Logging Inversion Method Research of Pore Pressure Causes:A Case Study of Well Y

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  • 1.PetroChina Research Institute of Petroleum Exploration and Development,Beijing 100083,China;
    2.Key Laboratory of Well Logging,PetroChina Company Limited,Beijing 100083,China;
    3.MWMC Research Group,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China

Received date: 2014-03-31

  Revised date: 2014-09-15

  Online published: 2015-02-10

Abstract

The causes of abnormal pressure are complex and also have different calculation methods.In practical applications,if the cause of abnormal pressure is not been fully aware,it can lead to serious errors.According to the cause of abnormal pressure in the study area,we chose Bowers method to process and analyze well Y in Dagang Oilfield and then found that the actual MDT test pressures were different from that calculated by Bowers method,this abnormal pore pressure has not been reported in the domestic oil fields.For this exception,on basis of the data collection and literature research,we analyze the pressure causes for the first time.We confirm the causes by using field research which is correct.This also shows that considering the causes of pore pressure calculation method is necessary and important on the other hand.Meanwhile,this also provides a train of thought for using pore pressure data to invert causes.

Cite this article

SONG Lian-teng,LIU Zhong-hua,LI Chao-liu,YUAN Chao . Logging Inversion Method Research of Pore Pressure Causes:A Case Study of Well Y[J]. Natural Gas Geoscience, 2015 , 26(2) : 371 -376 . DOI: 10.11764/j.issn.1672-1926.2015.02.0371

References

[1]Chai Xiyuan,Ding Yujiao.Combination technology of the pore structure and formation pressure for productivity prediction[J].Well Logging Technology,2012,36(6):635-640.[柴细元,丁娱娇.孔隙结构与地层压力相结合的储层产能预测技术[J].测井技术,2012,36(6):635-640.]
[2]Li Jun,Yuan Shuqin,Wu Gang.Deep abnormal pressure and hydrocarbon distribution in Qibei Paleogene[J].Petroleum Exploration and Development,2001,28(4):22-24.[李军,袁淑琴,武钢.歧北地区下第三系深层异常压力与油气分布[J].石油勘探与开发,2001,28(4):22-24.]
[3]Zha Ming,Qu Jiangxiu,Zhang Weihai.The relationship between overpressure and reservoir forming mechanism[J].Petroleum Exploration and Development,2002,29(1):19-23.[查明,曲江秀,张卫海.异常高压与油气成藏机理[J].石油勘探与开发,2002,29(1):19-23.]
[4]Du Xu,Zheng Hongyin,Jiao Xiuqiong.Abnormal pressure and hydrocarbon accumulation[J].Earth Science Frontiers,1995,2(3):138-148.[杜栩,郑洪印,焦秀琼.异常压力与油气分布[J].地学前缘,1995,2(3):138-148.]
[5]Ai Chi,Feng Fuping,Li Hongwei.Present situation and development trend of formation pressure prediction technology[J].Petroleum Geology and Engineering,2007,21(6):71-76.[艾池,冯福平,李洪伟.地层压力预测技术现状及发展趋势[J].石油地质与工程,2007,21(6):71-76.]
[6]Chang Wenhui,Qin Xuying.Technologies for prediction of pore pressure[J].Progress in Explration Geophysics,2005,28(5):314-319.[常文会,秦绪英.地层压力预测技术[J].勘探地球物理进展,2005,28(5):314-319.]
[7]Yang Fan,Yu Xinghe,Li Shengli,et al.Distribution characteristics of fluid pressure in Lixian slope,Raoyang sub-basin and its impact on hydrocarbon accumulations[J].Natural Gas Geoscience,2010,21(5):809-814.[杨帆,于兴河,李胜利,等.饶阳凹陷蠡县斜坡地层流体压力分布规律及其对油气成藏的影响[J].天然气地球科学,2010,21(5):809-814.]
[8]Huffman A R.The future of pore-pressure prediction using geophysical methods[J].The Leading Edge,2002,21(2):199-205.
[9]Ward C D,Coghill K.The Application of Petrophysical Data to Improve Pore and Fracture Pressure Determination in North Sea Central Graben HPHT Wells[C].SPE-28297-MS,1994:53-68.
[10]Terzaghi,Karl,Peck R B.Soil Mechanics in Engineering  Practice[M].New York:John Wiley & Sons inc.,1948:1-566.
[11]Foster  J B,Whalen J E.Estimation of formation pressures from electrical surveys-Offshore Louisiana[J].SPE-1200-PA,1966,18(2):165-171.
[12]Ham H H.A method of estimating formation pressures from Gulf Coast well logs[J].Transactions Gulf Coast Association of the Geological Society,1966,16:185-197.
[13]Eaton B A.The equation for geopressure prediction from well logs[J].SPE-5544-MS,1975:1-5.
[14]Osborne M J,Swarbrick R E,Mechanisms for generating overpressure in sedimentary basins:A re-evaluation[J].AAPG Bulletin,1997,81(6):1023-1041.
[15]Swarbrick R E,Osborne M J,Yardley G S.Comparison of Overpressure Magnitude Resulting from the Main Generating Mechanisms[M].Houston:AAPG,2002:1-238.
[16]Bowers G L.Pore pressure estimation from velocity data:accounting for overpressure mechanisms besides undercompaction[J].SPE-27488,1995,10(2):515-530.
[17]Zhou Lihong,Yu Xuemin,Jiang Wenya,et al.Overpressure retardation of the thermal evolution of Paleogene source rocks and its significance for petroleum geology in Qikou Sag[J].Natural Gas Geoscience,2013,24(6):1118-1124.[周立宏,于学敏,姜文亚,等.歧口凹陷异常压力对古近系烃源岩热演化的抑制作用及其意义[J].天然气地球科学,2013,24(6):1118-1124.]
[18]Zhu Jianjun,Zhang Xiaobao,Zhang Gongcheng,et al.A study of abnormal pressure distribution and formation mechanism in Qiongdongnan Basin[J].Natural Gas Geoscience,2011,22(2):324-330.[祝建军,张晓宝,张功成,等.琼东南盆地异常压力分布与形成机理探讨[J].天然气地球科学,2011,22(2):324-330.]
[19]Wang Yanzhong,Cao Yingchang,Li Yongxin,et al.Controlling factors on the Paleogene deep effective reservoirs in the Bonan Sag[J].Natural Gas Geoscience,2012,23(6):996-1003.[王艳忠,操应长,李永新,等.渤南洼陷古近系深层有效储层控制因素研究[J].天然气地球科学,2012,23(6):996-1003.]
[20]You Jun.Distribution and formation mechanism of abnormal pressure belt in the centre of Huanghua hollow[J].Oil Geophysical Prospecting,1997,32(supplment 1):141-147.[游俊.黄骅坳陷中区异常压力带的分布及其形成机制[J].石油地球物理勘探,1997,32(增刊1):141-147.]
[21]Tian Keqin,Li Hongxiang.Abnormal pressures and deep reservoir[J].Petroleum Explorationist,1998,3(3):37-41.[田克勤,李洪香.异常压力与深层油气藏-黄骅坳陷为例[J].勘探家,1998,3(3):37-41.]
[22]Traugott M.The Pore Pressure Centroid Concept:Reducing Drilling Risks[C].In Abstract:Compaction and Overpressure Current Research,9-10 December,Paris,IFP,1996:25-31.
[23]Traugott M.Pore/fracture pressure determinations in deep water[J].World Oil,1997,218(8):68-70.
[24]Yardley G S,Swarbrick R E.Lateral transfer:a source of additional overpressure[J].Marine and Petroleum Geology,2000,17(4):523-537.
[25]Bowers G L.Determining an Appropriate Pore-pressure Estimation Strategy[C].Houston:Offshore Technology Conference,2001:1-5.
[26]Bowers G L.Detecting high overpressure[J].The Leading Edge,2002,21(2):174-177.
 
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