第20卷第4期
中国石油勘探
CHINA PETROLEUM EXPLORATION
Dol；10.3969/j.issn.1672-7703.2015.04.007
矿物油基钻井液低剪切流变行为
调节技术研究
张现斌1赵冲1,2王伟忠＇黄达全＇邱正松田增艳
2015年7月
（1中国石油集团激海钻探工程有限公司泥浆技术服务分公司，2中国石油大学（华东）石油工程学院）
摘要：为了提高有机土在低芳香烃含量矿物油中的凝胶性质，研制了不同结构的流型调节剂，并对矿物油基钻井液的常规性能、低剪切速率黏度、线性黏弹性和高温高压流变性进行了实验研究。结果表明，含有聚酯酰胺型（BZ-ORM-I）、聚酰胺基胺型（BZ-ORM-Ⅱ）和烷氧基胺型（BZ-ORM-Ⅲ）等流型调节剂的矿物油基钻井液，
矿物油基钻并液弹性模量G’大于黏性模量G”，聚酰胺基胺型与烷氧基胺型流型调节剂具有明显的协同作用，高温高压条件下动切力和低剪切速率动切力较高。同时含有酰胺基、胺基和烷氧基的流型调节剂主要调节矿物油基钻井液的凝胶结构，使之具有良好的悬浮性能，并保持合适的弱凝胶性质。
关键词：矿物油基钻井液；流型调节剂；低剪切速率流变性；线性黏弹性；加重材料沉降
中图分类号：TE254
文献标识码：A
TechnologiestoModifyLow-shearRateRheologyBehaviorsofMineralOil
BasedDrillingFluids
Zhang Xianbin', Zhao Chong'2,Wang Weizhong',Huang Daquan',Qiu Zhengsong,Tian Zengyan
(I Drilling Fluids Technology Service Company, BHDC, CNPC; 2 School of Petroleum Engineering
China University of Petroleum (East China)
Abstract: In order to improve the gelling behaviors of organic clay in mineral oil with low aromatic hydrocarbon content, several rheology modifiers are developed with different functional groups. A series of experiments are performed on mineral oil based drilling fluids to identify their general properties, low-shear rate viscosity, linear viscoelasticity and high temperature/high pressure rheology. It is shown that the mineral oil based drlling fluids containing rheology modifiers (e.g, polyester amide (BZ-ORM- I ), polyamidoamine (BZ-ORM- II ) and alkanolamine(BZ-ORM-II) present higher low-shear rate viscosity when the density is 1.30 g/cm'. The viscosities corresponding to shear rate of 1.7s and 0.17s’ meet the requirements of the “dynamic settling window" theory and elastic modulus G' is higher than viscous modulus G*. An obvious synergistic effect occurs between polyamide amine and alkanolamine rheology modifiers, and yield values are higher in the situations of high temperature and high pressure or low shear rate. The rheology modifiers containing amide, amine and akloxy together are mainly used to realize excellent suspension properties and remain weak progressive gelling behaviors of mineral oil based drilling fluids by modifying their gelling structures.
Key words: mineral oil based drlling fluid, rheology modifier, low-shear rate rheology, linear viscoelasticity, weighting material settling
中国油基钻井液技术发展缓慢，与国外有较大的井壁失稳、超高温深井以及大斜度井的井眼净化与润差距。目前，在低渗、深层、海洋和非常规油气资源滑等地质、工程难题。目前，在塔里木山前构造和川勘探开发过程中，更多地依赖国外油基钻井液技术，渝地区页岩气钻探中，主要依靠斯伦贝谢和哈里伯顿以应对钻井过程中遇到的复杂地层（页岩储层等）的的油基钻井液。
基金项目：中国博士后科学基金第六批特别资助项目“酰胺型流型调节剂对矿物油基钻井液低剪切流变性的影响”（CPSF.）（19010
第一作者简介：张现斌（1981-)，男，山东聊城人，博士，2011年毕业于中国石油大学（华东），高级工程师，现主要从事钻井液与完井液技术研究。地址：天津市大港油田红旗路东段彻海钻探泥浆技术服务公司，邮政编码：300280。E-mail；zhangxbin@cnpc.com.cn
收稿日期：2014-1009，修改日期：2015-0608 万方数据