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Borehole Seismic Monitoring of Injected CO2 at the Frio Site
As part of a small scale sequestration test (about 1500 tonsof CO2) in a saline aquifer, time-lapse borehole seismic surveys wereconducted to aid in characterization of subsurface CO2 distribution andmaterial property changes induced by the injected CO2. A VSP surveydemonstrated a large increase (about 75 percent) in seismic reflectivitydue to CO2 injection and allowed estimation of the spatial extent of CO2induced changes. A crosswell survey imaged a large seismic velocitydecrease (up to 500 m/s) within the injection interval and provided ahigh resolution image of this velocity change which maps the subsurfacedistribution of CO2 between two wells. Numerical modeling of the seismicresponse uses the crosswell measurements to show that this small CO2volume causes a large response in the seismic reflectivity. This resultdemonstrates that seismic detection of small CO2 volumes in salineaquifers is feasible and realistic.
Date:
April 21, 2006
Creator:
Daley, Thomas M.; Myer, Larry R.; Hoversten, G.M.; Peterson, JohnE. & Korneev, Valeri A.
Object Type:
Article
System:
The UNT Digital Library
Connector for Lamps
Patent for a connector for headlights that allows them to turn and to be operated from one location in the car.
Date:
April 30, 1912
Creator:
McKiel, James B.
Object Type:
Patent
System:
The Portal to Texas History
Check-Line Buckle.
Patent for "...a novel means for connecting a check-line to the main line..." (lines 11-12) including illustrations.
Date:
April 22, 1902
Creator:
Snell, David C. F.
Object Type:
Patent
System:
The Portal to Texas History
Buggy-Spindle
Patent for a buggy spindle for "taking up lost motion in the axle box should it be too short or too worn" (lines 10-11). Illustrations included.
Date:
April 21, 1908
Creator:
Messer, Jeremiah Clark
Object Type:
Patent
System:
The Portal to Texas History
Blind-Stop
Patent for a blind stop for windows and doors. Illustrations included.
Date:
April 30, 1912
Creator:
Labit, Girard E.
Object Type:
Patent
System:
The Portal to Texas History
Combined Harrow and Roller
Patent for a combined harrow and roller for pulverizing and eliminating unwanted growth from the ground. Illustrations included.
Date:
April 9, 1912
Creator:
Younger, Walter E.
Object Type:
Patent
System:
The Portal to Texas History
Checkrein Attachment
Patent for checkrein attachment. This invention is intended for use with harnessed horses. Illustration included.
Date:
April 12, 1904
Creator:
Clary, John A. & Butler, Hard
Object Type:
Patent
System:
The Portal to Texas History
Clamp.
Patent for a clamp "for use in in connection with hoisting-tackle for raising or lowering well-pipes..."(lines 9-10) that has one side attach to the pipe and the other side be releasable from the pipe.
Date:
April 9, 1907
Creator:
Danforth, Joseph B.
Object Type:
Patent
System:
The Portal to Texas History
Bottle
Patent for a bottle. Illustrations included.
Date:
April 6, 1909
Creator:
Sanders, Richard L.
Object Type:
Patent
System:
The Portal to Texas History
Nut-Lock.
Patent for new qualities of nut-lock security, efficiency, and convenience, including illustrations.
Date:
April 24, 1906
Creator:
Payne, Lewis.
Object Type:
Patent
System:
The Portal to Texas History
Cotton-Condenser and Lint-Flue.
Patent for a cotton condenser and lint flue for use in cotton gins.
Date:
April 16, 1912
Creator:
Summerrow, Willie Price
Object Type:
Patent
System:
The Portal to Texas History
Cleaning Apparatus.
Patent for a vacuum for cleaning cotton gins that attaches to the pneumatic elevators generally found in cotton gins.
Date:
April 9, 1907
Creator:
Sadler, Arthur E.
Object Type:
Patent
System:
The Portal to Texas History
Cotton-Picker for Forming Mattress-Bats.
Patent for improvements in cotton-pickers for forming mattress-bats is to prepare the cotton to be light and elastic when the cotton is compressed into mattress-bats. Illustration is included.
Date:
April 29, 1902
Creator:
Morgan, John W.
Object Type:
Patent
System:
The Portal to Texas History
Air-Brake-Setting Appliance
Patent for an air brake apparatus for train cars which automatically activates when a train car is derailed. Illustrations included.
Date:
April 13, 1909
Creator:
Gale, Albert & Lilley, Doc M.
Object Type:
Patent
System:
The Portal to Texas History
Cloth Measuring and Cutting Device.
Patent for a new and improved cloth measuring device.
Date:
April 5, 1898
Creator:
Hood, William B.
Object Type:
Patent
System:
The Portal to Texas History
Churn.
Patent for a churn with a construction which will prevent "access of objectionable matter to the churn-body" (lines 14-15) including instructions and illustrations.
Date:
April 3, 1900
Creator:
Hargrove, Kincheon W.
Object Type:
Patent
System:
The Portal to Texas History
Combined Funnel and Dipper.
Patent for a ladle with an attached funnel for pouring the liquid out.
Date:
April 14, 1908
Creator:
Hanson, Henry Harrison
Object Type:
Patent
System:
The Portal to Texas History
Bit Attachment
Patent for "improved means for stopping runaway horses and to arrange for mounting the same upon a harness-bit so as to be under the control of the driver for convenient and effective operation when required" (lines 8-13).
Date:
April 30, 1901
Creator:
Riley, Peter
Object Type:
Patent
System:
The Portal to Texas History
Bit-Frame
Patent for a bit frame for holding ceiling cleats in place so that screws can be driven at each end. Illustrations included.
Date:
April 9, 1912
Creator:
Lagarde, Everette S. & Angenend, Peter A., Jr.
Object Type:
Patent
System:
The Portal to Texas History
Blab or Muzzle for Weaning Calves or Colts, &c.
Patent for weaning young animals and or prevent cows or such from sucking or milking themselves.
Date:
April 19, 1900
Creator:
Seay, John W.
Object Type:
Patent
System:
The Portal to Texas History
Antifriction-Bearing.
Patent for a new and useful improvements in anti-friction bearings.
Date:
April 5, 1898
Creator:
Hobron, Charles B.
Object Type:
Patent
System:
The Portal to Texas History
Closet
Patent for a dry closet. Illustrations included.
Date:
April 2, 1912
Creator:
Crow, Levi H.
Object Type:
Patent
System:
The Portal to Texas History
Boll-Weevil Extermination
Patent for a device to exterminate boll-weevils on cotton. Illustrations included.
Date:
April 12, 1910
Creator:
Hebert, Paul E.
Object Type:
Patent
System:
The Portal to Texas History
Bin-Measuring Apparatus
Patent for a bin measuring apparatus for weighing dry products for sale quickly and accurately.
Date:
April 20, 1909
Creator:
Duke, Joseph S.
Object Type:
Patent
System:
The Portal to Texas History