基于岩石钻孔能力特征和岩石破碎指标主要组件分析的比特选择方法
Yang Hu1, Xian Xinlong1, Zhou Penggao2
1The College of Petroleum, China University of Petroleum (Beijing) at Karamay, Karamay, China.
Heliyon
|February 25, 2025
概括
这项研究开发了一个高效率的钻头数据库,用于在格尔盆地进行超深的石油和天然气勘探. 数据库通过将钻头与岩石力学和反钻特性相匹配来提高钻探速度和镜头.
科学领域:
- 地质科学 地质科学
- 石油工程是石油工程中的一个.
- 钻井技术 钻井技术
背景情况:
- 南格尔盆地的超深油气勘探面临复杂的岩石结构和高岩石强度带来的挑战,导致透率低,钻井周期长.
- 精确地描述岩石的机械特性和防钻特性对于优化钻探在这些具有挑战性的岩层中至关重要.
研究的目的:
- 建立一个用于关键岩石力学和反钻探参数的采伐逆转模型,用于南部格尔盆地的深层层.
- 开发一个高效率钻头模型数据库,以适应该地区的特殊地质条件.
- 为快速钻深井提供有效的技术参考.
主要方法:
- 核心机械参数的室内测试.
- 使用非线性多重回归的日志反转模型的开发.
- 来自11个典型井的岩石力学和防钻特性分析.
- 基于这些特征的构成层的分层.
- 使用主要组件分析,对钻孔数据进行全面的钻头选择和统计分析.
- 建立一个高效率的钻头数据库.
主要成果:
- 成功建立了七个岩石力学和反钻参数的记录反转模型.
- 该研究根据这些特征确定了分布规律和分层层.
- 开发的高效率钻头数据库导致钻井性能显著改善.
- 与相邻井相比,在两个井的应用显示了平均镜头增加35.2%至39.3%,平均透率增加15.9%至34.9%.
结论:
- 基于岩石机械性能和岩石破裂指数的高效钻头数据库,为南方格尔盆地快速钻井提供了有效的技术参考.
- 这种方法优化了钻头选择,从而提高了钻井效率,并减少了超深层形成的钻井周期.
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