开发和应用抗高温延迟交联聚合物作为用于钻井流体的凝插头添加剂
Quanyang Wang1, Jing Cai1, Jiannan Wang1
1Drilling Engineering Research Institute, Sinopec Xinan Oilfield Service Corporation, Deyang 618000, China.
Gels (Basel, Switzerland)
|January 22, 2024
概括
一种新的聚合物凝,HDZ-A,有效地堵塞了深油气井中流失的循环区域. 这种高温,耐盐材料在160°C时表现出超过97%的显著堵塞效率.
科学领域:
- 石油工程是石油工程中的一个.
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
背景情况:
- 失去循环在深度和超深度石油和天然气勘探中是一个重大挑战.
- 传统的堵塞材料往往无法满足这些操作的苛刻技术要求.
研究的目的:
- 为了合成和评估一种新型的高温和耐盐聚合物,HDZ-A.
- 开发一种延迟交联的聚合物凝堵塞剂,用于具有挑战性的钻井环境.
主要方法:
- 使用直角实验优化HDZ-A合成,评估粘性弹性和粘度.
- 通过光谱学和色谱学来描述HDZ-A的分子结构,耐温性和分子质量.
- 使用凝强度确定最佳凝堵塞剂配方.
主要成果:
- 在高温交联后,HDZ-A表现出稳定的性能,抵御高达160°C的温度.
- 凝堵塞剂在160°C时达到4.5小时的凝时间.
- 在高温条件下,被证明的堵塞效率超过97%.
结论:
- 合成的HDZ-A聚合物及其凝配方为流失的循环提供了高性能解决方案.
- 开发的堵塞剂在高温环境中是有效的,实验室测试和现场试验证实了这一点.
- 在奥尔多斯盆地进行的实地测试证实了HDZ-A凝堵塞剂显著的堵塞效果.
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