The Experts below are selected from a list of 24978 Experts worldwide ranked by ideXlab platform
Michelle E Portman - One of the best experts on this subject based on the ideXlab platform.
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regulatory capture by default offshore exploratory Drilling for Oil and gas
Social Science Research Network, 2015Co-Authors: Michelle E PortmanAbstract:This article examines a form of regulatory capture that occurs when significant ambiguity exists regarding the environmental protection standards for new types of activities in the marine environment. To begin with, there is little research that categorizes the typologies of regulatory capture despite the ubiquity of the phenomenon. After a discussion of theoretical approaches to regulatory capture, I describe the operative definition and theory appropriate to the situation related to authorization of Oil and natural gas production in Israel following the discovery of large offshore reserves in 2010. This approach, embodying several facets of existing typologies, is applied to decisions made authorizing construction of the Gabriella offshore exploratory Drilling platform. The analysis highlights the nature of capture in the absence of clear agency jurisdiction over new activities located in offshore environs organized as temporal and spatial “vacuums”. I conclude that comprehensive marine spatial planning would result in less capture and the development of more capture-resistant regulations.
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regulatory capture by default offshore Drilling for Oil and gas
Social Science Research Network, 2014Co-Authors: Michelle E PortmanAbstract:This article examines a form of regulatory capture that occurs when significant ambiguity exists regarding the environmental protection standards for new types of activities in the marine environment. To begin with, there is little research that categorizes the typologies of regulatory capture despite the ubiquity of the phenomenon. After a discussion of theoretical approaches to regulatory capture, I describe the operative definition and theory appropriate to the situation related to authorization of Oil and natural gas production in Israel following the discovery of large offshore reserves in 2010. This approach, embodying several facets of existing typologies, is applied to decisions made authorizing construction of the Gabriella offshore exploratory Drilling platform. The analysis highlights the nature of capture in the absence of clear agency jurisdiction over new activities located in offshore environs organized as temporal and spatial “vacuums”. I conclude that comprehensive marine spatial planning would result in less capture and the development of more capture-resistant regulations.
Kuanliang Zhu - One of the best experts on this subject based on the ideXlab platform.
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models tests of casing wear in Drilling for Oil gas
Journal of Natural Gas Science and Engineering, 2012Co-Authors: Lianzhong Sun, Deli Gao, Kuanliang ZhuAbstract:Abstract Casing wear is one of the critical problems in Drilling operations for Oil and gas field development. It is important to be able to predict the casing wear for offering practical advice on casing wear reduction. Currently the wear-efficiency model and the nonlinear casing wear model are used to predict casing wear. Two full-size casing wear tests were conducted in this study, involving the change in tool joint size. Comparisons of the test data with the casing wear models showed that the casing wear condition coefficient in the nonlinear wear model is slightly affected by the wear time and tool joint size change, which is different from the casing wear factor in the wear-efficiency model. Therefore, the nonlinear wear model should be used to predict the casing wear depth with higher accuracy in complex wells. In addition, it was found that the limestone additives (nonabrasive solids) did not affect the casing wear in the film forming & sealing & low invasion reservoir protection Drilling fluid. High concentrations of the nonabrasive solids did not further reduce casing wear after a protective layer was formed.
Jandyra Maria Guimaraes Fachel - One of the best experts on this subject based on the ideXlab platform.
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heavy metals contribution of non aqueous fluids used in offshore Oil Drilling
Fuel, 2005Co-Authors: Dirce Pozebon, Eder C Lima, Sandra M Maia, Jandyra Maria Guimaraes FachelAbstract:Abstract A monitoring program was performed to investigate heavy metal content alteration due to exploratory Drilling for Oil using non-aqueous fluids (NAFs) in Brazilian offshore, 900 m deep. Fourteen elements were monitored in 54 sites and it was verified that after Drilling activities the average Ba concentration was remarkably increased with respect to background level, even 1 year after the activity. A minor increase in Mn and a moderate increase in Al concentrations were verified. The Cd, Cr, Ni, As, Co, Cu, Pb, V, and Zn concentrations were at the background levels, ca. 1 year after the NAFs Drilling materials deposition on the seafloor. The Al, Ba, Cd, Cr, Cu, Ni and Zn mean concentrations were significantly different ( P −1 ).
Lianzhong Sun - One of the best experts on this subject based on the ideXlab platform.
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models tests of casing wear in Drilling for Oil gas
Journal of Natural Gas Science and Engineering, 2012Co-Authors: Lianzhong Sun, Deli Gao, Kuanliang ZhuAbstract:Abstract Casing wear is one of the critical problems in Drilling operations for Oil and gas field development. It is important to be able to predict the casing wear for offering practical advice on casing wear reduction. Currently the wear-efficiency model and the nonlinear casing wear model are used to predict casing wear. Two full-size casing wear tests were conducted in this study, involving the change in tool joint size. Comparisons of the test data with the casing wear models showed that the casing wear condition coefficient in the nonlinear wear model is slightly affected by the wear time and tool joint size change, which is different from the casing wear factor in the wear-efficiency model. Therefore, the nonlinear wear model should be used to predict the casing wear depth with higher accuracy in complex wells. In addition, it was found that the limestone additives (nonabrasive solids) did not affect the casing wear in the film forming & sealing & low invasion reservoir protection Drilling fluid. High concentrations of the nonabrasive solids did not further reduce casing wear after a protective layer was formed.
Dirce Pozebon - One of the best experts on this subject based on the ideXlab platform.
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heavy metals contribution of non aqueous fluids used in offshore Oil Drilling
Fuel, 2005Co-Authors: Dirce Pozebon, Eder C Lima, Sandra M Maia, Jandyra Maria Guimaraes FachelAbstract:Abstract A monitoring program was performed to investigate heavy metal content alteration due to exploratory Drilling for Oil using non-aqueous fluids (NAFs) in Brazilian offshore, 900 m deep. Fourteen elements were monitored in 54 sites and it was verified that after Drilling activities the average Ba concentration was remarkably increased with respect to background level, even 1 year after the activity. A minor increase in Mn and a moderate increase in Al concentrations were verified. The Cd, Cr, Ni, As, Co, Cu, Pb, V, and Zn concentrations were at the background levels, ca. 1 year after the NAFs Drilling materials deposition on the seafloor. The Al, Ba, Cd, Cr, Cu, Ni and Zn mean concentrations were significantly different ( P −1 ).
