原油密度、黏度的地化热解评价方法

地化热解资料不同组分所影响因素不同，这些影响因素外在表现和机理不同，从影响机理入手，在对各组分进行样重、孔隙与体积校正的基础上，分别建立原油密度约束的轻、中及重质组分校正模型。对不同来源的地化热解资料进行校正后，在考虑残余烃含量的同时，提取与原油密度、黏度相关性较大的评价参数，建立原油密度、黏度相关性较大的评价参数，建立原油密度、黏度的多参数相关性定量化评价模型。并形成了一套较为完善的资料校正与原油密度、黏度评价方法，对不同储集层、层位、原油性质的37口井共48层的原油密度、黏度进行评价，评价结果与原油样品分析结果对比可知，其精度有了明显提高。

Evaluating oil density and viscosity with geochemical pyrolysis data

Different influence factors have different extra appearance and mechanism in different components of geochemical pyrolysis degradation. In this paper, updating models of light,middle and heavy constituent constrained by oil density were built up on the bases of pretreatment to sample weight, porosity and volume. Correlatively quantitative polyparameter evaluation models of oil density and viscosity were built up after correcting geochemical pyrolysis degradation data, getting residual hydrocarbon content and better parameters correlativity to oil density and viscosity. A set of perfect evaluation methods of correcting data, getting oil density and viscosity were formed. Using these methods, a higher precision of oil density and viscosity in 48 layers of 37 wells in different reservoirs has been obtained.