CN112127849B - Control system for exploiting combustible ice - Google Patents
Control system for exploiting combustible ice Download PDFInfo
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- CN112127849B CN112127849B CN201910547212.4A CN201910547212A CN112127849B CN 112127849 B CN112127849 B CN 112127849B CN 201910547212 A CN201910547212 A CN 201910547212A CN 112127849 B CN112127849 B CN 112127849B
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- 239000007788 liquid Substances 0.000 claims abstract description 40
- 238000004891 communication Methods 0.000 claims abstract description 33
- 238000012544 monitoring process Methods 0.000 claims abstract description 25
- 238000005065 mining Methods 0.000 claims abstract 3
- 230000003287 optical effect Effects 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 239000012429 reaction media Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 14
- 239000012071 phase Substances 0.000 abstract description 8
- 239000007791 liquid phase Substances 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 38
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 10
- 239000000839 emulsion Substances 0.000 description 7
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 7
- 239000003345 natural gas Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/2401—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection by means of electricity
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
Abstract
The invention discloses a combustible ice mining control system, which consists of a control module, a communication module, a monitoring module, a display module and a micro-interface module, wherein the control module realizes the regulation and control of the flow, the temperature and the pressure of the whole system, and controls the mixing process of gas phase and liquid phase of the micro-interface module through a gas control circuit and a liquid control circuit, the communication module realizes the communication among the modules of the system, the monitoring module monitors the change of the flow, the temperature and the pressure in the system and feeds back the change to the control module, the display module can display the current data condition of the system in real time, and the modules cooperate with each other to complete the control of the whole combustible ice mining process.
Description
Technical Field
The disclosure relates to the field of intelligent control systems, in particular to a control system for exploiting combustible ice.
Background
The combustible ice is distributed in deep sea sediment or permafrost in land areas, and is formed by natural gas and water under high pressure and low temperature conditions to form ice-like crystal substances. At present, the resource amount of combustible ice is proved to be twice of the total carbon amount of the traditional fossil fuel in the world, and the natural gas content is 60 times of the resource amount of the natural gas, so that the combustible ice has great exploitation value. Because the formation condition of the combustible ice is high pressure and low temperature, once the pressure is lost or the temperature is increased, the combustible ice can be changed into gas, natural gas steam is decomposed from solid state by utilizing the characteristic that the combustible ice is decomposed when the temperature is increased, and then the natural gas steam is conveyed to a ground collection platform, so that the exploitation of the combustible ice is finished, and the method is generally called as a pyrolysis method.
The pyrolysis method is generally used for exploiting combustible ice by injecting heated saturated saline water containing glycol into exploitation well and finally separating out the glycol. On one hand, the ethylene glycol is expensive and has high cost for commercial exploitation, and on the other hand, the ethylene glycol is complicated to treat after being used and has great environmental pollution.
In the long run, the exploitation of the seabed combustible ice by adopting the new method is inevitable, and higher requirements can be put forward on an exploitation control system.
Disclosure of Invention
The purpose of this disclosure is to provide a exploitation combustible ice's control system to realize adjustment and control to combustible ice exploitation process.
The technical purpose of the present disclosure is achieved by the following technical solutions: a control system for exploiting combustible ice comprises a control module, a monitoring module, a communication module and a display module, wherein the control module is connected with the monitoring module, the communication module and the display module, and the control module comprises:
the main control circuit comprises a heating pipe control signal output end, a gas control signal output end, a liquid control signal output end and a temperature signal input end;
a processor module;
the heating pipe power supply circuit is connected with the temperature signal input end;
the gas control circuit is connected with the gas control signal output end;
the liquid control circuit is connected with the liquid control signal output end;
the monitoring module comprises a gas flowmeter, a gas concentration sensor, a liquid flowmeter, a temperature sensor and a pressure sensor, and is connected with the processor module.
Furthermore, the communication module, the monitoring module and the display module are all in bidirectional connection with the control module.
Furthermore, the communication module is connected with the control module in a bidirectional mode, and the monitoring module and the display module are respectively connected with the control module and the communication module in a unidirectional mode.
Furthermore, the gas control circuit and the liquid control circuit both comprise a delay timing circuit, and the delay timing circuit is mainly arranged for relieving the pressure of the control system.
Further, the control system also includes a micro-interface module including a micro-interface generator and a mixer body.
Preferably, the micro-interface generator is a bubble breaker and/or a droplet breaker; the device comprises a mechanical microstructure and/or a turbulent microstructure, and is used for crushing a gas phase and/or a liquid phase in the multi-phase reaction medium into a micro-bubble and/or micro-droplet emulsion with the diameter of micron order;
the mixer main body is a mixing chamber of gas-liquid, liquid-solid, gas-liquid, gas-liquid-solid and liquid-solid multi-phase reaction media.
Further, the micro-interface generator is connected with the gas control circuit, and the mixer main body is connected with the liquid control circuit.
Preferably, the communication module comprises an undersea optical cable and an optical modulator.
Preferably, the optical modulator comprises an electro-optic modulator, an acousto-optic modulator and/or a waveguiding optical modulator.
Preferably, the display module is an OLED module.
In conclusion, the beneficial effects of the present disclosure are: the utility model discloses a control system by control module, communication module, monitoring module, display module and little interface module constitute, control module realizes the regulation and control to entire system flow, temperature and pressure, and come control little interface module gas phase and the mixed process of liquid phase through gas control circuit and liquid control circuit, communication module realizes the communication between each module of system, flow in the monitoring module monitoring system, the change of temperature and pressure feeds back to control module, display module can real-time display each current data condition of system, each module cooperates each other and accomplishes the control to whole combustible ice exploitation process.
Drawings
FIG. 1 is a flow chart of a system communication scheme;
FIG. 2 is a flow chart of a system communication scheme;
FIG. 3 is a control module.
Detailed Description
The present disclosure is described in further detail below with reference to the attached drawing figures.
When the combustible ice is mined by a pyrolysis method, the characteristic that the combustible ice is heated to become gas is mainly utilized, so that saturated brine needs to be heated before being injected into a well. Because the combustible ice exists at least 3000 meters away from the sea level, the temperature of the heated saturated brine is gradually reduced when the heated saturated brine gradually goes downwards in a well, and in order to keep the temperature and the state of the saturated brine, a micro-interface strengthening technology is adopted, namely, micro-scale natural gas bubbles are injected into the saturated brine to enable the saturated brine to be in an emulsion state, so that the saturated brine is not easy to freeze at low temperature.
The control system for exploiting combustible ice by using the method comprises a control module, a monitoring module, a communication module, a display module and a micro-interface module, wherein the control module is connected with other modules. The control module comprises a main control circuit, a processor module, a heating pipe power supply circuit, a gas control circuit and a liquid control circuit.
The main control circuit comprises a heating pipe control signal output end, a gas control signal output end, a liquid control signal output end and a temperature signal input end. The gas control signal output end and the liquid control signal output end output signals to the gas control circuit and the liquid control circuit, the gas control circuit and the liquid control circuit control and adjust the flow of gas and liquid, the flow of the gas and the liquid is adjusted to form a gas-liquid mixture, the temperature signal input end inputs signals to the heating pipe control signal output end, the heating pipe control signal output end outputs signals to the heating pipe power supply circuit, the heating pipe power supply circuit starts to work, the gas-liquid mixture is heated, and the gas-liquid mixture is injected into a well when the gas-liquid mixture is heated to the temperature preset by the control system.
The micro-interface module includes a micro-interface generator and a mixer body. Generally, the mixer main body is a mixing chamber of gas-liquid, liquid-solid, gas-liquid, gas-liquid-solid and liquid-solid multiphase reaction media, and the mixer main body includes a tank mixer, a tube mixer, a tower mixer, a fixed bed mixer or a fluidized bed mixer, etc.
The micro interface generator is a bubble breaker and/or a droplet breaker, and comprises a mechanical microstructure and/or a turbulent microstructure, and a gas phase and/or a liquid phase in the multi-phase reaction medium are broken into micro-bubbles and/or micro-droplet emulsion with micron-sized diameter by a micro-channel action mode, a field force action mode and a mechanical energy action mode, or any combination of the three modes. Wherein, the micro-channel action mode is that the micro-structure of the flow channel is constructed, so that the gas phase and/or the liquid phase passing through the micro-channel are/is broken into micro-bubbles and/or liquid drops; the field force action mode is that the external field force is used for acting in a non-contact mode to input energy to the fluid, so that the fluid is broken into micro-bubbles or micro-droplet emulsion; the mechanical energy action mode is to convert the mechanical energy of the fluid into the surface energy of bubbles or liquid drops so as to break the bubbles or liquid drops into micro-bubbles or micro-liquid-drop emulsion.
By way of example, the micro-interfacial surface generator is any physical plane having holes therethrough, each hole comprising a gas inlet and a gas outlet, the width of the gas outlet being greater than the width of the gas inlet, and if micron-sized bubbles are to be generated, the average width of the gas outlet is from 5 microns to 90 microns and the average width of the gas inlet is from 1 micron to 5 microns. And the holes become gradually smaller in the direction from the gas inlet to the gas outlet.
The micro-interface generator is connected with a gas control circuit, and the gas control circuit controls the content and time of gas entering the micro-interface generator and controls the process of breaking the gas into micro-bubbles and/or micro-droplet emulsion. The mixer main body is connected with a liquid control circuit, and the liquid control circuit controls the content of liquid entering the mixer main body and controls the reaction process of the liquid and the micro-bubble and/or micro-droplet emulsion.
The monitoring module comprises a gas flowmeter, a gas concentration sensor, a liquid flowmeter, a temperature sensor and a pressure sensor and is used for monitoring the concentration flow of gas and liquid in the well and the internal temperature and pressure, when the monitored data changes, the monitoring module is communicated with the processor module, and the processor module analyzes and processes the information and judges whether the control module is required to send an instruction to further change the flow of the gas or the liquid and the like so as to realize the data regulation and control of the whole system.
The communication module can adopt two kinds of communication methods, one is communication module and control module both way junction, and monitoring module and display module also all with control module both way junction, if monitoring module needs with the display module communication, monitoring module signals earlier for control module, and control module transmits signal again for communication module, and communication module received signal gives feedback to control module, and control module gives the display module with signal transmission at last. In this manner, the control module may communicate directly with the monitoring module and the display module, as shown in FIG. 1.
Secondly, as shown in fig. 2, the communication module is connected with the control module in a bidirectional manner, the monitoring module and the display module are connected with the control module in a unidirectional manner, the monitoring module and the display module are also connected with the communication module in a unidirectional manner, and communication among the modules can be directly connected with the communication module to obtain information.
Typically, the telecommunications module includes an undersea optical cable and an optical modulator.
The optical modulators include electro-optic modulators, acousto-optic modulators, and/or waveguiding optical modulators. The electro-optical modulator realizes optical modulation by using the change of the refractive index of an electro-optical crystal (such as lithium niobate) along with an external electric field, namely the electro-optical effect; the acousto-optic modulator realizes optical modulation by utilizing refractive index change, namely photoelastic effect, caused by strain generated by materials (such as lithium niobate) under the action of sound waves; the waveguide type optical modulator is a thin film optical waveguide manufactured on a substrate by using an integrated optical technology to realize electro-optic, magneto-optic or acousto-optic modulation.
The communication module transmits the electric signals to the control module, receives signals from the gas flowmeter, the gas concentration sensor, the liquid flowmeter and the like, converts the signals into optical signals through the optical modulator, establishes communication with land through the submarine optical cable, and modulates the acoustic signals.
The display module is an OLED module and the like.
The above description is only a preferred embodiment of the present disclosure, and the scope of the present disclosure is not limited to the above-described embodiments, but is defined by the claims and their equivalents.
Claims (6)
1. The utility model provides a control system of exploitation combustible ice, includes control module, monitoring module, communication module and display module, control module with monitoring module, communication module and display module are connected, its characterized in that, control module includes:
the main control circuit comprises a heating pipe control signal output end, a gas control signal output end, a liquid control signal output end and a temperature signal input end;
a processor module;
the heating pipe power supply circuit is connected with the temperature signal input end;
the gas control circuit is connected with the gas control signal output end;
the liquid control circuit is connected with the liquid control signal output end;
the monitoring module comprises a gas flowmeter, a liquid flowmeter, a gas concentration sensor, a temperature sensor and a pressure sensor and is connected with the processor module; the control system further comprises a micro-interface module comprising a micro-interface generator and a mixer body; the micro-interface generator is a bubble breaker and/or a droplet breaker, and comprises a mechanical microstructure and/or a turbulent flow microstructure;
the mixer main body is a mixing chamber of gas-liquid, liquid-solid, gas-liquid, gas-liquid-solid and liquid-solid multi-phase reaction media.
2. The control system for exploiting combustible ice according to claim 1, wherein the communication module, the monitoring module and the display module are all bidirectionally connected to the control module.
3. The control system for exploiting combustible ice according to claim 1, wherein the communication module is bidirectionally connected to the control module, and the monitoring module and the display module are unidirectionally connected to the control module and the communication module, respectively.
4. A control system for producing combustible ice according to any one of claims 1 to 3 wherein the communications module includes an undersea optical cable and an optical modulator.
5. The control system for mining combustible ice of claim 4, wherein the optical modulator comprises an electro-optic modulator, an acousto-optic modulator and/or a waveguiding optical modulator.
6. A control system for exploiting combustible ice according to any one of claims 1 to 3, wherein the display module is an OLED module.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547212.4A CN112127849B (en) | 2019-06-24 | 2019-06-24 | Control system for exploiting combustible ice |
| PCT/CN2020/096673 WO2020259376A1 (en) | 2019-06-24 | 2020-06-18 | Control system for combustible ice mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547212.4A CN112127849B (en) | 2019-06-24 | 2019-06-24 | Control system for exploiting combustible ice |
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| Publication Number | Publication Date |
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| CN112127849A CN112127849A (en) | 2020-12-25 |
| CN112127849B true CN112127849B (en) | 2021-07-23 |
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| CN201910547212.4A Active CN112127849B (en) | 2019-06-24 | 2019-06-24 | Control system for exploiting combustible ice |
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| CN (1) | CN112127849B (en) |
| WO (1) | WO2020259376A1 (en) |
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| Publication number | Publication date |
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| WO2020259376A1 (en) | 2020-12-30 |
| CN112127849A (en) | 2020-12-25 |
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