广州亚运城软土的工程特性

根据广州亚运城岩土工程勘察中大量的土工试验、原位测试和钻探资料,综合分析了亚运城场地三角洲相软土的物理力学性质和不良工程特性,并结合工程实际,提出了软土地基处理措施。     

SN胶结剂用于蒸汽吞吐油井防砂

针对稠油油藏原油粘度高，胶结疏松，出砂严重和高温蒸汽吞吐采油的特点，研究了无机盐胶结材料SN在高温化学防砂中的应用问题。本文从高温化学防砂原理入手，对胶结温度对固结体抗折强度和渗透率的影响因素进行了分析，运用正交设计实验法确定了胶结剂与石英砂比例，石膏、硅粉加量，在现场一口井的初步试验中取得了良好效果。     

Optimisation of consolidation and whey drainage during the process of Paneer pressing

Test cells of various profiles (circular, square, rectangle) were designed to conduct experiments to evaluate consolidation mechanism and drainage of whey during Paneer pressing. The milk coagulum was subjected to different pressure levels (1.0–3.5 kg/cm²) for different time periods (300, 600, 900 s). The non-dimensional whey expression ratio (WER) during pressing followed an exponential relationship with pressure, and the maximum value for WER ranged from 20.5 to 23.0 for the test cells. The visco-elastic consolidation process was adequately described using Kevin–Voigt models. The void ratio, porosity and consolidation ratio were estimated by the Terzaghi consolidation test.     

吸附膜型固砂剂的研究

本文比较了聚合物KLB及其与交联剂（GL－1＋GL－2）、酸（盐酸或氢氟酸＋盐酸）组成的固砂体系的固砂性能，KLB固砂体系是一种吸附膜固砂剂，其固砂效果优于聚合物KLB。同时考察了KLB固砂体系的各种影响因素，如固结温度、侯凝时间、盐酸浓度、氢氟酸浓度、交联剂浓度对固砂效果的影响，优选出了效果最佳的固砂剂配方。