西南石油大学学报(自然科学版) ›› 2010, Vol. 32 ›› Issue (6): 135-138.DOI: 10.3863/j.issn.1674-5086.2010.06.027

• 石油与天然气工程 • 上一篇    下一篇

稠油出砂规律及出砂模拟实验研究

房茂军1，2，曾祥林1，2，梁 丹1，2，孙福街1，2   

  1. 1.中海油研究总院，北京 东城 100027； 2.海洋石油高效开发国家重点实验室?中海油研究总院，北京 东城 100027
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-12-20 发布日期:2010-12-20

STUDY ON THE SANDING LAW AND SANDING PRODUCTION SIMULATION EXPERIMENT OF HEAVY OIL

FANG Mao-jun1,2，ZENG Xiang-lin1,2,LIANG Dan1,2,SUN Fu-jie1,2   

  1. 1.CNOOC Research Institute，Dongcheng Beijing 100027，China；2.State Key Laboratory of Offshore Oil Exploitation，Dongcheng Beijing 100027，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-12-20 Published:2010-12-20

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摘要： 提出依据径向流动进行室内大型出砂评价的思路，研制了油井出砂的模拟实验装置。针对渤海区域常用的金属纤维防砂管、金属网防砂管和割缝管，进行了围岩应力作用下的出砂流动实验，对地层在围岩应力状态下出砂和流量之间的变化规律进行了分析，测定了流出砂的粒径变化情况，观察和模拟了环境控制条件下的出砂行为。研究结果表明：金属网布筛管对泥质的防堵塞效果最好，割缝管次之，金属纤维防砂管对泥质较敏感，泥质含量高的情况下不宜使用金属棉防砂管；对不同防砂管产出砂进行粒度分析，产出砂粒径开始时较大，可远远超过防砂精度，最大的可超过防砂精度的2～3倍，后迅速降低，说明在防砂管周围有砂桥形成。环空周围堆满砂后，产量迅速下降，随着微小砂粒的流出，孔渗结构得到改善。金属纤维防砂管产量低，产量稳定，割缝管和金属网防砂管产量高，割缝管产量有略微下降趋势，金属网防砂管产量有波动。

关键词: 稠油, 出砂规律, 出砂装置, 防砂管, 实验研究

Abstract: Sanding evaluation by radial flow experimental study is presented and experiment instrument of sanding is developed.In view of the general purpose of metal fibre screen，mat screen and slotted screen in Bohai Oilfield，sand production experiments with surrounding rock action are carried out.Relationship between sand production and oil production rate are analyzed and particle size of sand production is measured.Sand production behavior is observed.The results show that mat screen has good function in preventing jam of clay，slotted screen takes second place，metal fibre screen is easily jammed by clay，so metal fibre screen should not be used in high clay formation.Particle size analysis for producing sand of different screens shows that particle size of sanding is bigger in early production period and continuously decreases with the experimental proceeding.The biggest partical size of sand can be 2-3 times to sand control parameters.This shows that sand bridge can be build around screens.After the filling of sand annulus between screen and formation with sand,oil production rate decreases and permeability is improved with minute sand partical producing.Producting rate of metal fibre screen is lower than that of other screens.Producting rate of metal fibre screen is sustained，while that of mat screen has fluctuating.

Key words: heavy oil, sanding law, experiment instrument of sanding, screen, experimental study

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