摘要
岩电实验作为岩石物理研究的一个重要手段,主要通过测量岩石的孔隙度、电阻率和饱和度等参数来求取阿尔奇公式中的4个关键参数,进而准确地计算地层含油气饱和度。在岩电实验过程中,由于实验设备和条件以及实验人员等因素常影响着孔隙度、电阻率和饱和度等参数的测量结果,导致难以求准m、n参数,因此很有必要制定一套合适的测井岩电实验分析标准与规范。在介绍岩电实验操作规范流程的基础上,针对实验设备、实验条件以及实验人员等诸多因素对测量结果的影响,综合分析了岩电实验过程中误差产生的原因,并提出了相应的校正方法,使实验测量值更能反映实际地层的岩石物理特征,提高了利用阿尔奇公式解释地层含油气饱和度的精度。
As an important approach to petrophysics research, core electricity experiments, mainly measuring the parameters of rock porosity, resistivity and saturation, can obtain 4 key parameters of Archie formula such as bond index m and saturation exponent n , etc. so to accurately calculate the formation oil-gas saturation. During this kind of experiment, it is difficult to accurately get parameter m and n, because the factors, including the experiment equipment, the condition and experimenters, etc. , often have an effect on the measurement result of the porosity, parameter, resistivity and water saturation. Hence, it is very necessary to establish a set of analysis standards and regulations for logging petrophysics experiments. Considering this, this paper, based on introducing the operation process of the petrophysics experiments, discusses many factors such as experiment equipment, condition and experimenters that influence measurement results, and analyses completely the reasons which cause errors during the rock electricity experiments, and points out the relevant correction methods. With this step, the measured data may reflect more petrophysics characteristics of local formation, and improve interpretation accuracy of formation oil-gas saturation by using the Archie formula.
出处
《测井技术》
CAS
CSCD
2003年第4期274-277,共4页
Well Logging Technology
基金
油气藏地质及开发工程国家重点实验室开放基金项目(PLN0133)研究成果
