PIPELINE WELL Russian patent published in 2009 - IPC E02D29/12 

FIELD: construction.

SUBSTANCE: metal welded well coated with hydraulic insulation and comprising staked carcass and sheet lining, which create box 1 and neck 2 with hatch cover 3. In walls and overhead cover of box there are holes made for pipe 4 and neck 2. Ladder 5 is fixed under hatch cover 3. Bottom 6 is made with inclination and tray 7 for drainage and collection of condensate and products of pipeline cleaning. For convenience of service personnel tray 7 is closed with grid 8. Hole in wall for pipe 4 is equipped with a gland seal covering pipe 4. Gland seal is fixed to well wall with the possibility to tighten sealing rings inside well. For convenience of assembly on existing pipeline a gland seal is arranged with socket of body and pressing flange. Seal body is installed in hole for pipe with gap and is fixed to wall of box by means of sealed flanged joint. Box is equipped with jacks for alignment of hole with pipe and balancing of well. A through nozzle is installed in hatch cover 3 for lowering of control detectors of air gas content in well.

EFFECT: reduced labour intensity of construction and servicing of pipelines.

1 cl, 5 dwg