Results 71 to 80 of about 595 (178)

Supercritical‐flow structures in a Cretaceous submarine channel–lobe transition zone, Point Loma Formation, California

The Depositional Record, Volume 12, Issue 3, June 2026.
We document meter‐scale antidune and cyclic‐step deposits in channel–lobe transition zone (CLTZ) deposits of the Upper Cretaceous Point Loma Formation in San Diego, California. These results provide new insights into sediment transport dynamics in CLTZ environments, which are critical for understanding reservoir connectivity and heterogeneity in ...
Luthfi Saifudin, Zane Jobe, Arnoud Slootman, Mary Carr, Piret Plink‐Björklund   +4 more
wiley   +1 more source

Control Mechanism and Mechanical Design of the Adjustable Pulse Vibration Tool

Shiyou jixie, 2023
As the exploration and development progress toward deep and ultra-deep resources,formations that drilling engineering has to deal with are found with increasing complexity.Thus,it is necessary to research the formation applicability and drag reduction of
Su Qianrong, Yin Tianshi, Shi Huaizhong, Song Xianzhi, Cui Meng, He Wenhao, Zhang Nan   +6 more
doaj  

Relative importance of fluvial input and wave energy in controlling the timescale for distributary‐channel avulsion [PDF]

Geophysical Research Letters, 2005
Existing avulsion models are decoupled from nearshore processes. Here, I explore quantitatively how the interplay of wave energy with fluvial input of sediment and water controls the aggradation rate and avulsion timescale of a single distributary channel. My approach rigorously couples a diffusive, moving‐boundary theory of fluvial morphodynamics with
openaire   +1 more source

The Relationship Between the Fluid Classification of Glutenite Reservoir Hydrogenetic and Hydrocarbon Accumulation

Chemical Engineering Transactions, 2018
With the help of core and logging data, laboratory test data, by using classified evaluation of glutenite based on classification of sedimentation, subdividing the glutenite facies into tractive-current glutenite and gravity- current glutenite.
Sai Su, Weifeng Li, Sheng Li, Qingjie Deng   +3 more
doaj   +1 more source

The Relationship Analysis between Water Injection and Microfacies of SHA1 Reservoir of Liao He Basin, China

The Scientific World Journal, 2014
SHA1 is the representative reservoir in Liao He Basin. Through the introduction of curvature displayed on the gray scale, we determine the substructure and fractures. Geostatistical inversion method is used to help study the porosity of reservoir.
Qing Wang, Zhanguo Lu, Shiguang Guo, Chao Wang   +3 more
doaj   +1 more source

Investigation of Flow Characteristics in Rotating Distributary and Confluence Cavities

Energies
Power generation is an important part of air vehicle energy management when developing long-endurance and reusable hypersonic aircraft. In order to utilize an air turbine power generation system on board, fuel-based rotating cooling has been researched ...
Kuan Zheng, Huan Ma, Hongchuang Sun, Jiang Qin   +3 more
doaj   +1 more source

Geologic characteristics of deep water deposits and exploration discoveries in slope zones of fault lake basin: A case study of Paleogene Shahejie Formation in Banqiao-Qibei slope, Qikou sag, Bohai Bay Basin

Petroleum Exploration and Development, 2017
Based on seismic, logging, formation testing, core and lab test data, this study analyzed the sequence division, facies features of deep water deposits and modes, development of large-scale gravity flow, reservoir physical properties and their main ...
Xianzheng ZHAO, Xiugang PU, Lihong ZHOU, Zhannan SHI, Wenzhong HAN, Wei ZHANG   +5 more
doaj   +1 more source

Controls of Base-Level Cycles on the Sedimentary Architecture of Subaqueous Distributary Channels in a Lacustrine Delta: A Case Study From the Chang 8 Member, Ordos Basin

Geofluids
Base-level cycles serve as a crucial reference for the stratigraphic sedimentology. In lacustrine basins, high-frequency base-level changes contribute to significant diversity and complexity in sequences and sedimentary infilling.
Xin Wang, Meng Wang, Jianhui Wan, Ziqiang Wu, Di Wang, Qian Xiao, Luxing Dou, Canying Luo   +7 more
doaj   +1 more source

Sedimentary Characteristics and Depositional Model of a Shallow-Water Braided Delta in the Enping Formation, Lufeng X Oilfield, Pearl River Mouth Basin, China

Geofluids
Based on core observations, well-log data, and 3D seismic attributes, this study integrates lithofacies analysis, log-facies interpretation, and seismic-facies delineation to investigate the sedimentary characteristics and depositional architecture of ...
Xianghui Zhang, Qinghao Meng, Ye Gao, Rui Zhu, Jiajun Chen, Mengjiao Dou, Changmin Zhang   +6 more
doaj   +1 more source

Geology of the Lower Comoro Fluvio-Deltaic Accumulation: outcrop, resistivity, drilling data, and their implications for groundwater resources

Geology, Ecology, and Landscapes
The Lower Comoro Fluvio-deltaic Accumulation (LCFDA) is a major water source west of Dili built mostly by sediment fed by the Comoro River. Electric Sounding (ES) and Electric Resistivity Tomography (ERT) results were validated and combined with borehole
Marçal Ximenes, João A. M. S. Pratas, José M. M. De Azevedo, Fernando. P. O. O. Figueiredo, Pedro A. H. D. M. Dinis   +4 more
doaj   +1 more source