SYSTEM FOR SUBSEA OIL OR GAS FIELD DEVELOPMENT

摘要

FIELD: oil and gas industry.;SUBSTANCE: system contains at least one modular shaft with the central unit placed under water and an uprise buried to the ocean bottom and at least one air-lock chamber to transport duty shifts of workers, materials and equipment. Besides the system comprises at least one drilling area with a horizontal tunnel branched from the uprise in the central unit, and an inclined area for delivery of drill pipes and a vertical area in which bottom part there is a wellhead of at least one well. A power cable and control systems as well as pipeline in the protective shell for oil and gas transportation are connected to the modular shaft.;EFFECT: increasing development efficiency of subsea oil and gas deposits.;9 cl, 56 dwg