On some studies about the dynamic mechanisms of carbon monoxide flow and diffusion during high energy gas fracturing
High energy gas fracturing (HEGF) technique has been one of central stimulating measures to enhance oil recovery in low permeability reservoirs. But, in recently few years, some serious CO poisoning accidents took place in oil fields here in china. Its very important to reveal the dynamic mechanisms of carbon monoxide flow and diffusion to operating safety during high energy gas fracturing. In this paper, some dynamic mechanisms of Carbon Monoxide CO flowing inside an oil wellbore and diffusion on the top of the well during high energy gas fracture were studied with fluid/gas hydrodynamics. The CO flow model within a well-bore and the diffusion model in air were established. The key factors affecting CO flow and diffusion such as well-bore pressure, gasoil ratio, wind speed, leakage speed and airpermanence were inspected with mathematical simulation. It will be of significance to provide an important guidance for monitoring and preventing CO poisoning accidents during high energy gas fracturing.
low permeability high energy gas fracture CO flow/diffusion numerical model
Pu Jingyang Yang Yue Pu Chunsheng Zou Hongjiang
School of petroleum engineering, China University of Petroleum, Qingdao, Shandong, P.R. of China, 26 Shaanxi yanchang oil company,Yanan,Shaanxi, P.R. of China,716000 School of petroleum engineering, China University of Petroleum, Qingdao, Shandong, P.R. of China, 26 Engineering and Technology Institute, Chongqing Oil company, Xi an, P.R. of China, 710069
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
421-430
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）