Results 31 to 40 of about 143,036 (317)

Controls on Reservoirs Quality of the Upper Jurassic Mengyin Formation Sandstones in Dongying Depression, Bohai Bay Basin, Eastern China

Energies, 2020
The Upper Jurassic Mengyin Formation sandstones are important targets for petroleum exploration in Dongying Depression of Bohai Bay Basin, Eastern China. Although the current burial depth of the Upper Jurassic Mengyin Formation sandstones is shallow (900&
Shaochun Yang, Ya Wang, Shiqi Zhang, Yongchao Wang, Yifan Zhang, Yongfu Zhao   +5 more
doaj   +1 more source

A Method of Productivity Prediction for Multi-Fractured Horizontal Well

Cejing jishu, 2023
The reservoir of horizontal wells in a block of Junggar basin is tight and highly heterogeneous. After large-scale volume fracturing by classification and clustering, there is a large difference in production.
YANG Fan, GAO Yanwu, SHAO Guanghui, LIU Jieli, XU Rui, ZHOU Jufeng   +5 more
doaj   +1 more source

The Impact of Clay Minerals on the Porosity Distribution of Clastic Reservoirs: A Case Study from the Labuan Island, Malaysia

Applied Sciences, 2023
Clay mineral content and diagenetic processes are vital factors that affect reservoir quality, especially in tight clastic reservoirs, which are crucial for industrial and scientific purposes.
Muhammad Risha, Haylay Tsegab, Omeid Rahmani, Jalal Douraghi   +3 more
doaj   +1 more source

Evaluation of Reservoir Quality and Forecasted Production Variability along a Multi-Fractured Horizontal Well. Part 1: Reservoir Characterization

Energies, 2021
Completion design for horizontal wells is typically performed using a geometric approach where the fracturing stages are evenly distributed along the lateral length of the well.
Daniela Becerra, Christopher R. Clarkson, Amin Ghanizadeh, Rafael Pires de Lima, Farshad Tabasinejad, Zhenzihao Zhang, Ajesh Trivedi, Roman Shor   +7 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Impact of clay coating on sandstone reservoir quality: A multiphase-field investigation by numerical simulation

Petroleum Exploration and Development
The presence of clay coatings on the surfaces of quartz grains can play a pivotal role in determining the porosity and permeability of sandstone reservoirs, thus directly impacting their reservoir quality.
Akash KUMAR, Michael SPÄTH, Nishant PRAJAPATI, Benjamin BUSCH, Daniel SCHNEIDER, Christoph HILGERS, Britta NESTLER   +6 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

RESERVOIR QUALITY EVALUATION OF THE MERAMEC AND UPPER OSAGE UNITS IN THE ANADARKO BASIN [PDF]

, 2018
The objective of this study is to provide a comparative look at the diagenetic evolution and reservoir quality characteristics of the Meramec and Upper Osage units in the STACK (Sooner Trend Anadarko Basin of Canadian and Kingfisher counties) and NW ...
Hardwick, Jeffrey
core  

Variability in North Atlantic marine radiocarbon reservoir effects at c. 1000 AD [PDF]

, 2006
14C age measurements made on samples from three archaeological sites located on North Atlantic coasts were used to investigate the marine reservoir effect (MRE) at c. AD 1000.
McGovern, TH, McGovern, T H, Cook, G.T., McGovern, T.H., Church, M J, Church, M.J., Church, MJ, Cook, GT, Cook, G T, Dugmore, A J, Dugmore, AJ, Cook, G, Dugmore, A.J., Ascough, P L, Arge, S.V., Ascough, PL, Arge, S V, Ascough, P. L., Arge, SV   +18 more
core   +1 more source

The puzzling influence of Ophiomorpha (trace fossil) on reservoir porosity: X-ray microtomography analysis

Frontiers in Earth Science, 2022
Bioturbation can influence petrophysical properties (e.g., porosity, permeability) of sedimentary rocks and, in consequence, reservoir quality. The impact can be positive, negative, or neutral, requiring detailed ichnological analysis.
Olmo Miguez-Salas, Jose Cabrera Ortiz, Javier Dorador, Francisco J. Rodríguez-Tovar   +3 more
doaj   +1 more source