Multi-Stage Fracgun SDP Perforation Technology for Deep Horizontal Wells

2nd International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Zhao, Xu^1^2

Sinopec Research Institute of Petroleum Engineering, Beijing

100101, China^1

State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing

100101, China^2

关键词: Construction technique;    Deep horizontal wells;    Deep penetration;    Geological conditions;    Production changes;    Site construction;    Technical principle;    Yield-increasing;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/490/5/052023/pdf
DOI  :  10.1088/1757-899X/490/5/052023

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Multi-stage fracgun SDP perforation technology for deep horizontal wells developed in recent years is to form a plurality of radial hole in reservoir through deep penetrating perforation technology and gas fracturing technology, which could enlarge the drainage area and reduce production pressure drop. This paper analyzes the technical principles, and then proves the mechanism with well and layer selection of tests wells through technical applicability. On the basis of these, Deep Composite Directional perforation design plan of the test well was proposed, and the on-site operation situation was illuminated from the aspect of field test preparation and construction techniques. The testing results showed that both wells site construction had met the requirement of the design and made the yield increasing effect at some certain degree, however, there are also a large production change, it is thought that the key to the successful implementation of deep penetration composite directional perforation in horizontal well is the control of perforation depth and orientation, the application results are determined by well situation and reservoir layer, The design should be based on the technical adaptability of reservoir geological conditions and engineering conditions for a detailed demonstration.