The Experts below are selected from a list of 13437 Experts worldwide ranked by ideXlab platform
Ning Xu - One of the best experts on this subject based on the ideXlab platform.
-
Seismic characteristics of a reef carbonate reservoir and implications for Hydrocarbon Exploration in deepwater of the Qiongdongnan Basin, northern South China Sea
Marine and Petroleum Geology, 2009Co-Authors: Shiguo Wu, Shengqiang Yuan, Gongcheng Zhang, Lijun Mi, Yubo Ma, Ning XuAbstract:Our analysis of approximately 40,000 km of multichannel 2-D seismic data, reef oil-field seismic data, and data from several boreholes led to the identification of two areas of reef carbonate reservoirs in deepwater areas (water depth ≥ 500 m) of the Qiongdongnan Basin (QDNB), northern South China Sea. High-resolution sequence stratigraphic analysis revealed that the transgressive and highstand system tracts of the mid-Miocene Meishan Formation in the Beijiao and Ledong-Lingshui Depressions developed reef carbonates. The seismic features of the reef carbonates in these two areas include chaotic bedding, intermittent internal reflections, chaotic or blank reflections, mounded reflections, and apparent amplitude anomalies, similar to the seismic characteristics of the LH11-1 reef reservoir in the Dongsha Uplift and Island Reef of the Salawati Basin, Indonesia, which house large oil fields. The impedance values of reefs in the Beijiao and Ledong-Lingshui Depressions are 8000-9000 g/cc × m/s. Impedance sections reveal that the impedance of the LH11-1 reef reservoir in the northern South China Sea is 8000-10000 g/cc × m/s, whereas that of pure limestone in BD23-1-1 is >10000 g/cc × m/s. The mid-Miocene paleogeography of the Beijiao Depression was dominated by offshore and neritic environments, with only part of the southern Beijiao uplift emergent at that time. The input of terrigenous sediments was relatively minor in this area, meaning that terrigenous source areas were insignificant in terms of the Beijiao Depression; reef carbonates were probably widely distributed throughout the depression, as with the Ledong-Lingshui Depression. The combined geological and geophysical data indicate that shelf margin atolls were well developed in the Beijiao Depression, as in the Ledong-Lingshui Depression where small-scale patch or pinnacle reefs developed. These reef carbonates are promising reservoirs, representing important targets for deepwater Hydrocarbon Exploration. © 2008 Elsevier Ltd. All rights reserved.
Renaud Bouroullec - One of the best experts on this subject based on the ideXlab platform.
-
New insights into salt tectonics in the northern Dutch offshore: a framework for Hydrocarbon Exploration
Geological Society London Special Publications, 2018Co-Authors: Matthijs Van Winden, Jan De Jager, B. Jaarsma, Renaud BouroullecAbstract:The northern Dutch offshore is an area that has seen less Hydrocarbon Exploration activity than other areas of The Netherlands. Acquisition of a new regional 3D seismic dataset allowed further testing and re-evaluation of established geological concepts in this area. It is recognized that the presence and movement of Upper Permian Zechstein evaporites had a major impact on depositional patterns in Mesozoic sediments, structural development and Hydrocarbon migration. As such, this study looks specifically at the role of salt tectonics in tectonosedimentary development. To assess this salt tectonic evolution within its structural context, a restoration of the Step Graben and Dutch Central Graben was performed. It follows that depositional patterns are closely linked to the nature of salt structure movement and the timing of regional tectonism. For example, during Late Triassic rifting, salt pillows developed and sedimentation focused away from salt structures into depocentres along regional fault trends. Restoration results show that this interplay between salt movement and tectonism is needed to accommodate the sedimentation patterns associated with the formation of the Step Graben and Central Graben during the Triassic and Jurassic, and later during Late Cretaceous and Cenozoic inversion tectonics. © 2018 The Author(s).
Shiguo Wu - One of the best experts on this subject based on the ideXlab platform.
-
Seismic characteristics of a reef carbonate reservoir and implications for Hydrocarbon Exploration in deepwater of the Qiongdongnan Basin, northern South China Sea
Marine and Petroleum Geology, 2009Co-Authors: Shiguo Wu, Shengqiang Yuan, Gongcheng Zhang, Lijun Mi, Yubo Ma, Ning XuAbstract:Our analysis of approximately 40,000 km of multichannel 2-D seismic data, reef oil-field seismic data, and data from several boreholes led to the identification of two areas of reef carbonate reservoirs in deepwater areas (water depth ≥ 500 m) of the Qiongdongnan Basin (QDNB), northern South China Sea. High-resolution sequence stratigraphic analysis revealed that the transgressive and highstand system tracts of the mid-Miocene Meishan Formation in the Beijiao and Ledong-Lingshui Depressions developed reef carbonates. The seismic features of the reef carbonates in these two areas include chaotic bedding, intermittent internal reflections, chaotic or blank reflections, mounded reflections, and apparent amplitude anomalies, similar to the seismic characteristics of the LH11-1 reef reservoir in the Dongsha Uplift and Island Reef of the Salawati Basin, Indonesia, which house large oil fields. The impedance values of reefs in the Beijiao and Ledong-Lingshui Depressions are 8000-9000 g/cc × m/s. Impedance sections reveal that the impedance of the LH11-1 reef reservoir in the northern South China Sea is 8000-10000 g/cc × m/s, whereas that of pure limestone in BD23-1-1 is >10000 g/cc × m/s. The mid-Miocene paleogeography of the Beijiao Depression was dominated by offshore and neritic environments, with only part of the southern Beijiao uplift emergent at that time. The input of terrigenous sediments was relatively minor in this area, meaning that terrigenous source areas were insignificant in terms of the Beijiao Depression; reef carbonates were probably widely distributed throughout the depression, as with the Ledong-Lingshui Depression. The combined geological and geophysical data indicate that shelf margin atolls were well developed in the Beijiao Depression, as in the Ledong-Lingshui Depression where small-scale patch or pinnacle reefs developed. These reef carbonates are promising reservoirs, representing important targets for deepwater Hydrocarbon Exploration. © 2008 Elsevier Ltd. All rights reserved.
Anthony I Okoh - One of the best experts on this subject based on the ideXlab platform.
-
biodegradation alternative in the cleanup of petroleum Hydrocarbon pollutants
Biotechnology and Molecular Biology Reviews, 2006Co-Authors: Anthony I OkohAbstract:Extensive petroleum Hydrocarbon Exploration activities often result in the pollution of the environment, which could lead to disastrous consequences for the biotic and abiotic components of the ecosystem if not restored. Remediation of petroleum-contaminated system could be achieved by either physicochemical or biological methods. However, the attendant negative consequences of the physicochemical approach are currently directing greater attention to the exploitation of the biological alternatives. This paper provides a review of the menace of petroleum Hydrocarbon pollution and its biodegradation in the environment with the view of understanding the biodegradation processes for better exploitation in bioremediation challenges. Key words: Petroleum Hydrocarbon, pollution, environment, and biodegradation.
A Stefatos - One of the best experts on this subject based on the ideXlab platform.
-
csem technology as a value driver for Hydrocarbon Exploration
Marine and Petroleum Geology, 2010Co-Authors: Jonny Hesthammer, A Stefatos, Mikhail Boulaenko, Alexander Vereshagin, Peter Gelting, Torolf Wedberg, Gregor MaxwellAbstract:Abstract The use of the controlled source electromagnetic (CSEM) method as a risk reduction tool in marine Hydrocarbon Exploration is gaining increased acceptance in the oil industry. This is related to the ability to map resistivity contrasts in the sub-surface and thus aid the detection of Hydrocarbons which are typically more resistive than surrounding rocks. Whereas acoustic (seismic) energy allows for mapping sub-surface structures that may contain Hydrocarbons, electromagnetic (EM) energy can often say something about the fluids contained within the structures. Numerous successful CSEM case stories have been published over the past several years. However, there are also quite a few stories about “failure”-cases, although not well documented in the literature. Such “failure”-cases may reflect the lack of understanding of the CSEM technology and how CSEM data can act as a value driver. In order to understand this, it is necessary to handle uncertainties and decisions associated with the technology, These include geological uncertainties, noise models, survey designs, forward modelling parameters, inversion/migration parameters and pre-processing of real data. A proper handling of these uncertainties and decisions will aid in defining and constraining the chance of geologic success and geologic-success-case net present value for prospects prior to drilling wells. As such, the CSEM technology has a significant potential to increase Exploration efficiency, if applied correctly.
-
controlled source electromagnetic technology and Hydrocarbon Exploration efficiency
First Break, 2010Co-Authors: Stein Fanavoll, Jonny Hesthammer, Jens Danielsen, A StefatosAbstract:Stein Fanavoll, Jonny Hesthammer, Jens Danielsen and Aris Stefatos provide the most detailed analysis to date on the effectiveness of controlled source electromagnetics as a tool for the detection of commercial volumes of Hydrocarbons.