METHOD FOR DETERMINING SPECIFIC AND TOTAL QUANTITY OF LIQUID WATER PHASE SUPPLIED FROM WELL TO FIELD GAS-COLLECTING HEADER Russian patent published in 2012 - IPC E21B47/11 

FIELD: oil and gas industry.

SUBSTANCE: method is based on pumping to initial section of gas-collecting header of water-soluble reagent indicating the specified concentration. Samples of liquid water phase mixed with indicator are taken at the end of header. Concentration of indicator in it is determined and specific flow rates of liquid water phase supplied to gas-collecting header from formation to the well are calculated. Together with sampling of liquid water phase mixed with indicator at the end of header there taken are samples of gaseous phases in steady-state mode, and content of indicator is determined in them. Solubility of indicator in gas, in liquid water phase and in hydrocarbon condensate is considered, and calculation of specific flow rate of liquid water phase supplied to header and from formation to the well is carried out as per mathematical expressions.

EFFECT: improving reliability and accuracy of determination of specific quantity of liquid water phase.

3 cl, 1 dwg, 1 ex