Results 71 to 80 of about 10,595 (295)

Preparation and Performance Evaluation of a Self‐Generated Particle Plugging Agent Based on Thermosetting Resin

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT A thermosetting in situ curing resin microsphere system has been developed. It has controllable phase transition time and particle size. This system addresses the current challenges of low strength, shear susceptibility, and short phase transition time in polymer microsphere blockers and thermoplastic particle blockers.
Baolei Jiao   +5 more
wiley   +1 more source

On-Line Measurement Method for Rheology of Straight Tubular Oil-Based Drilling Fluid Under Pulsating Flow

open access: yesIEEE Access
With the rapid development of drilling automation, how to automate real-time online measure drilling fluid rheology accurately has become one of the problems that the industry urgently wants to solve.
Xueqiang Wang   +11 more
doaj   +1 more source

Formulation and Environmental Impact Evaluation of Walnut and Soya Bean Oil Based Drilling Fluid [PDF]

open access: yes, 2016
One of the oil and gas hazard that associated with drilling operation is oil based drilling fluid and its associated cutting disposition. It is highly imperative for policy maker to propagate the use of environmental friendly oil based mud for drilling ...
Gbadegesin, Adeyemi   +2 more
core  

Synergistic Physicochemical Inhibition of Reactive Shale Formations Using Hydrothermally Synthesized Hydroxyapatite Nickel Tungstate Nanocomposites in Water‐Based Drilling Fluids

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Wellbore instability driven by the volumetric expansion of reactive shale formations remains a primary operational challenge in modern drilling engineering, causing severe mechanical failures and substantial economic deficits. The objective of this study is to formulate and evaluate a novel dual‐action chemical additive capable of ...
Ghaleb Oriquat   +8 more
wiley   +1 more source

Oil-Based Drilling Fluid Technology for Ultra-Deep Extended Reach Wells in East China Sea

open access: yesZuanjingye yu wanjingye
Difficulties such as borehole wall instability, poor hole cleaning, drag encountered frequently during tripping due to high friction and torque, and difficult reaming, have been encountered in drilling operation in the Baoyunting block and the Pinghu ...
Yunhu SHE
doaj   +1 more source

The Influence of Drilling-Fluid Rheology on Cuttings-Bed Behavior [PDF]

open access: yes, 2018
Transporting cuttings out of the wellbore is an important part of every drilling operation to ensure efficiency and the reduction of non-productive time. The drilling fluids used for this task are complex fluid systems, generally with either oil or water
Werner, Benjamin
core   +1 more source

Catalytic Pyrolysis of Waste Polystyrene Over Fe–B Composite Catalyst for Enhanced Liquid Fuel Production

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Healthcare derived polystyrene waste represents a growing and under addressed fraction of plastic waste streams due to contamination risks and limited recyclability. This study aims to investigate the valorization of waste polystyrene foam through catalytic and noncatalytic pyrolysis pathways to evaluate product yield distribution and identify
Salman Khan   +4 more
wiley   +1 more source

Oil-Based Drilling Fluid Plugging Method for Strengthening Wellbore Stability of Shale Gas

open access: yes, 2021
Finding out the reasons for wellbore instability in the Longmaxi Formation and Wufeng Formation and putting forward drilling fluid technical countermeasures to strengthen and stabilize the wellbore are very crucial to horizontal drilling.
Zhengtao Li   +5 more
core   +1 more source

Fiber‐type soft bioelectronics for wearable and implantable sensing and therapy

open access: yesBMEMat, EarlyView.
Fiber‐type soft bioelectronics are emerging as versatile platforms for wearable and implantable health monitoring and therapeutic applications. These bioelectronics use organic and inorganic matrices combined with advanced fillers, which feature high conductivity, electrochemical sensitivity, softness, and biocompatibility.
Haneul Kim   +5 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

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