碳酸盐岩裂缝型储集层全直径岩心水侵规律实验

doi:10.7657/XJPG20230413

新疆石油地质 ›› 2023, Vol. 44 ›› Issue (4): 479-484.doi: 10.7657/XJPG20230413

碳酸盐岩裂缝型储集层全直径岩心水侵规律实验

胡勇¹(), 乐平¹^,², 郭春秋¹(), 陈鹏羽¹, 肖云³, 屈思敏², 王鑫¹

1.中国石油勘探开发研究院，北京 100083
2.西南石油大学油气藏地质及开发工程国家重点实验室，成都 610500
3.中国石油塔里木油田分公司东河采油气管理区，新疆库尔勒 841000

收稿日期:2022-12-08 修回日期:2023-01-03 出版日期:2023-08-01 发布日期:2023-08-01
通讯作者: 郭春秋（1972-），男，湖北武穴人，教授级高级工程师，博士，油藏工程，（Tel）010-83597830（E-mail）guochq@petrochina.com.cn
作者简介:胡勇（1998-），男，新疆伊宁人，硕士，油气田开发，（Tel）010-83595323（E-mail）huyong123@petrochina.com.cn
基金资助:
中国石油前瞻性基础性技术攻关项目(2021DJ3301)

Experimental Study on Water Invasion in Full-Diameter Cores From Fractured Carbonate Reservoirs

HU Yong¹(), LE Ping¹^,², GUO Chunqiu¹(), CHEN Pengyu¹, XIAO Yun³, QU Simin², WANG Xin¹

1. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China
2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
3. Donghe Oil and Gas Production Management Area, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China

Received:2022-12-08 Revised:2023-01-03 Online:2023-08-01 Published:2023-08-01

摘要/Abstract

摘要：

阿姆河右岸海相碳酸盐岩气藏断层及裂缝发育，局部水体能量活跃，开发效果受水侵影响显著。通过高温高压复杂缝洞储集层全直径岩心驱替实验，分析裂缝渗透率、裂缝贯穿程度和水体倍数对气藏水侵的影响，结合水气比动态变化特征，研究不同裂缝岩心的水侵规律。结果表明，裂缝贯穿程度越高，裂缝渗透率越大，水体倍数越高，则对应水侵模式中水气比曲线的斜率越大，说明水侵、水窜越严重，而裂缝未贯穿区域对暴性水淹能起到较好的抑制作用。在上述认识基础上，通过水侵模式分析诊断曲线，进一步分析了不同水侵模式的特征，优化了研究区气藏水侵诊断的指数图版。

关键词: 土库曼斯坦, 阿姆河盆地, 碳酸盐岩, 裂缝型储集层, 边底水, 物理模拟, 水侵规律, 诊断曲线

Abstract:

Faults and fractures are developed in the marine carbonate gas reservoirs on the right bank of the Amu Darya basin. Water is active locally, which leads to severe water invasion during development. Through high-temperature and high-pressure displacement experiments on full-diameter core samples from complex fractured reservoirs, the influences of fracture permeability, fracture penetration degree and water volume multiple on water invasion in gas reservoirs were analyzed. The water invasion patterns in different fractured core samples were investigated by considering the dynamic changes in the water-gas ratio (WGR). The results indicate that as the fracture penetration degree, fracture permeability, and water volume multiple increase, the slope of the WGR curve under the corresponding water invasion pattern increases, suggesting more severe water invasion and channeling. The areas with incomplete fracture penetration can effectively restrain any sudden water invasion. Accordingly, the characteristics of water invasion patterns were further analyzed by using the water invasion diagnosis curves, and the index chart for diagnosis of water invasion in the study area was optimized.

Key words: Turkmenistan, Amu Darya basin, carbonate rock, fractured reservoir, edge/bottom water, physical simulation, water invasion, diagnosis curve

中图分类号:

TE371

胡勇, 乐平, 郭春秋, 陈鹏羽, 肖云, 屈思敏, 王鑫. 碳酸盐岩裂缝型储集层全直径岩心水侵规律实验[J]. 新疆石油地质, 2023, 44(4): 479-484.

HU Yong, LE Ping, GUO Chunqiu, CHEN Pengyu, XIAO Yun, QU Simin, WANG Xin. Experimental Study on Water Invasion in Full-Diameter Cores From Fractured Carbonate Reservoirs[J]. Xinjiang Petroleum Geology, 2023, 44(4): 479-484.

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碳酸盐岩裂缝型储集层全直径岩心水侵规律实验

Experimental Study on Water Invasion in Full-Diameter Cores From Fractured Carbonate Reservoirs

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