JAMES NEAL MCCOY
Pilots at Ditto Ln, Wichita Falls, TX

5200894, Apr 6, 1993

Jul 16, 1990

7/552529

James N. McCoy - Wichita Falls TX
Augusto L. Podio - Austin TX
Kenneth L. Huddleston - Wichita Falls TX

James N. McCoy - Wichita Falls TX

G01V 100

364422

An echo sounding system includes an acoustic gun which is mounted to the wellhead of a borehole. The acoustic gun produces an acoustic pulse which is transmitted down the borehole. A tubing string is installed in the borehole and it has substantially evenly spaced collars. Fluid is pumped from the borehole, or well, by use of a reciprocating pump driven by a pump rod extending to the surface. The acoustic pulse produces reflections when it strikes the tubing collars and the surface of the fluid. A microphone detects the reflections to produce a return signal. This signal is digitized and stored. The digitized signal is processed to detect the rate of the collar reflections and the stored signal is narrowband filtered with a passband filter centered at the rate of receipt of the collars. Each cycle of the narrowband filtered signal corresponds to one collar reflection. In this signal, each cycle is counted, and extrapolation used when necessary to produce a collar count extending from the surface to the liquid surface.

5464058, Nov 7, 1995

Mar 17, 1995

8/405736

James N. McCoy - Wichita Falls TX
Augusto L. Podio - Austin TX
James W. Jennings - Hearne TX

E21B 4700

16625001

In a pumping well, oil is normally lifted to the surface by a rod which extends from the surface to a downhole pump. A transducer is attached to the rod at the surface to sense the deformation, i. e. , the change in diameter or circumference of the rod to determine change in rod loading. The transducer includes strain gauges which produce output signals proportional to the change in the diameter or circumference of the rod which occurs due to changes in load on the rod. The transducer may also include an accelerometer. The change in load on the polished rod over a pump cycle is used in conjunction with data produced by the accelerometer to calculate a downhole card. The downhole card showing change in pump load is adjusted to reflect absolute rod load by determining an appropriate offset. Various ways to determine the offset are available. Since the pump plunger load is zero on the downstroke when the traveling valve is open, the value necessary to correct the calculated minimum pump value to a zero load condition may be used as the offset.

5589633, Dec 31, 1996

Apr 7, 1995

8/418378

James N. McCoy - Wichita Falls TX
Jerry B. West - Dallas TX
Augusto L. Podio - Austin TX

G06F 1500

417 63

An oil well pumping unit has a walking beam which raises and lowers a rod connected to a downhole pump. To perform well analysis, it is desirable to know the position of the rod during the stroke. An accelerometer is mounted on the pumping system unit to move in conjunction with the rod. An output signal from the accelerometer is digitized and provided to a portable computer. The computer processes the digitized accelerometer signal to integrate it to first produce a velocity data set and second produce a position data set. Operations are carried out to modify the signal and produce a position trace with stroke markers to indicate positions of the rod during its cyclical operation.

5406482, Apr 11, 1995

Dec 17, 1991

7/808578

James N. McCoy - Wichita Falls TX
Jerry B. West - Dallas TX
Augusto L. Podio - Austin TX

G06F 1500, E21B 4700

364422

An oil well pumping unit has a walking beam which raises and lowers a rod connected to a downhole pump. To perform well analysis, it is desirable to know the position of the rod during the stroke. An accelerometer is mounted on the pumping system unit to move in conjunction with the rod. An output signal from the accelerometer is digitized and provided to a portable computer. The computer processes the digitized accelerometer signal to integrate it to first produce a velocity data set and second produce a position data set. Operations are carried out to modify the signal and produce a position trace with stroke markers to indicate positions of the rod during its cyclical operation.

5117399, May 26, 1992

Jul 16, 1990

7/552465

James N. McCoy - Wichita Falls TX
Kenneth L. Huddleston - Wichita Falls TX
Augusto L. Podio - Austin TX

G01S 1500, G01U 100

367 99

An echo sounding system includes a acoustic gun which is mounted to the wellhead of a borehole. The acoustic gun produces a acoustic pulse which is transmitted down the borehole. A tubing string is installed in the borehole and it has substantially evenly spaced collars. Fluid is pumped from the borehole, or well, by use of a reciprocating pump driven by a pump rod extending to the surface. Fluid is received from a surrounding formation and collects in the borehole. The acoustic pulse produces reflections when it strikes the tubing collars and the surface of the fluid. A microphone detects the reflections to produce a return signal. This signal is digitized and stored. The digitized signal is processed to detect the rate of the collar reflections and the stored signal is narrowband filtered with a passband filter centered at the rate of receipt of the collars. The data signal is further processed to determine the time of occurrence of the acoustic pulse and the liquid surface reflection. Each cycle of the narrowband filtered signal corresponds to one collar reflection.

5285388, Feb 8, 1994

Jul 16, 1990

7/552545

James N. McCoy - Wichita Falls TX
Kenneth L. Huddleston - Wichita Falls TX

G01V 100

364422

An echo sounding system includes an acoustic gun which is mounted to the wellhead of a borehole. The acoustic gun produces an acoustic pulse which is transmitted down the borehole. A tubing string is installed in the borehole and has substantially evenly spaced collars. Fluid is pumped from the borehole, or well, by use of a reciprocating pump driven by a pump rod extending to the surface. Fluid is received from a surrounding formation and collects in the borehole. The acoustic pulse produces reflections when it strikes the tubing collars and the surface of the fluid. A microphone detects the reflections to produce a return signal. This signal is digitized and stored. The digitized signal is processed to detect the rate of the collar reflections and the stored signal is narrowband filtered with a passband filter centered at the rate of receipt of the collar reflections. The data signal is further processed to determine the time of occurrence of the acoustic pulse and the liquid surface reflection. Each cycle of the narrowband filtered signal corresponds to one collar reflection.

4932253, Jun 12, 1990

May 2, 1989

7/346166

James N. McCoy - Wichita Falls TX

E21B 4700

73151

A load cell is mounted on a polished rod between a rod clamp and a hanger bar. The polished rod is connected to a string of sucker rods that drive a reciprocating pump for lifting fluid from a borehole. The load cell includes a tubular body which is fitted with strain gauges for measuring compressional forces applied to the cell. The ends of the tubular body are shaped with annular spherical surfaces which mate with corresponding surfaces on washers at each end. Each of the washers tightly surrounds the polished rod and as a result of the loading on the polished rod, the washers and rod are forced into coaxial alignment with the load cell. Optionally, the polished rod can receive a centralizing sleeve which forces it to be centered within the tubular body of the load cell or the washers at either end thereof. As a result of the centralized placement of the polished rod, the loading across the cross sectional area of the load cell is made substantially uniform thereby enhancing the operation and life of the load cell.

4934186, Jun 19, 1990

Sep 29, 1987

7/102347

James N. McCoy - Wichita Falls TX

E21B 4700

73151

An apparatus (10) is disclosed for permitting continuous calculations of the depth of the fluid level (12) within a well bore (14) during a test interval. A sonic event is generated in the well bore, and the reflected sonic signals from down hole tubing collars and the fluid surface are sensed and recorded. By knowing the depth of the tubing collars, the fluid depth and speed of sound in the oerlying gas can be computed. Subsequently, the apparatus (10) generates sonic events and records the travel time for the sound to reflect off the fluid surface and return. Measurements of the actual fluid depth and sonic velocity are made at regular intervals, and interpolated between actual measurements to allow the variation in fluid level to be calculated from the measurements of travel time.

5653286, Aug 5, 1997

May 12, 1995

8/440217

James N. McCoy - Wichita Falls TX
Augusto L. Podio - Austin TX

E21B 4300

1661055

A downhole gas separator is connected to the lower end of a tubing string. The separator includes a tubular body which has a decentralizer mounted to one side for driving the opposite side of the separator against an interior wall of the casing. This creates a narrow flow zone between the separator body and the adjacent casing wall and a wider flow zone on the decentralizer side of the body. A fluid inlet is provided on the side of the gas separator tubular body facing the narrow flow zone. The fluid in the narrow flow zone has a substantially higher concentration of liquid than the fluid in the wider flow zone. Fluid, primarily liquid, flows through the fluid inlet into a chamber within the separator. A dip tube transfers the fluid from the separator chamber to the pump.

4408676, Oct 11, 1983

Feb 25, 1981

6/237860

James N. McCoy - Wichita Falls TX

G01V 140

181113

A gas gun assembly for measuring depths of reflectors in a well bore includes a housing having a central chamber and bottom bulkhead through which a first valve bore extends. Coupling structure is provided to connect the housing to the well. A cap closure for the chamber has a second valve bore therethrough of diameter larger than the diameter of the first valve bore and is located in axial alignment with the first valve bore. A valve stem has one end axially movable within the second valve bore while closing the same and the other end movable into and out of the first valve bore. A predetermined pressure condition is established across the bulkhead. The valve stem is then released for rapid equalization of pressure across the bulkhead to produce an acoustic pulse in the well bore.