中子伽马测-渗-测工艺确定剩余油饱和度

比较了在测-渗-测工艺中,中子伽马与中子寿命测井在确定产层剩余油饱和度和水淹层的异同点以及解释结果方面的一致性。结果表明,中子伽马测井能够代替中子寿命测井,并显示出仪器结构简单、稳定性好、造价和测井费用低、易于推广应用等优点。

注钆中子伽马测井技术在油田开发中的应用

在低矿化度地区,通过将俘获截面较高的钆溶液替换井筒内液体,利用"测—渗—测"中子伽马测井施工工艺,在不扰乱地层剩余油分布状态的前提下,改变地层水矿化度能达到评价剩余油纵向分布及水淹层位监测的目的。通过介绍注钆中子伽马测井技术,阐述了示踪剂钆在中子伽马饱和度测井中的作用,利用该方法处理的资料取得了良好的应用效果。

硼中子寿命测井在西部某油田的应用

西部某油田主要为低孔、低渗、低矿化度油藏,层间、层内压力、流体性质极不均衡。采用测—注—测技术,难以确定注硼压力。因此,在生产中常常采用测—渗—测技术。在使用这项技术时,要把握硼酸用量、硼酸浓度和测量时间这3个最关键的施工参数,以便寻找潜力层、识别水淹层、判别串槽、定量计算水淹级别。

Geotechnical behavior of the MSW in Tianziling landfill

The valley shaped Tianziling landfill of Hangzhou in China built in 1991 to dispose of municipal solid waste (MSW) was designed for a service life of 13 years. The problem of waste landfill slope stability and expansion must be considered from the geotechnical engineering point of view, for which purpose, it is necessary to understand the geotechnical properties of the MSW in the landfill, some of whose physical properties were measured by common geotechnical tests, such as those on unit weight, water content, organic matter content, specific gravity, coefficient of permeability, compressibility, etc. The mechanical properties were studied by direct shear test, triaxial compression test, and static and dynamic penetration tests. Some strength parameters for engineering analysis were obtained.