关键词: 水平井, 分段压裂, 发展现状, 研发方向

Abstract: With Horizontal well put into application on a large scale, many foreign companies have tested phased fracturing technology for horizontal well since 2002. This technology is basically perfected and suitable for different well completion conditions after a decade of development. The main phased horizontal well fracturing technology can be classified into three categories: hydraulic jet phased fracturing technology, open-hole packer phased fracturing technology and quick drilling bridge-plug phased fracturing technology. Of those, open-hole packer phased fracturing technology finds widest application. Starting from 2007, phased horizontal well fracturing technology became the main technology for non-conventional oil and gas development and was put into application on a large scale in North America. Currently, more than 30 foreign companies are available for providing phased horizontal well fracturing equipment and technological service. Those companies acquired this technology mainly through independent research and acquisition. There will be four development trends for phased horizontal well fracturing technology in the future——high diversion fracturing, phase-multiplied fracturing, screen fracturing and sweet spot detecting while fracturing.

Key words: horizontal well, phased fracturing, current development conditions, study orientation