Single Step Online Acidizing Technology for Offshore Water
Injection Wells

doi:10.11885/j.issn.1674-5086.2014.02.17.05

Abstract

Abstract:

To address the problems associated with conventional acidizing on offshore platforms，such as large equipment
footprint，long operation time，difficulty in treatment coordination and negative impact on production caused by repetitive
acidizing. A novel and simplified acidizing technology for horizontal wells is proposed and studied in this paper. Intelligent
integrated acid-Inteacid，which is highly efficient in damage removal and precipitation inhibition，is used to substitute the
conventional three stages of acid system and simplify the mixing and injection process. Acid is added into the injection pipeline
system at predesigned ratio and conveyed to formation to achieve stimulation under the control of intelligent injection system
CCS. Real-time injection pressure and flow rate are monitored to compute the corresponding skin factor and adjust treatment
parameters automatically，ensuring the optimum result of acidizing. The application of this novel technology saves the operation
time and footprint，maximizes human resource and improves the treatment safety significantly. Over 80 field cases show that
the technology is effective in reducing injection pressure and enhancing productivity with high success ratio and efficiency.

Key words: offshore oilfield, online treatment, acidizing, single step, water injection well, real-time monitoring

Liu Pingli1, Zhang Lu1, Pan Yiyong2, Wang Tianhui2, Zhao Liqiang1. Single Step Online Acidizing Technology for Offshore Water
Injection Wells[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2014.02.17.05.

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References

[1] 李海涛，王永清，谭灿. 砂岩储层清水和污水混注

对储层损害的实验评价[J]. 石油学报，2007，28（2）：

137–139，143.

Li Haitao，Wang Yongqing，Tan Can. Experimental evaluation

on formation damage caused by re—injection of mixture

of fresh water and produced water in sandstone reservoir[

J]. Acta Petrolei Sinica，2007，28（2）：137–139，143.

[2] 崔波，王洪斌，冯浦涌，等. 绥中36–1 油田注水井堵塞

原因分析及对策[J]. 海洋石油，2012，32（2）：64–70.

Cui Bo，Wang Hongbin，Feng Puyong，et al. Reason analysis

for injection well clogging and the measures to breaking

down plugging in SZ36–1 Oil Field[J]. Offshore Oil，

2012，32（2）：64–70.

[3] 李旭，唐洪明，刘义刚，等. SZ36–1 油田污水悬浮物无

机组分研究[J]. 海洋石油，2010，30（2）：53–57，71.

Li Xu，Tang Hongming，Liu Yigang，et al. Study on inorganic

components in recirculated water from SZ36–1

Oilfield[J]. Offshore Oil，2010，30（2）：53–57，71.

[4] Al-Harbi B G，Al-Dahlan M N，Al-Khaldi M H，et al. Evaluation

of organic-hydrofluoric acid mixtures for sandstone

acidizing[C]. SPE 16967，2013.

[5] Rae P J，Portman L N，Acorda E P R，et al. Use of

single-step 9%HF in geothermal well stimulation[C]. SPE

108025，2007.

[6] Qu Q，Boles J L，Gomaa A M，et al. Matrix stimulation：

An effective one-step sandstone acid system[C]. SPE

164491，2013.

[7] Mahmoud M A，Bageri B S. A new diversion technique

to remove the formation damage from maximum reservoir

contact and extended reach wells in sandstone reservoirs[

C]. SPE 165163，2013.

[8] Rae P J，Lullo G. Single step matrix acidising with hfeliminating

preflushes simplifies the process improves the

results[C]. SPE 107296，2007.

[9] Nasr-El-Din H A，Samuel M M，Kelkar S K. Investigation

of a new single-stage sandstone acidizing fluid for high

temperature formations[C]. SPE 107636，2007.

[10] 刘晓光. 渤海油田酸化工艺技术[J]. 中国海上油气：工

程，1995，7（4）：50–56.

[11] 易飞，赵秀娟，刘文辉，等. 渤海油田注水井解堵增注

技术[J]. 石油钻采工艺，2004，26（5）：53–56.

Yi Fei，Zhao Xiujuan，Liu Wenhui，et al. Plugging removal

and injection enhancement technology for the water

injection wells in Bohai Oilfield[J]. Oil Drilling & Production

Technology，2004，26（5）：53–56.

[12] 刘欣，赵立强，杨寨，等. 不动管柱酸化工艺在渤海油

田的应用[J]. 石油钻采工艺，2004，26（5）：47–49.

Liu Xin，Zhao Liqiang，Yang Zhai，et al. Application of

acidizing technology with original production string in

Bohai Oilfield[J]. Oil Drilling & Production Technology，

2006，26（5）：47–49.

[13] 王鹏，赵立强，刘平礼，等. 不动管柱酸化工艺在

旅大5–2 油田的应用[J]. 断块油气田，2009，16（6）：

107–109.

Wang Peng，Zhao Liqiang，Liu Pingli，et al. Application

of original production string acidizing technology in Lvda

5–2 Oilfield of Bohai Bay[J]. Fault-Block Oil & Gas

Field，2009，16（6）：107–109.

[14] Gdanski R D. Kinetics of the primary reaction of HF on

alumino-silicates[J]. SPE Production & Facilities，2000，

15（4）：279–287.

[15] Gdanski R D. Kinetics of the secondary reaction of HF on

alumino-silicates[J]. SPE Production & Facilities，1999，

14（4）：260–268.

[16] Gdanski R. Kinetics of tertiary reactions of hydrofluoric

acid on aluminosilicates[J]. SPE Production & Facilities，

1998，13（2）：75–80.

[17] 王宝峰，赵忠扬，薛芳渝. 砂岩基质酸化中HF 与铝硅

酸盐的二次，三次反应研究[J]. 西南石油学院学报，

2002，24（5）：61–64.

Wang Baofeng，Zhao Zhongyang，Xue Fangyu. Study of

the second and the third reaction of HF on alumina silicate

during sandstone matrix acidizing[J]. Journal of Southwest

Petroleum Institute，2002，24（5）：61–64.

[18] 杨玲智. 沙埝油田注入水水质评价及指标优选[D]. 成

都：西南石油大学，2012.

[19] Ford W G F，Walker M L，Halterman M P，et al. Removing

a typical iron sulfide scale：The scientific approach[C].

SPE 24327，1992.

[20] Assem A I，Nasr-El-Din H A，De Wolf C. A new finding

in the interaction between chelating agents and carbonate

rocks during matrix acidizing treatments[C]. SPE 164130，

2013.

[21] 俞英珍，金鲜花，傅佳亚. 钙离子螯合力测试方法及比

较[J]. 印染助剂，2006，23（12）：40–42.

Yu Yingzhen，Jin Xianhua，Fu Jiaya. Test method for

Caion chelating power and comparison thereof[J]. Textile

Auxiliaries，2007，23（12）：40–42.

[22] 沈淑英，魏艳，赵梅，等. 螯合铁离子能力测定方法比

较[J]. 印染助剂，2009，26（7）：50–52.

Shen Shuying，Wei Yan，Zhao Mei，et al. The comparison

of test methods for Fe（III）ion chelating power[J]. Textile

Auxiliaries，2009，26（7）：50–52.

[23] Ma L，Johns R T，Zhu D，et al. Fast method for real-time

interpretation of variable-rate wells with changing skin：

application to matrix acidizing[C]. SPE 64651，2000.