Prediction and zoning evaluation of in-situ stress field in deep tight sandstone reservoirs of Western Sichuan Depression, Sichuan Basin: a case study of the second member of Xujia... by Tao HUANG, Ruixue LI, Hucheng DENG, Jianhua HE, Kesai LI, Yan LIU, Zehou XIANG, Yifei DU, Tairan YE

“…The results show that the current maximum horizontal principal stress direction in the Xu 2 Member of the Xinchang structural belt mostly ranges from N85° to 108°E, with an overall counterclockwise rotation as burial depth increases. …”
Get full text

Calculation Model for Adhesion Resistance in Differential Pressure Sticking of Downhole String by Zhou Yuting, Zhang Hui, Yang Boyuan, Wang Peng, Yu Qing, Liu Kerou, Lü Kunhong

“…Differential pressure sticking is one of the main causes for significantly increased non-production time and cost.The existing research on differential pressure sticking often relies on empirical summaries of field da-ta or laboratory tests，while the current theoretical model research also fails to consider the stress on pipe string，wellbore condition and mud cake strength.In this paper，considering the length，force and area of contact between the pipe string and the wellbore wall，a calculation model for the adhesion resistance in differential pressure stick-ing of downhole string was built.Then，the model was used for sensitivity analysis on the axial force of the string，the wellbore parameters（well diameter，hole angle，dogleg） and the mud cake parameters（mud cake thickness，elastic modulus，Poisson’s ratio，permeability），to understand how these factors affect the adhesion resistance.Finally，the model was verified through example application.The results show that for the axial force of the string，the adhesion resistance decreases with the increase of tension and increases with the increase of pressure.For the main wellbore parameters，the adhesion resistance decreases with the increase of well diameter and increases with the increase of hole angle and dogleg.For the main mud cake parameters，the adhesion resistance decreases with the increase of the elastic modulus of the mud cake，slightly decreases with the increase of the Poisson’s ratio of the mud cake，and first increases and then tends to be smooth with the increase of the mud cake permeability； and the maximum adhesion resistance increases with the increase of the mud cake thickness.The research results provide a theoretical basis for the further research on differential pressure sticking and a theoretical guidance for the field pre-vention of sticking accidents.…”
Get full text

Russian Cargo Traffic in New Conditions: Opportunities and Restrictions by M. O. Turaeva

Get full text

Study on the Effect of Different Cathodic Protection Potentials on the Growth of Mixed Bacteria and Cathodic Protection Efficiency by Zeyu Zuo, Jie Zhang, Qingle Hou, Chengjun Zhang, Ke Wang, Jizhou Duan, Xilei Chen, Baorong Hou

“…The results indicate that in a marine environment containing IOB and SRB, the cathodic protection efficiency of the ICCP system increases with the negative shift of the protection potential. …”
Get full text

Impact of Laser Ablation Strategies on Electrochemical Performances of 3D Batteries Containing Aqueous Acid Processed Li(Ni_0.6Mn_0.2Co_0.2)O<sub>2</s... by Penghui Zhu, Yannic Sterzl, Wilhelm Pfleging

“…Rate capability analyses of cells with laser structured aqueous processed electrodes exhibited enhanced performance with capacity increases of up to 60 mAh/g at high current density, while a 65% decrease in ionic resistance was observed for cells with laser structured electrodes. …”
Get full text

Performance Evaluation of Low-Cost Infrared Thermal Imagers for Quantitative Surface Temperature Measurement in Building Enclosures by ZHANG Wenhao, SUN Zhen, GAO Siru, WANG Xue, LI Honglian, Yang Liu

“…However, in non-uniform environments, the temperature difference between the wall surface and the surrounding environment increased the measurement error, especially when the emissivity setting was low. …”
Get full text

EXPLOITATIVE DESTRUCTION FEATURES FOR DETONATION ULTRADISPERSED DIAMONDS OF INITIAL METALLIC PROTECTION FOR ABRASIVE POWDER GRAINS TO DIAMOND-SPARK GRINDING TOOLS by Yury GUTSALENKO, Cătălin IANCU, Sergey BRATAN

“…One problem is that the presence of detonation ultra-dispersed diamonds in the grain metal coating of diamond powders not only improves the coating functional reliability in protection from destruction in the subsequent pressing and sintering in the production tool, but also resistance of such coating to the opening of the diamond cutting basis of the grains on the grinding wheel working surface that come into working contact with the material being processed. An analysis of the features of an effective exploitative destruction of detonation ultra-dispersed diamonds in the metal coating using electric current in the tool of the diamondspark grinding processes is presented.…”
Get full text

STUDY OT THE INFLUENCE OT RESIDUAL OIL ON CONDENSATE LOSSES AT SREDNEBOTUOBINSKIY OIL AND GAS CONDENSATE FIELD by E. I. Inyakina, R. K. Katanova, V. V. Inyakin, M. J. Alsheikhly

“…At the same time, formation condensate losses in the reservoir increase.…”
Get full text

DIGITAL FILTERS IMPLEMENTATION IN MICROPROCESSOR-BASED RELAY PROTECTION by Yu. V. Rumiantsev, F. A. Romaniuk, V. Yu. Rumiantsev, I. V. Novash

“…This results in distortion of the current transformer secondary current which in this case contains higher and inter-harmonics. …”
Get full text

Results of Water Inflow Elimination in Wells Draining Gas Сondestate Deposits by E. Vaganov, S. Sokhoshko, A. Sarancha, E. Levitina, I. Krasnov, T. Kharitonova

Get full text

Human motor control during movements with high demands by Paul Kaufmann, Willi Koller, Elias Wallnöfer, Basilio Goncalves, Clara Scheer, Juliana Exel, Olivia Froschauer, Catherine Hlavac, Mathias Wiplinger, Lorenz Zweier, Arnold Baca, Hans Kainz

Get full text

Sacral neuromodulation in patients with neurogenic lower urinary tract dysfunction by Cecile T. Pham, Cameron J. Parkin, James Kovacic, Siying Yeow, Yunzhi Yang, Danielle Delaney, Amanda Chung

Get full text

Impacts of MDR/XDR-TB on the global tuberculosis epidemic: Challenges and opportunities by Kai Ling Chin, Luis Anibarro, Zi Yuan Chang, Praneetha Palasuberniam, Zainal Arifin Mustapha, Maria E. Sarmiento, Armando Acosta

“…Moreover, inconsistent drug therapy or unsuitable drug regimens could also lead to the subsequent development of drug resistance. The close contacts of an index MDR/XDR-TB patient are at increased risk of developing MDR/XDR-TB. …”
Get full text

Evaluating the Effects of Prostate Radiotherapy Intensified with Pelvic Nodal Radiotherapy and Androgen Deprivation Therapy on Myelosuppression: Single-Institution Experience by Yousef Katib, Steven Tisseverasinghe, Ian J. Gerard, Benjamin Royal-Preyra, Ahmad Chaddad, Tania Sasson, Boris Bahoric, Federico Roncarolo, Tamim Niazi

Get full text

Promotion of gentiopicroside production and transcriptional responses of biosynthetic genes in adventitious root cultures of Gentiana scabra Bunge by elicitation with methyl jasmon... by Jingwen Hao, Jian Zang, Dan Liu, Ning Hao, Rujun Zhou

Get full text

Pattern Anlysis of Risk-Reducing Strategies in Unaffected Korean <i>BRCA1/2</i> Mutation Carriers by Dabin Kim, Jai Min Ryu, Sang-Ah Han, Zisun Kim, Sung-Won Kim

Get full text

Alpha-Lipoic Acid-Mediated Inhibition of LTB4 Synthesis Suppresses Epithelial-Mesenchymal Transition, Modulating Functional and Tumorigenic Capacities in Non-Small Cell Lung Cancer... by María José Torres, PhD, Juan Carlos Ríos, PhD, Alexandra Valle, MSc, Sebastián Indo, PhD, Kevin Brockway GV, MSc, Fernanda López-Moncada, PhD, Mario Faúndez, PhD, Enrique A. Castellón, PhD, Héctor R. Contreras, PhD

Get full text

Beef Consumption and Cardiovascular Disease Risk Factors: A Systematic Review and Meta-analysis of Randomized Controlled Trials by Lisa M Sanders, Orsolya M Palacios, Meredith L Wilcox, Kevin C Maki

Get full text

Protective effect of the Quercetin on experimental cuprizone-induced multiple sclerosis in male C57BL/6 mice by Samin Ghasemi, Shahin Hassanpour, Razieh Hosseini

Get full text

CRISPR/Cas9 multiplex genome editing to enhance grain lysine concentration in a US rice cultivar by Khushboo Rastogi, Sumeet P. Mankar, Oneida Ibarra, Marco Molina-Risco, Mayra Faion-Molina, Marcela Bellinatti-Della Gracia, Keerti S. Rathore, Michael J. Thomson, Endang M. Septiningsih

Get full text