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Patent Assignment Abstract of Title

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Total Assignments: 2

Patent #:	7148185	Issue Dt:	12/12/2006	Application #:	10249830	Filing Dt:	05/09/2003
Publication #:	20030236174	Pub Dt:	12/25/2003
Inventors:	Diankui Fu, Yiyan Chen, Zhijun Xiao, Mathew Samuel, Sylvie Daniel
Title:	VISCOELASTIC SURFACTANT FLUIDS STABLE AT HIGH BRINE CONCENTRATION AND METHODS OF USING SAME

Assignment: 1

Reel/Frame:

013648/0164

Recorded: 05/12/2003

Pages: 8

Conveyance:

ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignors:

FU, DIANKUI

Exec Dt:

05/02/2003

CHEN, YIYAN

Exec Dt:

05/09/2003

XIAO, ZHIJUN

Exec Dt:

05/06/2003

SAMUEL, MATHEW

Exec Dt:

05/05/2003

DANIEL, SYLVIE

Exec Dt:

05/06/2003

Assignee:

SCHLUMBERGER TECHNOLOGY CORPORATION

110 SCHLUMBERGER DRIVE

MD-1

SUGAR LAND, TENNESSEE 77478

Correspondent:

SCHLUMBERGER TECHNOLOGY CORPORATION

IP DEPT., WELL STIMULATION

110 SCHLUMBERGER DRIVE, MD1

SUGAR LAND, TX 77478

Assignment: 2

Reel/Frame:

014071/0684

Recorded: 05/19/2003

Pages: 9

Conveyance:

CORRECRTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S ADDRESS PREVIOUSLY RECORDED ON REEL 013648, FRAME 0164. ASSIGNOR HEREBY CONFIRMS THE ASSIGNMENT OF THE ENTIRE INTEREST.

Assignors:

FU, DIANKUI

Exec Dt:

05/02/2003