Drilog随钻测井系统在渤海油田的应用

Application of Drilog LWD System in BoHai Oilfield

岳明亮

YUE Mingliang

中海油能源发展股份有限公司工程技术分公司, 天津 300452

Engineering Technology Branch of CNOOC Energy Developments Ltd, Tianjin 300452, China

随钻测井是在钻开地层的同时实时测量地层信息的一种测井技术，它具有测量准确、时效高、风险低等优点，目前广泛应用于直井、定向井、大斜度井及水平井中。2014年，中海油服自主研发的随钻测井系统Drilog挂接旋转导向系统Wellleader在渤海成功应用，打破了国际垄断局面。为了证实Drilog测量系统的稳定性、一致性、适用性，此文通过其在渤海油田应用实例，从质量分析、侵入分析和地质导向等方面进行分析，得出结论并提出建议。

LWD is a logging technology to measure formation information while drilling.It has the following several advantages,such as accurate measurement,high efficiency and low risk.This technology has been used in various kinds of well-type,including vertical well,directional well,highly deviated well and horizontal well.In 2014,COSL researched and developed its own LWD system named Drilog independently.It broke the international monopoly after the application in BoHai oilfield successfully combined with rotary steerable drilling system named Wellleader.In this article,to confirm the stability,consistency and applicability of Drilog system,analysis has been conducted on quality,invasion and geosteering etc.with the application examples in BoHai oilfield.Finally,we got some conclusions and proposed some suggestions.

https://doi.org/10.3969/j.issn.1008-2336.2017.02.051