Results 21 to 30 of about 355,630 (305)
A new physical simulation system of drilling mud invasion in formation module
Petroleum Exploration and Development, 2017 After several key technologies, including the saturation and pressurization of large sample, design of invasion room, sealing and pressure maintaining of the apparatus, and dynamic monitoring of the entire invasion process were solved, a multifunctional ...
Yiren FAN +4 more
doaj +1 more source
Fracture permeability estimation utilizing conventional well logs and flow zone indicator
Petroleum Research, 2022 Characteristics of the natural open fractures on the oil and gas reservoirs is crucial in drilling and production planning. Direct methods of fractures studies such as core analysis and image log interpretation are usually not performed in all drilled ...
Hassan Bagheri, Reza Falahat
doaj +1 more source
Frontiers in Earth ScienceTight sandstone reservoirs exhibit low porosity, low permeability, significant heterogeneity, and complex gas-water distribution patterns, posing significant challenges for conventional logging methods in accurate gas reservoir identification. Incomplete
Ran Zhang +11 more
doaj +1 more source
Response simulation and corresponding analysis of dual laterolog in cavernous reservoirs
Petroleum Exploration and Development, 2016 To figure out the response characteristics of dual laterolog logging in carbonate and volcanic cavernous reservoirs, the parameters of laboratory formation model and tool were optimized on the basis of numerical simulation, then, the experimental data ...
Yiren FAN +6 more
doaj +1 more source
Petroleum Exploration and Development, 2021 Based on the pseudo-analytical equation of electromagnetic log for layered formation, an optimal boundary match method is proposed to adaptively truncate the encountered formation structures.
Lei WANG +4 more
doaj +1 more source
Food logging: an information literacy perspective [PDF]
, 2017 Purpose: The aim of the paper is to explore the meaning of information literacy in food logging, the activity of recording food intake and monitoring weight and other health conditions that may be affected by diet, using applications (apps) accessed ...
Cox, A.M., Goodale, P., McKinney, P.A.
core +1 more source
Optimal Design and Application of Two-Dimensional NMR Logging in Chuanxi Tight Gas Reservoir
Chinese Journal of Magnetic Resonance, 2018 Two-dimensional nuclear magnetic resonance (2D NMR) logging has been increasingly used in the reservoir modeling and fluid identification. A series of problems were encountered when applying the technique in the Chuanxi gas field, including poor ...
ZHANG Shi-mao +3 more
doaj +1 more source
Fluid identification method based on 2D diffusion-relaxation nuclear magnetic resonance (NMR)
Petroleum Exploration and Development, 2012 Based on current acquisition modes of MRIL-Prime NMR logging tool, 2D NMR signals could be obtained by the combination of logging data from different modes, then the fluid properties in complicated reservoirs could be distinguished by 2D diffusion ...
Falong HU +5 more
doaj +1 more source
Petroleum Exploration and Development, 2022 To make the quantitative results of nuclear magnetic resonance (NMR) transverse relaxation (T2) spectrums reflect the type and pore structure of reservoir more directly, an unsupervised clustering method was developed to obtain the quantitative pore ...
Xinmin GE +8 more
doaj +1 more source
Harvesting systems for steep terrain in the Italian Alps: state of the art and future prospects [PDF]
, 2016 Steep slope forest operations in Central Europe and in particular in the Alps are strongly related to the adoption of the cable-based harvesting system, even if innovative ground-based harvesting system, even if innovative ground-based harvesting systems
Cavalli, Raffaele +2 more
core +1 more source