Results 101 to 110 of about 593,532 (227)

Downcurrent variation in submarine channel‐fill architecture from the shelf to upper slope

Sedimentology, EarlyView.
ABSTRACT The transition between the shelf and the upper slope is often considered an area of sediment bypass, where steeper gradients increase flow velocities and maintain particles in suspension. In addition to transferring sediments into deeper basins, upper‐slope areas can also host channelised submarine deposits.
Moreno Pizzutto, Fabrizio Felletti, Adam McArthur, Mattia Marini, George Pantopoulos, Daniele Invernizzi, Chiara Zuffetti   +6 more
wiley   +1 more source

The stress sensitivity of permeability in tight oil reservoirs

Energy Exploration & Exploitation, 2019
In the development of tight reservoirs, the permeability of the rock possesses strong stress sensitivity with the dynamic change of formation pressure and effective stress.
Huan Wang, Bingyu Ji, Chengyuan Lv, Liang Zhang, Xiaofeng Li, Can Cui, Hongmin Yu, Jun Nie   +7 more
doaj   +1 more source

Salt Range Formation of Pakistan Preserves Unique Record of Volcanic Fertilization During the Ediacaran Shuram Excursion

Terra Nova, EarlyView.
ABSTRACT Thin, discontinuous, organic‐rich oil shale beds in the siliciclastic‐evaporitic Salt Range Formation (SRF) of Pakistan are of approximate Neoproterozoic to Cambrian age based on stratigraphic constraints. The beds are enriched (26–43 wt.% total organic carbon, TOC) in aliphatic organic matter (OM) of low thermal maturity despite their ...
Paul C. Hackley, Ryan J. McAleer, Jay M. Thompson, Brett J. Valentine, Imran Khan   +4 more
wiley   +1 more source

Tight Sandstone Gas Reservoir Types and Formation Mechanisms in the Second Member of the Xujiahe Formation in the Anyue Area, Sichuan Basin

Energies
With the advancement of oil and gas exploration and development, tight sandstone gas has become a major current exploration field. However, the effective development of tight sandstone gas faces significant challenges due to the strong heterogeneity of ...
Lin Jiang, Xuezhen Sun, Dongxia Chen, Wenzhi Lei, Hanxuan Yang, Yani Deng, Zhenhua Wang, Chenghai Li, Tian Liu, Chao Geng, Tian Gao, Zhipeng Ou   +11 more
doaj   +1 more source

A Method of Calculating Saturation for Tight Sandstone Reservoirs: A Case of Tight Sandstone Reservoir in Dabei Area of Kuqa Depression in Tarim Basin of NW China

Open Journal of Yangtze Oil and Gas, 2018
The tight sand reservoir in Dabei Area has been the main block of exploration and development of natural gas inTarimBasin. Because of low porosity and fracture development, there exist errors in calculation of reservoir saturation. According to micro-resistivity image logging and acoustic full-wave logging, the reservoir fractural effectiveness is ...
Jun Tang, Yi Xin, Deyang Cai, Chengguang Zhang   +3 more
openaire   +2 more sources

Microplastic Dynamics in Sediment Layers of Two Ramsar‐Designated Wetlands

Water and Environment Journal, EarlyView.
ABSTRACT Little is known about the vertical and spatial dynamics of microplastics in relation to hydrology and land use, particularly in African context. This study aimed to assess the abundance, type, colour and vertical distribution of microplastics in sediment from two Ramsar‐designated wetlands, the Makuleke and Nylsvley. Sediment core samples were
Nelisiwe Ngomane, Linton F. Munyai, Ross N. Cuthbert, Pule Mpopetsi, Farai Dondofema, Rabelani Mudzielwana, Philippa Huchzermeyer, Tatenda Dalu   +7 more
wiley   +1 more source

Pore Structure Characteristics and Controlling Factors of a Tight Sandstone Reservoir in the Paleogene Shahejie Formation, Nanpu Sag, Bohai Bay Basin, China. [PDF]

ACS Omega, 2022
Yang J, Zhang J, Ji Y, Lv W, Wu H, He Z, Zhao Z, Meng L.   +7 more
europepmc   +1 more source

Key Technologies for Horizontal Well Development in Deep Tight Sandstone Reservoirs

Energy Science & Engineering
Deep tight sandstone oil and gas reservoirs are exerting an increasingly crucial role in the augmentation of fossil energy reserves and the provision of energy.
Yiting Guan, Xin Cheng, Xiaoyang Chen
doaj   +1 more source

Separating Environmental Modulation From Source Intermittency in Methane Leakage From a Legacy Well in British Columbia

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 20, 28 October 2026.
Abstract Legacy oil and gas wells are an incompletely quantified source of greenhouse gas emissions and offer leakage pathways for subsurface gas migration if inadequately isolated. We present a high‐resolution, process‐based characterization of leakage dynamics at an integrity‐compromised legacy gas well in northeastern British Columbia using five ...
Benjamin Pullen, Aaron G. Cahill
wiley   +1 more source

Elevational Habitat Associations of Tree Species and Deadwood in Ephemeral Streams of the Namib Desert

Ecology and Evolution, Volume 16, Issue 10, October 2026.
The research presents an in‐depth spatial study of three tree species that grow along ephemeral streams in the arid and hyper‐arid western part of Namibia. The trees form a linear oasis in major streams like the Kuiseb River and provide important shelter and habitat for a variety of plant and animal species. ABSTRACT In arid and hyper‐arid regions with
Franziska Messirek, Stephan Getzin
wiley   +1 more source