录井技术组合在大港陆相页岩油勘探开发中的应用

Application of technical combination for mud logging in the exploration and development of continental shale oil in Dagang

当前,大港油田陆相页岩油勘探开发效果明显,但是在施工过程中,遇到了诸多在常规油气藏勘探开发中所没有遇到的问题,如烃源岩含油性识别、泥页岩脆性分析等。通过应用地化、元素、三维定量荧光、随钻地质导向等前沿录井技术,形成技术组合,用于指导现场施工,进行解释评价,在陆相页岩油的勘探开发中有效地解决了水平井地质导向、陆相页岩油甜点划分、钻井提速等一系列现实问题,发挥了录井技术的独到优势。

At present,the exploration and development effect of continental shale oil in Dagang Oilfield is obvious.However,many problems such as the oil-bearing identification of source rocks and analysis of shale brittleness occurred during the construction,which were not encountered in the exploration and development of conventional oil and gas reservoirs.Through the application of cutting-edge mud logging technologies such as geochemistry,elements,3D quantitative fluorescence and geosteering while drilling,technical combination was formed for the guidance of on-site construction,and interpretation and evaluation.It has effectively solved a series of problems such as horizontal well geosteering,favorable spot division of continental shale oil,and the increase of drilling speed in the exploration and development of continental shale oil,and played its role in mud logging technology.