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Cabled digital separate layer water injection ground control apparatus
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Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A ground control, digital technology, applied in the direction of program control, computer control, general control system, etc., can solve the problems of low operation efficiency and large workload, achieve convenient operation, simple performance, improve test deployment efficiency and success rate. Effect
Inactive Publication Date: 2015-12-09
PETROCHINA CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the problems that the existing layered water injection equipment requires a large workload, requires tools to go into the well for operation, and has low operating efficiency
Method used
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Embodiment 1
[0018] In order to solve the problems that the existing layered water injection equipment has a large workload, requires tools to go down the well to operate, and has low operating efficiency, the present invention provides a cabled digital separate injection surface control equipment, including a power supply 1 and power supply 1 respectively Electrically connected underground intelligent water distributor 7, codec 3, main controller 2, and memory 6; the underground intelligent water distributor 7 is connected to codec 3 through cables, and codec 3, main controller 2, memory 6 Electrically connected in turn; the downhole intelligent water distributor 7 obtains downhole pressure, temperature and flow data, and transmits the obtained data to the codec 3 through the cable, and the codec 3 sends the coded pressure, temperature and flow data to The main controller 2, the main controller 2 processes the coded pressure, temperature and flow data and transmits them to the memory 6, an...
Embodiment 2
[0024] On the basis of Embodiment 1, the cabled digital distribution ground control equipment also includes a host computer 9 electrically connected to the memory 6 and the main controller 2 respectively, and the comparison result is fed back to the host computer 9 through the memory 6, and the host computer 9 The command signal is sent to the master controller 2, and the master controller 2 encodes and decodes the command signal through the codec 3, and then transmits the command signal to the downhole intelligent water distributor 7 through a cable to realize flow regulation.
[0025] It should be noted that the upper computer 9 can be a computer, and the upper computer 9 is directly connected with the wired digital distribution ground control equipment, and reads and records the data such as pressure, temperature and flow in the process of measurement and adjustment, and when necessary It can be quickly printed at any time for archiving. The upper computer 9 directly reads a...
Embodiment 3
[0031] On the basis of Embodiment 1, the wired digital dispensing ground control equipment also includes a touch-screen display 4 electrically connected to the power supply 1, the memory 6, and the main controller 2, and the comparison result is fed back to the touch-screen display 4 through the memory 6. The display 4 and the touch screen display 4 send command signals to the main controller 2, and the main controller 2 encodes and decodes the command signals through the codec 3, and transmits them to the downhole intelligent water distributor 7 through cables to realize flow regulation.
[0032] The touch-screen display 4 can visually display the recorded flow, pressure, and temperature values, and can manually issue nozzle adjustment commands to control the flow of the water distributor, and at the same time perform operations such as packer seal inspection.
[0033] The operating principle of the wired digital distribution ground control equipment provided by the present in...
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Abstract
The invention provides a cabled digital separate layer water injection ground control apparatus. The cabled digital separate layer water injection ground control apparatus includes a power supply device as well as a codec, a main controller, a memory and a downhole intelligent water distribution device which are electrically connected with the power supply device respectively; the downhole intelligent water distribution device is used for acquiring flow rate data and transmitting the data to the codec; the codec is used for converting the flow rate data to analog signals and transmitting the analog signals to the main controller; and the main controller transmits the flow rate data to the memory and compares the flow rate data with injection allocation amount stored by the memory, and transmits an instruction to the downhole intelligent water distribution device when the flow rate data do not accord with the injection allocation amount, so that flow rate adjustment can be realized. With the cabled digital separate layer water injection ground control apparatus provided by the invention adopted, ground real-time control and monitoring can be realized; control can be carried out remotely; workload can be reduced effectively; a testing and distributing instrument is not needed to be arranged in a hole to perform downhole operation; all water injection layer section testing and distributing tasks can be completed through ground operation control; and testing and distributing efficiency and success rate can be greatly improved; and downhole operation risks can be decreased. The cabled digital separate layer water injection ground control apparatus has the advantages of convenient operation and simple performance.
Description
technical field [0001] The invention belongs to the technical field of oilfield water injection, and in particular relates to a ground control device for cabled digital injection. Background technique [0002] Water injection is an effective method to maintain reservoir pressure, achieve high and stable oilfield production and improve oilfield development effects. In order to meet the technical needs of different development stages of the oilfield and achieve high-efficiency water injection, the layered water injection process has been continuously improved. The existing layered water injection technology mainly includes bridge-type eccentric injection technology and bridge-type concentric injection technology. The bridge-type eccentric injection technology can adjust the water nozzle by throwing any plug through the steel wire, and can also use the continuous measurement and adjustment of the cable , the water flows into the annular space of the oil casing through the plug...
Claims
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Application Information
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