| 摘要 |
FIELD: oil industry.SUBSTANCE: invention relates to oil and gas industry, specifically to equipment for separation and compaction of intervals of producing or injection wells. Packer seal assembly includes a housing with a tubular abutment surface from bottom, elastic sealing member, top and bottom limiting sleeve with trapezoidal section, placed at ends of sealing member which is axially movable. Elastic sealing element is formed with a cross section in shape of a triangle, directed by vertex to housing, and on converging ends of sleeves there are guide grooves to form protrusions having shape of isosceles triangles with base adjacent to body, projections on bushings are staggered providing engagement bushings with axial movement by entering a sleeve of projections into grooves of another.EFFECT: technical result consists in reduction of force on limiting sleeve and high reliability of operation.2 cl, 3 dwg |
