BOHRLOCHMESSVORRICHTUNG UND HERSTELLUNGSVERFAHREN.
摘要
<p>A replaceable insulating sleeve is disposed around the lower end of a drill string used in drilling a well. The sleeve is restrained from rotating relative to the drill string, but can be released and quickly slipped off the drill string in the field to permit rapid replacement if damaged, or if alternate equipment is required. The sleeve carries sensing means for measuring a characteristic of formations penetrated by the well. Anchor means on the sensing means prevents it from rotating relative to the sleeve.</p>
申请公布号
DE122932(T1)
申请公布日期
1985.02.14
申请号
DE19830903434T
申请日期
1983.09.19
申请人
EXPLORATION LOGGING, INC., SACRAMENTO, CALIF., US
发明人
MORE, SANCTUARY, HENRY, CARMICHAEL, CA 95608, US;KOCH, ELLIS, CHRISTOPHER, SACRAMENTO, CA 95831, US