WO2025010874A1 - 波码分注自动控制方法及系统 - Google Patents
波码分注自动控制方法及系统 Download PDFInfo
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- WO2025010874A1 WO2025010874A1 PCT/CN2023/127814 CN2023127814W WO2025010874A1 WO 2025010874 A1 WO2025010874 A1 WO 2025010874A1 CN 2023127814 W CN2023127814 W CN 2023127814W WO 2025010874 A1 WO2025010874 A1 WO 2025010874A1
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- 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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- 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
- E21B47/00—Survey of boreholes or wells
Definitions
- the present invention relates to the field of communication technology, and in particular to a wave code injection automatic control method and system.
- the communication protocol between the ground control system and the downhole intelligent water distributor used in the current wave code layered water injection system is based on the original water injection experience of the understanding of the water absorption of the formation.
- the one-way communication transmission time is relatively long, and the allocation method requires manual work sitting in front of the computer to increase and decrease the pressure to adjust the flow of each layer.
- the allocation time is relatively long and requires professional operation.
- the embodiment of the present invention provides a wave code injection automatic control method for improving the wave code injection automatic control efficiency, the method comprising:
- the external and internal pressures of the oil pipe are collected in real time through the water distributor of the seal layer;
- the target value of layered flow is sent to the water distributors at each layer in the well;
- the embodiment of the present invention also provides a wave code dispensing automatic control system for improving the wave code dispensing automatic control efficiency, the system comprising: a control platform and a water distributor;
- Control platform used to send seal verification instructions
- the water distributor is used to close the water nozzle after receiving the seal verification instruction; collect the external pressure and internal pressure of the oil pipe in real time; send the packer seal failure instruction to the ground when the change trends of the external pressure and internal pressure of the oil pipe are consistent; send the packer seal validity instruction to the ground when the change trends of the external pressure and internal pressure of the oil pipe are inconsistent.
- the sealing inspection layer position number is determined according to the sealing inspection instruction; the water nozzle of the water distributor of the sealing inspection layer corresponding to the sealing inspection layer position number is closed; the external pressure and the internal pressure of the oil pipe are collected in real time through the water distributor of the sealing inspection layer; when the changing trends of the external pressure and the internal pressure of the oil pipe are consistent, the packer sealing failure instruction is sent to the ground; when the changing trends of the external pressure and the internal pressure of the oil pipe are inconsistent, the packer sealing effective instruction is sent to the ground; after receiving the deployment instruction, the stratified flow target value is sent to the water distributors of each layer in the well; and the measurement and adjustment of the water distributors of each layer are started at the same time;
- the measurement and adjustment of the water distributors of each layer are completed.
- the system automatically completes the sealing inspection of each layer of the packer in the well, and feeds back the sealing inspection results of the packer to the monitoring platform.
- the external pressure and internal pressure of the tubing are collected in real time through the water distributor of the sealing inspection layer, and the sealing inspection result is determined based on whether the change trends of the external pressure and internal pressure of the tubing are consistent, which improves the sealing inspection efficiency.
- the automatic measurement and adjustment is turned on, which improves the efficiency of automatic control of wave code injection and reduces the difficulty and cost of operation.
- FIG1 is a schematic flow chart of a wave code injection automatic control method provided by the present invention.
- FIG2 is a schematic flow chart of the automatic control method for wave code injection provided by the present invention.
- FIG3 is a schematic diagram of a wave code instruction sent from the surface to the underground provided by the present invention.
- FIG4 is a schematic diagram of the return code from underground to the surface provided by the present invention.
- FIG5 is a schematic diagram of a wave code injection automatic control system provided by the present invention.
- FIG6 is a schematic diagram of a water distributor provided by the present invention.
- FIG. 7 is a schematic structural diagram of a water nozzle provided by the present invention.
- FIG1 is a flow chart of an automatic control method for wave code injection provided by an embodiment of the present invention. As shown in FIG1 , the method includes:
- Step 101 after receiving the sealing inspection instruction, determine the sealing inspection layer number according to the sealing inspection instruction.
- Step 102 closing the water distributor faucet of the sealing layer corresponding to the sealing layer position number.
- Step 103 collecting the external pressure and internal pressure of the oil pipe in real time through the water distributor of the sealing layer.
- Step 104 when the changing trends of the external pressure of the oil pipe and the internal pressure of the oil pipe are consistent, a packer sealing failure instruction is sent to the ground.
- Step 105 when the changing trends of the external pressure of the oil pipe and the internal pressure of the oil pipe are inconsistent, sending a packer sealing effective instruction to the ground.
- a five-digit code is used to send a packer sealing effective instruction to the surface.
- the ground controller controls the pressure change in the wellbore, and the sealing layer water distributor detects whether the external and internal pressures of the tubing change synchronously. If they do not change synchronously, it means that the seal of the packer in the current layer is intact, and if they change synchronously, it means that the seal of the packer fails.
- the ground controller controls the pressure change in the wellbore, and the seal layer water distributor detects whether the external and internal pressures of the tubing change synchronously. If they do not change synchronously, the underground sends a command "1" to the ground; if they change synchronously, the underground sends a command "2" to the ground.
- the above scheme only needs to issue the seal inspection command on the control platform.
- the system automatically completes the seal inspection of each layer of the packer in the well, and feeds back the seal inspection results of the packer to the monitoring platform.
- the external and internal pressures of the tubing are collected in real time through the water distributor of the seal inspection layer, and the seal inspection results are determined based on whether the change trends of the external and internal pressures of the tubing are consistent, which improves the seal inspection efficiency, improves the efficiency of automatic control of wave code injection, and reduces the difficulty and cost of operation.
- the embodiment of the present invention After receiving the deployment instruction, the embodiment of the present invention has the following steps as shown in FIG2:
- Step 201 sending the stratified flow target value to each layer of water distributor in the well.
- the surface controller sends the layered flow target value to each layer of the underground water distributor through a wave code instruction.
- the wave code instruction consists of a wake-up bit, a data bit, and a check bit; the data bit consists of a layer number and a control instruction.
- the water distributors at each layer underground store the target flow rate of each layer and collect the current flow rate value in real time.
- Step 202 start the test and adjustment of the water distributors on each floor at the same time.
- the automatic measurement and adjustment function is enabled at each layer underground.
- Step 203 when the flow rate of each layer reaches the target value of the layered flow rate within the preset time period, the measurement and adjustment of the water distributors of each layer are ended.
- the above scheme only needs to issue allocation instructions on the remote control platform, and the system will automatically complete the stratified flow measurement and adjustment.
- the traditional wave code communication allocation method requires professionals to continuously reduce or increase the pressure, switch, and adjust the water nozzles of the downhole water distributor to achieve stratified flow allocation for the entire well. Compared with the existing technology, the allocation efficiency is improved.
- the ground controller sends wave code instructions to the downhole water distributor using binary coding rules, as shown in Figure 3, the data frame includes a wake-up bit 3T, data bits 8T (where the layer number is 3T and the control instruction is 5T), and a data check bit 1T, where T is the minimum code element, representing the minimum time unit of a high or low bit.
- a set of instruction codes consists of a wake-up bit, a data bit, and a check bit.
- the data bit consists of a layer number and a control instruction.
- the layer number is three bits, 000 to 110 represents layers 1 to 7 respectively, and the instruction bits 00000 to 11111 represent 32 instructions, each of which represents a different control.
- a low level of 1 T is used as the check end code to end the signal transmission.
- the wave code instruction consists of a wake-up bit, a data bit, and a check bit, which improves the communication efficiency.
- the code sent from underground to the surface adopts a quinary coding rule. Compared with the original decimal coding, the communication time is greatly shortened, and the number of underground motor actions and power consumption do not increase.
- a set of signal codes consists of a start code, a data code, and an end code. All three codes are low-order codes (low-order codes are valid); each code is separated by an interval code, which is a high-order code (high-order codes are valid).
- the downhole return code signal is a 2S fixed time low level (S is a time measurement unit) as the start code, followed by 1 to 3 data codes D1 to D3, which are used to send 1 to 3 digits, and the value is incremented by 1 every 5; after the 3-bit data code ends, a 2S time low level is used as the end code to end the signal transmission.
- the time required for communication is 5 seconds, which is 75% less than the traditional encoding where each digit takes 10 seconds.
- the faucet needs to be actuated twice, the energy consumption is reduced by half, and the service life of the faucet is extended to twice.
- the above encoding method improves communication efficiency, reduces the energy consumption of the water nozzle, reduces the number of times of replacing batteries when going up and down the well, reduces the workload and improves production efficiency.
- S1 The ground controller sends a deployment instruction to the underground water distributor.
- S2 The water distributors on each layer receive and store the flow target value in turn from top to bottom.
- S4 The ground controller maintains the constant current mode and cooperates with the underground to complete the measurement and adjustment.
- test and adjustment time may also be 2 minutes, 3 minutes, etc., and the embodiment of the present invention does not specifically limit this.
- FIG5 is a schematic diagram of a wave code injection automatic control system provided by an embodiment of the present invention. As shown in FIG5 , the system includes: a control platform 100 and a water distributor 300;
- the control platform 100 is used to send a seal verification instruction
- the water distributor 300 is used to close the water nozzle after receiving the seal verification instruction; collect the external pressure and internal pressure of the oil pipe in real time; when the changing trends of the external pressure and internal pressure of the oil pipe are consistent, send the seal failure instruction of the packer to the ground; when the changing trends of the external pressure and internal pressure of the oil pipe are inconsistent, send the seal validity instruction of the packer to the ground.
- a ground controller 200 In the embodiment of the present invention, it further includes: a ground controller 200;
- the control platform 100 is also used to send deployment instructions
- the ground controller 200 is used to send a layered flow target value after receiving a deployment instruction
- the water distributor 300 is also used to start measurement and adjustment; when the flow rate of each layer reaches the target value of the layered flow rate within a preset time period, the measurement and adjustment is ended.
- the water distributor 300 is specifically used for:
- the surface controller 200 is specifically used to send the layered flow target value to each layer of the underground water distributor through wave code instructions.
- the water distributor includes an upper joint, an outer protective tube, a circuit board battery, a motor battery, a main control circuit, a lower joint, a central flow channel, a faucet, a pressure detection sensor and a flow meter; the lower end outer circumference of the upper joint is screwed into the upper port of the outer protective tube, the upper outer circumference of the lower joint is screwed into the lower port of the outer protective tube, and the lower port of the central flow channel is pressed on the top of the lower joint; the circuit board battery, the motor battery and the main control circuit are placed in the annulus of the outer protective tube and the central flow channel; the faucet is connected to the lower joint through threads, and the pressure detection sensor and the flow meter are integrated in the lower joint.
- the water outlet of the faucet is in an inverted triangle structure.
- the water outlet of the faucet is in an inverted triangle structure.
- the above scheme integrates flow test module, pressure sensor, power supply, control circuit, mechatronic water nozzle to realize main functions such as packer sealing verification, water nozzle internal and external pressure and flow monitoring, automatic flow measurement and adjustment, and wave code communication;
- the flow meter is integrated into the lower joint body, the number of seals is reduced, and the reliability of the instrument is improved while reducing the risk of clogging;
- the water nozzle outlet is designed with an inverted triangle structure, and a large-sized water outlet is added at the tail to improve the water nozzle adjustment characteristics.
- the rear section can be opened to increase the flow area, keep the injection channel unobstructed, and can well meet the requirements of reinjection of produced water and profile adjustment testing.
- the sealing inspection layer position number is determined according to the sealing inspection instruction; the water nozzle of the water distributor of the sealing inspection layer corresponding to the sealing inspection layer position number is closed; the external pressure and the internal pressure of the oil pipe are collected in real time through the water distributor of the sealing inspection layer; when the changing trends of the external pressure and the internal pressure of the oil pipe are consistent, the packer sealing failure instruction is sent to the ground; when the changing trends of the external pressure and the internal pressure of the oil pipe are inconsistent, the packer sealing effective instruction is sent to the ground; after receiving the deployment instruction, the stratified flow target value is sent to the water distributors of each layer in the well; and the measurement and adjustment of the water distributors of each layer are started at the same time;
- embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
- computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- each process and/or box in the flowchart and/or block diagram, as well as the combination of the process and/or box in the flowchart and/or block diagram can be implemented by computer program instructions.
- These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
- These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
- These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
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Abstract
一种波码分注自动控制方法及系统，方法包括：在接收到验封指令后，根据验封指令确定验封层位号；关闭验封层位号对应的验封层的配水器（300）水嘴；通过验封层的配水器（300）实时采集油管外压和油管内压；在油管外压和油管内压变化趋势一致时，向地面发送封隔器密封失效指令；在油管外压和油管内压变化趋势不一致时，向地面发送封隔器密封有效指令；在接收到调配指令后，向井下各层配水器（300）发送分层流量目标值；开启各层配水器（300）的测调；在预设时间段内各层流量达到分层流量目标值时，结束各层配水器（300）的测调。
Description
本发明涉及通信技术领域，尤其涉及波码分注自动控制方法及系统。
本部分旨在为权利要求书中陈述的本发明实施例提供背景或上下文。此处的描述不因为包括在本部分中就承认是现有技术。
随着油田开发的深入，油田注水效果变差，层间矛盾突出，对于一个含油层系多、层内、层间平面非均质性严重的油田，由于各分层的地质性存在较大的差异，通常水不是按比例进入油层，必须采取分层注水技术。
当前波码分层注水系统采用的地面控制系统与井下智能配水器的通信协议是建立在原有的对地层吸水性认识的注水经验上，单向通信传输时间较长，调配方式需要人工坐在电脑前进行升降压调配各层流量，调配时间较长，且需专业人员操作。
发明内容
本发明实施例提供一种波码分注自动控制方法，用以提高波码分注自动控制效率，该方法包括：
在接收到验封指令后，根据验封指令确定验封层位号；
关闭验封层位号对应的验封层的配水器水嘴；
通过验封层的配水器实时采集油管外压和油管内压；
在油管外压和油管内压变化趋势一致时，向地面发送封隔器密封失效指令；
在油管外压和油管内压变化趋势不一致时，向地面发送封隔器密封有效指令；
在接收到调配指令后，向井下各层配水器发送分层流量目标值；
同时开启各层配水器的测调；
在预设时间段内各层流量达到分层流量目标值时，结束各层配水器的测调。
本发明实施例还提供一种波码分注自动控制系统，用以提高波码分注自动控制效率，该系统包括：控制平台和配水器；
控制平台，用于发送验封指令；
配水器，用于在接收到验封指令后，关闭水嘴；实时采集油管外压和油管内压；在油管外压和油管内压变化趋势一致时，向地面发送封隔器密封失效指令；在油管外压和油管内压变化趋势不一致时，向地面发送封隔器密封有效指令。
本发明实施例中，在接收到验封指令后，根据验封指令确定验封层位号；关闭验封层位号对应的验封层的配水器水嘴；通过验封层的配水器实时采集油管外压和油管内压；在油管外压和油管内压变化趋势一致时，向地面发送封隔器密封失效指令；在油管外压和油管内压变化趋势不一致时，向地面发送封隔器密封有效指令；在接收到调配指令后，向井下各层配水器发送分层流量目标值；同时开启各层配水器的测调；
在预设时间段内各层流量达到分层流量目标值时，结束各层配水器的测调，与现有技术相比，只需在控制平台下发验封指令。系统自动完成井下各层封隔器验封，并将封隔器验封结果反馈到监控平台。通过验封层的配水器实时采集油管外压和油管内压，根据油管外压和油管内压变化趋势是否一致确定验封结果，提高了验封效率，在接收到调配指令后，开启自动测调，提高了波码分注自动控制效率，降低了操作难度和成本。
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1为本发明提供的波码分注自动控制方法的流程示意图；
图2为本发明提供的波码分注自动控制方法的流程示意图；
图3为本发明提供的地面向井下发送的波码指令的示意图；
图4为本发明提供的井下向地面回码的示意图；
图5为本发明提供的波码分注自动控制系统的示意图；
图6为本发明提供的配水器的示意图；
图7为本发明提供的水嘴的结构示意图。
为使本发明实施例的目的、技术方案和优点更加清楚明白，下面结合附图对本发明实施例做进一步详细说明。在此，本发明的示意性实施例及其说明用于解释本发明，但并不作为对本发明的限定。
图1为本发明实施例提供的一种波码分注自动控制方法所对应的流程示意图，如图1所示，该方法包括：
步骤101，在接收到验封指令后，根据验封指令确定验封层位号。
步骤102，关闭验封层位号对应的验封层的配水器水嘴。
步骤103，通过验封层的配水器实时采集油管外压和油管内压。
步骤104，在油管外压和油管内压变化趋势一致时，向地面发送封隔器密封失效指令。
步骤105，在油管外压和油管内压变化趋势不一致时，向地面发送封隔器密封有效指令。
在一种可能的实施方式中，采用五进制编码向地面发送封隔器密封有效指令。
在一种可能的实施方式中，地面控制器控制井筒内的压力变化，验封层配水器检测油管外压和内压是否同步变化。若不同步变化，表示当前层的封隔器密封完好，若同步变化，表示封隔器密封失效。
举例来说，地面控制器控制井筒内的压力变化，验封层配水器检测油管外压和内压是否同步变化。若不同步变化，井下向地面发送指令“1”，若同步变化，井下向地面发送指令“2”。
上述方案，只需在控制平台下发验封指令。系统自动完成井下各层封隔器验封，并将封隔器验封结果反馈到监控平台。通过验封层的配水器实时采集油管外压和油管内压，根据油管外压和油管内压变化趋势是否一致确定验封结果，提高了验封效率，提高了波码分注自动控制效率，降低了操作难度和成本。
本发明实施例在接收到调配指令后，步骤流程如图2所示，具体如下：
步骤201，向井下各层配水器发送分层流量目标值。
在一种可能的实施方式中，地面控制器通过波码指令向井下各层配水器发送分层流量目标值。
需要说明的是，波码指令由唤醒位、数据位、校验位组成；数据位由层位号和控制指令组成。
井下各层配水器存储分层流量目标值，并实时采集当前的流量值。
步骤202，同时开启各层配水器的测调。
井下各层开启自动测调功能。
步骤203，在预设时间段内各层流量达到分层流量目标值时，结束各层配水器的测调。
上述方案，只需在远程控制平台下发调配指令，系统自动完成分层流量自动测调，而传统波码通信调配方法需要专业人员通过不断地降压、升压、开关、调节井下配水器水嘴实现全井分层流量调配，与现有技术相比，提高了调配效率。
在一种可能的实施方式中，地面控制器向井下配水器发送波码指令采用二进制编码规则，如图3所示，数据帧包括唤醒位3T，数据位8T(其中层位号3T，控制指令5T)，数据校验位1T，其中，T为最小码元，代表1个高位或低位的最小时间单位。
一组指令编码由唤醒位、数据位、校验位组成，数据位由层位号和控制指令组成。层位号三位，000～110分别代表1～7层，指令位00000～11111代表32个指令，每个指令代表着不同的控制。数据位结束后由1个T的低电平作为校验结束码，结束本次的信号发送。
上述方案，波码指令由唤醒位、数据位、校验位组成，提高了通信效率。
在一种可能的实施方式中，井下向地面回码采用五进制编码规则，相比原有十进制编码，通信时间大幅缩短，并且井下电机动作的次数和功耗没有增加。
如图4所示，一组信号编码由起始码、数据码、结束码组成，3种编码均为低位码(低位有效)；每种编码之间为间隔码，为高位码(高位有效)。井下返码信号由2S固定时间低电平(S为时间计量单位)作为起始码，紧接着有1～3个数据码D1～D3，用于发送1～3位数字，值逢5进1；3位数据码结束后，由2S时间的低电平作为结束码，结束本次信号发送。
不计起始位和结束位，假设传递数据为2位十进制数“56”，则通信所需消耗的时间为5S，与传统编码每位数字占据10S相比，节省通信消耗时间百分比为75％。水嘴需要动作两次，动作能耗减少一半，水嘴使用寿命延长至两倍。
上述编码方式，提高了通信效率，减少了水嘴的动作能耗，减少起下井更换电池的次数，减轻了工作量，提高了生产效率。
下面举例以对本发明实施例提供的一种波码分注自动控制方法进行说明：
S1：地面控制器向井下配水器发送调配指令。
S2：各层配水器由上到下依次接收流量目标值并存储。
S3：各层井下配水器同时开启自动测调功能。
S4：地面控制器保持恒流模式，配合井下完成测调。
S5：各层配水器由上到下依次测调，每次1分钟。
需要说明的是，测调时长还可以为2分钟、3分钟等，本发明实施例对此不作具体限定。
S6：各层配水器调整到流量目标值后，持续监测5分钟。
S7：判断5分钟内各层配水器的流量是否全部满足流量目标值。
S8：若是，结束测调，否则继续测调。
图5为本发明实施例提供的一种波码分注自动控制系统的示意图，如图5所示，该系统包括：控制平台100和配水器300；
控制平台100，用于发送验封指令；
配水器300，用于在接收到验封指令后，关闭水嘴；实时采集油管外压和油管内压；在油管外压和油管内压变化趋势一致时，向地面发送封隔器密封失效指令；在油管外压和油管内压变化趋势不一致时，向地面发送封隔器密封有效指令。
本发明实施例中，还包括：地面控制器200；
控制平台100，还用于发送调配指令；
地面控制器200，用于在接收到调配指令后，发送分层流量目标值；
配水器300，还用于开启测调；在预设时间段内各层流量达到分层流量目标值时，结束测调。
配水器300具体用于：
采集当前层流量，读取分层流量目标值；
在当前层流量与分层流量目标值的差值大于预设比例时，判断当前层流量是否小于分层流量目标值；
若是，根据当前层流量与分层流量目标值的差值占当前层流量的比例开大水嘴，否则根据当前层流量与分层流量目标值的差值占当前层流量的比例关小水嘴，在电机调节时长大于预设时长时，计算下次自动测调时间并结束测调；
在当前层流量与分层流量目标值的差值不大于预设比例且电机调节时长大于预设时长时，计算下次自动测调时间并结束测调。
地面控制器200具体用于：通过波码指令向井下各层配水器发送分层流量目标值。
如图6所示，配水器包括上接头、外护管、电路板电池、电机电池、主控电路、下接头、中心过流通道、水嘴、压力检测传感器及流量计；上接头的下端外周旋接在外护管的上端口中，下接头的上部外周旋接在外护管的下端口中，中心过流通道的下端口压在下接头的顶部；电路板电池、电机电池、主控电路放置于外护管和中心过流通道的环空内；水嘴通过螺纹连接到下接头上，压力检测传感器、流量计集成于下接头内。
在一种可能的实施方式中，水嘴出水口呈倒三角结构。
如图7所示，水嘴出水口呈倒三角结构。
上述方案，集成流量测试模块、压力传感器、供电、控制电路、机电一体化水嘴实现封隔器验封、水嘴内外压力和流量监测、流量自动测调和波码通信等主要功能；流量计集成于下接头体内，密封数量减少，提高仪器可靠性的同时降低了堵塞风险；水嘴出水口倒三角形结构设计，并在尾部增加大尺寸出水口，提高水嘴调节特性，当注入介质含较大固体颗粒杂质时，可将后段部分打开增大过流面积，保持注入流道通畅，并能够很好地满足回注采出水以及调剖测试的要求。
本发明实施例中，在接收到验封指令后，根据验封指令确定验封层位号；关闭验封层位号对应的验封层的配水器水嘴；通过验封层的配水器实时采集油管外压和油管内压；在油管外压和油管内压变化趋势一致时，向地面发送封隔器密封失效指令；在油管外压和油管内压变化趋势不一致时，向地面发送封隔器密封有效指令；在接收到调配指令后，向井下各层配水器发送分层流量目标值；同时开启各层配水器的测调；
在预设时间段内各层流量达到分层流量目标值时，结束各层配水器的测调，与现有技术相比，只需在控制平台下发验封指令。系统自动完成井下各层封隔器验封，并将封隔器验封结果反馈到监控平台。通过验封层的配水器实时采集油管外压和油管内压，根据油
管外压和油管内压变化趋势是否一致确定验封结果，提高了验封效率，在接收到调配指令后，开启自动测调，提高了波码分注自动控制效率，降低了操作难度和成本。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述的具体实施例，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
Claims (10)
- 一种波码分注自动控制方法，其特征在于，包括：在接收到验封指令后，根据验封指令确定验封层位号；关闭验封层位号对应的验封层的配水器水嘴；通过验封层的配水器实时采集油管外压和油管内压；在油管外压和油管内压变化趋势一致时，向地面发送封隔器密封失效指令；在油管外压和油管内压变化趋势不一致时，向地面发送封隔器密封有效指令；在接收到调配指令后，向井下各层配水器发送分层流量目标值；同时开启各层配水器的测调；在预设时间段内各层流量达到分层流量目标值时，结束各层配水器的测调。
- 如权利要求1所述的波码分注自动控制方法，其特征在于，向井下各层配水器发送分层流量目标值，包括：通过波码指令向井下各层配水器发送分层流量目标值；所述波码指令由唤醒位、数据位、校验位组成；数据位由层位号和控制指令组成。
- 如权利要求1所述的波码分注自动控制方法，其特征在于，向地面发送封隔器密封有效指令，包括：采用五进制编码向地面发送封隔器密封有效指令。
- 一种波码分注自动控制系统，其特征在于，包括：控制平台和配水器；控制平台，用于发送验封指令；配水器，用于在接收到验封指令后，关闭水嘴；实时采集油管外压和油管内压；在油管外压和油管内压变化趋势一致时，向地面发送封隔器密封失效指令；在油管外压和油管内压变化趋势不一致时，向地面发送封隔器密封有效指令。
- 如权利要求4所述的波码分注自动控制系统，其特征在于，还包括：地面控制器；控制平台，还用于发送调配指令；地面控制器，用于在接收到调配指令后，发送分层流量目标值；配水器，还用于开启测调；在预设时间段内各层流量达到分层流量目标值时，结束测调。
- 如权利要求5所述的波码分注自动控制系统，其特征在于，配水器具体用于：采集当前层流量，读取分层流量目标值；在当前层流量与分层流量目标值的差值大于预设比例时，判断当前层流量是否小于分层流量目标值；若是，根据当前层流量与分层流量目标值的差值占当前层流量的比例开大水嘴，否则根据当前层流量与分层流量目标值的差值占当前层流量的比例关小水嘴，在电机调节时长大于预设时长时，计算下次自动测调时间并结束测调；在当前层流量与分层流量目标值的差值不大于预设比例且电机调节时长大于预设时长时，计算下次自动测调时间并结束测调。
- 如权利要求5所述的波码分注自动控制系统，其特征在于，所述地面控制器具体用于：通过波码指令向井下各层配水器发送分层流量目标值；所述波码指令由唤醒位、数据位、校验位组成；数据位由层位号和控制指令组成。
- 如权利要求5所述的波码分注自动控制系统，其特征在于，所述配水器具体用于：采用五进制编码向地面发送封隔器密封有效指令。
- 如权利要求5所述的波码分注自动控制系统，其特征在于，所述配水器包括上接头、外护管、电路板电池、电机电池、主控电路、下接头、中心过流通道、水嘴、压力检测传感器及流量计；上接头的下端外周旋接在外护管的上端口中，下接头的上部外周旋接在外护管的下端口中，中心过流通道的下端口压在下接头的顶部；电路板电池、电机电池、主控电路放置于外护管和中心过流通道的环空内；水嘴通过螺纹连接到下接头上，压力检测传感器、流量计集成于下接头内。
- 如权利要求5所述的波码分注自动控制系统，其特征在于，水嘴出水口呈倒三角结构。
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