A Study on hydropulse tomography in multiphase condition in underground

地下多相条件下的水脉冲层析成像研究

• 批准号: 08651111
• 负责人: MASUMOTO Kiyoshi
• 金额: $ 1.47万
• 依托单位: Shimane University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08651111/
• 关键词: hydropulse tomography; multiphase flow; inversion; hydraulic property

In order to estimate three dimensional heterogeneous hydraulic properties in multiphase condition in underground, numerical inversion code based on quasi-Newton method and optimal control method for two-phase condition has been developed.To evaluate the reliability on hydraulic parameters estimated by hydropulse tomography, highly efficient numerical algorithm with pressure change rate matching for single-phase inversion has been developed, and confidence intervals of hydraulic properties estimated by the code has been calculated. 'And, by analytical study, pressure change rate matching algorithm for two-phase numerical inversion has been found out to be possible to construct.Laboratory air pulse test for a dry sandstone and a wet sandstone has been carried out, and two-phase inversion method is proved to be useful for pressure matching. Also field pressure data of hydropulse test in free water zone has been used to see the applicability of the code, and two-phase inversion result has compared to single-phase inversion result.

为了估计地下多相条件下的三维非均质水力特性，开发了基于拟牛顿法和两相条件最优控制方法的数值反演程序;为了评估水力脉冲层析成像估计水力参数的可靠性，开发了高效的压力变化率匹配数值算法用于单相反演，并计算了规范估算的水力特性的置信区间。通过分析研究，找到了构造两相数值反演压力变化率匹配算法的可能性，并进行了干砂岩和湿砂岩的室内空气脉冲试验，验证了两相反演方法在压力匹配中的有效性。利用无水区水力脉冲试验的现场压力数据验证了该规范的适用性，并将两相反演结果与单相反演结果进行了比较。

项目成果

登坂博行, 増本 清: "生産情報による油層キャラクタリゼーション-自動ヒストリーマッチングの可能性と課題" 石油技術協会誌. 62・6. 521-528 (1997)

Hiroyuki Tosaka、Kiyoshi Masumoto：“基于生产信息的油藏表征 - 自动历史匹配的可能性和挑战”日本石油技术协会杂志 62・6（1997）。

増本清, 登坂博行, 小島圭二: "多点非定常圧力とその時間変化率の同時自動マッチングによる岩盤水理特性逆解析" 日本地下水学会誌. 40・3. 273-287 (1998)

Kiyoshi Masumoto、Hiroyuki Tosaka、Keiji Kojima：“通过多点非稳定压力及其随时间变化率的同时自动匹配进行岩石水力特性反演”，日本地下水水文学会杂志 40・3。 (1998)

増本 清 他: "複数孔間の圧力干渉試験により得られる空間情報の推定精度評価の試み" 日本応用地質学会平成10年度研究発表会講演論文集. 309-312 (1998)

Kiyoshi Masumoto 等人：“尝试评估通过多个孔之间的压力干扰测试获得的空间信息的估计准确性”日本应用地质学会 1998 年研究报告论文集 309-312 (1998)。

K.MASUMOTO,H.TOSAKA and K.KOJIMA: "New Algorithm for Identifying Hydraulic Property Distribution of Rock Mass by Simultaneous Fitting of Pressure and Its Change rate at Multi-Points in Multi-Wells (in Japanese with English abstract)" J.Japan Groundwater H

K.MASUMOTO，H.TOSAKA 和 K.KOJIMA：“通过同时拟合多井多点压力及其变化率来识别岩体水力特性分布的新算法（日文，英文摘要）” J.

K.MASUMOTO,H.TOSAKA,K.KOJIMA: "Study on Identifiability of Permeability Distribution in Heterogeneous Porous Media by Hydropulse Tomography Technique (in Japanese with English abstract)" Annual Report of Engineering Research Institute School of Engineerin

K.MASUMOTO,H.TOSAKA,K.KOJIMA：“利用水脉冲断层扫描技术对异质多孔介质中渗透率分布的识别性研究（日文，英文摘要）”工程研究院工学院年报