Reservoir Evaluation and Development ›› 2018, Vol. 8 ›› Issue (6): 62-69.

• Petroleum Engineering • Previous Articles     Next Articles

Study and application of length of horizontal wells in lens-like thin-layered bottom-water reservoirs

Wang Jingpeng1,Cao Wenjiang2,Shi Yi1,Fan Xibin1,Qiu Zigang1   

  1. 1. Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China
    2. Petroleum Engineering School, Southwest Petroleum University, Chengdu, Sichuan 610500, China
  • Received:2017-11-11 Online:2018-12-26 Published:2018-12-13


The reasonable length of horizontal wells for lens-like thin-layered bottom-water reservoirs has been a question, and there were limited studies in the literature. Aiming at the study of a specific low amplitude, moderate-high permeability, thin lens-like sandstone reservoir with bottom-water in Hutubi river layer in Luliang oilfield of Xinjiang, by using a variety of methods in geology, drilling, reservoir engineering and numerical simulation, and combined with the effects of horizontal wells during the reservoir development, we demonstrated the relation respectively between various factors of horizontal well length and wellbore pressure loss, reservoir adaptability, and development of oil drilling rate effects of such reservoir. Then, we proposed the range of the reasonable length of horizontal wells considering both theoretically and practically. The results showed good reliability and applicability, providing technical reference for the research and application of horizontal wells in similar bottom-water reservoirs.

Key words: thin-layered, lens-like, moderate-high permeability, sandstone bottom-water reservoir, horizontal well length

CLC Number: 

  • TE243