红岗地区多种录井技术综合应用研究

松辽盆地红岗地区岩屑显示级别低、气测录井异常显示值低和油层电阻率偏低,这种“三低”特征给利用传统录井手段识别与评价油气层造成了很大困难。针对这一特征,在概述造成该地区“三低”特征影响因素的基础上,分别阐述了PDC钻头钻井条件下的岩屑取样与分析手段、气测录井异常显示值低的全烃冲淡系数校正、低电阻率油层的识别以及录井新技术的综合应用。不同手段及方法的配套应用,提高了红岗地区油气层的识别与评价效果,松辽盆地红岗地区的录井作业实践表明,多种录井技术综合应用是解决录井资料质量问题、提高油气水层解释符合率的有效途径。

Composite application and study for various comprehensive mud logging techniques in Honggang area.

The low levels in cutting show, abnormal showing value of gas logging and oil zone resistivity in Honggang area of Songliao Basin have brought considerable difficulties for distinguishing and evaluating oil and gas zones by using traditional mud logging means. As for this feature, on the basis of describing the influencing factors to result in three low levels in the area, the paper stated the composite application of cutting sample catching and analyzing means, total hydrocarbon coefficient correction of gas logging abnormal showing values, low resistivity oil zone distinguishing and the application of the new mud logging techniques. The matching application of different means and methods improved the oil and gas distinguishing and evaluation effect in Honggang area, and the mud logging operation in Honggang area of Songliao basin indicated that composite application of various mud logging techniques was the effective ways for solving data quality, improving the interpretation accordance rate for oil, gas and water zones.