Results 81 to 90 of about 4,389,832 (297)

A Highly Inhibitive Vegetable Oil-Based Drilling Fluid

Zuanjingye yu wanjingye
This study aims at finding a more environmentally friendly and efficient oil-based drilling fluid to reduce drilling costs, to minimize the negative effects of the drilling fluid on the environment, to enhance the safety and quality of drilling operation,
Hua XIAO, Guangcai WANG, Yunda ZHANG, Wancheng LIU, Yun REN, Shixing WAN, Xiaolong WANG   +6 more
doaj   +1 more source

Development and Application of ZLZY310 High Temperature Drilling Fluid Cooling System

Shiyou jixie, 2022
To solve the problem of inaccuracy of MWD instruments caused by downhole high-temperature environment,ZLZY310 high-temperature drilling fluid cooling system was developed.Based on the heat exchange theory,the influence of the drilling fluid entry ...
李胜忠, 张铜鋆, 聂军, 杨智钰, 吕合军, 包秋民   +5 more
doaj  

Sodium alginate as an eco-friendly rheology modifier and salt-tolerant fluid loss additive in water-based drilling fluids

RSC Advances, 2022
The rheological and filtration performance of drilling fluids greatly depends on the additives used. To address the negative impact on the drilling fluid performance stemming from electrolyte contamination, a sustainable sodium alginate (SA) biopolymer ...
Zhao-Jie Wei, Mao-Sen Wang, Ying Li, Ying-Hui An, Kai-Ming Li, K. Bo, M. Guo   +6 more
semanticscholar   +1 more source

Remote Activation of Wnt Signaling and Cell Proliferation by E‐Cadherin Magnetomechanical Stimulation

Advanced Functional Materials, EarlyView.
A pioneering magnetogenetic toolkit enables non‐invasive, precise spatiotemporal modulation of intracellular Wnt/β‐catenin signaling. Functionalized magnetic nanoparticles (MNPs@E/EC15) target cellular E‐cadherins to generate localized magnetomechanical forces under low‐intensity magnetic fields.
Christian Castro‐Hinojosa, Pablo Martínez‐Vicente, Lucía G. Recaredo, Susel Del Sol‐Fernández, Pilar Gomollón‐Zueco, Yilian Fernández‐Afonso, Raluca M. Fratila, María Moros   +7 more
wiley   +1 more source

Calculation of safe drilling mud density window for shale formation by considering chemo-poro-mechanical coupling effect

Petroleum Exploration and Development, 2019
It is difficult to define safe drilling mud density window for shale sections. To solve this problem, the general Biot effective stress principle developed by Heidug and Wong was modified.
Shifeng ZHANG, Haige WANG, Zhengsong QIU, Wenke CAO, Hongchun HUANG, Zhixue CHEN   +5 more
doaj   +1 more source

Research and Application of Evaluation Methods for Functional Characteristics of Oil-Based Drilling Fluid in Shale Gas Wells

Geofluids, 2021
Intelligent unconventional reservoir optimal production control technology is a comprehensive technology, involving geology, reservoir simulation, and efficient drilling and completion.
Dewei Gao, Jiajun Xie, Shengming Huang, Shenyao Wu, Pengcheng Wu, Weian Huang   +5 more
doaj   +1 more source

Configuration‐Encoded Cell Alignment by Light‐Gated Silicon Photovoltaic Microcell Arrays

Advanced Functional Materials, EarlyView.
Light‐gated silicon photovoltaic microcells convert pulsed illumination into localized electrical cues. Arranging otherwise similar microcells into four‐lobed, six‐lobed, or circular patterns directs fibroblasts into corresponding local arrangements without wired stimulation.
Yifan Tao, Ilayda Namli, Joseph Christakiran Moses, Youdi Liu, Suihong Liu, Syed Hasan Askari Rizvi, Yasar Ozer Yilmaz, Ibrahim T. Ozbolat   +7 more
wiley   +1 more source

Proceedings of the Integrated Ocean Drilling Program 307: Modern Carbonate Mounds: Porcupine Drilling

, 2006
<p>Challenger Mound, a prominent mound structure covered with dead cold-water coral rubble on the southwest Irish continental margin, was the focus of 12 days of scientific drilling aboard the <em>JOIDES Resolution</em> during ...
Sasaki, Keiichi, Titschack, Jürgen, Foubert, Anneleen, Browning, Emily L., Gharib, Jamshid J., Frank, Tracy D., Bjerager, Morten, Andres, Miriam S., Li, Xianghui, Léonide, Philippe, Gaillot, Philippe, Abe, Kohei, Mangelsdorf, Kai, Huvenne, Veerle Ann Ida, Novosel, Ivana, Samarkin, Vladimir, Kano, Akihiro, Williams, Trevor, Fuwa, Yuji, De Mol, Ben, Spivack, Arthur J., Takashima, Chizura, Ferdelman, Timothy G., Cragg, Barry, Sakai, Saburo   +24 more
core   +1 more source

A Nonlinear Organic Low‐Frequency Sound Sensor Based on Electrochemical Coupling in a Solidified Gel Membrane

Advanced Functional Materials, EarlyView.
A novel nonlinear infrasound sensor concept based on a free‐standing ion conductive gel membrane is introduced. Acoustic signals are directly transduced into an electrical signal using an internal application mechanisms (gating). The nonlinearity might be used for neuromorphic in‐sensor computing. ABSTRACT Measuring low‐frequency or infrasound acoustic
Maarten Mittmann, Carsten Habenicht, Andreas Hofacker, Richard Kantelberg, Stefan Jacob, Karl Leo, Hans Kleemann   +6 more
wiley   +1 more source

Proceedings of the Integrated Ocean Drilling Program 344: Costa Rica Seismogenesis Project, Program A Stage 2 (CRISP-A2)

, 2013
<p>The Costa Rica Seismogenesis Project (CRISP) was designed to elucidate processes that control nucleation and seismic rupture of large earthquakes at erosional subduction zones. The CRISP study area is located offshore the Osa Peninsula where the
Burkett, Ashley, Charpentier, Delphine, Sakaguchi, Arito, Vannucchi, Paola, Screaton, Elizabeth J., Petronotis, Katerina, Malinverno, Alberto, Hashimoto, Yoshitaka, Jovane, Luigi, Kutterolf, Steffen O., Saito, Saneatsu, Harris, Robert N., Diz, Paula, Hamahashi, Mari, Choi, Jiyoung, Millan, Cristina, Yan, Quanshu, Baxter, Alan T., Solomon, Evan A., Sandoval Gutierrez, Maria Isabel, Berg, Richard D., Smith-Duque, Christopher E., Martin, Kylara, Torres, Marta E., Straub, Susanne M., Heydolph, Ken, Uchimura, Hitomi, Zhao, Xixi, Yamamoto, Yuzuru, Kastner, Miriam, Tanikawa, Wataru, Kurz, Walter, Li, Yong Xiang, Nascimento, Debora B.   +33 more
core   +1 more source