细粉砂岩油藏稳砂剂的性能评价与应用  

Evaluation and application on the behavior of sand control agent SSA-1 in fine-sliltsone oil reservoir

作　　者：荣雁[1] 高斌[2] 张冰洋[2] 李维忠[2] 夏伯儒[2] 

机构地区：[1]中国石化股份胜利油田分公司新疆勘探开发中心,山东东营257000 [2]中国石化股份胜利油田分公司采油工艺研究院,山东东营257000

出　　处：《油气地质与采收率》2008年第3期108-110,共3页Petroleum Geology and Recovery Efficiency

基　　金：中国石化股份胜利油田分公司重点科技攻关项目"胜利油田细粉砂岩油藏固砂工艺技术研究"(YKS0405)

摘　　要：针对胜利油区细粉砂岩油藏研制的SSA-1型稳砂剂具有地层伤害率低、固结强度较高、可进行油层深部稳砂的特点。其稳砂原理是侧链功能基团与二氧化硅表面大量的羟基发生化学反应形成稳定的氢键,通过SiOSi及COC的共价化学键将二氧化硅无机相与稳砂剂分子有机相连接起来,并形成均匀的分子膜,从而将地层流砂或粘土颗粒固结在原地达到稳砂的目的。SSA-1型稳砂剂地下合成分子膜的性能将直接影响其稳砂能力,室内通过对成膜机理、结构表征、膜的溶胀性、机械性和粘结力等的实验研究,证实了SSA-1型稳砂剂地下合成分子膜性能优越。现场应用于8口井,防砂成功率达100%,至2007年5月,8口井累积增产原油1.1×104t。Sand control agent SSA-1 developed for the fine-siltstone reser-voir in Shengli Oilfield has the features of low degree of forma-tion damage,high consolidation strength and in-depth sand con-trol operations in oil-bearing formations. Functional group of side chain of SSA-1 reacts on the large numbers of hydroxyl on the surface of SiO2 ,then the stable hydrogen bond forms. The cova-lent bonds of Si-O-Si and C-O-C connect the inorganic SiO2 with the organic molecule of the SSA-1 to form an even mo-lecular film to fasten drifting sand or clay particles in original place. The properties of the synthetic molecular film underground will directly affect the sand firming behavior. Experimental study on the mechanism,structural characteristic,swelling property,mechanical performance and binding force of the film testified the superior properties of the molecular film. SSA-1 has been used in 8 wells successfully and the sand control effect is obvi-ous.

关 键 词：细粉砂 稳砂 固砂 功能基团 低伤害 

分 类 号：TE358.1[石油与天然气工程—油气田开发工程]