Compact sectionalized drilling mast, power arrangement and support means therefor
US4305237A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1980 |
| Grant date | Dec 15, 1981 |
| Priority date | — |
| Expiry date | Jun 13, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B15/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A sectionalized drilling mast, power arrangement and support means therefor includes base means to support the drilling mast means when reclined and when erect. Drawworks trailer ramp means are secured substantially at right angles to said base means; power source trailer ramp means secured to said drawworks trailer ramp means and extending parallel thereto; first trailer means on said drawworks trailer ramp means with drawworks support means pivotally connected thereto and drawworks means supported thereon; second trailer means on said power source trailer ramp means with power source support means pivotally connected thereto and power source means supported thereon; drilling mast means pivotally connected to the base beam means and extending therealong in vertical spaced relation thereto when in reclined position; setback tower means pivotally connected at one end to the mast and at the other end to the base beam means with a rotary table secured to the setback tower adjacent the mast and extending longitudinally therefrom. Means are provided to elevate the drawworks support means and drawworks, power source support means and power means thereon and the drilling mast respectively…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.