低重力固体对弱凝结构和基于石油的钻井流体性能的影响
Haokun Shen1,2, Jinsheng Sun1,2,3, Kaihe Lv1,2
1School of Petroleum Engineering, China University of Petroleum, Qingdao 266580, China.
低重力固体 (LGS) 对基于石油的钻井流体性能产生负面影响. 高度的LGS增加了风湿学参数和过,同时降低了乳液稳定性,特别是在较小的颗粒大小.
科学领域:
- 石油工程是石油工程中的一个.
- 钻井流体技术 技术 钻井流体
- 材料科学 材料科学 材料科学
背景情况:
- 钻井操作产生细颗粒 (切片),与钻井液混合.
- 小而轻的粒子,称为低重力固体 (LGS),很难使用标准设备去除.
- 了解LGS的影响对于优化钻井流体性能至关重要.
研究的目的:
- 为了研究低重力固体 (LGSs) 对基于石油的钻井流体 (OBDF) 性能的影响.
- 分析由于LGSs而导致的风湿性质,过,乳液稳定性和过蛋糕质量的变化.
- 为了确定LGS粒子大小对OBDF行为的影响.
主要方法:
- 将LGS控制添加到以石油为基础的钻井液样本中.
- 测量质性质 (塑料粘度,凝强度,厚度变异).
- 评估高温和高压过损失和过蛋糕特性.
- 对OBDF乳液稳定性的评估.
主要成果:
- 随着LGS含量接近或超过固体容量极限,观察到塑料粘度,凝强度和厚度显著增加.
- OBDF过率增加,过蛋糕加厚,摩擦阻力随着LGS度的增加而增加.
- 在固体容量极限 (6-9%重量LGSs) 时,乳液稳定性显著下降.
- 较小的LGS颗粒大小对钻井液性能产生了更明显的负面影响.
结论:
- 在高度下,LGS显著改变OBDF的特性,特别是在高度下.
- 更小的LGS颗粒对钻井流体性能构成更大的挑战.
- 调查结果为管理LGS提供了指导,以有效调节OBDF性能.
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