PROCESS MEASURING PRODUCTION RATE OF OIL WELLS IN SYSTEMS OF SEALED GATHERING AND GEAR FOR ITS IMPLEMENTATION Russian patent published in 2003 - IPC

Abstract RU 2220282 C1

FIELD: oil production, operative control over discharge of oil and gas condensate wells in systems of sealed gathering. SUBSTANCE: process includes filling of measuring vessel of calibrated volume of with well product while gas line is open to collector and fluid discharge line is closed, determination of hydrostatic pressure when height of fluid column, excessive pressure, temperature, rate of fluid driven by gas from vessel are known after shut-off of gas and opening of fluid discharge line to collector and estimation of productivity by fluid, oil, water and gas on basis of obtained data and known densities of oil and stratal water contained in well production. Time to fill measuring vessel with well product is specified beforehand with due account of maximal productivity of gear. On expiration of specified time supply of well product into measurement vessel is stopped, well product contained in measuring vessel is held till state of total absence of bubble gas and foam settling, then height of fluid column and hydrostatic pressure are measured and later supply of well product into measuring vessel is recommenced with simultaneous shut-off of gas line and opening of fluid discharge line to collector. Gear is equipped with volume gas separator, calibrated measuring vessel strapped by pipe-line fittings, the latter being fitted with gauges of its filling, hydrostatic and excessive pressures, thermometer and timer and flow switch connecting gas lines of separator and measuring vessel, collector and fluid discharge line of measuring vessel. Pipe-line fittings display capability to switch flow from inlet of well to collector and from well to separator with the help of flow switch and filling gauge of measuring vessel is analogous one ( radar or rheostat type, for instance ) and shows capability to check any level of fluid. EFFECT: raised measurement stability and accuracy. 2 cl, 1 dwg

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RU 2 220 282 C1

Authors

Miljutin L.S.

Grishin P.A.

Panasjuchenko M.M.

Savinykh V.M.

Kotlov V.V.

Dates

2003-12-27Published

2002-06-20Filed