标题：Determination of reasonable water injection timing for complex fault block high saturation reservoir - A case study of C30 fault block in Chaheji oilfield
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：153
期号：6
页码：062079
DOI：10.1088/1755-1315/153/6/062079
语种：English
出版社：IOP Publishing
摘要：High saturation reservoir has the characteristics of high gas-oil ratio, high saturation pressure and low difference between reservoir pressure and saturation pressure. In the process of development, the oil layer is very easy to degas due to the lag of water injection, which affects the production of oil well. Therefore, it is necessary to determine reasonable water injection timing and timely water injection to ensure the efficient development of high saturation reservoir. Based on the characteristics of complex fault block high saturation reservoir, the reasonable water injection timing of high saturation reservoir is determined by means of the combination of the finite layer quasi-steady state well test method and the material balance method. Through the actual production data verification, the calculation results of two methods are approximate, and the accuracy is high enough to meet the production need. The determination method is suitable for the reasonable injection timing of high saturation reservoir.
