两级同步回转压缩机排水采气技术应用研究
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摘要
苏里格气田进入开发中后期,出现气井携液能力下降、井筒积液排出困难现象,导致复产稳产难度大的问题,严重影响气井正常生产。结合同步回转压缩机气液混输的特点,采取两级增压,对积液井实施连续气举、增大生产压差、排出井筒积液的排水采气工艺;以气井流入、流出曲线为基础,分析了排水采气机理;分析了气井在压缩机连续气举工艺下的生产数据,从增产效果、适用性、经济性及同类工艺对比四个方面进行了工艺评价;提出了压缩机装置以"高压力、大排量、高度集成"的思路继续优化发展的建议。研究结果对苏里格气田中后期稳产提供了有效思路。
At present, Sulige Gas Field enters the middle and later stages of development, the issues of difficult gas recovery due to reduction of gas well liquid carrying capacity, difficult liquid loading and drainage have been exposed, which seriously affects the normal production of gas wells. Combined with the characteristics of multiphase transportation of synchronous rotary compressor, the process of two-stage compression is adopted to carry out the continuous gas lift, increasing production pressure difference and drainage in well bore.Based on the inflow and outflow curves of gas well, the mechanism of drainage and gas recovery is analyzed, and the production data of gas well under the continuous gas lift process of compressor are analyzed too. The process is evaluated from four aspects: the effect of increasing production, the applicability, the economy and the comparison with similar processes. It is proposed to continue to develop the compressor with the idea of"large displacement, high speed and high integration". The research results provide effective ideas for stable production in the middle and later stages of Sulige Gas Field development.
At present, Sulige Gas Field enters the middle and later stages of development, the issues of difficult gas recovery due to reduction of gas well liquid carrying capacity, difficult liquid loading and drainage have been exposed, which seriously affects the normal production of gas wells. Combined with the characteristics of multiphase transportation of synchronous rotary compressor, the process of two-stage compression is adopted to carry out the continuous gas lift, increasing production pressure difference and drainage in well bore.Based on the inflow and outflow curves of gas well, the mechanism of drainage and gas recovery is analyzed, and the production data of gas well under the continuous gas lift process of compressor are analyzed too. The process is evaluated from four aspects: the effect of increasing production, the applicability, the economy and the comparison with similar processes. It is proposed to continue to develop the compressor with the idea of"large displacement, high speed and high integration". The research results provide effective ideas for stable production in the middle and later stages of Sulige Gas Field development.
引文
[1]屈宗长.同步回转式压缩机的几何理论[J].西安交通大学学报,2003,37(7):731-733.
[2]杨旭,屈宗长,吴裕远.同步回转式混输泵的工作原理与动力特性研究[J].西安交通大学学报,2010,44(5):60-65.
[3] ZHOU H,QU ZC,YANG H,et al. Dynamic model and numer-ical simulation for synchronal rotary compressor[J]. Journal of Fluids Engineering-Transactions of the ASME,2009,131(4):1-9.
[4]惠艳妮,田伟,杨亚聪,等.苏里格气田天然气压缩机气举方式研究[J].石油化工应用,2012,31(12):89-91.
[5]雷登生,杜志敏,单高军,等.气藏水平井携液临界流量计算[J].石油学报,2010,31(4):637-639.
[6]刘子兵,薛岗,刘鹏超.苏里格气田单井排水增产新模式探讨[J].石油工程建设,2015,41(3):54-57,65.
[7]张春,任振华,张金波,等.苏里格气田同步回转增压工艺技术应用研究[J].石油机械,2017,45(2):88-92.
[8]詹姆斯·利,亨利·尼肯斯,迈克尔·韦尔斯.气井排水采气[M].北京:石油工业出版社,2009:25-32.
[9]廖锐全,曾庆恒,杨玲.采气工程[M]. 2版.北京:石油工业出版社,2012:45-69.
[2]杨旭,屈宗长,吴裕远.同步回转式混输泵的工作原理与动力特性研究[J].西安交通大学学报,2010,44(5):60-65.
[3] ZHOU H,QU ZC,YANG H,et al. Dynamic model and numer-ical simulation for synchronal rotary compressor[J]. Journal of Fluids Engineering-Transactions of the ASME,2009,131(4):1-9.
[4]惠艳妮,田伟,杨亚聪,等.苏里格气田天然气压缩机气举方式研究[J].石油化工应用,2012,31(12):89-91.
[5]雷登生,杜志敏,单高军,等.气藏水平井携液临界流量计算[J].石油学报,2010,31(4):637-639.
[6]刘子兵,薛岗,刘鹏超.苏里格气田单井排水增产新模式探讨[J].石油工程建设,2015,41(3):54-57,65.
[7]张春,任振华,张金波,等.苏里格气田同步回转增压工艺技术应用研究[J].石油机械,2017,45(2):88-92.
[8]詹姆斯·利,亨利·尼肯斯,迈克尔·韦尔斯.气井排水采气[M].北京:石油工业出版社,2009:25-32.
[9]廖锐全,曾庆恒,杨玲.采气工程[M]. 2版.北京:石油工业出版社,2012:45-69.