CN110593843A - Wireless carbon dioxide gas phase fracturing control method - Google Patents
Wireless carbon dioxide gas phase fracturing control method Download PDFInfo
- Publication number
- CN110593843A CN110593843A CN201910906562.5A CN201910906562A CN110593843A CN 110593843 A CN110593843 A CN 110593843A CN 201910906562 A CN201910906562 A CN 201910906562A CN 110593843 A CN110593843 A CN 110593843A
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- carbon dioxide
- blasting
- wireless
- dioxide blasting
- blasting unit
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 262
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 134
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 131
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000005422 blasting Methods 0.000 claims abstract description 156
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000007689 inspection Methods 0.000 claims description 18
- 230000001360 synchronised effect Effects 0.000 claims description 15
- 230000001788 irregular Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 6
- 238000005553 drilling Methods 0.000 abstract description 4
- 230000007257 malfunction Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/263—Methods for stimulating production by forming crevices or fractures using explosives
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a wireless carbon dioxide gas phase fracturing control method which comprises wireless communication, command sending and information feedback. The invention has the beneficial effects that: the wireless carbon dioxide gas phase fracturing control method can improve the safety and reliability of blasting operation; compared with the traditional wired connection, the carbon dioxide blasting network has greater advantages in organizing; the method is suitable for ground rock distribution blasting and mine underground deep drilling blasting; the starting engineering is more convenient and faster; the possibility of malfunction is reduced.
Description
Technical Field
The invention relates to a control method, in particular to a wireless carbon dioxide gas-phase fracturing control method, and belongs to the technical field of blasting operation.
Background
In the process of oil and gas well development, because most oil and gas reservoirs are generally low in permeability and cannot be developed commercially, the yield is increased, the drainage area of the reservoirs is increased, the flow conductivity of fractures is improved, and the purpose of increasing the daily yield recovery rate is achieved. The key technology of increasing the yield is to make cracks, form complex cracks in an oil and gas reservoir, form a crack network drainage area and increase the drainage area, wherein in the carbon dioxide gas-phase fracturing, 100% liquid C02 is used as a fracturing medium, a propping agent is pressurized and cooled to the pressure and the temperature of a liquid C02 storage tank, is mixed with liquid C02 in a special sand mixer, and is pumped into a shaft by a high-pressure fracturing pump for fracturing.
And for the existing carbon dioxide gas phase fracturing control method, firstly, the safety and reliability of blasting operation of the existing carbon dioxide gas phase fracturing control method cannot be improved, and certain potential safety hazards exist, secondly, when ground rock distribution blasting and mine underground deep drilling blasting are carried out by the existing carbon dioxide gas phase fracturing control method, a wired connection blasting system is adopted, so that a carbon dioxide blasting network is inconvenient to organize, and thirdly, the existing carbon dioxide gas phase fracturing control method cannot enable starting engineering to be more convenient and faster.
Disclosure of Invention
The invention aims to solve the problems and provide a wireless carbon dioxide gas phase fracturing control method.
The invention realizes the purpose through the following technical scheme: a wireless carbon dioxide gas phase fracturing control method comprises a remote central controller and a plurality of carbon dioxide blasting units, wherein the remote central controller is connected with the carbon dioxide blasting units through wireless signals, and the carbon dioxide blasting units are connected through wireless signals;
the control method comprises the following steps:
step A: wireless communication, the remote central controller intercommunicates with the one or more carbon dioxide blasting units through wireless signals;
and B: sending a command, wherein the remote central controller sends a control command and clock information to the carbon dioxide blasting unit through a wireless signal so as to control the shutdown, the start and the clock synchronism of the carbon dioxide blasting unit;
and C: and feeding back information, wherein the carbon dioxide blasting unit feeds back inspection information to the remote central controller through a wireless signal so as to inform the remote central controller of the current state of the carbon dioxide blasting unit.
Further, in the embodiment of the present invention, preferably, in order to enable the carbon dioxide blasting network to have greater advantages when organizing, the carbon dioxide blasting unit includes a wireless transmitting module, a wireless receiving module, a control switch module, a PLC, a modulation and demodulation module, a storage module, a timing module, a power supply module, a display module, and a time correction module.
Preferably, in order to improve the reliability of the blasting operation, the control method comprises two working modes: long-distance series synchronous/time-delay blasting mode and distributed parallel synchronous/time-delay blasting.
Preferably, in order to improve the safety of blasting operation, each of the carbon dioxide blasting units is packaged and then is arranged in one end of the carbon dioxide blasting tube, and the packaged carbon dioxide blasting units have waterproof, shockproof and antistatic functions.
Preferably, the carbon dioxide explosion unit can be reused in order to reduce costs.
Preferably, in order to eliminate potential safety hazards, each carbon dioxide blasting unit is provided with an independent power supply with rated voltage of 6v and rated current of 0.8A.
Preferably, in order to adapt to ground rock distribution blasting and mine downhole deep borehole blasting, the working frequency of wireless signals between the remote central controller and the carbon dioxide blasting units is 250HMz-450HMz, the propagation distance is 300 HMz-500 m, and the working frequency of wireless signals between the carbon dioxide blasting units is 316HMz, and the propagation distance is 5-100 m.
Preferably, in order to make the start-up process more convenient and faster, the components of the carbon dioxide blasting unit are integrated on an electronic main board through an integrated circuit.
Preferably, in order to reduce the possibility of misoperation, the specific working steps of the two working modes are as follows:
long-distance series synchronous/time-delay blasting mode:
i. initializing each carbon dioxide blasting unit;
ii, carbon dioxide blasting units are distributed in a series connection manner;
the remote central controller sends a control command and clock information to a first carbon dioxide blasting unit closest to the horizontal distance through a wireless signal;
and iv, the first carbon dioxide blasting unit is started after receiving the control command and the clock information, and then the control command and the clock information are sent to the second carbon dioxide blasting unit through wireless signals and started. Repeating the steps until the last carbon dioxide blasting unit is started automatically;
v, the remote central controller sends an inspection signal to the first carbon dioxide blasting unit through a wireless signal, the first carbon dioxide blasting unit sends an inspection signal to the second carbon dioxide blasting unit through the wireless signal, and the like until the inspection of the last carbon dioxide blasting unit is finished;
vi, setting blasting parameters by the remote central controller, and blasting;
distributed parallel synchronous/time-lapse blasting:
i. initializing each carbon dioxide blasting unit;
a circular or rectangular distribution or other irregular distribution of carbon dioxide blasting units;
the remote central controller sends a control command and clock information to each carbon dioxide blasting unit through wireless signals;
iv, each carbon dioxide blasting unit completes self-starting after receiving the control command and the clock information;
v, the remote central controller sends inspection signals to each carbon dioxide blasting unit through wireless signals, and each carbon dioxide blasting unit feeds inspection information back to the remote central controller through the wireless signals;
and vi, setting blasting parameters by the remote central controller, and implementing blasting.
Preferably, in order to prevent a certain safety hazard caused by too large blasting time error, the synchronous blasting time error is within 100 ms.
The invention has the beneficial effects that: the wireless carbon dioxide gas phase fracturing control method can improve the safety and reliability of blasting operation; compared with the traditional wired connection, the carbon dioxide blasting network has greater advantages in organizing; the method is suitable for ground rock distribution blasting and mine underground deep drilling blasting; the starting engineering is more convenient and faster; the possibility of malfunction is reduced.
Drawings
FIG. 1 is a schematic of the present invention;
fig. 2 is a schematic diagram of the module connection according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a wireless carbon dioxide gas phase fracturing control method includes a remote central controller and a plurality of carbon dioxide blasting units, wherein the remote central controller is connected with the carbon dioxide blasting units through wireless signals, and the carbon dioxide blasting units are connected through wireless signals;
the control method comprises the following steps:
step A: wireless communication, the remote central controller intercommunicates with the one or more carbon dioxide blasting units through wireless signals;
and B: sending a command, wherein the remote central controller sends a control command and clock information to the carbon dioxide blasting unit through a wireless signal so as to control the shutdown, the start and the clock synchronism of the carbon dioxide blasting unit;
and C: and feeding back information, wherein the carbon dioxide blasting unit feeds back inspection information to the remote central controller through a wireless signal so as to inform the remote central controller of the current state of the carbon dioxide blasting unit.
Further, in the embodiment of the present invention, the carbon dioxide blasting unit includes a wireless transmitting module, a wireless receiving module, a control switch module, a PLC, a modulation and demodulation module, a storage module, a timing module, a power supply module, a display module, and a time correction module, so that the carbon dioxide blasting network is organized with greater advantages.
Further, in the embodiment of the present invention, the control method has two operation modes: the long-distance serial synchronous/delayed blasting mode and the distributed parallel synchronous/delayed blasting mode improve the reliability of blasting operation.
Furthermore, in the embodiment of the invention, each carbon dioxide blasting unit is packaged and then is arranged in one end of the carbon dioxide blasting pipe, and the packaged carbon dioxide blasting unit has the functions of water resistance, shock resistance and static electricity resistance, so that the safety of blasting operation is improved.
Further, in the embodiment of the invention, the carbon dioxide blasting unit can be reused, so that the cost can be reduced.
Furthermore, in the embodiment of the invention, each carbon dioxide blasting unit is provided with an independent power supply with rated voltage of 6v and current of 0.8A, so that potential safety hazards are eliminated.
Further, in the embodiment of the invention, the working frequency of the wireless signal between the remote central controller and the carbon dioxide blasting unit is 250HMz-450HMz, the propagation distance is 300 HMz-500 m, the working frequency of the wireless signal between the carbon dioxide blasting units is 316HMz, and the propagation distance is 5-100m, so that the method is suitable for ground rock distribution blasting and mine underground deep borehole blasting.
Furthermore, in the embodiment of the invention, the components of the carbon dioxide blasting unit are integrated on an electronic mainboard through an integrated circuit, so that the starting engineering is more convenient and faster.
Further, in the embodiment of the present invention, the two operation modes specifically include the following operation steps:
long-distance series synchronous/time-delay blasting mode:
i. initializing each carbon dioxide blasting unit;
ii, carbon dioxide blasting units are distributed in a series connection manner;
the remote central controller sends a control command and clock information to a first carbon dioxide blasting unit closest to the horizontal distance through a wireless signal;
the first carbon dioxide blasting unit is started after receiving the control command and the clock information, then the control command and the clock information are sent to the second carbon dioxide blasting unit through wireless signals, the starting is carried out, and the like is carried out until the last carbon dioxide blasting unit is started;
v, the remote central controller sends an inspection signal to the first carbon dioxide blasting unit through a wireless signal, the first carbon dioxide blasting unit sends an inspection signal to the second carbon dioxide blasting unit through the wireless signal, and the like until the inspection of the last carbon dioxide blasting unit is finished;
and vi, setting blasting parameters by the remote central controller, and implementing blasting.
Distributed parallel synchronous/time-lapse blasting:
i. initializing each carbon dioxide blasting unit;
a circular or rectangular distribution or other irregular distribution of carbon dioxide blasting units;
the remote central controller sends a control command and clock information to each carbon dioxide blasting unit through wireless signals;
iv, each carbon dioxide blasting unit completes self-starting after receiving the control command and the clock information;
v, the remote central controller sends inspection signals to each carbon dioxide blasting unit through wireless signals, and each carbon dioxide blasting unit feeds inspection information back to the remote central controller through the wireless signals;
and vi, setting blasting parameters by the remote central controller, and implementing blasting.
Further, in the embodiment of the invention, the error of the synchronous blasting time is within 100ms, so that certain potential safety hazard caused by too large error of the blasting time is prevented.
According to the working principle, the wireless carbon dioxide gas-phase fracturing control method can improve the safety and reliability of blasting operation; compared with the traditional wired connection, the carbon dioxide blasting network has greater advantages in organizing; the method is suitable for ground rock distribution blasting and mine underground deep drilling blasting; the starting engineering is more convenient and faster; the possibility of malfunction is reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A wireless carbon dioxide gas phase fracturing control method comprises a remote central controller and a plurality of carbon dioxide blasting units, and is characterized in that: the remote central controller is connected with the carbon dioxide blasting units through wireless signals, and the carbon dioxide blasting units are connected through wireless signals;
the control method comprises the following steps:
step A: wireless communication, the remote central controller intercommunicates with the one or more carbon dioxide blasting units through wireless signals;
and B: sending a command, wherein the remote central controller sends a control command and clock information to the carbon dioxide blasting unit through a wireless signal so as to control the shutdown, the start and the clock synchronism of the carbon dioxide blasting unit;
and C: and feeding back information, wherein the carbon dioxide blasting unit feeds back inspection information to the remote central controller through a wireless signal so as to inform the remote central controller of the current state of the carbon dioxide blasting unit.
2. The wireless carbon dioxide gas phase fracturing control method of claim 1, wherein: the carbon dioxide blasting unit comprises a wireless transmitting module, a wireless receiving module, a control switch module, a PLC, a modulation and demodulation module, a storage module, a timing module, a power supply module, a display module and a time correction module.
3. The wireless carbon dioxide gas phase fracturing control method of claim 1, wherein: the control method comprises two working modes: long-distance series synchronous/time-delay blasting mode and distributed parallel synchronous/time-delay blasting.
4. The wireless carbon dioxide gas phase fracturing control method of claim 1, wherein: each carbon dioxide blasting unit is arranged at one end of the carbon dioxide blasting tube after being packaged, and the packaged carbon dioxide blasting units have the functions of water resistance, shock resistance and static electricity resistance.
5. The wireless carbon dioxide gas phase fracturing control method of claim 1, wherein: the carbon dioxide blasting unit can be reused.
6. The wireless carbon dioxide gas phase fracturing control method of claim 1, wherein: each carbon dioxide blasting unit is provided with an independent power supply with rated voltage of 6v and current of 0.8A.
7. The wireless carbon dioxide gas phase fracturing control method of claim 1, wherein: the working frequency of wireless signals between the remote central controller and the carbon dioxide blasting units is 250HMz-450HMz, the propagation distance is 300-500m, the working frequency of wireless signals between the carbon dioxide blasting units is 316HMz, and the propagation distance is 5-100 m.
8. The wireless carbon dioxide gas phase fracturing control method of claim 1, wherein: the carbon dioxide blasting unit is integrated on an electronic mainboard through an integrated circuit.
9. The wireless carbon dioxide gas phase fracturing control method of claim 3, wherein: the two working modes specifically comprise the following working steps:
long-distance series synchronous/time-delay blasting mode:
i. initializing each carbon dioxide blasting unit;
ii, carbon dioxide blasting units are distributed in a series connection manner;
the remote central controller sends a control command and clock information to a first carbon dioxide blasting unit closest to the horizontal distance through a wireless signal;
the first carbon dioxide blasting unit is started after receiving the control command and the clock information, then the control command and the clock information are sent to the second carbon dioxide blasting unit through wireless signals, the starting is carried out, and the like is carried out until the last carbon dioxide blasting unit is started;
v, the remote central controller sends an inspection signal to the first carbon dioxide blasting unit through a wireless signal, the first carbon dioxide blasting unit sends an inspection signal to the second carbon dioxide blasting unit through the wireless signal, and the like until the inspection of the last carbon dioxide blasting unit is finished;
vi, setting blasting parameters by the remote central controller, and blasting;
distributed parallel synchronous/time-lapse blasting:
i. initializing each carbon dioxide blasting unit;
a circular or rectangular distribution or other irregular distribution of carbon dioxide blasting units;
the remote central controller sends a control command and clock information to each carbon dioxide blasting unit through wireless signals;
iv, each carbon dioxide blasting unit completes self-starting after receiving the control command and the clock information;
v, the remote central controller sends inspection signals to each carbon dioxide blasting unit through wireless signals, and each carbon dioxide blasting unit feeds inspection information back to the remote central controller through the wireless signals;
and vi, setting blasting parameters by the remote central controller, and implementing blasting.
10. The wireless carbon dioxide gas phase fracturing control method of claim 1, wherein: and the error of the synchronous blasting time of the carbon dioxide blasting unit is within 100 ms.
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| CN106930744A (en) * | 2017-05-08 | 2017-07-07 | 河南理工大学 | A kind of millisecond multistage directional blasting dry ice fracturing method and blasting cartridge |
| CN206888981U (en) * | 2017-05-10 | 2018-01-16 | 山东名世矿业机械有限公司 | A kind of carbon dioxide fracturing device string big gun releases quick-fried device |
| CN107167039A (en) * | 2017-07-28 | 2017-09-15 | 张继强 | A kind of CO2Mining blasting cartridge delays to be segmented remote control initiator |
| CN107560509A (en) * | 2017-09-27 | 2018-01-09 | 贵州安凯达实业股份有限公司 | A kind of explosion attachment structure for photoface exploision |
| CN207832041U (en) * | 2018-01-24 | 2018-09-07 | 西安科技大学 | Coal and rock based on liquid carbon dioxide conducts fracturing device |
| CN108801068A (en) * | 2018-06-28 | 2018-11-13 | 方莹 | A kind of process using fracturing pipe fracturing rock |
| CN109098695A (en) * | 2018-08-02 | 2018-12-28 | 中国地质大学（武汉） | A kind of perforating and fracturing integrated apparatus and method based on carbon dioxide blasting technique |
| CN109974532A (en) * | 2019-05-13 | 2019-07-05 | 贵州大学 | A kind of carbon dioxide fracturing device string big gun releases quick-fried device |
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