Effect of Carboxy Methyl Cellulose and Determination of Pore Throat Criteria for Water-based Drilling Fluids

In this research, the effect of carboxy methyl cellulose (CMC) on the rheological properties of two different water-based drilling fluids was studied. It was observed that the fluid loss decreased as CMC concentration increased, but the rate of decrease was too low to notice after 1 gr. CMC. It was also observed that shear stress increased as the CMC concentration increased. Experimentally, it was observed that 1 gr. CMC/350 ml of drilling fluid slurry is sufficiently appropriate for optimum rheological efficiency. The pore throat plugging criteria for the two drilling fluids was studied and conditions leading to perforation, pore plugging, and development of empirical correlations for the plugging criteria was determined.


Characterization of lignocellulose biomass and model compounds by thermogravimetry
Kök, Mustafa Verşan (Informa UK Limited, 2017-01-01)
In this research, combustion characteristics of lignocellulose biomass (hazelnut shell) and three main components (cellulose, hemicellulose, and lignin) were investigated using thermogravimetry (TGA-DTG) technique at different heating rates. The ignition, peak, burn-out temperatures, and the heat liberation of lignocellulose biomass and three main components were also measured. Two different model-free kinetic methods, known as Ozawa-Flynn-Wall (OFW) and Kissinger-Akahira-Sunose (KAS), were used in order to...
Effect of PTFE nanoparticles in catalyst layer with high Pt loading on PEM fuel cell performance
Avcioglu, Gokce S.; FIÇICILAR, BERKER; Eroğlu, İnci (Elsevier BV, 2016-06-22)
In this study, Polytetrafluoroethylene (PTFE) was added to catalyst layer structure. This modification was aimed at facilitating excess water removal from the cathode catalyst layer with high Pt loading (1.2 mg/cm(2)). The weight percentage of PTFE in the catalyst inks varied from zero to 30. Membrane electrode assemblies were prepared with a commercial catalyst containing 70 wt % Pt on carbon, by ultrasonic spray coating technique. PEM fuel cell performance testing was carried out with two different membra...
Analytical and Numerical Modeling of CO2 Sequestration in Deep Saline Aquifers
Ozgur, E.; Gumrah, F. (Informa UK Limited, 2010-01-01)
The analytical and numerical modeling of CO2 sequestration in deep saline aquifers having different rock and fluid properties was studied under diffusion and convection mechanisms. In a diffusion dominated system, an aquifer with 100 m thickness was saturated with CO2 after 10,000,000 years. It was much earlier in a convective dominant system. In the diffusion process, the dissolution of CO2 in aquifer increased with porosity increase; however, in a convection dominant process dissolution of CO2 in aquifer ...
Effects of minerals on steam distillation during thermal heavy-oil recovery: An experimental investigation
Osgouei, Yashar Tavakkoli; Parlaktuna, Mahmut (Informa UK Limited, 2018-01-01)
An experimental study was carried out to investigate the role of various clay and non-clay minerals present in reservoir formations on steam distillation process. Dead oil samples (100 g) of two heavy oil reservoirs with 30 g of water and 10 g of crushed rock mixed with different clay minerals were kept under steam pressure with 150, 200, and 250 degrees C in a batch autoclave reactor for a period of 40 hours, and the results were compared with respect to the changes in the density, viscosity and chemical c...
Effect of clay content on combustion reaction parameters
Bağcı, Ali Suat (Informa UK Limited, 2005-04-15)
The role of clay in reservoirs and its possible influence oil kinetics of crude oil burning is not entirely clear However, it is known that (1) clay fractions of the reservoir matrix possess the highest surface area per gram, (2) clay fractions are the most chemically reactive of the inorganic constituents present in the reservoir and (3) clay minerals generally possess catalytic properties toward various organic liquids. This study was aimed to investigate the role of clay on thermo-oxidative behavior of c...
Citation Formats
M. V. Kök, “Effect of Carboxy Methyl Cellulose and Determination of Pore Throat Criteria for Water-based Drilling Fluids,” ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, pp. 396–405, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40153.