How to identify and describe low and non-effective circulation layers is one of important challenges of high efficient oilfield development in ultra-high water cut stage.

如何识别描述低效、无效循环层已经成为油田特高含水期水驱高效开发的一个重要问题。

youdao

The 2p-per-litre cut in ultra-low-sulphur petrol, in addition to the 1p cut already announced in the last budget, is aimed to accelerate its take-up by all motorists.

ECONOMIST: Fuel taxes