摘要：Shale bedding planes arise with the complexity of rock removal by the PDC cutters. A series of single cutter experiments were conducted to understand the effects of bedding planes of shale on chip formation behaviors. Six bedding inclinations were taken into account by recording the variation of cutting force, cutting size, topography of debris, and high-speed images. Results demonstrate that the average cutting force highly correlates with bedding inclination where a parabolic relation is observed. The maximum value of cutting force is presented while perpendicular cutting to the bedding plane. Crushing and chipping are approved to be two mechanisms of rock removal of the laminated shale. Particularly, the bedding plane controls the chip formation behaviors. While the cutting force is perpendicular to shale bedding, the crushing dominates the rock removal process in which more powder debris are created. While the cutting force is parallel to shale bedding, the chipping dominates the rock removal and more chunk-like cuttings are generated. Shear cracking along the weak bedding planes promotes chipping that is controlled by the bedding inclination. In summary, the bedding plane attributes to the variation of cutting force response, cutting size distribution, and even rock removal mechanisms.
© 2019

ISSN号：0920-4105

卷、期、页：v 185,

发表日期：2020-02-01

影响因子：3.705700

期刊分区（SCI为中科院分区）：三区

收录情况：SCIE（科学引文索引网络版）,EI（工程索引）

发表期刊名称：Journal of Petroleum Science and Engineering

参与作者：高书阳,张彦龙

通讯作者：程镇

第一作者：盛茂,史怀忠

论文类型：期刊论文

论文概要：盛茂,程镇,高书阳,史怀忠,张彦龙，Shale bedding planes control rock removal behaviors of PDC cutter: Single cutter experiment，Journal of Petroleum Science and Engineering，2020，v 185,

论文题目：Shale bedding planes control rock removal behaviors of PDC cutter: Single cutter experiment