第39参第1期 2017年1月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2017)01010304
DOI:10.13639/j.odpt.2017.01.020
常压页岩气井自生气气举技术
张宏录’谭均龙’李艺玲】王海燕
1.中石化华东油气分公司工程院；2.中石化华北工程公司河南钻井分公司
Vol. 39 No. 1
Jan.2017
引用格式：张宏录，谭均龙，李艺玲，王海蒸.常压页卷气井自生气气举技术[J].石油钻采工艺，2017,391)：103-106
摘要：针对常压页岩气藏压后初期不具备自喷生产条件及电潜承频繁卡汞停机问题，研究了常压页岩气并自生气气举技术。利用本井自生气作为气源，通过气举降低管柱内液体密度的原理，实现了常压页岩气并连续性排采。介绍了自生气气举并口流程和气举工艺管柱，进行了气井注气压力敏感性分析和气举排液采气工艺设计。PYHF-3井现场试验表明，该井播施后日产液51.37m，日产气17424.65m。常压页岩气井自生气气举技术将为常压页岩气并的连续性排采提供新的技术支持
关键词：常压页岩气藏；自生气；气举；排液采气
中图分类号：TE37
文献标识码：B
Gas lift technology about authigenic gas of atmospheric shale gas wel
ZHANG Honglu', TAN Junlong', LI Yiling', WANG Haiyan
1. Engineering Institrde, SINOPEC East China Oil & Gas Company, Nanjing 210031, Jianglr, China 2. Henan Drilling Compamy, SINOPEC North China Engineering Company, Nanyzng 473000, He'nan, Chinc
Citation: ZHANG Honglu, TAN Junlong, LI Yiling, WANG Haiyan. Gas lift technology about authigenic gas of atmospheric shale gas well [ J ] . Oil Drilling & Production Technology, 2017, 39(1): 103-106.
Abstract: After fracturing stimulation, atmospheric shale gas reservoirs cannot realize flowing production and electric submers-se aae o pase ooaa se a sarioad asa aos o as a e pados e as anai e sdnd a of atmospheric shale gas well was investigated. The authigenic gas of one well is taken as the gas source. Atmospheric shale gas wells[earoo pe ssarord peaa l sen o sa q ssuas id pbijo asap eaaap q snono peanpord string of authigenic gas lift were introduced. Then, sensitivity analysis was performed on the gas injection pressure of gas lift wells, and drainage gas recovery technology of gas lift was designed. This technology was tested on site in Well PYHF-3. It is shown that after its application, daily liquid production is 51.37 m’ and daily gas production is 17 424.65 m’. This gas lift technology based on authigenic gas of atmospheric shale gas well can provide new technical support for the continuous production of atmospheric shale gas wells.
Key words: atmospheric shale gas reservoir; authigenic gas; gas lift; drainage gas recovery
彭水区块位于四川盆地与雪峰隆起之间的武陵褶皱带上，目前已完钻页岩气水平并4口，从完钻井注人/压降测试结果来看，彭水区块地层压力系数为 0.92~0.96，属常压-低压页岩气藏11]，水平井经压裂改造后，地层压力迅速下降，无法直接实现自喷【2]，必须借助人工举升方式进行排采（3]。彭水区块前
期的排采方式为电潜泵排水采气、氮气气举排水采气[4]、同心管射流泵排水采气3，但每种排水采气工艺都有一定的缺点。电潜泵排水采气因地层产液量低、地层出砂等原因，造成电潜泵频繁停机，例如： PYHF-3并自2013年投产至今共经历了2次检泵作业、3次解堵作业，主要原因是在生产过程中，因地层
第一作者：张宏录（1966-),1989年毕业于江汉石油学院来油工程专业，2007年获长江大学石油天然气专业工程硕士学位，现从事来
油采气工艺研究及推广工作。通讯地址：(210031)江苏省南京市浦口区新马路182号华东沟气分公司工程院。电话：025-58875387。 E-mail; zhl5456@sina.com
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