页岩气井排水采气工艺综合优选方法

钻采工艺 ›› 2022, Vol. 45 ›› Issue (2): 154-159.

页岩气井排水采气工艺综合优选方法

王辉¹，周朝^2,3，周忠亚¹，何祖清^2,3，陈明忠⁴

1 中国石化江汉油田 2 中国石化石油工程技术研究院 3 页岩油气富集机理与有效开发国家重点实验室 4 中国石油川庆钻探公司井下作业公司

出版日期:2022-03-25 发布日期:2022-04-28
通讯作者: 周朝
作者简介:王辉（1971-）硕士，高级工程师，1995年毕业于西南石油大学!现从事油田开发管理工作。
基金资助:
中国石化“十条龙”“项目复兴侏罗系陆相页岩油气采油气技术”（编号：P21078-8）；中国石化科技部攻关项目“涪陵页岩气井排水采气技术研究”（编号：P19025-3）。

Comprehensive Optimal Selection Method of Drainage Gas Recovery Technology for Shale Gas Horizontal Wells

WANG Hui¹，ZHOU Chao^2,3，ZHOU Zhongya¹，HE Zuqing^2,3，CHEN Mingzhong⁴

1.Sinopec Jianghan Oilfield, Qianjiang, Hubei 433124, China; 2. Sinopec Research Institute of Petroleum Engineering, Beijing, 102206, China; 3. State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing, 102206, China;4. CCDC Downhole Service Company, Chengdu, Sichuan 610051, China

Online:2022-03-25 Published:2022-04-28
Contact: ZHOU Chao

摘要/Abstract

摘要： 目前排水采气工艺的选择采用现场经验法和宏观控制图版法，考虑因素欠缺，工艺实施效果较差，文章根据压力供给与临界携液原则，结合经济效益分析，开展了页岩气井排水采气工艺综合优选。根据误差分析优选Mukherjee-Brill两相流模型用于计算页岩气井筒压力分布，确定排水采气工艺的压力适用界限；考虑产液量、液滴变形和造斜率变化引起的液滴碰撞，建立页岩气井全井筒临界携液流量模型，确定排水采气工艺的携液适用界限，最终建立页岩气井排水采气工艺综合优选方法。实例分析表明，页岩气井临界携液流量模型的预测精度达94.1%，页岩气井排水采气工艺综合优选方法能够实现“一井一策”的排水采气工艺定量优选，优选后的排水采气工艺具有良好的排液增产效果与经济效益。

关键词: 页岩气, , 水平井, , 积液, , 排水采气, , 工艺优选

Abstract: Current methods of selecting drainage gas recovery technology depend on experience and macroscopic control chart, which fail to consider influence factors comprehensively and lead to poor drainage effect. Therefore, a comprehensive optimal selection method of drainage gas recovery technology in shale gas horizontal wells is developed according to the pressure supply principle, the critical flow rate principle and the economic benefit analysis. The pressure application boundary of drainage gas recovery technology is determined, and Mukherjee-Brill’s model is selected to calculate the wellbore pressure profiles in shale gas horizontal wells based on error analysis. The liquid carrying application boundary of drainage gas recovery technology is determined, and a new critical flow rate model for the whole wellbore of shale gas horizontal wells is established, which takes into account the liquid flow rate, the liquid-droplet deformation and the liquid-droplet energy loss caused by the change of buildup rate. Then, the comprehensive optimal selection method of drainage gas recovery technology in shale gas horizontal wells is established. Field case analysis shows that the precision of liquid loading prediction of the new critical flow rate model is 94.1%. The “One Strategy for One Well” comprehensive optimal selection method of drainage gas recovery technology could optimize drainage gas recovery technology quantitatively. The optimal drainage gas recovery technology has good drainage effect and economic benefit.

Key words: shale gas, horizontal well, liquid loading, drainage gas recovery, optimal selection of technology

王辉, 周朝, 周忠亚, 何祖清, 陈明忠. 页岩气井排水采气工艺综合优选方法[J]. 钻采工艺, 2022, 45(2): 154-159.

WANG Hui, ZHOU Chao, ZHOU Zhongya, HE Zuqing, CHEN Mingzhong. Comprehensive Optimal Selection Method of Drainage Gas Recovery Technology for Shale Gas Horizontal Wells[J]. Drilling & Production Technology, 2022, 45(2): 154-159.

参考文献

[1] 夏海帮，袁航，岑涛. 彭水区块页岩气生产井排采方式研究与应用[J].石油钻探技术，2014，42(4):21-26.
XIA Haibang，YUAN Hang, CEN Tao. Study and application of drainage methods for shale gas wells in Pengshui Block[J]. Petroleum Drilling Techniques，2014，42(4):21-26.
[2] 冯强汉，李建奇，魏美吉，等.苏里格气田低产低效关美异化管理对策了.天然气工业，2016，36(11):28-36.
FENG Qianghan，LI Jianci，WEI Meiji, et al.Differentiated management strategies on low-yield and low-efficiency wells in the Sulige Gas Field,Ordos Basin[J].Natural Gas Industry, 2016, 36( 11): 28-36.
[3] 刘捷，廖锐全，陈进，等.新疆油田气井排液采气工艺优选方法[J].特种油气藏, 2015, 22(1):141-143.
LIU Jie, LIAO Ruiquan,CHEN Jin, et al. Gas well liquid drainage gas recovery technology optimization in Xinjiang Oilfield[ J]. Special Oil & Gas Reservoirs，201522(1): 141-143.
[4] 王景芹.排水采气技术优选三维图版[J].特种油气藏,2018, 25( 1):116- 120.
WANG Jingqin. Optimized 3D charts for drainage gas production technologies[J]. Special Oil & Gas Reservoirs.2018, 25(1): 116-120.
[5] BEGGS D H.BRILL J P. A study of Two-phase flow in inclined pipes [J]. Journal of Petroleum Technology,1973, 25(5): 607-617.
[6] BAKER A, NIELSEN K. GABB A. Pressure loss, liquid-holdup calculations developed[J]. Oil and Gas Journal, 1988, 86( 11): 55-59.
[7] DUKLER A E. WICKS III M. CLEVELAND R G. Frictional pressure drop in two-phase flow: B. An approach through similarity analysis[J].AIChE Journal,1964,10(1): 44-51.
[8] FLANIGAN O. Effect of uphill flow on pressure drop in design of two-phase gathering systems[J]. Oil and Gas Journal, 1958, 56(3): 132-141.
[9] MUKHERJEE H,BRILL J P. Liquid holdup correlations for inclined two-phase flow[J1. Journal of Petroleum Technology，1983 35(5): 1003-1008.
[10] 刘通,任桂蓉,钟海全,等.泡沫排液采气井筒多相流机理模型[J].西南石油大学学报(自然科学版).2014, 36(5): 136-140
LIU Tong,REN Guirong,ZHONG Haiquan, et al. A mechanism model for multiphase flow in gas wells using foam dewatering technologyJ1. Journal of Southwest Petroleum University(Science & Technology Edition)2014, 36(5): 136-140.
[11] 刘华敏,李牧,刘乔平,等.涪陵页岩气田柱塞气举工艺研究与应用[J]. 石油钻探技术，2020，48(3):102- 107.
LIU Huamin,LI Mu, LIU Qiaoping, et al. Research and application of plunger gas lift technology in the Fuling shale gas field[J].Petroleum Drilling Techniques, 2020,48(3): 102- 107.
[12] ZHOU Chao,WU Xiaodong，LI Huachang,et al. Optimization of methods for liquid loading prediction in deep condensate gas wells[ J1. Journal of Petroleum Science and Engineering，2016，146:71-80.
[13] EL FADILI Y, SHAH S. A new model for predicting critical gas rate in horizontal and deviated wells [J].Journal of Petroleum Science and Engineering，2017， 150:154- 161.
[14] SHI Juntai, SUN Zheng，LI Xiangfang. Analytical models for liquid loading in multifractured horizontal gas wells[J]. SPE Journal, 2016, 21(2): 471-487.
[15] 刘永辉, 吴朋勃, 罗程程, 等.泡沫排水采气适用界限的实验研究[J].深圳大学学报(理工版)2020，37(5): 490-496.
LIU Yonghui,WU Pengbo,LUO Chengcheng,et al.Experimental study on the applicable range of surfactant injection technology [J]. Journal of Shenzhen University (Science & Engineering), 2020, 37( 5): 490-496.