CAJ | 학술논문

致密砂岩储层物性下限的确定是非常规储层研究中的一个难点问题。储层特征、原油密度和粘度、地层温度和地层压力等多种因素都对有效储层的物性下限有控制作用，在这种特别复杂情况下，动态资料更能真实客观地反映储层的性质，研究过程中要充分利用动态资料，动静态资料有机结合，综合利用试油法、含油产状法和排驱压力法等分别求取不同埋深下有效储层的物性下限。致密砂岩储层不同埋深下有效储层的物性下限与深度存在函数关系，总体随深度的增加而减小。特别要注意随着采油工艺的提高，有效储层的物性下限会降低，因此，地质工作者要不断地对有效储层的物性下限进行研究。
치밀사암저층물성하한적학정시비상규저층연구중적일개난점문제。저층특정、원유밀도화점도、지층온도화지층압력등다충인소도대유효저층적물성하한유공제작용，재저충특별복잡정황하，동태자료경능진실객관지반영저층적성질，연구과정중요충분이용동태자료，동정태자료유궤결합，종합이용시유법、함유산상법화배구압역법등분별구취불동매심하유효저층적물성하한。치밀사암저층불동매심하유효저층적물성하한여심도존재함수관계，총체수심도적증가이감소。특별요주의수착채유공예적제고，유효저층적물성하한회강저，인차，지질공작자요불단지대유효저층적물성하한진행연구。
The determination of tight sandstone reservoir petrophysical parameter cutoff is a difficult problem in the study of unconventional reservoirs. The cutoff of effective reservoir is controlled by many factors, such as reservoir properties, oil density, oil viscosity, formation temperature, formation pressure and so on. In this complex situations, the true properties of the reservoir can be more objectively reflected by dynamic data, which means, we should make full use of dynamic data in the process of the research and comprehensive utilizing a variety of methods, such as formation test method, oil-bearing occurrence method and displacement pressure method to study the petrophysical parameter cutoff with the reasonable combination of dynamic and static data. The petrophysical parameter cutoff of tight sandstone effective reservoir has function relation with its different depth which generally decreases with the increasing of the depth. Special attention should be paid to the improvement of production technology, which can make the petrophysical parameter cutoff reduce. Therefore, it is necessary for geological workers to analyze the petrophysical parameter cutoff of effective reservoirs constantly.