以前在其天然气子公司工作的Diego gonzalez说，这家公司已经不能够维护它自己的油田了，更别提去完成它计划实现的那些新项目了。
The company can no longer maintain its own fields, let alone complete the many new projects it is pursuing, says Diego gonzalez, who used to work for its gas division.
同时最近北海油田的停工维护也使得布伦特原油这片开采已久，原本已经供应量下降的油田更加雪上加霜。
Meanwhile recent maintenance shutdowns in the North Sea have worsened already declining supplies from ageing fields of Brent crude.
目前各油田的抽油设备主要仍为常规游梁式抽油机，其主要原因是该机结构简单，操作维护方便，使用寿命长。
The conventional pumping unit is still the main pumping unit in the field at present, the main reason is that its structure is simple, operation and maintain are convenience, and its use life is long.
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