超短半径水平井喷射钻井机理任建民（江汉机械研究所）用钻水平井的方法提高油气田采收率的尝试，早在本世纪２０年代就开始了。目前，水平井钻井技术已从专利研究发展到钻井实践。我国东部油田，对易开采的油气藏大都进行了充分的开发，但还有不少较难开采的油层，需用钻... Short-radius horizontal well jet drilling REN Jian-min (Jianghan Institute of Machinery) The attempt to increase oil and gas field recovery by drilling horizontal wells began as early as the 1920s. At present, horizontal well drilling technology has been developed from patent research to drilling practice. Most oil and gas reservoirs in the eastern part of China have been fully exploited, but there are still many difficult to ...