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Electron transport in coupled double quantum wells and wiresHarff, Nathan E. 04 March 1997 (has links)
Graduation date: 1997
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Acid Placement in Acid Jetting Treatments in Long Horizontal WellsSasongko, Hari 2012 May 1900 (has links)
In the Middle East, extended reach horizontal wells (on the order of 25,000 feet of horizontal displacement) are commonly acid stimulated by jetting acid out of drill pipe. The acid is jetted onto the face of the openhole wellbore as the drill pipe is withdrawn from the well. The jetting action helps to remove the drilling fluid filter cake and promote the acid to penetrate into the formation and form wormholes to stimulate the well. However, with very long sections of wellbore open to flow, the acid placement and subsequent wormhole distribution and penetration depths are uncertain.
This study has modeled the acid jetting process using a comprehensive model of acid placement and wormhole propagation in a horizontal well. It is presumed that the acid jetting tool removes the drilling mud filter cake, so that no filter cake exists between the end of the drill pipe and the toe of the well. Correspondingly, the model also assumes that there is an intact, low-permeability filter cake on the borehole wall between the end of the drill pipe and the heel of the well. The drill pipe is modeled as being withdrawn from the well during the acid jetting treatment, as is done in practice.
The acidizing simulator predicts the distribution of acid and the depths of wormholes formed as functions of time and position during the acid jetting treatment. The model shows that the acid jetting process as typically applied in these wells preferentially stimulates the toe region of the horizontal well. Comparisons of the simulation predictions with published data for acid jetting treatments in such wells showed good general agreement. Based on the simulation study, this study presents recommendations for improved acid jetting treatment procedures to improve the distribution of acid injected into the formation.
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Effect of well configurations on productivity index of gas well producing from shaleAbdullaay, Emaadeldein. January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2009. / Title from document title page. Document formatted into pages; contains xiii, 99 p. : ill. (some col.), col. map. Includes abstract. Includes bibliographical references (p. 95-99).
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Experimental measurements of condensate blocking and treatements in low and high permeability coresAl-Anazi, Hamoud Ali. Sharma, Mukul M., Pope, G. A. January 2003 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2003. / Supervisors: Mukul M. Sharma and Gary A. Pope. Vita. Includes bibliographical references. Available also from UMI Company.
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Modeling the effects of geochemistry on well impairment /Araque-Martinez, Aura N. January 2001 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2001. / Vita. Includes bibliographical references (leaves 331-337). Available also in a digital version from Dissertation Abstracts.
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Demonstration of a near and mid-infrared detector using multiple step quantum wells /Touse, Michael P. January 2003 (has links) (PDF)
Thesis (M.S. in Physics)--Naval Postgraduate School, September 2003. / Thesis advisor(s): Gamani Karunasiri, James Luscombe. Includes bibliographical references (p. 59-60). Also available online.
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Gallium arsenide based MBE-grown quantum structures for near infrared wavelength applicationsGovindaraju, Sridhar. January 2002 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2002. / Vita. Includes bibliographical references. Available also from UMI Company.
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Experimental measurements of condensate blocking and treatements in low and high permeability coresAl-Anazi, Hamoud Ali 28 August 2008 (has links)
Not available / text
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The impact of shale properties on wellbore stabilityZhang, Jianguo 28 August 2008 (has links)
Not available / text
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Settling and hydrodynamic retardation of proppants in hydraulic fracturesLiu, Yajun 28 August 2008 (has links)
Not available / text
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