| 摘要 |
A tubular injector with snubbing jack and oscillator, which eliminates t he need for overhead tubular and oscillator support structure and utilizes resonant vibration to remove tubulars (2) and other objects which are stuck in a well . In a first embodiment the apparatus includes a mechanical oscillator (22) mount ed on a snubbing jack (30), wherein the tubular load on the snubbing jack (30) can be released and transferred to the oscillator (22) when the tubular (2) is stuck, for vibrating and loosening the tubular (2) in the well. In another embodime nt the apparatus is designed to handle coiled tubing (6) and a snubbing-type ja ck (39) is used in association with a conventional coiled tubing guide (37) and a coiled tubing injector (14), for guiding the coiled tubing (6) from a reel through the guide (37) and through a hollow tubular stem (9) in the oscillating apparatus (22), into the injector (14) and the well.
|
