射孔器腔内压力测试仪设计仿真研究

Design and simulation research on tester of perforator cavity pressure

射孔器枪外环空压力不能直观反映射孔过程,为满足油气井射孔工艺优化以及射孔弹威力评估对腔内压力参数的需求,研制了射孔器腔内压力测试仪.由于射孔器腔内的特殊环境,其对测压仪器的体积以及形态具有严格的要求.鉴于在克拉玛依油田XXX射孔基地射孔作业测试试验的总结,仪器壳体的形变直接影响到仪器内部测试电路,因此在塑性力学基础上采用"弹型"结构对测试仪器的壳体进行了进一步的设计研究.结果表明,"弹型"厚壁壳体结构具有良好的吸能作用,解决了壳体抗震性差的问题.

The outer pressure of perforation could not directly reflect the perforation process. Tobetter optimize the process of wells perforated and assess the power of perforator, we developed aperforating gun cavity tester. Due to the special circumstances of the perforating gun cavity, thesize and shape of the pressure measurement instruments made strict requirements. In view of thesummary of the tests in the XXX perforating base of the Karamay Oilfield, the deformation of theinstrument shell that directly affect the instrument internal test circuit. The ＂bomb＂ structure ofthe test instrument shell further research on the basis of plastic mechanics. The results show that the ＂bomb-type＂ thick-walled shell structure has a good energy-absorbing role in resolving the problem of shell shock resistance.