Emulsions of glycerol in olefin: A critical evaluation for application in oil well drilling fluids

Fuel ◽  
2022 ◽  
Vol 308 ◽  
pp. 121959
Author(s):  
Karoline Nóbrega Celino ◽  
Elessandre Alves de Souza ◽  
Rosangela de Carvalho Balaban
Keyword(s):  
Critical Evaluation ◽  
Drilling Fluids ◽  
Oil Well ◽  
Well Drilling

scholarly journals Study on the stability of a shear-thinning suspension used in oil well drilling

2018 ◽  
Vol 73 ◽  
pp. 10 ◽  
Author(s):  
Flávia M. Fagundes ◽  
Nara B.C. Santos ◽  
João Jorge R. Damasceno ◽  
Fábio O. Arouca
Keyword(s):  
Gamma Ray ◽  
Drilling Fluid ◽  
Shear Thinning ◽  
Drilling Fluids ◽  
Oil Well ◽  
Drilling Process ◽  
Well Drilling ◽  
Constant Rate ◽  
The Stability ◽  
Solid Liquid

In order to avoid solid-liquid gravitational separation of particles in the drilling fluid and cuttings generated in this process, the oil industry has been developing drilling fluids with shear-thinning and thixotropic characteristics. In case of operational stops in the drilling process, the intense sedimentation of these particles can damage the equipment used and the well. In this context, this study simulated an operational stop to obtain information about stability of solids in a paraffin-based suspension with time-dependent shear-thinning behavior, which has already been used in current drilling processes. A long-term test using gamma-ray attenuation technique identified the separation dynamics of a set of micrometric particles belonging to and incorporated into the drilling fluid during operation. This test verified the typical regions of gravitational sedimentation and, through constant concentration curves, indicated that the sedimentation process did not occur at a constant rate. This study also proposed a constitutive equation for pressure on solids.

scholarly journals Propylene glycol mono and di stearates as water in oil emulsifiers for oil-well drilling fluids

2018 ◽  
Vol 27 (4) ◽  
pp. 1035-1041
Author(s):  
M.M. Dardir ◽  
Hany Elsayed Ahmed ◽  
M. Abd El Fattah ◽  
Mohammed Ezz El Din Rashad Hassan ◽  
Hesham Abu Seda ◽  
...  
Keyword(s):  
Propylene Glycol ◽  
Drilling Fluids ◽  
Oil Well ◽  
Well Drilling

Evaluation of Constitutive Equation for Stress in Solids in Porous Media Composed of Bridging Agents Used in Drilling Fluids

2012 ◽  
Vol 727-728 ◽  
pp. 1878-1883 ◽  
Author(s):  
Bruno Arantes Moreira ◽  
Flávia Cristina Assis Silva ◽  
Larissa dos Santos Sousa ◽  
Fábio de Oliveira Arouca ◽  
João Jorge Ribeiro Damasceno
Keyword(s):  
Porous Media ◽  
Constitutive Equation ◽  
Filter Cake ◽  
Drilling Fluid ◽  
Fluid Loss ◽  
Drilling Fluids ◽  
Oil Well ◽  
Well Drilling ◽  
Drilling Operations ◽  
The Stability

During oil well drilling processes in reservoir-rocks, the drilling fluid invades the formation, forming a layer of particles called filter cake. The formation of a thin filter cake and low permeability helps to control the drilling operation, ensuring the stability of the well and reducing the fluid loss of the liquid phase in the interior of the rocks. The empirical determination of the constitutive equation for the stress in solids is essential to evaluate the filtration and filter cake formation in drilling operations, enabling the operation simulation. In this context, this study aims to evaluate the relationship between the porosity and stress in solids of porous media composed of bridging agents used in drilling fluids. The concentration distribution in sediments was determined using a non-destructive technique based on the measure of attenuated gamma rays. The procedure employed in this study avoids the use of compression-permeability cell for the sediment characterization.

Sedimentation of solids in drilling fluids used in oil well drilling operations

2018 ◽  
Vol 162 ◽  
pp. 137-142 ◽  
Author(s):  
Nara Brandão Costa Santos ◽  
Flávia Marques Fagundes ◽  
Fábio de Oliveira Arouca ◽  
João Jorge Ribeiro Damasceno
Keyword(s):  
Drilling Fluids ◽  
Oil Well ◽  
Well Drilling ◽  
Drilling Operations

scholarly journals Rheological Characterization of Bentonite Dispersions with Xanthan for Oil Well Drilling Fluids

2017 ◽  
Vol 20 (suppl 2) ◽  
pp. 159-166 ◽  
Author(s):  
Gabriel Sahade de Souza ◽  
Samuel Luporini ◽  
Isabel Cristina Rigoli
Keyword(s):  
Drilling Fluids ◽  
Oil Well ◽  
Rheological Characterization ◽  
Well Drilling

scholarly journals High performance nature of biodegradable polymeric nanocomposites for oil-well drilling fluids

2016 ◽  
Vol 25 (2) ◽  
pp. 281-291 ◽  
Author(s):  
Tarek M. Madkour ◽  
Samar Fadl ◽  
M.M. Dardir ◽  
Mohamed A. Mekewi
Keyword(s):  
High Performance ◽  
Drilling Fluids ◽  
Oil Well ◽  
Polymeric Nanocomposites ◽  
Well Drilling

Fundamentals of Microwave Heating and Drying of Drilled Cuttings

2017 ◽  
Vol 899 ◽  
pp. 528-533 ◽  
Author(s):  
Arley Silva Rossi ◽  
Marina Seixas Pereira ◽  
Jéssika Marina dos Santos ◽  
Irineu Petri Jr. ◽  
Carlos Henrique Ataíde
Keyword(s):  
Microwave Heating ◽  
Drilling Fluid ◽  
Microwave Drying ◽  
Drilling Fluids ◽  
Oil Well ◽  
Environmental Legislation ◽  
Well Drilling ◽  
Alternative Technologies ◽  
Drilling Operations ◽  
Kinetics Of

Drilled cuttings contaminated by non aqueous drilling fluids are the major waste from oil well drilling activities. More restrictive environmental legislation has led to the search for alternative technologies to promote cuttings decontamination according to the law. The mixture of cuttings and fluid returning from the well goes through a set of separation equipments, called solids control systems, in order to recover the drilling fluid for reuse. The cuttings from the solids control system must be decontaminated before they can be discharged into the sea. Microwave heating has been studied over the past few years as an alternative to promote the decontamination of this waste and has been shown to be a promising technology. This work aimed to investigate fundamental aspects of microwave heating and drying of drilled cuttings. The heating curve of two different drilling fluids commonly employed in well-drilling operations was obtained. The kinetics of drying of cuttings contaminated with these drilling fluids was also investigated. It was evaluated the behavior of organic phase and water removal in the microwave drying process.

Hydrogen Bonds-Enhanced Organoclay-Free Oil Based Drilling Fluid System

2017 ◽  
Vol 890 ◽  
pp. 227-234
Author(s):  
Xian Bin Huang ◽  
Guan Cheng Jiang
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Drilling Fluid ◽  
Control Agent ◽  
Drilling Fluids ◽  
Oil Well ◽  
Drilling Process ◽  
Well Drilling ◽  
Filtration Loss ◽  
Organophilic Clay

Conventional oil based drilling fluids or muds (OBMs) using organophilic clay as viscosifier and rheological control agent cannot carry drill cuttings and suspend weighting materials effectively in oil well drilling process. It also causes excessive viscosity of drilling fluids, which lowers the rate of penetration. For the sake of solving these problems, in this study, hydrogen bonds-enhanced organoclay-free oil based drilling fluid was proposed. Firstly key additives (emulsifier, filter reducer) for OBMs with highly electronegative groups that might form hydrogen bonds were synthesized. In addition, a hydrogen bonding linker was synthesized and used to connect other additives to form a hydrogen bonding network in OBMs. The properties of drilling fluids were characterized by rheological measurements, static filtration experiments and plugging experiments. Experimental results show that, compared with the conventional OBM, the hydrogen bonds-enhanced organoclay-free OBMs substantially increased yield point (YP) and gel strengths, reduced filtration loss and exhibited a better plugging ability on high-permeability sand cores. Besides, a higher stability was also observed.

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