高温蒸汽吞吐油井用复合树脂防砂剂的制备及性能研究

Preparation and Performance of Composite Resin Sand-control Agent Used in High-temperature Steam Stimulation Wells

朱 杰 黄齐茂 潘志权 程清蓉 周 红 刘玉兰

ZHU Jie HUANG Qimao PAN Zhiquan CHENG Qingrong ZHOU Hong LIU Yulan

为获得适合高温蒸汽吞吐热采井使用的防砂剂， 将 F-51型酚醛环氧树脂和 E-39D型双酚 A环氧树脂 （质量比 1∶3） 复配， 再与固化剂 4-甲基咪唑、 硅烷偶联剂和环氧活性增韧剂反应制得复合树脂防砂剂。通过测量固结岩心的抗压强度优化了复合树脂防砂剂固化的配方， 研究了固结岩心的耐温、 耐酸碱和渗透性。结果表明， 复合树脂防砂剂固化的最佳配方 （以石英砂质量为基准计） 为： 10%复合树脂、 1.0% 4-甲基咪唑、 0.25%偶联剂、 2.5%活性增韧剂。按此配方在 60℃下固化 2 d得到的固结岩心的抗压强度约为 13 MPa； 固结岩心耐温性较好， 在 260℃下放置 7 d后的抗压强度为 11.99 MPa； 固结岩心在 5%酸碱溶液、 饱和 NaCl溶液和柴油中浸泡 7 d后的抗压强度均大于 3.5 MPa， 满足正常注汽及采油强度要求； 固结岩心渗透性较好， 渗透率为 70.21 μm2， 满足高温蒸汽吞吐热采井稠油开采的要求。图7表5参13

In order to obtain the sand-control agent used in high-temperature steam stimulation well，compound resin of phenolic epoxy resin F-51 and pouring bisphenol A epoxy resin E-39D in mass ratio 1∶3 reacted with curing agent（4-methyl imidazole）， silane coupling agent and epoxy active toughening agent to produce composite resin sand-control agent. The solidified formula of composite resin sand-control agent was optimized by measuring the compressive strength of consolidated core，and the temperature resistance，acid and alkali resistance，and permeability of consolidated core were studied. The results showed that the optimum formula of composite resin sand-control agent was obtained as follows: 10% composite resin，1.0% 4-methyl imidazole，0.25% coupling agent and 2.5% toughening agent based on the mass of quartz. The compressive strength of consolidated core according to the optimum formula curing 2 days at 60℃ was about 13 MPa. The compressive strength of consolidated core placing 7 days at 260℃ was 11.99 MPa，showing good high-temperature resistance. The compressive strength of consolidated core was more than 3.5 MPa，when the core was soaked in 5% acid or alkali solution，saturated NaCl solution and diesel for 7 days，which satisfied the strength requirement of normal steam stimulation and oil production. Moreover，the permeability of consolidated core was good with 70.21 μm2， which met the requirement of heavy oil exploitation in high-temperature steam stimulation well.

10.19346/j.cnki.1000-4092.2016.04.017