摘要
研制了一种具有高选择性封堵性能的阳离子乳化沥青堵剂SW-1。单岩心和双并联岩心驱替实验表明:SW-1能选择性进入水层,堵水率为97.8%,封堵强度达2.8 MPa/m,耐冲刷性好;而仅使油相渗透率下降8.9%,对油层伤害较小,具有较高的选择性封堵能力。
Developing a highly selective blocking agent（ SW-I ） which is cationic emulsified asphalt. Sin- gle-core and dual-parallel core flooding experiments show that： SW-1 can be given preferential access to the water layer,and the water shutoff rate is 97.8%, the strength of plugging up to 2.8 MPa/m, at the same time it has a good resistance to erosion. The oil permeability only decreased by 8.9% ,it less damage to the reservoir. The above data show that SW-1 has a high selective plugging.
出处
《应用化工》
CAS
CSCD
2014年第2期236-237,240,共3页
Applied Chemical Industry
基金
四川省青年科技基金(2011JQ0045)
油气藏地质及开发工程国家重点实验室(西南石油大学)开放课题(PLN1136)
关键词
乳化沥青
选择性
堵水
emulsified asphalt
selectivity
water plugging
