Importance

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Abstract

Apparatus for running tools suspended from a wireline into a wellbore under pressure, while simultaneously cleaning and treating the wireline with treatment fluid to inhibit the wireline against corrosion. A lubricator barrel and a cylinder is connected to the upper end of a wellbore and a wireline extends through the axial centerline of the barrel. Several packet devices are arranged for squeezing and surrounding a length of the wireline to strip liquid and debris from the outer surface thereof. Spacers keep the packer devices arranged in axially spaced relationship within the cylinder and form a treatment chamber between adjacent packers and a cleaning chamber between other adjacent packers. A pressure differential is applied across a ram device which reciprocates within the cylinder and this compresses each packer device simultaneously. A pump is connected to actuate the ram device and set the packet devices. The treatment chamber receives treatment chemical that is pumped thereinto for inhibiting the wireline. Residual treatment chemical is discharged from the cleaning chamber.

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First Claim