Estimation of subsurface structure by means of the Triaxial Drill-bit VSP (proof test)

通过三轴钻头 VSP 估算地下结构（验证测试）

• 批准号: 04555146
• 负责人: NIITSUMA Hiroaki
• 金额: $ 6.98万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04555146/
• 关键词: SWD; Reverse VSP; Seismic measurement; Multicomponent seismic; Geothermal Energy; Subsurface measurement; Reflection method; Hot Dry Rock; 坑井掘削モヌタリング; 地熱開発; 坑井掘削モニタリング

(1) Development of softwares and hardwares ; realtime and post-analysis software packages were made. We also developed highly sensitive 3C sensor.(2) Field experiment ; A measurement well was drilled in JNOC Kashiwazaki Test Field and we carried out seismic measurement experiment in this field in 1992,3, and 4. Seismic measurement was also made in Ogachi(Akita)and Hachimantai(Iwate)fields.(3) Analysis of field data ; (a)geothermal reservoir in Ogachi field was detected by the TAD-VSP method, (b)subsurface structure in Hachimantai field was imaged by the technique, (c)good agreement was observed between log data and TAD-VSP data in JNOC Kashiwazaki field.(4) General analysis ; informations on subsurface structure in the fields were compared with the TAD-VSP data deduced in this project.(5) Suggestion of the TAD-VSP method ; a suggestion was made by the investigators to realize TAD-VSP.

(1)软件和硬件的开发，制作了实时和后分析软件包。我们还开发了高灵敏度的3C传感器。(2)田间试验;在日本国家石油公司柏崎试验场钻了一口测量井，并于1992年3月和4月在该试验场进行了地震测量试验。在Ogachi（秋田）和Hachimantai（岩手）油田也进行了地震测量。(3)分析现场数据;（a）利用TAD-VSP方法探测Ogachi油田的地热储层，（B）利用该技术成像Hachimantai油田的地下结构，（c）在JNOC柏崎油田的测井数据和TAD-VSP数据之间观察到良好的一致性。(4)综合分析了野外的地下构造信息，并与本项目中推导的TAD-VSP资料进行了对比。(5)TAD-VSP方法的建议;研究人员建议实现TAD-VSP。

项目成果

Hiroaki Niitsuma, et.al.: "Evaluation of geothermal reservoir structures by a new downhole seismic techniques" WGC Abstracts to be appeared in 1995.

Hiroaki Niitsuma 等人：“通过新的井下地震技术评估地热储层结构”WGC 摘要，将于 1995 年出版。

加原 和明,浅沼 宏 新妻 弘明: "岩盤調査孔の掘削にともなう弾性波の3軸計測実験" 資源・素材学会東北支部秋期研究発表会講演論文集. 5 (1992)

Kazuaki Kahara、Hiroshi Asanuma、Hiroaki Niizuma：“与钻探岩石勘探孔相关的弹性波的 3 轴测量实验”日本自然资源与材料学会东北分会秋季研究报告会论文集，5（1992 年）

H.Asanuma,H.Niitsuma: "Measurement of a HDR reservoir by means of the triaxial drill-bit VSP" Abstracts of 2nd Borehole Seismics Conference. (1993)

H.Asanuma，H.Niitsuma：“通过三轴钻头 VSP 测量 HDR 储层”第二届钻孔地震会议摘要。

H. Niitsuma他3名: "Evaluation of geothermal reservoir structures by a new downhole seismic technique" WGC Abstracts. (in press). (1995)

H. Niitsuma 和其他 3 人：“通过新的井下地震技术评估地热储层结构”WGC 摘要（1995 年）。

Hiroshi Asanuma and Hiroaki Niitsuma: "Triaxial VSP uses drill bit as a downhole seismic source" SEG Expanded Abstracts. 108-11 (1992)

Hiroshi Asanuma 和 Hiroaki Niitsuma：“三轴 VSP 使用钻头作为井下地震源”SEG 扩展摘要。