| 川东石炭系气藏排水采气工艺技术及其应用 |
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| 引用本文： | 向建华,高泽立,冯小波,向兵,刘正雄.川东石炭系气藏排水采气工艺技术及其应用[J].天然气工业,2007,27(9):87-90. |
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| 作者姓名： | 向建华 高泽立 冯小波 向兵 刘正雄 |
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| 作者单位： | 1.中国石油西南油气田公司采气工程研究院；2.中国石油西南油气田公司蜀南气矿；3.中国石油西南油气田公司重庆气矿；4.四川石油管理局能源勘探开发公司 |
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| 摘 要： | 四川盆地东部石炭系气藏是中国石油西南油气田公司的主力气藏之一，经过20多年的开发，出水气井增多、开发难度加大，必须进行排水采气才能维持正常生产。由于石炭系气藏大部分生产井存在井深、地层压力系数低、温度高、静液面深、复产后井口套压高的特点，常规排水采气工艺不能满足气藏的要求。针对这些难点，研究出深井高压气举、低压深井的优选管柱、深井高温泡排三项适合石炭系气藏的排水采气工艺，并在现场十多口井上进行了试验，增产效果显著。
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| 关 键 词： | 四川盆地 东 石炭纪 气藏 气举 连续油管 泡排排液 |
TECHNOLOGY OF GAS PRODUCTION WITH HIGH WATER RATE FROM CARBONIFEROUS PERIOD FORMATION IN EAST SICHUAN BASIN |
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| XIANG Jian-hua,GAO Ze-li,FENG Xiao-bo,XIANG Bing,LIU Zheng-xiong.TECHNOLOGY OF GAS PRODUCTION WITH HIGH WATER RATE FROM CARBONIFEROUS PERIOD FORMATION IN EAST SICHUAN BASIN[J].Natural Gas Industry,2007,27(9):87-90. |
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| Authors: | XIANG Jian-hua GAO Ze-li FENG Xiao-bo XIANG Bing LIU Zheng-xiong |
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| Affiliation: | 1.Research Institute of Gas Production Engineering, PetroChina Southwest Oil and Gasfield Company; 2.South Sichuan Gas Mining, PetroChina Southwest Oil and Gasfield Company; 3.Chongqing Gas Field, PetroChina Southwest Oil and Gasfield Company;4.Energy Source Exploration and Development Company, CNPC Sichuan Petroleum |
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| Abstract: | The gas reservoirs in Carboniferous formation of East Sichuan Basin are main gas reservoirs discovered by PetroChina Southwest Oil &; Gasfield Company. After over 20 years' development, more and more gas wells are produced with high water cut. However, most wells in Carboniferous formation have considerable well depth, low formation pressure factor, high temperature, deep static fluid surface and high wellhead casing pressure after production recovery, therefore, conventional technology of gas production excluding water is not satisfactory. Directing at these characteristics, high pressure gas lift in deep wells, optimized pipe string in low pressure deep wells and high temperature foam discharge in deep wells were provided and tested with favorable production enhancement in more than ten wells. |
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