塔中地区海相碳酸盐岩特大型油气田发现的关键技术

摘要/Abstract

摘要： 塔中隆起海相碳酸盐岩成藏地质异常复杂,地面条件极其艰苦,油气勘探开发面临世界级难题挑战。经过15 年艰苦攻关,发展了海相碳酸盐岩油气成藏理论：古隆起及斜坡控藏控储、多成因叠合复合缝洞系统地质模型、多充注点多期次大面积复式混源成藏理论;创新了海相油气勘探开发配套技术：大漠区超深层碳酸盐岩地震采集处理、缝洞量化雕刻、烃类检测、高产稳产井部署、超深高温碳酸盐岩钻井完井工艺、缝洞型碳酸盐岩储集层大型酸压改造等配套技术。运用上述理论及技术查明了塔中隆起奥陶系碳酸盐岩十亿吨级凝析气田,已探明中国奥陶系第一个礁滩复合体大型油气田,3×10⁸ t 油气规模基本落实,100×10⁴t 产能初步建成;发现了塔中北坡鹰山组层间岩溶大型凝析气田,7×10⁸ t 油气规模逐步明朗,400×10⁴ t 产能建设全面启动。创新成果丰富了海相油气地质理论,推动了关键技术的进步。

关键词: 塔里木盆地, 海相碳酸盐岩, 礁滩复合体, 油气成藏理论, 奥陶系, 塔中地区

Abstract: The marine carbonate reservoir in Tazhong uplift in Tarim basin is characterized by complicated geology and surface conditions, and its petroleum exploration faces challenges in world-level difficulties. After 15-year researches and practices, the hydrocarbon accumulation theories for marine carbonate reservoirs have been developed, such as the reserves- and hydrocarbon accumulation-controlling theory, the geologic model for multi-origin superimposed and complex fractured-vuggy system, the multi-charging location and multistage large-scale complex mixed sources accumulation theory. The matching technologies for marine petroleum exploration and development are created, including super-deep carbonate rock seismic gathering and processing in desert region, quantitative imagery of fractures and caves, hydrocarbon detection, allocation of high- and stable-production wells, drilling and completion technologies for super-deep and high-temperature carbonate reservoir, and large acid fracturing and alteration technology for fractured-vuggy carbonate reservoir. By means of these theories and technologies, a billion-ton-grade condensate gas field of the Ordovician carbonate reservoirs in Tazhong uplift has been found out, proving the first reef flat complex oil-gas field of Ordovician in China, from which 300 million tons of reserves have been proven basically, and one million-ton productivity has been built up comprehensively. Also, a large scale condensate gas field with interlayer karst of Yingshan formation in the northern slope of Tazhong uplift has been discovered, from which 700 million tons of reserves could be determined, and 4 million-ton productivity construction has been completely started up. These evolutional achievements enrich the marine hydrocarbon theory and promote the progress of the key technologies.

Key words: Tarim basin, marine carbonate rock, reef flat complex body, hydrocarbon accumulation theory, Ordovician, Tazhong area

中图分类号:

TE122.13

王招明, 于红枫, 吉云刚, 敬兵, 张海祖. 塔中地区海相碳酸盐岩特大型油气田发现的关键技术[J]. 新疆石油地质, 2011, 32(3): 218-223.

WANG Zhao-ming, YU Hong-feng, JI Yun-gang, JING Bing, ZHANG Hai-zu. Key Technologies for Discovery of Giant Marine Carbonate Oil-Gas Fields in Tazhong Area, Tarim Basin[J]. Xinjiang Petroleum Geology, 2011, 32(3): 218-223.

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