构建和评估可降解的钻井液,用于地下煤床甲提取钻井
Lingrui Kong1,2, Jianxin Tang1,2, Yongjiang Luo1,2
1Chongqing University state key laboratory of coal mine disaster dynamics and control, Chongqing University, Chongqing 400044, China.
ACS omega
|March 11, 2024
概括
一个新的可降解的钻井流体系统增强了用于煤床甲提取的地下压力钻井. 这种系统最大限度地减少了煤层的损坏,并改善了钻探后的气流回收.
科学领域:
- 采矿工程 采矿工程 采矿工程
- 石油工程是石油工程中的一个.
- 材料科学 材料科学 材料科学
背景情况:
- 使用床层钻井的气体排水对于地下煤矿的安全性和资源回收至关重要.
- 压力钻探方法用于钻孔稳定性,但天然煤层断裂使该过程复杂化.
- 尽量减少煤层损坏需要一个低泄漏,可降解的钻井液体系统.
研究的目的:
- 开发和评估一个适合煤层特征的可降解钻井流体系统.
- 评估钻井液和细胞酶的性能,影响因素和降解能力.
- 为了研究钻井液对破裂煤层和气流的影响.
主要方法:
- 使用特定添加剂开发可降解的钻井液系统.
- 性能评估,包括风湿学,过和抑制试验.
- 核心流量测试用于评估钻井流体对破裂煤层和气流回收的损害.
主要成果:
- 添加剂显著增强了钻井液的性能 (风湿学,过,抑制).
- 开发的系统表现出卓越的稳定性,低过率和煤层的密封性.
- 钻井液入侵和泥蛋糕降低了气体流量;过剂减少剂的含量影响了流量恢复.
- 细胞酶有效降解聚合物,有助于清除泥蛋糕,并恢复处理过的煤样本中的气流.
结论:
- 可降解的钻井流体系统对于煤层的地下压力钻井是有效的.
- 细胞酶处理可以减轻钻井液入侵造成的气体流量负面影响.
- 这项研究提供了一种方法,以最大限度地减少储损坏,并提高天然气提取效率.
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