Methods and mechanisms for drilling transversely in a well
US3958649A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 17, 1975 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Jul 17, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L11/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Two methods and four mechanisms are disclosed for drilling at right angles to a vertical well at any location or depth in the well. The drilling mechanisms each comprises a flexible spring biased telescopic fluid conduit having a turbodrill on the lower end thereof for extending from an opening in the side of an elongated cylindrical housing for drilling at right angles to the well. The flexible spring biased telescopic fluid conduit comprises a plurality of axially aligned spools with cylinders interconnecting the adjacent ends of adjacent spools and with a compression spring in each cylinder between the two adjacent spool ends for permitting flexibility and telescopic action of the fluid conduit while resisting high compression and torque loads. Rubber-like rings and serrations increase the friction between the telescopic spools and cylinders, and tongue-and-groove splines between the flexible spring biased telescopic fluid conduit and the elongated cylindrical housing increase friction for receiving torque loads in the right angled drilling mechanism. A method for drilling in a transverse direction from a vertical well and a method for forming and assembling a drilling mechanism…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.