管外封投球滑套压裂技术

Fracturing technology by ball dropping sliding sleeve outside casing

董建立 马宏伟 肖诚诚 杨康敏 王新志 高俊山

DONG Jianli MA Hongwei XIAO Chengcheng YANG Kangmin WANG Xinzhi GAO Junshan

河南油田石油工程技术研究院，河南郑州　450000

Research Institute of Petroleum Engineering Technology of He’nan Oilfield Company, Zhengzhou 450000, China

由于常规压裂技术无法实现裸眼完井水平井长水平段的压裂，严重制约了油田非常规油气资源的大规模开发，为此，进行了管外封投球滑套压裂技术研究。研制了K342-142 压裂封隔器、PS70-140 压差滑套、BS70-140 投球滑套、QZ-130 坐封球座等一系列工具，形成适用于河南油田的多级分段压裂工艺管柱，适合致密砂岩压裂，满足了油田快速开发非常规资源的需要。

Due to the fact the conventional fracturing technology cannot fracture the long horizontal section in open-hole completed horizontal well, which severely restricts the large-scale development of unconventional oil and gas, research was carried out on fracturing technology by ball dropping sliding sleeve outside the casing. A series of tools like K342-142 fracturing packer, PS70-140 pressure difference sliding sleeve, BS70-140 ball dropping sliding sleeve and QZ-130 setting ball seat were developed, and a multi-stage fracturing technical string applicable to He’nan Oilfield was generated, which is suitable for tight sandstone fracturing and satisfies the need for rapid development of unconventional resources.

10.13639/j.odpt.2014.05.023