基于阵列声波测井的井下多尺度压裂效果评价方法
Evaluation Method of Downhole Multi-Scale Fracturing Effect Based on Array Acoustic Logging
李宁 1刘鹏 1范华军 2胡江涛 3武宏亮1
作者信息
- 1. 中国石油勘探开发研究院,北京 100083
- 2. 中国石油大学(北京)地球物理学院,北京 102249
- 3. 成都理工大学地球物理学院,四川成都 610059
- 折叠
摘要
为有效监测水力压裂效果、提高储层压裂效果评价精度,基于阵列声波测井资料的井下压裂效果评价方法,采用反射斯通利波提取和成像技术定量表征近井筒压裂缝,建立适用于测井观测系统的叠前深度偏移成像算法,以实现远井压裂缝的高精度成像,形成了基于阵列声波测井的井下多尺度压裂效果评价方法,并在中国西部某油田X1 水平井成功应用.研究表明,基于阵列声波测井资料评价的压裂缝发育程度与压裂液注入量呈正相关关系,并且压裂缝最为发育层段与地震蚂蚁体属性图中天然裂缝发育位置一致.基于阵列声波测井的井下压裂效果评价方法的提出,对表征井周数十米范围内不同尺度压裂缝的发育情况具有重要意义,对更好地发挥水力压裂技术对能源勘探开发行业的支撑作用具有一定指导意义.
Abstract
In order to effectively monitor the hydraulic fracturing effect and improve the evaluation accuracy of reservoir fracturing,an evaluation method of the downhole fracturing effect based on array acoustic logging data was adopted.The extraction and imaging technologies of reflected Stoneley wave were used to quantitatively characterize near-wellbore fractures,and a pre-stack depth migration imaging algorithm suitable for logging observation systems was proposed,achieving high-precision imaging of fractures in far from wells.In addition,an evaluation method of multi-scale fracturing effect based on array acoustic logging was developed and applied in horizontal well X1 in an oilfield in western China.The results show that the development degree of fractures evaluated based on array acoustic logging data is positively correlated with the injection amount of fracturing fluid,and the most developed zone of fractures is consistent with the development location of natural fractures in the seismic ant attribute map.The evaluation method of the downhole fracturing effect based on array acoustic logging is of great significance to characterize the development of fractures of different scales within tens of meters around the well,and it has certain guiding significance to better play the supporting role of hydraulic fracturing technologies for energy exploration and development industry.
关键词
多尺度压裂/水力压裂/压裂效果/评价方法/声波测井/斯通利波Key words
multi-scale fracturing/hydraulic fracturing/fracturing effect/evaluation method/acoustic logging/Stoneley wave引用本文复制引用
基金项目
中国石油天然气集团有限公司科学研究与技术开发项目(2021DJ4002)
&&(2022DJ3908)
出版年
2024
NETL
NSTL
万方数据