METHOD OF ESTIMATING THE FLOW OF METHANE INTO THE ATMOSPHERE, WHICH IS CARRIED BY FLOATING BUBBLES EMERGING FROM THE UPPER LAYER OF SEDIMENTARY ROCKS AT THE BOTTOM OF THE WATER RESERVOIR, AND A DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2019 - IPC G01F1/00 B01L5/00 

FIELD: chemistry.

SUBSTANCE: invention relates to means of estimating flow of methane into atmosphere, which is carried by floating bubbles emerging from upper layer of sedimentary rocks at the bottom of water reservoir. Essence: sample of sedimentary rock is taken and placed on bottom of closed vertical reservoir. Reservoir is filled over the sample of the sedimentary rock with water from the analysed water body to the height of not less than ten meters. Preset flow of methane from nozzle inserted through bottom into reservoir is passed through sample of sedimentary rock. Water bubbles coming out of water are separated from water and drops splashes. Flow of gas leaving water is collected and measured. Images of the emerging bubbles near the water surface are recorded. Recording of images of emerging bubbles near water surface is synchronized with measurements of gas flow and composition. Device for method implementation contains gas cylinder (1) with methane equipped with regulator (2) connected to controller (3) of methane flow. Controller (3) of methane flow through valve (4) is connected to nozzle (5) passing through the bottom inside closed vertical tank (6). Vertical tank (6) is made with height of more than ten meters. Lower part of reservoir (6) is intended for arrangement of sample (7) of sedimentary rock, on top of which water (8) is filled. Inside the upper part of tank (6) there is a conical funnel shaped as inverted funnel (9), the tube of which is brought out from above. Outside tank (6) there is a gas flow meter (11) and a digital video camera (13), to accommodate the lens in the side wall of tank (6) below funnel (9) there is a window. Funnel tube (9) through separator (10) is connected to gas flow meter (11), which is connected to chromatograph (12), wherein control and registration unit (14) is connected to methane flow controller (3), to meter (11) flow of gas, to chromatograph (12) and to digital video camera (13).

EFFECT: high accuracy of estimating the flow of methane into the atmosphere, which is carried by bubbles emerging in the water and emerging from the upper layer of sedimentary rocks.

2 cl, 3 dwg