The Development of Well Logging Method by Spectrum Analyses of Rock Drilling Noises

凿岩噪声频谱分析测井方法的发展

• 批准号: 01550487
• 负责人: NAKAJIMA Iwao
• 金额: $ 1.6万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01550487/
• 关键词: Boring; Well logging method; Rock drilling noises; Spectrum analyses; Mechanical properties of rock; Dominant frequency; 07Skewness factor of amplitude probability density function; 探査; ボ-リング; 穿孔音; スペクトル; 振幅確率密度分布

In this research, the analyses on the spectrum and the amplitude probability density function of rock drilling noises were carried out in order to obtain the mechanical properties of rock with real time during boring. Practically, drilling noises were detected by the transducer fixed to the triーconebit and the telemeter mounted on the upper end of rod. Furthermore, the rock noises were restored to the original wave through a reverse operation by the transfer function from the bit tooth to the transducer.As the results of these analyses, it was confirmed that a liner relationship existed between the mechanical properties of rock and the characteristics of the spectrum of rock drilling noises for example the maximum dominant value of high frequency component against the component value of 600 Hz. Also a liner relationship existed between the mechanical properties and the skewness or the flatness factor of the amplitude probability density function. These relations were liner enough for practical application. On the basis of these achievements it became possible to develop a new and original well logging method.

为了获得钻进过程中岩石的真实的力学特性，对凿岩噪声的频谱和幅值概率密度函数进行了分析。实践中，钻井噪声是由安装在牙轮钻头上的传感器和安装在钻杆上端的遥测仪检测的。此外，通过钻头齿到换能器的传递函数进行逆运算，将岩石噪声恢复为原始波。分析结果表明，证实了岩石的力学性质与凿岩噪声频谱特征如高频分量的最大优势值与600 Hz.力学性能与振幅概率密度函数的偏度和平坦因子之间存在线性关系。这些关系在实际应用中是线性的。在这些成果的基础上，发展一种新的、独创的测井方法成为可能。

项目成果

中島 巖,氏平 増之,村井 融: "穿孔音スペクトルによる岩石物性の評価法" 資源・素材 '90(資源・素材学会秋季大会分科研究会資料). K1. 9-12 (1990)

Iwao Nakajima、Masuyuki Ujihira、Toru Murai：“利用钻探声谱评估岩石物理性质的方法”资源与材料 90（日本资源与材料学会秋季会议小组委员会研究材料 K1）。 1990）

中島 巖,氏平 増之,村井 融: "穿孔音スペクトルによる岩石物性の評価法" 資源・素材'90 (資源・素材学会秋季大会分科研究会資料). K1. 9-12 (1990)

Iwao Nakajima、Masuyuki Ujihira、Toru Murai：“利用钻探声谱评估岩石物理性质的方法”资源与材料 90（日本资源与材料学会秋季会议小组委员会研究材料 K1）。 1990）

中島 巖,村井 融: "岩石穿孔音のスペクトルに関する研究" Hokkaido Geotechnics '90(北海道応用地学合同研究会論文集). No.1. 77-82 (1990)

Iwao Nakajima、Toru Murai：“凿岩声音频谱的研究”Hokkaido Geotechnics 90（北海道应用地质学联合研究组论文集）No. 1. 77-82 (1990)。

中島 巖,村井 融: "岩石穿孔音のスペクトルに関する研究" Hokkaido Geotechnics '90 (北海道応用地学合同研究会論文集). No.1. 77-82 (1990)

Iwao Nakajima、Toru Murai：“凿岩声音频谱的研究”Hokkaido Geotechnics 90（北海道应用地质学联合研究组论文集）No. 1. 77-82 (1990)。

Iwao Nakajima Masuyuki Ujihira Tohru Murai: "Estimation of Michanical Rock Properties by Spectrum of Drilling Noises" The Mining and Materials Processing '90. K-1. 9-12 (1990)

Iwao Nakajima Masuyuki Ujihira Tohru Murai：“通过钻孔噪声频谱估计机械岩石特性”采矿和材料加工90。