Dynamic Filtration Properties of Clay Based Drilling Muds under Elevated Temperatures

2012 ◽  
Author(s):  
Mustafa Hakan Ozyurtkan ◽  
Gursat Altun ◽  
Ali Ettehadi Osgouei ◽  
Eda Aydilsiz
Keyword(s):  
Elevated Temperatures ◽  
Dynamic Filtration ◽  
Drilling Muds ◽  
Filtration Properties

scholarly journals THE INFLUENCE OF TIO2 AND SIO2 NANOPARTICLES ON FILTRATION PROPERTIES OF DRILLING MUDS

2019 ◽  
Vol 34 (4) ◽  
pp. 67-77 ◽  
Author(s):  
Petar Mijić ◽  
◽  
Nediljka Gaurina-Međimurec ◽  
Borivoje Pašić ◽  
Igor Medved ◽  
...  
Keyword(s):  
Sio2 Nanoparticles ◽  
Drilling Muds ◽  
Filtration Properties

scholarly journals Static and Dynamic Filtration Properties of Aqueous Suspensions of Clays and Electrolytes

1997 ◽  
Vol 52 (2) ◽  
pp. 207-218 ◽  
Author(s):  
J. Durrieu ◽  
J. F. Argillier ◽  
E. Rosenberg ◽  
Y. Li
Keyword(s):  
Aqueous Suspensions ◽  
Dynamic Filtration ◽  
Filtration Properties

scholarly journals Synergetic Effects of Graphene Nanoplatelets/Tapioca Starch on Water-Based Drilling Muds: Enhancements in Rheological and Filtration Characteristics

Polymers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2655
Author(s):  
Maqsood Ahmad ◽  
Imtiaz Ali ◽  
Muhammad Syahmi Bins Safri ◽  
Mohammad Arif Izzuddin Bin Mohammad Faiz ◽  
Asif Zamir
Keyword(s):  
Yield Point ◽  
Morphological Changes ◽  
Plastic Viscosity ◽  
Fluid Loss ◽  
Tapioca Starch ◽  
Water Based ◽  
Higher Temperature ◽  
Drilling Muds ◽  
Filtration Properties ◽  
Fesem Micrographs

Several borehole problems are encountered during drilling a well due to improper mud design. These problems are directly associated with the rheological and filtration properties of the fluid used during drilling. Thus, it is important to investigate the mud rheological and filtration characteristics of water-based drilling muds (WBMs). Several materials have been examined but due to the higher temperature conditions of wells, such materials have degraded and lost their primary functions. In this research, an attempt was made to prepare a water-based mud by utilizing graphene nano platelets (GNP) in addition to the native tapioca starch at different ratios. The combined effect of starch and graphene nano platelets has been investigated in terms of mud’s rheological and filtration parameters, including its plastic viscosity (PV), yield point (YP), fluid loss volume (FLV) and filtercake thickness (FCT). The morphological changes in the filtercake have also been observed using Field Emission Scanning Electron Microscope (FESEM) micrographs. Plastic viscosity was increased from 18–35 cP, 22–31 cP and 21–28 cP for 68 °F, 250 °F and 300 °F, respectively. The yield point was also enhanced from 22–37 lb/100ft2, 26–41 lb/100ft2 and 24–31 lb/100ft2 at the studied range. The fluid loss was dramatically reduced from 14.5–6.5 mL, 17.3–7.5 mL and 36–9.5 mL at 68 °F, 250 °F and 300 °F respectively. Similarly, filtercake thickness was also reduced which was further illustrated by filtercake morphology.

scholarly journals The effect of nanoparticles additives on filtration properties of drilling muds with microparticles

2018 ◽  
Vol 1105 ◽  
pp. 012127
Author(s):  
E I Mikhienkova ◽  
A V Minakov ◽  
V A Zhigarev ◽  
A V Matveev
Keyword(s):  
Drilling Muds ◽  
Filtration Properties

scholarly journals A Novel Amphoteric Polymer as a Rheology Enhancer and Fluid-Loss Control Agent for Water-Based Drilling Muds at Elevated Temperatures

ACS Omega ◽  
2020 ◽  
Vol 5 (15) ◽  
pp. 8483-8495 ◽  
Author(s):  
Bahati Adnan Hamad ◽  
Miao He ◽  
Mingbiao Xu ◽  
Weihong Liu ◽  
Musa Mpelwa ◽  
...  
Keyword(s):  
Elevated Temperatures ◽  
Control Agent ◽  
Fluid Loss ◽  
Water Based ◽  
Drilling Muds ◽  
Loss Control

scholarly journals TECHNOLOGIES OF EXPOSING THE VALANGIAN DEPOSITS

2016 ◽  
pp. 63-66
Author(s):  
E. V. Panikarovski ◽  
V. V. Panikarovski
Keyword(s):  
Accident Rate ◽  
High Quality ◽  
Drilling Operations ◽  
Water Base ◽  
Drilling Muds ◽  
Filtration Properties

The problems arising when drilling horizontal and gently sloping wells in the Valanginian deposits are considered. The analysis of technologies of drilling-in the Valanginian reservoirs by sideholes using water-base clay drilling muds and the aerated muds ensuring the high-quality exposure of productive layers is carried out. The most perspective for drilling side holes of wells in these conditions are hydrocarbon-base drilling muds which maintain the filtration properties of productive layers and reduce the accident rate of drilling operations.

Characterization of Rare-Earth Fluoride Anti-Stokes Phosphors by Scanning arid Transmission Electron Microscopy

1971 ◽  
Vol 29 ◽  
pp. 142-143
Author(s):  
N. M. P. Low ◽  
L. E. Brosselard
Keyword(s):  
Electron Microscopy ◽  
Rare Earth ◽  
Elevated Temperatures ◽  
Stoichiometric Composition ◽  
Rare Earth Ions ◽  
Crystalline Solid ◽  
Precipitation Process ◽  
Rare Earth Fluoride ◽  
Earth Fluoride ◽  
Rare Earth Fluorides

There has been considerable interest over the past several years in materials capable of converting infrared radiation to visible light by means of sequential excitation in two or more steps. Several rare-earth trifluorides (LaF3, YF3, GdF3, and LuF3) containing a small amount of other trivalent rare-earth ions (Yb3+ and Er3+, or Ho3+, or Tm3+) have been found to exhibit such phenomenon. The methods of preparation of these rare-earth fluorides in the crystalline solid form generally involve a co-precipitation process and a subsequent solid state reaction at elevated temperatures. This investigation was undertaken to examine the morphological features of both the precipitated and the thermally treated fluoride powders by both transmission and scanning electron microscopy.Rare-earth oxides of stoichiometric composition were dissolved in nitric acid and the mixed rare-earth fluoride was then coprecipitated out as fine granules by the addition of excess hydrofluoric acid. The precipitated rare-earth fluorides were washed with water, separated from the aqueous solution, and oven-dried.

Observations oh Nucleation and Growth of Voids in Nickel

1970 ◽  
Vol 28 ◽  
pp. 414-415
Author(s):  
J. L. Brimhall ◽  
H. E. Kissinger ◽  
B. Mastel
Keyword(s):  
High Purity ◽  
Growth Stage ◽  
Elevated Temperatures ◽  
Early Growth ◽  
Nucleation And Growth ◽  
Pure Nickel ◽  
Different Temperatures ◽  
Total Fluence ◽  
Neutron Exposure ◽  
Growth Of Voids

Some information on the size and density of voids that develop in several high purity metals and alloys during irradiation with neutrons at elevated temperatures has been reported as a function of irradiation parameters. An area of particular interest is the nucleation and early growth stage of voids. It is the purpose of this paper to describe the microstructure in high purity nickel after irradiation to a very low but constant neutron exposure at three different temperatures.Annealed specimens of 99-997% pure nickel in the form of foils 75μ thick were irradiated in a capsule to a total fluence of 2.2 × 1019 n/cm2 (E > 1.0 MeV). The capsule consisted of three temperature zones maintained by heaters and monitored by thermocouples at 350, 400, and 450°C, respectively. The temperature was automatically dropped to 60°C while the reactor was down.

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