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Petroleum [X]
LSU [X]
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2004 LSU Master's Thesis on Well Control. Full text access.
From Abstract: The recent push into deepwater is currently limited by high drilling costs resulting from conventional well designs. As a result, dual gradient drilling methods have been proposed. This research investigates riser gas-lift as a potential means to implement a dual gradient system. A primary concern is well control in a system containing so many different density fluids and different flow paths. The specific concerns addressed in this study were kick detection, cessation of formation feed-in, removal of kick fluids, and re-establishing hydrostatic control with a constant bottom hole pressure method.
Analysis of Diagnostic Testing of Sustained Casing Pressure in Wells, Rong Xu
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2002 Doctoral dissertation on Well Control. Full text access.
From the Abstract: Over 8,000 wells in the Gulf of Mexico exhibit sustained casing pressure (SCP). SCP is defined as “any measurable casing pressure that rebuilds after being bled down, attributable to cause(s) other than artificially applied pressures or temperature fluctuations in the well”. The Minerals Management Service (MMS) regulations consider SCP hazardous and, in principle, require its elimination. Presently, analysis of testing data is mostly qualitative and limited to arbitrary criteria. This work provides theory, mathematical models and software needed for qualitative analysis of SCP tests.
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2002 LSU doctoral dissertation on Blowout Control. Full text access.
From Abstract: The current methods for off - bottom control of blowouts involve pumping kill fluid into the well through an injection string. These are the dynamic kill and the momentum kill. A comprehensive study of these two concepts was performed. The review included an analytical analysis of the published design techniques for both of these methods. The study drew conclusions about the conceptual validity, applications, advantages, substantial shortcomings, and design problems for each method. In this work, an alternative method for controlling an off - bottom blowout was also developed.
CRAFT & HAWKINS DEPARTMENT OF PETROLEUM ENGINEERING
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LSU Department of Petroleum Engineering
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2002 LSU doctoral dissertation on Blowout Control. Full text access.
From Abstract: This study measured the liquid fallback during simulated blowout conditions. The purpose of the study was to establish a basis for developing a procedure for controlling blowouts that relies on the accumulation of liquid kill fluid injected while the well continues to flow.
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2003 LSU Master's Thesis on Well Control. Full text access.
From Abstract: This research investigates the feasibility of the dynamic lubrication method of well control as an alternative to conventional stepwise lubrication. The applicability of flooding phenomena to dynamic lubrication and its use in an optimization method to maximize pumping rates was also investigated.
Gulf Oil Spill Scientific Symposium - Consortium for Ocean Leadership
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The BP Deepwater Horizon oil spill is having significant ecological impacts on the Gulf of Mexico and coastal states
in the region. As the nation responds to this unprecedented spill, non-federal scientists can play a major role in the
efforts to understand and combat the impacts of this spill. The Consortium for Ocean Leadership is hosting this symposium to identify for the federal agencies the existing gaps in the scientific knowledge; opportunities
to fill those gaps; and priorities for short- and long-term research needs to understand the impact of the spill on the
Gulf ecosystems and human health. Ocean Leadership is working with NOAA and other government organizations as
partners of this event. June 2-3
Improved Bottomhole Pressure Control for Underbalanced Drilling Operations, by Carlos Perez-Tellez
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2002 LSU doctoral dissertaion on Well Control. Full text access.
From the Abstract: Maintaining underbalanced conditions from the beginning to the end of the drilling process is necessary to guarantee the success of jointed-pipe underbalanced drilling (UBD) operations by avoiding formation damage and potential hazardous drilling problems such as lost circulation and differential sticking. However, maintaining these conditions is an unmet challenge that continues motivating not only research but also technological developments. This research proposes an UBD flow control procedure, which represents an economical method for maintaining continuous underbalanced conditions and, therefore, to increase well productivity by preventing formation damage.
LSU Electronic Thesis and Dissertation Collection
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Online versions of various theses and dissertations from LSU graduate students.
LSU Resources - Gulf of Mexico Oil Spill
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LSU related resources and information about the oil spill, including expert contact information.
LSU School of Coast and Environment
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Our professors and researchers are providing objective, research based science related to the oil spill to public agencies, industry, and interested parties the world over. To date, our experts have given more than a hundred interviews regarding the catastrophe and the potential impact on the environment to international, national, and regional media.
Oil Spill Gulf of Mexico 2010 - NOLA.com
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Latest news, photos, videos from the BP Deepwater Horizon drilling disaster from NOLA.com
Removal of Sustained Casing Pressure Utilizing a Workover Rig, Kevin Louis Soter
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2003 LSU Master's thesis on Well Control. Full text access.
From the Abstract: This thesis will analyze the techniques used during the 1989 and 1990 workover programs as well as subsequent operations in 1991/1992. It will also present the techniques and results of the most recent 1999 workover program undertaken to alleviate the most persistent sustained casing pressure (SCP) in a mature Gulf of Mexico field. An extensive literature review is included to better illustrate the complexity of the issues involved and possible SCP mechanisms.
SCHOLR (Student Coalition to Help the Oil Leak Relief) @ LSU Facebook Group
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A group of student organizations on LSU's campus got together to determine what role our organizations, as well as the LSU student community, can play in providing relief efforts for the recent oil leak in the Gulf of Mexico. The purpose of this group is to provide accurate information regarding the series of events that led up to the leak, up to date information on the status of the leak and coastal Louisiana environment, inform students of volunteer opportunities, as well as provide a network for students to communicate and announce their efforts. (group's description)
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2007 LSU Master's thesis on Well Control. Full text access.
From the Abstract: Managed pressure drilling is an innovative technique to precisely manage wellbore pressure. It is particularly applicable for reducing the risk of a kick or lost returns when drilling with a narrow window between pore pressure and fracture pressure. The constant bottomhole pressure method of managed pressure drilling uses annular frictional pressure and choke pressure in addition to mud hydrostatic pressure to achieve precise wellbore pressure control. This project investigated alternative initial responses to kicks to determine which would be most effective and reliable under different well scenarios when applying the constant bottomhole pressure method of managed pressure drilling.
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2009 LSU Master's Thesis on Well Control. Full text access.
From Abstract: Managed Pressure Drilling (MPD) is an emerging drilling technology that utilizes mud weight, surface backpressure and annular frictional pressure loss (AFP) to precisely control the wellbore pressure. The goal of this project is to identify the most appropriate initial response and kick circulation method for the kicks that result from complications specific to MPD.
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2009 LSU Master's Thesis on Well Controll. Full text access.
From the Abstract: Managed pressure drilling (MPD) is an adaptation of conventional drilling that has been developed to manage and control subsurface pressures in the well in order to minimize specific drilling problems. The constant bottom hole pressure approach (CBHP) is a versatile method of MPD, where a closed annulus allows initial responses to kicks other than simply shutting in the well. The objective of this research was to identify and evaluate the best initial response to gas kicks taken during drilling as a basis for developing reliable well control procedures for CBHP operations.
WAVCIS, Coastal Studies Institue, LSU
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WAVCIS (wave current surge information system) is a monitoring system in the Gulf of Mexico comprised of meteorological, oceanographic instruments mounted on oil platforms. The data are received at LSU via satellite. A second component of the data involves oceanographic and meteorological data computed using high-powered computers at LSU's Coastal Studies Institute, School of the Coast and Environment. Information is obtained from offshore on a real-time basis and is available worldwide on the web. Oil spill responders, State and Federal agencies are utilizing the data extensively.
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Introductory textbook used in the Lousiana State University Department of Petroleum Engineering. Topics include: well pressure; causes, detection, and techniques for control of well kicks and blowouts, blowout preventer operation on surface and subsea.
YouTube - Oil Spill Impacts on Coastal Wetlands of the Mississippi River Delta
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LSU professor and wetland ecologist, Dr. Irving Mendelssohn, answers questions about possible oil spill effects on wetlands, mechanisms of damage to plants, and pros and cons of clean-up procedures. Mendelssohn has studied the coastal habitats along the Louisiana coast for over 30 years and has published more than 100 scientific articles on wetlands, 25 on oil spill impacts.
