CN211692419U - Intelligent selective switch for cable conveying bridge plug and perforation combined operation - Google Patents
Intelligent selective switch for cable conveying bridge plug and perforation combined operation Download PDFInfo
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- CN211692419U CN211692419U CN202020339630.2U CN202020339630U CN211692419U CN 211692419 U CN211692419 U CN 211692419U CN 202020339630 U CN202020339630 U CN 202020339630U CN 211692419 U CN211692419 U CN 211692419U
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Abstract
The utility model discloses an intelligence selection switch that is used for cable transport bridging plug and perforation to ally oneself with and does, it is stronger to the dependency of cable mainly to solve current selection switch, and application scope is limited, the not good enough problem of job stabilization nature. The method comprises the following steps: the system comprises a communication transceiving module for processing signals in a modulation and demodulation mode, a temperature sensor connected to a microprocessor and used for monitoring the underground temperature in real time, and an ignition voltage output acquisition circuit; the intelligent selective-sending switch has independent fixed addresses and can be mutually connected in a step-by-step conduction mode to form a multi-stage selective-sending switch, each stage of selective-sending switch is provided with a magnetoelectric detonator excitation circuit and a large-resistance detonator excitation circuit, and the fixed addresses in the intelligent selective-sending switch are addressed to realize the transmission of control commands; the utility model discloses application scope is wide, and has effectively improved site work efficiency and job stabilization nature.
Description
Technical Field
The utility model belongs to the technical field of oil gas exploitation, further wade bridge plug and perforation intelligent control technique, specifically be a switch is sent out to intelligence selection that is used for cable transport bridge plug and perforation to ally oneself with and works, can be used to equipment in the pit.
Background
The combination of bridge plugs and perforations is the most widely used perforation completion mode in unconventional oil and gas reservoir development, and the mode can effectively improve the single well production. The cable conveying bridge-shooting combined technology utilizes cable pumping to finish bridge plug setting and multi-cluster perforation by one-time well descending, and has the advantages of no limitation of the number of layers of segmented fracturing, simple tool pipe column, difficult sand blocking, quick blockage relieving, obvious single-well production increasing effect and the like. In recent years, along with the acceleration of development steps of shale oil gas and dense oil gas, the importance of the transformation efficiency and effect of a fracturing reservoir is highlighted, the demand of bridge-perforating combined operation is greatly increased, and higher requirements are provided for the bridge plug and perforating combined operation technology and the process construction process. Products which do not need cable matching and can be compatible with various bridge plug igniters and perforating detonators are not found in related perforating detonator products in China at present.
At present, most foreign cable graded perforation and detonation controllers are complex to operate and do not accord with the operation habits of domestic operators. The domestic cable multi-stage perforation exploder has the defects of incompatibility with various igniters and detonators, risk of wrong explosion, strong cable dependence and the like. The specifications and lengths of the cables used by the logging teams are different, and the impedance matching on site is time-consuming and labor-consuming.
The conventional selective switch used in the prior art has strong dependence on cables, and when the impedance of the cables changes, the cables need to be matched manually. The existing mechanical hair selection switch has the defects of large volume, large contact force, poor stability and incapability of realizing random hair selection; the conventional electronic switch for selecting and transmitting is characterized in that the next-stage electronic switch for selecting and transmitting connected in series on the tool string is turned on one by one through the processor, and the electronic addressing mode is poor in stability and safety.
The utility model discloses an in the utility model patent application of 201920019363.8, the name is multistage ignition electron election switch is used in perforation, disclose a install the election switch in perforating gun, including the detonation module that a plurality of layers connect gradually, every layer of detonation module is including the detonation circuit that can be connected with the detonator that corresponds the layer. The utility model discloses a technical scheme that provides has adopted the mode of opening step by step of logic formula, has increased the security on the basis of current option switch, has reduced installation time and flow, but it the switch does not possess the function of relevant parameters such as feedback downhole temperature and ignition voltage, and application scope is limited, the job stability is not good enough.
Disclosure of Invention
The utility model aims to provide an intelligent selecting switch for the combined action of a cable conveying bridge plug and a perforation aiming at the defects of the prior art; the intelligent selective-sending switch is provided with an independent fixed address, a temperature sensor and an ignition voltage output acquisition circuit; the intelligent selective switch can be connected with each other in a step-by-step conduction mode to form a multi-stage selective switch, each stage of selective switch is provided with a magnetoelectric detonator excitation circuit and a large-resistance detonator excitation circuit, and the transmission of a control command can be realized by addressing a fixed address in the intelligent selective switch; the application range, the field working efficiency and the operation stability of the selective switch are effectively improved.
In order to achieve the above object, the utility model provides a pair of a switch is sent out to intelligence that is used for cable transport bridging plug to unite with perforation, include: an input ground terminal GND9, a power supply voltage input terminal VCC10, a power supply management module 17, a microprocessor 18, a power supply voltage acquisition circuit 24, a triode 25, a downward power supply driving circuit 26, a magnetoelectric detonator excitation driving circuit 27, a large-resistance detonator excitation driving circuit 32, an output ground terminal GND36 and a downward power supply interface 37; it is characterized by also comprising: a communication transmitting unit 11, a communication receiving unit 19, and a temperature sensor 23;
the communication sending unit 11 and the communication receiving unit 19 both adopt a modulation and demodulation mode to process signals; the communication receiving unit 19 acquires signals from the power supply cable, and transmits the signals to the microprocessor 18 after processing; the communication sending unit 11 receives a command from the microprocessor 18 and feeds back information to the power supply cable;
the temperature sensor 23 is connected to the microprocessor 18 and used for collecting temperature data and transmitting the temperature data to the microprocessor in real time;
the communication sending unit 11 is composed of a modulation circuit 12, a DA digital-to-analog conversion circuit 13 and an encoding circuit 14, wherein the input end of the DA digital-to-analog conversion circuit 13 is connected with the encoding circuit 14, and the output end is connected with the modulation circuit 12; the system is used for coupling information to be transmitted to a power supply cable;
the communication receiving unit 19 is composed of a demodulation circuit 20, an AD/d conversion circuit 21, and a decoding and decoding circuit 22, wherein the input end of the AD/d conversion circuit 21 is connected to the demodulation circuit 20, and the output end is connected to the decoding and decoding circuit 22; the device is used for demodulating, sampling and translating the electric signal on the power supply cable into command information;
the magnetoelectric detonator excitation driving circuit 27 consists of a frequency generator 30, a second power driving circuit 28, a first ignition output terminal 29 and a first ignition voltage acquisition circuit 31; wherein the input of the second power driving circuit 28 is connected with the output end of the frequency generator 30, the output is connected with the input of the first ignition output terminal 29, and the first ignition output terminal 29 is provided with an output port for connecting with the magnetoelectric detonator/magnetoelectric igniter 38 outside the switch;
the large-resistance detonator excitation driving circuit 32 consists of a third power driving circuit 33, a second ignition output terminal 34 and a second ignition voltage acquisition circuit 35; wherein the output of the third power driving circuit 33 is connected with the input of the second ignition output terminal 34, and the second ignition output terminal 34 is provided with an output port for connecting a large-resistance detonator/large-resistance igniter 39 outside the switch;
the first ignition voltage acquisition circuit 31 is connected between the first ignition output terminal 29 and the microprocessor 18, and the second ignition voltage acquisition circuit 35 is connected between the second ignition output terminal 34 and the microprocessor 18; are used for feeding back the acquired voltage information through the microprocessor 18.
Compared with the prior art, the utility model has the following advantage:
firstly, because the utility model adopts a two-way communication mode, the information of the underground selecting switch can be fed back to the ground in real time, thereby the state of the underground selecting switch and the underground environmental parameter information can be mastered in real time, and the one-time success rate of perforation is greatly improved;
secondly, because the utility model discloses an intelligence selection switch has independent fixed address, so can be through the mode interconnect that switches on step by step, can constitute multistage selection switch, and each grade selection switch all has magnetoelectric detonator excitation circuit and big resistance detonator excitation circuit, and the fixed address in addressing intelligence selection switch can realize the transmission of control command to enlarged application scope, and effectively improved on-the-spot work efficiency and job stabilization nature;
third, because the utility model discloses a temperature sensor acquisition circuit for can feed back ground with the peripheral temperature condition of each grade switch after reacing the target layer, thereby provide data support for perforation operation and subsequent fracturing operation.
Drawings
Fig. 1 is a circuit block diagram of the present invention;
FIG. 2 is a schematic view of the connection of the present invention in an integral perforating gun string;
fig. 3 is a schematic view of the working process of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the utility model discloses the circuit block diagram of switch, it is right the utility model provides a concrete structure that is used for intelligent election switch of cable transport bridging plug and perforation combined operation describes:
the utility model provides an intelligence selection switch, including input ground terminal GND9, supply voltage input VCC10, power management module 17, microprocessor 18, mains voltage acquisition circuit 24, triode 25, power supply drive circuit 26, magnetoelectric detonator arouses drive circuit 27, high resistance detonator arouses drive circuit 32, output ground terminal GND36, power supply interface 37 downwards; wherein its characterized in that still includes: a communication transmitting unit 11, a communication receiving unit 19, and a temperature sensor 23;
the communication sending unit 11 and the communication receiving unit 19 both adopt a modulation and demodulation mode to process signals; the communication receiving unit 19 acquires signals from the power supply cable, and transmits the signals to the microprocessor 18 after processing; the communication sending unit 11 receives a command from the microprocessor 18 and feeds back information to the power supply cable;
the communication sending unit 11 is composed of a modulation circuit 12, a DA digital-to-analog conversion circuit 13 and an encoding circuit 14, wherein the input end of the DA digital-to-analog conversion circuit 13 is the encoding circuit 14, and the output end is connected with the modulation circuit 12; the system is used for coupling information to be transmitted to a power supply cable;
the communication receiving module 19 is composed of a demodulation circuit 20, an AD/d conversion circuit 21, and a decoding and decoding circuit 22, wherein the input end of the AD/d conversion circuit 21 is connected to the demodulation circuit 20, and the output end is connected to the decoding and decoding circuit 22; the module demodulates the electric signal obtained from the power supply cable through the demodulation circuit 20, then samples the electric signal through the AD conversion circuit 21, and finally translates the electric signal into command information sent by the control panel through the decoding and decoding circuit 22 and transmits the command information to the microprocessor 18;
the utility model discloses an intelligence selection switch receives the signal that couples to supply voltage input VCC10 through its inside communication receiving element 19, demodulates, decodes the signal, analyzes out the order of conveying on the cable and transmits it for microprocessor 18, carries out following judgement to the order by microprocessor 18:
if the command is a cascade command, the address information of the communication sending unit 11 is returned to the communication cable, and downward power supply is attempted through the triode 25;
if the command is a positioning command, returning address information carried in the command, judging whether the address of the current level is consistent with the address carried in the command, if so, positioning the current level, and if not, issuing the information to the next level;
if the command is an ignition command, the magnetoelectric detonator excitation driving circuit 27 and the large-resistance detonator excitation driving circuit 32 are sequentially opened, the magnetoelectric detonator connected with the output end of the magnetoelectric detonator excitation driving circuit 27 and the large-resistance detonator connected with the output end of the large-resistance detonator excitation driving circuit 32 are excited, and ignition is finished.
The temperature sensor 23 is connected to the microprocessor 18 and used for collecting temperature data and transmitting the temperature data to the microprocessor in real time;
the magnetoelectric detonator excitation driving circuit 27 consists of a frequency generator 30, a second power driving circuit 28, a first ignition output terminal 29 and a first ignition voltage acquisition circuit 31; wherein the input of the second power driving circuit 28 is connected with the output end of the frequency generator 30, the output is connected with the input of the first ignition output terminal 29, the first ignition output terminal 29 is provided with an output port for connecting with the magnetoelectric detonator/magnetoelectric igniter 38 outside the switch, when in use, the magnetoelectric detonator/magnetoelectric igniter 38 and the selective firing switch are put into the perforating gun together; the first ignition voltage acquisition circuit 31 is connected between the first ignition output terminal 29 and the microprocessor 18, and is used for feeding back acquired voltage information through the microprocessor 18; the acquired voltage is transmitted to the communication sending unit 11 through the microprocessor 18, so that the voltage is further returned to the ground control panel, and the information can be used as a judgment basis for judging whether the magnetoelectric detonator is detonated;
the large-resistance detonator excitation driving circuit 32 consists of a third power driving circuit 33, a second ignition output terminal 34 and a second ignition voltage acquisition circuit 35; wherein the output of the third power driving circuit 33 is connected to the input of the second ignition output terminal 34, the second ignition output terminal 34 is provided with an output port for connecting a large resistance detonator/large resistance igniter 39 outside the switch, and when in use, the large resistance detonator/large resistance igniter 39 and the selective firing switch are put into the perforating gun together; the second ignition voltage acquisition circuit 35 is connected between the second ignition output terminal 34 and the microprocessor 18, and is used for feeding back acquired voltage information through the microprocessor 18; the acquired voltage is transmitted to the communication sending unit 11 through the microprocessor 18, so that the voltage is further returned to the ground control panel, and the information can be used as a judgment basis for judging whether the large-resistance detonator is detonated;
the utility model discloses can gather temperature in the pit, switch operating voltage, ignition output voltage isoparametric to through communication sending module 11 and communication receiving unit 19 realize single core long distance communication of cable in the pit, 7 to 15 kilometers underground two-way communication promptly, feed back ground system with data in the pit in real time.
Referring to fig. 2, the utility model discloses a connection schematic diagram in whole perforating gun string, the utility model discloses the switch is in the in-service use process, constructor installs an intelligent selecting and sending switch for each barrel, and links up N intelligent selecting and sending switches step by step, as shown in fig. 2 No. 1 intelligent selecting and sending switch 5, No. 2 intelligent selecting and sending switch 6 to No. N intelligent selecting and sending switch 7, N is the natural number more than or equal to 1; with the intelligent election switch of preface No. 1 with be connected to the lower extreme of logging cable 3 through other downhole equipment 4, upwards through logging cable 3 with intelligent election send control system panel 2 be connected, can use intelligent election send control system panel 2 to operate in the use, also can use PC end software 1 to operate.
Referring to fig. 3, the utility model discloses a work flow diagram, PC end software passes through USB with the election control system panel and is connected, and the panel couples the command message of PC end to the logging cable on, and the communication transceiver module of election switch adopts the mode of modem to handle the signal, accomplishes the work of obtaining the signal from the power supply cable and feeding back information to the power supply cable; the power supply management module provides proper voltage for the whole switch; and the communication analysis module is used for demodulating and decoding the signals after receiving the signals transmitted by the ground, analyzing the commands transmitted on the cable, transmitting the commands to the microprocessor, and judging and responding the commands by the microprocessor. If the command is judged to be a cascade command, the address information of the communication cable is returned to the communication cable through the communication sending unit, and downward power supply is tried through the triode; if the command is a positioning command, returning address information carried in the command, judging whether the address of the current level is consistent with the address carried in the command, if so, positioning the current level, and if not, issuing the information to the next level; if the command is an ignition command, the magnetoelectric detonator excitation driving circuit and the large resistance detonator excitation driving circuit are sequentially opened to excite the magnetoelectric detonator and the large resistance detonator, and the ignition is finished.
The switch provided by the utility model is already used in a plurality of operation areas of the Changqing oil field, and the one-time success rate of finishing the ignition work by using the switch at present is 100%; the accumulated number of the excitation detonators exceeds 15000 times.
The non-detailed description of the present invention is within the common general knowledge of those skilled in the art.
It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. An intelligent selective-sending switch for the combined operation of a cable conveying bridge plug and a perforation comprises an input grounding end GND (9), a power supply voltage input end VCC (10), a power supply management module (17), a microprocessor (18), a power supply voltage acquisition circuit (24), a triode (25), a downward power supply driving circuit (26), a magnetoelectric detonator excitation driving circuit (27), a large-resistance detonator excitation driving circuit (32), an output grounding end GND (36) and a downward power supply interface (37); it is characterized by also comprising: a communication transmission unit (11), a communication reception unit (19), and a temperature sensor (23);
the communication sending unit (11) and the communication receiving unit (19) both adopt a modulation and demodulation mode to process signals; the communication receiving unit (19) acquires signals from the power supply cable, and transmits the signals to the microprocessor (18) after processing; the communication sending unit (11) receives a command from the microprocessor (18) and feeds back information to the power supply cable;
the temperature sensor (23) is connected to the microprocessor (18) and used for collecting temperature data and transmitting the temperature data to the microprocessor in real time.
2. The switch of claim 1, wherein: the communication sending unit (11) is composed of a modulation circuit (12), a DA digital-to-analog conversion circuit (13) and a coding circuit (14), wherein the input end of the DA digital-to-analog conversion circuit (13) is connected with the coding circuit (14), and the output end of the DA digital-to-analog conversion circuit is connected with the modulation circuit (12); for coupling the information to be transmitted to the power supply cable.
3. The switch of claim 1, wherein: the communication receiving unit (19) is composed of a demodulation circuit (20), an AD analog-to-digital conversion circuit (21) and a decoding circuit (22), wherein the input end of the AD analog-to-digital conversion circuit (21) is connected with the demodulation circuit (20), and the output end of the AD analog-to-digital conversion circuit is connected with the decoding circuit (22); the system is used for demodulating, sampling and translating the electric signals on the power supply cable into command information.
4. The switch of claim 1, wherein: the magnetoelectric detonator excitation driving circuit (27) consists of a frequency generator (30), a second power driving circuit (28), a first ignition output terminal (29) and a first ignition voltage acquisition circuit (31); the input of the second power driving circuit (28) is connected with the output end of the frequency generator (30), the output of the second power driving circuit is connected with the input of the first ignition output terminal (29), and the first ignition output terminal (29) is provided with an output port for connecting a magnetoelectric detonator/magnetoelectric igniter (38) outside the switch.
5. The switch of claim 4, wherein: the first ignition voltage acquisition circuit (31) is connected between the first ignition output terminal (29) and the microprocessor (18) and is used for feeding back acquired voltage information through the microprocessor (18).
6. The switch of claim 1, wherein: the high-resistance detonator excitation driving circuit (32) consists of a third power driving circuit (33), a second ignition output terminal (34) and a second ignition voltage acquisition circuit (35); the output of the third power driving circuit (33) is connected with the input of the second ignition output terminal (34), and the second ignition output terminal (34) is provided with an output port for connecting a large-resistance detonator/large-resistance igniter (39) outside the switch.
7. The switch of claim 6, wherein: and the second ignition voltage acquisition circuit (35) is connected between the second ignition output terminal (34) and the microprocessor (18) and is used for feeding back acquired voltage information through the microprocessor (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020339630.2U CN211692419U (en) | 2020-03-17 | 2020-03-17 | Intelligent selective switch for cable conveying bridge plug and perforation combined operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020339630.2U CN211692419U (en) | 2020-03-17 | 2020-03-17 | Intelligent selective switch for cable conveying bridge plug and perforation combined operation |
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| CN211692419U true CN211692419U (en) | 2020-10-16 |
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| CN202020339630.2U Expired - Fee Related CN211692419U (en) | 2020-03-17 | 2020-03-17 | Intelligent selective switch for cable conveying bridge plug and perforation combined operation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554852A (en) * | 2020-12-25 | 2021-03-26 | 西安茂泽电子科技有限公司 | Self-adaptive intelligent selective-firing switch for detonating underground perforating detonator |
-
2020
- 2020-03-17 CN CN202020339630.2U patent/CN211692419U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554852A (en) * | 2020-12-25 | 2021-03-26 | 西安茂泽电子科技有限公司 | Self-adaptive intelligent selective-firing switch for detonating underground perforating detonator |
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Effective date of registration: 20210722 Address after: 710200 Jinghe Industrial Park, Gaoling District, Xi'an City, Shaanxi Province Patentee after: XI'AN FANGYUAN ENERGY ENGINEERING Co.,Ltd. Address before: 710071 No. 6, floor 5, building 3, Fengze science and Technology Park, Xiliu Street office, high tech Zone, Xi'an, Shaanxi Province Patentee before: Xi'an MAOZe Electronic Technology Co.,Ltd. |
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Granted publication date: 20201016 |
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