Well shutdown system by one key

An electromagnetic proportional valve and displacement sensor technology, which is applied in the automatic control system of drilling, drilling equipment, earthwork drilling and production, etc., can solve the problem of inconvenient operation that cannot directly display the pressure of the hydraulic valve, the flow rate of the liquid pipe at the turning angle, and the operation error. and other problems, achieving the effect of convenient well shut-in scheduling and detection

Inactive Publication Date: 2013-06-05
GUANGZHOU DONGSU PETROLEUM D&E EQUIP
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Problems solved by technology

However, this utility model still cannot visually display the pressure of each hydraulic valve, the opening angle and the flow rate of the liquid pipe on t

Method used

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  • Well shutdown system by one key

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Embodiment Construction

[0014] Such as figure 1 As mentioned above, the present invention provides a one-key shut-in system, including a pressure transmitter installed on casing, riser and electromagnetic proportional valve, and a displacement sensor on the electromagnetic proportional valve, pressure transmitter and displacement sensor Connect the PAC controller, the PAC controller is equipped with an ADC module, the ADC module converts the analog signal into a digital signal, and transmits it to the control center through WLAN and RS422. The control center includes a tablet computer on the wired driller’s floor and a tablet computer on the wireless remote control station , the control center is connected to the electromagnetic proportional valve through the ADC module. The outlet of the electromagnetic proportional valve is also equipped with a flow detector, which can monitor the flow rate of the oil in real time. The displacement sensor and flow detector feed back the opening angle of the electr...

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Abstract

The invention relates to a well shutdown by one key. The well shutdown by the one key comprises pressure transmitters which are arranged on a sleeve, a vertical pipe and an electromagnetism proportional valve and a displacement sensor on the electromagnetism proportional valve. The pressure transmitters and the displacement sensor are connected with a programmable automation controller (PAC), an ADC module is arranged in the PAC, and the ADC module converts analog signals into digital signals to transmit to a control center through a wireless local area network (WLAN) and RS422, and a tablet computer is connected with a three-position four-way proportional valve through the ADC module. Due to the fact that the pressure transmitters are arranged on the sleeve, the vertical pipe and the proportional valve, and the displacement sensor is arranged on a long-distance oil controlled valve, coherent signals are converted in to the digital signals through the ADC module and transmitted to the tablet computer of the control center through the WLAN and the RS422. The tablet computer can intuitively display pressure values and open values of the sleeve, the vertical pipe and the electromagnetism proportional valve in real time, and the well shutdown is convenient to dispatch and test in the control center.

Description

technical field [0001] The invention relates to the field of oil drilling, more specifically, a control system capable of using wired or wireless remote and intuitive management of oil wells. Background technique [0002] In the process of oil and gas exploration and development, when overflow, well kick or blowout occurs at the wellhead, it is necessary to close the wellhead of the oil and gas well through remote control to avoid blowout accidents. [0003] Now some simple control devices have appeared. Operating the relevant three-position four-way rotary valve in the control room can indirectly control the remote hydraulic valve. However, the three-position four-way rotary valve is not very intuitive on the operation panel. After completion, it is also difficult to visually display the status, let alone the pressure of the hydraulic valve, the opening angle and the flow rate of the liquid pipe. It is very inconvenient to make the well shut-in operation, and it is also pr...

Claims

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Application Information

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IPC IPC(8): E21B44/00
Inventor 何子卫刘梦祥张跃锋肖磊曾庆宗池德辉
Owner GUANGZHOU DONGSU PETROLEUM D&E EQUIP
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