缝洞型碳酸盐岩凝析气藏注水开发物理模拟研究

彭松; 郭平

doi:10.11781/sysydz201405645

缝洞型碳酸盐岩凝析气藏注水开发物理模拟研究

doi: 10.11781/sysydz201405645

彭松,
郭平^,

“油气藏地质及开发工程”国家重点实验室, 西南石油大学, 成都 610500

基金项目: 高校博士点基金“高温高压多组分凝析气非平衡相态理论模型研究”(20115121110002)资助。

详细信息

作者简介:
彭松(1986-)，男，博士生，从事油气藏工程研究。E-mail：winter_melon@126.com。

通讯作者:
郭平(1965-)，男，教授，从事油气藏工程、油气相态、气田开发研究。E-mail：guopingswpi@vip.sina.com

中图分类号: TE372
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出版历程
- 收稿日期: 2013-05-07
- 修回日期: 2014-07-20
- 刊出日期: 2014-09-28

Physical simulation of exploiting fractured-vuggy carbonate gas condensate reservoirs by water injection

Peng Song,
Guo Ping^,

State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China

摘要

摘要: 与一般砂岩凝析气藏不同，缝洞型碳酸盐岩凝析气藏发育有大小不同、形状各异的裂缝和孔洞，使其具有非均质性强，流体流动规律复杂等特征。如何提高该类气藏的采收率是值得研究的问题。技术成熟的注水技术具有开发成本低、水气流度比好、水驱波及效率高等优点。以塔中86井为例，采用露头碳酸盐岩经过人工技术制成全直径缝洞型岩心，在原始地层条件下(140.6 ℃，58 MPa)完成注水开发物理模拟实验。结果表明，采用注水保压方式开发高含凝析油的缝洞型碳酸盐岩凝析气藏效果较好；凝析油的采收率受缝洞连通方式、缝洞充填与否、压力保持水平等因素的影响。
- 缝洞型碳酸盐岩 /
- 凝析气藏 /
- 高含凝析油 /
- 注水 /
- 高温高压 /
- 全直径岩心 /
- 物理模拟
Abstract: Due to the development of fissures and cavities with different sizes and shapes, fractured-vuggy carbonate gas condensate reservoirs are distinct from the general sand gas condensate reservoirs, hence are characterized by strong heterogeneity and complicated flow regularity. To these reservoirs, it is a question of concern that which developing strategy is benefit to maximize the recoveries of oil and gas. As a mature technology, water injection possesses advantages such as lower cost, better gas-water mobility ratio, and higher sweep efficiency. Taking well TZ86 as a target, we accomplished a physical simulation research under initial reservoir conditions (140.6 ℃,58 MPa) by using an artificial fractured-vuggy full-diameter core which was made from an outcrop of carbonate rock. The experimental results show that the effectiveness of exploiting fractured-vuggy carbonate gas condensate reservoirs by water injection is significant. The factors such as the connectivity pattern between fissure and cavern, the pressure maintenance level of water injection, and cavern whether or not filling have effects on the recovery of condensate oil.
- fractured-vuggy carbonate rock /
- gas condensate reservoir /
- high content of condensate oil /
- water injection /
- high temperature and high pressure /
- full-diameter core /
- physical simulation

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