P-YAMOG-KB Mechanical Axial-set Packer with an Integrated Hydraulic Anchor, Balancing Valve and Bypass (rated operating pressure up to 70 MPa)

DESCRIPTION APPLICATION

• Recommended for multiple massive hydraulic fracturing in one round-trip in wells with the risk of complicated release after HF;
• for pressure testing and leak finding in the casing string;
• for pressure treatment of formations with chemical agents;
• for remedial works and other well operations which require generating high pressure difference across the packer.

ADVANTAGES

• enlarged passage bore of 50 mm for casing strings with the nominal diameter of 140-146 mm;
• reliable sealing of the production string in the course of operations which require generating high pressure difference across the packer;
• easy packer releasing without additional tensile load;
• long-term performance efficiency at high pressure differences up to 70 MPa and temperatures up to 150 °С;
• multiple use within one round-trip;
• high repairability.

DESIGN FEATURES

• packer design comprises a bypass which is open when the tool runs in and shuts off when the tool is set and a balancing valve;
• packer is set into the well mechanically by axial movements of the string (tubing rotation is not required) and brought into transit position by tensioning of the string;
• to equalize the pressure above and below the packer it’s sufficient to lift the tubing string at not less than 0.5 m;
• when the string is moved upwards the packer gets automatically released and goes back to its transit position;
• enlarged passage bore enables to pump a large volume of proppant during one trip-in operation;
• an integrated hydraulic anchor protected from contact with process fluid during pumping.