石油钻采工艺2012，Vol.34Issue(2)：55-58,4.
水力喷砂射孔孔道形态研究
Research on channel pattern of hydraulic sand blasting perforation
摘要
Abstract
To further study the mechanism of hydraulic sand blasting perforation and examine the channel pattern and porous depth formed by hydraulic sand blasting perforation, a research on channel pattern of hydraulic sand blasting perforation has been carried out to observe the influence of lithology, displacement and blasting time on hydraulic sand blasting perforation and master the characteristics of fracture initiation. This paper has completed the design and manufacture of both outcrop core and cements targets, and optimized the experimental parameters and integrated tools, which were used to finish the hydraulic sand blasting perforation experiment and the fracture initiation experiment. In order to obtain more real and intuitive channel shape, the specific integrated tool has dissected and drawn the targets. These two experiments show that channels depth caused by hydraulic blasting is shallower than that induced by former laboratory experiment results. Two main channel forms resulting from hydraulic sand blasting perforation are fusiform-channel in the normal perforation target and built-up channel combing fusiform-channel with sword-channel. The two channel induced by hydraulic perforation almost symmetrical in shape. When the fracture is initiated, the depth will increase multiply, these conclusions are very reliable and helpful to further understand the mechanism of hydraulic sand blasting fracturing and improve and widespread this technology.关键词
水力喷砂射孔/裂缝起裂/孔道形态/模拟实验Key words
hydra-jetting perforation/ fracture initiation/ channel pattern/ simulating experiment分类
能源科技引用本文复制引用
李宪文,赵振峰,付钢旦,任勇,胡强法,王在强..水力喷砂射孔孔道形态研究[J].石油钻采工艺,2012,34(2):55-58,4.基金项目
中国石油天然气股份有限公司重大科技专项“水力喷射及连续油管酸化配套技术研究”(编号:2008F-1506)部分研究内容. （编号:2008F-1506）
