Variable rate compliance modules, assemblies and tools for suppression of drilling vibrations
| DWPI Title: Suppression module, has spindle comprising first end and second end, and activation mechanism comprising actuator arranged and fixed to rotate spline mechanism into and out of engagement with ear plate by activating spring, respectively |
| Abstract: A suppression module, a suppression assembly, and a drilling tool are disclosed. The suppression module includes a spindle having a first end and a second end, an ear plate slideably disposed between the first end and the second end, a spring positioned between the ear plate and the first end, and an activation mechanism coaxially disposed around the second end of the spindle. The activation mechanism engages the ear plate, activating the spring, or disengages the ear plate, deactivating the spring. The suppression assembly includes at least two suppression modules in series coupled to a processor. The suppression modules are activated or deactivated by the processor, each of the suppression modules being activated or deactivated independent of the other suppression modules. The drilling tool includes a drill pipe, a drill bit, a vibration sensor, and a suppression assembly between the drill pipe and the drill bit. |
| Use: Suppression module for use in a commercial drilling application i.e. rock drilling for oil and gas typically utilizes elongated drill strings. |
| Advantage: The module allows a bearing to be positioned between a latch mechanism or a top plate and the activation mechanism, so that the bearing can reduce friction as the activation mechanism to be moved between the active and inactive positions. |
| Novelty: The module (300) has a spindle (303) comprising a first end and a second end. An ear plate (309) is slidably fixed between the first end and the second end. A spring is positioned between an ear plate and the first end. An activation mechanism (313) is coaxially fixed around the second end of the spindle. The activation mechanism comprises an actuator (317) arranged and fixed to rotate a spline mechanism into and out of engagement with the ear plate by activating the spring or deactivating the spring, respectively. |
| Filed: 9/16/2016 |
| Application Number: US15267839A |
| Tech ID: SD 12870.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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