Study and application of fracturing techniques for continental shale reservoir in Biyang depression of Nanxiang basin

Shale gas is one of three unconventional oil and gas resources. Resources are abundant.Recent study suggests that there are conditions of shale oil and gas formation in Biyang depression of Nanxiang basin.According to the geological characteristics of continental shale reservoir in Biyang depression,study of fracturing techniques for continental shale reservoir is performed.Al well,for instance,by studying the perforation technology,fracturing fluid systems, construction parameters,fracturing procedures optimization and research,it is established fracturing technology to suit continental shale reservoir.By implementation in Al well, commercial oil flows 4.68 m3/d can be obtained,thus turning Biyang depression into obtaining continental shale regions in china firstly.The successful application of this technique has great meaning for fracturing continental shale reservoir for Henan oilfield and domestic continental shale reservoir fracturing reformation.