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Correlations for drill-cuttings transport in directional-well drilling /Becker, Thomas Edward. January 1987 (has links)
Thesis (Ph.D.)--University of Tulsa, 1987. / Page xv lacking. Bibliography: leaves 150-154.
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Chemical and thermal effects on wellbore stability of shale formationsYu, Mengjiao. January 2002 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2002. / Vita. Includes bibliographical references. Available also from UMI Company.
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Interactions at the clay/polymer/water interfaceShewring, Nigel Ivor Edward January 1998 (has links)
The thesis investigates the behaviour of aqueous montmorillonite suspensions and also the interactions between montmorillonite as a free standing film and in highly dispersed aqueous suspension with water soluble polymers used as additives in water based drilling fluids. FTIR microscopy and FTIR ATR spectroscopy have been employed to study in-situ dehydration of fully dispersed aqueous montmorillonite suspensions. The IR spectrum of the dispersed bentonite shows significant differences from that of a dry bentonite powder, which have been attributed to the hydration of the exchangeable cation. Drying, or concentrated salt solution causes the differences to disappear and this is attributed to the exchangeable cation settling back to its ditrigonal cavity in the silicate sheet of the mineral under these conditions. The adsorption of various molecular weights of neutral polyacrylamide (PAM) onto montmorillonite has been studied using FTIR transmission, ATR spectroscopy and XRD. Shifts seen in the NH[2] stretching and bending bands have been interpreted as being due to H-bonding with the outer co-ordination sphere of exchangeable cations. KCl has shown to have some influence on this system. Another neutral polymer used extensively in water based drilling fluids is polyalkylglycol (PAG). The adsorption of two molecular weights of this polymer from aqueous solutions of various concentrations have been monitored both in the presence and absence of KCl. The physical form of the montmorillonite (either as a free standing film or as a dispersed suspension), the concentration of the polymer solution, the polymer molecular weight and the presence of KCl all have significant effects on the adsorption of polymer. The stabilisation of montmorillonite films by PAG and PAG/KCl solutions has been monitored by ATR spectroscopy, and the dehydration of these films by polymer has been monitored using FTIR spectroscopy and XRD. The interaction of PAG is thought to be via hydrogen bonding with the innermost co-ordination sphere of the exchangeable cations which thus presents a hydrophobic surface to solvent molecules, preventing the film from collapse. Since all water based drilling fluids are multi-component systems, techniques previously used have been employed to study the competitive adsorption of the polyalkylglycol and polyacrylamide components. Preferential adsorption of the PAG is seen in these systems either due to the mass transport effects (PAG is considerably smaller than PAM) or due to PAG removing all but the inner cation hydration sphere, and presenting a hydrophobic surface for the PAM, and therefore preventing its adsorption.
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Performance evaluation and selection of rotary drilling bitsFarrelly, M. January 1988 (has links)
No description available.
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Development of type curves for gas production from horizontal wells in conventional reservoirsAlmansour, Abdullah M. January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2009. / Title from document title page. Document formatted into pages; contains ix, 44 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 34-35).
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A parametric study of cutting transport in vertical and horizontal well using computational fluid dynamics (CFD)Ali, Md. Wazed, January 2002 (has links)
Thesis (M.S.)--West Virginia University, 2002. / Title from document title page. Document formatted into pages; contains x, 108 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 42-46).
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Finite element modeling of the stability of single wellbores and multilateral junctionsLópez Manríquez, Alberto. January 2003 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2003. / Vita. Includes bibliographical references. Available also from UMI Company.
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A preliminary report on the possibilities of the correlation of geochemical data relative to oil well watersBash, David Anderson. January 1927 (has links) (PDF)
Thesis (Professional Degree)--University of Missouri, School of Mines and Metallurgy, 1927. / The entire thesis text is included in file. Typescript. Illustrated by author. Title from title screen of thesis/dissertation PDF file (viewed October 12, 2009)
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The impact of stimulation treatment on EUR of Upper Devonian formations in the Appalachian BasinKrcek, Robert H. January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2010. / Title from document title page. Document formatted into pages; contains ix, 38 p. : col. ill., maps (some col.). Includes abstract. Includes bibliographical references (p. 36-37).
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Development of gas production type curves for horizontal wells in coalbed methane reservoirsNfonsam, Allen Ekahnzok. January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2006. / Title from document title page. Document formatted into pages; contains vi, 42 p. : ill. (some col.), map (part col.). Includes abstract. Includes bibliographical references (p. 40-41).
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