CAJ | 학술논문

丘陵油田经多年注水开发,目前已进入中高期含水阶段。受注入水影响,储层形成多压力系统。由于低矿化度注入水的影响,水淹层的扩散吸附电位发生不同程度变异;因加密调整井泥浆密度较高,过滤电位对自然电位的影响不能忽略。过滤电位和变异的扩散吸附电位叠加造成自然电位异常,会影响储层解释结果的正确性。统计所有自然电位异常层的试油情况,分析试油结果与测井响应特征关系,提出判别自然电位异常储层含油性的方法。
구릉유전경다년주수개발,목전이진입중고기함수계단。수주입수영향,저층형성다압력계통。유우저광화도주입수적영향,수엄층적확산흡부전위발생불동정도변이;인가밀조정정니장밀도교고,과려전위대자연전위적영향불능홀략。과려전위화변이적확산흡부전위첩가조성자연전위이상,회영향저층해석결과적정학성。통계소유자연전위이상층적시유정황,분석시유결과여측정향응특정관계,제출판별자연전위이상저층함유성적방법。
Qiuling oilfield has entered the period of high water stage,After many years development under water flooding,Affected by the injection water,reservoir formation of multi-pressure system.Due to the low impact of injected water salinity,water flooded the diffusion layer adsorption potential mutation in different degrees;mud density adjustment wells due to the higher encryption,filtering potential impact on the natural potential can not be ignored.Variation of the diffusion filter adsorption potential and superimposed potential anomalies caused by the natural potential,the results will affect the accuracy of reservoir interpretation.Statistics abnormal layer of all natural potential oil testing,analyze test results and log characteristics of the oil between the reservoir proposed exception distinguish the nature of the natural potential method.