Study on Preparation of Cement Slurry Retarder with High Temperature Resistance for Cementing

Dongjun Wang ； Tiancheng Wang ； Mingyue Gong ； Ying Xin ； Wei Jiang ； Chenkang Zhao ； Sihan Feng ； Yu Zu

《Frontiers in Science and Engineering》 1卷7期 (2021/10) Pp. 143-149

https://doi.org/10.29556/FSE.202110_1(7).0022

摘要

With the rapid development of petroleum industry, the exploration and development of oil fields has developed towards medium and deep wells and ultra-deep wells, which brings many new problems to oilfield cementing engineering. To solve the problem of slow development of strength at the top of cement slurry column with large temperature difference in long sealing section of deep and ultra-deep wells, a new polymer retarder with high temperature resistance was developed by free radical aqueous solution polymerization, and its performance was evaluated. The results show that the product has good retarding effect at high temperature, and has good compatibility with most dispersants and fluid loss additives. The prepared cement slurry has the characteristics of high temperature right angle thickening. In the temperature range of 90 ~ 130℃, the new high-temperature retarder has certain high-temperature filtration reduction performance, and the compressive strength of cement paste mixed with the new high-temperature retarder can meet the basic technical requirements of cementing operation under high-temperature curing. It is of great significance to improve cementing quality, simplify wellbore structure and save drilling cost in long cementing section of deep well.

關鍵字

High Temperature Resistance ； Cementing ； Cement Slurry Retarder

參考文獻

Jun-jun, Yan X F, Huang W G, et al. High-temperature oxidation behavior of 9Cr-5Si-3Al ferritic heat-resistant steel[J]. International Journal of Minerals Metallurgy and Materials, 2020, v.27; No.191 (09):82-88.

Tyagunov A G, Baryshev E E, Tyagunov G V, et al. High-Temperature Melt Treatment in the Production of Heat-Resistant Alloys with a High Content of Foundry Wastes[J]. Steel in Translation, 2019, 49(3):163-167.

Li H, Li L, Zheng S, et al. High Temperature Resistant Separator of PVDF-HFP/DBP/C-TiO2 for Lithium-Ion Batteries[J]. Materials, 2019, 12(17):2813.

Zhang Fan, Li Xiaoping, Li Xiaoshen. Development of Preparation Systems with K_2CsSb Photocathodes and Study on the Preparation Process[J]. Chinese Physics Letters, 2019,36(02):8-11.

Bai Y, Lian Y, Ban C, et al. Facile synthesis of temperature-resistant hydroxylated carbon black/ polyacrylamide nanocomposite gel based on chemical crosslinking and its application in oilfield[J]. Journal of Molecular Liquids, 2021, 329(4):115578.