Results 31 to 40 of about 2,561 (262)
Study and Choice of Water Saturation Test Method for Tight Sandstone Gas Reservoirs
Frontiers in Physics, 2022 This study aims at investigating the applicability of the commonly used water saturation test methods such as distillation extraction method, nuclear magnetic resonance (NMR) method, constant weight method, and Coulomb method in the water saturation test
Cheng Liu +13 more
doaj +1 more source
Petroleum Exploration and Development, 2015 By using core samples, thin section, scanning electron microscope and rate-controlled mercury penetration data etc, the reservoir characteristics, oil-bearing characteristics and main controlling factors of the tight sandstone oil in Fuyu oil layer of Da'
Yu SUN +7 more
doaj +1 more source
Forced imbibition in tight sandstone cores
Shiyou shiyan dizhi, 2021 Spontaneous imbibition (SI) generally occurs under forced pressure (pressure difference between hydraulic fluid pressure and original pore pressure) during a shut-in period. However, the experimental study of SI is commonly performed at atmospheric pressure and the effect of forced pressure is often neglected.
Yun JIANG +6 more
openaire +1 more source
Characteristics and resource prospects of tight oil in Ordos Basin, China
Petroleum Research, 2016 : Efficient large-scale development of ultra-low-permeability reservoirs (0.3–1 mD) has been achieved in the Changqing Oilfield, Ordos Basin of China. According to unique features of petroleum exploration and development in this basin, tight oil herein ...
Hua Yang, Shixiang Li, Xianyang Liu
doaj +1 more source
The Anatomical Record, EarlyView.Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe +4 more
wiley +1 more source
Natural Gas Industry B, 2020 Tight sandstone gas reservoirs have poorer porosity–permeability relationships, so conventional reservoir classification schemes can hardly satisfy the classification and evaluation demand of this type of reservoirs.
Xingxing Kong +5 more
doaj +1 more source
Stress effects on the relative permeabilities of tight sandstones
Comptes Rendus. Géoscience, 2018 This note deals with the study of stress-sensitive relative permeability experimentally observed in low permeable sandstones. These sandstones are made up of quartz grains surrounded by permeable interfaces between grains and pores. A micromechanical model of relative permeability behaviour under loading highlights the role of the closure of interfaces.
Jeannin, Laurent +3 more
openaire +3 more sources
The Anatomical Record, EarlyView.Abstract Belonostomus longirostrisis was named for an isolated jaw fragment from freshwater Upper Cretaceous (Campanian) sediments of the Dinosaur Park Formation of Alberta, Canada. Following the description of the Albertan species, numerous isolated cranial and postcranial elements have been collected from the Dinosaur Park Formation and assigned to B.
Mondo Miyazato +4 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro +7 more
wiley +1 more source
True triaxial mechanical characteristics of tight sandstone with different oil and water staturation
地质科技通报, 2023 The occurrence of fluids such as water, oil or natural gas in tight sandstone reservoirs may affect the mechanical characteristics of tight sandstone. This paper selects tight sandstones of Yanchang Formation in Panlong area of Ordos Basin, and uses YSZS-
Pengxiang Xu +7 more
doaj +1 more source