| In the process of crude oil is produced, the oil well paraffin deposit was the cause of the abnormal production an important factor. Due to their high YingDong block output of crude oil viscosity, high solidifying point, the well flushing cycle short, often appear, condensate oil, wax card card, etc. Therefore, on the basis of statistical YingDong block wax cycle, we can know wax components by gas chromatography and determine and analyze the distribution of group composition of crude oil in the area; Through the indoor experiment, we determine the block oil solidifying point; At the same time, we analyze advantages and disadvantages of the paraffin methods of the steam wash well paraffin removal, mechanical paraffin removal, chemical cleaning.On the basis of full investigation in paraffin technology, we conclude that the wax cycle method could be extended and get the solution to the well wax card, condensate oil card, etc through the indoor test.In this article, by analyzing the field YingDong four blocks, crude oil physical properties of wax crystal structure and related parameters, etc., we can summarize its impact on the degree of oil well paraffin deposit. By polymeric paraffin remover and inhibitor of evaluation and selection, we can known that in the fact of coagulation effects the beating wax agent is suitable for 101 E block oil Wells; Paraffin remover and inhibitor(reagent A: kerosene = 1:1) is suitable for the high table block oil Wells; paraffin remover and inhibitor(pharmaceutical E: isopropanol = 2:1) is suitable for Wells in 101-101 block; paraffin remover and inhibitor is suitable for 162 E block oil Wells. From the inhibition effect of paraffin, drug F is suitable for all four blocks of YingDong oil Wells. From the point of paraffin rate effect, E paraffin remover and inhibitor has the highest rate of paraffin. With carrying out a field experiment, we can see that the wax cycle is significantly extended and have achieved good results. |
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