DISINTEGRABLE METAL CONE, METHOD OF ITS PRODUCTION AND ITS USE Russian patent published in 2016 - IPC E21B23/06 C22C1/05 

FIELD: mining.

SUBSTANCE: group of inventions relates to mining and can be used for disintegrable downhole tools. Frustoconical member includes a metal composite that has a cellular nanomatrix comprising a metallic nanomatrix material; metal matrix disposed in the cellular nanomatrix; and a first frustoconical portion. Frustoconical member has a disintegration rate of about 1 mg/cm²/hr to about 10,000 mg/cm²/hr. Method of making the frustoconical member includes combining a metal matrix powder, disintegration agent, and metal nanomatrix material to form a composition; compacting the composition to form a compacted composition; sintering the compacted composition; and pressing the sintered composition to form the frustoconical member having a tapered portion on an outer surface of the frustoconical member. Frustoconical member can be used by contacting a frustoconical portion of the frustoconical member to a tapered surface of an article; applying pressure to the frustoconical member; urging the frustoconical member in a direction relative to the article to expand a radial dimension of the article; and contacting the frustoconical member with a fluid to disintegrate the frustoconical member.

EFFECT: technical result consists in improved efficiency of tools containing element in the shape of a conical prism.

30 cl, 25 dwg