FIELD: oil and gas industry.
SUBSTANCE: invention is related to oil and gas industry and may find application in well design for its selective investigation by parts of interval. Well includes casing pipe string with dielectric elements installed via at least one pipe of casing string, contactor for electric connection with surface, creation of electric contact with pipe or several pipes of casing string and supply of electric current in part of borehole environment. At that possibility is provided for selective heating of part of well space and borehole environment to free well walls from paraffin deposits and melting of viscous or highly viscous oil.
EFFECT: provision of electric current scattering in borehole environment in parts of well interval.
3 ex, 1 dwg
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