综合录井水平井地质导向方法探索

A probe into geosteering of compound logging of horizontal wells

LWD具有有效的地质导向作用,但是应用LWD随钻测井技术有效控制钻头在油气层内钻进时,常规LWD成本较高、存在盲区;同时,普通油井较少应用LWD。针对上述问题,本文探索出了一套低成本的应用综合录井进行水平井地质导向的方法,研究了综合录井水平井地质导向方法的原理;在辽河油田应用实践证明,对水平井实施地质导向离不开综合录井。最有效的地质导向方式为:综合录井+MWD(或LWD)。

LWD（Logging While Drilling） dose a very good work in geosteering. But conventional LWD has some shortcomings （such as high cost price and blind area） when drill bit is making hole in hydrocarbon reservoir with LWD. And LWD is merely used in ordinary oil wells. Based on the problems mentioned above, this article introduces a low cost method of horizontal wells geosteering with compound logging and has a research on the rule of this method. In view of the practice of this method in Liaohe Oil Field, compound logging is essential in horizontal wells geosteering. In short, the most efficient geosteeing is compound logging combined with MWD or LWD.