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AssigneeInstitutul de Cercetari si Proiectari Pentru Petrol si Gaze
InventorsIulius M. Cucuiat, Vasile V. Popp
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Hydrogen sulfide is removed from a three-phase mixture of crude oil, natural gas, and water as it issues as a stream from an oil well by first adding liquid sulfur dioxide to the stream without substantially changing its temperature or pressure and then turbulencing the stream to react most of the hydrogen sulfide therein with the sulfur dioxide. Water containing an additive capable of forming a salt with the remaining trace hydrogen sulfide is then added to the stream and then the desulfurized natural gas is separated out of the stream. Hot and sulfur-free crude oil is then injected into the stream to melt the sulfur therein and the stream is then gravitationally separated into sulfur, water, and pure sulfur-free crude oil, some of the last of which is heated and reintroduced into the stream upstream to heat same and melt the sulfur therein.
A method of removing hydrogen sulfide from a three-phase mixture of crude oil, natural gas, and water as said mixture issues as a stream from an oil well, said method comprising the steps of:
Dependencies are inferred from the claim text.