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本文通过对B区纯油区三次加密井开采现状进行了认真的分析,认识到自然递减大、含水上升快仍然是目前存在的主要问题,针对变化大的单井进行认真分析,认为S组薄差层及表外储层在原井网动用较好,含水级别较高,P组非主力油层和主力油层的河间砂动用较差,含水级别较低,同时也认识到通过注采系统调整改善注采不完善区块的开发状况,对三次井存在的问题提出了解决问题的思路和办法。
Based on the careful analysis of the status quo of the production of the third infill wells in the B zone pure oil zone, it is recognized that the natural decrease and the rising of the water content are still the main problems at present. According to the careful analysis of single wells with large variation, Difference and off-table reservoirs are well-utilized in the original well pattern and have high water-bearing levels. The inter-river sand in the non-main and main reservoirs of the P-group is poorly used and low in water level, and is also recognized to be improved through the injection-production system adjustment Note the development of imperfect blocks of the state, the problems existing in the three wells to solve the problem ideas and methods.