Results 41 to 50 of about 3,713,734 (286)

Well Log Evaluation Method of Shale Gas Flow Capacity

Cejing jishu
The gas-water two-phase seepage capacity of shale gas reservoir has an important influence on its productivity, but there is no method to evaluate the shale gas flow capacity directly by geophysical means such as logging.
NIE Xin, SUN Chuanrui, HAO Yuexiang, WANG Benqiang, LIN Wei, LI Bingke, WANG Chenchen, ZHANG Jizhen, HAN Denglin   +8 more
doaj   +1 more source

Categorical data analysis using a skewed Weibull regression model

, 2017
In this paper, we present a Weibull link (skewed) model for categorical response data arising from binomial as well as multinomial model. We show that, for such types of categorical data, the most commonly used models (logit, probit and complementary log-
Caron, Renault, Dey, Dipak, Polpo, Adriano, Sinha, Debajyoti   +3 more
core   +2 more sources

Clinical Characteristics and Prognostic Risk Factors for Pediatric B‐Cell Lymphoblastic Lymphoma: A Multicenter Retrospective Cohort Study for China Net Childhood Lymphoma

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background B‐cell lymphoblastic lymphoma (B‐LBL) represents a rare variety of non‐Hodgkin lymphoma, with limited research on its biology, progression, and management. Methods A retrospective analysis was performed on the clinical characteristics of 256 patients aged ≤18 years who received treatment under the China Net Childhood Lymphoma (CNCL)‐
Zhijuan Liu, Jian Wang, Ling Jin, Yanlong Duan, Fu Li, Yueping Jia, Leping Zhang, Xiaojun Yuan, Wei Liu, Ying Liu, Ansheng Liu, Mincui Zheng, Yunpeng Dai, Lian Jiang, Lirong Sun, Xiaowen Zhai, Rong Liu, Chunju Zhou, Zifen Gao, Yonghong Zhang, Xiaomei Yang   +20 more
wiley   +1 more source

INTEGRATION OF MULTIPLE LOG DATA FOR ACCURATE POROSITY AND PERMEABILITY ESTIMATION, NIGER DELTA BASIN [PDF]

Geological Behavior
The use of well logs is significant to obtain accurate and improved porosity, permeability and watersaturation. This accounts for the ability of the wells to store and transmit fluid (hydrocarbon) and itsavailability potential. Three wells (OB-14, OB-15,
Attai, E. S., Akpabio, I. O.
doaj   +1 more source

Petrophysical Properties of an Iraqi Carbonate Reservoir Using Well Log Evaluation

Iraqi Journal of Chemical and Petroleum Engineering, 2020
This research was aimed to determine the petrophysical properties (porosity, permeability and fluid saturation) of a reservoir. Petrophysical properties of the Shuiaba Formation at Y field are determined from the interpretation of open hole log data of ...
Sarah S. Zughar, Ahmad A. Ramadhan, Ahmed K. Jaber   +2 more
doaj   +1 more source

Exercise Interventions in Children, Adolescents and Young Adults With Paediatric Bone Tumours—A Systematic Review

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Bone tumours present significant challenges for affected patients, as multimodal therapy often leads to prolonged physical limitations. This is particularly critical during childhood and adolescence, as it can negatively impact physiological development and psychosocial resilience.
Jennifer Queisser, Claire Laurie, Teresa Schmidt, Irene von Luettichau, Peter Bekkering, Sabine Kesting   +5 more
wiley   +1 more source

Evaluating Machine Learning Techniques for Carbonate Formation Permeability Prediction Using Well Log Data

Iraqi Geological Journal, 2023
Machine learning has a significant advantage for many difficulties in the oil and gas industry, especially when it comes to resolving complex challenges in reservoir characterization.
Usama Alameedy, Ahmed Almomen, Najah Abd
doaj   +1 more source

Dense clusters of primes in subsets [PDF]

, 2014
We prove a generalization of the author's work to show that any subset of the primes which is `well-distributed' in arithmetic progressions contains many primes which are close together.
Maynard, James
core  

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Research Status and Development Direction of Well Log Cyclostratigraphy

Cejing jishu
Well log cyclostratigraphy has become the foundation for studying many key scientific issues in the field of geosciences by identifying, extracting, and interpreting astronomical cycles recorded by geophysical logs. This paper analyzes the driving forces
PENG Cheng, ZOU Changchun, CAO Jinyu
doaj   +1 more source