CAJ | 학술논문

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。
유우상규압렬기술무법실현라안완정수평정장수평단적압렬，엄중제약료유전비상규유기자원적대규모개발，위차，진행료관외봉투구활투압렬기술연구。연제료K342-142압렬봉격기、PS70-140압차활투、BS70-140투구활투、QZ-130좌봉구좌등일계렬공구，형성괄용우하남유전적다급분단압렬공예관주，괄합치밀사암압렬，만족료유전쾌속개발비상규자원적수요。
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 fractur-ing 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 fractur-ing technical string applicable to He’nan Oilifeld was generated, which is suitable for tight sandstone fracturing and satisifes the need for rapid development of unconventional resources.