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Natural Gas Exploration and Development >

2024 , Vol. 47 >Issue 4: 112 - 118

DOI: https://doi.org/10.12055/gaskk.issn.1673-3177.2024.04.013

GASFIELD DEVELOPMENTGASFIELD DEVELOPMENT

Air lift technologies and their application to deep sour gas wells, Sichuan-Chongqing area

  • ZHANG Ting ,
  • YU Yang ,
  • WANG Guo ,
  • PENG Yang ,
  • DONG Zonghao
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  • Engineering Technology Research Institute, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan 610017, China

Revised date: 2024-05-28

  Online published: 2024-09-30

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Abstract

Deep carbonate gas reservoirs are dedicated to 59% of natural-gas resources in Sichuan Basin. Widely affected by water invasion, the developed reservoirs feature high temperature and pressure, sulfur occurrence and complex wellbore conditions in addition to deep burial depth, leading to difficulties in their air lift, like shortage of design methods and tools in poor performance. Thus, covering air lift in deep wells with high pressure and drainage gas recovery without any workover, a series of new technologies of drainage gas recovery have been created for these deep sour gas wells after plenty of technical breakthroughs and practices on the design optimization, prepared high-pressure lift valve and drainage gas recovery. Results show that (i) consulted the design of conventional air lift and introduced the liquid absorption index, a method of air lift is built for deep wells with high pressure based on coupled formation-borehole flow. It may increase top valves in the depth of setting, reduce both lift and laying-out valves by 60%, and eliminate interference between valves; (ii) with the nitrogen-charged pressure of 35 MPa and the resistance to external pressure of 90 MPa, a high-pressure and corrosion-resistant lift valve is manufactured by valve optimization, which meets the requirements of combined acidizing and air lift together with long-term downhole operation at the well depth less than or equal to 6,000 m; and (iii) one gas lift packer with one-way injection channel as the core is planned to construct one-way process channel, and then the other packer with self-sealing and suspension as the core is also mapped out for this channel reconstruction. And the developed preset, isolated and span-separated drainage gas recovery tools meet technical demands of water drainage when permanent packers are used in different stages of completed wells, and drainage gas recovery without workover comes true. These air lift technologies have been applied to more than 300 deep sour gas wells in Sichuan-Chongqing area, whose the depth excesses 6,000 m and the maximum displacement of 650 m3/d, respectively. They can solve problems on the drainage gas recovery in deep sour wells with high pressure in this area.

Key words： Deep sour gas well; Air lift; Design method; Drainage gas recovery tool; High-pressure lift valve

Cite this article

ZHANG Ting , YU Yang , WANG Guo , PENG Yang , DONG Zonghao . Air lift technologies and their application to deep sour gas wells, Sichuan-Chongqing area[J]. Natural Gas Exploration and Development, 2024 , 47(4) : 112 -118 . DOI: 10.12055/gaskk.issn.1673-3177.2024.04.013

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References

[1] 胡勇, 彭先, 李骞, 等. 四川盆地深层海相碳酸盐岩气藏开发技术进展与发展方向[J]. 天然气工业, 2019, 39(9): 48-57.
HU Yong, PENG Xian, LI Qian, et al.Progress and development direction of technologies for deep marine carbonate gas reservoirs in the Sichuan Basin[J]. Natural Gas Industry, 2019, 39(9): 48-57.
[2] 马新华. 四川盆地天然气发展进入黄金时代[J]. 天然气工业, 2017, 37(2): 1-10.
MA Xinhua.A golden era for natural gas development in the Sichuan Basin[J]. Natural Gas Industry, 2017, 37(2): 1-10.
[3] 马新华, 杨雨, 文龙, 等. 四川盆地海相碳酸盐岩大中型气田分布规律及勘探方向[J]. 石油勘探与开发, 2019, 46(1): 1-13.
MA Xinhua, YANG Yu, WEN Long, et al.Distribution and exploration direction of medium- and large-sized marine carbonate gas fields in Sichuan Basin, SW China[J]. Petroleum Exploration and Development, 2019, 46(1): 1-13.
[4] 贾爱林, 闫海军, 李建芳. 中国海相碳酸盐岩气藏开发理论与技术[M]. 北京:石油工业出版社, 2017.
JIA Ailin, YAN Haijun, LI Jianfang.Development Theories and Technologies of Marine Carbonate Gas Reservoirs in China[M]. Beijing: Petroleum Industry Press, 2017.
[5] 杨光, 汪华, 沈浩, 等. 四川盆地中二叠统储层特征与勘探方向[J]. 天然气工业, 2015, 35(7): 10-16.
YANG Guang, WANG Hua, SHEN Hao, et al.Characteristics and exploration prospects of Middle Permian reservoirs in the Sichuan Basin[J]. Natural Gas Industry, 2015, 35(7): 10-16.
[6] 凡田友, 江林, 聂权, 等. 安岳气田高石梯区块下寒武统龙王庙组气藏开发潜力评价[J]. 天然气勘探与开发, 2021, 44(2): 44-55.
FAN Tianyou, JIANG Lin, NIE Quan, et al.Evaluation on development potential in the Lower Cambrian Longwangmiao Formation, Gaoshiti block, Anyue gasfield, Sichuan Basin[J]. Natural Gas Exploration and Development, 2021, 44(2): 44-55.
[7] 张玺华, 田兴旺, 杨岱林, 等. 四川盆地海相碳酸盐岩储层成因及特征[J]. 天然气勘探与开发, 2021, 44(3): 1-10.
ZHANG Xihua, TIAN Xingwang, YANG Dailin, et al.Genesis and characteristics of marine carbonate reservoirs in Sichuan Basin[J]. Natural Gas Exploration and Development, 2021, 44(3): 1-10.
[8] 贾爱林, 闫海军, 不同类型典型碳酸盐岩气藏开发面临问题与对策[J]. 石油学报, 2014, 35(3): 521-527.
JIA Ailin, YAN Haijun.Problems and countermeasures for various types of typical carbonate gas reservoirs development[J]. Acta Petrolei Sinica, 2014, 35(3): 521-527.
[9] 贾爱林, 闫海军, 郭建林, 等. 不同类型碳酸盐岩气藏开发特征[J]. 石油学报, 2013, 34(5): 914-923.
JIA Ailin, YAN Haijun, GUO Jianlin, et al.Development characteristics for different types of carbonate gas reservoirs[J]. Acta Petrolei Sinica, 2013, 34(5): 914-923.
[10] 张宁宁, 何登发, 孙衍鹏, 等. 全球碳酸盐岩大油气田分布特征及其控制因素[J]. 中国石油勘探, 2014, 19(6): 54-65.
ZHANG Ningning, HE Dengfa, SUN Yanpeng, et al.Distribution patterns and controlling factors of giant carbonate rock oil and gas fields worldwide[J]. China Petroleum Exploration, 2014, 19(6): 54-65.
[11] 冯曦, 彭先, 李隆新, 等. 碳酸盐岩气藏储层非均质性对水侵差异化的影响[J]. 天然气工业, 2018, 38(6): 67-75.
FENG Xi, PENG Xian, LI Longxin, et al.Influence of reservoir heterogeneity on water invasion differentiation in carbonate gas reservoirs[J]. Natural Gas Industry, 2018, 38(6): 67-75.
[12] 闫海军, 贾爱林, 郭建林, 等. 龙岗礁滩型碳酸盐岩气藏气水控制因素及分布模式[J]. 天然气工业, 2012, 32(1): 67-70.
YAN Haijun, JIA Ailin, GUO Jianlin, et al.Gas-water controlling factors and distribution models of reef flat carbonate rock gas reservoirs in the Longgang gas field, Sichuan Basin[J]. Natural Gas Industry, 2012, 32(1): 67-70.
[13] 冉丽君, 罗静, 李旭成, 等. 川西北部双鱼石区块栖霞组气藏水侵特征及开发技术对策[J]. 天然气勘探与开发, 2022, 45(4): 55-64.
RAN Lijun, LUO Jing, LI Xucheng, et al.Water-invasion characteristics and countermeasures on gas reservoirs of Qixia Formation, Shuangyushi block, northwestern Sichuan Basin[J]. Natural Gas Exploration and Development, 2022, 45(4): 55-64.
[14] 何东博, 闫海军, 杨长城, 等, 安岳气田灯影组四段气藏特征及开发技术对策[J]. 石油学报, 2022, 43(7): 977-988.
He Dongbo, Yan Haijun, Yang Changcheng, et al.Gas reservoir characteristics and technical countermeasures for development in the fourth Member of Dengying Formation in Anyue gas field[J]. Acta Petrolei Sinica, 2022, 43(7): 977-988.
[15] 闫海军,邓惠,万玉金,等,四川盆地磨溪区块灯影组四段强非均质性碳酸盐岩气藏气井产能分布特征及其对开发的指导意义[J].天然气地球科学,2020,31(8):1152-1160.
YAN Haijun, DENG Hui, WAN Yujin, et al.The gas well productivity distribution characteristics in strong heterogeneity carbonate gas reservoir in the fourth member of Dengying Formation in Moxi area, Sichuan Basin[J]. Natural Gas Geoscience. 2020, 31(8): 1152-1160.
[16] 李玉飞, 佘朝毅, 刘念念, 等. 龙王庙组气藏高温高压酸性大产量气井完井难点及其对策[J]. 天然气工业, 2016, 36(4): 60-64.
LI Yufei, SHE Chaoyi, LIU Niannian, et al.Completion difficulties of HPHT and high-flowrate sour gas wells in the Longwangmiao Fm gas reservoir, Sichuan Basin, and corresponding countermeasures[J]. Natural Gas Industry, 2016, 36(4): 60-64.
[17] 卢齐, 林轶斌, 赵益秋. 永久式封隔器完井技术在龙王庙气藏开发井中的应用[J]. 钻采工艺, 2016, 39(2): 39-42.
LU Qi, LIN Yibin, ZHAO Yiqiu.Application of permanent packer completion technology in Sichuan Longwangmiao gas reservoir[J]. Drilling & Production Technology, 2016, 39(2): 39-42.
[18] 熊昕东, 龙刚, 熊晓东, 等. 高温高压含硫气井完井技术现状及发展趋势[J]. 天然气技术与经济, 2011, 5(2): 57-61.
XIONG Xindong, LONG Gang, XIONG Xiaodong, et al.Completion technologies for HTHP gas wells with H2S[J]. Natural Gas Technology and Economy, 2011, 5(2): 57-61.
[19] 黎洪珍, 刘萍, 刘畅, 等. 川东地区高含硫气田安全高效开发技术瓶颈与措施效果分析[J]. 天然气勘探与开发, 2015, 38(3): 43-47.
LI Hongzhen, LIU Ping, LIU Chang, et al.Technologic bottleneck of effectively developing high-sour gasfields in eastern Sichuan Basin and its countermeasure effect[J]. Natural Gas Exploration and Development, 2015, 38(3): 43-47.
[20] 叶长青, 熊杰, 康琳洁, 等. 川渝气区排水采气工具研制新进展[J]. 天然气工业, 2015, 35(2): 54-58.
YE Changqing, XIONG Jie, KANG Linjie, et al.New progress in the R & D of water drainage gas recovery tools in Sichuan and Chongqing gas zones[J]. Natural Gas Industry, 2015, 35(2): 54-58.
[21] 易劲, 顾友义, 潘云兵. 油管穿孔气举排水采气技术[J]. 石油钻采工艺, 2014, 36(3):103-125.
YI Jin, GU Youyi, PAN Yunbing.Drainage gas recovery technology by tubing perforated gas-lift drainage[J].Oil Drilling & Production Technology, 2014, 36(3):103-125.
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