A Study of Gel-plugging Agents Used in Gas Channels with Multi-thermal Fluids in Offshore Oilfields

doi:10.11885/j.issn.1674-5086.2016.03.25.02

Abstract

Abstract: With respect to the problems arising from the application of multi-thermal fluids in the Bohai Bay field, such as the formation of gas channels and the low plugging strength of the existing foaming system, a series of experiments were conducted to evaluate and select the rheological property and blocking efficiency of gel-plugging agents with relatively high plugging strength. At the same time, the effects of oil content and wastewater on the performance of the plugging system, as well as those of the plugging effects on the demulsification of the recovered liquid, were evaluated. The experimental results proved that the preferred gel-plugging agent demonstrated high blocking efficiency at high temperatures and could be prepared with waste water of the platform. The tolerance of the gel-plugging agents was relatively high, and their application did not significantly affect the demulsification output. Based on a large number of experiments, a selection chart for the gel formulation based on different oil reservoirs and various gas channeling conditions was established to guide the on-site design and implementation of the scheme.

Key words: heavy oil reservoirs, thermal recovery, gas channeling, chemical plugging, selection chart

CLC Number:

TE357

HAN Xiaodong, ZOU Jian, WANG Qiuxia, LIU Yigang, MENG Xianghai. A Study of Gel-plugging Agents Used in Gas Channels with Multi-thermal Fluids in Offshore Oilfields[J]. 西南石油大学学报(自然科学版), 2017, 39(6): 167-172.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2016.03.25.02

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References

[1] 刘光成. 渤海稠油多元热流体吞吐技术研究[J]. 长江大学学报(自然科学版),2014,11(10):99-103.
[2] 唐晓旭,马跃,孙永涛. 海上稠油多元热流体吞吐工艺研究及现场试验[J]. 中国海上油气,2011,23(3):185-188.doi:10.3969/j.issn.1673-1506.2011.03.010 TANG Xiaoxu, MA Yue, SUN Yongtao. Research and field test of complex thermal fluid huff and puff technology for offshore viscous oil recovery[J]. China Offshore Oil and Gas, 2011, 23(3):185-188. doi:10.3969/j.issn.1673-1506.2011.03.010
[3] 黄颖辉,刘东,罗义科. 海上多元热流体吞吐先导试验井生产规律研究[J]. 特种油气藏,2013,20(2):84-86. doi:10.3969/j.issn.1006-6535.2013.02.020 HUANG Yinghui, LIU Dong, LUO Yike. Research on multiple thermal fluid stimulation for offshore heavy oil production[J]. Special Oil and Gas Reservoirs, 2013, 20(2):84-86. doi:10.3969/j.issn.1006-6535.2013.02.020
[4] 刘小鸿,张风义,黄凯,等. 南堡35-2海上稠油油田热采初探[J]. 油气藏评价与开发,2011,1(1-2):61-63, 77.doi:10.3969/j.issn.2095-1426.2011.01.012 LIU Xiaohong, ZHANG Fengyi, HUANG Kai, et al. Discussion about the thermal recovery of NB35-2 offshore heavy oilfield[J]. Reservoir Evaluation and Development, 2011, 1(1-2):61-63, 77. doi:10.3969/j.issn.2095-1426.2011.01.012
[5] 吴海君,杜庆军,宫汝祥. 大孔道水平井多元热流体井间窜流程度表征研究[J]. 断块油气田,2015,22(2):206-209.doi:10.6056/dkyqt201502015 WU Haijun, DU Qingjun, GONG Ruxiang. Characterization of gas breakthrough degree with technology of multiple-thermal fluids for horizontal well considering high permeability channel[J]. Fault-Block Oil & Gas Field, 2015, 22(2):206-209. doi:10.6056/dkyqt201502015
[6] 张红玲,刘慧卿,王晗,等. 蒸汽吞吐汽窜调剖参数优化设计研究[J]. 石油学报,2007,28(2):105-108.doi:10.7623/syxb200206021 ZHANG Hongling, LIU Huiqing, WANG Han, et al. Optimization design of profile control parameters for steam stimulation wells[J]. Acta Petrolei Sinica, 2007, 28(2):105-108. doi:10.7623/syxb200206021
[7] 李敬,张瑾,于剑飞. 氮气泡沫辅助蒸汽驱提高稠油采收率技术研究[J]. 油气藏评价与开发,2014,4(4):47-52.doi:10.3969/j.issn.2095-1426.2014.04.011 LI Jing, ZHANG Jin, YU Jianfei. Enhanced heavy oil recovery technology by nitrogen foam assisted steam flooding[J]. Reservoir Evaluation and Development, 2014, 4(4):47-52. doi:10.3969/j.issn.2095-1426.2014.04.011
[8] 朱明,姚凯,叶惠民,等. 高温氮气泡沫调剖技术在Girasol油田的应用[J]. 特种油气藏,2015,22(2):137-139.doi:10.3969/j.issn.1006-6535.2015.02.035 ZHU Ming, YAO Kai, YE Huimin, et al. Application of profiling technology by using high temperature nitrogen foam in Girasol Oilfield[J]. Special Oil and Gas Reservoirs, 2015, 22(2):137-139. doi:10.3969/j.issn.10066535.2015.02.035
[9] 王若浩,赵进,张清军,等. 河南油田浅薄层稠油热化学蒸汽吞吐技术[J]. 石油地质与工程,2014,28(4):132-134.doi:10.3969/j.issn.1673-8217.2014.04.038
[10] 赵修太,付敏杰,王增宝,等. 稠油热采调堵体系研究进展综述[J]. 特种油气藏,2013,20(4):1-4.doi:10.3969/j.issn.1006-6535.2013.04.001 ZHAO Xiutai, FU Minjie, WANG Zengbao, et al. Research overview of profile control and water shut off agents for heavy oil thermal recovery[J]. Special Oil and Gas Reservoirs, 2013, 20(4):1-4. doi:10.3969/j.issn.1006-6535.2013.04.001
[11] 李晓军,齐宁,张琪,等. 改性栲胶高温堵剂的性能评价[J]. 油田化学,2007,24(2):131-134,126. doi:10.3969/j.issn.1000-4092.2007.02.011 LI Xiaojun, QI Ning, ZHANG Qi, et al. Performance prperties of modified tannin extract based plugging agent for high temperature reservoirs[J]. Oilfield Chemistry, 2007, 24(2):131-134, 126. doi:10.3969/j.issn.10004092.2007.02.011
[12] 王小泉,马宝岐. 调整蒸汽注入剖面用的高温堵剂[J]. 油田化学,1991,8(1):74-78.WANG Xiaoquan, MA Baoqi. High temperature plugging agents for steam injection profile control[J]. Oilfield Chemistry, 1991, 8(1):74-78.
[13] 沈文敏. 超稠油水平井高温调剖技术[J]. 断块油气田, 2009,16(5):107-109. SHEN Wenmin. High temperature profile control technology of super heavy oil horizontal well[J]. Fault-block Oil & Gas Field, 2009, 16(5):107-109.
[14] LIU Yigang, ZOU Jian, MENG Xianghai, et al. Treatment technology of steam breakthrough for offshore heavy oil reservoirs developed by huff and puff with multicomponent thermal fluid[C]. SPE 174703, 2015. doi:10.2118/174703-MS
[15] 张恩臣. 高温凝胶调剖剂的研制及在辽河油田的应用[J]. 石油地质与工程,2010,24(6):120-121.doi:10.3969/j.issn.1673-8217.2010.06.037 ZHANG Enchen. Development and application of high temperature gel in Liaohe Oilfield[J]. Petroleum Geology and Engineering, 2010, 24(6):120-121. doi:10.3969/j.issn.1673-8217.2010.06.037