FIELD: oil, gas and coke-chemical industries.
SUBSTANCE: invention relates to oil and gas industry. Downhole filter with soluble element comprises housing with holes tightly closed with chemically soluble material removed under action of chemical solution for preset time. Soluble element is made in form of protective casing located on inner surface of housing with holes with possibility of formation of internal-flush smooth inner diameter. Soluble element is a layer of chemically soluble material of specified thickness, which provides tight attachment on inner surface of housing and in holes of housing, tightly closing them, and providing reinforcement housing with holes. Housing with holes is at least one tubular element with holes.
EFFECT: invention can be used in construction of various horizontal, directional wells, including those with extended reach drilling (ERD), for casing interval of productive horizon.
6 cl, 4 dwg
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