适用于稠油热采井的激活型完井液体系

邢希金; 刘书杰; 罗刚; 谢仁军

doi:10.3969/j.issn.1001-5620.2016.03.023

适用于稠油热采井的激活型完井液体系

doi: 10.3969/j.issn.1001-5620.2016.03.023

1.
中海油研究总院, 北京 100028
2. 荆州市汉科新技术研究所, 湖北荆州 434000

基金项目: 国家科技重大专项“海上稠油热采井注汽过程储层保护实验（试验）研究”（2011ZX05024-005）项目资助。

详细信息

作者简介:
邢希金,高级工程师,2008年毕业于西南石油大学并获硕士研究生学位,现主要从事海洋石油开发钻完井液及非常规工作液研究工作。电话(010)84526245;E-mail:xingxj2@cnooc.com.cn。

中图分类号: TE257.6
计量
- 文章访问数: 629
- HTML全文浏览量: 138
- PDF下载量: 211
- 被引次数: 0
出版历程
- 收稿日期: 2016-03-25
- 刊出日期: 2016-05-31

Activated Completion Fluid for Thermal Heavy Oil Recovery

1.
Research Institute of CNOOC, Beijing 100028
2. Hubei HANC New-Technology Research Center, Jingzhou, Hubei 434000

摘要

摘要: 稠油热采井在注蒸汽过程中及关井后，进入油层的完井液滤液和蒸汽中的水在高温下将与地层岩石矿物及地层流体发生反应，产生储层伤害。为此，提出使用激活型完井液体系。引入激活酸HJS，使残留在地层中的完井液在一定温度下激活，释放出［H⁺］，降低pH值，减小矿物在高pH条件下溶解和转化而对储层产生的伤害；并优选出了高温防膨剂HTW、高温减阻剂HUL、高温溶蚀剂HDB、高温缓蚀剂HJP以及最优加量，构建了激活型完井液体系。室内评价表明，该体系激活温度为80℃，激活时间为60 min，激活酸HJS的加入可以大幅度提高完井液对钻屑的溶蚀能力；体系在220℃高温下老化8 h的膨胀率仅为1.11%，与地层水配伍，混合液的浊度在3.6～6.9 NTU之间，蒸汽（270℃）驱替后渗透率恢复值大于90%（测温为80℃），表明该激活型完井液体系具有很好的储层保护效果。
- 稠油热采 /
- 完井液 /
- 激活型 /
- 减阻 /
- 蒸汽驱替 /
- 防止地层损害
Abstract: In thermal recovery of heavy oils, after well shut-in, the filtrates of the completion fluids entering the reservoir formations and water from the injected steam will react with rock minerals and formation fluids at high temperature. This reaction will inevitably damage the reservoir formations in contact. To avoid this damage, an activating completion fluid has been introduced. The activating acid, HJS, is used to activate the residue completion fluid in reservoir formations at certain temperature, and hydrogen ions are released to reduce the pH of the reaction system. This will mitigate the dissolution of formation minerals at high pH which is a cause of formation damage. Several additives such as high temperature swelling inhibitor HTW, high temperature friction reducer HUL, high temperature erosion agent HDB and high temperature corrosion inhibitor HJP were chosen and their optimum concentrations determined. With these additives, an activating completion fluid has been formulated. In laboratory experiments, the activating temperature of the completion fluid is 80℃, and the activating time, 60 min. The use of HJS greatly enhances the dissolution of drilled cuttings by the completion fluid. The ratio of swelling of the completion fluid after aging at 220℃ for 8 h is only 1.11%. The completion fluid is compatible with formation waters, and the turbidity of the mixed fluid is between 3.6 NTU and 6.9 NTU. The recovery of permeability after steam (270℃) flooding is greater than 90% (measured at 80℃). These data demonstrate that the activating completion fluid plays a positive role in protecting reservoir formations.
- Thermal recovery of heavy oil /
- Completion fluid /
- Activating /
- Friction reduction /
- Steam flooding /
- Prevent formation from damaging

HTML全文

参考文献(10)

郭平. 稠油热采过程中的水-岩反应实验研究[J]. 石油勘探与开发,2007,34(2):222-225. GUO Ping. Exp rimentals tudy of water-rock reaction during thermal production[J]. Petroleum Exploration and Development,2007,34(2):222-225.

史宏才,朱江庆,王诗中,等. 高温下矿物-水反应对油层伤害的模拟研究[J]. 油田化学, 1997,14(1):32-35. SHI Hongcai,ZHU Jiangqing,WANG Shizhong, et al. Simulation study on water-rock reaction during hightemperature[J].Oil field Chemistry,1997,14(1):32-35.

李向良,郭平,庞雪君,等. 高温高压蒸汽凝析液对超稠油油藏储层的伤害研究[J]. 特种油气藏,2003, 10(2):88-93. LI Xiangliang, GUO Ping, PANG Xuejun, et al. Study on super heavy oil reservoir damage due to high temperature and high pressure steam condensate[J]. Special Oil and Gas Reservoir, 2003,10(2):88-93.

邓三鸿,徐士进,王汝成,等. 热采条件下砂岩储层矿物转化的实验研究[J]. 高校地质学报, 2000, 6(2):315-321. DENG Sanhong,XU Shijin,WANG Rucheng,et al. Experimental study on mineral transformation in sandstone reservoir under EOR conditions[J]. Geological Journal of China Universities,2000, 6(2):315-321.

李相远,郭平,李向良,等. 疏松砂岩稠油油藏热采储层伤害研究[J]. 油气采收率技术,2000,7(1):57-61. LI Xiangyuan,GUO Ping, LI Xiangliang,et al. Reservoir damage study in thermal recovery of heavy oil reservoir of loose sand[J].Oil & Gas Recovery Techinology,2000,7(1):57-61.

马玉霞. 稠油油藏注蒸汽后沥青沉积引起的储层变化[J]. 河南石油, 2004,18(zl):56-57, 63. MA Yuxia. The change of reservoir according to asphalt deposit of heavy oil after vapour injection[J].Henan Petroleum, 2004,18(zl):56-57, 63.

张关龙,陈世悦,王海方. 稠油热采过程储层中黏土矿物转化研究进展[J]. 矿物学报, 2009, 29(1):113-118. ZHANG Guanlong, CHENG Shiyue, WANG Haifang. Advance in research on clay mineral alteration in heavy oil reservoirs during thermal recovery[J]. Acta Mineralogical Sinica, 2009, 29(1):113-118.

李孟涛,杨广清. 稠油油藏注蒸汽开采对岩石层的伤害研究[J]. 特种油气藏, 2008, 15(4):82-85. LI Mengtao,YANG Guangqing. Study on the damage of heavy oil reservoir rock by steam injection[J]. Special Oil and Gas Reservoir, 2008, 15(4):82-85.

范洪富,刘永建,赵晓菲. 稠油在水蒸汽作用下组成变化研究[J]. 燃烧化学学报, 2001, 29(3):269-272. FAN Hongfu, LIU Yongjian, ZHAO Xiaofei. Study on composition changes of heavy oils under steam treament[J]. Journal of Fuel Chemistry and Technology, 2001, 29(3):269-272.

王勇,申宏,单保华,等. 稠油热采对储层伤害的评价[J]. 油气田地面工程, 2008, 27(11):48-49. WANG Yong, SHEN Hong, SHAN Baohua, et al. Eveluation of heavy oil thermal recovery on reservoir damage[J].Oil-Gas Field Surface Engineering,2008, 27(11):48-49.

施引文献

资源附件(0)

访问统计