The brine content of crude oils produced in Zhyangxi oil Field, Shengli, has increased up to 60-70% and the scale inhibitor used in oil-gathering stations, HEDP, has lost its most functions.
桩西油田产出原油综合含水已达60% - 70%，原用防垢剂HEDP已失去有效抑制集输站结垢的性能。
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Sometimes crude oil or natural gas will also be found in the brine formations, having invaded the brine millions of years ago.