CAJ | 학술논문

水平井分段压裂工艺技术作为有效开采致密砂岩的技术措施，在 Q 地区率先应用。以 Q7P1井为例，针对地层储层特点，分析了水平井裸眼滑套分段压裂改造的技术难点；从裂缝分段优化、压裂管柱、压裂液体系优选，以及施工规模等方面阐述了该工艺技术的现场应用情况，为下步致密砂岩水平井的压裂改造提供参考。
수평정분단압렬공예기술작위유효개채치밀사암적기술조시，재 Q 지구솔선응용。이 Q7P1정위례，침대지층저층특점，분석료수평정라안활투분단압렬개조적기술난점；종렬봉분단우화、압렬관주、압렬액체계우선，이급시공규모등방면천술료해공예기술적현장응용정황，위하보치밀사암수평정적압렬개조제공삼고。
As an effective exploitation technology of tight sandstone,the multistage fracturing technique for horizontal well was firstly applied in Qiaohekou area.Taking well Q7P1 as an example,technology difficulties of the multistage fractu-ring for horizontal well having open -hole sliding -sleeve were analyzed on the basis of reservoir characteristics.This pa-per introduces in detail the field application of the technology from aspects of subsection optimization of fractures,fracturing string,selection of fracturing fluid system,and conduction scale,etc.,which provides a reference for the next step of fractu-ring to tight sandstone horizontal wells.