摘要
针对高温蒸汽吞吐井由于出砂导致地层不稳定的问题,研究了以糠醇预聚体(KAR)、乙酸乙酯(AC 2)和硅树脂(M15)为主要成分的高温覆砂,并考察了单剂加量、剂砂比、固化温度和固化时间对高温覆膜砂固结强度和渗透性能的影响。试验表明:随着剂砂比的增大、固化时间的延长、砂粒粒径的增大、渗透率的升高,固砂体抗压强度降低。通过研究筛选出了胶结剂组成:80．0％KAR+8．0％AC-2+8．0％M15+0．8％KH-550+3．2％苯甲磺酰氯(SC-2),在试验条件下固砂体抗压强度大于9 MPa,渗透率大于0．2μm2,且目砂体的耐介质性较好。
The high temperature coated sand, composed mainly of KAR, AC-2 and M15, were investigated for the unstable formation caused by the sand production in steam Huff-Puff wells. The influence of mass ratio of sand-consolldation agent to sand, sand particle size, curing time and curing temperature on compressed strength and permeability of high temperature coated sand were studied. The lab tests indicate curing time, diameter of particle and permeability are increasing and compression pressure of resin-coated sand is deceasing with increasing the ratio of agent to sand. After analysis and comparison, the resin-coated agent with 80% KAR, 8.0% AC-2, 8.0% M15, 0. 8% KH-550 and 3.2% SC-2 was selected, and the resin-coated sand has the compression pressure higher than 9 MPa, permeability higher than 0. 2 μm^2 and good compatibilities in lab tests.
出处
《石油钻探技术》
CAS
北大核心
2007年第1期76-78,共3页
Petroleum Drilling Techniques
基金
湖北省教育厅科学研究项目"无机固砂技术研究"(编号:2001A51005)部分研究成果
关键词
防砂
固砂
抗压强度
蒸汽吞吐
实验室试验
sand control
sand consolidation
compressive strength
steam soaking
laboratory testing
