
Large-resistance detonator initiation control system and method based on pressure intelligent control device Download PDFInfo
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- CN117516300A CN117516300A CN202311765648.3A CN202311765648A CN117516300A CN 117516300 A CN117516300 A CN 117516300A CN 202311765648 A CN202311765648 A CN 202311765648A CN 117516300 A CN117516300 A CN 117516300A
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- 230000000977 initiatory effect Effects 0.000 title claims description 22
- 238000000034 method Methods 0.000 title claims description 10
- 238000005474 detonation Methods 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 7
- 239000003208 petroleum Substances 0.000 description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/12—Primers; Detonators electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
- F42D1/045—Arrangements for electric ignition
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The invention is suitable for the technical field of oil and gas well construction, and provides a large-resistance detonator detonation control system based on a pressure intelligent control device, which comprises the following components: the device comprises a pressure intelligent control device, a joint assembly, a boosting battery circuit and a large-resistance detonator; the intelligent pressure control device comprises a first body, a second body and an oil pipe joint which are coaxially arranged, wherein a piston, a pressure sensor, a control circuit, a circuit framework, a first plug assembly, a protection pipe, a spring, a guide pipe and a limiting clamp ring are arranged in the first body, and a second plug assembly, a high-temperature battery and a battery barrel are arranged in the second body; the connector assembly comprises a first inter-gun connector and a second inter-gun connector, the boosting battery circuit and the large-resistance detonator are arranged in the first inter-gun connector, and the boosting battery circuit and the large-resistance detonator are connected through a high-temperature wire. The system effectively shortens the assembly time before construction and improves the working efficiency and the success rate of perforation operation.
Description
Technical Field
The invention belongs to the technical field of oil and gas well construction, and particularly relates to a high-resistance detonator initiation control system and method based on a pressure intelligent control device.
Background
Petroleum is taken as an important natural resource and occupies a significant position in the development process of the economic society in China. Perforation is an important ring in completion operations and is often referred to as a "landing" during oil recovery. After drilling, cementing and logging operations are completed, perforating operations are usually performed by lowering perforating strings, so that the communication between the shaft and the stratum is completed, and an oil exploitation channel is formed. The perforating gun with shaped perforating charges is lowered to the target oil layer, the perforating charges are detonated by controlling the perforating gun, and a channel is established in the oil well casing, the well cementation cement and the stratum through the work of the explosive, so that petroleum flows into the wellbore from the stratum, and a good exploitation channel is formed.
The perforating operation belongs to special blasting operation, the operation environment has complexity and specificity, the perforating gun detonates under the environment of high temperature and high pressure, and because the initiating explosive device works to generate intense vibration, a plurality of accidents, such as ground explosion, wellhead high pressure injection and other safety accidents, can be generated in the environment of high temperature and high pressure for a long time during the operation. Thus, safe and accurate perforating operations are particularly important.
Oil pipe transmission perforation well completion is a means for communicating oil and gas channels, and is the most widely used well completion method at home and abroad at present. The intelligent pressure control device applies pressure through the ground pump truck according to a coding pressure command pre-stored by the control system, underground products output positive and negative polarity voltages, and the pressure is matched with the pressure conduction conversion device to realize the step-by-step perforation initiation of the multistage perforating gun. The product is mainly matched with a continuous oil pipe for use, can solve the perforation operation of complex well conditions such as multi-layer highly-inclined wells, horizontal wells and the like, can effectively realize the requirement of oil pipe transmission perforation staged detonation by detonating the perforator by adopting the pressure intelligent control device, and has simple and convenient operation and high reliability.
According to the API standard of the operation manual recommended by the American Petroleum institute, the resistance of the detonating primer is required to be not less than 50 omega so as to prevent the influence of radio frequency, stray current or static electricity possibly existing in the surrounding environment in the perforating operation on the electric primer and improve the use safety performance of the electric primer.
At present, the electric detonator for perforating the domestic oil and gas well mainly comprises a magneto-electric detonator, a high-current detonator and the like, and part of oilfield perforation still uses a domestic conventional electric detonator, wherein the resistance value of the detonator is not more than 2 omega, the safety performance of the electric detonator cannot meet the API standard requirement, and potential safety hazards exist in use.
Disclosure of Invention
The embodiment of the invention aims to provide a large-resistance detonator initiation control system and method based on a pressure intelligent control device, and aims to solve the problems in the background art.
The embodiment of the invention is realized in such a way that a large-resistance detonator initiation control system based on a pressure intelligent control device comprises: the device comprises a pressure intelligent control device, a joint assembly, a boosting battery circuit and a large-resistance detonator; wherein:
the intelligent pressure control device comprises a first body, a second body and an oil pipe connector which are coaxially arranged, wherein the second body and the oil pipe connector are respectively positioned at two ends of the first body, a piston, a pressure sensor, a control circuit, a circuit framework, a first plug assembly, a protection tube, a spring, a guide tube and a limiting clamp ring are arranged in the first body, and a second plug assembly, a high-temperature battery and a battery barrel are arranged in the second body; a sand setting pipe is arranged in the oil pipe joint; the pressure sensor is arranged in the protection pipe, the large-diameter end of the piston is connected with the sand setting pipe, the small-diameter end of the piston is sleeved in the protection pipe, the small-diameter end of the piston is connected with the pressure sensor, and one side of the pressure sensor, which is far away from the piston, is connected with the first plug assembly; the guide pipe is sleeved on the first plug assembly and is abutted with the protection pipe; the spring is sleeved on the first plug assembly and is abutted with the guide pipe; the control circuit is arranged in the circuit framework, one end of the circuit framework is connected with the first plug assembly, and the other end of the circuit framework is connected with the second plug assembly; the limiting snap ring is arranged at the end part of the first body, is abutted against the circuit framework and is used for limiting the circuit framework; the high-temperature battery is arranged in the battery cylinder, and the battery cylinder is connected with the second plug assembly;
the joint assembly comprises a first inter-gun joint and a second inter-gun joint, wherein a pressure switch is arranged at one end, provided with a central hole, of the first inter-gun joint, a pressing cap used for limiting the pressure switch is further arranged at one end, close to the pressure switch, of the first inter-gun joint, the second inter-gun joint is connected with one side, provided with the pressure switch, of the first inter-gun joint and the second inter-gun joint, and side hole plugs are arranged in side holes formed in the side walls of the first inter-gun joint and the second inter-gun joint;
the boost battery circuit and the large-resistance detonator are both arranged in the first inter-gun joint, and are connected through a high-temperature wire.
According to a further technical scheme, one end of the first body is coaxially connected with the second body through threads, and the other end of the first body is coaxially connected with the oil pipe joint through threads.
According to a further technical scheme, the limiting snap ring is screwed into the first body through threads.
According to a further technical scheme, the pressing cap is connected with the first gun joint through threads.
According to a further technical scheme, the second inter-gun joint is connected with an inter-gun joint through threaded fit.
Another object of the embodiment of the present invention is to provide a method for controlling detonation of a large-resistance detonator based on a pressure intelligent control device, a system for controlling detonation of a large-resistance detonator based on the pressure intelligent control device, comprising the following steps:
step 1, a pressure intelligent control device is lowered to a perforating construction layer, and in an unoperated state, the components of a first plug assembly are not contacted with each other, and an internal circuit is in an off state;
step 2, after the ground pump truck is pressurized, the piston descends under the action of the liquid pressure in the well, so that the first plug assembly in the first body is plugged and closed, the circuit system of the device is in a closed path state, the high-temperature battery supplies power to the control circuit and the pressure sensor, and the pressure sensor collects the liquid pressure in the well and transmits the liquid pressure to the control circuit;
and 3, comparing the received pressure signal with a pre-stored set pressure coding command by the control circuit, outputting a corresponding positive and negative electric detonating signal by the control circuit when the coincidence of the pressure signal and the preset positive and negative coding commands is detected underground, transmitting the signal to the input end of a boosting battery circuit in the connector assembly through a jack on the battery tube, and outputting a detonating large-resistance detonator by the boosting battery circuit to detonate the perforator.
The large-resistance detonator initiation control system based on the pressure intelligent control device provided by the embodiment of the invention adopts the booster battery circuit and the large-resistance detonator, simplifies the wiring mode, effectively shortens the assembly time before construction, improves the working efficiency, avoids the construction failure condition caused by wiring errors in the original initiation control method, and effectively improves the success rate of perforation operation.
Drawings
FIG. 1 is a schematic diagram of a large-resistance detonator initiation control system based on a pressure intelligent control device provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of a pressure intelligent control device in a large-resistance detonator initiation control system based on the pressure intelligent control device according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an installation structure of a first body, a second body and an oil pipe joint in a large-resistance detonator initiation control system based on a pressure intelligent control device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a joint assembly in a large-resistance detonator initiation control system based on a pressure intelligent control device according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a partial structure of a pressure intelligent control device in a large-resistance detonator initiation control system based on the pressure intelligent control device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a second plug assembly, a high-temperature battery and a battery cartridge in a large-resistance detonator initiation control system based on a pressure intelligent control device according to an embodiment of the present invention;
fig. 7 is a schematic diagram of an installation structure of a circuit skeleton in a large-resistance detonator initiation control system based on a pressure intelligent control device according to an embodiment of the invention.
In the accompanying drawings: 1-an intelligent pressure control device; a 2-joint assembly; 3-a boost battery circuit; 4-large resistance detonator; 5-a first body; 6-a second body; 7-a piston; 8-a pressure sensor; 9-a control circuit; 10-a circuit skeleton; 11-a first plug assembly; 12-protecting tube; 13-a spring; 14-a guide tube; 15-a second plug assembly; 16-limiting snap rings; 17-high temperature battery; 18-a battery cylinder; 19-an oil pipe joint; 20-sand setting pipe; 21-a first inter-gun joint; 22-side hole plugs; 23-a second inter-gun joint; 24-pressure switch; 25-cap pressing.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
As shown in fig. 1 to 7, a large-resistance detonator initiation control system based on a pressure intelligent control device according to an embodiment of the present invention includes: the intelligent pressure control device 1, the joint assembly 2, the boosting battery circuit 3 and the large-resistance detonator 4; wherein:
the intelligent pressure control device 1 comprises a first body 5, a second body 6 and an oil pipe joint 19 which are coaxially arranged, wherein the second body 6 and the oil pipe joint 19 are respectively positioned at two ends of the first body 5, a piston 7, a pressure sensor 8, a control circuit 9, a circuit framework 10, a first plug assembly 11, a protection tube 12, a spring 13, a guide tube 14 and a limiting clamp ring 16 are arranged in the first body 5, and a second plug assembly 15, a high-temperature battery 17 and a battery barrel 18 are arranged in the second body 6; the oil pipe joint 19 is internally provided with a sand setting pipe 20, the pressure sensor 8 is arranged in the protection pipe 12, the sand setting pipe 20 is connected with the large-diameter end of the piston 7 through a threaded hole, one side of the pressure sensor 8 is connected with the small-diameter end of the piston 7 through a threaded hole, one side of the protection pipe 12 is sleeved on the small-diameter end of the piston 7 through a threaded sleeve, and the other side of the protection pipe 12 is fixed with the first plug assembly 11 through a screw; the guide pipe 14 is sleeved on the first plug assembly 11 and is abutted against the protection pipe 12, and the spring 13 is sleeved on the first plug assembly 11 and is abutted against the guide pipe 14; the control circuit 9 is arranged in the circuit framework 10, one end of the circuit framework 10 is fixed with the first plug assembly 11 through a screw, the other end of the circuit framework 10 is fixed with the second plug assembly 15 through a screw, and one end of the circuit framework 10, which is close to the second plug assembly 15, is in a step shape; the limiting snap ring 16 is screwed into the end part of the first body 5 through threads and is abutted against the circuit framework 10, so as to limit the circuit framework 10; the high-temperature battery 17 is arranged in the battery cylinder 18, and one side of the battery cylinder 18 is fixed with the second plug assembly 15 through screws;
the joint assembly 2 comprises a first inter-gun joint 21, a side hole plug 22, a second inter-gun joint 23, a pressure switch 24 and a pressure cap 25; the pressure switch 24 is installed at one end of the first inter-gun joint 21, which is provided with a central hole, the pressure cap 25 is connected with the first inter-gun joint 21 through threads, the pressure cap 25 and the pressure switch 24 are positioned at the same end of the first inter-gun joint 21 and are used for limiting the pressure switch 24, the second inter-gun joint 23 is connected with one side of the inter-gun joint 21, which is provided with the pressure switch 24, through threads, the side hole plugs 22 are screwed into side holes formed in the side walls of the first inter-gun joint 21 and the second inter-gun joint 23 through threads, so that internal liquid inlet of the joint assembly 2 is prevented;
the booster battery circuit 3 and the large-resistance detonator 4 are both arranged in the first inter-gun joint 21 of the joint assembly 2, and the booster battery circuit 3 and the large-resistance detonator 4 are connected through high-temperature wires.
In this embodiment, the input end of the boost battery circuit in each stage of the connector assembly is connected with the control circuit through the high-temperature wire without distinguishing the positive electrode from the negative electrode, and meanwhile, the output end of the boost battery circuit is connected with the large-resistance detonator through the high-temperature wire without distinguishing the positive electrode from the negative electrode, so that the wiring mode is simplified. When the intelligent pressure control device 1 is used, the intelligent pressure control device is placed down to a perforating construction level, in the non-working state, the components of the first plug assembly 11 are not contacted with each other, and the internal circuit is in an open state. After the ground pump truck is pressurized, the piston 7 descends under the action of the liquid pressure in the well, the first plug assembly 11 in the first body 5 is plugged and closed, the circuit system of the device is in a closed path state, the high-temperature battery 17 supplies power to the control circuit 9 and the pressure sensor 8, the pressure sensor 8 collects the liquid pressure in the well (the characteristic pressure preset by the pressurization of the wellhead) and transmits the liquid pressure to the control circuit 9, the control circuit 9 compares the received pressure signal with a pre-stored set pressure coding command, when the pressure signal is detected to be matched with the preset positive and negative coding commands in the well, the control circuit 9 outputs corresponding positive and negative electric detonation signals, the signals are transmitted to the input end of the booster battery circuit 3 in the joint assembly 2 through the jack on the battery tube 18, and the booster battery circuit 3 outputs the detonation large-resistance detonator 4, so that the perforator is detonated.
As shown in fig. 1 and 3, as a preferred embodiment of the present invention, one end of the first body 5 is coaxially connected to the second body 6 by screw threads, and the other end of the first body 5 is also coaxially connected to the oil pipe joint 19 by screw threads. Through threaded connection, can conveniently realize the connection and dismantle between first body 5, second body 6 and the oil pipe joint 19, easy operation.
The invention provides a large-resistance detonator detonation control method based on a pressure intelligent control device, which is based on the large-resistance detonator detonation control system based on the pressure intelligent control device and comprises the following steps of:
step 1, the intelligent pressure control device 1 is lowered to a perforating construction layer, in an unoperated state, the components of the first plug assembly 11 are not contacted with each other, and an internal circuit is in an open state;
step 2, after the ground pump truck is pressurized, the piston 7 descends under the action of the liquid pressure in the well, so that the first plug assembly 11 in the first body 5 is plugged and closed, the circuit system of the device is in a closed path state, the high-temperature battery 17 supplies power to the control circuit 9 and the pressure sensor 8, and the pressure sensor 8 collects the liquid pressure in the well (the characteristic pressure preset by the pressurization of the wellhead) and transmits the liquid pressure to the control circuit 9;
and 3, the control circuit 9 compares the received pressure signal with a pre-stored set pressure coding command, when the pressure signal is detected to be matched with the preset positive and negative coding commands in the underground, the control circuit 9 outputs corresponding positive and negative electric detonating signals, the signals are transmitted to the input end of the boosting battery circuit 3 in the connector assembly 2 through the jack on the battery tube 18, and the boosting battery circuit 3 outputs a detonating large-resistance detonator 4 so as to detonate the perforator.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. The utility model provides a big resistance detonator initiation control system based on pressure intelligent control device which characterized in that includes: the device comprises a pressure intelligent control device, a joint assembly, a boosting battery circuit and a large-resistance detonator; wherein:
the intelligent pressure control device comprises a first body, a second body and an oil pipe connector which are coaxially arranged, wherein the second body and the oil pipe connector are respectively positioned at two ends of the first body, a piston, a pressure sensor, a control circuit, a circuit framework, a first plug assembly, a protection tube, a spring, a guide tube and a limiting clamp ring are arranged in the first body, and a second plug assembly, a high-temperature battery and a battery barrel are arranged in the second body; a sand setting pipe is arranged in the oil pipe joint; the pressure sensor is arranged in the protection pipe, the large-diameter end of the piston is connected with the sand setting pipe, the small-diameter end of the piston is sleeved in the protection pipe, the small-diameter end of the piston is connected with the pressure sensor, and one side of the pressure sensor, which is far away from the piston, is connected with the first plug assembly; the guide pipe is sleeved on the first plug assembly and is abutted with the protection pipe; the spring is sleeved on the first plug assembly and is abutted with the guide pipe; the control circuit is arranged in the circuit framework, one end of the circuit framework is connected with the first plug assembly, and the other end of the circuit framework is connected with the second plug assembly; the limiting snap ring is fixedly connected with the end part of the first body and is abutted against the circuit framework, so as to limit the circuit framework; the high-temperature battery is arranged in the battery cylinder, and the battery cylinder is connected with the second plug assembly;
the joint assembly comprises a first inter-gun joint and a second inter-gun joint, wherein a pressure switch is arranged at one end, provided with a central hole, of the first inter-gun joint, a pressing cap used for limiting the pressure switch is further arranged at one end, close to the pressure switch, of the first inter-gun joint, the second inter-gun joint is connected with one side, provided with the pressure switch, of the first inter-gun joint and the second inter-gun joint, and side hole plugs are arranged in side holes formed in the side walls of the first inter-gun joint and the second inter-gun joint;
the boost battery circuit and the large-resistance detonator are both arranged in the first inter-gun joint, and are connected through a high-temperature wire.
2. The high-resistance detonator initiation control system based on a pressure intelligent control device of claim 1 wherein one end of said first body is coaxially connected with said second body by threads and the other end of said first body is coaxially connected with said tubing connector by threads.
3. The high resistance detonator initiation control system based on a pressure intelligent control device of claim 1 wherein said retaining collar is threaded into the first body.
4. The high resistance detonator initiation control system based on a pressure intelligent control device of claim 1 wherein said pressure cap is threadably connected to said first gun interface.
5. The high-resistance detonator initiation control system based on the intelligent pressure control device of claim 1 wherein said second inter-gun joint is connected with an inter-gun joint by threaded engagement.
6. A method for controlling detonation of a large-resistance detonator based on a pressure intelligent control device, which is based on the large-resistance detonator detonation control system based on the pressure intelligent control device as claimed in any one of claims 1 to 5, and is characterized by comprising the following steps:
step 1, a pressure intelligent control device is lowered to a perforating construction layer, and in an unoperated state, the components of a first plug assembly are not contacted with each other, and an internal circuit is in an off state;
step 2, after the ground pump truck is pressurized, the piston descends under the action of the liquid pressure in the well, so that the first plug assembly in the first body is plugged and closed, the circuit system of the device is in a closed path state, the high-temperature battery supplies power to the control circuit and the pressure sensor, and the pressure sensor collects the liquid pressure in the well and transmits the liquid pressure to the control circuit;
and 3, comparing the received pressure signal with a pre-stored set pressure coding command by the control circuit, outputting a corresponding positive and negative electric detonating signal by the control circuit when the coincidence of the pressure signal and the preset positive and negative coding commands is detected underground, transmitting the signal to the input end of a boosting battery circuit in the connector assembly through a jack on the battery tube, and outputting a detonating large-resistance detonator by the boosting battery circuit to detonate the perforator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311765648.3A CN117516300A (en) | 2023-12-21 | 2023-12-21 | Large-resistance detonator initiation control system and method based on pressure intelligent control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311765648.3A CN117516300A (en) | 2023-12-21 | 2023-12-21 | Large-resistance detonator initiation control system and method based on pressure intelligent control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117516300A true CN117516300A (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311765648.3A Pending CN117516300A (en) | 2023-12-21 | 2023-12-21 | Large-resistance detonator initiation control system and method based on pressure intelligent control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117516300A (en) |
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2023
- 2023-12-21 CN CN202311765648.3A patent/CN117516300A/en active Pending
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