DMF新型超分子暂堵剂研发及性能评价

油气藏评价与开发 ›› 2019, Vol. 9 ›› Issue (1): 51-55.

DMF新型超分子暂堵剂研发及性能评价

徐昆¹,李达^2,³,郭玉杰⁴,范希良^2,³,赵立强¹

^1. 西南石油大学油气藏地质与开发工程国家重点实验室,四川成都 610500
^2. 中国石油长庆油田油气工艺研究院,陕西西安 710018
^3. 中国石油长庆油田低渗透油气田勘探开发国家工程实验室,陕西西安 710018
^4. 中国石油长庆油田公司第五采气厂,内蒙古鄂尔多斯 017300

收稿日期:2018-02-02 发布日期:2019-02-15 出版日期:2019-02-26
作者简介:徐昆（1975—）,男,研究员,油气田储层改造新方法、新工艺、新技术研究及推广。
基金资助:
中国石油长庆油田公司项目“转向暂堵压裂液体系研究”(CQYT-SLGYJZX-2015-JS-1953)

Design and property evaluation of a novel supermolecule temporary plugging agent DMF

Xu Kun¹,Li Da^2,³,Guo Yujie⁴,Fan Xiliang^2,³,Zhao Liqiang¹

^1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
^2. Oil and Gas Technology Research Institute of Changqing Oilfield, Xi'an, Shaanxi 710018, China
^3. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Xi'an Shaanxi 710018, China
^4. NO.5 Gas Production Plant of Changqing Oilfield, CNPC, Ordos, Inner Mongolia 017300, China

Received:2018-02-02 Online:2019-02-15 Published:2019-02-26

摘要/Abstract

摘要：

苏里格气田属于典型的致密油气藏,曾引用“重复压裂+体积压裂”堵老缝、造多级裂缝网络的理念进行压裂改造,但由于储层致密,常规暂堵剂难以有效进入裂缝进行封堵转向,无法达到预期效果。基于超分子热致凝胶机理,设计出了一种新型超分子热致凝胶暂堵剂DMF,并对其成胶、破胶、转向性能进行了测试。研究表明,新型暂堵剂DMF为受温度激发的热致凝胶体系,在低常温下为低黏度的液体,便于注入;受高温激发,在100 ~ 110 ℃迅速成胶,封堵裂缝,实现转向;持续升温后,自动破胶,实现解堵;其动态封堵能力为122.92 MPa/m,相比常规暂堵剂具有更好的封堵性能,是一种适合致密油气藏暂堵的理想转向剂。

关键词: 苏里格, 致密, 超分子, 热致凝胶, 暂堵剂

Abstract:

Sulige gas field is a typical tight-gas reservoir whose ultralow permeability comes to a problem to a noble stimulation technology with its name refracturing coupling with SRV fracturing, owing to the failure of injection by conventional plugging agent, which aims to plug existing fractures and create more multistage fractures. So we designed the novel supermolecule temporary plugging agent--DMF and conducted a series of tests including gelling, break gelling, and temporary plugging steering. The results had demonstrated that the new plugging agent DMF was responded to high temperature, about 100 ~ 110℃, transforming into high viscosity supramolecular gel from low viscosity liquid at low or normal temperature, plugging existing fractures. When the temperature got higher, the gel of DMF turned into liquid automatically. Then, the DMF showed a better performance（122.92 MPa/m） of temporary plugging steering than that of conventional plugging agent, demonstrating a more desirable diversion agent for tight-gas reservoirs.

Key words: Sulige, tight reservoir, supermolecule, heat-induced gel, temporary plugging agent

中图分类号:

TE357

徐昆,李达,郭玉杰等. DMF新型超分子暂堵剂研发及性能评价[J]. 油气藏评价与开发, 2019, 9(1): 51-55.

Kun Xu,Da Li,Yujie Guo, et al. Design and property evaluation of a novel supermolecule temporary plugging agent DMF[J]. Reservoir Evaluation and Development, 2019, 9(1): 51-55.

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参考文献 23

[1]	费世祥, 王东旭, 林刚 , 等. 致密砂岩气藏水平井开发关键地质技术——以苏里格气田东南为例[J]. 天然气地球科学, 2014,25(10):1620-1629. doi: 10.11764/j.issn.1672-1926.2014.10.1620
[2]	何明舫, 马旭, 张燕明 , 等. 苏里格气田“工厂化”压裂作业方法[J]. 石油勘探与开发, 2014,41(3):349-353. doi: 10.11698/PED.2014.03.11
[3]	郑云川, 陶建林, 陆灯云 , 等. 苏里格气田储层改造的“三封四压”配套技术[J]. 天然气工业, 2007,27(12):102-104. doi: 10.3321/j.issn:1000-0976.2007.12.031
[4]	马旭, 郝瑞芬, 来轩昂 , 等. 苏里格气田致密砂岩气藏水平井体积压裂矿场试验[J]. 石油勘探与开发, 2014,41(6):742-747. doi: 10.11698/PED.2014.06.15
[5]	卢涛, 刘艳侠, 武力超 , 等. 鄂尔多斯盆地苏里格气田致密砂岩气藏稳产难点与对策[J]. 天然气工业, 2015,35(6):43-52. doi: 10.3787/j.issn.1000-0976.2015.06.006
[6]	孟德伟, 贾爱林, 冀光 , 等. 大型致密砂岩气田气水分布规律及控制因素——以鄂尔多斯盆地苏里格气田西区为例[J]. 石油勘探与开发, 2016,43(4):607-614. doi: 10.11698/PED.2016.04.13
[7]	庞崇友, 张亚东, 章辉若 , 等. 地质统计反演在苏里格气田致密薄砂体预测中的应用[J]. 物探与化探, 2017,41(1):16-21. doi: 10.11720/wtyht.2017.1.03
[8]	Maxwell S C, Urbancic T I, Steinsberger N, et al. Microseismic imaging of hydraulic fracture complexity in the Barnett shale[C]// paper SPE-77440-MS presented at the SPE Annual Technical Conference and Exhibition, 29 September-2 October 2002, San Antonio,Texas.
[9]	Fisher M K, Wright C A, Davidson B M , et al. Integrating fracture mapping technologies to improve stimulations in the Barnett Shale[J]. SPE Production & Facilities, 2005,20(2):85-93.
[10]	Mayerhofer M J, Lolon E, Warpinski N R , et al. What is stimulated reservoir volume?[J]. SPE Production & Operations, 2010,25(01):89-98.
[11]	达引朋, 陆红军, 杨博丽 , 等. 低渗透老油田新型多缝重复压裂技术研究与应用[J]. 石油钻探技术, 2015,43(3):65-70. doi: 10.11911/syztjs.201503013
[12]	胡永全, 林辉, 赵金洲 , 等. 重复压裂技术研究[J]. 天然气工业, 2004,24(3):72-75.
[13]	Babey A, Schmeltz P, Fragachan F. Using eco-friendly biodegradable materials for designing new completions and re-fracturing acidizing applications in which diversion and zonal isolation enhance efficiency[C]// paper SPE-174814-MS presented at the SPE Annual Technical Conference and Exhibition, 28-30 September 2015, Houston, Texas,USA.
[14]	Pierre Terech A, Weiss R G . Low molecular mass gelators of organic liquids and the properties of their gels[J]. Cheminform, 1997,29(11):3133-3160. doi: 10.1002/chin.199811319 pmid: 11851487
[15]	王鹏 . 一种酰胺基团结尾的超级凝胶因子的酶促制备及其应用[D]. 天津:南开大学, 2013.
[16]	Paramonov S E, Howook Jun A, Hartgerink J D . Self-assembly of peptide-amphiphile nanofibers: The roles of hydrogen bonding and amphiphilic packing[J]. Journal of the American Chemical Society, 2006,128(22):7291-7298. doi: 10.1021/ja060573x pmid: 16734483
[17]	刘海林, 马晓燕, 袁莉 , 等. 分子自组装研究进展[J]. 材料科学与工程学报, 2004,22(2):308-311. doi: 10.3969/j.issn.1673-2812.2004.02.037
[18]	Wang D, Hao J . Self-assembly fibrillar network gels of simple surfactants in organic solvents[J]. Langmuir, 2011,27(5):1713-1717. doi: 10.1021/la104333x pmid: 21214186
[19]	沈利英, 陈肖卓, 于海涛 , 等. 刺激响应型有机小分子凝胶的研究进展[J]. 有机化学, 2009,29(3):321-333.
[20]	苏婷, 何宇鹏, 丁晓光 , 等. 双组分超分子凝胶的研究进展[J]. 现代化工, 2017,37(2):57-61.
[21]	Keita Kuroiwa, Tomoko Shibata, Akihiko Takada , et al. Heat-set gel-like networks of lipophilic CO(II) triazole complexes in organic media and their thermochromic structural transitions[J]. Journal of the American Chemical Society, 2004,126(7):2016. doi: 10.1021/ja037847q pmid: 14971934
[22]	Zhou J L, Chen X J, Zheng Y S . Heat-set gels and egg-like vesicles using two component gel system based on chiral calix[4]arenes[J]. Chemical Communications, 2007,48(48):5200. doi: 10.1039/b713548c pmid: 18060141
[23]	付美龙, 陈畅, 胡泽文 . 转向重复压裂高效暂堵剂性能评价[J]. 西安石油大学学报:自然科学版, 2016,31(5):43-47. doi: 10.3969/j.issn.1673-064X.2016.05.006