GAS AND GAS CONDENSATE OPEN HOLE WELL DESIGN Russian patent published in 2010 - IPC E21B43/10 

FIELD: oil- and gas production.

SUBSTANCE: gas and gas condensate open hole well design related to oil-and gas production, particularly to gas and gas condensate deep open hole well design, also to holes with slant directional and horizontal ends, bored in zones with permafrost extensive propagation with high ice content. Gas and gas condensate open hole well design includes conductor, technical and production strings, tail filter, fixed on the production string bottom part with tail suspension, lift string, concentrically installed in the production string and connected to tail suspension. At that the lift string equipped with a well head shut off valve, an inhibitor valve, lift string thermal expansion bend, a circulation valve and a polished tip. Tail suspension equipped with an anchor unit, a parker, a landing nipple, a sub, equipped in upper part with the polished landing place, with ability to interact with lift string polished tip. At that the circulating valve and lift string thermal expansion bend located in immediate proximity form the tail filter head, and the well head shut off valve and the inhibitor valve located under permafrost zone accordingly. In a way that lift string tip and tail suspension sub polished landing place interact with each other, hermetically dividing well bottomhole zone out of tubing zone, lifting string pass though holes and tail filter are equal. Invention develops in formula subclaime.

EFFECT: creation of repairable gas and gas condensate open hole well, with regards of its reliability during production process in with permafrost extensive propagation areas with a high ice content.

5 cl, 1 dwg