摘要
针对水平井出水方式及规律研究薄弱的问题,以某油田某区块的地质参数为基础建立典型模型,对线状脊进整体水淹、点状脊进整体水淹和点状脊进点状水淹几种较典型的水淹规律应用含水变化率及水油比导数进行研究。得出:(1)点状水淹规律:对于跟部单点状见水,含水变化率和水油比导数曲线相对光滑,只出现2个明显见水点;对于中部单点状见水,含水变化率和水油比导数曲线出现3个明显见水点;(2)多点见水水淹规律:对于多点见水,含水变化率水油比导数曲线所出现的峰值与见水点数成正比;(3)线状见水水淹规律:对于线状见水,含水变化率和水油比导数曲线出现明显台阶状,且台阶状的大小与高渗条带的长度成正比;(4)从见水时间来看,点状见水无水期和低含水期较多点见水和线状见水长。不同水淹模式下生产动态特征的研究为使用生产动态特征判断出水位置提供了一个新的思路。
In view of poor studying water-out pattern and laws in horizontal wells,a typical model is established on the basis of the geological data of a certain block in Jidong Oilfield.Through the study on water cut and water-oil ratio derivative curve on the typical water-out pattern,several conclusion are obtained:1.One-point water-out;for heel water out,the water cut and water oil ratio derivative curves(WWDC) are smooth with two obvious water out points;for the middle water out,there are three water out points in the WWDC.As the high permeable zone moves to the toe,the duration of water free production becomes longer.2.Multi-point water-out,the number of peaks on the WWDC grows with the increasing of the water out point.3.Linear water out,there are obvious plateaus on the WWDC.4.The water free production period of one point water-out pattern is longer than that of the two patterns.A new method is established to study the water out point by using production data.
出处
《西南石油大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第6期172-176,共5页
Journal of Southwest Petroleum University(Science & Technology Edition)
基金
国家重点基础研究发展计划(863)项目"海上油田调剖堵水预警技术研究"(2006AA09Z341)
关键词
水平井
水淹模式
水淹规律
数值模拟
生产动态
剩余油
horizontal well
water-out pattern,numerical simulation
production performance
residual oil
