What is/are Bay Basin?
Bay Basin - Novelty: Euler deconvolution of gravity data was first time applied for subtle geothermal trap identification in Saurashtra and Cambay basins. [1] The hydropolitics over the Abbay basin has a long history of hydrologic hegemony by Egypt. [2] 3 t ha-1 yr-1), and the Abay basin (ca. [3] from the lower Eocene rocks of the Cambay Basin, western India, are found attached inside the anterior end of the hinge of large females. [4] In this article, the novelty of Artificial Neural Networks (ANN) model and GIS platform for the delineation of groundwater potential zones were compared in Fincha Catchment, Abay Basin, Ethiopia. [5] 4%) than the Cambay basin (0. [6] Two different methods are used to estimate continuous BI of Cambay Shale of Jambusar-Broach block, Cambay Basin, India, using advanced logs like ECS, Sonic Scanner (SS) and mineralogical analysis of core samples by XRD. [7] The use of GC×GC-TOFMS achieved exceptional chromatographic separation of higher plant triterpenoids, triaromatic steroids and methylated 2-methyl-2-(4,8,12-trimethyltridecyl) chromans (MTTC) in a complex aromatic fraction of a Cenozoic crude oil from the Tarapur field of the Cambay Basin. [8] The Cambay Shale Formation (CSF), the known source rock for conventional oil and gas, now becomes a key target for shale oil/gas exploration in the Cambay Basin. [9] Kabi-Gebro locality of Gundomeskel area is located within the Abay Basin at Dera District of North Shewa Zone in the Central highland of Ethiopia and it is about 320Km from Addis Ababa. [10] In terms of core observations, electrolog data and correlations, the macroscopic and microscopic heterogeneity of Cambay Shale Formation, Cambay Basin, India is characterized and discussed at different scales. [11] Key words: Smallholder farmers, adoption, Sustainable Land Management (SLM), multivariate Probit, Abay Basin. [12] Within the Acambay basin, Pleistocene to Holocene lake sediments record primary and secondary environmental effects of strong local earthquakes as a consequence of Quaternary activity of the major normal border faults. [13] A simple spreadsheets water and sediment load balance model was developed and used to determine the impacts of implementing watershed management interventions in the Abbay Basin in Ethiopia on soil loss, sediment loads, and sediment delivery ratio (SDR) in the Abbay River. [14]scanning electron microscopy
To analyze and evaluate fracture development characteristics in the lower sub-member of the third member of the Eocene Shahejie Formation (Es3L) and the upper sub-member of the fourth member of the Eocene Shahejie Formation (Es4U) in the Jiyang Depression, Bohai Bay Basin, core observations, thin sections, field emission scanning electron microscopy (FE-SEM), and well logging were performed. [1] In this paper, taking the shales from the Napo Formation, Oriente Basin, the Shahejie Formation, Zhanhua Sag, Bohai Bay Basin, and the Longmaxi and Wufeng Formations, Sichuan Basin as an example, the developmental characteristics of organic matter pore-fracture system were systematically studied using thin section, argon ion profiling scanning electron microscopy, X-ray diffraction, N2 adsorption and desorption, geochemistry experiments, and image processing technology. [2] : In this paper, the Oligocene reservoirs in the Nanpu Sag of the Bohai Bay Basin are studied by scanning electron microscopy (SEM), thin section observation, XRD, nuclear magnetic resonance (NMR), and mercury injection. [3] To better understand the pore structure and fractal character of lacustrine shales and their influence on liquid hydrocarbon occurrences, in this study, a total of 29 lacustrine oil-bearing shale samples collected from the Shahejie Formation in the Dongying Sag, Bohai Bay Basin, were investigated based on nitrogen adsorption (NGA) analysis combined with TOC, Rock-Eval pyrolysis, X-ray diffraction (XRD), and field emission-scanning electron microscopy (FE-SEM) experiments. [4] Using epoxy-impregnated thin sections, scanning electron microscopy (SEM), conventional core analyses of porosity and permeability, mercury intrusion porosimetry, and well logging, the characteristics of the petrology, physical properties, and pore structure we studied, as well as the relationship between pore structure and fluid saturation (maximum mercury intrusion saturation Smax and oil saturation So) of the near-oil source low-permeability turbidite sandstone reservoirs in the Es3 member of the Dongying Sag, Bohai Bay Basin, eastern China. [5]three dimensional seismic
Using recently acquired three-dimensional seismic data, we summarize typical patterns for seismic-based identification and stage analysis of sedimentary units in the Eocene succession of the southern slope-break belts of the Bozhong sag, Bohai Bay Basin, China. [1] In this study, the sedimentary characteristics and evolutionary patterns of braided and meandering fluvial deposits in the Neogene Guantao Formation of the Zhanhua Sag, Bohai Bay Basin were analyzed using cores, well logs and three-dimensional seismic data, and the quantitative information of the sand bodies in different fluvial deposits were characterized with dense well-net constraints. [2] We investigate the formation and deformation of transfer zones and their impact on sedimentation during multiphase rifting using a three-dimensional seismic dataset in the Baxian Sag, the onshore part of the Bohai Bay Basin, northern China. [3]shale oil exploration
The exploratory study of fabric facies classification and evaluation provides a new research idea for lacustrine shale oil exploration and effectively promotes breakthroughs in lacustrine shale oil exploration in Bohai Bay Basin. [1] New theories for shale oil and gas formation, based on data from 500 m continuous coring, systematic analysis of over ten thousand core samples, and logging data in the center of the lake basin in the Cangdong Sag (Bohai Bay Basin, China) were developed to determine the distribution of shale oil and provide a basis for shale oil exploration deployment. [2] The proposed methods were applied to a dataset collected from the Eocene-Oligocene Es3 and Es4 source rock units in four recent shale oil exploration wells in the Jiyang Super-Depression of the Bohai Bay Basin. [3]Bohai Bay Basin
Triaxial fracturing modeling experiments were carried out on whole diameter shale cores from different layers of Shahejie Formation in the Dongpu sag, Bohai Bay Basin to find out the vertical propagation shapes of hydraulic fractures in different reservoirs. [1] This method was applied to the Shahejie Formation of the Dongying Sag, Jiyang Depression, in Bohai Bay Basin, and the relationship between the free oil ratio (Rfree) and depth was established based on several core 2D NMR data. [2] In the Eocene of the Dongpu Depocentre (Bohai Bay Basin, China), three distinct delta types are identified: footwall-derived coarse-grained fan deltas and sand-rich deltas, and axial deltas that are dominated by siltstone and fine sandstone. [3] The chemistry of the zoned saddle dolomite-ankerite from the Bohai Bay Basin, China, changes in a cyclic way from core to rim, reflecting a dynamic system perturbated several times from thermodynamic steady-state. [4] The Beidagang buried-hill structural belt (BBHSB), located in the central part of the Qikou Sag, Bohai Bay Basin, hosts a multi-source and structurally complex petroleum system, in which the interpretation of oil-source relationships and the definition of hydrocarbon accumulation features are challenging due to the highly variable composition of oils and complex oil migration pathways. [5] Taking the Gaoshangpu-Liuzan geothermal field in the Nanpu sag of the Bohai Bay Basin as the research object, this paper discusses the geological conditions and potential of the geothermal resources of the Guantao Formation in the study area, and introduces the development practice of geothermal energy heating in Caofeidian. [6] Based on this method, one of the key exploratory wells, Qiang21 in the Raoyang Sag of Bohai Bay basin, was selected as a case study and was determined to be a sweet spot interval of the shale oil reservoir in the upper third member of the Shahejie Formation. [7] In the Futai carbonate oilfield of the Jiyang Depression, Bohai Bay Basin, oil enrichment is significantly related to fracture development during the oil production process. [8] This study deciphers the origin and distribution of multiphase carbonate cementations and assesses their implications for reservoir quality of the Eocene delta hydrocarbon sandstones in the Bohai Bay Basin. [9] In this study, the improved hydrocarbon generation potential evaluation method was used to quantify the characteristics of the source rocks of the first member of the Paleogene Shahejie Formation (Es1) in the Nanpu Sag, Bohai Bay Basin, NE China. [10] The Bohai Bay Basin is in the center of the destruction area in the eastern NCC. [11] To analyze and evaluate fracture development characteristics in the lower sub-member of the third member of the Eocene Shahejie Formation (Es3L) and the upper sub-member of the fourth member of the Eocene Shahejie Formation (Es4U) in the Jiyang Depression, Bohai Bay Basin, core observations, thin sections, field emission scanning electron microscopy (FE-SEM), and well logging were performed. [12] The Permian reservoirs of Wangguantun Buried Hill are deep buried reservoirs in the Bohai Bay Basin, with a depth of more than 4000 m. [13] Carbon, nitrogen, and sulfur present in organic isolates were studied and compared to reported data for several other shale formations (Duvernay, Bakken, Woodford and from the Bohai Bay Basin). [14] The exploratory study of fabric facies classification and evaluation provides a new research idea for lacustrine shale oil exploration and effectively promotes breakthroughs in lacustrine shale oil exploration in Bohai Bay Basin. [15] The lower and middle parts of the 3rd member of the Shahejie Formation (Es3x-Es3z) in the eastern Dongying Sag, southeast of the Bohai Bay Basin, China, are comprised of the turbidite sandstones and typical lacustrine source rocks that show good resource potential for lithologic and shale oil reservoirs. [16] The consistence of calculated and measured excess pressures in the basin with different excess pressure generation mechanisms such as in the cases in Tarim basin, Bohai Bay basin and Jiuquan basin showed that the pressure calculated by the equivalent depth method accounts for all excess pressure generation mechanisms such as disequilibrium compaction, tectonic compression, aquathermal pressuring, hydrocarbon generation and clay diagenesis. [17] Favorable conditions for the preservation of annual laminae are recorded during the Eocene in the Shahejie Formation in the Bohai Bay Basin (BBB), which is an ideal place for studying solar activity cycles. [18] Throughout the synrift stage of the Liaodong Bay sub-basin, offshore the Bohai Bay Basin in China, strike-slip motion within the Tan-Lu Fault Zone (TLFZ) greatly affected the local structural evolution. [19] ABSTRACT The Bonan sag in the Zhanhua Depression is a prolific oil-producing Cenozoic basin located in the Bohai Bay Basin of China. [20] The Eocene low-permeability sandstone reservoirs in the Dongying Depression, Bohai Bay Basin, China host a significant amount of oil reserves. [21] The Bohai Bay Basin is a crucial oil-bearing basin in eastern China, and the Paleogene Shahejie Formation is the most important source rock section in this area. [22] In this paper, the effects of different injection media on the development of shale oil reservoirs in Dongying formation, Qikou depression, Huanghua depression, and Bohai bay basin, were studied by means of imbibition and nitrogen flooding. [23] Being a part of the petroliferous Linqing depression, the Dongpu Sag is located in the SW part of the Bohai Bay Basin, eastern China, and is rich in oil and gas. [24] Core, well log and seismic data are used to investigate relationships between fan-delta facies architecture, basin margin morphology and sediment transportation into a deep-lacustrine environment of the Dongying Formation of Nanpu Sag, Bohai Bay Basin. [25] In this paper, a new parameter, the attenuating gradient of residual pressure (AGRP), which is defined as the variation in residual stratigraphic pressure over a unit distance in a certain direction, is introduced to characterize hydrocarbon migration forced by residual pressure and hydrocarbon accumulation influenced by fault seals in the Huimin Depression, Bohai Bay Basin. [26] The identified sedimentary units are developed in the Paleogene succession on the northern slope of the Bonan uplift, Bohai Bay Basin, China, and are characterized by either vermicular-like chaotic progradational reflections or coupled vermicular-like and progradational seismic reflections in the dip direction and channel-shaped bidirectional onlap reflections along strike directions. [27] A modeling workflow was designed to reproduce the distribution of heterogeneities at different scales in the Miocene Minghuazhen Formation of the Yangerzhuang Oilfield in the Bohai Bay Basin. [28] Poroperm analysis, mercury injection capillary pressure (MICP), and nuclear magnetic resonance (NMR) measurements were performed to delineate the pore structures and fractal behaviors of the Eocene low-permeability sandstones in the Dongying Depression, Bohai Bay Basin, China. [29] Significant developments have been observed in recent years, in the field of deep part exploration in the Bozhong Sag, Bohai Bay Basin in eastern China. [30] Bohai Bay Basin is a major continental hydrocarbon province in NE China, but nitrogen isotopic signatures of this lacustrine system (connected with the open ocean occasionally) have barely been investigated. [31] In this paper, taking the shales from the Napo Formation, Oriente Basin, the Shahejie Formation, Zhanhua Sag, Bohai Bay Basin, and the Longmaxi and Wufeng Formations, Sichuan Basin as an example, the developmental characteristics of organic matter pore-fracture system were systematically studied using thin section, argon ion profiling scanning electron microscopy, X-ray diffraction, N2 adsorption and desorption, geochemistry experiments, and image processing technology. [32] The Data bank for this research was attained from available sources of Shahejie formation from Bohai bay basin located in China which consists of geochemical and well logging information. [33] Laizhouwan sag in Bohai Bay basin is a fault basin controlled by extensional fault depression and strike slip pull apart, which is an important oil and gas exploration area in Bohai Bay. [34] Many large shallow-water delta sedimentary systems were found in the Bohai Bay Basin in the Late Miocene. [35] In this study, basic tests of petrophysical properties and spontaneous imbibition experiments are conducted on 11 tight sandstone cores sampled from Dongying Sag of Bohai Bay Basin. [36] Based on outcrop, well logging, and mud logging data, this study investigates the sedimentary environment, the distribution patterns and the depositional environment of the Late Paleozoic coal-measure source rocks in the Bohai Bay Basin region. [37] The Huanghua Depression is a complex secondary tectonic unit in the Bohai Bay Basin of eastern China. [38] Oils reservoired in the third (Es3) and fourth (Es4) members of the lacustrine Shahejie Formation from the Dongying Depression, Bohai Bay Basin, eastern China have been analyzed by gas chromatography–mass spectrometry. [39] In this paper, the Milankovitch cycle recorded from the study interval and the environment response characteristics were studied, with the lacustrine shale in the lower third submember of the Paleogene Shahejie Formation (lower Es3 submember) in Well Fanye-1 of the Dongying sag, Bohai Bay Basin, as the object of study, by such technical means as thin section identification and X-ray whole rock diffraction, based on such data as logging data and geochemistry, combining the methods of spectral analysis, wavelet transform, and modulus extremum. [40] We have used multivariate statistical methods to classify the geochemical characteristics of the formation water for the Cenozoic Formation of Bonan Sag in the Bohai Bay Basin. [41] 3 structural belt of the Nanpu Sag, Bohai Bay Basin. [42] The Bohai Bay basin, mainly formed in the Cenozoic, is an important storehouse of groundwater in the North China Plain. [43] : In this paper, the Oligocene reservoirs in the Nanpu Sag of the Bohai Bay Basin are studied by scanning electron microscopy (SEM), thin section observation, XRD, nuclear magnetic resonance (NMR), and mercury injection. [44] The Jizhong depression in the western Bohai Bay Basin has a high thermal state. [45] Taking the Dongpu Depression in the Bohai Bay Basin as an example， this study conducted the TOC， FE-SEM， energy spectrum， major， trace， and rare earth elements analyses on the Es3 （Third member of the Paleogene Shahejie Fm） Shales， exploring the correlations among the organic matter richness with paleoclimate， paleo-salinity， sedimentation rate， paleo-productivity， and redox condition. [46] Boreholes from the Qinhuangdao-A (QHD-A) block in central Bohai Bay Basin sampled lacustrine mixed sediments during the Eocene period (32–38 Ma), providing an opportunity to facilitate this aspect of research. [47] The proposed method was applied to a subsurface dataset (including a 3D seismic dataset and 255 wells) of the Chengdao oilfield, in the Bohai Bay Basin (China). [48] The fine-grained rocks in the Paleogene Shahejie Formation in Nanpu Sag, Huanghua Depression, Bohai Bay Basin, are extremely important source rocks. [49] Although various coaly source rocks widely developed in the Carboniferous-Permian (C-P) of the Bohai Bay Basin, their geochemical characteristics and hydrocarbon generation potential are poorly understood. [50]Cardigan Bay Basin
The studied interval is part of the astronomically constrained Upper Pliensbachian of the Mochras borehole, Cardigan Bay Basin. [1] Clay mineral and stable isotope (C, O) data are reported from the upper Sinemurian (Lower Jurassic) of the Cardigan Bay Basin (Llanbedr–Mochras Farm borehole, northwestern Wales) and the Paris Basin (Montcornet borehole, northern France) to highlight the prevailing environmental and climatic conditions. [2] This on 2 cores located Mochras in the Cardigan bay basin (Mochras borehole) and the Paris Basin Montcornet borehole). [3] Potentially significant differences between Cleveland and Cardigan Bay Basin are observed in the Pliensbachian and Toarcian fossils. [4] Detailed assessment of high-resolution elemental and isotopic geochemical datasets collected from the marl–limestone alternations cropping out at La Cerradura (Subbetic domain of the Betic Cordillera, Spain) and chrono- and chemostratigraphic correlation with the reference Mochras borehole (Cardigan Bay Basin, UK) unveiled valuable new insights into understanding of late Pliensbachian–early Toarcian palaeoenvironmental dynamics in a key geographical area between the northern European seaway and the Tethys Ocean. [5] The uppermost Pliensbachian-Lower Toarcian sediments recovered from Llanbedr (Mochras Farm) Borehole (North Wales, UK) were deposited in the Cardigan Bay Basin and mainly consist of alternating marls and marly limestones. [6]