Wells – Processes – Producing the well
Patent
1987-01-05
1988-10-18
Suchfield, George A.
Wells
Processes
Producing the well
166 50, 166902, E21B 4102, E21B 4312
Patent
active
047780070
ABSTRACT:
A sour natural gas is produced via a well system comprising a vertical well section and a horizontal drainhole section extending through the reservoir formation. Formation plugging due to in-situ precipitation of sulphur during production operations is avoided by adequately sizing the horizontal drainhole section in the reservoir, thereby establishing near-wellbore pressures in the reservoir above the sulphur saturation pressure, without sacrificing production rates.
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Shell Oil Company
Suchfield George A.
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