洞察钻探性能参数,以在现场检测石质过渡的情况
Kazumasa Tanimoto1,2, Yohei Hamada3, Ikuo Katayama4
1Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8526, Japan. tkazumasa118@gmail.com.
Scientific reports
|November 28, 2024
概括
蛇形石的钻孔速度 (透率或ROP) 比石和岩石岩石要高得多. 这一发现表明,现场钻探数据可以识别石质变化,如蛇形岩.
科学领域:
- 地质地质地质地质地质地
- 钻井工程 钻井工程
- 材料科学 材料科学 材料科学
背景情况:
- 钻井性能受到岩石特性的影响.
- 了解岩石钻探相互作用对于高效的资源勘探和科学钻探至关重要.
研究的目的:
- 为了研究岩石类型和钻井性能参数 (扭矩,ROP) 之间的关系.
- 评估利用钻探数据在现场识别石质变化的潜力.
主要方法:
- 实验室对岩石和超级岩石进行钻探实验 (阿曼岩,霍罗曼综合体).
- 实验室数据与IODP 360和399号探险队的现场数据进行比较.
- 应用等效强度方法来使ROP正常化.
主要成果:
- 在干燥和潮湿的条件下,蛇形化矿显示出矿和矿样本的ROP的约两倍.
- 蛇形化矿的正常化ROP始终高于gabbro.
- 由于蛇形化,骨折强度降低可能解释了ROP的增加.
结论:
- 蛇形化显著提高了钻井速度.
- 在现场钻探性能参数可以作为石质过渡的指标,特别是用于蛇形岩的检测.
- 这项研究有助于优化钻探策略和解释钻探过程中遇到的地质构造.
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