X射线荧光录井技术在克深区块盐底界面的卡层应用

The Application of X-Ray Fluorescence Logging in Defining Salt Boundary in Keshen Block

摘要: 塔里木油田库车坳陷古近系库姆格列木群发育着巨厚的膏盐岩层，准确的卡取盐底界面，下入技术套管,封隔该段具有高压力系数的地层，是安全钻开油气层的关键。利用X射线荧光录井技术确定元素标志层，利于地层对比区分盐底泥岩与盐间泥岩，解决了盐底界面卡取困难的问题，确保钻探目的的实现。

Abstract: In Palaeogene Kumugeliemu Group in Kuqa Depression of Tarim Oilfield, there developed a gyp-sum salt rock formation. The key for safe drilling of oil and gas layer there was to identify salt bottom accurately and seal this section with high pressure coefficient. The X-ray fluorescence logging technique is used to identify the element marker layer and is beneficial for stratigraphic correlation, and distinguishing the mudstone at the bottom of the salt layer and between the salt. The method solves the problem for identification of salt on the bottom, ensues the realization of target zone drilling.