岩性油气藏 ›› 2011, Vol. 23 ›› Issue (4): 31–34.doi: 10.3969/j.issn.1673-8926.2011.04.006

• 油气地质 • 上一篇    下一篇

辽河冷家—雷家地区深层油气成藏条件研究

周琦1,刘旭龙2,聂爽3,焦建军4   

  1. 1.东北石油大学秦皇岛分校; 2.中国石油辽河油田分公司金马油田开发公司; 3.中国石油辽河油田分公司勘探开发研究院; 4.中国石油海洋工程有限公司
  • 出版日期:2011-08-20 发布日期:2011-08-20
  • 作者简介:周琦,1963 年生,男,副教授,主要从事石油地质学与沉积学的科研和教学工作。地址:(066004)河北省秦皇岛市海港区河北大 街西段550 号东北石油大学秦皇岛分校。E-mail:qizh_dq@yahoo.com.cn

Deep oil and gas accumulation conditions in Lengjia-Leijia area of Liaohe Basin

ZHOU Qi1,LIU Xulong2,NIE Shuang3,JIAO Jianjun4   

  1. (1. Qinhuangdao Branch, Northeast Petroleum University, Qinhuangdao 066004, China; 2. Jinma Oilfield Development Company, PetroChina Liaohe Oilfield Company, Panjin 124010, China; 3. Research Institute of Exploration and Development, PetroChina Liaohe Oilfield Company, Panjin 124010, China; 4. Ocean Engineering Company Limited, PetroChina, Panjin 124010, China
  • Online:2011-08-20 Published:2011-08-20

摘要:

冷家—雷家地区沙三段以下的深层勘探程度非常低。文章在精细地震构造解释和沉积学研究的 基础上,利用该区与邻区的现有资料,对深层油气藏的形成条件进行了分析和研究。结果表明,冷家—雷 家地区北东向的主干断层控制了区域构造与沉积格局,影响了油气的运移和聚集;深部层系的石油地质 条件十分优越。在陈家洼陷发育有沙四段和沙三段2 套优质烃源岩,有机质生烃强度大于500×104 t/km2, 为周边地区提供了丰富的油源;沙三下亚段、沙四段、中生界和太古宇都具有良好的储集岩;沙三中亚段 发育良好的区域盖层;深层的圈闭成因多样,油气运聚条件有利,勘探潜力巨大。但该区油气藏形成的影 响因素比较复杂,油气藏多为复合型,应该以潜山、岩性油气藏作为下一步的主要勘探目标。

关键词: 聚气能力, 散气能力, 配置类型, 天然气储量丰度, 徐深气田

Abstract:

The degree of exploration in deep zones belowthe third member of Shahejie Formation in Lengjia-Leijia area is low. Based on the fine seismic structural interpretation and sedimentology study, the available data fromthe study area and adjacent areas are used to analyze the formation conditions of the deep reservoirs. The result shows that the NE main fault controls the regional structure and depositional patterns in Lengjia-Leijia area, which affects the oil and gas migration and accumulation, and the oil geological condition in the deep strata is favorable. There developed two sets of high quality source rocks in the third and fourth members of Shahejie Formation in Chenjia sub-depression, with an organic hydrocarbon generation intensity greater than 500×104 t/km2, which provides abundant oil sources for the surrounding areas. Favorable reservoir rocks exist in the forth member and lower third member of Shahejie Formation, Mesozoic and Archean, and good regional seals developed well in the middle section of the third member of Shahejie Formation. There are various traps, favorable oil and gas migration and accumulation conditions and great exploration potential. However, the factors affecting the reservoir formation are complex and there exist compound reservoirs. It is suggested that the next promising exploration targets should be primarily centered on the hill and lithologic reservoirs.

Key words: gas accumulation ability, gas loss ability, matching type, gas reserves abundance, Xushen Gasfield

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