Measuring and testing – Borehole or drilling – Downhole test
Patent
1995-03-20
1996-05-07
Williams, Hezron E.
Measuring and testing
Borehole or drilling
Downhole test
304422, 181105, 307 35, G01V 100, E21B 4708
Patent
active
055135285
ABSTRACT:
A method and apparatus for measuring formation characteristics as a function of angular distance segments about the borehole is disclosed. The measurement apparatus includes a logging while drilling tool which turns in the borehole while drilling. Such characteristics as bulk density, photoelectric effect (PEF), neutron porosity and ultrasonic standoff are all measured as a function of such angular distance segments where one of such segments is defined to include that portion of a "down" or earth's gravity vector which is in a radial cross sectional plane of the tool. The measurement is accomplished with either a generally cylindrical tool which generally touches a down or bottom portion of the borehole while the tool rotates in an inclined borehole or with a tool centered by stabilizer blades in the borehole.
REFERENCES:
patent: 5017778 (1991-05-01), Wraight
patent: 5091644 (1992-02-01), Minette
patent: 5130950 (1992-07-01), Orban et al.
patent: 5134285 (1992-07-01), Perry et al.
patent: 5159577 (1992-10-01), Twist
patent: 5163521 (1992-11-01), Pustanyk et al.
patent: 5175429 (1992-12-01), Hall, Jr. et al.
patent: 5237540 (1993-08-01), Malone
patent: 5250806 (1993-10-01), Rhein-Knudsen et al.
patent: 5397893 (1995-03-01), Minette
SPWLA 31st Annual Logging Symposium, Jun. 24-27, 1990. An Innovative Approach to Correct Density Measurements While Drilling for Hole Size Effect. by Best. D.: Wraight, P.; and Holenka J.
Best David L.
Evans Michael L.
Holenka Jacques M.
Kurkoski Philip L.
Sloan William R.
Brock Michael J.
Bush Gary L.
Kanak Wayne I.
Schlumberger Technology Corporation
Williams Hezron E.
LandOfFree
Logging while drilling method and apparatus for measuring stando does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Logging while drilling method and apparatus for measuring stando, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Logging while drilling method and apparatus for measuring stando will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1219975