川西致密砂岩气田采气工艺实践与效果

doi:10.11885/j.issn.1674-5086.2022.02.28.01

摘要/Abstract

摘要： 川西侏罗系气藏为典型的致密砂岩气藏，无明显边底水、层间水，气井生产少量产水。随着气田不断开发，气井井底积液加剧，造成产量压力双递减，稳产期短，低压低产生产时间长，排水采气是气藏长期稳产的关键技术。为探寻适用于川西致密砂岩气田的排水采气工艺及管理体系，基于25 a的研究和实践，建立并完善了一套基于流压实测、回声仪、模型及矿场经验法的产水气井多元化井筒诊断技术，根据气井自身能量变化规律，形成了差异化泡沫排水采气工艺为主体，互补型气举排水采气工艺为辅助，以连续油管和柱塞气举为补充的致密气田排水采气体系，并通过数字化技术发展，提出了“精细诊断+智能工艺一体化”的排水采气精细化管理体系，研制了积液在线诊断、丛式井整体式泡排及柱塞气举等智能化配套设备，并通过1 200余口气井的现场应用，有效提高了气井排液稳产效果，降低了老井综合递减率，对国内外类似气田开发具有一定的借鉴意义。

关键词: 致密砂岩气藏, 泡沫排水, 柱塞气举, 速度管柱, 排水采气

Abstract: The Jurassic gas reservoir in western Sichuan is a typical low-porosity and low-permeability sandstone gas reservoir, which produces a small amount of formation water during the development of the gas reservoir, and there is no obvious edge and bottom water or inter-layer water. With the continuous development of the gas field, the accumulation of fluid at the bottom of gas wells has intensified, resulting in rapidly decline of production and pressure, short stable production period and long low-pressure and low-production production time, and deliquification technology is a key factor for long-term stable gas production. Based on 25 years of research and practice, a set of diversified wellbore diagnostic techniques for water-producing gas wells is established and improved, based on flow-pressure measurements, echometer test and empirical methods, according to the law of gas well energy change, a differentiated foam drainage technology, supplemented by complementary gas lift deliquification and velocity strings artificial lift methods is formed, by the development of digital technology, a management system of "fine diagnosis + intelligent process integration" is proposed, intelligent supporting devices such as online diagnosis of fluid accumulation, cluster wells foaming and plunger lift device is developed. Through more than 1 200 gas wells application, it has effectively improved the effect of gas well drainage and production stabilization, and reduced the reduction of comprehensive decline of old wells, which has certain significance for the development of similar gas fields at home and abroad.

Key words: tight sandstone gas reservoir, foaming drainage, plunger lift, velocity strings, deliquification lift

中图分类号:

TE371

杜洋, 郭新江, 刘通, 张国东. 川西致密砂岩气田采气工艺实践与效果[J]. 西南石油大学学报(自然科学版), 2022, 44(3): 188-196.

DU Yang, GUO Xinjiang, LIU Tong, ZHANG Guodong. Practice and Effect of Gas Production Technology in Western Sichuan Tight Sandstone Gas Field[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2022, 44(3): 188-196.

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参考文献

[1] 宋岩. 中国天然气资源分布特征与勘探方向[J]. 天然气工业,2003,23(1):1-4. doi:10.3321/j.issn:1000-0976.2003.01.001 SONG Yan. Distribution characteristics and exploration direction of natural gas resources in China[J]. Natural Gas Industry, 2003, 23(1):1-4. doi:10.3321/j.issn:1000-0976.2003.01.001
[2] 王世谦,罗启后,邓鸿斌,等. 四川盆地西部侏罗系天然气成藏特征[J]. 天然气工业,2001,21(2):1-8. doi:10.3321/j.issn:1000-0976.2001.02.001 WANG Shiqian, LUO Qihou, DENG Hongbin, et al. Characteristics of forming Jurassic gas reservoirs in the west part of Sichuan Basin[J]. Natural Gas Industry, 2001, 21(2):1-8. doi:10.3321/j.issn:1000-0976.2001.02.001
[3] 谢刚平,叶素娟,田苗. 川西坳陷致密砂岩气藏勘探开发实践新认识[J]. 天然气工业, 2014, 34(1):44-53. doi:10.3787/j.issn.1000-0976.2014.01.006 XIE Gangping, YE Sujuan, TIAN Miao. New understandings of exploration and development practices in tight sand stone gas reservoirs in Western Sichuan Depression[J]. Natural Gas Industry, 2014, 34(1):44-53. doi:10.3787/j.issn.1000-0976.2014.01.006
[4] 王国亭,孙建伟,黄锦袖,等. 神木气田低渗致密储层特征与水平井开发评价[J]. 西南石油大学学报(自然科学版), 2019, 41(5):1-9. doi:10.11885/j.issn.1674-5086.2018.07.20.01 WANG Guoting, SUN Jianwei, HUANG Jinxiu, et al. The Characteristics of the low permeability tight reservoir in the Shenmu Gas Field and the evaluation of horizontal well development[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2019, 41(5):1-9. doi:10.11885/j.issn.1674-5086.2018.07.20.01
[5] 任山,杨永华,刘林,等. 川西低渗致密气藏水平井开发实践与认识[J]. 钻采工艺, 2009, 32(3):50-52. doi:10.3969/j.issn.1006-768X.2009.03.017 REN Shan, YANG Yonghua, LIU Lin, et al. Practice of horizontal well development in low-permeability tight gas reservoir in West Sichuan[J]. Drilling & Production Technology, 2009, 32(3):50-52. doi:10.3969/j.issn.1006-768X.2009.03.017
[6] 刘忠群,徐士林,刘君龙,等. 四川盆地川西坳陷深层致密砂岩气藏富集规律[J]. 天然气工业,2020,40(2):31-40. doi:10.3787/j.issn.1000-0976.2020.02.004 LIU Zhongqun, XU Shilin, LIU Junlong, et al. Enrichment laws of deep tight sandstone gas reservoirs in the Western Sichuan Depression, Sichuan Basin[J]. Natural Gas Industry, 2020, 40(2):31-40. doi:10.3787/j.issn.1000-0976.2020.02.004
[7] 金忠臣,杨川东,张守良. 采气工程[M]. 北京:石油工业出版社,2004. JIN Zhongchen, YANG Chuandong, ZHANG Shouliang. Gas production engineering[M]. Beijing:Petroleum Industry Press, 2004.
[8] 段永明,曾焱,刘成川,等. 窄河道致密砂岩气藏高效开发技术——以川西地区中江气田中侏罗统沙溪庙组气藏为例[J]. 天然气工业,2020,40(5):58-65. doi:10.3787/j.issn.1000-0976.2020.05.007 DUAN Yongming, ZENG Yan, LIU Chengchuan, et al. Technologies for the efficient development of tight sandstone gas reservoirs in narrow channels:A case study of Middle Jurassic Shaximiao Formation gas reservoir in the Zhongjiang Gas Field of Western Sichuan Basin[J]. Natural Gas Industry, 2020, 40(5):58-65. doi:10.3787/j.issn.1000-0976.2020.05.007
[9] 孙勇,任山,王世泽,等. 川西低渗致密气藏难动用储量压裂关键技术研究[J]. 钻采工艺, 2008, 31(4):68-70. doi:10.3969/j.issn.1006-768X.2008.04.022 SUN Yong, REN Shan, WANG Shize, et al. Research on fracturing technology for difficult-to-produce reserves in low permeability and tight gas reservoir in West Sichuan[J]. Drilling& Production Technology, 2008, 31(4):68-70. doi:10.3969/j.issn.1006-768X.2008.04.022
[10] 黄艳,佘朝毅,钟晓瑜,等. 国外排水采气工艺技术现状及发展趋势[J]. 钻采工艺,2005,28(4):57-61. doi:10.3969/j.issn.1006-768X.2005.04.020 HUANG Yan, SHE Chaoyi, ZHONG Xiaoyu, et al. The resent situation and development tendency on the foreign technology of dewatering gas production[J]. Drilling & Production Technology, 2005, 28(4):57-61. doi:10.3969/j.issn.1006-768X.2005.04.020
[11] KALWAR S A, AWAN A Q, REHMAN A U. Production optimization of high temperature liquid hold up gas well using capillary surfactant injection[C]. SPE 183676-MS, 2017. doi:10.2118/183676-MS
[12] OLAYEMI S, CANO M, SANCHEZ S. Hydrocarbon flow assurance:Low rate and pressure gas field experience[C]. SPE 169240-MS, 2014. doi:10.2118/169240-MS
[13] 孟红霞,徐悦新,陈德春,等. 气井井筒积液高度计算模型研究[J]. 复杂油气藏,2019,12(1):81-85. doi:10.16181/j.cnki.fzyqc.2019.01.017 MENG Hongxia, XU Yuexin, CHEN Dechun, et al. Calculation model for height of liquid loading in gas wellbore[J]. Complex Hydrocarbon Reservoirs, 2019, 12(1):81-85. doi:10.16181/j.cnki.fzyqc.2019.01.017
[14] 刘卓,孙厚台,罗明良,等. 低渗气井化学控水采气技术研究进展[J]. 应用化工,2012,41(12):2142-2146. doi:10.16581/j.cnki.issn1671-3206.2012.12.042 LIU Zhuo, SUN Houtai, LUO Mingliang, et al. Research progress of chemical water control gas production technology in low permeability gas wells[J]. Applied Chemica, 2012, 41(12):2142-2146. doi:10.16581/j.cnki.issn1671-3206.2012.12.042
[15] 曹光强,冯胜利,吴程,等. 高温高压高盐泡排剂性能特征实验[J]. 大庆石油地质与开发,2015,34(2):103-105. doi:10.3969/J.ISSN.1000-3754.2015.02.020 CAO Guangqiang, FENG Shengli, WU Cheng, et al. Experiments in the performance characteristics of high-temperature, high-pressure and high-salinity foam discharging agents[J]. Petroleum Geology and Oilfield Development in Daqing, 2015, 34(2):103-105. doi:10.3969/J.ISSN.1000-3754.2015.02.020
[16] 郭玲玲,李岩,吴学松,等. 含水气井积液诊断及分析新方法[J]. 天然气技术与经济,2016,10(2):43-46. doi:10.3969/j.issn.2095-1132.2016.02.011 GUO Lingling, LI Yan, WU Xuesong, et al. A new approach for diagnosing and analyzing liquid loading in water-bearing gas wells[J]. Natural Gas Technology and Economy, 2016, 10(2):43-46. doi:10.3969/j.issn.2095-1132.2016.02.011
[17] 刘建仪,李颖川,杜志敏. 高气液比气井气液两相节流预测数学模型[J]. 天然气工业,2005,25(8):85-87. doi:10.3321/j.issn:1000-0976.2005.08.027 LIU Jianyi, LI Yingchuan, DU Zhimin. Mathematical model of gas/liquid bi-phase throttling prediction for gas wells with high gas/liquid ratio[J]. Natural Gas Industry, 2005, 25(8):85-87. doi:10.3321/j.issn:1000-0976.2005.08.027
[18] 刘永辉,罗程程,刘通,等. 水平气井井筒气液两相流型预测[J]. 西南石油大学学报(自然科学版),2019,41(3):107-112. doi:10.11885/j.issn.1674-5086.2018.06.11.01 LIU Yonghui, LUO Chengcheng, LIU Tong, et al. prediction of gas-liquid two-phase flow patterns in horizontal gas wells[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2019, 41(3):107-112. doi:10.11885/j.issn.1674-5086.2018.06.11.01
[19] 贾敏,李隽,李楠. 柱塞气举排水采气技术进展及应用[J]. 西部探矿工程,2015,27(7):25-28. doi:10.3969/j.issn.1004-5716.2015.07.008 JIA Min, LI Jun, LI Nan. The progress and application of drainage gas recovery technology by plunger gas lift[J]. West-China Exploration Engineering, 2015, 27(7):25-28. doi:10.3969/j.issn.1004-5716.2015.07.008
[20] 殷庆国,刘方,贺杰新,等. 柱塞气举排水采气工艺技术研究与应用[J]. 石油机械,2018,46(9):69-74. doi:10.16082/j.cnki.issn.1001-4578.2018.09.014 YIN Qingguo, LIU Fang, HE Jiexin, et al. Study and application of plunger gas lift for water drainage and gas recovery technology[J]. China Petroleum Machinery, 2018, 46(9):69-74. doi:10.16082/j.cnki.issn.1001-4578.2018.09.014
[21] 赵彬彬,李丽,白晓弘,等. 水平井速度管柱排水采气技术研究与试验[J]. 石油机械,2018,46(1):88-91,99. doi:10.16082/j.cnki.issn.1001-4578.2018.01.017 ZHAO Binbin, LI Li, BAI Xiaohong, et al. Research and test on water drainage gas recovery velocity string technology for horizontal well[J]. China Petroleum Machinery, 2018, 46(1):88-91, 99. doi:10.16082/j.cnki.issn.1001-4578.2018.01.017