Results 81 to 90 of about 24,031,090 (295)

Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne   +6 more
wiley   +1 more source

STUDY OF SESAME OIL AS OIL BASED FLUID IN DRILLING OPERATION [PDF]

open access: yes, 2012
Drilling fluid is a critical component in the drilling process, where it facilitates to efficiently lift cuttings, maintain stable wellbore and produce sufficient hydrostatic pressure that could prevent the influx of formation fluids into the wellbore. .
MUHAMMAD ZAHIN BIN ABD RAZAK, MUHAMMAD ZAHIN
core  

Electrokinetic Stabilization of Formation Fines Using Surface Modified Polymer Silica Nanocomposites During Low Salinity Water Flooding for Enhanced Oil Recovery

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Fines migration induced by low salinity water flooding severely impairs reservoir permeability and injectivity presenting a critical challenge in enhanced oil recovery. This study aims to synthesize and evaluate a surface‐modified polymer‐silica nanocomposite to mitigate clay mobilization and preserve the hydrodynamic capacity of porous media.
Mohamed Abu Shuheil   +8 more
wiley   +1 more source

Drilling Fluid Technology for the Deepest Vertical Well in Asia – The Ultra-Deep Well Pengshen-6

open access: yesZuanjingye yu wanjingye
Well Pengshen-6, a six-interval well with a total depth of 9,026 m, is a key exploration well deployed by the PetroChina Southwest Oil & Gasfield Company. The projected reservoir is mainly the Dengying Formation in the Sinian System.
Yi XU   +6 more
doaj   +1 more source

Biodiversity Strategies in Action—Empirical Evidence From the Food Value Chain

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT There is an increasing need for better understanding of firm activities that contribute to biodiversity preservation. Panwar, Ober, and Pinkse offer a valuable typology of corporate biodiversity protection strategies based on temporal and spatial dimensions, namely, the preloss (proactive) strategies of conservation and compensation, and the ...
Joanna Scott‐Kennel   +2 more
wiley   +1 more source

Investigation on the propagation characteristics of pressure wave during managed pressure drilling

open access: yesFrontiers in Energy Research
The small difference between formation pressure and fracture pressure in offshore oil and gas reservoirs poses a huge challenge to drilling. Managed pressure drilling (MPD) technology, as a drilling technique that can accurately control bottomhole ...
Yanan Hou   +9 more
doaj   +1 more source

Plugging technology applied for total loss in shale gas wells of Lower Yangtze Region:Taking Well-WY-1HF as an example

open access: yesYouqicang pingjia yu kaifa, 2021
At present,the leakage of shale gas drilling is quite common in China,and there are few plugging methods suitable for oil-based drilling fluid.The total loss of drilling fluid is still a difficult problem for technicians in the industry.Taking the field ...
LI Dayong   +5 more
doaj  

Public Emotions and Climate Change Awareness: Understanding Shifting Perceptions for Sustainable Futures

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Understanding the evolving emotional landscape surrounding climate change is critical for developing effective environmental strategies and communication. This study offers an analysis of public emotions toward human‐induced climate change by leveraging big data analytics and machine learning techniques on social media content from platform X.
Qingfeng Tian   +5 more
wiley   +1 more source

Main progress and development direction of shale gas drilling and completion technologies in southeastern Chongqing

open access: yesYouqicang pingjia yu kaifa, 2021
Southeastern Chongqing is the first area to realize commercial development of shale gas in China. According to the main development progress of drilling and completion technologies in this area, 10 key technologies are summarized, which are, casing ...
WANG Yanqi, HE Qing, LONG Zhiping
doaj  

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