印尼XX区块高阻水层成因分析

Analysis of the Origin of High Resistivity Water Layer in XX Block of Indonesia

以印尼XX区块为主要研究对象,针对该区块中L组含水层段在测井解释过程出现解释结果与试油资料不一致的矛盾,开展了对该区块高阻水层成因的探究,充分利用现有资料,排除高阻岩性沉积,泥浆滤液高侵等因素的影响,根据SP曲线中含水层段出现的明显正异常,结合地层水分析资料,最终得出地层水矿化度低是形成高阻水层的主要原因。对XX区块高阻水层的分析,有利于我们对该区做出正确的测井解释,并指导油水层的正确划分,为后期储量评估与勘探开发奠定基础。

In this paper, study has been conducted the origin of high resistivity aquifers of L formation in XX block of Indonesia because the logging data interpretation results are inconsistent with the testing results. With available data, by excluding the other influence factors, such as high resistivity sedimentary rocks, high mud filtrate invasion, it has been concluded that the low salinity of the formation water is the main reason for high resistivity water layer through analysis of positive anomaly at aquifer section in SP curve, combined with analyzing results of formation water data. The analyzing results of the origins of high resistivity water layers in XX block is very helpful in logging interpretation on this block and division of the oil and water layers, which lays a solid foundation on reserves evaluation, exploration and development of this block.