Visualization system of oil-water well operating under pressure
A technology for working under pressure and oil-water wells, applied to drilling equipment, using electromagnetic means, instruments, etc., to achieve the effects of improving safety, reducing misoperation, and monitoring tubing displacement in real time
Inactive Publication Date: 2013-07-17
CNPC GREATWALL DRILLING ENG +1
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Problems solved by technology
It overcomes the deficiency that the existing tubing operation is performed by manually visually checking the position of the tubing to estimate the position of the coupling
Method used
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Embodiment Construction
[0013] A visualization system for oil and water well under pressure operation, comprising an upper tubing coupling monitoring device, a lower tubing coupling monitoring device, a tubing displacement monitoring device and a visualization system; figure 1 It is the position relationship diagram of the present invention in the snubbing operation device, the snubbing operation device includes the floating slip 1, the oil pipe coupling monitoring device and the oil pipe displacement monitoring device 2, the single ram blowout preventer 3, and the balance pressure relief valve 4. Lower annular BOP 5, three-ram BOP 6, lower oil pipe coupling monitoring device 7, hydraulic cylinder 8, balance pressure valve 9, fixed slips 10 and upper annular BOP 11, upper oil pipe connection The collar monitoring device and the oil pipe displacement monitoring device are installed and fixed above the upper annular blowout preventer 11, and the lower oil pipe collar monitoring device is installed and f...
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The invention relates to an oil field device operating under pressure, particularly relates to a visualization system of an oil-water well operating under the pressure. The visualization system comprises an upper tubing coupling monitoring device, a lower tubing coupling monitoring device, a tubing displacement monitoring device and a visualization system, wherein the upper tubing coupling monitoring device and the tubing displacement monitoring device are fixedly arranged above an upper annular blowout preventer, and the lower tubing coupling monitoring device is fixedly arranged in a short section of a lower beam; and a controller is respectively connected with an approach switch and a coded disc, an original end coil is connected with a power amplification circuit board, a secondary end coil is mutually connected with a signal processing circuit board, and the controller is connected with a touch display screen by a communicating line. By using the visualization system provided by the invention, the real-time monitoring on the displacement state of a tubing coupling is realized, thereby providing a reference for operations under pressure; and a defect that in the existing tubing rountrip operation, the positions of couplings is estimated through artificially eyeballing the position of tubing is overcome.
Description
Technical field: [0001] The invention relates to equipment for oil field snubbing operation, in particular to a visualization system for snubbing operation of oil and water wells. Background technique: [0002] Snubbing operation is to use special workover equipment to realize safe and pollution-free lifting operation of the pipe string when the wellhead is under pressure. When the tubing collar is close to the position of the wellhead blowout preventer, it is necessary to quickly open the wellhead blowout preventer so that the tubing collar can pass through smoothly. At present, the operation of lifting and lowering the tubing is performed manually by visually checking the position of the tubing and estimating the position of the coupling based on experience. This method of operation can easily cause blowout preventers and slips to be damaged by tubing couplings due to untimely opening, causing blowouts and other accidents. Damaged by frequent scraping. Therefore, it is ...
Claims
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IPC IPC(8): G01B7/02G01B7/00E21B19/00
Inventor 蔡长宇崔佳张宝民祝金利侯存亿谢冰王维明韩秋寅刘永旭胡刚韩政博徐长军
Owner CNPC GREATWALL DRILLING ENG