Development of method for estimation of high permeable fractures and their distribution by using the multiplet-clustering analysis

开发利用多重聚类分析估计高渗透裂缝及其分布的方法

• 批准号: 20360402
• 负责人: MORIYA Hirokazu
• 金额: $ 6.24万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20360402/
• 关键词: 地球計測; 地熱; AE; マルチプレット; 微小地震; き裂; 透水性; 断層; せん断滑り

I have carried out the development of the method for estimation of high permeable fracture and their distribution in geothermal reservoir based on the multiplet-clustering analysis, where the analysis of induced AE data, comparison of results of AE data analysis and logging data analysis, and development of a parameter to identify high permeable fractures in reservoir were performed. In this study, I first have analyzed the induced microseismic AE multiplet by using the Weibull distribution to clarify the stochastic property of event occurrence, and shown that the occurrence of similar microseismic events (AE multiplet events)is quasi-periodic rather than random, and I inferred it to be related to the fluid flow rate in fractures. I have also suggested a parameter using event energy, injected fluid volume and time interval of event occurrence, and examined the feasibility of parameter using the induced microseismic events during a hydraulic stimulation at Soult field, France.

开发了基于多重聚类分析的地热储层高渗透裂缝及其分布估计方法，对诱发声发射数据进行分析，并将声发射数据分析结果与测井数据分析结果进行对比，开发了储层高渗透裂缝识别参数。在本研究中，我首先利用Weibull分布对诱发微震声发射多波进行了分析，阐明了事件发生的随机性，发现类似微震事件（声发射多波事件）的发生是准周期性的，而不是随机的，并推断其与裂缝内流体流速有关。我还提出了一个使用事件能量、注入流体体积和事件发生时间间隔的参数，并在法国sout油田的水力增产过程中使用诱发微地震事件验证了参数的可行性。

项目成果

Interpretation of reservoir creation process by super-resolution mapping of microseismic multiplets collected at Basel

通过巴塞尔微震多次波超分辨率测绘解释储层形成过程

• 发表时间: 2010
• 期刊: Switzerland.[Proc. World Geothermal Congress 2010
• 作者: H. Asanuma;Y. Kumano;H. Moriya;H. Niitsuma;M. Haring
• 通讯作者: M. Haring

Estimation of crustal structure in Horonobe area Hokkaido, Japan, using multiplet-clustering analysis

使用多重聚类分析估计日本北海道幌延地区的地壳结构

• 发表时间: 2010
• 期刊: Journal of Acoustic Emission
• 作者: H. Moriya;K. Asamori;I. Kitamura;H. Hotta;H. Ohara and T. Niizato
• 通讯作者: H. Ohara and T. Niizato

Evaluation of fluid flow in enhanced geothermal reservoirs based on induced microseismic multiplets

基于诱发微震多次波的强化地热储层流体流动评价

• 发表时间: 2010
• 期刊: Trans. Geothermal Resources Council
• 作者: Moriya;H.;H. Niitsuma;and R. Baira
• 通讯作者: and R. Baira

Identification and classification of similar seismic events by using phase-only correlation technique.

使用纯相位相关技术对类似地震事件进行识别和分类。

• 发表时间: 2011
• 期刊: Proc. 10th SEGJ International Symposium
• 作者: 羽柴公博;雷鳴;大久保誠介;福井勝則;羽柴公博;H. Moriya;H. Moriya
• 通讯作者: H. Moriya

Estimation of crustal structure in Horonobe area, Hokkaido, Japan, by using multiplet-clustering analysis

利用多重聚类分析估计日本北海道幌延地区的地壳结构

• 发表时间: 2010
• 期刊: Journal of Acoustic Emission
• 作者: Moriya;H.;K. Asamori;I. Kitamura;H. Hotta;H. Obara;and T. Niizato
• 通讯作者: and T. Niizato