影响长垣油田固井质量的地质因素分析

All Affect the Cementing Quality of Oil Field Geological Factors Analysis

为分析影响长垣油田固井质量的地质因素,根据长垣油田储层特征,选取第六、第一、第三厂具代表性的岩心样品106块,通过室内试验,测定样品的孔隙度、渗透率及岩石密度。通过各项物性参数与固井综合优质率及非优井段分别进行回归拟合分析,得出其最大相关系数,以此区分影响固井质量的主要因素和次要因素。研究结果表明:对固井质量影响较大的地质因素是孔隙压力和气油比。气油比与非优井段比例相关系数达到0.76;压力系数与综合优质率呈反相关,相关系数0.665。通过开展油田高含水后期油层物性变化对固井质量影响关系及配套技术的研究,定量分析油田高含水后期储层物性变化对固井质量影响,为研究适应油田开发需要的调整井固井工艺技术提供依据,对保证油田高含水后期开发效果具有重要意义。

For all oil field analysis on the cementing quality of geological factors,according to the changyuan oilfield reservoir characteristics,the selection sixth,first,third factory representative the core sample 106 piece,through the laboratory test,measure samples of porosity,permeability and rock density.Through the various physical parameters and cementing comprehensive ratio and the optimal interval regression analysis respectively,and the biggest correlation coefficient is obtained,to distinguish between the cementing quality of the main influence factors and secondary factors.The results show that the cementing quality of geological factors influencing is pore pressure and oil than.Oil and gas than the optimal interval ratio are relations to 0.76,the pressure coefficient and the comprehensive in inverse relationship finally,correlation coefficient of 0.665.Through the development of oilfield of high water cut period petrophysical property change on cementing quality influence and supporting technology research,quantitative analysis of high water cut period oil reservoir physical properties change on cementing quality effects for research to adapt to the need of oilfield development cementing process technology provides the basis,to ensure that oil field development effect of high water cut period is of great significance.