Downhole logging as a paeoceanographic tool on ocean drilling program leg 138: Interface between high-resolution stratigraphy and regional syntheses [PDF]
, 1992 On Ocean Drilling Program (ODP) Leg 138, standard shipboard procedures were modified to allow for the real-time monitoring of several laboratory core-scanning systems that provide centimeter-scale measurements of saturated bulk density, magnetic ...
Bloomer, Stephen F. +6 more
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Research on optimized mud wall protection tchnology for rotary drilling in deep soft soil formations [PDF]
E3S Web of ConferencesBorehole stability is a major technical challenge during rotary drilling of cast-in-place piles in deep soft soil layers , particularly those characterized by high water content, high compressibility, low shear strength, and pronounced flow plasticity ...
Zhu Hongyun, Zhao Qingkui, Zhou Lianying
doaj +1 more source
Reservoir-scale transdimensional fracture network inversion [PDF]
, 2019 The Waiwera aquifer hosts a structurally complex geothermal groundwater system, where a localized thermal anomaly feeds the thermal reservoir. The temperature anomaly is formed by the mixing of waters from three different sources: fresh cold groundwater,
Kühn, Michael +2 more
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Comparison of Gaussian process modeling software [PDF]
, 2016 Gaussian process fitting, or kriging, is often used to create a model from a set of data. Many available software packages do this, but we show that very different results can be obtained from different packages even when using the same data and model ...
Ankenman, Bruce E. +2 more
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Study of the plasma flow interaction with the borehole surface in the process of its thermal reaming [PDF]
, 2018 Purpose. Study of the plasma flow interaction with the borehole surface in the process of its thermal reaming for determination of transient temperature distribution along the borehole surface and the average coefficient of heat transfer from the plasma ...
Horiachkin, V +7 more
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Research on borehole stability of shale based on seepage-stress-damage coupling model
Fracture and Structural Integrity, 2013 In oil drilling, one of the most complicated problems is borehole stability of shale. Based on the theory of continuum damage mechanics, a modified Mohr-Coulomb failure criterion according to plastic damage evolution and the seepage-stress coupling is ...
Xiaofeng Ran, Yuezhi Wang, Shanpo Jia
doaj
Measurement of representative landfill gas migration samples at landfill perimeters: a case study [PDF]
, 2009 This paper describes the development of a fully integrated autonomous system based on existing infrared sensing technology capable of monitoring landfill gas migration (specifically carbon dioxide and methane) at landfill sites.
Beirne, Stephen +3 more
core
Meitan xuebao, 2023 The pressure-relief gas drainage in longwall mining goaf is an important part of the simultaneous extraction of coal and gas in the green mining technology system. The horizontal-directional long boreholes arranged in overlying strata for pressure-relief
Mingjie GUO +5 more
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Tahiti sea level : the last deglacial sea level rise in the South Pacific [PDF]
, 2005 Integrated Ocean Drilling Program (IODP) Expedition 310 to the reef terraces around Tahiti, French Polynesia, was the second expedition to utilize a mission-specific platform (MSP) and was conducted by the European Consortium for Ocean Research Drilling (
Camoin, Gilbert F. +2 more
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Geofluids, 2020 Deep-sea hydrate has great commercial exploitation value as a new type of energy, due to huge reserves, wide distribution, cleanliness, and lack of pollution.
Wenrong Feng +3 more
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