Results 1 to 10 of about 678 (113)
A new type of whole oil-based drilling fluid
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
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 +3 more sources
A high-density organoclay-free oil base drilling fluid based on supramolecular chemistry
: 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]
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
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
Application of Organoclays in Oil-Based Drilling Fluids: A Review
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
Rheological Compatibility of a Hardening Spacer Fluid and Oil-Based Drilling Fluid
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
Intelligent unconventional reservoir optimal production control technology is a comprehensive technology, involving geology, reservoir simulation, and efficient drilling and completion.
Dewei Gao +5 more
doaj +1 more source
Super-amphiphobic, strong self-cleaning and high-efficiency water-based drilling fluids
Based on the amphiphobic theory on underground rock surface, a super-amphiphobic agent is developed and evaluated which can form nano-micro papilla structure on rock, filter cake and metal surface, reduce surface free energy, prevent collapse, protect ...
Guancheng JIANG +4 more
doaj +1 more source
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

