Patent ID: 7984766

Claim:
A fluid production system, comprising: a production vessel in fluid communication with oil and gas; an electrical submersible pump (ESP) assembly installed in the production vessel for pumping oil out of the production vessel; the ESP assembly comprising: a motor, a seal section and a pump having a fluid intake; a gas extraction device adjacent the ESP assembly and having a body with an axis and an orifice for receiving fluids from the ESP assembly, and a radial port formed in the body; a sleeve coaxially mounted within the body for selective axial movement within the body, the sleeve having an axial aperture extending therethrough, and a radial aperture in communication with the axial aperture, the sleeve having a lower position wherein fluids flow through the axial aperture and the sleeve seals against the radial port in the body, and an upper position wherein the fluids flow through the axial aperture, and the radial aperture in the sleeve at least partially aligns with the radial port in the body to draw gas into the fluids flowing through the axial aperture; wherein the axial aperture comprises a venturi having a throat located between opposed divergent channels, and the radial aperture in the sleeve intersects the throat.