高石梯—磨溪地区龙王庙组碳酸盐岩储层测井评价方法研究

发布时间：2018-12-27 19:42

【摘要】：高石梯-磨溪地区龙王庙组气藏是目前四川地区的重点勘探开发的新领域。该区储层为多重孔隙介质储层,具有很强的非均质性,造成了缝洞识别、储层类型划分、储层参数定量计算、流体性质识别及有效性控制因素分析等测井评价技术面临了许多问题和难点。本文在储层特征分析的基础上,运用常规测井资料结合岩心分析、成像测井、阵列声波测井资料,从储层识别、储层参数建模、储层流体性质判别、储层有效性控制因素分析四方面进行测井评价。研究得出：①三孔隙度模型法应用效果较好,可有效的识别缝洞；依据测井曲线特征值可有效识别储层；储层可划分为溶蚀孔洞型、裂缝-孔洞型及裂缝-孔隙型三类,且各类储层分布具有规律性。②以岩心物性分析资料标定测井曲线,分储层类型建立了孔隙度解释模型,且模型具有较好的相关性；利用常规测井资料结合核磁测井资料计算了储层渗透率,提高了渗透率的解释精度；运用阿尔奇公式求取含水饱和度(实验法确定m、n值)。③分构造运用了6种流体性质判别方法,其中双侧向测井具有普适性。④在储层物性下限的确定基础上,本文对不同类型有效储层的电性特征进行了评价,分析了岩性、孔喉结构、渗透性、沉积相、构造位置等因素与储层有效性的关系,明确了有效储层的特征,为油田的开发生产提供了重要的理论依据。本论文的完成,为高石梯-磨溪地区龙王庙组气藏提供了一套系统的测井评价技术,为下一步的储层综合评价、试油层段的优选和储量计算提供了更为准确的测井依据。
[Abstract]:Longwangmiao formation gas reservoir in Gaoshi-Moxi area is a new area of exploration and development in Sichuan. The reservoir in this area is a multi-porosity medium reservoir, which has strong heterogeneity, resulting in fracture and cavity recognition, reservoir type classification, quantitative calculation of reservoir parameters, Well logging evaluation techniques such as fluid property identification and effectiveness control factor analysis are facing many problems and difficulties. Based on the analysis of reservoir characteristics, this paper uses conventional logging data combined with core analysis, imaging logging, array acoustic logging data, from reservoir identification, reservoir parameter modeling, reservoir fluid properties discrimination. Well logging evaluation is carried out in four aspects of reservoir effectiveness control factor analysis. The results are as follows: (1) the three-porosity model method can be used to identify fractures and cavities effectively, and the reservoir can be effectively identified according to the characteristic values of logging curves. The reservoir can be divided into three types: solution pore type, fracture-pore type and fracture-pore type, and the distribution of all kinds of reservoirs is regular. (2) the log curve is calibrated with the core physical property analysis data, and the porosity interpretation model is established according to the reservoir type. The model has good correlation. The permeability of reservoir is calculated by using conventional logging data and nuclear magnetic logging data, and the interpretation accuracy of permeability is improved. Using Archie formula to calculate the saturation of water (the experimental method is used to determine the value of mong n). The 3 minute structure uses six methods to distinguish the fluid properties, of which the dual lateral logging is universal. 4 on the basis of the determination of the lower limit of reservoir physical properties, In this paper, the electrical characteristics of different effective reservoirs are evaluated, and the relationship between lithology, pore throat structure, permeability, sedimentary facies, structural location and reservoir effectiveness is analyzed. It provides an important theoretical basis for the development and production of oil fields. The completion of this paper provides a set of systematic logging evaluation technology for the Longwangmiao formation gas reservoir in Gaoshitian-Moxi area, and provides a more accurate logging basis for the next comprehensive reservoir evaluation, optimal selection and reserve calculation of the reservoir test section.
【学位授予单位】：西南石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13;P631.81

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