Results 41 to 50 of about 267,136 (314)

Multi-Mixed Metal Hydroxide as a Strong Stratigraphic Nanoclay Inhibitor in Solid-Free Drilling Fluid

Nanomaterials, 2022
Solid-free drilling fluid has more advantages as a new type of drilling fluid compared with traditional drilling fluid, such as improving drilling efficiency, protecting oil and not having clay particles clog the oil and gas layer.
Bowen Zhang, Qingchen Wang, Weichao Du, Yongfei Li, Jianqing Zhang, Jie Zhang, Marián Matejdes, Michal Slaný, Chen Gang   +8 more
doaj   +1 more source

Optimization of Drilling Parameters for Aluminum Metal Matrix Composite Using Entropy-Weighted TOPSIS under MQL Conditions

Engineering Transactions, 2023
The aim of the present work is to understand the effect of drilling parameters (drill speed and feed rate) during the drilling of a Saffil fiber-reinforced Al metal matrix composite (MMC) under minimum quantity lubrication (MQL) condition.
Sachin G. GHALME, Paweł KAROLCZAK
doaj   +1 more source

Abrasive water jet drilling of advanced sustainable bio-fibre-reinforced polymer/hybrid composites : a comprehensive analysis of machining-induced damage responses [PDF]

, 2018
This paper aims at investigating the effects of variable traverse speeds on machining-induced damage of fibre-reinforced composites, using the abrasive water jet (AWJ) drilling.
A Alberdi, A Alberdi, A Hascalik, A Hascalik, A Hejjaji, AA Shaikh, B KC, DF Liu, DJ McGill, DJ Thomas, DJ Thomas, E Oho, FA Almansour, FL Chen, G Fowler, H Heidarya, H Ho-Cheng, H Hocheng, HN Dhakal, HN Dhakal, Hom Nath Dhakal, I Shyha, J Flynn, J Montesano, James R. Smith, JC Crocker, JK Patel, K Phapale, M Ramulu, Marco Paggi, MM Thwe, MMW Irina, N Ramesha, NE Hajj, PD Unde, R Selvam, S Kalirasu, S Nunna, Saheed Olalekan Ojo, Sikiru Oluwarotimi Ismail, SO Ismail, SO Ismail, SO Ismail, SP Jani, YW Seo   +44 more
core   +3 more sources

Shale gas horizontal well geosteering technologies and countermeasures research in narrow and steep syncline formations of northern Guizhou area

地质科技通报, 2022
Northern Guizhou area is located at the edge of the Sichuan Basin, and its structure belongs to Wuling fold area. Wufeng Longmaxi shale stratum is in a series of narrow and steep residual synclines, and the main developed shale stratum is within five ...
Song Wu, Jiliang Yu, Shang Xu, Baofeng Lan, Long Li, Gangquan Li   +5 more
doaj   +1 more source

Power consumption of rock decomposition process during diamond core drilling using pulse flushing [PDF]

, 2018
Purpose. To study the impact of pulse flushing on the power consumption of rock decomposition during diamond core drilling. Methods. Theoretical analysis, processing of the obtained experimental data. Findings. The decrease in power consumption of rock
Dreus, A, Kozhevnykov, A
core   +1 more source

Seismic response to evolving injection at the Rotokawa geothermal field, New Zealand [PDF]

, 2020
Catalogs of microseismicity are routinely compiled at geothermal reservoirs and provide valuable insights into reservoir structure and fluid movement.
Hopp, C, Mroczek, S, Savage, M, Sewell, S, Townend, J   +4 more
core   +3 more sources

Design and experimental study of a tethered self-excavating drilling and coring scheme for lunar deep mining

Meitan kexue jishu
The development and utilization of lunar mineral resources is an important way to solve the earth’s energy crisis. Drilling and coring, an effective method for lunar section sample collection, is a key prerequisite for accurately identifying the ...
Mingzhong GAO, Jiahua LI, Haichun HAO, Jing XIE, Yuanru LI, Lang ZHOU, Zheng GAO, Yan WU, Bing JI, Zhipeng WANG, Xuemin ZHOU   +10 more
doaj   +1 more source

Real-Time Measurement of Drilling Fluid Rheological Properties: A Review

Sensors, 2021
The accurate and frequent measurement of the drilling fluid’s rheological properties is essential for proper hydraulic management. It is also important for intelligent drilling, providing drilling fluid data to establish the optimization model of the ...
Naipeng Liu, Di Zhang, Hui Gao, Yule Hu, Longchen Duan   +4 more
doaj   +1 more source

Sustainable production of organic wheat [PDF]

, 2006
The aim of the project is to use an ecological approach to analyse the interactions of a range of key agronomic variables in organic wheat production (wheat genotype, spatial arrangement of seed, seed density and wheat/white clover bi-cropping) to ...
Clarke, S, Haigh, Z E L, Hinchsliffe, K, Jones, H, Wolfe, M S   +4 more
core  

Diagnostic Utility of Testing for Novel Murine Autoantibodies for Sjögren's Disease in the Rheumatology Outpatient Setting

Arthritis Care &Research, Accepted Article.
Objective The goal was to assess the diagnostic performance of three novel autoantibodies (NA) for Sjögren's disease (SjD) by comparing NA prevalence in patients with SjD, other autoimmune rheumatic diseases (ARDs), nonspecific chronic sialadenitis (CS), and controls.
Chadwick R. Johr, Michael D. George, Vatinee Y. Bunya, Nora Sandorfi, Mina Massaro‐Giordano, Frederick B. Vivino   +5 more
wiley   +1 more source