Design and evaluation of oil well cement-based composite materials improved by multi-component flexible materials
Complex oil and gas wells often experience complex stresses underground during the extraction process, which can easily cause damage to the cement paste. To improve the flexibility of oil well cement-based composite materials for wells, the evaluation was conducted on the effects of polyethylene fib...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ada5af |
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| author | Hui Zhang Chengwen Wang |
| author_facet | Hui Zhang Chengwen Wang |
| author_sort | Hui Zhang |
| collection | DOAJ |
| description | Complex oil and gas wells often experience complex stresses underground during the extraction process, which can easily cause damage to the cement paste. To improve the flexibility of oil well cement-based composite materials for wells, the evaluation was conducted on the effects of polyethylene fibers, elastic particles, and epoxy resin in cement slurry. Three types of flexible materials were used to design improved flexible cement-based composite materials for wells, and the performances of cement paste were evaluated. The results show that polyethylene fibers have excellent properties. With appropriate dosage, the flexural strength of oil well cement paste can be improved through bonding and traction, and there is no negative effect on the rheology of cement slurry. Elastic particles and epoxy resin can enhance the deformability and flexibility of cement paste by forming flexible structural centers and polymer film structures. The cement slurry established using polyethylene fibers, elastic particles, and epoxy resin has excellent workability, higher mechanical properties, lower elastic modulus, and better flexibility compared to conventional cement slurry systems. Compared with the conventional cement slurry system, the compressive strength and flexural strength of the flexible oil well cement-based composite materials cured for 24 h increased by 12.44% and 26.03% respectively, while the triaxial elastic modulus decreased by 33.68%. Different flexible materials form a synergistic effect by filling the interior of cement paste to improve its flexibility. |
| format | Article |
| id | doaj-art-2b8604f07b2b4c58abe04a5982e9f6fe |
| institution | Kabale University |
| issn | 2053-1591 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-2b8604f07b2b4c58abe04a5982e9f6fe2025-01-16T18:49:13ZengIOP PublishingMaterials Research Express2053-15912025-01-0112101550810.1088/2053-1591/ada5afDesign and evaluation of oil well cement-based composite materials improved by multi-component flexible materialsHui Zhang0https://orcid.org/0009-0009-9333-1215Chengwen Wang1School of Petroleum and Engineering, China University of Petroleum , Qingdao 266580, People’s Republic of China; Sinopec North China Company , Zhengzhou 450006, People’s Republic of ChinaSchool of Petroleum and Engineering, China University of Petroleum , Qingdao 266580, People’s Republic of ChinaComplex oil and gas wells often experience complex stresses underground during the extraction process, which can easily cause damage to the cement paste. To improve the flexibility of oil well cement-based composite materials for wells, the evaluation was conducted on the effects of polyethylene fibers, elastic particles, and epoxy resin in cement slurry. Three types of flexible materials were used to design improved flexible cement-based composite materials for wells, and the performances of cement paste were evaluated. The results show that polyethylene fibers have excellent properties. With appropriate dosage, the flexural strength of oil well cement paste can be improved through bonding and traction, and there is no negative effect on the rheology of cement slurry. Elastic particles and epoxy resin can enhance the deformability and flexibility of cement paste by forming flexible structural centers and polymer film structures. The cement slurry established using polyethylene fibers, elastic particles, and epoxy resin has excellent workability, higher mechanical properties, lower elastic modulus, and better flexibility compared to conventional cement slurry systems. Compared with the conventional cement slurry system, the compressive strength and flexural strength of the flexible oil well cement-based composite materials cured for 24 h increased by 12.44% and 26.03% respectively, while the triaxial elastic modulus decreased by 33.68%. Different flexible materials form a synergistic effect by filling the interior of cement paste to improve its flexibility.https://doi.org/10.1088/2053-1591/ada5afflexibilityfiberresinelastic particlesoil well cement |
| spellingShingle | Hui Zhang Chengwen Wang Design and evaluation of oil well cement-based composite materials improved by multi-component flexible materials Materials Research Express flexibility fiber resin elastic particles oil well cement |
| title | Design and evaluation of oil well cement-based composite materials improved by multi-component flexible materials |
| title_full | Design and evaluation of oil well cement-based composite materials improved by multi-component flexible materials |
| title_fullStr | Design and evaluation of oil well cement-based composite materials improved by multi-component flexible materials |
| title_full_unstemmed | Design and evaluation of oil well cement-based composite materials improved by multi-component flexible materials |
| title_short | Design and evaluation of oil well cement-based composite materials improved by multi-component flexible materials |
| title_sort | design and evaluation of oil well cement based composite materials improved by multi component flexible materials |
| topic | flexibility fiber resin elastic particles oil well cement |
| url | https://doi.org/10.1088/2053-1591/ada5af |
| work_keys_str_mv | AT huizhang designandevaluationofoilwellcementbasedcompositematerialsimprovedbymulticomponentflexiblematerials AT chengwenwang designandevaluationofoilwellcementbasedcompositematerialsimprovedbymulticomponentflexiblematerials |