用测井曲线组合法复查老井

Using Log Combination Method to Re-Examine Old Wells

东濮凹陷文、濮、卫结合部有一批老井需要重新认识，复查挖潜。经实践研究发现用自然伽马、中子伽马、感应曲线组合法，即测井曲线重迭和读值交会两种方法配合使用，可以消除测井曲线质量中的各种不利因素，能够快速、直观地判断油（气）水层，为中高含水期复杂小断块油田开发、重新认识油水层，提供了一个新的途径。

Some old wells which are located in the conjoin of Wenliu,Pucheng and Weicheng Oilfield,Dongpu Sag,need to be recognized again and re-examined to tap potential. Through practice,the authors find a new method to use natural gamma, neutron gamma,induction log combination to check old wells. It can eliminate various harmful factors in log quality,judge oil or gas water zone rapidly and directly,offer a new way to develop small complicated fault-block oilfields.