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Laboratory evalution and application of solid paraffin inhibitor SN-2 in Chuanzhong Oilfield

Yu Xiaoling(Southwest Petroleum University,Chengdu 610500,China),Wang Pingquan,Yu Yong,et al.  
This article introduced the present situation of wax containing during the crude oil production in Chuanzhong oil-gas field as well as the solid paraffin control mechanism.Combinating with the application of solid paraffin control technology in other fields and taking into account the present paraffin control situation in Chuanzhong oil-gas field,we bring in the solid paraffin control technology.We mostly have investigated the performance evaluation of solid paraffin inhibitor(SN),including the following four aspects:the analysis of sediment,the dissolution release rate and appraisal of solid paraffin inhibitor,the evaluation test,the influence on the oil properties.The experimental result indicates that the release rate of the solid paraffin inhibitor is slow and that it can satisfy the requests in the well for a long time;The prime dosage of paraffin inhibitor is 0.015% ~ 0.02% of the liquid production rate for single well.The compatibility of paraffin inhibitor and the crude oil in Chuanzhong oil-gas field is good.So the paraffin inhibitor adapts to carry through the mine test in the Chuanzhong oil-gas field completely.
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