高探1井出水来源分析及稳产制度

doi:10.7657/XJPG20210112

摘要/Abstract

摘要：

高探1井位于准噶尔盆地南缘冲断带四棵树凹陷,创下中国陆上碎屑岩油藏单井日产油量超千吨的高产纪录。在进行第二次系统试产求取极限产量期间,含水率由0升至最高18.17%,高探1井区仅高探1井投产,无出油段取心、产液剖面、长期流压监测等资料,对出水来源及机理认识不清。通过动、静态资料分析,利用井筒模拟、动态分析、油藏数值模拟等技术,开展测井解释及出水诊断,进一步明确出水特征、出水来源及出水机理,制定长期高产稳产的合理工作制度。通过现场调控,实现了高探1井含水稳定和持续稳产,可有效指导后续投产井的试油、试采及动态资料录取,有力推动准噶尔盆地南缘勘探开发进程。

关键词: 准噶尔盆地, 四棵树凹陷, 高探1井, 碎屑岩储集层, 出水来源, 出水机理, 油藏数值模拟, 工作制度

Abstract:

Well Gaotan-1, which is located in the Sikeshu sag in the southern margin of the Junggar basin, hit the high-yield record of more than one thousand tons of oil per day per well from onshore clastic reservoirs in China. During the second production test for getting the highest production, the water cut from the well increased from 0% to 18.17%. At present, only Well Gaotan-1 was put into production nearby. Without cores taken from the pay zone, or liquid production performance and long-term flowing pressure data, it is difficult to understand the produced water source and its mechanism. To identify the water source, water breakthrough features and mechanism, and to design a reasonable working system for long-term high and stable production, static and dynamic data were analyzed and wellbore simulation, dynamic analysis and reservoir numerical simulation were carried out to help logging interpretation and water diagnosis. Finally, Well Gaotan-1 realized stable water cut and sustainable stable production in combination with fine field adjustment. The findings are references to guiding formation test, production test and collection of dynamic data for other production wells, and help promote the process of exploration and development in the southern margin of the Junggar basin.

Key words: Junggar basin, Sikeshu sag, Well Gaotan-1, clastic reservoir, produced water source, water breakthourgh mechanism, reservoir

中图分类号:

TE343

巴忠臣, 邱子刚, 张宗斌, 陈新宇, 孔垂显, 秦军. 高探1井出水来源分析及稳产制度[J]. 新疆石油地质, 2021, 42(1): 88-93.

BA Zhongchen, QIU Zigang, ZHANG Zongbin, CHEN Xinyu, KONG Chuixian, QIN Jun. Analysis on Produced Water Source in Well Gaotan-1 and How to Keep Stable Production[J]. Xinjiang Petroleum Geology, 2021, 42(1): 88-93.

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