| 摘要 |
<p>Present embodiments are directed to a resonant extractor system (28) configured to use rotational energy provided by a top drive system (24) to apply vertical oscillating motion to attached tubular or drilling equipment. The extractor (28) includes a rotational component (30, 32), an oscillation component (30, 32), and an assembly of engagement features (60, 64), and the rotational component (30, 32) is coupled with the top drive system (24) such that the top drive system (24) may rotate the rotational component (30, 32) about a vertical axis (65). In certain embodiments, the rotational component (32, 30) is a housing (30), the oscillation component (30, 32) is a quill (32), and the engagement features (60, 64) include a cam (64) disposed on a shaft (60). The shaft (60) is coupled to and extends radially into the housing (30), and the cam (64) disposed on the shaft (60), which features an eccentric geometry relative the shaft (60), maintains contact with a lip (52, 100) extending from the quill (32) in the housing (30). As the housing (30) rotates, the eccentric cam (64) rotates, raising and lowering the quill, (32) which is configured to couple with tubular or drilling equipment.</p> |
