Novel blowout-prevention on-off connector
A kind of disconnector, a new type of technology, applied in wellbore/well components, earthwork drilling, sealing/packaging, etc., can solve the problems of the blowout preventer disconnector not working normally, affecting oil production, grinding and leveling, and achieving the solution The effect of smoothing the inner steps, prolonging the service life and reducing the stress concentration phenomenon
Pending Publication Date: 2020-02-07
LIAONING XINHUA INSTR CO LTD
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Problems solved by technology
[0002] The applicant of this patent has developed "a blowout preventer disconnector", the patent number is 200910219715.5. This disconnector has the phenomenon that the root of the docking claw is broken during use, and the inner steps of the docking claw are ground flat, resulting in the blowout prevention disconnection The device cannot work normally, thus affecting oil production
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[0012] See Figure 1-3 , this product adopts the existing technology structure as follows: on the central rod 1, the claw 2 is fixedly connected with the countersunk head screw 3, and the support sleeve 5, the protective sleeve 7 and the lock sleeve 8 are assembled on the central rod 1, and the claw 2 is connected with the support Assemble spring (B) 4 and spring (A) 6 between sleeves 5, support sleeve 5 and lock sleeve 8 respectively; set sealing working cylinder 14 on the outside of claw 2 and locking sleeve 8, and seal the inner side of working cylinder 14 A sealed inner cone step is set, and an outer cone step in contact with the inner cone step of the sealed working cylinder 14 is arranged on the lock sleeve 8; The drive sleeve 11 is assembled movable, and the drive pin 10 that passes through the sliding hole of the drive pin is fixedly connected on the drive sleeve 11; the outer end of the drive pin 10 is connected with the anti-blowout sliding sleeve 9, and the drive sl...
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Abstract
The invention relates to a novel blowout-prevention on-off connector. The novel blowout-prevention on-off connector comprises a central rod, a clamping jaw, a spring A, a spring B, a supporting sleeve, a locking sleeve, a butt joint claw, a sealed working cylinder, a transmission sleeve, a transmission pin, a wavy spring and a blowout-prevention sliding sleeve and is characterized in that the buttjoint claw is provided with five opening grooves, the opening grooves are divided into the long grooves, the middle groove and the short grooves, and the long opening grooves, the middle opening groove and the short opening grooves are mutually spaced; the groove bottoms of the opening grooves are in arc-shaped through connection; and the surface of an inner step of the butt joint claw is coatedwith an abrasion-resistant alloy coating. The novel blowout-prevention on-off connector has the positive effects that the two sides of each single claw body of the butt joint claw are provided with the corresponding opening grooves with different lengths to disperse stress concentration points, meanwhile the root of the butt joint claw is in arc-shaped fillet transition, the stress concentration phenomenon is reduced, the fatigue strength of the butt joint claw is improved, and the problem of root fracture of the butt joint claw is solved well; and the inner step of the butt joint claw is treated through the abrasion-resistant alloy coating, so that abrasion of an inner step of the on-off connector is reduced, the ground flush phenomenon of the inner step is avoided, and the service life of the blowout-prevention on-off connector is prolonged.
Description
technical field [0001] The invention belongs to oil production equipment, in particular to a novel blowout preventer disconnector. Background technique [0002] The applicant of this patent has developed "a blowout preventer disconnector", the patent number is 200910219715.5. This disconnector has the phenomenon that the root of the docking claw is broken during use, and the inner steps of the docking claw are ground flat, resulting in the blowout prevention disconnection The device cannot work normally, thus affecting oil production. Contents of the invention [0003] The purpose of the present invention is to provide a new type of anti-blowout disconnector, which can reduce the stress concentration phenomenon of the docking claws, improve the fatigue resistance of the docking claws, solve the problem of root fracture of the docking claws, improve the wear resistance of the inner steps of the docking claws, and extend the life of the docking claws. The service life of th...
Claims
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IPC IPC(8): E21B33/06E21B23/00
CPCE21B23/00E21B33/06
Inventor 梁伟成梁闯
Owner LIAONING XINHUA INSTR CO LTD