塔河气田纳米颗粒活性油堵水剂实验

doi:10.7657/XJPG20210214

新疆石油地质 ›› 2021, Vol. 42 ›› Issue (2): 218-223.doi: 10.7657/XJPG20210214

塔河气田纳米颗粒活性油堵水剂实验

杨利萍¹(), 葛际江²(), 孙翔宇²

1.中国石化 a.西北油田分公司石油工程技术研究院;b.碳酸盐岩缝洞型油藏提高采收率重点实验室,乌鲁木齐 830011
2.中国石油大学（华东）石油工程学院,山东青岛 266580

收稿日期:2020-04-14 修回日期:2020-06-17 出版日期:2021-04-01 发布日期:2021-04-02
通讯作者: 葛际江 E-mail:yanglip.xbsj@sinopec.com;gejijiang@163.com
作者简介:杨利萍（1987-）,女,河南濮阳人,工程师,油气田开发,（Tel）0991-3160958（E-mail） yanglip.xbsj@sinopec.com
基金资助:
国家自然科学基金(51574266)

Experiment on Nanoparticle Active Oil Water Plugging Agent in Tahe Gas Field

YANG Liping¹(), GE Jijiang²(), SUN Xiangyu²

1. Sinopec, a.Research Institute of Petroleum Engineering Technology, Northwest Oilfield Company; b.Key Laboratory of Enhanced Oil Recovery for Carbonate Fracture-Cavity Reservoirs, Urumqi, Xinjiang 830011, China
2. School of Petroleum Engineering, China University of Petroleum, Qingdao, Shandong 266580, China

Received:2020-04-14 Revised:2020-06-17 Online:2021-04-01 Published:2021-04-02
Contact: GE Jijiang E-mail:yanglip.xbsj@sinopec.com;gejijiang@163.com

摘要/Abstract

摘要：

塔河气田前期采用冻胶堵水方法,对直井效果显著,但对水平井无法达到长期控水要求。针对水平井堵水特点,研制了一种纳米颗粒活性油堵水剂,堵水剂由纳米颗粒、乳化剂咪唑啉和柴油组成。该堵水剂易于注入,受地层水微剪切力,可生成油包水乳状液,在高温和纳米颗粒的作用下黏度增大。乳状液主要通过贾敏效应控制地层水进入高渗通道,从而降低产水率。在低渗产气通道内,主要是体系中的纳米颗粒通过改变储集层润湿性,解除通道水锁。乳状液会被凝析油稀释,因此不会造成气道堵塞。实验室评价表明,该体系具有很好的选择性控水能力,最大残余阻力系数为27,耐冲刷性强,可降低气井产水率并恢复产气量。

关键词: 塔河气田, 凝析气藏, 水平井, 水锁, 乳状液, 纳米颗粒, 堵水剂, 润湿性, 产水率

Abstract:

The gel was used in Tahe gas field to plug water in the early production stage and a significant effect was obtained in vertical wells, but it could not meet long-term water control requirements for horizontal wells. Aiming at the water plugging characteristics in horizontal wells, a nanoparticle active-oil water plugging agent was developed, which was composed of nanoparticles, emulsifier imidazoline and diesel. The water plugging agent is easy to be injected, and can form a kind of water-in-oil emulsion due to micro shear force of the formation water. The viscosity of the water-in-oil emulsion will increase under the action of high temperature and nanoparticles. The Jamin effect of the emulsion prevents the formation water from entering highly permeable channels, thereby reducing the water production rate. In the low-permeability channels, the nanoparticles in the system change the wettability of the reservoir to release the water lock of the channels. The emulsion will be diluted by condensate oil, so it will not block the gas channels. Laboratory evaluations show that the system has good selective water control capabilities with strong erosion resistance and a maximum residual resistance coefficient of 27, which can reduce the water production rate and restore gas production in gas wells.

Key words: Tahe gas field, condensate gas reservoir, horizontal well, water lock, emulsion, nanoparticle, water plugging agent, wettability, water production rate

中图分类号:

TE37

杨利萍, 葛际江, 孙翔宇. 塔河气田纳米颗粒活性油堵水剂实验[J]. 新疆石油地质, 2021, 42(2): 218-223.

YANG Liping, GE Jijiang, SUN Xiangyu. Experiment on Nanoparticle Active Oil Water Plugging Agent in Tahe Gas Field[J]. Xinjiang Petroleum Geology, 2021, 42(2): 218-223.

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塔河气田纳米颗粒活性油堵水剂实验

Experiment on Nanoparticle Active Oil Water Plugging Agent in Tahe Gas Field

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