James B Estep

US Patent:

6349763, Feb 26, 2002

Filed:

Aug 20, 1999

Appl. No.:

09/377982

Inventors:

James W. Estep - Houston TX
Albert Odell - Kingwood TX
Harold D. Johnson - Houston TX

Assignee:

Halliburton Energy Services, Inc.

International Classification:

E21B 2700

US Classification:

166 664, 175232, 175234

Abstract:

A preferred novel circulating sub includes an electric motor, hydraulic intensifier, connecting rod, valve sleeve, valve plug, and angled nozzles. Upon activation of the circulating sub the electric motor drives the valve sleeve over the valve plug, causing a flow of drilling fluid to exit the angled nozzles. Upon deactivation of the circulating sub, the electric motor removes the valve sleeve from the valve plug, allowing the flow of drilling fluid to once again flow to the drill bit. Because the electric motor is reversible, the circulating sub can be repeatedly activated and deactivated.

US Patent:

6367366, Apr 9, 2002

Filed:

Jun 20, 2000

Appl. No.:

09/599071

Inventors:

Duane Bloom - Anaheim CA
James W. Estep - Houston TX
Rudolph Ernst Krueger - Houston TX
Bruce Norman Moore - Aliso Viejo CA
Kwang M. Yoo - Houston TX

Assignee:

Western Well Tool, Inc. - Anaheim CA

International Classification:

F01B 3112

US Classification:

92 5R

Abstract:

A sensor assembly including a sensor mounted on the piston and a transmitter mounted on either the piston or cylinder. Preferably the transmitter includes a wheel which engages the wall of the cylinder so as to rotate as the piston reciprocates within the cylinder. The wheel includes one or more magnets which emit a magnetic field that is received by the sensor as the wheel rotates whereby the sensor provides a signal indicative of the rotation of the wheel. The sensor then sends the signal to a logic component which determines the direction, travel and position of the piston within the cylinder.

US Patent:

6543532, Apr 8, 2003

Filed:

Jul 2, 2001

Appl. No.:

09/897355

Inventors:

James W. Estep - Houston TX
Albert Odell - Kingwood TX
Harold D. Johnson - Houston TX

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B 2700

US Classification:

166 664, 175232, 175234

Abstract:

A preferred novel circulating sub includes an electric motor, hydraulic intensifier, connecting rod, valve sleeve, valve plug, and angled nozzles. Upon activation of the circulating sub the electric motor drives the valve sleeve over the valve plug, causing a flow of drilling fluid to exit the angled nozzles. Upon deactivation of the circulating sub, the electric motor removes the valve sleeve from the valve plug, allowing the flow of drilling fluid to once again flow to the drill bit. Because the electric motor is reversible, the circulating sub can be repeatedly activated and deactivated.

US Patent:

6712146, Mar 30, 2004

Filed:

Nov 30, 2001

Appl. No.:

09/998125

Inventors:

James W. Estep - Houston TX
Michael Chang - Houston TX

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B 2300

US Classification:

166377, 166 651, 166 664, 1662426, 1662427, 175320

Abstract:

A disconnect assembly connecting two portions of a downhole assembly having a downhole apparatus attached to a coiled tubing string. The disconnect assembly includes a first housing connected to one portion of the downhole assembly and a second housing connected to another portion of the downhole assembly. The housings are releasably connected by a release assembly. The release assembly is coupled to a drive train on a motor by a connection transferring rotational motion into translational motion. The release assembly includes locking members having a connected position engaging both housings and a released position wherein the housings can be separated. The motor is connected to the surface by conductors extending through the coiled tubing whereby the motor may be actuated from the surface to move the release assembly between the connected and disconnected positions.

US Patent:

6840337, Jan 11, 2005

Filed:

Aug 28, 2002

Appl. No.:

10/229964

Inventors:

James B. Terry - Houston TX, US
Carey J. Naquin - Katy TX, US
Patrick Laursen - Sugar Land TX, US
James Estep - Houston TX, US
Martin Paulk - Houston TX, US
E. Alan Coats - The Woodlands TX, US
Ron Crook - Duncan OK, US
Rickey L. Morgan - Comanche OK, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B 2108

US Classification:

175 38, 175 61, 175 76, 1753251, 175391, 175 99, 175 62, 175215, 166312, 166 50, 138108

Abstract:

An apparatus and method for removing cuttings in a deviated borehole using drilling fluids. The apparatus includes a pipe string and a bottom hole assembly having a down hole motor and bit for drilling the borehole. The pipe string has one end attached to the bottom hole assembly and does not rotate during drilling. The apparatus and methods raise at least a portion of the pipe string in the deviated borehole to remove cuttings from underneath the pipe string portion.

US Patent:

6923273, Aug 2, 2005

Filed:

Oct 7, 2002

Appl. No.:

10/265786

Inventors:

James B. Terry - Houston TX, US
Thomas Platt Wilson - Houston TX, US
Jay M. Eppink - Spring TX, US
William F. Trainor - Houston TX, US
James W. Estep - Houston TX, US
Haoshi Song - Sugar Land TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B007/04
E21B047/02

US Classification:

175 45, 175 61, 175 73, 175320, 138125, 324369, 702 6

Abstract:

The drilling system includes a work string supporting a bottom hole assembly. The work string including lengths of pipe having a non-metallic portion. The work string preferably includes a composite coiled tubing having a fluid impermeable liner, multiple load carrying layers, and a wear layer. Multiple electrical conductors and data transmission conductors may be embedded in the load carrying layers for carrying current or transmitting data between the bottom hole assembly and the surface. The bottom hole assembly includes a bit, a gamma ray and inclinometer instrument package, a steerable assembly, an electronics section, a transmission, and a power section for rotating the bit. It may or may not include a propulsion system. The drilling system may be a gravity based drilling system that does include a propulsion system. Various motive means may be provided such as gravity, to apply weight on the bit.

US Patent:

7172038, Feb 6, 2007

Filed:

Nov 15, 2004

Appl. No.:

10/988930

Inventors:

James B. Terry - Houston TX, US
Thomas Platt Wilson - Houston TX, US
Jay M. Eppink - Spring TX, US
Albert C. Odell - Kingwood TX, US
William F. Trainor - Houston TX, US
James W. Estep - Houston TX, US
Haoshi Song - Sugar Land TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B 7/04
E21B 47/02

US Classification:

175 45, 175 61, 175 73, 175320, 324369, 702 6

Abstract:

The drilling system includes a work string supporting a bottom hole assembly. The work string including lengths of pipe having a non-metallic portion. The work string preferably includes a composite coiled tubing having a fluid impermeable liner, multiple load carrying layers, and a wear layer. Multiple electrical conductors and data transmission conductors may be embedded in the load carrying layers for carrying current or transmitting data between the bottom hole assembly and the surface. The bottom hole assembly includes a bit, a gamma ray and inclinometer instrument package, a steerable assembly, an electronics section, a transmission, and a power section for rotating the bit. It may or may not include a propulsion system. The drilling system may be a gravity based drilling system that does include a propulsion system. Various motive means may be provided, such as gravity, to apply weight on the bit.

US Patent:

20040040707, Mar 4, 2004

Filed:

Aug 29, 2002

Appl. No.:

10/230814

Inventors:

Ronald Dusterhoft - Houston TX, US
Richard Vaclavik - Houston TX, US
Patrick Laursen - Houston TX, US
James Estep - Houston TX, US
Haoshi Song - Houston TX, US
Martin Paulk - Houston TX, US
James Terry - Houston TX, US

International Classification:

E21B043/16

US Classification:

166/279000, 166/306000, 166/072000

Abstract:

Apparatus and methods are disclosed for sequentially treating multiple zones in underground formation in a single trip of the well treatment work string. In the one embodiment, the work string includes composite tubing having electrical conductors embedded within the walls, the conductors enabling power transmission and two way communication between the surface and the sensor or detectors downhole so that real time data can be sensed and communicated. Isolation packers are actuated via electrical signals from the surface communicated to the bottom hole assembly via the conductors. A detector located in the bottom hole assembly may be provided to detect perforations or other anomalies in the casing, such as joints, enabling the surface controller to position packers properly in blank segments of casing so that well intervals can be properly isolated and the adjacent formation effectively treated.