抗温270℃钻井液聚合物降滤失剂的研制.pdf

2017年第46卷第1期
PETROCHEMICAL TECHNOLOGY
117
DO1;10.3969/1sn.1000-8144201701.017
抗温270℃钴井液聚合物降滤失剂的研制
张丽君,王旭,胡小燕,张滨,李彬,王中华
(中国石化中原石油1程有限公可钴井工程技术研究院,河南濮刚457001
摘要1采用水溶液聚合引发体系,合成了抗高混聚合物降滤失削HR-1。考察了基团比、单体摩尔比、体系pH、总单体用
量、交联剂加量、引发剂加量等条件对HR-[性能的影响;并在淡水基浆和水基井液中列fR-1的性能进行了评价。采用
FTIR,TG,DTG等方法对HR-I进行表征。综合考最优合成条作为:基团比为6:4,单体摩尔比为10:5,pH>8,总
单体用量(w)保持在60%~67%,交联剂加量(w)囝定在7.0%~8,5%,引发剂加量(w)为0.3%-0.7%。实验结果表明
HR-1表现出良好的热稳定性和降滤失能力,抗温达270℃,在淡水基浆中HR-1加量为2.0%(w),中压滤失(FL)
由46.0mlL降至7.6mL;抗温270℃钻井液体系高温稳定性好,流变性易于控制,FL小于4.0mL,高温高压滤大量小于13.0
mL。表征结果显示,反应单体发生了接枝共聚反应,并具有较强的热稳定性。
关键词」针井液;聚合物;降滤失剂;热稳定性;滤失景
[文章编号1000-8144(2017)01-0117-07
中图分类号]TE254
文献标志码]A
Development of the polymer filtrate reducer used for
270 C ultra-high temperature drilling fluid
Zhang Lijun, Wang Xu, Hu Xiaoyan, Zhang Bin, Li Bin, Hang Zhonghua
Sinopec Zhonguan Petroleum Engineering Co. Id, Driling Enginecring Technology Institute
Puyang Henan 457001, China
L Abstract JA polymer filtrate reducer named HR-] for ultra-high temperature drilling fluid is
prepared by aqueous solution polymerization method. The effects of ratio of hydration groups to
adsorption groups, monomer molar ratio, PH, monomer concentration, dosage of crosslinking
agent, dosage of initiator on properties of HR-1 are investigated. The performance of HR-1 is
evaluated in fresh water slurry and water-base fluid system. The structures of HR-1 had been
studied by FTIR, TG, DTG. Through synthetical consideration, when ratio of groups is 6: 4
monomer molar ratio 10: 5, PH>8, the total amount(w) of monomer is 60%-67%, dosage of
crosslinking agent is 7.0%-3.5%, dosage of initiator is 0.3%--0.7%, the performance of HR-1
is perfect. The results of the experiment show that HR-1 has good loss reduction and thermal
stability, temperature resistance(up to 270 C). When the dosage of HR-1 is 2.0% in the fresh
water slurry, the API fluid loss slides from 46.0 ML to 7.6 ml270 C ultra-high temperature
drilling fluid has good thermal stability and theologic properties, the API fluid loss is 4.0
high pressure filtration is less than 13.0 ml. The result of representation shows that
the graft copolymerization of monomer really took place, and the polymer HR-1 has good
thermal stability
L Keywords drilling fluid; polymer; filtrate reducer; thermal stability; fluid los
收稿日期]2016-08-05;[修改稿日期]2016-09-20
作者简介]张丽君(1983-),女,河南省濃阳市人,硕士:工师。电话0393-4899548,啭郎botl_0371cl63.com
基金项目]中原石泊探局科技攻关项目(2013101)
万方数据