Analysis of pool forming pattern and progress of Khuff Formation in UAE
Received date: 2016-10-20
Revised date: 2017-02-28
Online published: 2017-04-10
Khuff Formation of Permian is the most important gas production zone in Middle East.From 1970′s,the Khuff Formation exploration works had been carried out in UAE and few traps had been discovered.However,the exploration result is not good:all the onshore traps test are dry or with water;the offshore trap test have limited gas with lots of NHCG.It′s very difficult for the future exploration work for Khuff reservoir.Khuff reservoirs have good source,reservoir and cap.The Qusaiba hot shale is the source of Khuff reservoir;the Sudair muddy limestone and middle anhydrite in Khuff are both good cap rock for Khuff reservoir.Based on the analysis of comprehensive information,the key point of Khuff gas reservoir effectiveness is the structure development and the generation and migration of source.The pool forming pattern shows:the offshore trap was developed with salt swell in the early stage and effected by Acadian,Hercynian and Zagros structure movement in the late stage.The offshore Khuff trap kept integrated.In Jurassic,oil migrated to the offshore trap and accumulated;In Late Cretaceous,oil cracked into gas.Then the gas reservoir of offshore Khuff trap is effective.However,as the burial depth of Khuff Formation becomes more and more,more and more H2S and CO2 are generated due to TSR.The development of onshore traps began in Oligocene and was affected by Zagros structure movement.The trap formation time is later than that of the formation and migration of source,so the onshore Khuff traps have no gas.
Key words: Pool forming pattern; Khuff Formation; Structural evolution; Oil cracked gas; NHCG
Chen Jie,Zhang Jian,Fang Jie . Analysis of pool forming pattern and progress of Khuff Formation in UAE[J]. Natural Gas Geoscience, 2017 , 28(4) : 521 -528 . DOI: 10.11764/j.issn.1672-1926.2017.03.002
[1]Alsharhan A S.Facies and sedimentray environment of the Permian Carbonates(Khuff Formation) in the United Arab Emirates[J].Sedimentary Geology,1993,84(1-4):89-99.[ZK)]
[2]Bai Guoping,Zheng Lei.Distribution pattern of giant gasfield in the world[J].Natural Gas Geoscience,2007,18(2):161-167.[白国平,郑磊.世界大气田分布特征[J].天然气地球科学,2007,18(2):161-167.]
[3]Jia Xiaole,He Dengfa,Tong Xiaoguang,et al.Formation and distribution of giant gasfields in persian Gulf Basin[J].China Petroleum Exploration,2011,3(3):8-22.[贾小乐,何登发,童晓光,等.波斯湾盆地大气田的形成条件与分布规律[J].中国石油勘探,2011,3(3):8-22.]
[4]Li Haowu,Tong Xiaoguang.Geological characteristics of gas accumulation combination of persian Khuff Formation in Gulf Basin[J].Natural Gas Geoscience,2012,23(4):727-735.[李浩武,童晓光.波斯湾盆地Khuff组成藏组合地质特征[J].天然气地球科学,2012,23(4):727-735.]
[5]EI Bishlawy S H.Geology and hydrocarbon occurrence of the Khuff Formation in Abu Dhabi,U.A.E[J].SPE13678:9-24
[6]Abdulrahman S A.Sedimentological Character and hydrocarbon parameter of the Middle Permian to Early Triassic Khuff Formation[J].GeoArabia,2006 11(3):121-158.
[7]Jia Xiaole,He Dengfa,Tong Xiaoguang,et al.Geological characteristics and hydrocarbon accumulation model of the upper Paleozoic Khuff-Lower Mesozoic Sudair Play in the Central Arab Basin[J].Xinjiang Petroleum Geology,2014,35(3):369-374.[贾小乐,何登发,童晓光,等.中阿拉伯盆地Khuff-Sudair组油气藏地质特征及成藏模式[J].新疆石油地质,2014,35(3):369-374.]
[8]Alsharhan A S,Nairn A E M.The late permian carbonates(Khuff Formation) in the Western Arabian Gulf:Its hydrocarbon parameters and paleogeographical aspects[J].Carbonates and Evaporites,1994,9(2):132-142
[9]Bordenave M L.The origin of the permo-triassic gas accumulations in the Iranian Zagros Foldbelt and contiguous offshore area a review of the Palaeozoic petroleum system[J].Journal of Petroleum Geoloyg,2008 31(1):3-42
[10]Worden R H,Smalley P C.H2S-producing reactions in deep Carbonate gas reservoir:Khuff Formation,Abu Dhabi[J].Chemical Geology,133(196):157-171.
[11]Patricia E.Videtich.Dolomitization and H2S Generation in the Permian Khuff Formation,Offshore DUBAI,U.A.E[J].Carbonates and Evaporites,1994 9(1):42-57.
[12]Dai Jinxing.Distribution,classification and origin of natural gas with hydrogen sulfide in China[J].Acta Sedimentological Sinica,1985,3(4):109-118.[戴金星.中国含硫化氢的天然气分布特征、分类及其成因探讨[J].沉积学报,1985,3(4):109-118.]
[13]Zhu Guangyou,Dai Jinxing,Zhang Shuichang,et al.Generation mechanism and distribution characteristics of hydrogen sulfide bearing gas in China[J].Natural Gas Geoscience,2004,15(2):166-170.[朱光有,戴金星,张水昌,等.含硫化氢天然气的形成机制及分布规律研究[J].天然气地球科学,2004,15(2):166-170.]
[14]Zhu Yuenian,Shi Buqing.Analysis on origins of molecular nitrogen in natural gases and their geochemical features[J].Geology-Geochemistry,1998,26(4):50-55.[朱岳年,史卜庆.天然气中N2来源及其地球化学特征分析[J].地质地球化学,1998,26(4):50-55.]
[15]Zhu Yuenian,Shi Buqing.Analysis on origins of molecular nitrogen in natural gases and their geochemical features[J].Journal of the University of Petroleum,China.1999,23(2):22-26.[朱岳年,史卜庆.天然气中分子氮成因及判识[J].石油大学学报:自然科学版,1999,23(2):22-26.]
[16]Chen Shijia,Fu Xiaowen,Shen Zhaoguo,et al.Molecular nitrogen genesis in natural gases and relationship with gas accumulation history in Tarim Basin[J].Acta Sedimentological Sinica,2000,18(4):615-618.[陈世加,付晓文,沈昭国,等.塔里木盆地中高氮天然气的成因及其与天然气聚集的关系[J].沉积学报,2000,18(4):615-618.]
/
〈 |
|
〉 |