Silica sand enhanced cement mortar for cementing steam injection well up to 380 °C

2021 ◽  
Vol 308 ◽  
pp. 125142
Author(s):  
Huajie Liu ◽  
Yuhuan Bu ◽  
Annan Zhou ◽  
Jiapei Du ◽  
Linwei Zhou ◽  
...  
Keyword(s):  
Cement Mortar ◽  
Steam Injection ◽  
Injection Well ◽  
Silica Sand

scholarly journals The Effect of Silica Sand Proportion in Laser Scabbling Process on Cement Mortar

Metals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1914
Author(s):  
Tam-Van Huynh ◽  
Youngjin Seo ◽  
Dongkyoung Lee
Keyword(s):  
Cement Mortar ◽  
Silica Sand ◽  
Construction Sites ◽  
Power Laser ◽  
Concrete Repair ◽  
X Ray ◽  
Micro Cracks ◽  
Wide Range ◽  
Cement Based Materials ◽  
Composition Changes

Cement mortar composite has a wide range of applications on construction sites, including masonry, plastering and concrete repair. In construction sites, scabbling process is a method to remove from a few millimeters to several centimeters of defect concrete surfaces. As a result, it is essential to investigate the scabbling characteristics for cement mortar with different silica sand proportion in laser scabbling process. In this study, 5 types of cement mortar with different silica sand proportions in mixing were fabricated and scabbled by using a high-density power laser beam. The effects of silica sand proportion in color changing and penetration depth of the samples after laser scabbling process were studied. Furthermore, the generation of micro-cracks and pores were observed by using scanning electron microscopy (SEM). In addition, chemical composition changes between processed zone and non-processed zone were also evaluated by Energy Dispersive X-ray (EDX) analysis. The results of this study are expected to provide valuable knowledge in understanding of the laser scabbling process for cement-based materials.

Evaluation of Specialized Cement System for Long-Term Steam Injection Well Integrity

2010 ◽  
Author(s):  
Elena M. Pershikova ◽  
Alice Chougnet ◽  
Anthony Loiseau ◽  
Walid Khater ◽  
Andre Garnier
Keyword(s):  
Steam Injection ◽  
Injection Well ◽  
Well Integrity ◽  
Cement System

scholarly journals EXPERIENCE OF RESEARCHES OF CEMENT BASED MATERIALS FOR STEAM INJECTION WELL CEMENTING

2020 ◽  
Vol 18 (3) ◽  
pp. 22
Author(s):  
F.A. Agzamov ◽  
A.D. Akhmetzyanov ◽  
S.F. Komleva
Keyword(s):  
Steam Injection ◽  
Injection Well ◽  
Cement Based Materials

Local Silica Sand as a Substitute for Standard Ottawa Sand in Testing of Cement Mortar

2020 ◽  
Vol 1000 ◽  
pp. 220-226
Author(s):  
Wieke Pratiwi ◽  
Gaos Abdul Karim ◽  
Titi Rachmawati
Keyword(s):  
Quality Control ◽  
Compressive Strength ◽  
Cement Mortar ◽  
Silica Content ◽  
Sem Analysis ◽  
Silica Sand ◽  
Ottawa Sand ◽  
South Sulawesi ◽  
Good Potential

Compressive strength of cement mortar is an important parameter in the quality control of Portland cement. The limitation of Ottawa sand imports has prompted a study on the potential and utilization of local silica sand available in several regions in Indonesia. The purpose of this study was to investigate the potential and possibility of utilizing local silica sand from several regions in Indonesia including Bangka, Belitung, Sidrap (South Sulawesi Province) as a substitute for standard Ottawa sand in cement mortar testing. Evaluation of local silica sands consisted of SEM analysis, characterization of silica sands and testing of cement mortar compressive strength. Silica sands from Bangka, Belitung and Tuban had silica content of more than 90%, while that from Sidrap was more or less 90%. Based on the SEM analysis, characteristic of silica sands, and compressive strength of cement mortar, local silica sand from Sidrap (South Sulawesi Province) has a good potential to be used as a substitute for standard Ottawa sand in testing of cement mortar.

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