Anti-blocking device and logging external gas circuit building structure

Abstract

The invention relates to the field of logging gas-liquid path drying and anti-blocking equipment, in particular to an anti-blocking device and a logging external gas path building structure. The anti-blocking device comprises an anti-blocking device pipe body and end covers blocking the two ends of the anti-blocking device pipe body, a condensation ball is contained in the anti-blocking device pipe body, an upper through opening and a lower through opening which are communicated with the outside are formed in the two end covers respectively, and an elastic supporting piece is arranged between the condensation ball and the lower through opening. A space for gas-liquid circulation is reserved among the elastic supporting piece, the lower through opening and the anti-blocking device pipe body; and the logging external gas path building structure comprises the anti-blocking device, a dryer and an external condensation ball, and the external condensation ball is connected between the anti-blocking device and the dryer. The anti-blocking device has the beneficial effects that the defect that the condensation ball easily causes blockage when moving up and down is eliminated, the connecting distance between the anti-blocking device and the dryer is shortened, and low-temperature freezing blocking is prevented.

Description

technical field [0001] The invention relates to the field of mud logging gas-liquid path drying and anti-blocking equipment, in particular to an anti-blocking device and an external gas path construction structure for mud logging. Background technique [0002] In the field of oil and gas exploration, the discovery of oil and gas shows depends on the analysis of cuttings fluorescence and the analysis of the gas in the formation contained in the drilling fluid. During actual drilling, the gas released after the drilling fluid is stirred by the electric continuous degasser, float degasser, quantitative degasser or other types of degassers through comprehensive mud logging needs to pass through the anti-blocking device (gas-liquid degasser). Separator) and calcium chloride dryer are two kinds of gas-liquid separation and drying devices. The anti-blocking device and the dryer are connected through a rubber hose. During use, the gas-liquid inlet of the anti-blocking device is eas...

AI Technical Summary

Problems solved by technology

[0004] ① The structural design of the anti-blocking device is easily restricted by the upstream and downstream movement defects of the condensation ball, resulting in small adsorption space and easy blockage;

[0005] ② The anti-drilling fluid clogging design of the gas outlet of the anti-blocking device is limited by the defect of the mechanical action principle, which causes the drilling fluid to absorb and stick and block;

[0006] ③ The influence of the gravity of the suspended condensation ball itself causes the adsorption resistance of the gas path and causes the adsorption air flow to be unstable;

[0008] ⑤ The moisture in the cavity of the rubber hose itself increases the adsorption resistance of the air path, and the water is easy to freeze at the freezing point, causing the blockage of the air path;

[0009] ⑥ The anti-blocking mechanism of the condensation ball in the anti-blocking device is unscientific, resulting in blockage of the gas path;

[0010] ⑦ The gas entering the dryer contains a lot of water, which leads to the accelerated desiccant failure rate of the dryer, agglomeration and blockage of the gas path again;

[0011] ⑧ Without heating measures, gas Louis freezes and blocks in winter

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