Application of close cut volume fracturing in tight oil horizontal Wells

No.10 Oil Production Plant, Daqing Oilfield Co., LTD., Daqing 166405, China

Abstract

S tight reservoir is rich in oil and gas and has good development potential. However, the reservoir lacks good physical property, strong heterogeneity, tight lithology and complex reservoir formation conditions, and the fracturing operation is characterized by lack of good fracture complexity and difficulty in initiation. For the geological characteristics of the reservoir and the difficulties of reconstruction, we actively follow the principle of fracture-controlled reserves, broaden the understanding of unconventional volume fracturing, and integrate cutting fracturing technology in the long-term practice process. The combination of cluster perforation, plug segmentation, reverse mixed injection and other methods can fully improve the fracture initiation and extension effect of multiple clusters. The combination of sand addition technology and smooth water to replace guar gum, promote the laying quality of fracture proppant to be fully improved, promote the formation to further achieve the energy storage and increase goal, tight oil layer to achieve the volume transformation goal, and promote the long-term, stable effect of fracturing reconstruction.