鹿角
发布时间：2019-03-19 14:50
【摘要】：研究区处于志留系生油凹陷,嘉陵江组烃源主要来自于志留系,烃源充足；地面出露侏罗系沙溪庙组地层,上覆盖层完整,保存条件好。同时研究区内嘉陵江组纵向上发育多套储集层,物性较好,钻井中井喷、井漏等油气显示普遍。研究区嘉陵江组天然气控制储量大,而探明程度低,可探潜力大。 本文综合利用录井、钻井、测井、地震和多种实验测试资料,对研究区的地层划分和对比、沉积相特征、储层特征等进行系统研究。鹿角场-李子坝地区嘉陵江时期为碳酸盐台地,发育开阔台地相和局限台地相。研究区嘉陵江组在其沉积演化过程中经历了三次海平面升降变化,三次海进的范围和海平面相对高度,有逐渐减小和降低的趋势。虽然研究区嘉陵江组沉积相的垂向分异具有明显的旋回叠置特征,但是平面分布特征,却没有如此简明的规律性,几套储盖层在平面上的沉积相变化和分异比较频繁。 基于嘉陵江组地层发育的基本特征,以层序地层学理论为指导,选取三条剖面进行了地层对比。对比发现,研究区发育几套稳定的标志层,地层界限比较明显,易于对比。研究区嘉陵江组的储集岩主要包括：颗粒灰岩、颗粒云岩以及粉一微晶云岩3大岩石类型。 研究区嘉陵江组为特低孔、低渗储层,82.39%的样品孔隙度小于2%,孔隙度大于6%的只占到3.3%左右,仅约6%的样品实测渗透率大于0.1×10-3mD,在裂缝的作用下,可在局部形成较高孔隙度、高渗透率的层段,判定本研究区嘉陵江组的储层为低孔低渗型的储层。研究区储集层的储集空间类型较多样化,综合对比分析,储集空间以次生孔隙或孔洞为主,另外发育有溶洞和裂缝储集空间,综合判断,嘉陵江组储层类型主要为裂缝—孔隙型。 研究区嘉陵江组储层分为4类,嘉二1-嘉一上储层最为发育,其次为嘉二2。根据鹿角场-李子坝地区嘉陵江组单井测井解释成果,在研究区内储层段筛选了3条剖面,进行了连井储层对比评价,总结了储层的分布特征,并对本区嘉陵江组地层开展有利开发目标评价研究。
[Abstract]:The research area is in the oil-bearing depression of the Silurian system, and the hydrocarbon source in the Jialing River is mainly from the Silurian system and the source of the hydrocarbon is sufficient; the formation of the Jurassic Shaximiao Formation of the Jurassic in the ground is complete and the storage condition is good. At the same time, there are multiple reservoirs in the longitudinal direction of Jialing River in the study area, with good physical property, well blowout and well leakage in the well. The gas control reserves of the Jialingjiang Formation in the research area are large, and the exploration potential is low and the exploration potential is large. This paper comprehensively uses mud logging, drilling, logging, earthquake and various experimental data to study the formation and contrast, sedimentary facies and reservoir characteristics of the research area. The period of Jialing River in the antlers-plums area is the carbonate platform, the open platform facies and the limited platform are developed. In the process of its sedimentary evolution, the Jialingjiang Formation of the research area has undergone three changes of sea level rise and fall, the range of the three transgression and the relative height of sea level, and the trend of gradually decreasing and decreasing the sea level Although the vertical differentiation of the sedimentary facies of the Jialingjiang Formation in the research area has obvious cyclic stacking characteristics, the distribution of the plane is not so simple, and the sedimentary facies change and the differential frequency of the cover layers in the plane are different. Based on the basic characteristics of the formation development of the Jialingjiang Formation, three sections are selected by the sequence stratigraphy theory as the guide. The comparison of the two layers shows that the study area has several stable marker layers, and the formation boundary is obvious and easy to use. The primary rock of the Jialingjiang Formation in the study area is mainly composed of the granular limestone, the granulites and the 3 large rocks of the fine-grained migmatite. The porosity of the sample is less than 2%, the porosity is more than 6%, only about 3.3%, and only about 6% of the sample has a measured permeability of more than 0.1% to 10-3 mD, and can be formed locally under the action of the crack. The reservoir of the Jialingjiang Formation in the study area is low in porosity and low in the layer segment with higher porosity and high permeability. The types of reservoir space in the reservoir of the study area are diversified, the comprehensive comparison and analysis, the reservoir space is the main pore or the hole, and the karst cave and the fracture reservoir are developed, and the reservoir type of the Jialingjiang Formation is mainly divided. The reservoir of Jialingjiang Formation in the study area is divided into 4 types, Jiayuan 1-Jiacheng reservoir is the most developed. 2. According to the results of well logging interpretation of Jialingjiang Formation in the area of the antlers-plums, three sections were selected in the reservoir section in the study area, and the reservoir comparative evaluation was carried out, and the distribution characteristics of the reservoir were summarized, and the formation of the Jialingjiang Formation in this area was carried out.
【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
[Abstract]:The research area is in the oil-bearing depression of the Silurian system, and the hydrocarbon source in the Jialing River is mainly from the Silurian system and the source of the hydrocarbon is sufficient; the formation of the Jurassic Shaximiao Formation of the Jurassic in the ground is complete and the storage condition is good. At the same time, there are multiple reservoirs in the longitudinal direction of Jialing River in the study area, with good physical property, well blowout and well leakage in the well. The gas control reserves of the Jialingjiang Formation in the research area are large, and the exploration potential is low and the exploration potential is large. This paper comprehensively uses mud logging, drilling, logging, earthquake and various experimental data to study the formation and contrast, sedimentary facies and reservoir characteristics of the research area. The period of Jialing River in the antlers-plums area is the carbonate platform, the open platform facies and the limited platform are developed. In the process of its sedimentary evolution, the Jialingjiang Formation of the research area has undergone three changes of sea level rise and fall, the range of the three transgression and the relative height of sea level, and the trend of gradually decreasing and decreasing the sea level Although the vertical differentiation of the sedimentary facies of the Jialingjiang Formation in the research area has obvious cyclic stacking characteristics, the distribution of the plane is not so simple, and the sedimentary facies change and the differential frequency of the cover layers in the plane are different. Based on the basic characteristics of the formation development of the Jialingjiang Formation, three sections are selected by the sequence stratigraphy theory as the guide. The comparison of the two layers shows that the study area has several stable marker layers, and the formation boundary is obvious and easy to use. The primary rock of the Jialingjiang Formation in the study area is mainly composed of the granular limestone, the granulites and the 3 large rocks of the fine-grained migmatite. The porosity of the sample is less than 2%, the porosity is more than 6%, only about 3.3%, and only about 6% of the sample has a measured permeability of more than 0.1% to 10-3 mD, and can be formed locally under the action of the crack. The reservoir of the Jialingjiang Formation in the study area is low in porosity and low in the layer segment with higher porosity and high permeability. The types of reservoir space in the reservoir of the study area are diversified, the comprehensive comparison and analysis, the reservoir space is the main pore or the hole, and the karst cave and the fracture reservoir are developed, and the reservoir type of the Jialingjiang Formation is mainly divided. The reservoir of Jialingjiang Formation in the study area is divided into 4 types, Jiayuan 1-Jiacheng reservoir is the most developed. 2. According to the results of well logging interpretation of Jialingjiang Formation in the area of the antlers-plums, three sections were selected in the reservoir section in the study area, and the reservoir comparative evaluation was carried out, and the distribution characteristics of the reservoir were summarized, and the formation of the Jialingjiang Formation in this area was carried out.
【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
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