泡沫混排携砂规律实验研究  

Experimental study on sand-carrying law of foam mixed flowback

作　　者：夏禹[1] 郭宏峰[1] 杨树坤[1] 张博[1] 赵广渊[1] 

机构地区：[1]中海油田服务股份有限公司油田生产事业部增产中心,天津塘沽300459

出　　处：《石油化工应用》2017年第5期72-76,共5页Petrochemical Industry Application

摘　　要：随着海上油田开发的深入,老油田相继进入产量递减开发阶段,如何有效控制老井产量递减成为制约海上油田高效开发的关键问题。海上油田大多为疏松砂岩稠油油藏,开发过程中,易在近井地带产生泥质、细粉砂、重质组分等复合堵塞,泡沫混排解堵是一种解决这类问题井比较有效的工艺措施。但目前泡沫混排工艺在现场施工中,一些参数的选择缺乏理论支持,基于此,本文开展了泡沫混排中泡沫携砂规律实验研究,并结合实验规律指导现场工艺参数的制定与优化。实验结果表明:孔隙度、气液比和放喷压差的合理选择,对泡沫携砂能力和细粉砂排出程度有积极的影响。With the deepening of offshore oilfield development,the old oilfield has entered the stage of decreasing production development,and how to effectively control the decrease of old well production becomes the key problem to restrict the efficient development of offshore oilfield.Most of the offshore oilfields are loose sandstone heavy oil reservoirs.During the development process,it is easy to produce compound clogging of muddy,fine silt and heavy components in the near-well area.The foam mixed flowback is a kind of effective solution. However,the choice of some parameters in the field construction is lack of theoretical support, based on this,this paper carried out the experimental study on the law of foam carrying sand, combined with experimental rules to guide the development and optimization of on-site process parameters. The experimental results show that the reasonable choice of porosity, gas-liquid ratio and discharge pressure difference has a positive effect on the foam carrying capacity and the degree of fine silt discharge.

关 键 词：泡沫混排 携砂规律 室内实验 工艺参数 

分 类 号：TE53[石油与天然气工程—油气田开发工程]