爆聚法合成抗高温抗盐水基降滤失剂及性能评价

王茂功; 颜星; 彭洁

doi:10.3969/j.issn.1001-5620.2019.02.003

爆聚法合成抗高温抗盐水基降滤失剂及性能评价

doi: 10.3969/j.issn.1001-5620.2019.02.003

1. 中国石油集团工程技术研究院有限公司, 北京 102206;
2. 中国石油大学(北京), 北京 102200

基金项目:

国家重大专项课题“深井超深井优质钻井液与固井完井技术研究项目”（2016ZX05020-004）资助

详细信息

作者简介:
王茂功,高级工程师,博士,1977年生,主要从事处理剂研发和钻井液技术研究。E-mail:wangmg_dri@cnpc.com.cn

中图分类号: TE254.4
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出版历程
- 收稿日期: 2018-11-03
- 刊出日期: 2019-04-30

High Temperature Salt Resistant Filter Loss Reducers for Water Base Drilling Fluids: Synthesis with Explosive Polymerization Method and Performance Evaluation

1. Research institute of Drilling Engineering Technology, CNPC, Beijing 102206;
2. China University of Petroleum-Beijing, Beijing 102249

摘要

摘要: 为了克服水相聚合法产物含量低、烘干过程分子量易增大和高能耗等问题，通过爆聚法利用单体苯乙烯磺酸钠和2-丙烯酰胺-2-甲基丙磺酸分别与丙烯酰胺和二甲基二烯丙基氯化铵合成制备了抗高温抗盐降滤失剂WS-1和WS-2。借助红外光谱（FT-IR）和热重分析（TGA），表征了降滤失剂的分子结构和热稳定性，并且进行了降滤失剂在高温高盐水基钻井液中的流变性和高温高压滤失性能的影响实验。结果表明，具有刚性苯乙烯磺酸钠分子链段的降滤失剂WS-2具有良好的高温稳定性，热分解温度为310℃，降滤失剂WS-2在220℃饱和盐水基钻井液中高温高压滤失量为7.6 mL；具有大分子支链2-丙烯酰胺-2-甲基丙磺酸链段的降滤失剂WS-1热分解温度为270℃，200℃饱和盐水基钻井液中高温高压滤失量为1.6 mL；利用爆聚法合成的降滤失剂WS-1和WS-2均具有良好的抗温抗盐性能。
- 钻井液 /
- 降滤失剂 /
- 饱和盐水 /
- 水基 /
- 高温 /
- 抗盐 /
- 高温高压 /
- 滤失量
Abstract: Sodium styrene sulfonate and AMPS were used to react with acrylamide and dimethyl diallyl ammonium chloride respectively in explosive polymerization to produce two high temperature salt resistant filter loss reducers WS-1 and WS-2. Explosive polymerization was used in the synthesis reaction because in aqueous phase polymerization, the yield of the product is low, the molecular weight of the product is easy to increase during drying, and the energy required for the reaction is high. The molecular structure and thermal; stability of WS-1 and WS-2 were characterized using FT-IR spectroscopy and TGA. The effects of WS-1 and WS-2 on the rheology and HTHP filtration rate of high salinity water base drilling fluids at elevated temperatures were evaluated in laboratory experiment. The experimental results showed that WS-2, having rigid sodium styrene sulfonate molecular chains in its molecules, had good high temperature stability, the thermal decomposition temperature of WS-2 was tested to be 310℃. HTHP filter loss at 220℃ of a saturated saltwater base drilling fluid treated with WS-2 was 7.6 mL. WS-1, having large molecular chain of AMPS in its molecules, had thermal decomposition temperature of 270℃. HTHP filter loss at 200℃ of a saturated saltwater base drilling fluid treated with WS-1 was 1.6 mL. These experimental results showed that WS-1 and WS-2 both have good high temperature and salt resistant performance.
- Drilling fluid /
- Filter loss reducer /
- Saturated saltwater /
- Water base /
- High temperature /
- Salt resistant /
- High temperature high pressure /
- Filtration rate

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参考文献(8)

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