THE RESERVOIR-FORMING CONDITION AND ENRICHMENT RULE OF THE NATURAL GAS IN THE DONGPU DEPRESSION, THE BOHAIWAN BASIN
-
摘要: 渤海湾盆地东濮凹陷具有下第三系和上古生界2套烃源岩,生烃中心控制着气藏分布,构造特征控制着天然气的聚集,盐岩、厚层泥岩盖层有利于天然气藏的保存,生、储、盖组合关系决定了天然气纵向上的分段性。深层高异常压力和次生孔隙发育带是天然气富集高产的重要条件。东濮凹陷天然气分为上古生界煤成气和下第三系凝析气2种成藏模式,具有晚期成藏和幕式成藏的特点。东濮凹陷目前天然气剩余资源量较大,是中国东部重要的天然气勘探开发阵地,下一步应以下第三系凝析气藏和上古生界煤成气藏作为勘探的重点。Abstract: There are two types of gas source rocks in Paleogene and Upper Paleozoic in the Dongpu Depression,the Bohai wan Basin.The distribution of the natural gas reservoirs are controlled by the center of hydrocarbon generation.The accumulations of the natural gas are controlled by the tectonic characteristics.The salt rock and thick mud rock are propitious to the preservation of the natural gas.Source bed,reservoir and cap rock determine the natural gas's subsection characters in portrait.The high abnormal pressure and secondary pore zone in depth are important conditions of the natural gas enrichment and high yield.There are two reservoir-forming modes of the natural gas in the Dongpu Depression,i.e.Upper Paleozoic coal-formed gas and Paleogene condensate gas.They are characterized by the later period and episodic reservoir-forming.The residual resources of the natural gas is bigger at present in the Dongpu Depression.It is an important exploration area of the natural gas in the eastern China.The Upper Paleozoic coal-formed gas and Paleogene condensate gas is the stress in the future.
-
[1] 何显莉,王秀林,武小玲等.东濮凹陷天然气成因类型及勘探方向[J].断块油气田,2002,9(6):25～28 [2] 朱家蔚,戚厚发.文留煤成气的发现及其对华北盆地找气的意义[J].石油勘探与开发,1983,10(1):4～12 [3] 朱家蔚,许化政.东濮凹陷煤成气地化指标及其与油成气的对比[J].石油与天然气地质,1985,6(3):272～279 [4] 谈彩萍,刘翠荣,周新科等.中国东部老油区油气成藏特征[J].石油实验地质,2005,27(2):144～149 [5] 许化政,周新科.文留地区石炭-二叠纪煤系生烃史及生烃潜力[J].石油与天然气地质,2004,25(4):400～401 [6] 李小弟.中国深部油气藏的形成与分布初探[J].石油勘探与开发,1994,21(1):34～39 [7] 解习农,刘小峰,胡祥云等.超压盆地中泥岩的流体压裂与幕式排烃[J].地质科技情报,1998,17(4):59～64 [8] 张金功,王定一,邸世祥等.异常超压带内开启泥岩裂隙的分布与油气初次运移[J].石油与天然气地质,1996,17(1):28～30 [9] 陈中红,查明,金强.东营凹陷超压系统的幕式排烃[J].石油勘探与开发,2003,24(1):33～36 [10] 陈阵岩,吴文柱.辽河盆地东部凹陷幕式成藏特征[J].石油与天然气地质,1996,17(1):28～30 [11] 于翠玲,曾溅辉.断层幕式活动期和间歇期流体运移与油气成藏特征[J].石油实验地质,2005,27(2):129～132 [12] 郭少斌.松辽盆地东岭地区幕式成藏分析[J].石油实验地质,2005,27(2):134～137 [13] 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 [14] 田克勤,李洪香.异常压力与深层油气藏——以黄骅坳陷为例[J].勘探家,1998,3(3):37～41 [15] 王子洪,苏惠,曾探等.东濮凹陷柳屯环洼深层油气藏成藏条件分析[J].天然气工业,2004,24(6):15～17 [16] 胡宗全,王传刚,张玉兰等.渤海湾盆地东濮凹陷上古生界潜山油气成藏条件评价[J].石油实验地质,2004,26(6):553～556 -
计量
- 文章访问数: 754
- HTML全文浏览量: 76
- PDF下载量: 361
- 被引次数: 0
下载:
苏公网安备32021102000780号