FIELD: oil and gas production.
SUBSTANCE: well system consists of well penetrating through salt bed and drilled with solution on base of water and of circular member out of elastic material in circular space between pipeline and salt bed. Elastic material is elastomer swelling at contact with fluid on base of oil. Fluid on base of oil corresponds to fluid replacing drill agent on base of water and to fluid facilitating elastomer swelling. Procedure for drilling a well consists of operations of the said well system.
EFFECT: prevention of well tubes damage in salt bed.
14 cl, 2 dwg
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