Sandstone breaking performances and mechanisms of swirling abrasive waterjet during radial jet drilling process

被引：0

作者：

Li, Huan ^{[1
]}

Li, Jing-Bin ^{[1
]}

Guo, Chen-Rui ^{[1
]}

Wang, Hao ^{[1
]}

Li, Rui ^{[1
]}

Huang, Zhong-Wei ^{[1
]}

机构：

[1] China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China

来源：

PETROLEUM SCIENCE | 2024年 / 21卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Development of unconventional oil and gas; Abrasive waterjet; Radial jet drilling; Sandstone breakage; FRACTURE; MODEL;

D O I：

10.1016/j.petsci.2024.05.028

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

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. (c) 2024 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/ 4.0/).

引用

页码：4298 / 4310

页数：13