地层预测与实钻误差横向对比分析在地质录井层位卡取中的应用

在新区块录井，一般通过地层古生物对比、构造对比、电性对比、岩性对比、油气显示对比卡取地层．但这些方法有时不能满足现场卡取层位的需要。针对此问题，基于同一区块、同一批井地层预测所使用相同的地震速度模型，引入了地层预测界线和地层厚度与地层实钻界线和地层厚度误差横向对比分析方法，即根据已钻井地层预测界线和地层厚度与实钻地层界线和地层厚度误差推算出待钻井地质设计中预测的地层界线和地层厚度的误差，从而实现对待钻井地质设计预测的地层界线和地层厚度进行校正，进而达到减小地层预测与实钻地层界线和地层厚度的误差．实现地质录井准确卡取层位。通过XH2井和TK334井两口井的应用，证明该方法能够满足新区探井卡层需要，在勘探程度高、处于开发阶段的区块。其应用效果更好。

The application of the error horizontal comparison and analysis between formation prediction and practical drilling in level clipping in geological logging

Geological logging in a new area usually clips the formation by stratigraphic paleontological correlation,structural correlation,electrical property correlation,lithology correlation,oil and gas show correlation,but sometimes these methods can't meet the needs of clipping levels at wellsite.In view of this problem,on the basis of formation prediction at same block and the same batch of wells using the same seismic velocity model,the paper introduced the analysis method of the error horizontal correlation be...