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A platform for research: civil engineering, architecture and urbanism
High-temperature high-strength tough cement paste based on graphite material as well as preparation and application thereof
The invention provides high-temperature high-strength tough cement paste based on a graphite material and preparation and application of the high-temperature high-strength tough cement paste based on the graphite material, and the high-temperature high-strength tough cement paste based on the graphite material comprises the following components in parts by weight: 100 parts of high-sulfate-resistance G-grade oil well cement; 2-6 parts by weight of elastic graphite; 2-6 parts by weight of expanded graphite; 20-50 parts by weight of quartz sand; 0-15 parts by weight of an ultra-high temperature strength anti-decline material; 0.5-2 parts by weight of a dispersant; 2-4 parts by weight of a high-temperature stabilizer; 0.5-4 parts by weight of a high-temperature fluid loss agent; 0.2-8 parts by weight of a high-temperature retarder; 0.1-1 part by weight of a defoaming agent; and 40-80 parts by weight of clear water. The cement paste provided by the invention is suitable for well cementation operation of a high-temperature and ultrahigh-temperature well with the well bottom temperature of 150-600 DEG C, and after the cement paste is hardened into set cement under high-temperature and ultrahigh-temperature conditions, the set cement is high in long-term strength, does not decline and is good in toughness.
本发明提供了一种基于石墨材料的高温高强度韧性水泥浆及其制备与应用，以重量份计，所述基于弹性石墨的高温高强度韧性水泥浆包括：高抗硫酸盐型G级油井水泥100重量份；弹性石墨2‑6重量份；膨胀石墨2‑6重量份；石英砂20‑50重量份；超高温强度防衰退材料0‑15重量份；分散剂0.5‑2重量份；高温稳定剂2‑4重量份；高温降失水剂0.5‑4重量份；高温缓凝剂0.2‑8重量份；消泡剂0.1‑1重量份；清水40‑80重量份。本发明提供的该水泥浆适用于井底温度为150‑600℃的高温超高温井固井作业，其于高温超高温条件下硬化成水泥石后，水泥石长期强度高且不衰退，韧性好。
High-temperature high-strength tough cement paste based on graphite material as well as preparation and application thereof
The invention provides high-temperature high-strength tough cement paste based on a graphite material and preparation and application of the high-temperature high-strength tough cement paste based on the graphite material, and the high-temperature high-strength tough cement paste based on the graphite material comprises the following components in parts by weight: 100 parts of high-sulfate-resistance G-grade oil well cement; 2-6 parts by weight of elastic graphite; 2-6 parts by weight of expanded graphite; 20-50 parts by weight of quartz sand; 0-15 parts by weight of an ultra-high temperature strength anti-decline material; 0.5-2 parts by weight of a dispersant; 2-4 parts by weight of a high-temperature stabilizer; 0.5-4 parts by weight of a high-temperature fluid loss agent; 0.2-8 parts by weight of a high-temperature retarder; 0.1-1 part by weight of a defoaming agent; and 40-80 parts by weight of clear water. The cement paste provided by the invention is suitable for well cementation operation of a high-temperature and ultrahigh-temperature well with the well bottom temperature of 150-600 DEG C, and after the cement paste is hardened into set cement under high-temperature and ultrahigh-temperature conditions, the set cement is high in long-term strength, does not decline and is good in toughness.
本发明提供了一种基于石墨材料的高温高强度韧性水泥浆及其制备与应用，以重量份计，所述基于弹性石墨的高温高强度韧性水泥浆包括：高抗硫酸盐型G级油井水泥100重量份；弹性石墨2‑6重量份；膨胀石墨2‑6重量份；石英砂20‑50重量份；超高温强度防衰退材料0‑15重量份；分散剂0.5‑2重量份；高温稳定剂2‑4重量份；高温降失水剂0.5‑4重量份；高温缓凝剂0.2‑8重量份；消泡剂0.1‑1重量份；清水40‑80重量份。本发明提供的该水泥浆适用于井底温度为150‑600℃的高温超高温井固井作业，其于高温超高温条件下硬化成水泥石后，水泥石长期强度高且不衰退，韧性好。
High-temperature high-strength tough cement paste based on graphite material as well as preparation and application thereof
基于石墨材料的高温高强度韧性水泥浆及其制备与应用
LIU HUITING (author) / YU YONGJIN (author) / JIN JIANZHOU (author) / QI FENGZHONG (author) / ZHANG HUA (author) / QU CONGFENG (author) / ZHANG CHI (author) / XIA XIUJIAN (author) / ZHANG JIAYING (author) / WANG GUIFU (author)
2023-12-08
Patent
Electronic Resource
Chinese
| European Patent Office | 2021
| European Patent Office | 2022
| European Patent Office | 2022
| European Patent Office | 2021