Boring or penetrating the earth – Processes
Patent
1977-10-03
1979-05-08
Purser, Ernest R.
Boring or penetrating the earth
Processes
175 45, 175 62, 166 65R, E21B 700
Patent
active
041531205
ABSTRACT:
A hole in the earth is formed utilizing a drill string containing an instrument connected by a flexible conductive line to a unit at the surface of the earth. During intervals when the length of the drill string is being changed, as by addition of another pipe section to the outer end of the string, the connection between the flexible line and the surface unit is temporarily broken, so that the instrument and line can be left in the drill string while the section is added and for ultimate reconnection to the surface unit through the added section. A portion of the flexible line may be wound about an element in the string, to be unwound therefrom each time that the string is lengthened, to thereby correspondingly increase the effective length of the line.
REFERENCES:
patent: 2232360 (1941-02-01), Barnett
patent: 2249769 (1941-07-01), Leonadon
patent: 2370818 (1945-03-01), Silverman
patent: 2706616 (1955-04-01), Osmun
patent: 3285629 (1966-11-01), Cullen et al.
patent: 3825079 (1974-07-01), Heilhecker
patent: 3913688 (1975-10-01), Heilhecker et al.
patent: 4001774 (1977-01-01), Dawson et al.
Teys Raymond W.
Zuvela Bernard R.
Favreau Richard E.
Green William P.
Purser Ernest R.
Scientific Drilling Controls
LandOfFree
Change in length of drill string while instrument remains therei does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Change in length of drill string while instrument remains therei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Change in length of drill string while instrument remains therei will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1229679