In the pilot area, application of chromatographic fingerprint technique has successfully solved the problem of production logging data shortage in each separated oil layer after changing into PC pump.

• 三元复合驱见效后,油层采液能力下降,针对试验区换螺杆泵后不能测油井分层资料的不足,应用原油气相色谱指纹技术圆满解决了这一问题。