扶余油田中区非城区区块油藏精细描述
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摘要
扶余油田在构造上位于松辽盆地南部中央坳陷扶新隆起带扶余3号构造,是一个断裂非常复杂、堑垒相间的多高点穹隆背斜。油田地质特点为:断层多(2004年解释700多条),断裂系统复杂,断层以NS走向和NE-WS走向为主,局部发育有EW向断层;油藏埋深浅(一般250~500m,平均430m),油层多分布在构造高点处,扶余油层较发育,局部发育杨大城子油层,油藏是构造控制为主的整装中孔、中高渗透率层状砂岩油藏。油层多而薄(泉四段分4个砂岩组,13个小层,平均有效厚度约10.3米),物性差异大,平均孔隙度24.1%,渗透率180×10-3um2。储集层岩性以细砂岩和粉砂岩为主,横向上岩性变化大,且多为正韵律地层,油层层间、层内非均质性严重,水驱效果较差。油藏主要受沉积-构造控制,虽然含油面积大、地质储量大,但由于油田地质条件复杂,油水分布规律性差,且在开发过程中受裂缝和储层低渗透性的影响,给开发带来很大难度。
本研究充分利用油田现有资料,以沉积岩石学、储层地质学和石油地质学等理论为指导,以服务油田精细勘探开发为宗旨,以地层精细划分与对比为基础,紧紧围绕沉积体系与储层展布等工作主线,通过微构造、沉积微相与沉积体系、储层非均质性、储集体建模等研究,明确剩余油分布的主控因素,提供下一步开发调整的优化目标区。为油田挖潜及研究区下一步调整方案的制定提供较可靠的地质支撑数据。
Construction on the Fuyu oil field in southern Songliao basin is located in the central depression help uplift Buyeo new structure on the 3rd, is a very complex fracture, cutting the high-point barrier and white dome anticline. Field geological features are: multi-fault (2004 to explain more than 700), and complex fault system, fault to NS and NE-WS to go mainly to local development have EW fault; reservoir buried depth (usually 250 ~ 500m, an average of 430m), the distribution of oil more than a high point in the structure, than Fuyu reservoir development, local development Yangdachengzi reservoir, reservoir-based control is fully constructed in the hole, in the layered high-permeability sandstone reservoirs.
Multi-layers and thin (Stephen 4 sandstone four sub-groups, 13 layer, the average effective thickness of about 10.3 meters), large differences in physical properties, with an average 24.1% porosity and permeability 180×10-3um2. Lithological reservoir in order to fine-grained sandstone and siltstone mainly on the lateral lithologic changes, and more positive rhythm formation, oil layers, the layer of the heterogeneity of serious effects of poor water flooding. Mainly affected by reservoir sedimentation - structural control, although the oil-bearing area, geological reserves, but due to complicated geological conditions of oil fields, oil-water distribution regularity of difference, and in the process of developing the reservoir by the cracks and the effects of low permeability, to bring about the development of very difficult.
In this study, full use of the existing field data to sedimentary petrology, reservoir geology and petroleum geology, such as the theory as a guide, to serve the oil field exploration and development for the purpose of fine to fine stratigraphic division and correlation-based, closely surrounding the depositional system reservoir distribution and the main line and so on, through the micro-structures, sedimentary microfacies and depositional systems, reservoir heterogeneity, reservoir modeling studies, a clear control of remaining oil distribution factors, adjusted to provide the next step to optimize the development of the target area. Potential for the oil field study area and the formulation of the next adjustment programs to provide more reliable data on the geological support.
本研究充分利用油田现有资料,以沉积岩石学、储层地质学和石油地质学等理论为指导,以服务油田精细勘探开发为宗旨,以地层精细划分与对比为基础,紧紧围绕沉积体系与储层展布等工作主线,通过微构造、沉积微相与沉积体系、储层非均质性、储集体建模等研究,明确剩余油分布的主控因素,提供下一步开发调整的优化目标区。为油田挖潜及研究区下一步调整方案的制定提供较可靠的地质支撑数据。
Construction on the Fuyu oil field in southern Songliao basin is located in the central depression help uplift Buyeo new structure on the 3rd, is a very complex fracture, cutting the high-point barrier and white dome anticline. Field geological features are: multi-fault (2004 to explain more than 700), and complex fault system, fault to NS and NE-WS to go mainly to local development have EW fault; reservoir buried depth (usually 250 ~ 500m, an average of 430m), the distribution of oil more than a high point in the structure, than Fuyu reservoir development, local development Yangdachengzi reservoir, reservoir-based control is fully constructed in the hole, in the layered high-permeability sandstone reservoirs.
Multi-layers and thin (Stephen 4 sandstone four sub-groups, 13 layer, the average effective thickness of about 10.3 meters), large differences in physical properties, with an average 24.1% porosity and permeability 180×10-3um2. Lithological reservoir in order to fine-grained sandstone and siltstone mainly on the lateral lithologic changes, and more positive rhythm formation, oil layers, the layer of the heterogeneity of serious effects of poor water flooding. Mainly affected by reservoir sedimentation - structural control, although the oil-bearing area, geological reserves, but due to complicated geological conditions of oil fields, oil-water distribution regularity of difference, and in the process of developing the reservoir by the cracks and the effects of low permeability, to bring about the development of very difficult.
In this study, full use of the existing field data to sedimentary petrology, reservoir geology and petroleum geology, such as the theory as a guide, to serve the oil field exploration and development for the purpose of fine to fine stratigraphic division and correlation-based, closely surrounding the depositional system reservoir distribution and the main line and so on, through the micro-structures, sedimentary microfacies and depositional systems, reservoir heterogeneity, reservoir modeling studies, a clear control of remaining oil distribution factors, adjusted to provide the next step to optimize the development of the target area. Potential for the oil field study area and the formulation of the next adjustment programs to provide more reliable data on the geological support.
引文
[1]郭建国,杨学文,李新华等.用不稳定试井曲线研究注水开发油藏的地质模型[J].新疆石油地质,2001,22(3):253-257.
[2]王秀娟.大庆外围低渗透油藏精细地质描述技术.第三届油气储层研讨会论文摘要集,2004,350-368.
[3]裘亦楠.储层地质模型.中国油气储层研究论文集.北京:石油工业出版社, 1993. 1-7.
[4]林克湘,张昌民等.地面-地下对比建立储层精细地质模型.北京:石油工业出版社, 1995.
[5]冯国庆,陈军,李允等.利用相控参数场方法模拟储层参数场分布.石油学报, 2002, 23(4): 61-64.
[6]王志章,石占中等.现代油藏描述技术.北京:石油工业出版社, 1999: 220-275.
[7]任宝生,芦凤明,马立军.羊三木油田精细油藏描述研究与实践.第三届油气储层研讨会论文摘要集, 2004.
[8]云美厚,丁伟,王新红,杨凯.油藏水驱时移地震监测岩石物理基础研究.中国地球物理学会第二十届年会论文集, 2004.
[9]江淮友,翟春凤,肖兰花,李晓英,李丽萍.大庆油田储层渗流特征研究与应用.低渗透油气储层研讨会论文摘要集, 2002.
[10]张世明,戴涛,冻燕虎,胡慧芳.高非均质油藏高104-5区块剩余油分布数值模拟研究.中国力学学会学术大会2005论文摘要集(下), 2005.
[11]曲广利,杨正明,郝明强.低渗透油田活性水驱油油藏数值模拟研究中国力学学会学术大会2005论文摘要集(下), 2005.
[12]姚军,李勇,彭晖.天然裂缝性油藏数值模拟研究,渤海湾油气勘探开发程技术论文集(第十集), 2005.
[13]李允,陈军,张烈辉.一个新的低渗气藏开发数值模拟模型.天然气工业. 2004. 24(8): 65-68.
[14]余进,李允.水驱气藏气水两相渗流及及其应用研究的进展.西南石油大学学报. 2003.
[15]张烈辉,李允.裂缝性油藏水平井数值模拟的进展和展望.西南石油大学学报, 1997.
[16]张烈辉,李允.混合网格在水平油藏数值模拟中的应用.西南了油大学学报, 1996.
[17]云美厚,丁伟,王新红,杨凯.油藏水驱时移地震监测岩石物理基础研究.中国地球物理学会第二十年会论文集[J],2004.
[18]江淮友,翟春凤,肖兰花,李晓英,李丽萍.大庆油田储层渗流特征研究与应用.低渗透油油气储层研讨会论文摘要集, [J],2002.
[19] Ozkan E.and Ohaeri V.Unsteady flow to a well produced at a constant pressure in a fracture reservoir[J].SPE 9902:1987.
[20] R.G.Camacho-V and R.Padilla-S.New results on decline curves considering non-Darcy flow effects[J]. SPE 2466:1970.
[2]王秀娟.大庆外围低渗透油藏精细地质描述技术.第三届油气储层研讨会论文摘要集,2004,350-368.
[3]裘亦楠.储层地质模型.中国油气储层研究论文集.北京:石油工业出版社, 1993. 1-7.
[4]林克湘,张昌民等.地面-地下对比建立储层精细地质模型.北京:石油工业出版社, 1995.
[5]冯国庆,陈军,李允等.利用相控参数场方法模拟储层参数场分布.石油学报, 2002, 23(4): 61-64.
[6]王志章,石占中等.现代油藏描述技术.北京:石油工业出版社, 1999: 220-275.
[7]任宝生,芦凤明,马立军.羊三木油田精细油藏描述研究与实践.第三届油气储层研讨会论文摘要集, 2004.
[8]云美厚,丁伟,王新红,杨凯.油藏水驱时移地震监测岩石物理基础研究.中国地球物理学会第二十届年会论文集, 2004.
[9]江淮友,翟春凤,肖兰花,李晓英,李丽萍.大庆油田储层渗流特征研究与应用.低渗透油气储层研讨会论文摘要集, 2002.
[10]张世明,戴涛,冻燕虎,胡慧芳.高非均质油藏高104-5区块剩余油分布数值模拟研究.中国力学学会学术大会2005论文摘要集(下), 2005.
[11]曲广利,杨正明,郝明强.低渗透油田活性水驱油油藏数值模拟研究中国力学学会学术大会2005论文摘要集(下), 2005.
[12]姚军,李勇,彭晖.天然裂缝性油藏数值模拟研究,渤海湾油气勘探开发程技术论文集(第十集), 2005.
[13]李允,陈军,张烈辉.一个新的低渗气藏开发数值模拟模型.天然气工业. 2004. 24(8): 65-68.
[14]余进,李允.水驱气藏气水两相渗流及及其应用研究的进展.西南石油大学学报. 2003.
[15]张烈辉,李允.裂缝性油藏水平井数值模拟的进展和展望.西南石油大学学报, 1997.
[16]张烈辉,李允.混合网格在水平油藏数值模拟中的应用.西南了油大学学报, 1996.
[17]云美厚,丁伟,王新红,杨凯.油藏水驱时移地震监测岩石物理基础研究.中国地球物理学会第二十年会论文集[J],2004.
[18]江淮友,翟春凤,肖兰花,李晓英,李丽萍.大庆油田储层渗流特征研究与应用.低渗透油油气储层研讨会论文摘要集, [J],2002.
[19] Ozkan E.and Ohaeri V.Unsteady flow to a well produced at a constant pressure in a fracture reservoir[J].SPE 9902:1987.
[20] R.G.Camacho-V and R.Padilla-S.New results on decline curves considering non-Darcy flow effects[J]. SPE 2466:1970.