High-strength sucker rod off the device is to address anti-rod pumping oil well pumping oily pole in underground work, due to a variety of factors to produce the radial rod string torque, resulting in loose oil threaded rod connected to form a de-buckle accident and developed by proven field use, the required conditions, in the deep, can effectively eliminate the rod tripping accidents.
■ The main parameters
Specifications：CYG25, CYG22, CYG19 type
Maximum outside diameter：55MM、50MM、50MM
Maximum static load 340KN, use the load 200KN
Threaded connection：CYG25, CYG22, CYG19 oil bar buckle
Media：General corrosive well fluids
■ Structure principle
High-strength sucker rod on the anti-off mainly by the joint, adjustment screws, gaskets, tee, connection units, under the joints and other accessories. Downhole sucker rod in the course of their work, due to the deep well pump piston reciprocating motion, the rod is constantly alternating axial load, in addition to the oil rod weight, liquid density, viscosity, wax, depth, inclination and other factors, resulting in radial torque. Uses high-intensity anti-off elbow-like structure. Oil the radial torque rod to get rid of this, to prevent the loosening of oil threaded rod. In addition, uses high-intensity anti-carrying rods off the overall structure, the application of advanced oil-rod fabrication process for all parts and threaded, the perfect solution to their existing technology fracture.
1、high-strength anti-off device under normal circumstances should be connected to the rod near the middle, or the previous section is easy trip well depth, can be a single-stage, multi-level can also be used.
2、the new anti-off device should be carefully examined before to go down the threaded, tighten loose screws at the damage, and other quality defects, axial clearance shall not be> 0.1ΜΜ, under the joint rotating flexible and not loose, not mine, to ensure good before they go down.
3、the connection should be the first oil bar with a very anti-off device specifications, using the female side buckle up, buckle the public right-side-down connection.
4、anti-imperial off device installed, pliers pliers to bite in a special position. Threaded to be cleaned, coated threaded oil, according to the requirements of a considerable size of the sucker rod torque force.
5、the operation is completed, with the anti-pump up the device must be cleaned off, go down under the new anti-off control requirements prior to examination, really no problem, before re-use, for two years in the underground anti-cumulative and should be scrapped off the device ,
6、anti-pull off the device operation in the process, must be maintained at both ends of the retaining wire and added wear out after well site shall not be packed into the ground. Prevent soil, dirt. No collision handling, bending under the joint after the end of life, straight hit with a hammer to use is strictly prohibited.
7、the use of anti-off device of the wells, the threaded rod and tighten torque based upon the requirements, to ensure the results.