Results 41 to 50 of about 11,928 (225)

Enhanced Rheological and Filtration Performance of Drilling Fluids Using Fe3O4/Saponin/Cu(II) Nanocomposites: Synthesis, Characterization, and Application

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Drilling fluids used in high‐performance well operations often struggle to maintain rheological stability, colloidal dispersion, and filtration control under harsh downhole conditions. This study engineered a multifunctional Fe3O4@Saponin/Cu(II) nanocomposite to address these challenges.
Kassem Al Attabi   +9 more
wiley   +1 more source

Wellbore stability in a depleted reservoir by finite element analysis of coupled thermo-poro-elastic units in an oilfield, SW Iran

open access: yesResults in Earth Sciences, 2023
Sustaining wellbore stability in depleted reservoirs is a crucial concern. With production from hydrocarbon reservoirs, the reservoir's pore pressure is reduced over time, and the reservoir is depleted since field development is one of the main purposes ...
Alireza Pirhadi   +3 more
doaj   +1 more source

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

3D finite element modelling of multilateral junction wellbore stability

open access: yesPetroleum Science, 2018
Wellbore failure can occur at different stages of operations. For example, wellbore collapse might happen during drilling and/or during production. The drilling process results in the removal of an already stressed rock material.
Assef Mohamad-Hussein, Juliane Heiland
doaj   +1 more source

Assessment and Evaluation of Sand Control Methods for a North Sea Field [PDF]

open access: yes, 2011
Imperial Users ...
Latiff, Amir, Latiff, Amir
core  

Experimental Analysis of Shale for Evaluating Shale Drilling Fluid Interaction in Agbada Formation [PDF]

open access: yes, 2014
Aims: To characterize the shale samples from Agbada formation and to develop an inhibitive water-based mud for the shale types. Study Design: Experimental.
Dosunmu, A., Okoro, Emeka Emmanuel
core   +1 more source

Effect of confining pressure on fracture characteristics and mineralogical behavior of tight sandstone specimens after hydraulic fracturing

open access: yesDeep Underground Science and Engineering, EarlyView.
Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
wiley   +1 more source

Geomechanics Analysis of Well Drilling Instability: A Review

open access: yesJournal of Engineering, 2023
Wellbore instability is a significant problem faced during drilling operations and causes loss of circulation, caving, stuck pipe, and well kick or blowout. These problems take extra time to treat and increase the Nonproductive Time (NPT).
Baraa Kadhum Edan   +1 more
doaj   +1 more source

Preliminary test on modified clays for seawater resistant drilling fluids [PDF]

open access: yes, 2015
The quality of a drilling fluid declines in salt water conditions. An engineered clay (HYPER clay) was developed for geosynthetic clay liners with enhanced resistance to aggressive conditions.
Bezuijen, Adam   +3 more
core  

Dynamic tensile strength and fracture evolution of characteristic shale with bedding and hole using linear regression theory

open access: yesDeep Underground Science and Engineering, EarlyView.
The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai   +7 more
wiley   +1 more source

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