Oil and gas reservoir electric logging overflow safety control wireline hanger

An oil and gas reservoir electronic logging overflow safety control wireline hanger, comprising a body and a wireline clamping apparatus,

• wherein threads are provided on a part of an outer surface of an upper end of the body, the body is provided with a tapering-down truncated cone shaped passage and a wireline entry opening extending along a vertical direction to receive a wireline, a detachable support apparatus is fixed to the upper end of the body, and the wireline clamping apparatus comprises two wedges each of which has a sector shaped cross-section and a tapering-down truncated cone shape corresponding to the truncated cone shaped passage, and
• wherein the two wedges are symmetrically fixed inside the truncated cone shaped passage so that a wireline hole is formed between the two wedges, when the two wedges are fully pressed together, a diameter of the wireline hole is less than that of the wireline received between the two wedges;
• wherein the detachable support apparatus comprises at least two supporting rods, and the supporting rods are fixed in radial screw holes provided in the body via threads provided at one end of each of the supporting rods;
• wherein a straight passage is provided in the body below the truncated cone shaped passage, and bottoms of the two wedges have a truncated cone shape corresponding to the straight passage and are positioned inside the straight passage.