发明授权
US4127167A Lubricator for moving well equipment through flow conductor 失效
用于通过流动导管移动井身设备的润滑器

Lubricator for moving well equipment through flow conductor
摘要:
Disclosed is a rod-type lubricator for moving well equipment through a flow conductor. A piston controls movement of the lubricator rod. The rod includes an equipment handling segment and reach segments. As many reach segments as desired may be employed. The distance through which the well equipment may be moved is greater than the stroke of the piston. This abstract is neither intended to define the invention of the application which, of course, is measured by the claims, nor is it intended to limit the scope of the invention in any way.
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