Patent ID: 8863830

Claim:
A pressure control assembly for a wireline cable disposed in a wellbore, comprising: a housing frame having an inner bore formed therethrough; a first line wiper concentrically located within the housing, wherein the first line wiper comprises a first solid elongated body, wherein an exterior of the first solid elongated body seals with the inner bore, wherein a first longitudinal aperture is formed through the solid elongated body, and wherein first chevron profile flow paths open from the first longitudinal aperture and terminate within the elongated body; a second line wiper concentrically located within the housing, wherein the second line wiper comprises a first solid elongated body, wherein an exterior of the second solid elongated body seals with the inner bore, wherein a second longitudinal aperture is formed through the solid elongated body, and wherein second chevron profile flow paths open from the second longitudinal aperture and terminate within the elongated body; a chamber formed in the housing between the line wipers, wherein the chamber is isolated at one end by the first line wiper and at the other end by the second line wiper; and an injection system in fluid communication with the cable for circulating lubricant into the housing frame and out of the housing frame, wherein the lubricant lubricates and maintains a predetermined pressure within the housing frame.