Genetic mechanism of overpressure and its relationship with hydrocarbon accumulation in Dina-2 gasfield, Kuqa depression

doi:10.7623/syxb201205002

Editorial office of ACTA PETROLEI SINICA ›› 2012, Vol. 33 ›› Issue (5): 739-747.DOI: 10.7623/syxb201205002

• Petroleum Exploration • Previous Articles Next Articles

Genetic mechanism of overpressure and its relationship with hydrocarbon accumulation in Dina-2 gasfield, Kuqa depression

ZHANG Fengqi 1,2　WANG Zhenliang 2　ZHAO Xuejiao 2　SONG Yubin 3

Received:2012-02-28 Revised:2012-06-02 Online:2012-09-25 Published:2012-11-27

库车坳陷迪那2气田异常高压成因机制及其与油气成藏的关系

张凤奇 1,2　王震亮 2　赵雪娇 2　宋玉斌 3

1　西安石油大学地球科学与工程学院　陕西西安　710065；2　西北大学地质学系　陕西西安　710069；3　中国石油塔里木油田公司塔中勘探开发项目经理部　新疆库尔勒　841000

通讯作者: 张凤奇
作者简介:张凤奇，男，1981年4月生，2011年获西北大学博士学位，现为西安石油大学地球科学与工程学院讲师，主要从事油气成藏动力学和油气形成机制方面的研究。
基金资助:
国家重大科技专项（2008ZX05003）资助。

Abstract

Abstract:

Based on the distribution of formation pressure estimated from acoustic logging data and measured with the DST/RFT method, we investigated the genetic mechanism of overpressure in the Dina-2 gasfield of the Kuqa depression in combination with practical geological data and latest research results. The contribution of main overpressure mechanisms to the present overpressure was estimated, and lastly the forming process of overpressure and its correlation with natural gas accumulation were studied as well. The results show that disequilibrium compaction, tectonic stress and overpressure transmission are the main mechanisms of overpressure in the Dina-2 gasfield, of which the overpressure transmission caused by vertical opening of faults and fold formation is the most important influence factor. The gas accumulation in reservoirs of the Dina-2 gasfield shows synchroneity with overpressure formation. Reservoirs in the Dina-2 gasfield used to have a normal pressure system during the early oil-gas charging in the Kangcun stage. Rapid sedimentation in the Kuqa Formation sedimentary stage resulted in disequilibrium compaction, which forms an excess pressure of about 5 to 10 MPa in reservoirs. Vertical overpressure transmission formed by the episodic opening of faults and lateral overpressure transmission by folds and the horizontal tectonic stress under intensive tectonic compression greatly increased the scope of the excess pressure since denudation stage of the Kuqa Formation, which makes reservoirs form an excess pressure of about 40 to 50 MPa. This stage is the major period of the extremely high overpressure formation and gas accumulation in the Dina-2 gasfield.

Key words: abnormal high pressure, overpressure transmission, tectonic compression, Dina-2 gasfield, Kuqa depression

摘要：

通过对间接估算和地层测试获取的地层压力分布特征的研究，结合实际地质资料和前人最新研究成果，分析了库车坳陷迪那2气田异常高压的成因机制，并估算了主要超压机制对现今超压的贡献，探讨了异常高压形成过程及其与天然气藏形成的关系。结果表明，不均衡压实、构造应力和超压传递作用为迪那2气田异常高压的主要形成机制，其中断裂的垂向开启和褶皱形成引起的超压传递作用是最主要原因。迪那2气藏的形成与气藏内异常高压的形成具有同步性，康村期的早期油气充注时，储层基本为正常压力系统；库车沉积期快速的沉积作用产生了压实不均衡作用，形成了约5~10 MPa的过剩压力；库车组剥蚀期到第四纪，在强烈的构造挤压作用下，断裂幕式开启形成的垂向超压传递作用、褶皱形成引起的侧向超压传递作用和水平的构造应力作用，极大地增大了储层中异常压力的幅度，形成了约40~50 MPa的过剩压力，该时期为迪那2气田超高压及气藏形成的主要时期。

关键词: 异常高压, 超压传递, 构造挤压, 迪那2气田, 库车坳陷

ZHANG Fengqi　WANG Zhenliang　ZHAO Xuejiao　SONG Yubin. Genetic mechanism of overpressure and its relationship with hydrocarbon accumulation in Dina-2 gasfield, Kuqa depression[J]. Editorial office of ACTA PETROLEI SINICA, 2012, 33(5): 739-747.

张凤奇　王震亮　赵雪娇　宋玉斌. 库车坳陷迪那2气田异常高压成因机制及其与油气成藏的关系[J]. 石油学报, 2012, 33(5): 739-747.

References

[1]颜文豪，李建明，王冬梅，等.库车坳陷迪那2气田地质特征与沉积储层研究[J].天然气地球科学，2009，20（1）：86-93.

Yan Wenhao,Li Jianming,Wang Dongmei,et al.Geologic characteristics and sedimentary reservoir of Dina 2 gas field in Kuqa depression[J].Natural Gas Geoscience,2009,20(1):86-93.

[2]马玉杰，谢会文，蔡振忠，等.库车坳陷迪那2气田地质特征[J].天然气地球科学，2003，14（5）：371-374.

Ma Yujie,Xie Huiwen,Cai Zhenzhong,et al.The geology feature of Dina 2 gas field,Kuche depression[J].Natural Gas Geoscience,2003,14(5):371-374.

[3]孙冬胜，金之钧，吕修祥，等.库车前陆盆地迪那2气田成藏机制及成藏年代[J].石油与天然气地质，2004，25（5）：559-564.

Sun Dongsheng,Jin Zhijun,Lü Xiuxiang,et al.Reservoiring mechanism and finalization period of Dina 2 gasfield in Kuqa basin[J].Oil & Gas Geology,2004,25(5):559-564.

[4]曾联波，周天伟，吕修祥.构造挤压对库车坳陷异常地层压力的影响[J].地质论评，2004，50（5）：471-475.

Zeng Lianbo,Zhou Tianwei,Lü Xiuxiang.Influence of tectonic compression on the abnormal formation pressure in the Kuqa Depression[J].Geological Review,2004,50(5):471-475.

[5]石万忠，陈红汉，何生.库车坳陷构造挤压增压的定量评价及超压成因分析[J].石油学报，2007，28（6）：59-64.

Shi Wanzhong,Chen Honghan,He Sheng.Quantitative evaluation on contritution of structural compression to overpressure and analysis on origin of overpressure in Kuqa Depression[J].Acta Petrolei Sinica,2007,28(6):59-64.

[6]Osborne M J,Swarbrick R E.Mechanisms for generating overpressure in sedimentary basins:a reevaluation[J].AAPG Bulletin,1997,81(6):1023-1041.

[7]刘晓峰.超压传递：概念和方式[J].石油实验地质，2002，24（6）：533-535.

Liu Xiaofeng.Overpressure transference:concept and ways[J].Petroleum Geology & Experiment,2002,24(6):533-535.

[8]罗晓容.构造应力超压机制的定量分析[J].地球物理学报，2004，47（6）：1086-1093.

Luo Xiaorong.Quantitative analysis on overpressuring mechanism resulted from tectonic stress[J].Chinese Journal of Geophysics,2004,47(6):1086-1093.

[9]Guo X W,He S,Liu K Y,et al.Oil generation as the dominant overpressure mechanism in the Cenozoic Dongying depression,Bohai Bay Basin,China[J].AAPG Bulletin,2010,94(12):1859-1881.

[10]马玉杰，郜国玺，张丽娟，等.迪那2气田气藏类型研究[J].天然气地球科学，2004，15（1）：91-94.

Ma Yujie,Gao Guoxi,Zhang Lijuan,et al.The kind of Dina 2 gas field[J].Natural Gas Geoscience,2004,15(1):91-94.

[11]何光玉，卢华复，杨树锋，等.库车中新生代盆地沉降特征[J].浙江大学学报:理学版，2004，31（1）：110-113.

He Guangyu,Lu Huafu,Yang Shufeng,et al.Subsiding features of the Mesozoic and Cenozoic Kuqa basin,Northwestern China[J].Journal of Zhejiang University:Science Edition,2004,31(1):110-113.

[12]曾联波，谭成轩，张明利.塔里木盆地库车坳陷中新生带构造应力场及其油气运聚效应[J].中国科学D辑：地球科学，2004，34（增刊I）：98-106.

Zeng Lianbo,Tan Chengxuan,Zhang Mingli.Tectonic stress field and its effect on hydrocarbon migration and accumulation in Mesozoic and Cenozoic in the Kuqa Depression,Tarim Basin[J].Science in China Series D:Earth Sciences,2004,47(Suppl.Ⅱ):114-124.

[13]李曰俊，吴根耀，雷刚林，等.新疆库车新生代前陆褶皱冲断带的变形特征、时代和机制[J].地质科学，2008，43（3）：488-506.

Li Yuejun,Wu Genyao,Lei Ganglin,et al.Deformational features,ages and mechanism of the Cenonzoic Kuqa foreland fold-and-thrust belt in Xinjiang[J].Chinese Journal of Geology,2008,43(3):488-506.

[14]Ramdhan A M,Goulty N R.Overpressure and mudrock compaction in the Lower Kutai Basin,Indonesia:a radical reappraisal[J].AAPG Bulletin,2011,95(10):1725-1744.

[15]Bowers G L.Detecting high overpressure[J].The Leading Edge,2002,21(2):174-177.

[16]罗晓容.数值盆地模拟方法在地质研究中的应用[J].石油勘探与开发，2000，27（2）：6-10.

Luo Xiaorong.The application of numerical basin modeling in geological studies[J].Petroleum Exploration and Development, 2000,27(2):6-10.

[17]Tingay M R P,Hillis R R,Swarbrick R E,et al.Origin of overpressure and pore-pressure prediction in the Baram province, Brunei[J].AAPG Bulletin,2009,93(1):51-74.

[18]Audet D M,McConnell J D C.Forward modelling of porosity and pore pressre evolution in sedimentary basins[J].Basin Research,1992,4:147-162.

[19]罗晓容，肖立新，李学义，等.准噶尔盆地南缘中段异常压力分布及影响因素[J].地球科学——中国地质大学学报，2004，29（4）：404-412.

Luo Xiaorong,Xiao Lixin,Li Xueyi,et al.Overpressure distribution and affecting factors in southern margin of Junggar basin[J].Earth Science:Journal of China University of Geosciences,2004,29(4):404-412.

[20]Berry F A F.High fluid potentials in California Coast Ranges and their tectonic signnificance[J].AAPG Bulletin,1973,57(7):1219-1249.

[21]王震亮，张立宽，施立志，等.塔里木盆地克拉2气田异常高压的成因分析及其定量评价[J].地质论评，2005，51（1）：55-62.

Wang Zhenliang,Zhang Likuan,Shi Lizhi,et al.Genesis analysis and quantitative evaluation on abnormal high fluid pressure in the Kela 2 Gas Field,Kuqa Depression,Tarim Basin[J].Geological Review,2005,51(1):55-62.

[22]Bilotti F,Shaw J H.Deep-water Niger Delta fold and thrust belt modeled as a critical-taper wedge:the influence of elevated basal fluid pressure on structural styles[J].AAPG Bulletin,2005,89(11):1475-1491.

[23]Feyzullayev A A,Lerche I.Occurrence and nature of overpressure in the sedimentary section of the South Caspian Basin,Azerbaijan[J].Energy Exploration & Exploitation,2009,27(5):345-366.

[24]Luo X R,Wang Z M,Zhang L Q,et al.Overpressure generation and evolution in a compressional tectonic setting,the southern margin of Junggar Basin,northwestern China[J].AAPG Bulletin,2007,91(8):1123-1139.

[25]王清晨，张仲培，林伟.库车盆地—天山边界的晚第三纪断层活动性质与应力状态[J].科学通报,2003,48(24):2553-2559.

Wang Qingchen,Zhang Zhongpei,Lin Wei.Tertiary fault active feature and stress state in the boundary of Kuqa Basin and Tianshan[J].Chinese Science Bulletin,2003,48(24):2553-2559.

[26]张明利，谭成轩，汤良杰，等.塔里木盆地库车坳陷中新生代构造应力场分析[J].地球学报，2004，25（6）：615-619.

Zhang Mingli,Tan Chengxuan,Tang Liangjie,et al.An analysis of the Mesozoic-Cenozoic tectonic stress field in Kuqa depression,Tarim Basin[J].Acta Geoscientica Sinica,2004,25(6):615-619.

[27]张凤奇，王震亮，宋岩，等.库车坳陷构造挤压增压定量评价的新方法[J].中国石油大学学报：自然科学版，2011，35（4）：1-7.

Zhang Fengqi,Wang Zhenliang,Song Yan,et al.The new method of quantitative evaluation on pressurization according to tectonic compression in Kuqa depression[J].Journal of China University of Petroleum:Edition of Natural Science,2011，35（4）：1-7.

[28]罗晓容.断裂成因他源高压及其地质特征[J].地质学报，2004，78（5）：641-647.

Luo Xiaorong.Allogenic overpressuring associated with faulting and geological consequences[J].Acta Geologica Sinica,2004,78(5):641-647.

[29]Barker C.Calculated volume and pressure changes during the thermal cracking of oil and gas in reservoirs[J].AAPG Bulletin,1990,74(8):1254-1261.

[30]梁狄刚，张水昌，赵孟军，等.库车坳陷的油气成藏期[J].科学通报，2002，47（增刊）：56-63.

Liang Digang,Zhang Shuichang,Zhao Mengjun,et al.Hydrocarbon sources and stages of reservoir formation in Kuqa depression[J].Chinese Science Bulletin,2002,47(Sup):56-63.

[31]赵孟军，卢双舫.库车坳陷两期成藏及其对油气分布的影响[J].石油学报，2003，24（5）：16-20.

Zhao Mengjun,Lu Shuangfang.Two periods of reservoir forming and their significance for hydrocarbon distribution in Kuqa Depression[J].Acta Petrolei Sinica,2003,24(5):16-20.

[32]赵靖舟，戴金星.库车油气系统油气成藏期与成藏史[J].沉积学报，2002，20（2）：314-318.

Zhao Jingzhou,Dai Jinxing.Accumulation timing and history of Kuche petroleum system,Tarim Basin[J].Acta Sedimentologica Sinica,2002,20(2):314-318.

Genetic mechanism of overpressure and its relationship with hydrocarbon accumulation in Dina-2 gasfield, Kuqa depression

库车坳陷迪那2气田异常高压成因机制及其与油气成藏的关系

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