At production, collection and transport of low – pressure gas to deep water offshore platforms in sea conditions because of thermodynamic indices change in the system, complications are generated in connection with liquid phases – separation. These complications disturb normal operational well behavior, gas preparation unit and trunk (main) pipeline conditions. As a result of these phenomena high – volume losses of gas, gas condensate and chemical reagent take place. In the process of testing, the following process parameters were determined: pressure, gas temperature, facility performance, regeneration temperature, amount of absorbent injected into the gas flow, concentration of regenerated and saturated absorbent, dry gas dew point and so on. In the process of investigating the effect of the amount of inhibitor on the degree of corrosion prevention, hydrate formation and salt deposit at the facilities, regression equations. That is why, to guarantee uninterrupted transportation of low-pressure gas in field conditions, new methods are required for these phenomena prevention. On the basis of field study results some variants of calculation were given to increase efficiency of low-pressure gas transportation system in offshore oil and gas field’s conditions. Results of high-pressure gas optimal working pressure calculation for precipitated liquid phase displacement at low-pressure petroleum gas transportation to deepwater offshore platforms are shown in the article. As well, method for precipitated liquid phase displacement from low-pressure gas pipeline with usage of high-viscosity elastic gelling compositions on the basis of domestic petrochemical products

Highlight important aspects of microbiological protection of underground facilities. It is shown that an important environmental and technological problem is the protection of underground oil and gas pipelines from microbial corrosion by soil corrosion-hazardous microorganisms, including the crucial role played by sulfatvosstanovitelnye (SRB) and thione (TB) bacteria. The influence of the nature of the inhibitor and the hydrophobicity of the electrolyte composition of basic and modified mastics. The influence of heterotrophic bacteria isolated from the damaged asphalt blocks pipeline, the stability of modified bitumen-polymer sealant. The effect of nitrogen-containing corrosion inhibitors on the growth and enzyme activity of the bacteria and the sulfur cycle, the mechanism locks thiobacteria and gidrogenaznoi reaction korozionnoaktivnih SRB. The efficiency of the derivatives dioksodekagidroakridina the rate of microbial corrosion of steel under the ISF and thiobacteria. A comparative evaluation of the effectiveness of these inhibitors in industrial inhibitor. These inhibitors provide a high degree of protection from corrosion in the presence of SRB (90%), which indicates their antibacterial properties and offers the prospect of their use in industrial applications of anaerobic corrosion caused by SRB. Keywords: temperature measurements; measurement error; thermal energy; thermodynamics; metrology.

No abstract

No abstract

No abstract