An intervention method for acting on a wall of a fluid pipeline using a tool includes moving the tool inside the pipeline until a pipe segment of the tool is positioned facing a zone of the wall of the pipeline. The method also includes creating sealing upstream and downstream from the zone using first and second seals of the tool so as to seal off an outer portion of a segment of the pipeline around the zone. The method further includes acting on the zone of the wall. The sealing by the first and second seals occurs in two portions of the pipeline so as to define a sealing lock between the two portions of the pipeline. The first seal is in two portions, and the second seal is in two portions.

An intervention method for acting on a wall of a fluid pipeline using a tool includes moving the tool inside the pipeline until a pipe segment of the tool is positioned facing a zone of the wall of the pipeline. The method also includes creating sealing upstream and downstream from the zone using first and second seals of the tool so as to seal off an outer portion of a segment of the pipeline around the zone. The method further includes acting on the zone of the wall. The sealing by the first and second seals occurs in two portions of the pipeline so as to define a sealing lock between the two portions of the pipeline. The tool further includes an adjustable propulsion system configured to make use of movement of the fluid in order to move the tool.

The invention relates to an intervention method for acting on the wall of a fluid pipeline by using a tool comprising a pipe segment and at least first means for creating sealing and second means for creating sealing, the method comprising a step of moving the tool inside the pipeline until the pipe segment is positioned facing a zone of the wall of said pipeline, the method further comprising a step of creating sealing upstream and downstream from said zone respectively by using the first and second means for creating sealing so as to seal off an outer portion of a segment of the pipeline around said zone, followed by a step of acting on said zone of the wall.

An apparatus for sealing a leak from a tubular member has a channel member with at least one open end, a sealing member positioned in an interior of the channel member and having a channel extending therethrough, and a compression assembly having a portion extending through the channel of the sealing member. The compression assembly also has a rotatable element extending outwardly of the channel of the sealing member. The rotatable element is rotatable so as to compress or deform the sealing material within the interior of the channel member so as to seal the leak. A tape material is wrapped over the channel member so as to fix a position of the channel member over the leak.

An apparatus for sealing a leak from a tubular member has a channel member with at least one open end, a sealing member positioned in an interior of the channel member and having a channel extending therethrough, and a compression assembly having a portion extending through the channel of the sealing member. The compression assembly also has a rotatable element extending outwardly of the channel of the sealing member. The rotatable element is rotatable so as to compress or deform the sealing material within the interior of the channel member so as to seal the leak. A tape material is wrapped over the channel member so as to fix a position of the channel member over the leak.

The invention relates to a plug (10) of the type used in threaded openings (AB) of oil pans (CT) of various vehicles. The plug (10) is made in a single piece (20), preferably of iron or other suitable material, the plug (10) having a six-sided head (21). An NPT threaded portion (23) in the shape of a truncated cone extends from the flat face (22) of the six-headed head (21) and has a base (23A) with an increased diameter (d1), the threaded portion extending along the axis (E1) with a slight taper such that the end portion (23B) has a reduced diameter (d2). The slight angle (#) formed by the threaded portion (23) provides gradual sealing points (PV) for punctually sealing damaged threaded openings (AB) of various oil pans (CT), thus preventing leakage of lubricant oil.

A pipe installation system includes a plug assembly, an installation head, a driver assembly, and a grout supply line. The installation head has a leading portion extending along a central axis, a mating portion which mates with a new pipe, a grout ejection port positioned within the leading portion, and a grout conduit connected to the grout ejection port. The leading portion has a tapered nose that extends from a first end to a maximum cross-section portion. The grout ejection port is positioned no further rearward than the maximum cross-section portion of the leading portion. The cross-section of the first end is smaller than a cross-section of the plug assembly. The cross-section of the maximum cross-section portion is at least as big as the cross-section of the plug assembly.

The invention relates to an intervention method for acting on the wall of a fluid pipeline by using a tool comprising a pipe segment and at least first means for creating sealing and second means for creating sealing, the method comprising a step of moving the tool inside the pipeline until the pipe segment is positioned facing a zone of the wall of said pipeline, the method further comprising a step of creating sealing upstream and downstream from said zone respectively by using the first and second means for creating sealing so as to seal off an outer portion of a segment of the pipeline around said zone, followed by a step of acting on said zone of the wall.

An expansion plug includes a first collar configured to advance as it rotates relative to a shaft, a second collar configured to move axially along the shaft without rotating, a first expanding structure, and a second expanding structure disposed in the stated order on the shaft. When the first collar is rotated in an advancement direction, opposite sides of the second expanding structure are moved closer together to expand the second expanding structure, and then opposite sides of the first expanding structure are moved closer together to expand the first expanding structure.

A device for inserting a leak control plug into a leak. The device includes a frame comprising a frame tube that extends in a first direction, a gripping tube that is positioned in the frame tube and extends in the first direction, wherein the gripping tube has a gripping end that is provided with a gripping element that is configured to grip a leak control plug nut, and a trigger device that is connected to the frame, wherein the trigger device comprises at least one trigger. The at least one trigger is operatively coupled to the gripping tube, such that a movement of the at least one trigger moves the gripping tube in a retracting direction, and wherein the gripping tube is rotatable arranged in the frame tube.