黄骅坳陷大港探区高含H2S天然气地球化学特征及成因

doi:10.7623/syxb2016S2004

石油学报 ›› 2016, Vol. 37 ›› Issue (S2): 31-38.DOI: 10.7623/syxb2016S2004

黄骅坳陷大港探区高含H₂S天然气地球化学特征及成因

国建英^1,2, 付立新³, 肖鑫⁴, 王东良^1,2, 李剑^1,2, 张璐^1,2, 肖敦清³, 谢增业^1,2, 柳晓萱⁵, 王金友⁶

1. 中国石油天然气集团公司天然气成藏与开发重点实验室河北廊坊 065007;
2. 中国石油勘探开发研究院廊坊分院河北廊坊 065007;
3. 中国石油大港油田公司勘探开发研究院天津 300280;
4. 西安石油大学地球科学与工程学院陕西西安 710065;
5. 北京大学地球与空间科学学院北京 100871;
6. 中国石油渤海钻探工程公司第二录井分公司河北廊坊 065007

收稿日期:2016-07-11 修回日期:2016-11-30 出版日期:2016-12-30 发布日期:2017-03-08
通讯作者: 国建英,男,1971年12月生,1994年获江汉石油学院学士学位,2009年获中国矿业大学(北京)博士学位,现为中国石油勘探开发研究院廊坊分院高级工程师,主要从事石油、天然气地球化学及成藏的研究工作。Email:gjy_17711224@petrochina.com.cn
作者简介:国建英,男,1971年12月生,1994年获江汉石油学院学士学位,2009年获中国矿业大学(北京)博士学位,现为中国石油勘探开发研究院廊坊分院高级工程师,主要从事石油、天然气地球化学及成藏的研究工作。Email:gjy_17711224@petrochina.com.cn
基金资助:
国家重大科技专项（2016ZX05007）及中国石油天然气股份有限公司科学研究与技术开发项目（2016B-0602、2014E-06-02）资助。

Geochemical characteristics and genesis of high-H₂S natural gas in the Dagang exploration area,Huanghua depression

Guo Jianying^1,2, Fu Lixin³, Xiao Xin⁴, Wang Dongliang^1,2, Li Jian^1,2, Zhang Lu^1,2, Xiao Dunqing³, Xie Zengye^1,2, Liu Xiaoxuan⁵, Wang Jinyou⁶

1. CNPC Key Laboratory for Natural Gas Accumulation and Development, Hebei Langfang 065007, China;
2. Langfang Branch, PetroChina Research Institute of Petroleum Exploration & Development, Hebei Langfang 065007, China;
3. Research Institute of Exploration and Development, PetroChina Dagang Oilfield Company, Tianjin 300280, China;
4. School of Earth Sciences and Engineering, Xi'an Shiyou University, Shaanxi Xi'an 710065, China;
5. School of Earth and Space Science, Peking University, Beijing 100871, China;
6. Branch of the Second Mudioging, CNPC Bohai Drilling Engineering Company Limited, Hebei Langfang 065007, China

Received:2016-07-11 Revised:2016-11-30 Online:2016-12-30 Published:2017-03-08

摘要/Abstract

摘要：

渤海湾盆地继冀中坳陷晋县凹陷发现H₂S气藏后，在黄骅坳陷大港探区又发现了高含H₂S气藏，在煤成气气藏中发现如此高含量的H₂S和CO₂在国内还属首次，酸性气体的成因也引起国内学者的关注。通过气、岩有机地球化学参数的对比，认为该区高含量H₂S归因于TSR反应，揭示了煤成气区同样可以发生TSR，丰富了过去只在海相原油裂解气区发生TSR的地质认识；高含量有机或有机-无机混合的CO₂除了与碳酸盐岩的热变质、TSR有关外，与烃类气体属于煤成气有很大的关系。黄骅坳陷大港探区H₂S的富集受储层中的硫源丰富程度和地层温度的控制，高含H₂S天然气主要分布在石炭系-二叠系覆盖且埋深较大的中南部地区，如埕海、泊古-乌马营-王官屯等地区。研究成果对该区高含酸性天然气形成机制以及天然气下一步勘探部署工作都具有积极指导意义。

关键词: 硫化氢, TSR, 天然气成因, 大港探区, 黄骅坳陷

Abstract:

After the discovery of H₂S gas reservoir in Jinxian Depression, Jizhong Sag, Bohai Bay Basin, high-H₂S gas reservoir was discovered in the Dagang exploration area, Huanghua sag. Such high H₂S and CO₂ contents have been first found in coal-formed gas reservoir in China, and the genesis of acid gas has attracted attentions of domestic scholars. Through comparing the organic geochemistry parameters of gas and rock, it is believed that high content of H₂S in the area is the product of thermochemical sulphate reduction(TSR), which reveals that TSR can also occur in the coal-formed gas area and enriches the previous geological recognition that TSR only occurs in the marine crude oil cracking gas area; high content of organic-inorganic CO₂ is related to thermal metamorphism of carbonate rock and TSR, and is also strongly associated with coal-formed hydrocarbon gas. The enrichment of H₂S in the Dagang exploration area, Huanghua Sag is controlled by formation temperature and the enrichment degree of sulfur source in reservoir. High-H₂S natural gas is mainly distributed in the south central region covered by Carboniferous-Permian strata with a relatively great burial depth, such as Chenghai, Bogu-Wumaying-Wangguantun, and etc. The research results have a positive guiding significance to discover the formation mechanism of high acidic natural gas and carry out the next exploration deployment of natural gas.

Key words: Hydrogen sulfide, thermochemical sulphate reduction, Genesis of natural gas, Dagang exploration area, Huanghua depression

中图分类号:

TE122.14

国建英, 付立新, 肖鑫, 王东良, 李剑, 张璐, 肖敦清, 谢增业, 柳晓萱, 王金友. 黄骅坳陷大港探区高含H₂S天然气地球化学特征及成因[J]. 石油学报, 2016, 37(S2): 31-38.

Guo Jianying, Fu Lixin, Xiao Xin, Wang Dongliang, Li Jian, Zhang Lu, Xiao Dunqing, Xie Zengye, Liu Xiaoxuan, Wang Jinyou. Geochemical characteristics and genesis of high-H₂S natural gas in the Dagang exploration area,Huanghua depression[J]. Acta Petrolei Sinica, 2016, 37(S2): 31-38.

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黄骅坳陷大港探区高含H₂S天然气地球化学特征及成因

Geochemical characteristics and genesis of high-H₂S natural gas in the Dagang exploration area,Huanghua depression

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