Application of modified and toughened admixtures in well cementing slurry: Progress and challenges DOI Creative Commons
Yihang Zhang

Frontiers in Materials, Journal Year: 2024, Volume and Issue: 11

Published: Sept. 23, 2024

Cementing, as an important part of the petroleum industry, plays a crucial role in ensuring normal production and development oil gas resources. However, due to brittle nature Portland cement, it is prone micro-cracks when subjected downhole impact or vibration, which affects operations. Moreover, conventional elastic particles have significant on performance cement paste, prompting people continuously research new toughening admixtures. This article reviews mechanism additives for well status physical agents (fibers/whiskers, graphene) polymer (latex, epoxy resin, asphalt), aiming provide reference guidance additives.

Language: Английский

Occurrence Mechanism of the Abnormal Gelation Phenomenon of High Temperature Cementing Slurry Induced by a Polycarboxylic Retarder DOI Creative Commons

Xiujian Xia,

Hang Zhang,

Yongjin Yu

et al.

ACS Omega, Journal Year: 2024, Volume and Issue: 9(8), P. 9424 - 9431

Published: Feb. 19, 2024

The class G oil well cement is a type of special that can be subjected to high temperature formation environment. It was found the tail slurry with low polycarboxylic retarder dosage (usually ≤1% by weight cement) more prone cause abnormal gelation phenomenon (AGP) than lead at when T ≥ 120 °C). This study aimed occurrence mechanism this unfavorable seriously endangers cementing security. Results showed gelatinous region underwent premature hydration; namely, calcium hydroxide and silicate hydrate (C–S–H) content were all higher nongelatinous region, while copolymer opposite. Correspondingly, theory "premature hydration crystal nucleation" proposed explain an insufficient dosage. Furthermore, novel functionalized "PAIANS" synthesized alleviate AGP.

Language: Английский

Citations

5
Experimental and numerical studies of the effects of micro/nano carbon fibers in the dynamic behavior of cement-based grouting materials for reinforcement of sand layers DOI
Zhu Chang-xing,

Jiaxin Huo,

Dazhi Wu

et al.

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 432, P. 136655 - 136655

Published: May 18, 2024

Language: Английский

Citations

5
Experimental investigation of the impact of short-term hydrogen exposure on cement sheath’s mechanical and sealing integrity. DOI
Diana Maury Fernandez, Hossein Emadi, Athar Hussain

et al.

Geoenergy Science and Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 213885 - 213885

Published: April 1, 2025

Language: Английский

Citations

0
A closed-form solution for dynamic analysis of auxetic sandwich cylindrical structures with FG face sheets under moving pressure DOI Creative Commons
Farid Mahboubi Nasrekani

Mechanics Based Design of Structures and Machines, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 19

Published: April 11, 2025

Language: Английский

Citations

0
An innovative perspective to analyze failure process of three widely utilized fiber-reinforced oil well cement pastes DOI
Yao Zhang,

Xinyi Zhu,

Kang Ye

et al.

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 477, P. 141332 - 141332

Published: April 16, 2025

Language: Английский

Citations

0
Effect of aging on the mechanical properties of woven fabric-reinforced calcined diatomite substituted cement-based composites DOI Creative Commons
Ercan Bozkurt,

Selçuk Türkel,

Burak Felekoğlu

et al.

Materials Research Express, Journal Year: 2024, Volume and Issue: 11(5), P. 055302 - 055302

Published: April 22, 2024

Abstract The mechanical characteristics of polyester and flax woven fabric-reinforced, diatomite-substituted, cement-based composites have been examined at different ages within the scope this study. use calcined diatomite in combination with a matrix aims to improve performance composite as well reduce carbon emissions. consistency diatomite-substituted matrices water-to-binder proportions 0.28 0.45 was maintained fixed flow diameter 235 mm adjusted superplasticizer. stress–strain graphs were obtained using an axial tensile testing machine Linear Variable Differential Transformers (LVDT). strength, ductility, toughness development, multi-crack WFRC function fabric type aging. effects aging on properties are discussed separately for each type. Polyester fabric-reinforced found be superior terms several all ages. substitution further improved composites. fabric-matrix interface densification role determined by SEM/EDS line analysis. Evidence pozzolanic reaction between portlandite through microstructure studies. Carbon emission analysis revealed that equivalent CO 2 emissions could reduced reinforced However, caused cost increasing effect.

Language: Английский

Citations

1
Permeability evolution of the rock–concrete interface in underground high-pressure gas storage DOI Creative Commons
Meng Wang, Bing Chen, Jiwei Xu

et al.

Journal of Rock Mechanics and Geotechnical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

Citations

1
Development of eco-friendly diatomite substituted woven fabric reinforced composites with optimized reinforcing ratio DOI
Ercan Bozkurt,

Selçuk Türkel,

Burak Felekoğlu

et al.

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 440, P. 137474 - 137474

Published: July 17, 2024

Language: Английский

Citations

0
Study on the Modification Mechanism of Soap-Free Latex on the Microstructure and Mechanical Properties of Cement Paste DOI
Libin Jiao, Wenzhe Li,

Feng Dai

et al.

Journal of Testing and Evaluation, Journal Year: 2024, Volume and Issue: 52(5), P. 3054 - 3064

Published: Aug. 15, 2024

ABSTRACT In view of problems such as the decline in strength cement paste and latex exudation caused by addition conventional latex, JAS soap-free (JAS latex) was prepared emulsion polymerization technology. had characteristics low viscosity, uniform particle size, good dispersity particles, compatibility with admixtures. little impact on fluidity oil-well paste. The free liquid 10 % 0 %, its liquid-loss content 43 mL. When cured at 90°C, compressive 34.08 MPa. curing temperature 70°C, bond between metal casing reached 4.95 Combining results tested X-ray diffraction, scanning electron microscopy, atomic force microscopy showed that did not affect hydration process cement, film-forming ability paste, improved density resistance It is helpful to improve sealing integrity sheath cementing engineering ensure safe efficient development oil natural gas resources.

Language: Английский

Citations

0
Application of modified and toughened admixtures in well cementing slurry: Progress and challenges DOI Creative Commons
Yihang Zhang

Frontiers in Materials, Journal Year: 2024, Volume and Issue: 11

Published: Sept. 23, 2024

Cementing, as an important part of the petroleum industry, plays a crucial role in ensuring normal production and development oil gas resources. However, due to brittle nature Portland cement, it is prone micro-cracks when subjected downhole impact or vibration, which affects operations. Moreover, conventional elastic particles have significant on performance cement paste, prompting people continuously research new toughening admixtures. This article reviews mechanism additives for well status physical agents (fibers/whiskers, graphene) polymer (latex, epoxy resin, asphalt), aiming provide reference guidance additives.

Language: Английский

Citations

0