稠油油藏尿素泡沫蒸汽驱油藏适应性实验
Experimental evaluation of reservoir applicability of carbamide and foaming agent assisted steam flooding in heavy oil reservoirs
针对目前尿素泡沫辅助蒸汽驱对稠油油藏的适应性研究的不足，以河南油田CJ稠油区块储层参数为研究对象，利用尿素泡沫辅助蒸汽驱的三维物理模拟实验，通过控制变量法，研究了油藏压力、含油饱和度、油层厚度和原油黏度对尿素泡沫辅助蒸汽驱采出程度的影响，得出尿素泡沫辅助蒸汽驱适用的范围为：适当的油藏压力（3.5 MPa为最佳），含油饱和度大于51%，较厚的油层（实验中大于15 cm），原油黏度小于30000 mPa?s。利用实验结果研究CJ稠油区块某一井组5口井进行尿素泡沫辅助蒸汽驱的先导试验，结果取得了明显的经济效益。室内实验及油田现场应用证明，尿素泡沫辅助蒸汽驱是稠油开发的一项可行性技术。
iming at the lack of the reservoir applicability of carbamide and foaming agent assisted steam flooding (CFAAS), a series of CFAAS experiments were conducted with the 3-D physical simulation by control-variable-method to study the effect of reservoir pressure, oil saturation, oil layer thickness and oil viscosity on CFAAS recovery, the following conclusions of CFAAS applicable ranges were derived: a proper reservoir pressure (3.5MPa is the best), an oil saturation larger than 51%, a thick oil layer (thicker than 15cm in the experiments), an oil viscosity less than 30000mPa?s. Using the experimental results on a heavy oil block, a five spot pattern of CFAAS test was performed and an obvious economic benefit was obtained. Laboratory experiments and field application have proven that CFAAS is a feasibility technology of heavy oil development.
沈德煌、李文会、刘鹏程、钱宏图
油气田开发
稠油油藏尿素泡沫辅助蒸汽驱油藏压力含油饱和度油层厚度原油黏度
heavy oil reservoirCFAASreservoir pressureoil saturationoil layer thicknessoil viscosity
沈德煌,李文会,刘鹏程,钱宏图.稠油油藏尿素泡沫蒸汽驱油藏适应性实验[EB/OL].(2015-07-16)[2025-08-04].http://www.paper.edu.cn/releasepaper/content/201507-164.点此复制
评论