| 摘要 |
FIELD: oil and gas industry.SUBSTANCE: device for sealing of submersible pump cable and capillary tubing at the wellhead comprises a hollow cylindrical case, a support washer, sealing washers, a compression element, a packing nut and a tube with a capillary tube passing through it. The tube is fixed rigidly to annular space of the well and equipped with a thrust, a sealing element, a packing washer, a cup nut and a support washer. The branch equipped with a valve is fixed rigidly to the tube.EFFECT: improved efficiency of oil recovery due to reduction of asphaltene, resin and paraffin deposits and saline deposits at the pumping equipment and corrosion of oil field equipment by dosing of chemicals to the well through capillary tubing.3 dwg |
