摘要
本文综合利用钻井、测井、地震等资料,应用盆地模拟技术,结合流体包裹体测温、包裹体拉曼光谱成分分析及自生伊利石测年等先进方法,对渤海湾盆地冀中坳陷文安斜坡石炭—二叠系的埋藏史、地热史、生排烃史和成藏演化史进行了数值模拟。
研究表明,本区石炭—二叠纪烃源岩在中生代发生一次生烃和排烃,并有油气充注,后因燕山运动导致地层抬升,一次生烃和成藏过程中止;在早第三纪,原来东倾的地层变为西倾,断块圈闭开始具雏形;至早第三纪沙二末期,石炭—二叠系的大部分地层古地温再次超过中生代一次生烃的温度,开始二次生烃和排烃,圈闭持续发育;晚第三纪末—第四纪,二次生烃、排烃达到高峰,二次成藏完成。沙三期火成岩较大范围的侵入石炭—二叠系,对生烃和成藏具有积极意义,通过计算得出火成岩对生烃的贡献为62.4%。
本文首次在文安斜坡应用成藏年代学精确地测得了以石炭—二叠纪煤系为源岩的油气藏成藏年龄为108.274±1.57Ma;进一步完善了盆地模拟软件,首次定量地模拟计算了火成岩侵入对生烃的贡献这一技术难题,在这一方向上我们作了大胆的尝试。
By comprehensively applying the data of logging, drilling and seismic data, and depending on basin-modeling technology, and synchronously, integrating fluid inclusion homogenization, Raman spectrum ingredient assay and autogeny illite Age-determining technique, we had the numeric modeling of Carboniferous-Permian coal measure, including burial history, terrestrial heat history, hydrocarbon-generating and hydrocarbon-expulsing history and reservoir-forming history, at the Wenan Slope of Jizhong Depression, in the Bohaiwan Basin.
Through research, The organic matter of source rocks in Carboniferous-Permian coal measure strata began first hydrocarbon-generating in mesozoic, and the first hydrocarbon-filling took place. But, because of Yanshan movement later, the Carboniferous-Permian strata rose, as a result, the first hydrocarbon-generating and reservoir-forming paused; In early Tertiary period, because Carboniferous-Permian strata dipping forward east originally turned into dipping forward west, the prototype of faulted block began to form gradually; By the end of Sha-3 period of early Tertiary, the paleogeotherm of Carboniferous-Permian strata exceed the Mesozoic's temperature again, and accordingly, abundant hydrocarbon was generated and expulsed secondly. The trap continued to develop; from the end of late Tertiary to Quaternary, the second hydrocarbon-generating and expulsing got to its peak, and the second reservoir-forming was over. In the period of Sha-3 Formation, Volcanic cocks invaded into Carboniferous-Permian strata in a large scale, which can bring positive effect on hydrocarbon generating and reservoir-forming. Through modeling and calculation, we have figured out that contribution to hydrocarbon-generating caused by volcanic rocks' invasion is 62.4 percent.
In my article, we first have made a conclusion by reservoir-forming chronology that the forming-age of reservoir is 108.27 ?.57Ma, of which, the source rock came from Carboniferous-Permian strata; We have perfected our Basin-modeling software, so it can calculate quantificationally the contribution radio to hydrocarbon-generating caused by igneous intrusion as a technical problem, in which we have a daring trail.
引文
[1] 秦建中,贾蓉芬,郭爱明等.华北地区煤系烃源岩油气生成·运移·评价.北京:科学出版社,2000:259-260
[2] 孟元林等.盆地模拟在油气田勘探初期阶段的应用.天然气工业,1994,14(4):6-9
[3] 石广仁.油气盆地数值模拟方法.北京:石油工业出版社,1994:12-20
[4] 石广仁.油气盆地数值模拟方法.北京:石油工业出版社,1994:21-22
[5] 石广仁.油气盆地数值模拟方法.北京:石油工业出版社,1994:27
[6] Ungerer,B.P., J.Burrus, B.Doligez, P.Y.Chenet, and F.Bessis. Basin evaluation by integrated two-dimensional modeling of heat transfer, fliud flow, hydrocarbon generation, and migration. AAPG Bull, 1990,74:309-335
[7] 孟元林,吕延防等.地温史和有机质成岩史的一维模拟.大庆石油学院学报,1989,13(2):1-6
[8] Waples,D.W.. The art of maturity modeling. AAPG Bull, 1992, 76(2):31-46
[9] Sweeny,J.J, and Burham,A.K.. Evaluation of a simple model of vitrinite reflectance based on chemical kinetics. AAPG Bull, 1990,74:1559-1570
[10] Welte,D.H., and M.A.Yukler. Petroleum origion and accumulation in basin evolufion-A quantitative model. AAPG Bull, 1981,65:1387-1396
[11] Ungerer,P., J.Burrus, B.Doligez, P.Y.Chenet, and F.Bessis. Basin evaluation by integrated two-dimensional modeling of heat transfer, fluid flow, hydrocarbon genemtion and migration. AAPG Bull, 1990,74:309-335
[12] Lerche,I.. Basin analysis quantitative methods. Acamedic Press, San Diego, California, 1990, 1:132-199
[13] 孟元林等.油气生成的化学动力学模型和煤成气的数值模拟.中国海上油气,1995,9(1):27-30
[14] Nakayama,K., And D.C.V.Siclen. Simulation model for petroleum exploration. AAPG Bull, 1981,65:1230-1255
[15] 石广仁.油气盆地数值模拟方法.北京:石油工业出版社,1994:47-73
[16] 韩玉芨等.油气资源评价方法研究与应用(油气资源评价方法研究与应用编委会编).北京:石油工业出版社,1988.
[17] 郝石生等.天然气藏的形成和保存.北京:石油工业出版社,1995:51-57
[18] 秦建中,贾蓉芬,郭爱明等.华北地区煤系烃源岩油气生成·运移·评价.北京:科学出版社,2000:118
[19] 王兆云,秦勇,曹代勇等.渤海湾及外围深层烃源岩研究(科研报告,中国石油天然气集团公司东部深层项目).1999:200-203
[20] 郝石生等.天然气藏的形成和保存.北京:石油工业出版社,1995:44-58
[21] Nakayama,k.. Hydrocarbon-expulsion model and its application to Niigata Area. Japan: AAPG Bull, 1987,71:810-821
[22] Ungerer,P.. State of the an of research in kinetic modeling of oil formation and expulsion. Advanses in organic geochemistry, Org. Geochem., 1990,16:1-3
[23] 孟元林等.石油初次运移史的两相渗流模型及应用.大庆石油学院学报,1992,16(3):6-10
[24] 孟元林等.初次运移的三相渗流模型及应用.河北省科学院学报,1994,11(3):41-43
[25] 石广仁.油气盆地数值模拟方法.北京:石油工业出版社,1994:82-87
[26] 郝石生等.天然气藏的形成和保存.北京:石油工业出版社,1995:49-51
[27] Forbles,P.L., Ungerer, P., Kuhfuee,A.B., Riis,F., And Eggen. Compositional modeling of petroleum generation and expulsion. Trial application to a local mass balance in the Smorbukk Sor field, Haltenbanken area ,norway. AAPG Bull, 1991,75(5): 873-893
[28] 庞雄奇等.含油气盆地地史,热史,生烃排烃史数值模拟研究与烃源岩定量评价.北京:地质出版社,1993:70-91
[29] 孟元林,肖丽华,杨俊生等.成岩演化数值模拟及其应用.地学前缘,2000,4:430
[30] Meng yuanlin, Yang junsheng, Xiao lihua, Li chen, and Tan xuequn. Diagenetic evolution modeling system and its application. In: Hao Dongheng, Niu Shuyin and Liu yamin. Treatises of ⅪⅠkerulien international conference of geoology. Journal of Shijiazhuamg University of Economics, 2001,24:25-27
[31] 孟元林等.粘土矿物转化的化学动力学模型及其应用.沉积学报,1996,14(2):110-116
[32] Mackenize,A.S., and D.Mckenice. Isomerization and aromatization of hydrocarbon in sedimentary basin formed by extension. Geo. Mag., 1983,120:417-470
[33] 王行信,周书欣等.砂岩储层粘土矿物与油层保护.北京:地质出版社,1992:43-68
[34] Eberl,D.D., And Hower,J.. Kinitics of illite formation. Geological society of Amer Bull, 1976,87(2): 1326-1330
[35] Elliot,W.C., Aronson,J.L., Matisoff, G., And Gautier,D.L.. Kinetics of the smectite to illite transformation in Denven Basin:Clay mineral, K-Ar data and mathematical model result. AAPG Bull, 1991,75(1): 436-462
[36] 关平.成岩作用中蒙脱石向伊利石转化的化学动力学模型及其意义.地球化学,1991,2:197-202
[37] Wuu-Liang Huang, John M.Longo, and David R.Pever. An experimentally derived kinetic model for smectite-to-illite cinversion and its use as a geothmometer. Clays and Minerals, 1993,41 (2): 162-177
[38] 孟元林等.粘土矿物转化的化学动力学模型和应用.中国海上油气,1996,14(2):110-112
[39] 裘怿楠,薛书浩,应凤祥等.中国陆相油气储集层.北京:石油工业出版社,1997:158-169
[40] Ehrenberg,S.N.. Relationship between diagenesis and reservoir quality in sandstones of the Ga rn Formation, Halten-banken, mid-Norwegian continental shelf. AAPG Bull, 1990,74:1538-1558
[41] Bjorlykke,K., T.Nedkvitne, M.Ramm, and G.C.Saigal. Diagenetic processes in the Brent Group (Middle Jurassic) reservoirs of the north sea. an overview. In: A.C.Morton, R.S.Haszeldine, M.R. Gailes, and S.Brown, eds.. Geology of the Brent Group. Geological Society of London Special Publication, 1992,61:263-287
[42] Walderhaug,O.. Kinetic modeling of quartz cementation and porosity loss in deeply buried sandstone reservoirs. AAPG Bull, 1996,80:731-745
[43] Rimstidt, J.D., and H.L.Barnes. The kinetics of silica-water reactions. Geochimica et Cosmochimica Acta, 1980,44:1683-1699
[44] Lasaga. A.C.. Chemical kinetics of water-rock interactions. Journal of Geophysical Research, 1984,89:4009-4025
[45] 应凤祥,许怀先等.冀东油田深层储层评价—老爷庙地区深层储层成岩数值模拟及评价(科研报告,中国石油天然气公司东部深层项目).1999,42-44
[46] 李泰明.石油地质过程定量研究概论.北京:石油大学出版社,1989:4-6
[47] 裘怿楠,薛书浩,应凤祥.中国陆相油气储集层.北京:石油工业出版社,1997:210-219
[48] 应凤祥.碎屑岩成岩阶段划分规范(中华人民共和国石油天然气行业标准).1993:1-6
[49] 应凤祥.根据陆相碎屑岩储集成岩演化预测次生孔隙和油气分布.见:中国地质学会编.“七五”地质科技重要成果学术交流会论文选集.北京:北京科学研究技术出版社.
[50] 郝石生,陈章明,高耀斌等.天然气藏的形成和保护.北京:石油工业出版社,1995:116-118.
[51] 王明明,史占祯等.冀中坳陷北部二维盆地模拟成果报告(科研报告,石油勘探开发科学研究院廊坊分院天然气研究所).2000:20-21
[52] Dow W.G..Kerogen Studies and geological interpretation.Journal of Geochemical Exploration,1977,7:79-99
[53] 真柄钦次,陈立荷译.压实与流体运移.北京:石油工业出版社,1981,35-38
[54] 王明明,史占祯等.冀中坳陷北部二维盆地模拟成果报告(科研报告,石油勘探开发科学研究院廊坊分院天然气研究所).2000:9-12
[55] 肖丽华,孟元林,王建国等.碎屑岩成岩温度的数值模拟和成岩阶段的预测.中国海上油气,1995,9(6):389-394
[56] 王钧等.中国地温分布的基本特征.北京:地震出版社,1990:1-20
[57] 王明明,史占祯等.冀中坳陷北部二维盆地模拟成果报告(科研报告,石油勘探开发科学研究院廊坊分院天然气研究所).2000:22-23
[58] G.邦特巴思著.(易志新,熊亮萍译).地热学导论.北京:地震出版社,1988:1-6
[59] 王钧,周家平等.华北平原中低温地热资源及其利用的环境影响.北京:地震出版社,1992:5-20
[60] 孟元林等.地温史和有机质成熟史的一维模型.大庆石油学院学报,1989,13(2):1-6
[61] 陈墨香.华北地热 北京:科学出版社,1988:11-12
[62] 张菊明等.有限单元法在地热研究中的应用.北京:科学出版社,1986:15-22
[63] 王兆云,秦勇,曹代勇等.渤海湾及外围深层烃源岩研究(科研报告,中国石油天然气集团公司东部深层项目).1999:124-128
[64] 程克明等.吐哈油气生成.北京:石油工业出版社,1994:189-192
[65] 程克明等.黄骅坳陷中南区上、下古生界生烃条件及油气源精细对比研究(科研报告,中国石油勘探开发研究院油气地球化学重点实验室,大港油田地质勘探开发研究院).2000:131-132
[66] 秦建中,贾蓉芬,郭爱明等.华北地区煤系烃源岩油气生成·运移·评价.北京:科学出版社,2000:276-278