Results 21 to 30 of about 28,514,986 (248)

Improving gas bubbles’ half life in foam drilling fluid [PDF]

open access: yes, 2013
An underbalanced drilling using foam drilling fluid is one of the most effective solutions which are capable of preventing formation damage, differential sticking, or circulation lost.
Ismail, Ahmad Shamsulizwan   +6 more
core   +1 more source

Optimization of High Temperature-Resistant Modified Starch Polyamine Anti-Collapse Water-Based Drilling Fluid System for Deep Shale Reservoir

open access: yesMolecules, 2022
During drilling in deep shale gas reservoirs, drilling fluid losses, hole wall collapses, and additional problems occur frequently due to the development of natural fractures in the shale formation, resulting in a high number of engineering accidents ...
Xiangwei Kong   +7 more
doaj   +1 more source

Clean subglacial access: prospects for future deep hot-water drilling [PDF]

open access: yes, 2015
Accessing and sampling subglacial environments deep beneath the Antarctic Ice Sheet presents several challenges to existing drilling technologies. With over half of the ice sheet believed to be resting on a wet bed, drilling down to this environment must
Smith, Andrew   +38 more
core   +1 more source

An Experiment-Based Study of Formation Damage Using a Microetching Model Displacement Method

open access: yesMicromachines, 2022
In the field of oil and gas exploration, drilling fluid is regarded as the essential “blood” for drilling, which mainly helps to control the formation pressure and remove cuttings from the well.
Feng Wu   +7 more
doaj   +1 more source

Effect of Nanoparticles on Rheological Properties of Water-Based Drilling Fluid

open access: yesNanomaterials, 2023
Nano-water-based drilling fluids (NWBDFs) are prepared using nano-copper oxide (CuO) and multiwalled carbon nanotubes (MWCNTs) as modification materials. The effects of the temperature and concentration of the nanoparticles (NPs) on the rheological properties are studied using a rotational rheometer and viscometer. Also, the influence of two NPs on the
Yuan Lin   +5 more
openaire   +3 more sources

Drilling intake wells in carbonate formations to provide water for drilling purposes [PDF]

open access: yes, 2020
The realization of drilling works oriented towards the prospection and extraction of hydrocarbons from conventional and unconventional resources requires the supply of large amounts of water for technological purposes and fracturing jobs in shale ...
Łukańko, Łukasz, Macuda, Jan
core   +1 more source

Standard and experimental drilling fluids’ effect on the response of the larvae of bivalve Hiatella sp. [PDF]

open access: yesBIO Web of Conferences
Behavior of the larvae of common genus of marine bivalve mollusk Hiatella sp. was tested at the presence of the standard drilling fluid and the water-based drilling fluid containing brown alga Saccharina latissima as biodegradable component.
Malavenda Sergey   +2 more
doaj   +1 more source

Study on permeability law of water-based polymer drilling fluid containing CaCl2 in wellbore formation

open access: yes地质科技通报, 2021
The use of microbially induced carbonate precipitation (MICP) technology to improve the cementation quality of oil and gas well cementing has attracted more and more attention in recent years.
Tianle Liu   +5 more
doaj   +1 more source

Formulation and Study of an Environmentally Friendly Microemulsion-Based Drilling Fluid (O/W) with Pine Oil

open access: yesEnergies, 2021
This work has developed and evaluated a microemulsion-based drilling fluid formulation with characteristics to be applied in oil wells. The microemulsion was formulated with a solution of water/glycerol, pine oil, and Tween 80, a nonionic and ...
Roxana P. F. de Sousa   +7 more
doaj   +1 more source

Study of Cuttings Transport Using Water-Based and Oil-Based Drilling Fluids [PDF]

open access: yes, 2018
Cuttings transport is a topic of great interest in the oil and gas drilling industry. Insufficient cuttings transport leads to several expensive problems.
Sayindla, Sneha
core   +1 more source

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