摘要
低孔低渗储层岩性致密、渗流阻力大,常规射孔压实带的存在进一步造成渗透率降低,射孔孔眼的随机性分布使压裂过程中出现启动压力高、脱砂、砂堵等现象,影响了试油评价工作。采用多脉冲复合射孔技术、定方位射孔技术可消除常规射孔的影响;综合减震技术、延时起爆技术及射孔效果检测技术,改进和完善了射孔测试联作技术,提高了测试成功率,保证了测试效果,为试油工作提供了保障。
Lithology of reservoir of low porosity and low permeability is dense and percolation resistance is big.The existence of compaction zone caused by conventional perforation makes the permeability to be low and the random distribution of perforated hole causes the phenomena of high start-up pressure,off the sand,sand blocking,etc in fracturing process which affects the test oil and its evaluation work.by using techs of the Multi-pulse interpreted perforation and oriented perforation eliminates the influence of conventional.And integrated shock absorption technology,the delay effect of detonating perforating technology and detection technology,improve and complete the combined tech of perforation and test,improve the test success rate,and ensure the test results,which provides a guarantee for the oil test job.
出处
《油气井测试》
2011年第4期63-65,78,共3页
Well Testing
关键词
射孔
多脉冲
定方位
减震装置
延时起爆
TCP监测仪
perforation,multi-pulse,orientation, shock absorber,delay initiation,TCP monitor
