| 一种利用岩石强度刻划试验确定岩石PDC钻头可钻性级值的方法 |
| |
| 引用本文： | 陈军海,王怡,韩艳浓,曾义金,孙连环. 一种利用岩石强度刻划试验确定岩石PDC钻头可钻性级值的方法[J]. 中国石油大学学报(自然科学版), 2017, 0(2): 94-99 |
| |
| 作者姓名： | 陈军海 王怡 韩艳浓 曾义金 孙连环 |
| |
| 作者单位： | 页岩油气富集机理与有效开发国家重点实验室,北京 100101;中国石化石油工程技术研究院,北京 100101,页岩油气富集机理与有效开发国家重点实验室,北京 100101;中国石化石油工程技术研究院,北京 100101,页岩油气富集机理与有效开发国家重点实验室,北京 100101;中国石化石油工程技术研究院,北京 100101,页岩油气富集机理与有效开发国家重点实验室,北京 100101;中国石化石油工程技术研究院,北京 100101,页岩油气富集机理与有效开发国家重点实验室,北京 100101;中国石化石油工程技术研究院,北京 100101 |
| |
| 基金项目： | “十二五”国家重大专项(2011ZX05005-006)；国家自然科学基金项目(51490653) |
| |
| 摘 要： | 基于微钻岩石可钻性试验与岩石强度刻划试验破岩机制一致性,通过开展试验获得两种试验岩石破碎比功的转化关系,结合岩石PDC钻头可钻性级值求取方法,建立利用刻划岩石破碎比功求取岩石PDC钻头可钻性级值模型,形成一种通过刻划岩心表面得到岩石PDC钻头可钻性级值剖面的方法。结果表明,该方法不但与微钻可钻性试验结果具有很好的一致性,还充分表征了矿物组分、胶结强度、微观结构等复杂因素变化对岩石PDC钻头可钻性级值的影响,且不破坏岩心的整体结构,提高了岩心的利用率,推广应用价值高。
|
| 关 键 词： | 刻划试验 PDC钻头 破碎比功 岩石可钻性级值 岩石破碎 |
| 收稿时间： | 2016-08-03 |
A new method for assessing rock 's drillabity for PDC bits via a scratch testing |
| |
| CHEN Junhai,WANG Yi,HAN Yannong,ZENG Yijin and SUN Lianhuan. A new method for assessing rock 's drillabity for PDC bits via a scratch testing[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 2017, 0(2): 94-99 |
| |
| Authors: | CHEN Junhai WANG Yi HAN Yannong ZENG Yijin SUN Lianhuan |
| |
| Affiliation: | State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 100101,China;SINOPEC Research Institute of Petroleum Engineering,Beijing 100101,China,State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 100101,China;SINOPEC Research Institute of Petroleum Engineering,Beijing 100101,China,State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 100101,China;SINOPEC Research Institute of Petroleum Engineering,Beijing 100101,China,State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 100101,China;SINOPEC Research Institute of Petroleum Engineering,Beijing 100101,China and State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 100101,China;SINOPEC Research Institute of Petroleum Engineering,Beijing 100101,China |
| |
| Abstract: | A new method for assessing rock ''s drillabity for PDC bits via a scratch testing was proposed in coupling with the rock breaking mechanisms using micro PDC bits and scratch blades. In this study, a large numbers of micro PDC bit drilling and scratch testing experiments were conducted in order to establish the correlation of the crushing work ratio between the two types of rock breaking processes, and a new rock ''s drillability model for PDC bits was established based on the crushing work ratio of the rock scratch test. The new method can provide precise assessments of rock ''s drillability for PDC bits and is in consistency with the micro PDC bit testing. The scratch testing not only can capture the effects of intrinsic heterogeneity of rocks on drillability, but also can keep the integrity of the rock cores. |
| |
| Keywords: | scratch test PDC dill bit crushing work ratio rock ''s dillability rock breaking |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国石油大学学报(自然科学版)》浏览原始摘要信息 |
|
点击此处可从《中国石油大学学报(自然科学版)》下载全文 |
|
