Results 51 to 60 of about 144 (128)

Type and distribution of Mid-Permian Maokou Formation karst reservoirs in southern Sichuan Basin, SW China

Petroleum Exploration and Development, 2019
Based on the analysis of the responses of conventional logs such as natural gamma (GR), density (DEN), acoustic interval transit time (AC), compensated neutron (CNL), dual lateral resistivity (Rlld, Rlls), and caliper log (CAL), combined with drilling ...
Shipeng HUANG, Qingchun JIANG, Qingfu FENG, Ya WU, Weihua LU, Wang SU, Xiaoyue CHEN, Mengyi REN, Hui PENG   +8 more
doaj   +1 more source

Infrared Thermographic Assessment of Fatigue Behavior in Bolted Composite Joints

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This study investigates the temperature evolution of bolted thick glass fiber reinforced polymer composites during fatigue testing. Three different adherend thicknesses (8, 10, and 12 mm) and three different bolt tightening torques (30, 40, and 50 N·$$ \cdotp $$m were considered to evaluate the effects of adherend thickness and bolt tightening
Tolga Topkaya, Hüsna Topkaya, Murat Yavuz Solmaz   +2 more
wiley   +1 more source

Strength Analysis of Sound Insulation Body in Ring Groove for Acoustic Logging While Drilling

Shiyou jixie, 2017
The sound insulation body in ring groove is a kind of sound insulation body that is commonly used in the acoustic logging while drilling. The numerical simulation method has been used to study the maximum equivalent stress area of the sound insulation ...
Wu Neng, Zhao Honglin, Liu Xu, Li Yufang
doaj  

Machine learning-based real-time lithology prediction from drilling acoustic signals

Unconventional Resources
Accurate lithology classification is essential for optimizing drilling operations and improving reservoir understanding. Conventional well logging methods often suffer from delays, limiting real-time decision-making.
Eric Mensah Amarfio, Eric Thompson Brantson, Frederick Asamoah, Joel Adu-Awuku, Takyi Botwe, Bright Ntebu Laliri, Eugene Jerry Adjei   +6 more
doaj   +1 more source

Seismic studies of the unevenness of open fracturing and inhomogeneity of the fluid saturation in the geological environment for optimal development of oil and gas fields

Georesursy, 2018
The distribution of fracturing and the type of fluid saturation in the geological environment, along with its structure, is the most important information for optimal development of oil and gas fields, including their search, exploration and development.
O.L. Kuznetsov, I.A. Chirkin, S.I. Arutyunov, E.G. Rizanov, V.P. Dyblenko, V.V. Dryagin   +5 more
doaj   +1 more source

Marine heatwaves shape size‐dependent thermal exposure, habitat use and marine residency in Arctic char (Salvelinus alpinus)

Journal of Fish Biology, EarlyView.
Abstract Marine heatwaves (MHWs) are increasing in high‐latitude oceans, yet behavioural responses of anadromous fishes to these potential stressors during short marine feeding seasons remain poorly understood. We combined acoustic telemetry (internal temperature and depth) with satellite‐derived sea surface temperature data to quantify Arctic char ...
Jessica E. Desforges, David Côté, Joey Angnatok, J. Brian Dempson, Travis E. Van Leeuwen   +4 more
wiley   +1 more source

Which attributes of restored oyster reefs provide the best habitat for sportfish?

Restoration Ecology, EarlyView.
Abstract Introduction Restoration practitioners seek to restore oyster ecosystems as habitat designed for species targeted by recreational fisheries, but they require information on which specific habitat parameters of oyster reefs are preferred by fish.
Matthew S. Kendall, Brianna V. Cahill, Laughlin Siceloff, Victoria M. Congdon, Christopher Biggs, Katie M. Swanson, Terry A. Palmer   +6 more
wiley   +1 more source

Advances in Formation Evaluation and Well Logging Technology: Review of the SPWLA 65th Annual Logging Symposium

Cejing jishu
The Annual Logging Symposium of Society of Petrophysicists and Well Log Analysts (SPWLA) is a key event for the exchange of new theories, methods, technologies, and products in well logging. Based on 145 academic papers presented at the 65th SPWLA Annual
YIN Chengfang, SHEN Zhenzhen, FENG Linwei, DU Xuewei, ZHANG Caitong   +4 more
doaj   +1 more source

Outcrop and subsurface characterisation of a mixed tidal and wave‐influenced coastline (Triassic Red Beds, SE Spain)

Sedimentology, EarlyView.
ABSTRACT Paralic depositional systems are complex and heterogeneous sedimentary environments, presenting challenges for predicting reservoir architecture and connectivity. Their stratigraphic and facies variability arises from the dynamic interplay between fluvial, tidal and wave processes, and their sensitivity to sea‐level fluctuations, sediment ...
Luis Miguel Yeste, Marc Gil‐Ortiz, Neil David McDougall, Patricia Cabello, César Viseras   +4 more
wiley   +1 more source

A Triassic chronostratigraphic and palaeogeographic framework for the Utsira High area, northern North Sea: Reconstructing a basin‐scale drainage divide

Sedimentology, EarlyView.
ABSTRACT The Triassic succession of the northern North Sea comprises a series of interbedded sandstones, mudstones and conglomerates deposited under a fluctuating arid to semi‐humid climate regime, which are often difficult to correlate regionally due to differing lithostratigraphic schemes and poor age control. Despite existing regional studies on the
Riccardo Sordi, Adrian Hartley, Shaan Heydenrych, Spyridon Saltapidas   +3 more
wiley   +1 more source