Measuring and testing – Volume or rate of flow – Combined
Patent
1984-01-23
1985-10-29
Therkorn, Ernest G.
Measuring and testing
Volume or rate of flow
Combined
73223, 55 21, 55160, 55177, 55215, 55270, G01F 1508
Patent
active
045494320
ABSTRACT:
The separator accepts both the casing annulus and tubing production streams issuing from an in situ combustion project production well. Most of the gas in the flow is first separated from the liquid and solids, by centrifugal action. This gas is removed from the separator. The remaining mixture is accumulated until a pre-determined weight is in hand, at which point the accumulated batch is dumped. The time taken to accumulate the batch is noted. Computational elements then determine the mass flow rate of the dumped mixture.
The separator comprises an upright cylindrical vessel having tangential inlet means at its upper end and a dump outlet at its base. The gas-liquid-solids production mixture enters the vessel chamber through the inlet means and is spun, to form a central gas vortex and an outer, downwardly descending liquid-solids mixture. The separated gas leaves the chamber through an outlet line at the upper end of the vessel. The liquid-solids mixture accumulates as a batch in a collection zone in the lower end of the vessel chamber. Elements are provided for maintaining a generally constant backpressure in the vessel, to provide the drive needed for discharging the batch of liquid-solids mixture therefrom. A pair of pressure sensors are positioned in the chamber, one at the base of the chamber and the other part way up its length. These pressure sensors are connected with a unit adapted to measure the pressure differential and emit a signal indicative thereof. When the pressure differential signals reach a pre-determined value, a dump valve in the outlet line is opened by elements responsive to the signals. When the pressure differential signals reach a pre-determined minimum value, the dump valve is closed. A computer is utilized to calculate the liquid mass flow rate from the weight and time measurements.
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Anderson Clifford J.
Bland Linden
Johnson Ernest Peter
Murphy Oil Company Limited
Therkorn Ernest G.
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