FIELD: oil and gas industry.
SUBSTANCE: invention refers to drilling of oil and gas wells. Well drilling and completion method involves drilling of the main shaft coming from surface to one or several underground beds, and drilling of several side shafts of the main shaft to the enclosing bed. Side shafts shall be shorter and of smaller diameter than parameters of the main shaft; each side shaft is located at relatively short distance from neighbouring side shafts; at that, side shafts shall be filled with gravel which is stabilised at connection points of side shafts with the main shaft to prevent gravel penetration into the main shaft.
EFFECT: improving operating qualities of the bed.
18 cl, 13 dwg
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