塔河油田4区奥陶系缝洞型油藏特征及开发对策
|
摘要
塔河油田4区储集体主要分布在奥陶系风化壳,呈不规则网状。储集空间以溶洞、裂缝为主,溶洞高度大多数低于2 m,裂缝平均宽度大于0.1 mm的层段占总层段的58%。储集体的平面分布与古岩溶发育有关,古岩溶水道的地震反射特征呈串珠状强反射,深浅侧向测井异常具有幅度差。利用蒙特卡罗法计算缝洞型油藏储量,一种方法是利用测井解释的结果,统计孔隙度、有效厚度、含油饱和度的概率分布;另一种方法是假设孔隙度、有效厚度、含油饱和度为精确值,储集体面积符合某种概率分布,求得每口井的储量分布。塔河油田是块状底水油藏,油藏的水体主要由深部发育的古岩溶水道系统沟通底水。合理开发碳酸盐岩缝洞型油藏应以缝洞单元为基础,以循环注水、钻侧钻井为主要措施,宜采用“一井一策”方针。
Reservoirs in block 4 of Tahe oilfield are mainly distributed in Ordovician weathered crust and appear as irregular chicken-wire pattern.Solution cavities and fractures are the main types of reservoir space.The height of most solution caviteis is less than 2m,and the formation intervals with average fracture width of over(0.1 mm) account for 58% of the total.Areal distribution of reservoirs is related with the development of fossil karst.Fossil karst channels appear as beaded strong seismic reflection,and magnitude differences exist between deep and shallow laterolog anomalies.Monte Carlo method is used to calculate reserves of fractured-vuggy reservoirs.One way is to achieve the probability distribution of porosity,net thickness and oil saturation based on interpretation of log data.Another one is to achieve reserves distribution of each well through assuming that the values of porosity,net thickness and oil saturation are accurate and the area of reservoir body accords with certain probability distribution.Tahe oilfield is a massive oil pool with bottom water,being communicated with deep fossil karst water channel system.Rational development of fractured-vuggy carbonate reservoirs should take fracture-vug units as bases,cyclic waterflooding and lateral drilling as the principal measures,and "one well one scheme" as the guiding principle.
Reservoirs in block 4 of Tahe oilfield are mainly distributed in Ordovician weathered crust and appear as irregular chicken-wire pattern.Solution cavities and fractures are the main types of reservoir space.The height of most solution caviteis is less than 2m,and the formation intervals with average fracture width of over(0.1 mm) account for 58% of the total.Areal distribution of reservoirs is related with the development of fossil karst.Fossil karst channels appear as beaded strong seismic reflection,and magnitude differences exist between deep and shallow laterolog anomalies.Monte Carlo method is used to calculate reserves of fractured-vuggy reservoirs.One way is to achieve the probability distribution of porosity,net thickness and oil saturation based on interpretation of log data.Another one is to achieve reserves distribution of each well through assuming that the values of porosity,net thickness and oil saturation are accurate and the area of reservoir body accords with certain probability distribution.Tahe oilfield is a massive oil pool with bottom water,being communicated with deep fossil karst water channel system.Rational development of fractured-vuggy carbonate reservoirs should take fracture-vug units as bases,cyclic waterflooding and lateral drilling as the principal measures,and "one well one scheme" as the guiding principle.
引文
1张希明.新疆塔河油田下奥陶统碳酸盐岩缝洞型油气藏特征[J].石油勘探与开发,2001,28(5):17~22Zhang X im ing.The characteristics ofLowerO rdovician fissure vugcarbonate oil and gas pools in Tahe oil field,X in jiang[J].Petro-leum Exploration&D evelopm ent,2001,28(5):17-22
2杨明德.喀斯特流域水文地貌系统[M].北京:地质出版社,1998.47~200YangM ingde.Hydrogeomorphological system in karst drainage a-rea[M].Beijing:Geological Pub lish ing House,1998.47-200
3黄孝特.碳酸盐岩裂缝-溶洞型油气藏开发技术探讨[J].石油实验地质,2002,24(5):446~451Huang X iaote.An approach on the developm ent technologies offissure karst cave type hydrocarbon pools in carbonate rock[J].Petroleum Geology&Experim ent,2002,24(5):446-451
4肖玉茹,何峰煜,孙义梅.古洞穴型碳酸盐岩储层特征研究———以塔河油田奥陶系古洞穴为例[J].石油与天然气地质,2003,24(1):75~82X iao Yuru,He Fengyu,Sun Y im ei.Reservoir characteristics ofpaleocave carbonates:a case study ofO rdovician paleocave in Taheoilfield,Tarim basin[J].O il&Gas Geology,2003,24(1):75-82
5周兴熙.初论碳酸盐岩网络状油气藏———以塔里木盆地轮南奥陶系潜山油气藏为例[J].石油勘探与开发,2000,27(3):5~12Zhou X ingxi.A primary d iscussion on the network-like oil and gaspools in carbonate rocks:tak ing the Lunnan O rdovician baried-h illpool in Tarim basin as an example[J].Petroleum Exploration&D evelopm ent,2000,27(3):5-8
6周兴熙.再论网络状油气藏与轮南潜山勘探对策[J].石油勘探与开发,2002,29(4):4~9Zhou X ingxi.My second d iscussion on network-like oil and gaspools and the exploration strategy for Lunnan buried-h ill pools[J].Petroleum Exploration&D evelopm ent,2002,29(4):4-9
7阎相宾.塔河油田奥陶系碳酸盐岩储层特征[J].石油与天然气地质,2002,23(3):262~266Yan X iangb in.Characteristics ofO rdovician carbonate rock reser-voir in Tahe oilfield[J].O il&Gas Geology,2002,23(3):262-266
8张希明,杨坚,杨秋来,等.塔河缝洞型碳酸盐岩油藏描述及储量评估技术[J].石油学报,2004,25(1):13~19Zhang X im ing,Yang Jian,Yang Q iu lai,et.al.Reservoir des-cription and reserves estimation techn ique for fracture cave typecarbonate reservoir in Tahe O ilfield[J].Acta Petrolei S in ica,2004,25(1):13-19
9柳建华.FM I成像测井技术在塔河碳酸盐岩油田的应用[J].新疆石油地质,2001,22(6):487~490L iu Jianhua.The effectiveness for applying FM I well logging incarbonate reservoir ofTahe oilfield[J].X in jiang Petroleum Geolo-gy,2001,22(6):487-490
10景建恩,梅忠武,李舟波.塔河油田碳酸盐岩缝洞型储层的测井识别与评价方法研究[J].地球物理学进展,2003,18(2):336~342Jing Jian′en,M ei Zhongwu,L i Zhoubo.Investigation on well log-ging m ethods for identifying and evaluating fracture-vug type car-bonate reservoirs in Tahe oil field[J].Progress in Geophysics,2003,18(2):336-342
11李翎,魏斌,贺铎华.塔河油田奥陶系碳酸盐岩储层的测井解释[J].石油与天然气地质,2002,23(1):49~55L i L ing,W ei B in,He Duohua.Log interpretation of O rdoviciancarbonate reservoirs in Tahe oilfield[J].O il&Gas Geology,2002,23(1):49-55
12李昌全.赤水地区碳酸盐缝、洞型气藏地质模型讨论[J].贵州地质,2000,17(2):71~79L i Changquan.A d iscussion on the geological model of carbonateseam-cavern type gas pool in Ch ishu i region[J].Gu izhou Geolo-gy,2000,17(2):71-79
13任玉林,李江龙,黄孝特.塔河油田碳酸盐岩油藏开发技术政策研究[J].油气地质与采收率,2004,11(5):57~59Ren Yu lin,L i Jianglong,Huang X iaote.Study on developm entaltechnologic strategies in Tahe carbonate oilfleld[J].PetroleumGeology and Recovery E fficiency,2004,11(5):57-59
2杨明德.喀斯特流域水文地貌系统[M].北京:地质出版社,1998.47~200YangM ingde.Hydrogeomorphological system in karst drainage a-rea[M].Beijing:Geological Pub lish ing House,1998.47-200
3黄孝特.碳酸盐岩裂缝-溶洞型油气藏开发技术探讨[J].石油实验地质,2002,24(5):446~451Huang X iaote.An approach on the developm ent technologies offissure karst cave type hydrocarbon pools in carbonate rock[J].Petroleum Geology&Experim ent,2002,24(5):446-451
4肖玉茹,何峰煜,孙义梅.古洞穴型碳酸盐岩储层特征研究———以塔河油田奥陶系古洞穴为例[J].石油与天然气地质,2003,24(1):75~82X iao Yuru,He Fengyu,Sun Y im ei.Reservoir characteristics ofpaleocave carbonates:a case study ofO rdovician paleocave in Taheoilfield,Tarim basin[J].O il&Gas Geology,2003,24(1):75-82
5周兴熙.初论碳酸盐岩网络状油气藏———以塔里木盆地轮南奥陶系潜山油气藏为例[J].石油勘探与开发,2000,27(3):5~12Zhou X ingxi.A primary d iscussion on the network-like oil and gaspools in carbonate rocks:tak ing the Lunnan O rdovician baried-h illpool in Tarim basin as an example[J].Petroleum Exploration&D evelopm ent,2000,27(3):5-8
6周兴熙.再论网络状油气藏与轮南潜山勘探对策[J].石油勘探与开发,2002,29(4):4~9Zhou X ingxi.My second d iscussion on network-like oil and gaspools and the exploration strategy for Lunnan buried-h ill pools[J].Petroleum Exploration&D evelopm ent,2002,29(4):4-9
7阎相宾.塔河油田奥陶系碳酸盐岩储层特征[J].石油与天然气地质,2002,23(3):262~266Yan X iangb in.Characteristics ofO rdovician carbonate rock reser-voir in Tahe oilfield[J].O il&Gas Geology,2002,23(3):262-266
8张希明,杨坚,杨秋来,等.塔河缝洞型碳酸盐岩油藏描述及储量评估技术[J].石油学报,2004,25(1):13~19Zhang X im ing,Yang Jian,Yang Q iu lai,et.al.Reservoir des-cription and reserves estimation techn ique for fracture cave typecarbonate reservoir in Tahe O ilfield[J].Acta Petrolei S in ica,2004,25(1):13-19
9柳建华.FM I成像测井技术在塔河碳酸盐岩油田的应用[J].新疆石油地质,2001,22(6):487~490L iu Jianhua.The effectiveness for applying FM I well logging incarbonate reservoir ofTahe oilfield[J].X in jiang Petroleum Geolo-gy,2001,22(6):487-490
10景建恩,梅忠武,李舟波.塔河油田碳酸盐岩缝洞型储层的测井识别与评价方法研究[J].地球物理学进展,2003,18(2):336~342Jing Jian′en,M ei Zhongwu,L i Zhoubo.Investigation on well log-ging m ethods for identifying and evaluating fracture-vug type car-bonate reservoirs in Tahe oil field[J].Progress in Geophysics,2003,18(2):336-342
11李翎,魏斌,贺铎华.塔河油田奥陶系碳酸盐岩储层的测井解释[J].石油与天然气地质,2002,23(1):49~55L i L ing,W ei B in,He Duohua.Log interpretation of O rdoviciancarbonate reservoirs in Tahe oilfield[J].O il&Gas Geology,2002,23(1):49-55
12李昌全.赤水地区碳酸盐缝、洞型气藏地质模型讨论[J].贵州地质,2000,17(2):71~79L i Changquan.A d iscussion on the geological model of carbonateseam-cavern type gas pool in Ch ishu i region[J].Gu izhou Geolo-gy,2000,17(2):71-79
13任玉林,李江龙,黄孝特.塔河油田碳酸盐岩油藏开发技术政策研究[J].油气地质与采收率,2004,11(5):57~59Ren Yu lin,L i Jianglong,Huang X iaote.Study on developm entaltechnologic strategies in Tahe carbonate oilfleld[J].PetroleumGeology and Recovery E fficiency,2004,11(5):57-59
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心