William D Maurer

US Patent:

6530437, Mar 11, 2003

Filed:

Jun 5, 2001

Appl. No.:

09/874179

Inventors:

William C. Maurer - Houston TX
William J. McDonald - Houston TX

Assignee:

Maurer Technology Incorporated - Sugar Land TX

International Classification:

E21B 2101

US Classification:

175 5, 175 65, 175206, 175207, 166310

Abstract:

A multi-gradient system for drilling a well bore from a surface location into a seabed includes an injector for injecting buoyant substantially incompressible articles into a column of drilling fluid associated with the well bore. Preferably, the substantially incompressible articles comprises hollow substantially spherical bodies.

US Patent:

7303363, Dec 4, 2007

Filed:

Sep 10, 2003

Appl. No.:

10/659410

Inventors:

Gus E. Krause - Arlington TX, US
William B. Maurer - Houston TX, US
Glenn G. Born - Fort Worth TX, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

B23B 47/22
B23B 47/24

US Classification:

408130, 408 5, 408 6, 408 17

Abstract:

A drill has a tubular outer housing and a tubular inner housing. The inner housing is movable between extended and retracted positions. A pneumatic motor with a chuck mounts to the inner housing. Air pressure is delivered to annular pistons to cause the inner housing to extend and retract. Also, an annular hydraulic chamber with a variable orifice bypass controls the rate of feed. A processor records the total number of holes being drilled as well as recording the time duration for each hole.

US Patent:

7798751, Sep 21, 2010

Filed:

Nov 20, 2007

Appl. No.:

11/986276

Inventors:

Gus E. Krause - Arlington TX, US
William B. Maurer - Houston TX, US
Glenn G. Born - Fort Worth TX, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

B23B 47/22
B23B 47/24

US Classification:

408130, 408 5, 408 6, 408 17

Abstract:

A drill has a tubular outer housing and a tubular inner housing. The inner housing is movable between extended and retracted positions. A pneumatic motor with a chuck mounts to the inner housing. Air pressure is delivered to annular pistons to cause the inner housing to extend and retract. Also, an annular hydraulic chamber with a variable orifice bypass controls the rate of feed. A processor records the total number of holes being drilled as well as recording the time duration for each hole.

US Patent:

20050139359, Jun 30, 2005

Filed:

Dec 15, 2004

Appl. No.:

11/012502

Inventors:

William Maurer - Houston TX, US
Charles King - Austin TX, US

International Classification:

E21B043/04

US Classification:

166380000, 166384000, 166207000

Abstract:

In one embodiment, a wellbore completion method includes disposing an expandable screen assembly into a wellbore, in which the expandable screen assembly includes a base pipe, an intermediate expansion system, and a screen element. The method further includes radially expanding the base pipe and radially expanding the intermediate expansion system after radially expanding the base pipe.

US Patent:

20050139393, Jun 30, 2005

Filed:

Dec 28, 2004

Appl. No.:

11/024285

Inventors:

William Maurer - Houston TX, US
William McDonald - Houston TX, US

International Classification:

E21B007/00

US Classification:

175057000, 175040000, 175073000, 166065100

Abstract:

In one embodiment, a wellbore power generation method includes causing a fluid to flow through a downhole turbine, and causing the turbine to rotate a generator. At least one of a turbine configuration and a flow rate of the fluid is selected to cause the downhole turbine to operate near its runaway speed, such that changes in load applied to the generator do not substantially affect a rotation rate of the downhole turbine.

US Patent:

20050139394, Jun 30, 2005

Filed:

Dec 15, 2004

Appl. No.:

11/012980

Inventors:

William Maurer - Houston TX, US
Charles King - Austin TX, US

International Classification:

E21B004/00
E21B043/04

US Classification:

175065000, 175093000, 175107000

Abstract:

In one embodiment, a wellbore completion method includes disposing an expandable screen into a well bore and disposing a fluid into an annular space between a wall of the wellbore and the expandable screen. The fluid contains a plurality of near neutrally-buoyant particles. The method further includes radially expanding the screen, whereby the near neutrally-buoyant particles exert a force against the wall of the wellbore.

US Patent:

46659978, May 19, 1987

Filed:

Jul 26, 1985

Appl. No.:

6/759248

Inventors:

William C. Maurer - Houston TX
William J. McDonald - Houston TX

Assignee:

Maurer Engineering Inc. - Houston TX

International Classification:

E21B 402

US Classification:

175107

Abstract:

A downhole motor and bearing assembly for high pressure operation has a tubular housing with an inlet and outlet for flow of drilling fluid. A stator is supported in the housing and a rotor is supported for rotary movement in the stator. An open tubular shaft is connected to the rotor for rotary movement in the housing. The bearing assembly has bearing members in the housing in fixed spaced relation for carrying downward and upward longitudinal thrust loads. Since the motor is designed for high pressure operation, conventional bearings tend to wear out rapidly. In this motor and bearing assembly, the pressure of drilling fluid passing through the motor is bled into the down hole side of the bearings where the pressure is applied against an upset on the bearings shaft having an exposed area on the lower side sufficient to produce an upward thrust partially or completely offsetting the downward thrust produced by the pressure drop across the drill bit. The pressure balanced bearing assembly is operable in combination with any motor operating on flow of fluid, including Moineau motors, turbodrills, etc.

US Patent:

49363972, Jun 26, 1990

Filed:

Mar 27, 1989

Appl. No.:

7/328890

Inventors:

William J. McDonald - Houston TX
William C. Maurer - Houston TX

Assignee:

Slimdril International, Inc. - Houston TX

International Classification:

E21B 402
E21B 3410
E21B 4400

US Classification:

175 26

Abstract:

An earth drilling apparatus has a pneumatic motor operated earth drilling tool, a valve assembly connected to the motor, and a drill string connected to the valve and to a source of pneumatic fluid. The drilling tool has an earth drilling bit and a rotor/stator motor section to apply a rotational force to rotate the bit at the bottom of the string. The valve assembly is disposed between the drilling tool motor and the source of pneumatic fluid and controls the flow of pneumatic fluid to the tool. The valve assembly has a pneumatic pressure-operated valve which is operable in response to the pressure of pneumatic fluid in the drill string to be opened to permit flow of pneumatic fluid to the tool at a predetermined operating pressure to transmit an initial pulse of pneumatic fluid to initiate operation of the motor. The valve is kept open at a lower pressure than that required to open it. The valve is a pressure operated valve, spring-loaded toward closed position, which opens at a first predetermined pneumatic pressure permitting flow to said tool and closes at a second, substantially lower, pneumatic pressure.

Author:

William C Maurer

ISBN #:

0878141170

Address:

6615 N Lk Rd, Bergen, NY 14416

Phone:

585 494-1094

VIN:

5NMSG13D77H092467

Make:

HYUNDAI

Model:

SANTA FE

Year:

2007