塔河油田奥陶系碳酸盐岩溶洞型储集体识别及定量表征
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摘要
采用井震联合、动静结合手段,识别出塔河奥陶系碳酸盐岩溶洞型储集体21个缝洞单元,并根据缝洞单元储量规模和天然能量进行分类评价;整合井震资料,采用协同序贯指示模拟方法,建立塔河油田溶洞储集体的三维展布模型。结果表明:溶洞型储集体是塔河油田最主要的储集类型,钻录井过程中出现严重井漏、放空和钻时降至极低是识别大型溶洞的重要标志;"串珠状反射+波阻抗高异常"为溶洞型储集体的典型地震响应特征,据此可以定性预测井间溶洞展布;融合反射能量体和高精度相干体能定量预测井间溶洞展布。
In Tahe Ordovician carbonate fracture-cavity reservoirs,21 fracture-cavity units were divided by integrating well-seismic data with static and dynamic methods.According to natural energy and the reserves scale,the fracture-cavity units were classified and evaluated.A 3D through-going model of cave reservoirs in Tahe Oilfield was built by integrating well-seismic data and sequential indicator co-simulation.The results show that the cave reservoir is the main reservoir in Tahe Oilfield.During drilling and logging,serious fluid loss,drilling tools unloading and drilling time reducing to the minimum are important indicators to a large cave.The beads-shaped reflection and high abnormal impedance are the typical seismic response characteristic of cave reservoirs.Based on this,the spread of caves between wells can be predicted qualitatively.Besides,the reflection energy bodies and high-accuracy coherence cube can quantitatively predict caves distribution between wells.
In Tahe Ordovician carbonate fracture-cavity reservoirs,21 fracture-cavity units were divided by integrating well-seismic data with static and dynamic methods.According to natural energy and the reserves scale,the fracture-cavity units were classified and evaluated.A 3D through-going model of cave reservoirs in Tahe Oilfield was built by integrating well-seismic data and sequential indicator co-simulation.The results show that the cave reservoir is the main reservoir in Tahe Oilfield.During drilling and logging,serious fluid loss,drilling tools unloading and drilling time reducing to the minimum are important indicators to a large cave.The beads-shaped reflection and high abnormal impedance are the typical seismic response characteristic of cave reservoirs.Based on this,the spread of caves between wells can be predicted qualitatively.Besides,the reflection energy bodies and high-accuracy coherence cube can quantitatively predict caves distribution between wells.
引文
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[14]朱蓉,楼章华,鲁新便,等.塔河油田缝洞单元地下水化学特征及开发动态[J].石油学报,2008,29(4):567-572.ZHU Rong,LOU Zhang-hua,LU Xin-bian,et al.Chemical characteristics of underground water and devel-opment performance of fracture-cave units in Tahe Oil-field[J].Acta Petrolei Sinica,2008,29(4):567-572.
[15]张希明,朱建国,李宗宇,等.塔河油田碳酸盐岩缝洞型油气藏的特征及缝洞单元划分[J].海相油气地质,2007,12(1):21-24.ZHANG Xi-ming,ZHU Jian-guo,LI Zong-yu,et al.Ordovician carbonate fractured-vuggy reservoir in TaheOilfield,Tarim Basin:characteristics and subdivision offracture-vug units[J].Marine Origin Petroleum Geolo-gy,2007,12(1):21-24.
[2]吴欣松,魏建新,昌建波,等.碳酸盐岩古岩溶储层预测的难点与对策[J].中国石油大学学报:自然科学版,2009,33(6):16-21.WU Xin-song,WEI Jian-xin,CHANG Jian-bo,et al.Dif-ficulty and countermeasures in carbonate paleokarst reser-voir prediction[J].Journal of China University of Petrole-um(Edition of Natural Science),2009,33(6):16-21.
[3]张晓辉.塔河油田碳酸盐岩岩溶测井响应特征[J].新疆地质,2005,23(4):406-409.ZHANG Xiao-hui.The characteristics of logging data indissolved carbonate rocks in Tahe Oilfield[J].XinjiangGeology,2005,23(4):406-409.
[4]吴昌荣,伍文明,李海鹏,等.塔河油田四区鹰山组碳酸盐岩储层测井识别[J].新疆地质,2007,25(4):405-408.WU Chang-rong,WU Wen-ming,LI Hai-peng,et al.Logging identification of carbonate reservoir of Yingshanformation in block 4 of Tahe oilfield[J].Xinjiang Geolo-gy,2007,25(4):405-408.
[5]伍文明,康志宏,赵新法,等.塔河油田六区鹰山组缝洞型储层测井识别[J].石油地质与工程,2007,21(5):37-39.WU Wen-ming,KANG Zhi-hong,ZHAO Xin-fa,et al.Logging identification of Yingshan formation fissure-cavereservoir in the sixth block of Tahe Oilfield[J].Petrole-um Geology and Engineering,2007,21(5):37-39.
[6]吕景英.用波形分析法预测塔河油田碳酸盐岩储层[J].勘探地球物理进展,2004,27(2):112-116.LJing-ying.Prediction of carbonate reservoirs usingwaveform analysis in Tahe Oilfield[J].Progress in Ex-ploration Geophysick,2004,27(2):112-116.
[7]闫相宾,管路平,王世星.塔里木盆地碳酸盐岩缝洞系统的地震响应特征及预测[J].石油与天然气地质,2007,28(6):828-835.YAN Xiang-bin,GUAN Lu-ping,WANG Shi-xing.Seis-mic response characteristics and prediction of carbonaterock fractured-vuggy systems in the Tarim Basin[J].Oil&Gas Geology,2007,28(6):828-835.
[8]许杰,赵永勤,杨子川.应用波形分析技术预测塔河油田缝洞型储集层[J].新疆石油地质,2007,28(6):756-760.XU Jie,ZHAO Yong-qin,YANG Zi-chuan.Waveform a-nalysis technique and fissure-cavity reservoir prediction inTahe Oilfield[J].Xinjiang Petroleum Geology,2007,28(6):756-760.
[9]杨林,顾汉明,李宗杰,等.基于时频分析技术预测碳酸盐岩缝洞储层[J].天然气工业,2008,28(6):37-39.YANG Lin,GU Han-ming,LI Zong-jie,et al.The pre-diction of carbonate rock reservoir with crack-vug by thereflection time-frequency analysis[J].Natural Gas Indus-try,2008,28(6):37-39.
[10]王光付.碳酸盐岩溶洞型储层综合识别及预测方法[J].石油学报,2008,29(1):47-51.WANG Guang-fu.Integrative identification and predic-tion methods for carbonate rock cave reservoir[J].ActaPetrolei Sinica,2008,29(1):47-51.
[11]董宁,杨立强.基于小波变换的吸收衰减技术在塔河油田储层预测中的应用研究[J].地球物理学进展,2008,23(2):533-538.DONG Ning,YANG Li-qiang.Application of absorptionand attenuation based on wavelet transform for predictionof reservoir in Tahe Oilfield[J].Progress in Geophysics,2008,23(2):533-538.
[12]林昌荣,王尚旭,张勇.应用地震数据体结构特征法预测油层分布规律[J].中国石油大学学报:自然科学版,2008,32(2):39-43.LIN Chang-rong,WANG Shang-xu,ZHANG Yong.Predicting reservoir distribution by applying method ofseismic data structure characteristic[J].Journal of Chi-na University of Petroleum,2008,32(2):39-43.
[13]黄捍东,张如伟,赵迪,等.塔河奥陶系碳酸盐岩缝洞预测[J].石油地球物理勘探,2009,44(2):213-218.HUANG Han-dong,ZHANG Ru-wei,ZHAO Di,et al.Prediction of Ordovician carbonate fracture and cavern inTahe area[J].Oil Geophysical Prospecting,2009,44(2):213-218.
[14]朱蓉,楼章华,鲁新便,等.塔河油田缝洞单元地下水化学特征及开发动态[J].石油学报,2008,29(4):567-572.ZHU Rong,LOU Zhang-hua,LU Xin-bian,et al.Chemical characteristics of underground water and devel-opment performance of fracture-cave units in Tahe Oil-field[J].Acta Petrolei Sinica,2008,29(4):567-572.
[15]张希明,朱建国,李宗宇,等.塔河油田碳酸盐岩缝洞型油气藏的特征及缝洞单元划分[J].海相油气地质,2007,12(1):21-24.ZHANG Xi-ming,ZHU Jian-guo,LI Zong-yu,et al.Ordovician carbonate fractured-vuggy reservoir in TaheOilfield,Tarim Basin:characteristics and subdivision offracture-vug units[J].Marine Origin Petroleum Geolo-gy,2007,12(1):21-24.
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