Recipe of Lightweight Slurry with High Early Strength of the Resultant Cement Sheath
Admixtures of mineral or waste filling materials are used to reduce slurry density. However, the sheath made of lightweight cement slurry has low mechanical performance at the initial bonding time. The required strength is achieved later. This is the main problem when evaluating the cement bond logg...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/7/1583 |
| _version_ | 1827719583765626880 |
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| author | Marcin Kremieniewski |
| author_facet | Marcin Kremieniewski |
| author_sort | Marcin Kremieniewski |
| collection | DOAJ |
| description | Admixtures of mineral or waste filling materials are used to reduce slurry density. However, the sheath made of lightweight cement slurry has low mechanical performance at the initial bonding time. The required strength is achieved later. This is the main problem when evaluating the cement bond logging. The waiting time for geophysical measurements after injecting and bonding of cement is nowadays increasingly shortened. This is forced by economic factors. Too early geophysical measurements may result in obtaining a false indication of the cement bond logging. The lack of cement or partial bonding, despite the presence of slurry in the annular space is then found. The slurry developed by the author achieves high compressive strength after a short bonding time. Reducing the amount of water in the slurry resulted in a lowered filtration value. This is important in preventing gas migration after the cementing. The designed slurry also reaches the value of 3.5 MPa in a short time. This allows for an earlier commencement of a well drilling. The use of said slurry improves the effectiveness of the well sealing and makes it possible to obtain a reliable knowledge of the bond logging. |
| first_indexed | 2024-03-10T20:46:12Z |
| format | Article |
| id | doaj.art-acf865bbf7684416a6bd12e32e57b6a9 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T20:46:12Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-acf865bbf7684416a6bd12e32e57b6a92023-11-19T20:19:27ZengMDPI AGEnergies1996-10732020-04-01137158310.3390/en13071583Recipe of Lightweight Slurry with High Early Strength of the Resultant Cement SheathMarcin Kremieniewski0Oil and Gas Institute, National Research Institute, 25A Lubicz Str., 31-503 Krakow, PolandAdmixtures of mineral or waste filling materials are used to reduce slurry density. However, the sheath made of lightweight cement slurry has low mechanical performance at the initial bonding time. The required strength is achieved later. This is the main problem when evaluating the cement bond logging. The waiting time for geophysical measurements after injecting and bonding of cement is nowadays increasingly shortened. This is forced by economic factors. Too early geophysical measurements may result in obtaining a false indication of the cement bond logging. The lack of cement or partial bonding, despite the presence of slurry in the annular space is then found. The slurry developed by the author achieves high compressive strength after a short bonding time. Reducing the amount of water in the slurry resulted in a lowered filtration value. This is important in preventing gas migration after the cementing. The designed slurry also reaches the value of 3.5 MPa in a short time. This allows for an earlier commencement of a well drilling. The use of said slurry improves the effectiveness of the well sealing and makes it possible to obtain a reliable knowledge of the bond logging.https://www.mdpi.com/1996-1073/13/7/1583well cementingcement slurrycement sheathmicrospherescompressive strength |
| spellingShingle | Marcin Kremieniewski Recipe of Lightweight Slurry with High Early Strength of the Resultant Cement Sheath Energies well cementing cement slurry cement sheath microspheres compressive strength |
| title | Recipe of Lightweight Slurry with High Early Strength of the Resultant Cement Sheath |
| title_full | Recipe of Lightweight Slurry with High Early Strength of the Resultant Cement Sheath |
| title_fullStr | Recipe of Lightweight Slurry with High Early Strength of the Resultant Cement Sheath |
| title_full_unstemmed | Recipe of Lightweight Slurry with High Early Strength of the Resultant Cement Sheath |
| title_short | Recipe of Lightweight Slurry with High Early Strength of the Resultant Cement Sheath |
| title_sort | recipe of lightweight slurry with high early strength of the resultant cement sheath |
| topic | well cementing cement slurry cement sheath microspheres compressive strength |
| url | https://www.mdpi.com/1996-1073/13/7/1583 |
| work_keys_str_mv | AT marcinkremieniewski recipeoflightweightslurrywithhighearlystrengthoftheresultantcementsheath |