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An investigation of fracture geometry in hydraulic fracturing on a gas reservoir well production enhancement

Baghbanan, A. R ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1080/10916466.2011.563255
  3. Abstract:
  4. Utilizing improved production methods have been always challenging in upstream industries. Nowadays, hydraulic fracturing is one of the most prestigious mechanical methods. Application of this method is in wells with low productivity index. Hydraulic fracturing efficiency depends on various factors, such as fracture geometry, fluid composition, and stress distribution. But some of them would be ignored, such as fracture geometry, which is neglected due to nongravity and lack of investigation of DFN statistical population assumption. The authors develop a more comprehensive methodology based on fracture geometry and aim to model one of the gas reservoirs in Iran that is naturally fractured by using well-known commercial software. Based on the methodology, first, they intend to calculate its natural production rate then develop some fractures in diverse directions and calculate the induced production rate. By using a fair comparison, they examine the effect of this method on amount of production rate increment. And also extract the optimum fracture geometry (azimuth and aperture). As the conclusion the authors find that with the fracture initiated in a certain degree azimuth and aperture compared to natural fracture, the best amount of production rate increment can be achieved. These results are acceptable based on comparison to field data
  5. Keywords:
  6. Fracture geometry ; Injection pressure ; Numerical modeling ; Stress distribution ; Commercial software ; Fluid composition ; Fracture geometries ; Injection pressures ; Mechanical methods ; Natural productions ; Production methods ; Productivity index ; Geometry ; Hydraulic fracturing ; Numerical models ; Population statistics ; Stress concentration ; Fracture
  7. Source: Petroleum Science and Technology ; Vol. 32, issue. 2 , 2014 , pp. 150-157 ; ISSN: 10916466
  8. URL: http://www.tandfonline.com/doi/abs/10.1080/10916466.2011.563255#.VdAw_LWD4_4