Wells – Combined
Patent
1978-03-27
1980-01-22
Purser, Ernest R.
Wells
Combined
166250, 175 45, 175 48, 175 50, 33307, 367 85, E21B 47022
Patent
active
041845455
ABSTRACT:
Measuring and transmitting apparatus is the subject matter of the preferred embodiment which comprises an elongate tubular member functioning as a drill collar and adapted to be placed in a drill string. The apparatus utilizes a mud driven motor, while the mud flows therethrough functioning as a drill collar and out the bottom. The motor creates electric power which is used to operate selected transducers. The transducers form measurements which are encoded. The encoding portion of the equipment utilizes an oil reservoir, a mud driven pump, a valve which dumps the oil back to the reservoir if there is no signal and which otherwise delivers it to a two-position, four-way spool valve which drives a modulated signal generator. The signal generator modulates the back pressure in the mud flow by restricting the mud flow, thereby forming a signal which is sensed in the mud flow path.
REFERENCES:
patent: 2787759 (1957-04-01), Arps
patent: 2978634 (1961-04-01), Arps
patent: 3408561 (1968-10-01), Redwine et al.
patent: 3711825 (1973-01-01), Claycomb
patent: 3713089 (1973-01-01), Claycomb
patent: 3964556 (1976-06-01), Gearhart et al.
patent: 4120097 (1978-10-01), Jeter
Gunn Donald
Nichols Jr. Nick A.
Purser Ernest R.
LandOfFree
Measuring and transmitting apparatus for use in a drill string does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Measuring and transmitting apparatus for use in a drill string, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measuring and transmitting apparatus for use in a drill string will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-330440