成像测井技术在长庆低渗透油气藏勘探中的应用

The Application of Image Logging in Changqing Low Permeability Oil and Gas Reservoir

从低渗透储层测井精细解释方法、低电阻率油气层成因机理与识别、声电成像测井解释模式、裂缝识别与评价等四个方面初步讨论了成像测井技术在长庆油气勘探中的应用情况及效果。认为,以声电成像和核磁共振为代表的测井新技术在提高低渗、低阻和裂缝性储层测井评价的精度方面可以发挥重要作用;适度提升测井数据采集的技术档次,是经济有效地解决长庆低渗透、非均质复杂油气储层定量评价难题的重要措施之一。

This paper discussed the application and effect of image logging in Changqing oilfield from four aspects: subtly interpretation method of logging data for low permeability reservoir, the identification of low resistivity reservoir and its mechanism, the interpretation pattern of sonic and micro-resistivity image log and its application, the fissure identification and engineering application. The authors consider that the image well logging technology can markedly improve the reservoir evaluation precision of low permeability, low resistivity and fissure reservoir; moderately spread the image logging technology is an economic and efficient method to solve the problem of quantitatively evaluating the low permeability and heterogeneous reservoir in Changqing oilfield.