Clustering Perforation And Bridge Plug Packer Technology Research

At present,China's energy shortage is serious,especially in the increasingly prominent contradiction between supply and demand of oil and gas.unconventional oil and gas exploration and development is becoming more and moreconcerned.In the current downturn in oil pricesand development of unconventional oil and gas resources of our country is under the condition of imperfect technical reserves.In the process of the development of unconventional energy,high construction cost of unconventional oil and gas development is due to the imperfect and copying the introduction to the technology.The construction safety and efficiency is not high also.The domestic clustering perforation and bridge plug technology at the exploration stage,has not yet formed series products.In order to solve such problems,be badly in need of researching and development national conditions of cluster perforating and bridge plug technologysuited to China.Improve the efficiency of perforation fracturing operation,shorten well completion period,provide the completion of form a complete set for developing unconventional reservoir exploration engineering and technology,to meet the needs of the unconventional reservoir exploration and development.This paper based on the analysis of the existing cluster perforating and bridge plug technology,combining with the characteristics of domestic unconventional reservoirs and organic combination of both.Determined the suitable cluster perforation and bridge plug technology supporting technology research direction of China,including: pipe string design optimization of pump control technology research,voltage controlled switch type cluster perforating technology research,coded cluster perforation technology research,cluster perforating without primary explosive safety ignition technology research,clusterperforating supporting reliability and shock absorption technology research,cluster perforating gun perforation technology research,bridging technology supporting technology research,clusterperforating and bridge plug well head pressure control system supporting technology research,cluster perforating and bridge plug technology supporting propulsion technology research,cluster perforating and bridge plugtechnologysupporting pushing technology,cluster perforating and bridge plugtechnologysupportingdepth correctiontechnology,cluster perforating and bridge plugtechnologysupportingthe exception handlingtechnology.Finally,field tests were carried out in the relevant fields,the results showed that: the research and development of the cluster perforation and bridge plug matching technology has the advantages of low cost,high safety,high efficiency characteristics from abroad construction technology,and has broad application prospects.It can be effective to provide technical support for the development of domestic unconventional oil and gas reservoirs.The results have important theoretical significance and practical value for the development of unconventional oil and gas reservoirs in China.