Wang Liupeng
Key Laboratory of Petroleum Engineering of the Ministry of Education, Department of Oil-Gas Development Engineering, Collage of Petroleum Engineering, China University of Petroleum-Beijing, Beijing, P.O. Box 102249, Changping Fuxue Road 18, China
Li Qi
Key Laboratory of Petroleum Engineering of the Ministry of Education, Department of Oil-Gas Development Engineering, Collage of Petroleum Engineering, China University of Petroleum-Beijing, Beijing, P.O. Box 102249, Changping Fuxue Road 18, China
Wang Zhiyue
Department of Oil-Field Development, Collage of Petroleum Engineering, Xi�an Shiyou University, Xi�an, P.P. Box 710065, Dian�zi 2nd Road 18, China
ABSTRACT
Hydraulic fracturing of horizontal well has been a principal stimulation treatment for low permeable reservoirs. Accurately calculate Fracture Initiation Pressure (FIP) is a key factor to the success of hydraulic fracturing operation for horizontal well. Conventional FIP solution model of horizontal well utilize well-bore pressure increment as the iteration step. Therefore, it has disadvantages such as slow convergence speed and lower computational precision. In this paper, a new optimization solution model is proposed for horizontal well FIP calculation. The model transforms the solving process of FIP into the searching problem of minimum objective function under nonlinear constraint condition. Optimization calculation equations for FIP for horizontal well under open hole and perforation completion is established based on the model. The solving flow chart by using outer-point-penalty function method is devised. Verification of the model is completed through calculation of an actual horizontal well data. The results show that proposed model has superiority of faster computational convergence speed and higher calculation precision than the convention models.
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How to cite this article
Wang Liupeng, Li Qi and Wang Zhiyue, 2013. Study of Horizontal Well Fracture Initiation Pressure Based on Nonlinear Constraint Model. Journal of Applied Sciences, 13: 1984-1987.
DOI: 10.3923/jas.2013.1984.1987
URL: https://scialert.net/abstract/?doi=jas.2013.1984.1987
DOI: 10.3923/jas.2013.1984.1987
URL: https://scialert.net/abstract/?doi=jas.2013.1984.1987
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