An Improvement in Thermal and Rheological Properties of Water-based Drilling Fluids Using Multiwall Carbon Nanotube (MWCNT)
Designing drilling fluids for drilling in deep gas reservoirs and geothermal wells is a major challenge. Cooling drilling fluids and preparing stable mud with high thermal conductivity are of great concern. Drilling nanofluids, i.e. a low fraction of carbon nanotube (CNT) well dispersed in mud, may...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Petroleum University of Technology
2012-11-01
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| Series: | Iranian Journal of Oil & Gas Science and Technology |
| Subjects: | |
| Online Access: | http://ijogst.put.ac.ir/article_2775_6ecb236d2ace255281f62c395951bed7.pdf |
| _version_ | 1811281951102861312 |
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| author | Mostafa Sedaghatzadeh Abbasali Khodadadi Mohammad reza Tahmasebi birgani |
| author_facet | Mostafa Sedaghatzadeh Abbasali Khodadadi Mohammad reza Tahmasebi birgani |
| author_sort | Mostafa Sedaghatzadeh |
| collection | DOAJ |
| description | Designing drilling fluids for drilling in deep gas reservoirs and geothermal wells is a major challenge. Cooling drilling fluids and preparing stable mud with high thermal conductivity are of great concern. Drilling nanofluids, i.e. a low fraction of carbon nanotube (CNT) well dispersed in mud, may enhance the mixture thermal conductivity compared to the base fluids. Thus, they are potentially useful for advanced designing high temperature and high pressure (HTHP) drilling fluids. In the present study, the impacts of CNT volume fraction, ball milling time, functionalization, temperature, and dispersion quality (by means of scanning electron microscopy, SEM) on the thermal and rheological properties of water-based mud are experimentally investigated. The thermal conductivities of the nano-based drilling fluid are measured with a transient hot wire method. The experimental results show that the thermal conductivity of the water-based drilling fluid is enhanced by 23.2% in the presence of 1 vol% functionalized CNT at room temperature; it increases by 31.8% by raising the mud temperature to 50 °C. Furthermore, significant improvements are seen in the rheological properties—such as yield point, filtration properties, and annular viscosity—of the CNTmodified drilling fluid compared to the base mud, which pushes forward their future development. |
| first_indexed | 2024-04-13T01:42:49Z |
| format | Article |
| id | doaj.art-3807921071a844c58bff9e9d80d93e71 |
| institution | Directory Open Access Journal |
| issn | 2345-2412 2345-2420 |
| language | English |
| last_indexed | 2024-04-13T01:42:49Z |
| publishDate | 2012-11-01 |
| publisher | Petroleum University of Technology |
| record_format | Article |
| series | Iranian Journal of Oil & Gas Science and Technology |
| spelling | doaj.art-3807921071a844c58bff9e9d80d93e712022-12-22T03:08:08ZengPetroleum University of TechnologyIranian Journal of Oil & Gas Science and Technology2345-24122345-24202012-11-0111556510.22050/ijogst.2012.27752775An Improvement in Thermal and Rheological Properties of Water-based Drilling Fluids Using Multiwall Carbon Nanotube (MWCNT)Mostafa Sedaghatzadeh0Abbasali Khodadadi1Mohammad reza Tahmasebi birgani2Petroleum University of TechnologyUniversity of TehranNational Iranian Drilling CompanyDesigning drilling fluids for drilling in deep gas reservoirs and geothermal wells is a major challenge. Cooling drilling fluids and preparing stable mud with high thermal conductivity are of great concern. Drilling nanofluids, i.e. a low fraction of carbon nanotube (CNT) well dispersed in mud, may enhance the mixture thermal conductivity compared to the base fluids. Thus, they are potentially useful for advanced designing high temperature and high pressure (HTHP) drilling fluids. In the present study, the impacts of CNT volume fraction, ball milling time, functionalization, temperature, and dispersion quality (by means of scanning electron microscopy, SEM) on the thermal and rheological properties of water-based mud are experimentally investigated. The thermal conductivities of the nano-based drilling fluid are measured with a transient hot wire method. The experimental results show that the thermal conductivity of the water-based drilling fluid is enhanced by 23.2% in the presence of 1 vol% functionalized CNT at room temperature; it increases by 31.8% by raising the mud temperature to 50 °C. Furthermore, significant improvements are seen in the rheological properties—such as yield point, filtration properties, and annular viscosity—of the CNTmodified drilling fluid compared to the base mud, which pushes forward their future development.http://ijogst.put.ac.ir/article_2775_6ecb236d2ace255281f62c395951bed7.pdfCarbon nanotubeThermal conductivityWater-based FluidMud Viscosity |
| spellingShingle | Mostafa Sedaghatzadeh Abbasali Khodadadi Mohammad reza Tahmasebi birgani An Improvement in Thermal and Rheological Properties of Water-based Drilling Fluids Using Multiwall Carbon Nanotube (MWCNT) Iranian Journal of Oil & Gas Science and Technology Carbon nanotube Thermal conductivity Water-based Fluid Mud Viscosity |
| title | An Improvement in Thermal and Rheological Properties of Water-based
Drilling Fluids Using Multiwall Carbon Nanotube (MWCNT) |
| title_full | An Improvement in Thermal and Rheological Properties of Water-based
Drilling Fluids Using Multiwall Carbon Nanotube (MWCNT) |
| title_fullStr | An Improvement in Thermal and Rheological Properties of Water-based
Drilling Fluids Using Multiwall Carbon Nanotube (MWCNT) |
| title_full_unstemmed | An Improvement in Thermal and Rheological Properties of Water-based
Drilling Fluids Using Multiwall Carbon Nanotube (MWCNT) |
| title_short | An Improvement in Thermal and Rheological Properties of Water-based
Drilling Fluids Using Multiwall Carbon Nanotube (MWCNT) |
| title_sort | improvement in thermal and rheological properties of water based drilling fluids using multiwall carbon nanotube mwcnt |
| topic | Carbon nanotube Thermal conductivity Water-based Fluid Mud Viscosity |
| url | http://ijogst.put.ac.ir/article_2775_6ecb236d2ace255281f62c395951bed7.pdf |
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