塔中Ⅰ号坡折带礁滩复合体大型油气田勘探理论与技术

摘要/Abstract

摘要： 在不断解决塔中Ⅰ号坡折带礁滩复合体勘探中遇到的诸多世界级难题的过程中,创新了塔中大漠海相碳酸盐岩油气勘探、开发配套技术系列：礁滩复合体地质综合建模技术,礁滩复合体优质储集层地震预测技术,礁滩复合体大型凝析气藏描述技术;礁滩复合体井位优选技术,超埋深、超高温、超高压油气层识别、保护与工艺改造技术。发展了礁滩复合体大型油气田成藏地质理论：剖析了台缘坡折带地质结构的分段性及其对礁滩复合体空间展布的控制,发现了井下奥陶纪最大型生物礁群,建立了大型礁滩复合体空间几何学地质模型,认识了多成因改良的礁滩复合体大型储集体,建立了礁滩复合体大型凝析气藏地质模型（群）;查明了迄今为止全球埋藏最深、时代最老的大型凝析气藏。目前已探明中国第一个奥陶系礁滩复合体大型凝析气田,3×108 t 油气规模基本落实,东部100×104 t 产能已初步建成。地质研究成果丰富和发展了我国台缘高能相带油气成藏理论,勘探开发实践发展了超深复杂油气藏的勘探开发技术,开创了在塔里木盆地奥陶系台地边缘寻找大型礁滩型油气藏的新领域,对塔里木盆地资源战略接替、产能接替具有重大意义。

关键词: 塔中Ⅰ号坡折带;, 奥陶系, 礁滩复合体, 油气成藏理论, 勘探配套技术

Abstract: To deal with the world-class difficult problems for reef-flat complex (RFC) oil-gas field in Tazhong No.1 slope break, the assorted series of technologies for exploration of the marine carbonate reservoirs are presented, including RFC geologic comprehension modeling technique; RFC quality reservoir seismic prediction technique; RFC large condensate gas pool characterization technique; RFC well location optimum selection technique; super-deep, extra-thermal/pressure reservoir identification, protection and modification technique. The hydrocarbon accumulation geologic theory of RFC large reservoirs is developed, such as the segmentation of platformmargin slope break geologic structure and its control on spatial distribution of RFC, the discovery of largest downhole biohermal group of the Ordovician, the development of large-scale spatial geometry geologic model, the proposition of multi-genetic reservoir improvement, and the development of RFC large condensate gas reservoir geologic models. The deepest and oldest giant condensate gas reservoir in the world has been found out: the RFC giant condensate gas field of the Ordovician is proved as the first one in China, which has reserves of 3×108 t and constructed productivity of 100×104 t in eastern Tarim basin. These exploration and development achievements have enriched the theory and technology for exploration of hydrocarbon accumulation in domestic platform margin energetic facies belts, initiating the novel domains searching for them, being of great significance to be strategically and productively a major explorative area for replacement of resources in Tarim basin.

Key words: Tazhong No.1 slope break, Ordovician, reef-flat complex, hydrocarbon accumulation theory, assorted exploration technology

中图分类号:

TE122.13

杨海军, 韩剑发, 孙崇浩, 张海祖. 塔中Ⅰ号坡折带礁滩复合体大型油气田勘探理论与技术[J]. 新疆石油地质, 2011, 32(3): 224-227.

YANG Hai-jun, HAN Jian-fa, SUN Chong-hao, ZHANG Hai-zu. Exploration of Reef-Flat Complex Giant Oil-Gas Field in Tazhong No.1 Slope Break in Tarim Basin: Theory and Technology[J]. Xinjiang Petroleum Geology, 2011, 32(3): 224-227.

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