MOBILE WELL REPAIR PLANT Russian patent published in 2005 - IPC

FIELD: oil and gas well operation or underground repair with the use of continuous steel pipes.

SUBSTANCE: mobile plant comprises transportation base having platform mounted on frame thereof. Operator's compartment, reel for flexible pipe winding, injector, guiding arch, pump drive reducer, wellhead sealing means and blowout preventing device are mounted on the platform. U-shaped pole is pivotally connected to the platform in stern part thereof. Operator's compartment and reel for flexible pipe winding are arranged between posts of U-shaped pole. Injector is installed on plate arranged in lower part of U-shaped pole. Plate is pivotally secured to pole posts by the first ends and connected to stern platform part by the second ends through tie rods. Centering mechanism provided with hook suspension is located in upper pole part. Centering mechanism is formed as two guiders and sliding member with rollers. Sliding member is connected to hydraulic cylinder. Guiding arch is fixedly secured to injector and formed as two sections pivotally connected one to another. The sections are provided with hydraulic drive, which provides mutual rotation thereof and permits bringing thereof in collapsed position during transportation.

EFFECT: extended capabilities by providing possibility to perform supplementary works in well.

2 cl, 6 dwg