西南石油大学学报(自然科学版) ›› 2013, Vol. 35 ›› Issue (2): 146-151.

• 石油与天然气工程 • 上一篇    下一篇

新型交联酸液体系的研制及其应用

温长云1,王磊2,马收2,黄波2   

  1. 1. 西南石油大学资源与环境学院,四川成都610500;2. 中国石化胜利油田采油研究院,山东东营257010
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-04-01 发布日期:2013-04-01

A Utility Mode Surface Cross-linked Acid System to Improve the BeachBar Sand Low-permeability Development Effects

Wen Changyun1, Wang Lei2, Ma Shou2, Huang Bo2   

  1. 1. School of Resources and Environment Engineering,Southwest Petroleum University,Chengdu,Sichuan 610500,China2. Production Technology Research Academy,Shengli Oilfield,SINOPEC,Dongying,Shandong 257010,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-04-01 Published:2013-04-01

摘要: 针对滩坝砂低渗透油藏渗透率低、储量规模大、储层物性差、非均质严重、层间差异大等地质特点,研制了新
型地面交联酸液体系,通过室内交联和破胶实验,筛选出了能在强酸性条件下交联,成本较低的稠化剂和交联剂,并配
制了交联酸进行室温成胶和破胶实验,确定了室内最优的交联比和聚合物黏度,加入添加剂配制成交联酸体系,分别
进行成胶、破胶、缓蚀、助排、耐温实验。新型地面交联酸液体系具有高黏度、低滤失,低酸岩反应速度,更大改造半径
等优点,在滨10X1 井应用取得良好增产效果。

关键词: 滩坝砂, 低渗透油藏, 交联酸, 稠化剂, 交联剂

Abstract: Aiming at beach-bar reservoirs with low permeability,large-scale reserves,poor properties,severe heterogeneity,
large differences between layers,a new ground crosslinked acid system is developed. By indoor crosslinking and gel breaking
test,a low cost of thickening agent and crosslinking agent are screened out which can crosslink under strong acidic conditions,
and are used to form the crosslinked acid. Through gel formed and broken tests under room temperature,the best crosslinked
ratio and polymer viscosity are determined indoor. Then,additives are used to form the cross linked acid system. Through
such tests as gel formed and broken,corrosion,cleanup,temperature,some advantages of the new system are shown with high
viscosity,low filtration,low acid-rock reaction speed,and greater transformation radius,which is applied on well Bin-10X1,
and has achieved good stimulation effectis.

Key words: beach and bar sand, low permeability reservoir, cross-linked acid, gelling agent, crosslinker