钻井液与完井液2023，Vol.40Issue(6)：703-710,8.DOI:10.12358/j.issn.1001-5620.2023.06.002
抗高温抗复合盐支链型聚合物降滤失剂的合成及其性能
Synthesis and Evaluation of a High Temperature Salt-Resistant Chain Polymer Filter Loss Reducer
邢林庄 1袁玥辉 2叶成 1屈沅治 2孙晓瑞 1高世峰 2任晗2
作者信息
- 1. 中国石油新疆油田公司工程技术处,新疆克拉玛依 834000
- 2. 中国石油集团工程技术研究院有限公司,北京 102206
- 折叠
摘要
Abstract
A branched polymer filter loss reducer PAANDA has been developed to deal with the problems of poor high-temperature stability and poor salt resistance encountered in deep well drilling.Monomers used for the synthesis include acrylamide(AM),2-acrylamide-2-methyl propane sulfonic acid(AMPS),N-vinyl caprolactam(NVCL),dimethyl diallyl ammonium chloride(DMDAAC)and allyl alcohol polyoxyethylene ether(APEG).Potassium persulphate and sodium bisulphite was used as a redox system for the radical polymerization reaction.Laboratory experiment was conducted to determine the optimum ratio of the raw reaction materials and optimum reaction conditions ad follows:n(AM)∶n(AMPS)∶n(NVCL)∶n(DMDAAC)∶n(APEG)= 50:20:5:10:15,reaction temperature = 50℃ ,reaction time = 4 hours,concentration of the initiator = 0.3%.Using FTIR and 1H-NMR,the molecular structure of the polymerization product was determined.TGA analysis showed that the PAANDA filter loss reducer degrades at above 300℃ ,indicating that the product has excellent thermal stability.The filtration control property of PAANDA was evaluated in water-based drilling fluids.It was found that at a water-based drilling fluid treated with 2.0%PAANDA has API filter loss of 4.0 mL and HTHP filter loss of 22.6 mL tested at 180 ℃ after aging the fluid at 180 ℃ .The PAANDA also performed better than Driscal D in resisting contamination from compound salts and calcium.关键词
支链型聚合物/降滤失剂/水基钻井液/抗高温/抗复合盐Key words
Chain polymer/Fluid loss reducer/Water-based drilling fluid/High temperature resistant/Compound salt resistance分类
能源科技引用本文复制引用
邢林庄,袁玥辉,叶成,屈沅治,孙晓瑞,高世峰,任晗..抗高温抗复合盐支链型聚合物降滤失剂的合成及其性能[J].钻井液与完井液,2023,40(6):703-710,8.
