论文成果
Field test of radial jet drilling technology in a surface formation
摘要:The radial jet drilling (RJD) technology is an efficient formation stimulation and injection technology that drills multiple laterals perpendicular to the central well. Extensive research has been on jet rock breaking, lateral extension, productivity prediction, and technological processes. However, little public literature illustrates the overall drilling performance of the RJD systems. Herein, a field test is conducted in the surface sandstone formation. Eight laterals are successfully drilled using the self-rotating multi-orifices nozzle with a 35-40 MPa (5.08-5.80 ksi) jet pressure. The cumulative length of the eight laterals is 21.1 m (69.2 ft), with the longest one being 5.7 m (18.7 ft). The lateral diameter is 50 mm (1.97 in), drilled at the fastest drilling rate of 3.6 m/h (11.8 ft/h). The auxiliary traction device can provide extra feed-in force to the high-pressure hose. The lateral trajectories are measured with their accuracy confirmed by the coring well. During the field test, a lateral trajectory up-warping problem is found, of which the possible causes and the suggestions are provided. According to the internal shape of the lateral obtained by endoscopic imaging, the lateral section exhibits a ring structure, indicating the high rock breaking efficiency of the self-rotating multi-orifices nozzle. The formation anisotropy and natural fracture have little influence on the lateral trajectory but affect the lateral section shape. The research results prove the reliability of the RJD system developed and can contribute to future development and application of RJD technology.
关键字:Radial jet drilling; Well stimulation; Multi -lateral drilling; Trajectory measurements; Sandstone reservoir
ISSN号:0920-4105
卷、期、页:卷: 218
发表日期:2022-11-01
影响因子:4.345800
期刊分区(SCI为中科院分区):三区
收录情况:SCI(科学引文索引印刷版),地学领域高质量科技期刊分级目录(国外T1),SCIE(科学引文索引网络版)
发表期刊名称:JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
参与作者:黄哲
通讯作者:戴佳成,程康
第一作者:李敬彬,李根生,黄中伟
论文类型:期刊论文
论文概要:李敬彬,黄哲,李根生,黄中伟,戴佳成,程康,Field test of radial jet drilling technology in a surface formation,JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,2022,卷: 218
论文题目:Field test of radial jet drilling technology in a surface formation