| 摘要 |
FIELD: mining. ^ SUBSTANCE: invention refers to oil and gas industry, particularly to facilities for protecting power cable lowered in well on flow strings. The facility for protecting power cable in the well consists of a case and elements of case fixture arranged on flow strings. The case consists of a bushing and a bracket coaxially assembled at a distance equal to the length of the coupling; the bushing and bracket are rigidly connected to each other with two parallel guiding plates tapered on ends. On the surface of the bushing there are made at least two additional plates in form of ribs tapered on ends with length on external facets exceeding the width of the slot between ends of adjacent pipes of producing string. Also two additional ribs on the surface of the bushing are made centering at axial angles plus-minus 120 degrees to axial line of the first cable channel. Two additional ribs can be made parallel to one another, forming the second channel for guiding the second cable into the well. Notably, the width and depth of the formed channel exceeds the width and thickness of the second cable, if it is of flat shape, and diametre of the cable, if it is round. Moreover, the facility can also contain simultaneously two additional centering ribs and two additional channel forming ribs on the bushing. ^ EFFECT: expended functions and increased reliability of cable protection at lowering into well. ^ 4 dwg |
