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曲103断块位于山东省济阳县唐庙乡境内,构造位置处在曲堤鼻状构造曲9地垒式断块区的西部。主要有沙三段、沙四上段两套含油层系,内部划分为西部的曲103-斜7块以及东部的曲103-1块。区块东部内部构造简单,西部内部构造复杂,断层发育;东西两块储层物性以及开采特征均存在较大的差异,由于采出程度及剩余油分布不同,将采用不同的井网进行开采。本文根据构造、储层特征平面上分曲103-1块及曲103-斜7块两块,纵向上分沙三、沙四上两套层系,一块一案、一类一法进行调整,对Q103-X7块沙三单元进行分块部署,局部细分;沙四单元进行边外注水,挖掘高部位剩余油;Q103-1沙三单元进行井网加密,低注高采。以完善平面注采井网为主,主力层兼顾非主力层,立足于注水开发,充分利用老井、水井进行分注,完善注采井网。
Qu 103 is located in the territory of Tangmiao Township, Jiyang County, Shandong Province, and is located at the western part of the 9-block fault zone of the Qudi Curved nose structure. There are two main oil-bearing strata in the third member of the Shahejie Formation and the upper member of the Shasi Member. The inner part is divided into a song 103-oblique 7 in the west and a song 103-1 in the east. The eastern part of the block has a simple internal structure and a complicated internal structure in the western part with fault development. There are big differences between the physical properties and the mining features of the two east and west reservoirs. Due to the different degree of recovery and the remaining oil distribution, different well patterns will be used for mining. In this paper, according to the structure, the reservoir characteristics of the plane sub-song 103-1 and song 103-oblique 7 two, longitudinal sand three, sand four upper two sets of layers, a case, a class of one method to adjust, The Q103-X7 blocks of Sand III units were deployed in blocks and partially subdivided. Sand IV units were used to inject water outside and excavated the remaining oil in the high areas. Q103-1 Sand III units were used for well network encryption with low injection and high recovery. In order to improve the plane injection well pattern, the main layer of both non-main layer, based on the water development, make full use of old wells, wells for distribution, improve the injection well pattern.