渤海湾盆地潍北凹陷致密气成藏过程分析

孙耀庭

doi:10.11781/sysydz201403325

渤海湾盆地潍北凹陷致密气成藏过程分析

doi: 10.11781/sysydz201403325

孙耀庭

中国石化胜利油田分公司地质科学研究院, 山东东营 257061

基金项目: 国家重点基础研究发展计划项目（2008CB209102）和中国石化重点攻关项目“潍北凹陷油气勘探潜力及勘探方向”（P11067）共同资助。

详细信息

作者简介:
孙耀庭（1978—）,男,工程师,从事石油地质与储层地质学研究。E-mail: syt1979@sina.com。

中图分类号: TE122.3
计量
- 文章访问数: 832
- HTML全文浏览量: 67
- PDF下载量: 681
- 被引次数: 0
出版历程
- 收稿日期: 2013-09-11
- 修回日期: 2014-03-11
- 刊出日期: 2014-05-28

Reservoir-forming analysis of tight gas in Weibei Sag, Bohai Bay Basin

Sun Yaoting

Research Institute of Geological Sciences of SINOPEC Shengli Oilfield Company, Dongying, Shandong 257061, China

摘要

摘要: 潍北凹陷北部洼陷带具有形成致密气藏的良好地质条件，在孔二段形成自生自储自盖组合，埋深大于3 500 m均为致密气藏发育区。通过分析孔隙尺度下的天然气运移模式、模拟实验确定含气饱和度影响因素，建立了渗透率与最终含气饱和度相关关系，相关系数为0.904，实验结果表明充注时间较早，气藏形成期存在异常高压。流体包裹体均一温度表明深层致密气藏经历了2期充注，第一期发生在沙河街组沉积早期（52~50.5 Ma），第二期发生在沙河街构造运动之前（43.5~36 Ma），以第二期充注为主。沙河街构造运动造成盆地泻压，致密气藏被破坏。新近系的沉积使储层进一步致密化，有利于孔店组致密气的保存。因此，潍北凹陷深层孔店组致密气为残留气藏，仍有一定的勘探前景。
- 含气饱和度 /
- 致密气 /
- 渗透率 /
- 孔二段 /
- 潍北凹陷 /
- 渤海湾盆地
Abstract: There were good geological conditions for tight gas reservoirs in the northern subsag of the Weibei Sag, forming the combination of self-generation, self-storage and self-cover in the 2nd member of the Kongdian Formation. Tight gas reservoirs generated in the area deeper than 3 500 m. The natural gas migration patterns under different porosity conditions were analyzed, and the influencing factors for gas saturation were studied with experiments. The relationship between permeability and final gas saturation was defined, and the coefficient was 0.904. Experimental results showed that gas charged early and abnormal high pressure existed during gas accumulation stage. The homogenization temperature of fluid inclusions showed that tight gas reservoirs experienced 2 charging periods. The 1st period was the early Shahejie period (52-50.5 Ma) and the 2nd one was before the Shahejie structural movement (43.5-36 Ma), among which the 2nd period played a more important role. The Shahejie structural movement caused pressure reducing and tight gas reservoirs were destroyed. The deposition of Neogene made reservoirs further compact, which was favorable for tight gas reservoir preservation in the Kongdian Formation. The tight gas reservoirs of the Kongdian Formation in the Weibei Sag were residual gas reservoirs, and still had good exploration prospects.
- gas saturation /
- tight gas /
- permeability /
- 2nd member of Kongdian Formation /
- Weibei Sag /
- Bohai Bay Basin

HTML全文

参考文献(19)

[1]	杨涛,张国生,梁坤,等.全球致密气勘探开发进展及中国发展趋势预测[J].中国工程科学,2012,14(6):64-68,76. Yang Tao,Zhang Guosheng,Liang Kun,et al.The exploration of global tight sandstone gas and forecast of the development tendency in China[J].Engineering Sciences,2012,14(6):64-68,76.
[2]	邱中建,邓松涛.中国非常规天然气的战略地位[J].天然气工业,2012,32(1):1-5. Qiu Zhongjian,Deng Songtao.Strategic position of unconventional natural gas resources in China[J].Natural Gas Industry,2012,32(1):1-5.
[3]	程有义,李晓清,汪泽成,等.潍北拉分盆地形成演化及其对成油气条件的控制[J].石油勘探与开发,2004,31(6):32-35. Cheng Youyi,Li Xiaoqing,Wang Zecheng,et al.Tectonic evolution and its controlling on petroleum generation in Weibei Basin[J].Petroleum Exploration and Development,2004,31(6):32-35.
[4]	王文林,杨永红.潍北凹陷孔店组沉积相特征研究[J].特种油气藏,2003,10(2):23-26. Wang Wenlin,Yang Yonghong.Study on sedimentary facies in Kongdian formation of Weibei depression[J].Special Oil and Gas Reservoirs,2003,10(2):23-26.
[5]	任瑞军,吴蔚,苗永康.论深层气与深盆气:以潍北凹陷为例[J].油气地质与采收率,2006,13(4):39-44. Ren Ruijun,Wu Wei,Miao Yongkang.On deep gas and deep basin gas in Weibei Depression[J].Petroleum Geology and Recovery Efficiency,2006,13(4):39-44.
[6]	沈朴,金强,张玉明,等.潍北凹陷孔店组天然气成因类型及分布规律[J].地球科学与环境学报,2010,32(3):252-256. Shen Pu,Jin Qiang,Zhang Yuming,et al.Genetic type and distribution rule of natural gas of Kongdian formation in Weibei sag[J].Journal of Earth Sciences and Environment,2010,32(3):252-256.
[7]	程启贵,雷启鸿,熊维亮.致密油藏有效驱替压力系统建立理论与技术[J].天然气地球科学,2012,23(3):570-576. Cheng Qigui,Lei Qihong,Xiong Weiliang.Theory and technology of effective-displacement-pressure system of tight oil reservoir[J].Natural Gas Geoscience,2012,23(3):570-576.
[8]	何贤科,陈程.低渗透油田建立有效驱替压力系统研究[J].特种油气藏,2006,13(2):56-57,69. He Xianke,Chen Cheng.Establish effective displacement pre-ssure system in low permeability oilfield[J].Special Oil and Gas Reservoirs,2006,13(2):56-57,69.
[9]	吕修祥,金之钧,贾红育,等.塔里木盆地克拉2气田白垩系砂岩含气饱和度模拟实验[J].西安石油大学学报,2004,19(4):66-68. Lü Xiuxiang,Jin Zhijun,Jia Hongyu,et al.Simulation experiment of gas saturation of Cretaceous sandstone in Kela2 gas field,Talimu Basin[J].Journal of Xi'an Shiyou University,2004,19(4):66-68.
[10]	姜林,柳少波,洪峰,等.致密砂岩气藏含气饱和度影响因素分析[J].西南石油大学学报,2011,33(6):121-125. Jiang Lin,Liu Shaobo,Hong Feng,et al.Analysis of controlling factors on gas saturation in tight sandstone reservoir[J].Journal of Southwest Petroleum University,2011,33(6):121-125.
[11]	邢恩袁,庞雄奇,肖中尧,等.利用颗粒荧光定量分析技术研究塔里木盆地库车坳陷大北1气藏充注史[J].石油实验地质,2012,34(4):432-437. Xing Enyuan,Pang Xiongqi,Xiao Zhongyao,et al.Application of quantitative grain fluorescence techniques in analysis of hydrocarbon charge history in Dabei 1 gas reservoir,Kuqa Depre-ssion,Tarim Basin[J].Petroleum Geology & Experiment,2012,34(4):432-437.
[12]	宫秀梅,曾溅辉,邱楠生.潍北凹陷深层致密砂岩气成藏特征[J].天然气工业,2005,25(6):7-10. Gong Xiumei,Zeng Jianhui,Qiu Nansheng.Characteristics of deep tight sandstone reservoir formation in Weibei Sag[J].Natural Gas Industry,2005,25(6):7-10.
[13]	张金亮,张金功.深盆气藏的主要特征及形成机制[J].西安石油学院学报,2001,16(1):1-7,22. Zhang Jinliang,Zhang Jingong.Basic characteristics of deep basin gas traps[J].Journal of Xi'an Petroleum Institute,2001,16(1):1-7,22.
[14]	王鹏,李瑞,刘叶.川西坳陷陆相天然气勘探新思考[J].石油实验地质,2012,34(4):406-411. Wang Peng,Li Rui,Liu Ye.New thoughts of continental gas exploration in Western Sichuan Depression[J].Petroleum Geology & Experiment,2012,34(4):406-411.
[15]	刘吉余,马志欣,孙淑艳.致密含气砂岩研究现状及发展展望[J].天然气地球科学,2008,19(3):316-319. Liu Jiyu,Ma Zhixin,Sun Shuyan.Present research situation and prospects of tight gas sands[J].Natural Gas Geoscience,2008,19(3):316-319.
[16]	杨华,付金华,刘新社,等.鄂尔多斯盆地上古生界致密气成藏条件与勘探开发[J].石油勘探与开发,2012,39(3):295-303. Yang Hua,Fu Jinhua,Liu Xinshe,et al.Accumulation conditions and exploration and development of tight gas in the Upper Paleozoic of the Ordos Basin[J].Petroleum Exploration and Development,2012,39(3):295-303.
[17]	姜福杰,庞雄奇,姜振学,等.致密砂岩气藏成藏过程的物理模拟实验[J].地质论评,2007,53(6):844-849. Jiang Fujie,Pang Xiongqi,Jiang Zhenxue,et al.Physical simulation experiment of gas charging in tight sandstone[J].Geological Review,2007,53(6):844-849.
[18]	戴金星,宋岩,张厚福.中国大中型气田形成的主要控制因素[J].中国科学:D辑:地球科学,1996,26(6):481-487. Dai Jinxing,Song Yan,Zhang Houfu.The main controlling factor in China's large and medium gas fields[J].Science in China:D series:Earth Sciences,1996,26(6):481-487.
[19]	袁政文.煤层气藏类型及富集高产因素[J].断块油气田,1997,4(2):9-12. Yuan Zhengwen.On types of coalbed methane reservoirs and the factors of rich and high output[J].Fault-block Oil and Gas Field,1997,4(2):9-12.