The inhere integrate water content of the Daqing old oilfield as la, sa, xing has been to 86.5 percent, some regions have been over to 90 percent, The exploring period of heavy water content has come.

• 大庆喇、萨、杏老油田的原有综合含水已经达到86.；5%25，有些区块含水已经超过90%25以上，进入特高含水开采期。