Wellhead foam detection device and method

Abstract

The invention discloses a wellhead foam detection device and method. The wellhead foam detection device comprises a glass tube, a pipeline locking ring, an annular guide rail, a sliding module, a camera module and a light source module, the glass tube is welded to a field pipeline, the pipeline locking ring is fixed to the pipeline, the guide rails are fixedly connected with the pipeline locking ring, the two sliding modules are symmetrically installed on the two guide rails in a mirror image mode respectively, the camera module and the light source module are installed on the two sliding modules respectively, and the relative positions of the camera module and the light source module are fixed. The motor drives the sliding module to rotate around the guide rail, the camera module shoots an image, the image is displayed through the displayer, and the foam content is calculated through the image processor. The device has the advantages that the state of foam in the pipeline can be directly obtained, the content of the foam in the pipeline can be displayed in real time, the defoaming agent with the corresponding displacement and proportion is guided to be put according to the content of the foam, the cost is reduced, and the economic benefit is improved.

Description

technical field [0001] The invention relates to the technical field of gas production wellhead foam detection, in particular to a wellhead foam detection device and method in a machine vision-based foam drainage gas recovery process. Background technique [0002] The basic principle of foam drainage gas recovery is to inject a certain surfactant (foaming agent) capable of foaming with water from the wellhead to the bottom of the well. Density aqueous foam. With the formation of the bubble interface, the liquid is continuously lifted, and the liquid at the bottom of the foam column is continuously replenished until the bottom water is completely replaced. The foaming agent, through the functions of dispersing, reducing drag and washing, makes the wellbore accumulation fluid form foam, and makes insoluble dirt such as sediment and silt wrapped in the foam and discharged with the air flow, which plays a role in dredging the air-water channel, increasing production, The effect...

AI Technical Summary

Problems solved by technology

Since the foam from the wellhead exists in the pipeline, it is impossible to directly observe the foam in the pipeline. The foam sampled from the separator is accumulated after a period of time, and does not reflect the real-time foam situation in the pipeline. According to sampling from the separator It is not accurate to change the ratio or displacement of the defoamer due to the results, and the existing filling system consumes a lot of raw materials for the defoamer, and the economic benefits cannot be improved for a long time

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