Study on plugging effect and reservoir adaptability of inorganic geopolymer gel

Ge Song; Lu Xiangguo; Liu Jinxiang; Meng Xianghai; Zhang Yunbao

doi:10.13809/j.cnki.cn32-1825/te.2018.03.011

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Study on plugging effect and reservoir adaptability of inorganic geopolymer gel

更新时间：2025-12-05

- Study on plugging effect and reservoir adaptability of inorganic geopolymer gel
- Petroleum Reservoir Evaluation and Development Vol. 8, Issue 3, Pages: 51-54(2018)
- 作者机构：
  
  1. 东北石油大学提高油气采收率教育部重点实验室,黑龙江,大庆,163318
  2. 中海石油（中国）有限公司天津分公司研究院,天津塘沽,300450
- 作者简介：
- 基金信息：
- DOI：10.13809/j.cnki.cn32-1825/te.2018.03.011
  CLC： E357
- Published：2018
- 稿件说明：
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Ge Song, Lu Xiangguo, Liu Jinxiang, et al. Study on plugging effect and reservoir adaptability of inorganic geopolymer gel[J]. Petroleum Reservoir Evaluation and Development, 2018, 8(3): 51-54.
DOI：

Ge Song, Lu Xiangguo, Liu Jinxiang, et al. Study on plugging effect and reservoir adaptability of inorganic geopolymer gel[J]. Petroleum Reservoir Evaluation and Development, 2018, 8(3): 51-54. DOI： 10.13809/j.cnki.cn32-1825/te.2018.03.011.

摘要

渤海主要油藏具有储层非均质性严重、单井注入量大和岩石胶结强度低等特点

长期注水和注聚已形成水流优势通道和由此引起的注入水低效和无效循环问题。通过静态成胶和岩心驱替实验

评价了新型无机地质聚合物凝胶封堵剂固化时间、封堵效果和储层适应性。结果表明

无机地质聚合物凝胶固化时间易于调节

固化时间在20 ~ 480 h可调。在填砂管上开展封堵实验

封堵率可达99 %以上。采用填砂管与人造均质岩心的双管并联模型进行封堵实验

封堵后高渗透层封堵率达到98 %以上

低渗透层渗透率几乎未发生变化。由此可见

无机地质聚合物凝胶具有“堵大不堵小”特性

适宜于储层内特高渗透条带或大孔道封堵。

Abstract

The main reservoirs in Bohai have the characteristics of serious reservoir heterogeneity

large injection rate of single well and low cementation strength of rock. Due to the long-term water injection and polymer flooding

the rock structure has been destroyed and the dominant channel of water flow has been formed. This problem has caused the inefficient and ineffective circulation of the injected water. In this paper

we evaluated the gelling time

the plugging effect and the reservoir adaptability of the new inorganic geopolymer gel plugging agent by the static gelling test and the core displacement test. The results show that it is easy to adjust the curing time of the inorganic geopolymer gel. The curing time is adjustable between 20 ~ 480 hours. Based on the plugging experiments of the sandpack pipe

the plugging rate of the inorganic geopolymer gel was over 99 %. While the plugging experiment of a double pipe parallel model composed of the sandpack pipe and artificial homogeneous core bring us a plugging rate of high permeability layer more than 98 %. The permeability of the low permeability layer is almost unchanged. Therefore

the inorganic geological polymer gel has the advantages of plugging the large channel but not for the small pores. It is suitable for the plugging of the zones with ultra high permeability or the large channels in the reservoir.

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