摘要
在进行MDT电缆地层压力测试时,油/气层较薄等原因很容易造成所测的合格压力数据点太少,无法对这些数据点进行地层压力梯度拟合,从而无法确定油/气/水界面。通过对MDT电缆地层压力测试原理分析研究,提出了利用MDT单压力数据点确定油/气/水界面的方法,在给定地层流体密度的前提下,如果能够在油/气层和水层分别测得一个合格的压力数据点,即可预测出油/气/水界面深度。油气田应用证明,该方法很好地克服了合格压力数据点太少的问题,在一定程度上加快了油气藏勘探开发进程。
Due to thin oil/gas layer, qualified tested pressure data is so little that we can＇t use these data to equate the formation pressure gradient by MDT （formation pressure test）, so, it is not easy to determine the oil/gas/water interface. Based on the theory analysis of MDT formation pressure test, proposed is a method using MDT single pressure data to determine the water/oil/ gas interface. If fluid density is given and qualified pressure data is tested and obtained from oil/ gas layer and water layer, the depth of oil/gas/water interface can be forecasted. The log applications show that the method can eliminate the limitation of accurate pressure data, and improve the proceeding of exploitation and development.
出处
《测井技术》
CAS
CSCD
北大核心
2011年第2期180-182,共3页
Well Logging Technology
