Optimization and practice of CO<sub>2</sub> huff and puff parameters of heavy oil reservoir in the middle and late development stage in Dagang Oilfield

WU Xi; ZHANG Zhuxin; ZHANG Xiaoqing; LI Yunpeng; CHEN Zixiang; TANG Yong

doi:10.13809/j.cnki.cn32-1825/te.2020.03.012

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Optimization and practice of CO₂ huff and puff parameters of heavy oil reservoir in the middle and late development stage in Dagang Oilfield

更新时间：2025-12-11

- Optimization and practice of CO₂ huff and puff parameters of heavy oil reservoir in the middle and late development stage in Dagang Oilfield
- Petroleum Reservoir Evaluation and Development Vol. 10, Issue 3, Pages: 80-85(2020)
- 作者机构：
  
  1. 中国石油大港油田公司,天津,300280
  2. 西南石油大学石油与天然气工程学院,四川,成都,610500
  3. 西南石油大学石油与天然气工程学院,四川,成都,610500
- 作者简介：
- 基金信息：
- DOI：10.13809/j.cnki.cn32-1825/te.2020.03.012
  CLC： TE357
- Published：2020
- 稿件说明：
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WU Xi, ZHANG Zhuxin, ZHANG Xiaoqing, et al. Optimization and practice of CO₂ huff and puff parameters of heavy oil reservoir in the middle and late development stage in Dagang Oilfield[J]. Petroleum Reservoir Evaluation and Development, 2020, 10(3): 80-85.
DOI：

WU Xi, ZHANG Zhuxin, ZHANG Xiaoqing, et al. Optimization and practice of CO₂ huff and puff parameters of heavy oil reservoir in the middle and late development stage in Dagang Oilfield[J]. Petroleum Reservoir Evaluation and Development, 2020, 10(3): 80-85. DOI： 10.13809/j.cnki.cn32-1825/te.2020.03.012.

摘要

大港油田稠油油藏水驱开发中后期含水快速上升

开采效果变差。CO

吞吐技术是开发稠油油藏的有效方式

但高含水后期稠油吞吐的参数优化及现场效果亟待研究。利用大港油田某稠油油藏

开展注CO

增溶膨胀和降黏实验。基于实验和测井资料

建立单井数值模拟模型

模拟了储层参数和CO

注入参数

分析了CO

吞吐增油机理。基于理论研究结果在板桥地区和刘官庄地区进行了CO

吞吐矿场试验。研究结果显示:CO

控水增油机理主要为膨胀原油体积、降低原油黏度

黏度降低幅度可达到98 %。注入量、注入速度、吞吐周期对CO

吞吐效果影响相对较大

建议单井CO

注入量在600~1 000 t（0.22~0.37HCPV）

注入速度在40~80 t/d

吞吐周期为3~4次。板桥及刘官庄地区共实施CO

吞吐12井次

平均单井增油3.4倍

综合含水率降低52.2 %。因此

吞吐是一种有效的控水增油技术

这对类似稠油油藏注水开采后期提高采收率具有重要的借鉴意义。

Abstract

The water cut of heavy oil reservoir in Dagang Oilfield increased rapidly in the middle and late period of water flooding

and the production effect became worse. CO

huff and puff technology is an effective method to develop heavy oil reservoirs. But the parameter optimization and field effect in the late stage of high water cut needed to be studied urgently. Therefore

the heavy oil reservoir in Dagang Oilfield was used to carry out the experiments of CO

injection for solubilization and swelling with viscosity reduction. Based on the experiments and well logging data

a single-well numerical simulation model was established to simulate the reservoir parameters and CO

injection parameters

and analyzed the CO

oil stimulation mechanism. Based on the results of theoretical researches

the in-site CO

huff and puff experiments were carried out in Banqiao and Liuguanzhuang. The research results show that the mechanism of water control and oil increase by CO

is mainly to expand the volume of crude oil and reduce the viscosity of crude oil

and the viscosity can be reduced by up to 98 %. The impact of injection volume

injection speed

and throughput cycle is relatively large on the CO

throughput effect. It is recommended that the CO

injection volume of a single well is 600~1 000 t（0.22~0.37HCPV）

the injection speed is 40~80 t/d

and the throughput runs 3~4 cycles. In Banqiao and Liuguanzhuang

huff and puff have been carried out 12 times on wells

with an average increase of 3.4 times of oil production per well and a 52.2 % reduction of comprehensive water cut. Thus

huff and puff technology is an effective water-control and oil-increasing technology

which has important reference significance for improving oil recovery in the later stage of water injection in similar heavy oil reservoirs.

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AI问答

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Optimization and practice of CO2 huff and puff parameters of heavy oil reservoir in the middle and late development stage in Dagang Oilfield

DOI：10.13809/j.cnki.cn32-1825/te.2020.03.012

摘要

Abstract

关键词

Keywords

references

Optimization and practice of CO₂ huff and puff parameters of heavy oil reservoir in the middle and late development stage in Dagang Oilfield