CN109025926B - Centralized control type intelligent separate-layer water injection string and regulation and control system - Google Patents
Centralized control type intelligent separate-layer water injection string and regulation and control system Download PDFInfo
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- CN109025926B CN109025926B CN201811035203.9A CN201811035203A CN109025926B CN 109025926 B CN109025926 B CN 109025926B CN 201811035203 A CN201811035203 A CN 201811035203A CN 109025926 B CN109025926 B CN 109025926B
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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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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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
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
Abstract
The invention discloses a centralized control type intelligent separate-layer water injection pipe column and a regulation and control system, wherein the pipe column comprises a well mouth sound wave communication device, a cable-passing integrated type intelligent water distribution packer, a cable-passing single intelligent water distributor, an intelligent regulation and control system and a downhole sound wave communication device, wherein the cable-passing integrated type intelligent water distribution packer is arranged in a downhole pipe column and is connected with a cable joint in series from top to bottom along a separate injection oil pipe; the well mouth sound wave communication device and the underground sound wave communication device construct a set of underground and ground wireless communication system; the integrated control module uniformly controls flow monitoring and regulation and pressure monitoring, and the intelligent regulation and control system optimizes the regulation and control sequence; the cable-passing integrated intelligent water distribution packer integrates 2 intelligent water distributors and 1 packer. The invention solves the problem of wireless bidirectional transmission of the underground data of the existing intelligent separate injection pipe column, realizes data sharing among underground intelligent water distribution devices, improves allocation efficiency, simplifies the structure of the existing intelligent separate injection pipe column and improves the intelligent level of a separate injection well.
Description
Technical Field
The invention relates to the technical field of oilfield exploitation, in particular to a centralized control type intelligent separate-layer water injection string and a regulation and control system.
Background
The water flooding development is a method for keeping the pressure of an oil layer, realizing high and stable yield of an oil field and improving the most economical, mature and potential development effect of the oil field. In the reservoir stratum of the oil field in China, 92 percent of the reservoir stratum is terrestrial clastic rock deposition, and the heterogeneity is strong. In order to strengthen water injection of medium and low permeable layers and improve the water drive development effect, the layered water injection technology is one of the main attack directions of an oil field development system. The number of the separate injection wells is increased, the contradiction between the measuring and regulating workload and the low efficiency of the existing measuring and regulating technology is also in a serious trend, and meanwhile, dynamic monitoring and fine water injection cannot be realized, which causes huge loss on the water injection development efficiency of the oil field. Therefore, real-time monitoring and deployment technology is a significant problem that must be faced and solved in oilfield zonal waterflood development.
The intelligent separate injection technology is a technology which is gradually developed in recent years and is used for realizing real-time monitoring and allocation of a water injection well, has received extensive attention, and domestic oil fields are researched to form two intelligent separate-layer water injection pipe columns of a cable type and a cable-free type. The cable type intelligent separate injection pipe column realizes bidirectional communication through a cable, but increases the cost and the construction difficulty; the cableless intelligent separate injection pipe column adopts wireless communication (electromagnetic wave, pressure wave or sound wave), such as: (1) the application number is 201510900444.5 a kind of separate injection well intelligence measure and regulate and monitor the process unit and measure and regulate and monitor the method, its tubular column characteristic is to adopt the electromagnetic wave communication of the close range, the disadvantage is that the wireless communication distance is short, the scene is not away from people, car, instrument, the on-the-spot operation is still complicated, the intelligent level is not high, the intelligent water distribution apparatus is independent each other in the pit at the same time, each needs to be equipped with the wireless communication module; (2) the application number is 201710455016.5 an intelligent water distribution device and long-range automatic water distribution system that surveys of it, its characteristics are ground and downhole two-way communication, and what kind of wireless communication mode is unknown, and the shortcoming is that intelligent water distribution device mutual independence, data do not share, and every need be equipped with wireless communication module, and the frequency of current intelligent water distribution device in pit periodic monitoring and allotment is fixed simultaneously, especially can't encrypt the monitoring to the water injection initial stage.
Disclosure of Invention
In order to overcome the defects, the invention provides a centralized control type intelligent separate-layer water injection string and a regulation and control system, which solve the problem of bidirectional and rapid transmission of the existing intelligent separate-injection underground data, realize sharing of water distribution data of each underground layer, improve multilayer allocation efficiency, simplify the structure of the intelligent separate-injection string, improve underground monitoring and allocation controllability, and improve the allocation intelligent level of a separate-injection well.
The technical scheme adopted by the invention for solving the technical problems is as follows: a centralized control type intelligent separate-layer water injection pipe column comprises an integrated control module, an intelligent control system, a well mouth sound wave communication device, a cable-passing integrated type intelligent water distribution packer, a cable-passing packer and an underground sound wave communication device, wherein the cable-passing integrated type intelligent water distribution packer, the cable-passing packer and the underground sound wave communication device are arranged in the underground pipe column and are connected in series along a separate injection oil pipe from top to bottom through a cable and a cable joint; the cable-passing integrated intelligent water distribution packer is characterized in that two flow channels are arranged on a water distribution main body of the cable-passing integrated intelligent water distribution packer and respectively correspond to two adjacent water injection layers, and each water injection flow channel is provided with a flow regulating mechanism and a flow metering mechanism.
In a preferred embodiment of the invention, the intelligent separated layer water injection pipe column further comprises a single cable-passing intelligent water distributor arranged between the cable-passing packer and the downhole acoustic communication device, the single cable-passing intelligent water distributor comprises a single flow monitoring and adjusting unit and an internal and external pressure monitoring unit, the integrated control module is used for centrally controlling the single flow monitoring and adjusting unit and the internal and external pressure monitoring unit, and a water outlet of the single cable-passing intelligent water distributor is connected with another water injection layer.
In a preferred embodiment of the present invention, the cable-through integrated intelligent water distribution packer further comprises a first flow monitoring and controlling unit, a second flow monitoring and controlling unit, a packing unit, an internal and external pressure monitoring unit, a first tapping cable, a second tapping cable and a power module, wherein the first flow monitoring and controlling unit and the second flow monitoring and controlling unit are connected to the integrated control module through cables, the integrated control module centrally controls the first flow monitoring and controlling unit, the second flow monitoring and controlling unit and the internal and external pressure monitoring unit, one end of the first tapping cable and one end of the second tapping cable are respectively connected to the integrated control module, the other end of the first tapping cable and the other end of the second tapping cable extend out of the cable-through integrated intelligent water distribution packer, and a packing unit is arranged between the first flow monitoring and controlling unit and the second flow monitoring and controlling unit, pressure sensors are arranged in front of each water injection flow channel and behind the flow monitoring and regulating unit to form an internal and external pressure monitoring unit, and when the cable-passing integrated intelligent water distribution packer is located at the topmost end of the tubular column tool, only a second outgoing cable is needed.
In a preferred embodiment of the invention, the integrated control module can be arranged in the cable-through integrated intelligent water distribution packer or the cable-through single intelligent water distributor according to requirements.
In a preferred embodiment of the present invention, the intelligent control system receives the command received by the downhole acoustic communication device, transmits the ground command to the integrated control module, receives the test data from the integrated control module, and transmits the test data to the downhole acoustic communication device.
In a preferred embodiment of the invention, the intelligent control system analyzes whether the water injection layers conform to each other according to the water injection allocation instructions of each layer, and sends out a new adjusting instruction after optimizing the adjusting sequence.
In a preferred embodiment of the invention, the downhole acoustic communication device is mounted at the bottom end of the pipe column and is responsible for instruction receiving and test data uploading, the downhole acoustic communication device further comprises a shell, an electronic cabin arranged at one end of the shell and a single-flow well flushing valve arranged inside the shell, and a transceiving control system is arranged in the electronic cabin.
In a preferred embodiment of the invention, the intelligent regulation system is located on the integrated control module or in the electronic cabin.
In a preferred embodiment of the invention, the hardware of the intelligent control system, the transceiving control system and the integrated control module system adopts a read-write mode.
The invention also discloses a centralized control type intelligent stratified water injection regulation and control system, which comprises 5 working states of dormancy, regular monitoring, allocation, data uploading and system modification, wherein the allocation comprises injection allocation quantity adjustment and regular allocation, and the 5 working states can be circulated:
dormancy: when normal water injection is carried out, the cable-passing intelligent water distribution packer and the cable-passing packer are set, all water injection layers are separated, injected water enters two adjacent water injection layers through two water outlets of the cable-passing intelligent water distribution packer, a water outlet of the cable-passing single intelligent water distributor enters the other water injection layer, and the intelligent control system is in a dormant state;
and (3) regular monitoring: the intelligent regulation and control system sends a data acquisition instruction to the integrated control module periodically according to the monitoring frequency set by the system, the integrated control module controls the cable intelligent water distribution packer and the flow monitoring unit and the pressure monitoring unit in the cable single intelligent water distributor to acquire data, and the acquired data are fed back to the intelligent regulation and control system to be stored;
adjusting the injection allocation amount:
(1) the wellhead sound wave communication device sends out an N-layer injection allocation quantity adjusting instruction, and the number N of the injection allocation quantity layers is the same as that of the water injection layers;
(2) the underground sound wave communication device receives the injection allocation adjustment instruction and transmits the instruction to the intelligent regulation and control system;
(3) the intelligent regulation and control system sends a data acquisition instruction to the over-integrated control module, the integrated control module controls the cable intelligent water distribution packer and the cable single intelligent water distributor to acquire data, feeds the data back to the intelligent regulation and control system and automatically optimizes and adjusts the steps according to the acquired actual flow, pressure parameters and injection allocation quantity of each layer; the intelligent regulation and control system sends an adjustment instruction to the integrated control module according to the optimization steps, the integrated control module controls the cable intelligent water distribution packer and the cable single intelligent water distributor to perform adjustment, after the first adjustment step is performed, each layer automatically feeds back the adjusted flow to the intelligent regulation and control optimization system, and the next optimization and adjustment are performed again until the flow is qualified;
(4) the intelligent regulation and control system transmits the qualified data to the underground sound wave communication device, and the data is coded and transmitted according to a set coding program;
(5) the wellhead sound wave communication device receives the data, acquires the data according to a decoding rule and displays the data at a computer end;
and (3) regular blending: the intelligent regulation and control system regularly executes the step (3) of adjusting the injection allocation quantity according to the allocation frequency set by the system, stores the flow before and after the adjustment of each layer and executes the data uploading state;
and (3) data uploading:
(1) the intelligent control system transmits the stored data to the sound wave transmitting module of the underground sound wave communication device;
(2) the transmitting module encodes the data according to a set encoding program and transmits the data to the transducer for transmission;
(3) a sound wave signal monitoring module of the wellhead sound wave communication device monitors a data return instruction, obtains a deployment result according to a decoding rule, and stores and displays the deployment result at a computer end;
(4) and the intelligent control system deletes the stored data.
And (3) system modification:
(1) the wellhead sound wave communication device sends out a system modification instruction;
(2) receiving system modification instructions by the underground sound wave communication device, acquiring working system parameters according to decoding rules and delivering the working system parameters to an intelligent regulation and control system;
(3) the intelligent regulation and control system executes monitoring frequency, allocation frequency and data uploading frequency modification.
The invention has the beneficial effects that: the acoustic communication device has a bidirectional communication function by adopting the receiving and combining energy-replacing device, has high acoustic communication speed, can transmit instructions to the underground, and can feed data back to the wellhead in real time, thereby meeting the requirements of dynamic monitoring and real-time allocation of the water injection well; compared with the traditional trial and error method for regulating the flow, the invention adopts the cable to realize the sharing of monitoring data of each underground layer, and the intelligent regulation and control optimization system can optimize the regulation sequence according to the actual injection quantity and the injection allocation quantity of each underground layer, thereby reducing blind regulation, shortening underground regulation time, prolonging the service life of an underground battery and the effective period of a separate injection pipe column; compared with the existing intelligent separate injection pipe column, the underground intelligent water distribution devices on all layers do not need to be provided with a communication module and a control module separately, and only one underground sound wave communication device and an integrated control module are needed, so that module sharing is realized, the pipe column structure is simplified, and the cost is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a cabled integrated intelligent water distribution packer;
FIG. 3 is a schematic view of a downhole acoustic communication device;
FIG. 4 is a schematic diagram of a cable-over-cell intelligent water distributor configuration;
in the figure: 1. a well mouth acoustic wave communication device, 2, a cable-passing integrated intelligent water distribution packer, 2-1, a first flow monitoring and regulating unit, 2-2, a second flow monitoring and regulating unit, 2-3, a packing unit, 2-4, an internal and external pressure monitoring unit, 2-5, a first outlet cable, 2-6, a second outlet cable, 2-7, an integrated control module, 2-8, a power supply module, 3, a cable-passing packer, 4, a cable-passing single intelligent water distributor, 4-1, a single flow monitoring and regulating unit, 4-4, a single internal and external pressure monitoring unit, 4-5, a first single outlet cable, 4-6, a second single outlet cable, 4-7, a single power supply, 5, a separate injection oil pipe, 6, a downhole acoustic wave communication device, 6-1, a single flow well washing valve, 6-2, a receiving and transmitting combined transducer, 6-3, an electronic cabin, 6-4, a shell, 6-5, an intelligent control system, 6-6, an underground cable, 7, an underground cable, 8, a cable quick connector, 9, an upper water injection layer, 10, a middle water injection layer and 11, a lower water injection layer.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Example (b): take two-stage three-layer centralized control type intelligent separate layer water injection pipe column and regulation and control system as an example:
as shown in figures 1 to 4, the centralized control type intelligent separate-layer water injection string comprises an integrated control module 2-7, an intelligent control system 6-5, a wellhead sound wave communication device 1, a cable-through integrated intelligent water distribution packer 2, a cable-through packer 3 and a downhole sound wave communication device 6, wherein the cable-through integrated intelligent water distribution packer 2 is arranged in the downhole string from top to bottom through cables and cable joints in series along a separate injection oil pipe 5, the intelligent control system 6-5 is arranged in an electronic cabin 6-3, a cable-through single intelligent water distributor 4 is further arranged between the cable-through packer 3 and the downhole sound wave communication device 6, the cable-through single intelligent water distributor 4 is connected with the cable-through packer 3 and the downhole sound wave communication device 6 through cables and cable joints, a water outlet of the cable-through single intelligent water distributor 4 is connected with a lower water injection position 11, and an upper water distribution body of the cable-through integrated intelligent water distribution, The lower two flow channels, the water outlet of the lower water injection flow channel is arranged at the lower end of the packing unit 2-3, the upper water injection flow channel and the lower water injection flow channel respectively correspond to the adjacent upper water injection layer 9 and the middle water injection layer 10 to realize the optimization of the structure of the pipe column, each water injection flow channel is provided with a flow regulating mechanism and a flow metering mechanism, the pipe column is prepared according to the requirements of the well depth in the water injection well to be injected, the underground acoustic communication device 6, the cable-through single intelligent water distributor 4, the cable-through packer 3 and the cable-through intelligent water distributor 2 are sequentially injected, in order to realize the sharing of the monitoring data of each layer in the well, all underground tools of the invention are provided with a cable-through structure, the underground cable-through intelligent water distributor 2, the cable-through packer 3 and the cable-through single intelligent water distributor 4 are connected in series by using a cable 7 and a cable quick, data is transmitted to an intelligent regulation and control system 6-5 of an underground sound wave communication device 6 through a cable 7 in a unified mode, data sharing and centralized processing are achieved, after the cable communication is verified to be normal, a dispensing pipe column 5 is connected to a well head through a cable intelligent water distribution packer 2, finally, a well head sound wave communication device 1 is installed at the well head, a set of two-stage three-layer centralized control type intelligent layering water injection pipe column and a regulation and control system are formed, in order to achieve regulation and control and monitoring of underground layering flow on the ground, receiving and sending combined type transducers 6-2 are arranged in the well head sound wave communication device 1 and the underground sound wave communication device 6, the receiving and sending combined type transducers 6-2 comprise a sound wave signal monitoring receiving module and a transmitting module, the well head sound wave communication device 1 and the underground sound wave communication device 6 form a set of underground and ground wireless communication system to achieve data bidirectional, the underground wave communication device 2 adopts high-temperature-resistant, high-pressure-resistant and low-power-consumption electronic components and high-energy batteries, the used power supply batteries adopt a mode of connecting in parallel and then connecting in series, and the transmitting voltage is up to 110V.
As shown in figure 2, the cable-through integrated intelligent water distribution packer 2 further comprises a first flow monitoring and regulating unit 2-1, a second flow monitoring and regulating unit 2-2, a packing unit 2-3, an internal and external pressure monitoring unit 2-4, a first outgoing cable 2-5, a second outgoing cable 2-6 and a power module 2-8, wherein the first flow monitoring and regulating unit 2-1 and the second flow monitoring and regulating unit 2-2 are connected with an integrated control module 2-7 through cables, the integrated control module 2-7 centrally controls the first flow monitoring and regulating unit 2-1, the second flow monitoring and regulating unit 2-2 and the internal and external pressure monitoring unit 2-4, one end of the first outgoing cable 2-5 and one end of the second outgoing cable 2-6 are respectively connected with the integrated control module 2-7, the other end of the first outlet cable 2-5 and the other end of the second outlet cable 2-6 extend out of the cable integrated intelligent water distribution packer 2, a packing unit 2-3 is arranged between the first flow monitoring and regulating unit 2-1 and the second flow monitoring and regulating unit 2-2, pressure sensors are arranged in front of each water injection flow channel and behind the first flow monitoring and regulating unit 2-1 and the second flow monitoring and regulating unit 2-2 to form an internal and external pressure monitoring unit, when the cable-integrated intelligent water distribution packer is positioned at the topmost end of the tubular column tool, only the lower outlet cable 2-6 is needed, the injection amount of the upper water injection layer 9 is monitored and controlled by the first flow monitoring and regulating unit 2-1, and the injection amount of the middle water injection layer 10 is monitored and controlled by the second flow monitoring and regulating unit 2-2.
As shown in figure 4, the cable-passing single-body intelligent water distributor 4 comprises a single-body flow monitoring and regulating unit 4-1, a single-body internal and external voltage monitoring unit 4-4, a first single-body head-out cable 4-5, a second single-body head-out cable 4-6 and a single-body power supply 4-7, wherein one end of the first single-body head-out cable 4-5 and one end of the second single-body head-out cable 4-6 are connected with the single-body flow monitoring and regulating unit 4-1, the other ends of the first single-body head-out cable and the second single-body head-out cable are extended out of the cable-body intelligent water distributor, the single-body flow monitoring and regulating unit 4-1 monitors and regulates a bottom water injection layer 11, and when the.
As shown in fig. 3, the downhole acoustic communication device 6 is installed at the bottom end of the pipe column and is responsible for instruction receiving and test data uploading, the downhole acoustic communication device 6 further comprises a shell 6-4, an electronic cabin 6-3 arranged at one end of the shell, a single-flow well flushing valve 6-1 arranged inside the shell 6-4 and a downhole head outlet cable 6-6, a transceiving control system is arranged in the electronic cabin 6-3, in the embodiment, an intelligent regulation and control system 6-5 is arranged in the electronic cabin 6-3, data sharing of each layer is realized through the cable, the actual pressure, flow data and injection allocation data of each layer are used as input parameters, the optimal regulation step (meeting the injection allocation requirement) is automatically calculated, and the intelligent regulation and control system sends a regulation instruction to the integrated control modules 2-7 according to the optimization step.
The integrated control modules 2 to 7 can be arranged in the cable-through integrated intelligent water distribution packer 2 or the cable-through single intelligent water distributor 4 according to requirements, and the integrated control modules 2 to 7 are arranged in the cable-through integrated intelligent water distribution packer 2 in the embodiment.
The intelligent regulation and control system 6-5 is used for receiving the instruction received by the underground sound wave communication device, transmitting the ground instruction to the integrated control module, receiving the test data of the integrated control module and transmitting the test data to the underground sound wave communication device; and the intelligent control system 6-5 analyzes whether each water injection layer position accords with according to each layer injection allocation instruction, and sends out a new adjusting instruction after optimizing the adjusting sequence.
The hardware of the intelligent control system 6-5, the transceiving control system and the integrated control module 2-7 all adopt a readable and writable mode, so that the control of underground working parameters is realized.
Example (b): taking a two-stage three-layer centralized control type intelligent stratified water injection regulation and control system as an example, the whole system has 5 working states of dormancy, monitoring, allocation, data uploading and system modification, wherein the allocation comprises two conditions of injection allocation quantity regulation and regular allocation, and the five states of dormancy, monitoring, allocation, data uploading and system modification can be recycled and automatically used,
dormancy: when normal water injection is carried out, the cable-passing intelligent water distribution packer 2 and the cable-passing packer 3 are set, the upper water injection layer level 9, the middle water injection layer level 10 and the lower water injection layer level 11 are separated, injected water enters the upper water injection layer level 9 and the lower water injection layer level 10 through two water outlets of the cable-passing intelligent water distribution packer 2, a water outlet of the cable-passing single intelligent water distributor 4 enters the lower water injection layer level 11, and the intelligent regulation and control system 6-5 is in a dormant state;
and (3) regular monitoring: the intelligent regulation and control system 6-5 regularly sends a data acquisition instruction to the integrated control module 2-7 according to the monitoring frequency set by the system, the integrated control module 2-7 controls the first, second and single flow monitoring units to acquire data, and the acquired data are fed back to the intelligent regulation and control system to be stored;
adjusting the injection allocation amount:
(1) the wellhead acoustic communication device 1 sends out a 3-layer injection allocation amount adjusting instruction;
(2) the underground sound wave communication device 6 receives the injection allocation adjustment instruction and delivers the instruction to the intelligent regulation and control system 6-5;
(3) the intelligent regulation and control system 6-5 sends a data acquisition instruction to the integrated control module 2-7, the integrated control module 2-7 controls the flow monitoring and allocation units 2-1, 2-2 and 4-1 and the pressure monitoring units 2-4 and 4-4 of the cable intelligent water distribution packer 2 and the cable single intelligent water distributor 4 to acquire flow and pressure data of an upper layer, a middle layer and a lower layer, the flow and pressure data are fed back to the intelligent regulation and control system, and then according to the acquired flow and pressure parameters of each layer, the regulation step is calculated by combining the injection allocation instruction; the intelligent control system 6-5 sends an adjusting instruction to the integrated control module 2-7 according to the optimization steps, the integrated control module 2-7 controls the flow monitoring and allocating units 2-1, 2-2 and 4-1 of the cable intelligent water distribution packer 2 and the cable single intelligent water distributor 4 to adjust the flow, after the first round of adjustment is finished, the integrated control module 2-7 feeds the adjusted flow back to the intelligent control system 6-5, and the next round of optimization and adjustment is carried out again until the flow is qualified;
(4) the intelligent regulation and control system transmits the qualified data of 6-5 allocations to the underground sound wave communication device 6, and the data is transmitted after being coded according to a set coding program;
(5) the well head sound wave communication device 1 receives data, acquires the data according to a decoding rule and displays the data at a computer end;
and (3) regular blending: the intelligent regulation and control system 6-5 regularly executes the injection allocation quantity regulation state step (3) according to the allocation frequency set by the system, stores the flow before and after the regulation of each layer, and executes the data uploading state;
and (3) data uploading:
(1) the intelligent control system 6-5 transmits the stored data to a transmitting module of the underground sound wave communication device 6 for transmission;
(2) a sound wave signal monitoring module of the wellhead sound wave communication device 1 monitors a data return instruction, obtains a deployment result according to a decoding rule, and stores and displays the deployment result at a computer end;
(4) the intelligent control system 6-5 deletes the stored data.
And (3) system modification:
(1) the well head acoustic communication device 1 sends out a system modification instruction;
(2) the underground sound wave communication device 6 receives the system modification instruction, obtains the working system parameters according to the decoding rule and sends the working system parameters to the intelligent regulation and control system 6-5;
(4) the intelligent regulation and control system 6-5 performs monitoring frequency, deployment frequency and data upload frequency modification.
The centralized control type intelligent separate layer water injection string adopts a regular monitoring and allocation mode, and automatically executes a regular monitoring or regular allocation state when a monitoring or allocation period is reached; when the stratified injection amount changes, the injection amount adjustment state is executed.
The acoustic wave communication device has a bidirectional communication function by adopting the receiving and combining energy-replacing device, and solves the problem of wireless bidirectional transmission of underground data of the existing intelligent separate injection pipe column; meanwhile, the invention solves the problems of non-shared data and low allocation efficiency among the existing underground intelligent water distribution devices of the intelligent separate injection pipe column.
It is to be emphasized that: by utilizing different quantities of cable-passing integrated intelligent water distribution packers 2, cable-passing packers 3, cable-passing single intelligent water distributors 4 and underground sound wave communication devices 6, a one-stage two-section, two-stage three-section and three-stage four-section centralized control type intelligent separate-layer water injection pipe column and a regulation and control system can be formed.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a centralized control formula intelligence layering water injection regulation and control system which characterized in that: the system comprises an integrated control module, an intelligent regulation and control system, a wellhead sound wave communication device, a cable-passing integrated intelligent water distribution packer, a cable-passing packer and a downhole sound wave communication device, wherein the cable-passing integrated intelligent water distribution packer, the cable-passing packer and the downhole sound wave communication device are arranged in a downhole tubular column and are connected in series from top to bottom through a cable and a cable connector; the intelligent separated layer water injection pipe column further comprises a cable-passing single intelligent water distributor arranged between the cable-passing packer and the underground sound wave communication device, the cable-passing single intelligent water distributor comprises a single flow monitoring and adjusting unit and a single internal and external pressure monitoring unit, the integrated control module controls the single flow monitoring and adjusting unit and the internal and external pressure monitoring unit in a centralized manner, and a water outlet of the cable-passing single intelligent water distributor is connected with the other water injection layer;
the regulation and control system comprises 5 working states of dormancy, regular monitoring, allocation, data uploading and system modification, wherein the allocation comprises injection allocation adjustment and regular allocation, and the 5 working states can be circulated:
dormancy: when normal water injection is carried out, the cable-passing intelligent water distribution packer and the cable-passing packer are set, all water injection layers are separated, injected water enters two adjacent water injection layers through two water outlets of the cable-passing intelligent water distribution packer, a water outlet of the cable-passing single intelligent water distributor enters the other water injection layer, and the intelligent control system is in a dormant state;
and (3) regular monitoring: the intelligent regulation and control system sends a data acquisition instruction to the integrated control module periodically according to the monitoring frequency set by the system, the integrated control module controls the cable intelligent water distribution packer and the flow monitoring unit and the pressure monitoring unit in the cable single intelligent water distributor to acquire data, and the acquired data are fed back to the intelligent regulation and control system to be stored;
adjusting the injection allocation amount:
(1) the wellhead sound wave communication device sends out an N-layer injection allocation quantity adjusting instruction, and the number N of the injection allocation quantity layers is the same as that of the water injection layers;
(2) the underground sound wave communication device receives the injection allocation adjustment instruction and transmits the instruction to the intelligent regulation and control system;
(3) the intelligent regulation and control system sends a data acquisition instruction to the over-integrated control module, the integrated control module controls the cable intelligent water distribution packer and the cable single intelligent water distributor to acquire data, feeds the data back to the intelligent regulation and control system and automatically optimizes and adjusts the steps according to the acquired actual flow, pressure parameters and injection allocation quantity of each layer; the intelligent regulation and control system sends an adjustment instruction to the integrated control module according to the optimization steps, the integrated control module controls the cable intelligent water distribution packer and the cable single intelligent water distributor to perform adjustment, after the first adjustment step is performed, each layer automatically feeds back the adjusted flow to the intelligent regulation and control optimization system, and the next optimization and adjustment are performed again until the flow is qualified;
(4) the intelligent regulation and control system transmits the qualified data to the underground sound wave communication device, and the data is coded and transmitted according to a set coding program;
(5) the wellhead sound wave communication device receives the data, acquires the data according to a decoding rule and displays the data at a computer end;
and (3) regular blending: the intelligent regulation and control system regularly executes the step (3) of adjusting the injection allocation quantity according to the allocation frequency set by the system, stores the flow before and after the adjustment of each layer and executes the data uploading state;
and (3) data uploading:
(1) the intelligent control system transmits the stored data to the sound wave transmitting module of the underground sound wave communication device;
(2) the transmitting module encodes the data according to a set encoding program and transmits the data to the transducer for transmission;
(3) a sound wave signal monitoring module of the wellhead sound wave communication device monitors a data return instruction, obtains a deployment result according to a decoding rule, and stores and displays the deployment result at a computer end;
(4) the intelligent regulation and control system deletes the stored data;
and (3) system modification:
(1) the wellhead sound wave communication device sends out a system modification instruction;
(2) receiving system modification instructions by the underground sound wave communication device, acquiring working system parameters according to decoding rules and delivering the working system parameters to an intelligent regulation and control system;
(3) the intelligent regulation and control system executes monitoring frequency, allocation frequency and data uploading frequency modification.
2. The centralized control type intelligent stratified water injection regulation and control system as claimed in claim 1, wherein: the cable-passing integrated intelligent water distribution packer further comprises a first flow monitoring and regulating unit, a second flow monitoring and regulating unit, a packing unit, an internal and external pressure monitoring unit, a first outlet cable, a second outlet cable and a power module, wherein the first flow monitoring and regulating unit and the second flow monitoring and regulating unit are connected with the integrated control module through cables, the integrated control module is used for intensively controlling the first flow monitoring and regulating unit, the second flow monitoring and regulating unit and the internal and external pressure monitoring unit, one end of the first outlet cable and one end of the second outlet cable are respectively connected with the integrated control module, the other end of the first outlet cable and the other end of the second outlet cable extend out of the cable-passing integrated intelligent water distribution packer, the packing unit is arranged between the first flow monitoring and regulating unit and the second flow monitoring and regulating unit, and pressure sensors are arranged in front of each water injection flow channel and behind the flow monitoring and regulating unit, and forming an internal and external pressure monitoring unit.
3. The centralized control type intelligent stratified water injection regulation and control system as claimed in claim 1 or 2, wherein: the integrated control module is arranged in the cable-passing integrated intelligent water distribution packer or the cable-passing single intelligent water distributor and is used for centrally controlling the flow monitoring and adjusting unit and the pressure monitoring unit in the cable-passing integrated intelligent water distribution packer and the single intelligent water distributor.
4. The centralized control type intelligent stratified water injection regulation and control system as claimed in claim 1, wherein: the intelligent regulation and control system receives the instruction received by the underground sound wave communication device, transmits the ground instruction to the integrated control module, receives the test data of the integrated control module and transmits the test data to the underground sound wave communication device.
5. The centralized control type intelligent stratified water injection regulation and control system as claimed in claim 1 or 4, wherein: and the intelligent control system analyzes whether each water injection layer position accords with the injection allocation instruction of each layer, and sends out a new adjusting instruction after optimizing the adjusting sequence.
6. The centralized control type intelligent stratified water injection regulation and control system as claimed in claim 1, wherein: the underground sound wave communication device is arranged at the bottom end of the pipe column and is responsible for instruction receiving and test data uploading, the underground sound wave communication device further comprises a shell, an electronic cabin arranged at one end of the shell and a single-flow well flushing valve arranged inside the shell, and a receiving and sending control system is arranged in the electronic cabin.
7. The centralized control type intelligent stratified water injection regulation and control system as claimed in claim 6, wherein: the intelligent regulation and control system is arranged on the integrated control module or in the electronic cabin.
8. The centralized control type intelligent stratified water injection regulation and control system as claimed in claim 6, wherein: the intelligent control system, the transceiving control system and the integrated control module system adopt a readable and writable mode.
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| CN109915092A (en) * | 2018-12-21 | 2019-06-21 | 中国石油天然气股份有限公司 | A kind of central passage integrates the digital injection well downhole flow regulator of flowmeter |
| CN110284877B (en) * | 2019-05-25 | 2022-12-30 | 中国海洋石油集团有限公司 | Underground permanent dynamic monitoring device and monitoring method |
| CN110593827A (en) * | 2019-10-20 | 2019-12-20 | 中国石油化工股份有限公司 | Layered water injection method |
| CN111396002B (en) * | 2020-03-18 | 2022-04-08 | 弗润联科(北京)石油科技有限公司 | Underground wireless flow control valve tool with wireless duplex communication and system thereof |
| CN112065341A (en) * | 2020-09-15 | 2020-12-11 | 北京尊宏科技发展有限公司 | Single-well physical blockage removal and intelligent remote control measurement and fine adjustment layered water injection process for water injection well |
| CN112145138A (en) * | 2020-09-29 | 2020-12-29 | 大庆友声科技有限公司 | Water injection well wellhead underwater sound transmitting and receiving device and communication method |
| CN113323638A (en) * | 2021-06-04 | 2021-08-31 | 西安洛科电子科技股份有限公司 | Regulation and control separated layer water injection system using infrasonic wave and control method |
| CN117248872B (en) * | 2023-11-17 | 2024-02-06 | 贵州航天凯山石油仪器有限公司 | Underground integrated intelligent injection allocation device for realizing one allocation and two allocation and measuring and adjusting method |
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| US9945979B2 (en) * | 2013-08-02 | 2018-04-17 | Halliburton Energy Services, Inc. | Acoustic sensor metadata dubbing channel |
| CN105422061A (en) * | 2015-12-09 | 2016-03-23 | 中国石油天然气股份有限公司 | Intelligent testing and adjusting and monitoring technology device and testing and adjusting and monitoring method for separate injection well |
| CN107304669A (en) * | 2016-04-15 | 2017-10-31 | 贵州航天凯山石油仪器有限公司 | The improved method and intelligent watering device of a kind of injection well downhole flow regulator |
| CN205977205U (en) * | 2016-08-21 | 2017-02-22 | 中国石油化工股份有限公司 | Segmentation water injection well well head and shaft bottom signal wireless transceiver |
| CN106168126A (en) * | 2016-08-21 | 2016-11-30 | 中国石油化工股份有限公司 | A kind of layering section water injection well radio fest and control water dispensing apparatus and layering section water injection string thereof |
| CN106499372B (en) * | 2016-10-18 | 2019-09-03 | 中国石油天然气股份有限公司 | Integrated electromagnetic type flow meter intelligence distributor |
| CN107013194A (en) * | 2017-06-16 | 2017-08-04 | 南京叁拾壹度机电设备有限公司 | A kind of intelligent watering device and its remote auto survey allotment water system |
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