Results 11 to 20 of about 126,181 (293)

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 ...
Adesina, F. C.   +2 more
core   +1 more source

The experimental assessment and study of ubi kayu starch as fluid loss control agent in water based drilling fluids [PDF]

open access: yes, 2016
The efficiency of a drilling mud, particularly the additives is valued by standard measurement of specific characteristics of the formation. This study presents an investigation on ubi kayu starch as a fluid loss control agent in water-based drilling mud
Abdullah, Norhafizah, Samavati, Raheleh
core   +1 more source

Effect of Nitric Acid on the Low Fluorescing Performance of Drilling Fluid Lubricant Based Animal and Vegetable Oils

open access: yesJournal of Spectroscopy, 2013
After synthesis of mixed fatty acid triethanolamine ester surfactant based on animal and vegetable mixed oils, the reaction solution was added into 4% (wt/wt) liquid nitric acid or 9% (wt/wt) solid nitric acid as eliminating fluorescent agent continuing ...
Feng-shan Zhou   +6 more
doaj   +1 more source

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

open access: yes, 2020
Catalogs of microseismicity are routinely compiled at geothermal reservoirs and provide valuable insights into reservoir structure and fluid movement.
Hopp, C   +4 more
core   +3 more sources

Study on the Low-Temperature Rheology of Polar Drilling Fluid and Its Regulation Method

open access: yesGels, 2023
Drilling fluid is the blood of drilling engineering. In the polar drilling process, the ultra-low temperature environment puts high demands on the rheological performance of drilling fluids.
Ning Huang   +5 more
doaj   +1 more source

Research on the mixed-mode fracture damage characteristics of shale soaked in different drilling fluids

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023
Drilling fluid is a vital component in drilling engineering and can be considered as the lifeblood of the drilling. It serves multiple functions such as cooling the drill bit, cleaning the wellbore, and maintaining wellbore stability.
Yu Suo   +4 more
doaj   +1 more source

Soluble pozzolanic materials from coal bottom ash as cement replacement material [PDF]

open access: yes, 2021
Nowadays, intensive research in production of highly reactive pozzolanic materials from industrial waste to replace cement is crucial. This action expected to increase industrial waste recycling rate and at the same time reduce extraction of non ...
Abd Wahab, Azrina   +3 more
core   +1 more source

Effective Photocatalytic Degradation of Methyl Orange Using V2O5@ZnO Nanocomposite under UV and Visible Irradiations

open access: yesInternational Journal of Electrochemical Science, 2020
Today, reclamation and reuse of wastewater from textile, food and pharmaceutical industries are the big challenges for researchers to decrease the diseases and pollution in the world.
Dichen Tan   +6 more
doaj   +1 more source

Integrity Experiments for Geological Carbon Storage (GCS) in Depleted Hydrocarbon Reservoirs: Wellbore Components under Cyclic CO2 Injection Conditions

open access: yesEnergies
Integrity of wellbores and near wellbore processes are crucial issues in geological carbon storage (GCS) projects as they both define the confinement and injectivity of CO2. For the proper confinement of CO2, any flow of CO2 along the wellbore trajectory
Taofik H. Nassan   +8 more
doaj   +1 more source

Assessment of zonal isolation risk to changes in design parameters [PDF]

open access: yes, 2017
The Well Containment Screening Tool (WCST) focuses on well integrity evaluation after well control incident. The WCST favors a greater wall thickness and, hence, a narrower cementing annulus, potentially increasing the risk of cement loss.
Zhang, Huidong, active 21st century
core   +1 more source

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