THOMAS WESLEY ALLEN, DO
Osteopathic Medicine at Darlington Ave, Tulsa, OK

5571281, Nov 5, 1996

Feb 9, 1996

8/598908

Thomas E. Allen - Tulsa OK

B01F 1502, B28C 904

366 2

A cement mixing and slurry density control system utilizes an improved eductor mixer for particular use in a cementing process for an oil or gas well.

6749330, Jun 15, 2004

Nov 1, 2001

09/999339

Thomas E. Allen - Tulsa OK 74137

B01F 504

366136, 3661602, 3661732, 3661782, 3661783

A powder mixing system and mixer for mixing cement used in cementing oil wells or other similar dry powder mixtures. The mixer is provided with a central recirculation jet and with annularly located alternating recirculation and mix water jets that discharge into the mixing chamber of the mixer in an overlapping fashion to effectively wet dry cement introduced into the mixing chamber. The mix water jets are formed from a set of slots provided both in a rotatable element and from another set of slots provided in a stationary portion so that when the rotatable element rotates, the size of mix water jets is adjusted. Two inlet elbows attach to the inlet of the central recirculation jet to cause the flow from the jet to rotate in a diverging pattern.

8192070, Jun 5, 2012

Mar 20, 2008

12/052194

Thomas E. Allen - Tulsa OK, US

Estate of Thomas E. Allen - Tulsa OK

B01F 15/02, B01F 15/00

366136, 3661632, 3661651, 3661771, 366132, 366137, 3661602, 3661732, 3661782, 3661783

A cement mixing method for mixing cement used in cementing oil wells casing and the mixer used in that method. The mixer employs a straight bulk cement inlet, five annular recirculation jets and five annular water jet orifices located downstream of the recirculation jets so that all of the jets discharge at an angle towards the mixing chamber and the discharge from the water jet orifices intersects with the flow from the recirculation jets. This five jet, intersecting flow design allows for more thorough wetting of the cement powder with a smaller, lighter, less expensive and more durable mixer that is less inclined to foul and easier to clean.

7029165, Apr 18, 2006

Apr 8, 2004

10/820892

Thomas E. Allen - Tulsa OK, US

B01F 5/02

3661632, 3661781

An automatically adjusting jet mixer used in mixing fracturing fluid gel for gas and oil wells. The mixer has an inner nozzle and an attached piston that move axially within the mixer's housing to change the size of the nozzle opening thorough which mix water enters the mixer. One side of the piston has a pressure regulated area and an opposite side has an upstream area. The upstream area is connected to the mix water supply pump and the pressure regulated area is connected to the outlet of a pressure regulator that maintains a constant pressure in the pressure regulated area. The piston and the nozzle move via hydraulic pressure exerted on the piston in proportion to the change in pressure in the upstream area to a position that will maintain a constant mixing jet pressure, thus providing constant specific mixing energy, i. e. constant energy per unit mass of fluid.

7600414, Oct 13, 2009

Jan 25, 2007

11/698224

Thomas E. Allen - Tulsa OK, US

G01N 9/02

73 32R

A method for determining absolute density of a slurry that typically contains entrained air, such as cement slurry, in a continuous mixing operation such those used in cementing a gas or oil well. The method obtains density measurements of a slurry at two different pressures and then uses the two density measurements and the two pressure measurements to compute absolute density of the slurry employing the following formula at isothermal conditions: Dabs=D/(1−((D/D−1)/(P/P−1))), where Dabs=absolute density, D=first density, D=second density, P=absolute pressure at which the first density was measured, and P=absolute pressure at which the second density was measured.

8215823, Jul 10, 2012

Aug 16, 2011

13/210811

Thomas E. Allen - Tulsa OK, US

Estate of Thomas E. Allen - Tulsa OK

B01F 15/02, B01F 15/00

366136, 3661632, 3661651, 3661771, 366132, 366137, 3661602, 3661732, 3661782, 3661783

A cement mixing method for mixing cement used in cementing oil wells casing and the mixer used in that method. The mixer employs a straight bulk cement inlet, five annular recirculation jets and five annular water jet orifices located downstream of the recirculation jets so that all of the jets discharge at an angle towards the mixing chamber and the discharge from the water jet orifices intersects with the flow from the recirculation jets. This five jet, intersecting flow design allows for more thorough wetting of the cement powder with a smaller, lighter, less expensive and more durable mixer that is less inclined to foul and easier to clean.

7614276, Nov 10, 2009

Sep 6, 2006

11/516540

Thomas E. Allen - Tulsa OK, US

G01N 9/00

73 32R

A method for determining absolute density of a slurry that typically contains entrained air, such as cement slurry, in a continuous mixing operation such those used in cementing a gas or oil well. The method obtains density measurements of a slurry at two different pressures and then uses the two density measurements and the two pressure measurements to compute absolute density of the slurry employing the following formula at isothermal conditions: Dabs=D/(1−((D/D−1)/(P/P−1))), where Dabs=absolute density, D=first density, D=second density, P=absolute pressure at which the first density was measured, and P=absolute pressure at which the second density was measured.

7223013, May 29, 2007

Apr 8, 2004

10/820602

Thomas E. Allen - Tulsa OK, US

B01F 7/20

366303, 366307, 366314

A hydration tank provided with an interior rotating vessel located between a stationary wall of the hydration tank and a stationary wall of a central inlet tube provided centrally within the tank. Liquid flows downward into the tank via a central inlet tube, then upward between the inlet tube and the rotating vessel, and then again downward between the rotating vessel and the tank wall to the exit. Horizontal vanes are provided on both the inside and outside of the rotating vessel that interleaf with horizontally extending stationary vanes provided on the wall of the tank and the central inlet tube. Together, the stationary and rotating vanes constantly mix the liquid in a direction that is normal to the direction of flow of the liquid without interfering with flow of the liquid through the tank.

7581872, Sep 1, 2009

Feb 28, 2006

11/364705

Thomas E. Allen - Tulsa OK, US

Serva Corporation - Wichita Falls TX

B01F 15/02

366134, 3661525, 3661551, 3661671

A gel mixing system that employs a dynamic diffuser for quickly removing the air from the fluid as the fluid exits a traditional gel mixer and employs progressive dilution of the gel in a series of hydration tanks to maximize hydration time without allowing the gel to become so viscous that it is not easily diluted or pumped. High shear agitation of the fluid between the hydration tanks helps to increase the hydration rate. Progressive dilution of the gel increases residence time of the gel in the tanks and results in longer hydration time in the limited tank space available, resulting in continuous production of gel that is almost fully hydrated when it is pumped to the fracturing blender and subsequently to the well bore without the need for an increase in the volume of the hydration tanks.