雁木西油田出砂倾向研究

雁木西油田在开发早期油藏评价阶段的测试和试采过程中，发现部分地层有出砂现象，在注水开发过程中出砂特征更加明显。本文针对雁木西油田出砂机理分析，提出该储层在衰竭式开采过程的正常生产情况下出砂轻微，采用注水开发时，若出现水侵现象，即随着地层含水率的上升，会出现严重出砂，此时要及时采取有效的防砂措施，以免地层骨架破裂造成后期防砂难度加大。

Research of Sanding Tendency in Yanmuxi Oilfield

In the proeeas of testing and measurement of reservoir evaluation in the early period of development on Yanmuxi Oilfield, the sand production was found in part of formation. Sanding features were much obviotts in the process of exploitation by water injoction. As for sanding mechanism analysis on Yanmuxi Oilfield, the sand production is minor in the normal production of depletion exploitation on the pay zone. When the exploitation by water injection is used ff the water contamination phenomenon oeeurs, sanding gets serious with water rate in the formation rising. At this moment the effective sand control measure should he taken promptly to avoid the formation skeleton rupture causing sand control difficult in the late period.