插层凝胶颗粒调驱技术在哈得油田的应用

doi:10.7657/XJPG20200215

摘要/Abstract

摘要：

为了提高哈得油田高温高盐油藏水驱效果,开展了插层凝胶颗粒调驱技术研究。通过配伍性实验、耐温抗盐实验和岩心驱替实验,对插层凝胶颗粒进行性能评价,并进行现场应用。实验结果表明,插层凝胶颗粒均匀分散在溶液中,与地层水的配伍性良好;在哈得油田地层水条件下,插层凝胶颗粒老化30 d,吸水膨胀倍数超过5.00倍,具有较好的耐温抗盐和吸水膨胀性能;向渗透率相近岩心中注入不同粒径的插层凝胶颗粒,最大封堵率为99.79%,说明插层凝胶颗粒具有较强的封堵性能。在哈得油田东河塘组砂岩油藏,利用插层凝胶颗粒进行深部调驱现场应用,截止到2018年10月底,调驱井组平均日产油量由104.07 t上升到121.52 t,含水率由83.95%降至74.40%,累计增油量1.7×10 ⁴ t,取得了较好的开发效果。

关键词: 哈得油田, 古生界, 东河塘组, 高温高盐, 插层凝胶颗粒, 深部调驱, 现场应用

Abstract:

In order to improve the water flooding effect in high-temperature high-salinity reservoirs in the Hade oilfield, a research on the intercalative gel-particle profile control technology was performed. The performance evaluation and field application of the technology were carried out based on compatibility experiments, temperature resistance and salt tolerance tests and core flooding experiments. The results indicated that the intercalative gel particles, which could be uniformly dispersed in the solution and had a good compatibility with formation water. Under the condition of formation water in the Hade oilfield, the water absorption expansion rate became 5.00 times larger after the intercalative gel particles were aged for 30 days, indicating that the system had better performance in temperature resistance, salt tolerance and imbibition. In the process of injecting intercalative gel particles with different particle sizes into the cores with similar permeabilities, the maximum blocking rate reached 99.79%, indicating that the intercalative gel particles had good blocking performance. The intercalative gel particles were applied in the deep profile control in the Donghetang sandstone reservoir of Hade oilfield. By the end of October, 2018, the average daily oil production of the well groups with deep profile control increased from 104.07 t to 121.52 t, the water cut decreased from 83.95% to 74.40%, and the cumulative incremental oil production was 1.7×10 ⁴ t. Good development effects have been gained.

Key words: Hade oilfield, Paleozoic, Donghetang formation, high temperature and high salinity, intercalative gel particle, deep profile control, field application

中图分类号:

TE357.43

谭良柏, 昌伦杰, 陈洪, 杨之照, 贺湘辉, 刘毅石, 李红波. 插层凝胶颗粒调驱技术在哈得油田的应用[J]. 新疆石油地质, 2020, 41(2): 228-231.

TAN Liangbo, CHANG Lunjie, CHEN Hong, YANG Zhizhao, HE Xianghui, LIU Yishi, LI Hongbo. Application of Intercalative Gel-Particle Profile Control Technology in Hade Oilfield[J]. Xinjiang Petroleum Geology, 2020, 41(2): 228-231.

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