RONALD D ANDERSON
Electrician at Lindsay St, Houston, TX

4166215, Aug 28, 1979

Sep 23, 1977

5/835933

Ronald A. Anderson - Houston TX

Schlumberger Technology Corporation

G01V 500

250260

In the representative embodiments of the new and improved methods and apparatus disclosed herein, a well tool incorporating the principles of the present invention is arranged for selectively discharging discrete minor quantities of a first radioactive tracer and of a second radioactive tracer. When the tool is stationed in a production well, upon discharge of whichever one of the two tracers that is believed to be miscible in the continuous-phase fluid at that depth location, radiation detectors arranged at spaced locations on the tool respond to provide one or more measurements of the level of radioactivity in the well bore fluids from which one or more dynamic flow characteristics of the continuous-phase fluid at that depth location may be determined.

3954006, May 4, 1976

Jan 31, 1975

5/545859

Ronald A. Anderson - Houston TX
James J. Smolen - Houston TX

Schlumberger Technology Corporation - New York NY

E21B 4710

73155

In the several representative embodiments of the new and improved methods disclosed herein, a cable-suspended spinner-type flowmeter is successively lowered and raised at selected speeds in a well bore containing one or more flowing fluids whose velocity or flow rate are to be determined. In one manner of practicing the invention, the flowmeter is passed back and forth through a lower static well bore interval for establishing the response of the tool at zero flow rates. In this way the output measurements obtained from the runs through the higher or dynamic intervals can be uniquely correlated for accurately determining the velocity and flow rate of the well bore fluids in each dynamic interval independently of differences in fluid viscosity. In another manner of practicing the invention, output measurements obtained upon passing the flowmeter back and forth through a dynamic well bore zone in which the fluids are flowing at a known rate are used for accurately determining the velocity and flow rate in the other dynamic well bore intervals.

3946604, Mar 30, 1976

Oct 5, 1973

5/403764

Ronald A. Anderson - Houston TX

Schlumberger Technology Corporation - New York NY

E21b 4900

73152

In accordance with illustrative embodiments of the present invention, measurements of a plurality of earth formation parameters are combined in a new manner to establish Poisson's ratio for the formations surrounding a borehole which is useful for identifying mechanically competent formations.

4347908, Sep 7, 1982

Jan 17, 1980

6/112941

Ronald L. Anderson - Houston TX

B62D 100

180131

Apparatus is disclosed in which a self-propelled vehicle is caused to traverse a terrain by following a line arranged over the terrain in a predetermined manner, and means are provided for normally holding the line in a position close to terrain and thus out of the way of persons and objects in and around the terrain.