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8
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47
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Tracer Developments: Results of Experimental Studies
Tracers can be used to monitor the movement of groundwaters and geothermal fluids and they can be used as a reference to quantify changes in fluid chemistry as a result of injection. Despite their potential importance to the geothermal operator, very few tracers are presently available and of those that are, little is known about their stability or behavior at the elevated temperatures that typify resources capable of electric power generation. During the past two years the University of Utah Research Institute has been involved in tracer research and testing, largely through the DOE Injection Research Program. The purpose of this paper is to summarize the results of these laboratory and field investigations.
Date:
January 21, 1986
Creator:
Adams, M. C.; Ahn, J. H.; Bentley, H.; Moore, J. N. & Veggeberg, S.
Object Type:
Article
System:
The UNT Digital Library
The Paducah Post (Paducah, Tex.), Vol. 80, No. 26, Ed. 1 Thursday, August 21, 1986
Weekly newspaper from Paducah, Texas that includes local, state, and national news along with advertising.
Date:
August 21, 1986
Creator:
Adams, Patty
Object Type:
Newspaper
System:
The Portal to Texas History
Geothermal Two-Phase Wellbore Flow: Pressure Drop Correlations and Flow Pattern Transitions
In this paper we present some basic concepts of two-phase flow and review the Orkiszewski (1967) correlations which have been suggested by various investigators to perform well for geothermal wellbore flow situations. We also present a flow regime map based on the transition criteria used by Orkiszewski (1967) and show that most geothermal wells flow under slug flow regime. We have rearranged bubble- to slug-flow transition criterion used by Orkiszewski (1967) to show that the transition depends on the dimensionless pipe diameter number in addition to dimensionless liquid and gas velocity numbers. Our aim is also to identify what research may lead to improvements in two-phase pressure drop calculations for geothermal wellbore flow.
Date:
January 21, 1986
Creator:
Ambastha, A. K. & Gudmundsson, J. S.
Object Type:
Article
System:
The UNT Digital Library
Pressure Profiles in Two-Phase Geothermal Wells: Comparison of Field Data and Model Calculations
Increased confidence in the predictive power of two-phase correlations is a vital part of wellbore deliverability and deposition studies for geothermal wells. Previously, the Orkiszewski (1967) set of correlations has been recommended by many investigators to analyze geothermal wellbore performance. In this study, we use measured flowing pressure profile data from ten geothermal wells around the world, covering a wide range of flowrate, fluid enthalpy, wellhead pressure and well depth. We compare measured and calculated pressure profiles using the Orkiszewski (1967) correlations.
Date:
January 21, 1986
Creator:
Ambastha, A. K. & Gudmundsson, J. S.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0261C.0512]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Kevin Grant, 13, and Bob Hoover give thumbs-up OK from the cockpit."
Date:
June 21, 1986
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0264.0252]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "University of Oklahoma president Frank E. Horton answer questions from Monroe Elementary School pupils."
Date:
March 21, 1986
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0323.0253]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Daredevil Johnny Kazian, left photo, crashes through a wall of fire at the air show."
Date:
June 21, 1986
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0398.0652]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mike Wheatley, left, Jay Courtright, Dylan Romo, Mike Morrison and Richard Sauer pose."
Date:
March 21, 1986
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0971.0651]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Joyce Thompson of the Oklahoma City Police Department talks to children about survival skills during a session of Trinity Presbyterian Church's Summer School being held at the church, 2301 NE 23."
Date:
June 21, 1986
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0974A.0647]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Jo Bacon serves a special-order sundae."
Date:
March 21, 1986
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Reservoir Behaviour in a Stimulated Hot Dry Rock System
Research into the stimulation of hot dry rock (HDR) systems in crystalline rock has been underway in Cornwall, England for several years. Two deviated wells were drilled to a depth of 2100 m in 1981 with an interwell separation of 300 m. These wells were connected by massive hydraulic injections using water, but the interconnection was insufficient to permit long term circulation without excessive water losses. In 1985 a third well was drilled to a depth of 2600 m in a direction chosen from the analysis of the reservoir behavior during the previous circulation. A massive stimulation (200 l/s, 75 bbl/min) of gel was used to connect the wells and circulation was re-established in August 1985. Reservoir models have been developed from hydraulic analyses, thermal behavior, microseismic mapping, tracer dispersion and chemical modeling. The system behaves like an interconnected network of flow paths with a few dominant routes acting as flow conduits. The storage is associated with pressure dependent joint compliance, but it is isolated from the dominant flow paths. No unique physical model has yet been derived but the various techniques have been used to establish constraints on the geometry and nature of the heat transfer regions. The experiments …
Date:
January 21, 1986
Creator:
Batchelor, Anthony S.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0071.0662]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The pickoff throw got away from Nashville first baseman Gene Roof and Oklahoma City's Bob Brower took advantage by advancing safely to second base in the Sounds' 10-8 victory over the 89ers Wednesday night at All Sports Stadium."
Date:
May 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0119A.0082]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Discussing a drawing are Jeane and Hugh Byler and Don Finch, from left."
Date:
September 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0151.0470]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Admiring art are, from left, Larry Cassil Jr., Jane Davis, Larry Cassil, Shirley Cassil and Chebon Dacon."
Date:
August 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0166.0241]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Brooks Douglass and Dana McClendon . . .1986"
Date:
November 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0231.0354]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Talking at the reception are Carolyn Grundy, Mildred Mahon and George Grundy, from left."
Date:
September 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0329.0270]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "OSU's Sara Killeen coaxes a putt toward the cup on the 18th green Sunday."
Date:
September 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0329.0271]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Sara Killeen, of Oklahoma state gets a congratulatory hug following her victory in the women's All-College golf tournament Sunday."
Date:
September 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0352.0533]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Karen Klinka is a medical writer in the Public Information Office at the University of Oklahoma Health Sciences Center."
Date:
November 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0388.0139]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Diane and Doug McClure, left, talk with Cynthia and Jack Cope."
Date:
August 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0395.0689]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "At the buffet are Alex Riddle, left, and OMA director David Mickenberg."
Date:
September 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0408B.0200]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Edmond police Lt. Ron Cavin hefts a .45-caliber pistol, one of two such weapons used in the slayings Wednesday morning of 14 Edmond post office employees."
Date:
August 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0935.0485]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
August 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0938.0257]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Despite a rainy late summer, construction of the $1.4 million Anheuser-Busch distribution center is on schedule for a Dec. 15 completion."
Date:
October 21, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History