求翻译：NB35-2油田油藏存在非均质性较严重，原油黏度高，含水上升速度快，油水流度比高，出砂严重，冷采以及水驱开发效果差等问题。是什么意思？

nb35-2 oilfield reservoir heterogeneity is more serious, high oil viscosity, water rising fast, the oil-water mobility than high, the sand is serious, cold production, as well as poor water flooding effect.

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NB35-2 oil field oil deposit existence anisotropism is serious, the crude oil viscosity is high, the watery ascending velocity is quick, the perquisite fluidity scaled height of burst, leaves the granulated substance to be serious, Leng Cai as well as water drive development effect inferior question

More serious heterogeneity of reservoirs in NB35-2 oilfield, high oil viscosity, water rose faster oil flow-ratio, serious sand, sand-carrying cold production, as well as poor water flood development effect problems.

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