METHOD OF OIL ANALYSIS FOR GAS-CONDENSATE RATIO Russian patent published in 2009 - IPC E21B47/10 

Abstract RU 2348805 C1

FIELD: oil and gas industry.

SUBSTANCE: invention refers to oil recovery and can be used to estimate gas amount recovered together with oil, as well as for operative control and regulation of oil and gas stock production process. Degassed oil density under standard conditions, gas solubility coefficient and stream temperature are measured on producing well head. Besides oil level is measured in annular space with annular pressure and gas solubility correction factor at average oil temperature in annular space. Gas factor is evaluated from condition of equality between gas volume separated from oil and free gas volume in annular space reduced to standard conditions. Herewith gas factor is independent on well stream watering and is not sensitive to oil foaminess.

EFFECT: higher accuracy of method with considerable reduction of well shutdown rates.

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RU 2 348 805 C1

Authors

Voevodkin Vadim Leonidovich

Chernykh Irina Aleksandrovna

Kalinin Ivan Mikhajlovich

Lozhkin Mikhail Georgievich

Jaryshev Gennadij Mikhajlovich

Jaryshev Jurij Gennad'Evich

Dates

2009-03-10Published

2007-06-25Filed