Method of moving a drilling rig long and short distances
US4324077A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1979 |
| Grant date | Apr 13, 1982 |
| Priority date | — |
| Expiry date | Oct 26, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B15/003
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A line of detachably connected skid frames is laid down at a first drilling position for supporting an oil well drilling rig having a base seated on the frames with some of them extending away from opposite ends of the base. After the well has been completed, the rig is skidded along the line of frames to one or more nearby drilling locations, but for movement to a more distant drilling location, some of the skid frames then are temporarily attached to the bottom of the base and disconnected from the rest of the frames. Then wheels are attached to the opposite ends of the base, which is raised along with the attached skid frames relative to the wheels to lift the rig. After towing the wheel-supported rig over the ground to a new drilling location, it is lowered until the skid frames attached to it rest on the ground again.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.