摘要：Radial jet drilling (RJD) is one of the emerging hydrocarbon drilling technologies. And, the swirling abrasive waterjet (SAWJ) is expected to drill larger diameter laterals during RJD. Here, the performances and mechanisms of SAWJ breaking sandstone were studied by laboratory experiments. Results showed that the SAWJ could drill a smooth (surface roughness was 0.043 mm) & large (diameter was in 52.0–73.0 mm) circular hole on sandstone. The hole depth/volume increased as the jetting pressure, abrasive mass concentration and exposure time increased. Conversely, they decreased as the standoff distance increased. The optimal parameter combination under our experimental conditions was 30 MPa, 0 mm, 12% and 1 min. The SAWJ sandstone breaking mechanism were the erosion of cements, the integrally peeled off and broken of crystal grain. Failure mode of sandstone was mainly the tensile fracture. The key findings will provide guidance for the application of SAWJ in RJD technology. ? 2024 The Authors

ISSN号：1672-5107

卷、期、页：卷21期6页4298-4310

发表日期：2024-12-01

影响因子：0.000000

期刊分区（SCI为中科院分区）：一区

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：Petroleum Science

参与作者：郭宸睿

通讯作者：李锐

第一作者：李欢,李敬彬,王昊,黄中伟

论文类型：期刊论文

论文概要：李欢,李敬彬,郭宸睿,王昊,李锐,黄中伟，Sandstone breaking performances and mechanisms of swirling abrasive waterjet during radial jet drilling process，Petroleum Science，2024，卷21期6页4298-4310

论文题目：Sandstone breaking performances and mechanisms of swirling abrasive waterjet during radial jet drilling process