A new evaluation method of well productivity

  • TAO Wenfang ,
  • ZHU Xiaomin ,
  • FAN Leyuan ,
  • CHEN Hehe
Expand
  • School of Petroleum Engineering, Southwest Petroleum University, Chengdu 610599, China

Online published: 2014-06-06

Abstract

Productivity evaluation of wells is completed through productivity test of wells. Conventional productivity tests are accomplished at well bottom through measuring production rate and flowing pressure of well bottom in order to determine the productivity index of wells. Productivity index is a parameter to evaluate productivity of wells. However, some wells are difficult to measure their bottom pressure and the productivity index cannot be obtained. In order to evaluate the productivity of wells effectively, productivity evaluation method was improved with measurement at wellhead other than at well bottom. Test of well productivity at wellhead is completed through the determination of nozzle flow equation, which can determine the nozzle productivity index to evaluate the productivity of wells. The nozzle productivity test is completed through measuring flow rate of wells and the size of choke nozzle, which can calculate the nozzle productivity index. The nozzle productivity test can be done simultaneously with the production of wells without any negative effect on the production of oil and gas and any additional cost. Nozzle productivity test is quite simple and practical to the conventional test at well bottom.

Cite this article

TAO Wenfang , ZHU Xiaomin , FAN Leyuan , CHEN Hehe . A new evaluation method of well productivity[J]. Lithologic Reservoirs, 2014 , 26(3) : 7 -10 . DOI: 10.3969/j.issn.1673-8926.2014.03.002

References

[1] 成良丙,杨军,冯顺彦,等.多层复合油藏产能预测及主力层优选技术[J].岩性油气藏,2013,25(6):117-121.
[2] 袁淋,李晓平,张璐,等.水平井稳态产能公式对比与分析[J].岩性油气藏,2013,25(6):127-132.
[3] 王大为,李晓平.水平井产能分析理论研究进展[J].岩性油气藏,2011,23(2):118-123.
[4] 李颖川.采油工程[M].第2 版.北京:石油工业出版社,2009:1-17,38-40.
[5] 王鸿勋,张琪.采油工艺原理[M].第2 版.北京:石油工业出版社,1989:1-21,48-52.
[6] 李传亮.油藏工程原理[M].第2 版.北京:石油工业出版社,2011:198-208.
[7] 翟云芳.渗流力学[M].第2 版.北京:石油工业出版社,2003:21-22.
Outlines

/