小型断块油藏识别和描述
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摘要
勘探开发实践表明,断块油田开发中后期仍存在许多小型断块原始油藏,这些小型断块油藏隐蔽性强、常规手段难以识别。通过断裂构造的物理模拟和构造应力场分析,认为胜利油区断块油田的形成与6种断裂带有关,大中型断层的应力集中、转向和释放处发育小型断层,小型断层与大中型油源断层交汇处的圈闭成藏条件好。在分析和预测了不同断裂带小型断块油藏分布规律的基础上,利用高精度三维地震等技术,成功地在胜利油区识别和描述了150多个小型断块油藏。由于断块油田开发中后期地面设施齐全,尽管小型断块油藏储量规模较小,但开发效益好,是我国东部断陷盆地原油增储上产的重要目标。
The practice of petroleum exploration and development shows that there are still great oil reserves undiscovered in different small faulted-block reservoirs in the late-period development of faulted-block oilfield.The small faulted-block reservoirs are secret in the subtle oil-pools and difficult to be found out.The investigation of physical stimulation and stress-field analysis on different types of fault zones showed that the faulted-block oilfields occurred in six types of fault zones in the rift basin of the eastern China.The small faults formed faulted-block traps at the conjunction of two or three big faults,turning points and stress immerging area of a big fault.The faulted-block traps have good condition for generating reservoirs at the connections of the small and big faults.Having predicted the possible distributions of the small faulted-block reservoirs,150 faulted-block reservoirs in the developed faulted-block area of Shengli Oilfield were identified and described by applying the integrated high-precision seismic survey technique.Although oil reserves are small in the small faulted-block reservoirs,a great benefit can be received because of the good equipments for the late-period development in the studied areas.The small faulted-block reservoirs are the important targets for increasing oil reserves and production of the faulted-block oilfields in the rift basins of East China.
The practice of petroleum exploration and development shows that there are still great oil reserves undiscovered in different small faulted-block reservoirs in the late-period development of faulted-block oilfield.The small faulted-block reservoirs are secret in the subtle oil-pools and difficult to be found out.The investigation of physical stimulation and stress-field analysis on different types of fault zones showed that the faulted-block oilfields occurred in six types of fault zones in the rift basin of the eastern China.The small faults formed faulted-block traps at the conjunction of two or three big faults,turning points and stress immerging area of a big fault.The faulted-block traps have good condition for generating reservoirs at the connections of the small and big faults.Having predicted the possible distributions of the small faulted-block reservoirs,150 faulted-block reservoirs in the developed faulted-block area of Shengli Oilfield were identified and described by applying the integrated high-precision seismic survey technique.Although oil reserves are small in the small faulted-block reservoirs,a great benefit can be received because of the good equipments for the late-period development in the studied areas.The small faulted-block reservoirs are the important targets for increasing oil reserves and production of the faulted-block oilfields in the rift basins of East China.
引文
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[13]刘文.地震资料全三维解释在油藏描述中的应用[J].成都理工大学学报:自然科学版,2004,31(4):386-389.Liu Wen.Application of true3D interpretation of seismic data toreservoir description[J].Journal of Chengdu University of Tech-nology:Science&Technology Edition,2004,31(4):386-389.
[14]曾祥平,杨海中,王宏,等.低序级断层识别技术在复杂断块油藏注采调整中的运用[J].石油勘探与开发,2006,33(5):614-618.Zeng Xiangping,Yang Haizhong,Wang Hong,et al.Applicationof farewell fault detection technology to the polymer adjustmentin complex fault block reservoirs[J].Petroleum Exploration andDevelopment,2006,33(5):614-618.
[15]陈书平,漆家福,王德仁,等.东濮凹陷断裂系统及变换构造[J].石油学报,2007,28(1):43-49.Chen Shuping,Qi Jiafu,Wang Deren,et al.Fault system andtransfer structures in Dongpu Sag[J].Acta Petrolei Sinica,2007,28(1):43-49.
[2]褚庆忠,张树林.渤海湾盆地垦利断裂带构造与油气关系研究[J].地球学报,2004,25(1):71-78.Chu Qingzhong,Zhang Shulin.Structural characteristics relatedto hydrocarbon migration and accumulation in the Kenli FaultZone,Bohai Gulf[J].Acta Geoscientica Sinica,2004,25(1):71-78.
[3]蒋有录,刘华,张乐,等.东营凹陷含油气系统的划分及评价[J].石油学报,2005,26(5):33-37.Jiang Youlu,Liu Hua,Zhang Le,et al.Characteristics of petrole-um system in Dongying Depression[J].Acta Petrolei Sinica,2005,26(5):33-37.
[4]王明发,王勤田,郭腾明,等.盘河断块区构造及微构造特征[J].断块油气田,2003,10(1):25-28.Wang Mingfa,Wang Qintian,Guo Tengming,et al.Characteris-tics of structural and micro-structural in Panhe faulted-Blocks[J].Fault-Block Oil&Gas Field,2003,10(1):25-28.
[5]王端平,柳强.复杂断块油田精细油藏描述[J].石油学报,2000,21(6):111-116.Wang Duanping,Liu Qiang.Fine researvoir description of com-plex fault-block oilfield[J].Acta Petrolei Sinica,2000,21(6):111-116.
[6]王光付,许坚,王端平,等.中国石化不同类型断块油藏水驱采收率分析[J].石油勘探与开发,2004,31(4):96-98.Wang Guangfu,Xu Jian,Wang Duanping,et al.The water dis-placement recovery in different kinds of fault block sandstonereservoirs,Sinopec[J].Petroleum Exploration and Development,2004,31(4):96-98.
[7]赵贤正,郑良合,李廷辉,等.渤海湾滩海地区构造和沉积特征及有利勘探区带[J].石油地球物理勘探,2004,39(3):348-355.Zhao Xianzheng,Zheng Lianghe,Li Tinghui,et al.Structural anddepositional feature of beach area in Bohai Bay and favorable ex-ploration zones[J].Oil Geophysical Prospecting,2004,39(3):348-355.
[8]云金表,赵利华.东营凹陷中央隆起带构造特征、沙箱模拟与形成机制研究[J].地质力学学报,2003,9(2):113-121.Yun Jinbiao,Zhao Lihua.Research on molding,sturctural featureand formation mechanism of the central uplift belt Dongying De-pression,Jiyang[J].Journal of Geomechanics,2003,9(2):113-121.
[9]熊翥.隐蔽油气藏勘探———地震数据处理与解释[J].勘探地球物理进展,2004,27(6):391-396.Xiong Zhu.Aspects of subtle reservoir exploration:Seismic dataprocessing and interpretation[J].Progress in Exploration Geo-physics,2004,27(6):391-396.
[10]刘光鼎,张丽莉,祝靓谊.试论复杂地质体的油气地震勘探[J].地球物理学进展,2006,21(3):683-686.Liu Guangding,Zhang Lili,Zhu Liangyi.Seismic prospecting foroil and gas on the complex geological bodies[J].Progress in Geo-physics,2006,21(3):683-686.
[11]熊翥.我国物探技术的进步及展望[J].石油地球物理勘探,2004,39(6):745-750.Xiong Zhu.Progress and prospect of geophysical prospectingtechniques in China[J].Oil Geophysical Prospecting,2004,39(6):745-750.
[12]赵翰卿,付志国,吕晓光.储层层次分析和模式预测描述法[J].大庆石油地质与开发,2004,23(5):74-79.Zhao Hanqing,Fu Zhiguo,LüXiaoguang.Reservoir type analysisand model prediction description method[J].Petroleum Geology&Oilfield Development in Daqing,2004,23(5):74-79.
[13]刘文.地震资料全三维解释在油藏描述中的应用[J].成都理工大学学报:自然科学版,2004,31(4):386-389.Liu Wen.Application of true3D interpretation of seismic data toreservoir description[J].Journal of Chengdu University of Tech-nology:Science&Technology Edition,2004,31(4):386-389.
[14]曾祥平,杨海中,王宏,等.低序级断层识别技术在复杂断块油藏注采调整中的运用[J].石油勘探与开发,2006,33(5):614-618.Zeng Xiangping,Yang Haizhong,Wang Hong,et al.Applicationof farewell fault detection technology to the polymer adjustmentin complex fault block reservoirs[J].Petroleum Exploration andDevelopment,2006,33(5):614-618.
[15]陈书平,漆家福,王德仁,等.东濮凹陷断裂系统及变换构造[J].石油学报,2007,28(1):43-49.Chen Shuping,Qi Jiafu,Wang Deren,et al.Fault system andtransfer structures in Dongpu Sag[J].Acta Petrolei Sinica,2007,28(1):43-49.
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