Reservoir Evaluation and Development ›› 2018, Vol. 8 ›› Issue (4): 63-67.

• Petroleum Engineering • Previous Articles     Next Articles

Optimization of horizontal well refracturing technology in tight reservoirs

Song Liyang,Wang Jiwei,Li Fengxia,Liu Changyin,Su Jianzheng,Zhang Rusheng   

  1. Gas Reservoirs Production of Sinopec Petroleum Exploration and Production Research Institute, Beijing 100083, China
  • Received:2017-07-13 Online:2018-08-26 Published:2018-11-28


In order to improve the refracturing effects of the tight reservoirs and the economic benefits, we provided the optimization methods for the well and layer selection and fracturing design in the refracturing process of the tight wells: the multi-level fuzzy comprehensive evaluation method and artificial neural network method were applied to study the influence of the geological and engineering factors on the refracturing effect, so that the well and layer selection criteria of refracturing for the horizontal wells in tight reservoirs could be determined. The stress field variation and fracture extension rule were studied, and the fracturing material for tight reservoirs was provided. Based on the field production data, 3D fracturing simulation software was used to optimize the refracturing parameters of 3 target horizontal wells. The studying results can scientifically guide the application of refracturing technology in tight reservoir wells.

Key words: tight reservoir, refracturing, horizontal well

CLC Number: 

  • TE357