Substantiation of telescopic structure of production casing string of a well with 2000 meters horizontal end
The article suggests some method of optimization of structure of a production casing string for horizontal wells of big length. Chayadinsky oil and gas condensate field illustrates calculations of diameters and lengths of a production casing string sections. The casing string at a horizontal sector of 2000 meters long is suggested to consist of three sections of different diameters and lengths. This will allow reduction of a casing string weight and provide its running down till final bottom hole area.