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目前存在的问题
Current Problems
储层条件略差
Reservoir conditions are slightly poor
与相邻B平台对比，油层厚度、孔隙度接近，但垂向渗透率、含油饱和度有所下降，垂向渗透率低1.0D，含油饱和度低4.1%，尤其是底部区域含油饱和度低。因垂向渗透率及含油饱和度低，导致蒸汽腔向上扩展慢，含水偏高。
Compared with B, The bitumen pay thickness and porosity were close, but the vertical permeability and oil saturation decreased. The vertical permeability was 1.5D and the oil saturation was 76.0%, especially the oil saturation in the bottom area was low. Due to the low vertical permeability and oil saturation, the steam chamber expands slowly upward and the water cuts is high.
脚尖注汽量低，井底干度低
Low toe steam volume leads to low bottom steam quality
J01井组目前平均单井脚尖日注汽量253桶，根据热损失模型计算，脚尖干度平均仅为2%（表3-2），蒸汽达到脚尖基本全部为热水，对蒸汽腔扩展作用不大，属于无效注汽量，只能增加井组含水。
At present, the average daily toe steam injection of the J01 well is 253 barrels. According to the calculation of the heat loss model, the average of the toe steam quality is only 2% (table 3-2). it is basically hot water when the steam reaches the toe, it has little effect on the expansion of the steam chamber and belongs to the useless steam volume, which can only increase the water cuts of the well pairs.
地下存水高
Un-produced Water is high(the steam which injected underground can't be produced into water)
J平台目前地下存水51.4万吨，平均单井10.3万吨，地下存水高。A、C、F平台平均单井地下存水仅2.0万吨左右，该3个平台生产指标合理，目前核实含水平均76.5%，J平台平均单井存水比A、C、F高约8.0万吨，地下存水高也是导致目前井组高含水的一个重要因素。
The J well pairs has 514000 tons of un-produced water, 103000 tons per well,the un-produced water is high. The average un-produced water of A, C and F well pairs is only about 20000 tons per well, These three Pairs have reasonable production index, The current average verified water cuts is 76.5%, The average un-produced water of a single well of J well pairs is about 80000 tons higher than that of A, C and F well pairs. The high un-produced water is also an important factor leading to the high water cuts of the current J well pairs.
水平段动用程度低
The utilization degree of producer is low
目前J平台平均水平段动用程度58%，整体偏低，导致采注比低，尤其是AJ02井组目前水平段动用程度39%，采注比只有0.6。
The average utilization degree of a single well of J well pairs is 58%, The low utilization degree leads to low TFSR. Especially the utilization degree of AJ02 is only 39%,TFSR is 0.6.
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