Results 1 to 10 of about 4,423 (160)

A new type of whole oil-based drilling fluid

open access: yesPetroleum Exploration and Development, 2014
To meet the demand of ultra-deep well drilling and shale gas well drilling, organic clay and a oil-based filtrate reducer were developed and a whole oil-based drilling fluid formula was optimized.
Jiancheng LI   +5 more
doaj   +4 more sources

Experimental Investigation of the Rheological Behavior of an Oil-Based Drilling Fluid with Rheology Modifier and Oil Wetter Additives [PDF]

open access: yesMolecules, 2021
Drilling issues such as shale hydration, high-temperature tolerance, torque and drag are often resolved by applying an appropriate drilling fluid formulation.
Mobeen Murtaza   +5 more
doaj   +4 more sources

Formation protection method of oil‐based drilling fluid for deep fractured tight gas reservoir

open access: yesEnergy Science & Engineering, 2020
Deep fractured tight gas reservoirs have attracted more and more attention worldwide, which also promotes the large‐scale application of oil‐based drilling fluids.
Xiao Guo   +5 more
doaj   +2 more sources

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   +3 more sources

A high-density organoclay-free oil base drilling fluid based on supramolecular chemistry

open access: yesPetroleum Exploration and Development, 2016
: Based on supramolecular chemistry, a rheology modifier CFZTQ-1 for oil base drilling fluids was developed, and an innovative high-density organoclay-free oil base drilling fluid system centering on CFZTQ-1 was designed, evaluated and applied in the ...
Guancheng JIANG   +4 more
doaj   +3 more sources

Deepwater Oil-Based Drilling Fluid Systembased on Grey Wolf Optimized BP neural network [PDF]

open access: yesE3S Web of Conferences, 2022
In this paper, a BP neural network model with 5-9-6 structure is constructed according to various fault gases and different fault types ofWater-based drilling fluid and synthetic-based drilling fluid.
Sui Dianjie   +4 more
doaj   +1 more source

Invasion Analysis of Oil-Based Drilling Fluid Based on NMR Experiment

open access: yesCejing jishu, 2023
In order to clarify the intrusion characteristics of deep and ultra-deep oil-based drilling fluids in the southern margin of Junggar basin and its influence on nuclear magnetic resonance (NMR) logging, NMR experiments are conducted to analyze the ...
LIN Jingqi   +5 more
doaj   +1 more source

Rheological Compatibility of a Hardening Spacer Fluid and Oil-Based Drilling Fluid

open access: yesSPE Journal, 2023
Summary In the placement process of the cement slurry, treatment fluids such as the spacer are pumped ahead of the cementitious slurry to minimize the contamination of the slurry by drilling fluid and ensure superior bonding to the casing and formation.
P. Khalili   +3 more
openaire   +2 more sources

Application of Organoclays in Oil-Based Drilling Fluids: A Review

open access: yesACS Omega, 2023
Organoclays (OCs), formed by surface modification of clay minerals using organic compounds, are typical additives for providing rheology for oil-based drilling fluids (OBDFs). There are different studies on the effect of OCs on the rheological properties of oil-based systems under high-pressure, high-temperature (HPHT) conditions, but finding new OCs ...
Ali Mahmoud   +2 more
openaire   +2 more sources

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