复合变性淀粉降滤失剂的合成与评价  

Synthesis and evaluation of composite modified starch filtrate reducer

作　　者：魏君[1] 于洪江[1] 王和良[2] 贺晓云[1] 拓丹 

机构地区：[1]西安石油大学化学化工学院,陕西西安710065 [2]大港油田第二采油厂,河北黄骅061103

出　　处：《应用化工》2017年第1期197-198,202,共3页Applied Chemical Industry

基　　金：国家自然科学基金项目(51374170)

摘　　要：以玉米淀粉为原料,3-氯-2-羟基丙基磺酸钠为醚化剂,环氧氯丙烷为交联剂,得到复合变性淀粉降滤失剂(CES)。CES加入量为1.5%时,在淡水基浆、4%盐水基浆、饱和盐水基浆中API失水分别为6.1,6.7,7.1 m L,在180℃下仍具有较好的抗温能力。在含有40%CaCl_2的淡水基浆中,API失水为9.1 m L,抗钙性能较好。Corn starch as raw material,3-chloro-2-hydroxypropyl sulfonate as etherifying agent,epichlorohydrin as the crosslinking agent,to obtain a composite modified starch Filtrate Reducer（ CES）. When CES added in an amount of 1. 5%,in fresh water based slurry,4% of the salt water based slurry,a saturated brine based slurry,API water loss was 6. 1,6. 7 and 7. 1 m L,respectively; at 180 ℃ still has good temperature resistance. In fresh water based slurry containing 40% Ca Cl2 in,API water loss is 9. 1 m L,has good resistance to calcium properties.

关 键 词：变性淀粉 醚化 交联 降滤失剂 

分 类 号：TQ314.1[化学工程—高聚物工业] TE254.4[石油与天然气工程—油气井工程]