基于地化色谱技术的3H法创新研究与应用

Innovation research and application of geochemical chromatography 3H method

气测录井主要是基于烃组分相关研究方法进行储集层流体性质的综合识别,受钻井液性能、机械钻速、岩屑返速等影响,气测录井中烃类数据的检测存在诸多不确定性因素,造成井间数据标准往往不能保持一致。鉴于地化录井不受此类因素影响,以经典的轻烷烃比值法(3H法)为基础,在渤海A区块进行了地化色谱技术3H法的创新研究与应用,旨在提高现场储集层评价准确率。工程实践表明,基于地化色谱技术的3H法研究成果,能降低工程因素影响,对现场储集层评价具有一定的指导意义,可在区域后续录井作业中进行推广应用。

Gas logging is mainly based on the research methods of hydrocarbon components to identify the reservoir fluid properties.Due to the influence of drilling fluid properties,penetration rate,cuttings returning velocity,etc.,there are many uncertainties in the detection of hydrocarbon data in gas logging,resulting in the inconsistency of cross-well data standards.However,geochemical logging is not affected by such factors.Based on the classical light alkane ratio method(3H method),the geochemical chromatography 3H method is innovatively studied and applied in Bohai block A,aiming to improve the accuracy of field reservoir evaluation.The engineering practice shows that the research results of 3H method based on geochemical chromatography technology can reduce the influence of engineering factors,have certain guiding significance for field reservoir evaluation,and can be popularized in regional follow-up mud logging operation.