Oil-gas mixed flow technique for processing large segment plug flow in primary oil collecting and delivering process
A technology for oil and gas mixed transportation and slug flow, which is applied in separation methods, chemical instruments and methods, and liquid degassing, etc., can solve the problems of waste of associated gas resources, potential safety hazards, and increased gathering and transportation costs. The effect of venting loss, avoiding pump failure, and prolonging time
Inactive Publication Date: 2011-11-09
XIAN CHANGQING TECH ENG
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Problems solved by technology
As a result, associated gas resources are wasted and wasted, the environment is polluted, potential safety hazards are likely to occur, and the cost of gathering and transportation increases
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[0013] like figure 1 As shown, the oil-gas separation chamber 3 of the separation buffer device 2 communicates with the input oil-gas 1 through the pipeline, and the input oil-gas 1 enters the oil-gas separation chamber 3 of the separation buffer device 2 through the pipeline, and part of the separated associated gas is accompanied by the oil-gas separation chamber 3. The gas output pipeline is transported to the input end of the process self-use fuel gas 4 as the process self-use fuel gas 4 . The oil separated by the oil-gas separation chamber 3 enters the liquid collection chamber 5 through the channel communicating with the separation buffer device 2 . There is an overflow outlet pipe 6 inside the separation buffer device 2, and the overflow outlet pipe 6 is connected to the input end of the oil and gas conveying screw pump 7, and the oil and gas conveying screw pump 7 is connected to the pipeline liquid separator 8, and the pipeline liquid separator 8 has external oil and ...
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The invention relates to a crude oil transportation technics method, in particular to an oil-gas mixture transportation technics method for processing the slug flow at big segment during transporting crude oil, which is characterized in that: an input oil-gas (1) enters into an oil-gas separating cavity (3) of a separating cushioning device (2); part of associated gas separated can serve as the technics self-using fuel (4); the oil-gas can assemble at a liquid collecting cavity (5) of the separating cushioning device (2) and can flow out from an overflow outlet pipe (6) when the liquid level raising to certain height and then can enter into an oil-gas transportation screw pump (7) for adding pressure; then the liquid oil can pass through a pipeline separator (8) to complete the transportation of the external transported oil-gas. Under the condition that flow is plugged at large segment, the invention ensures the normal and effective operation of the oil-gas multiphase flow screw pump,thereby radically preventing the phenomena as unable to pumping, vibration and heating, etc. Without needing to independently lay the gas pipe-lines, the invention saves the project investment, prevents the associated gas from losing and polluting environment and eliminates the safety hidden trouble.
Description
technical field [0001] The invention relates to a crude oil gathering and transportation process, in particular to an oil and gas mixed transportation process for treating large slug flow in the crude oil gathering and transportation process. Background technique [0002] During the gathering and transportation of crude oil in the oil field, large irregular slug flow often occurs at the front end of the gathering pipeline. At this time, when the oil transfer pump continues to operate and transport, the oil transfer pump will not load, vibrate and generate heat, which will seriously affect the safe, normal and stable operation of the crude oil gathering and transportation system. [0003] For this reason, the existing technology adopts the intermediate transfer station in the crude oil gathering and transportation process to separate the associated oil gas in the slug flow generated during the crude oil transportation process and vent it, or lay separate pipelines for transpo...
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IPC IPC(8): F17D1/00F17D3/01F17D3/05B01D19/00
Inventor 冯凯生呼延念超何宗平白俊生徐伟王铁张箭啸王曰燕
Owner XIAN CHANGQING TECH ENG