Relative Productivities and Pressure Transient Modeling of Horizontal Wells with Multiple Fractures

Horne, Roland N.; Temeng, K.O.

doi:10.2118/29891-ms

Cited by 96 publications

(33 citation statements)

References 6 publications

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“…There are 4n f +4M ·n f unknown variables and 4n f +4M ·n f equations in the model (consisting of Equations (10), (11), (12), (13), (14), (15), (16), (18), (19), (20) or (21)). These equations are in a closed system, so we can solve this problem.…”

Section: Pressure Drop Equationmentioning

confidence: 99%

“…Ozkan et al [11] studied the effect of pressure drop within the horizontal section on horizontal-well responses, investigated the flux and pressure distributions along the length of the well and discussed the validity of the infinite conductivity assumption. Horne et al [12] developed analytical or semi-analytical models to describe the inflow performance and transient pressure behavior of a horizontal well with multiple hydraulic fractures and this model could be used to compare the relative productivities of multiple fractures. Lian et al [13,14] developed a reservoir model coupled with fractured horizontal well according to Green function and Newman's product principle in which the pressure drop function of the vertical-fractured horizontal well in unsteady state was concluded.…”

Section: Introductionmentioning

confidence: 99%

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A new computation model of fractured horizontal well coupling with reservoir

Lian

Cheng

Cui

2010

Numerical Methods in Fluids

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SUMMARYBased on Green's functions and Newman's product principle, pressure drop formula was derived for considering simultaneous production of fractures and horizontal wellbore in unsteady state. A reservoir/fractured horizontal well coupling model is developed for finite conductivity condition that can be solved by the combination of quasi-Newton method and PSO (Particle Swarm Optimization) algorithm. The solution of a practical example shows that lots of factors can affect the productivity of the fractured horizontal well. The number of the fractures has an optimizing range. Different fractures have different flow rates and the production in the central fracture is the lowest. The distribution of production rate in the wellbore has a wave-like shape due to the influence of fractures. The closer fractures are the lower flow rate in well segments. Considering the horizontal wellbore production, the production rates in the fractures are asymmetric and the corresponding pressure drop curve is smoother.

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Section: Pressure Drop Equationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A new computation model of fractured horizontal well coupling with reservoir

Lian

Cheng

Cui

2010

Numerical Methods in Fluids

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“…Horne and Temeng considered the interference among the fractures via the superposition of influence functions [19]. Zerzar and Bettam combined the boundary element method and Laplace transformation to deal with interaction of reservoir flow and fracture flow [20].…”

Section: Introductionmentioning

confidence: 99%

Pressure Transient Behavior of Horizontal Well with Time-Dependent Fracture Conductivity in Tight Oil Reservoirs

et al. 2017

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This work presents a discussion on the pressure transient response of multistage fractured horizontal well in tight oil reservoirs. Based on Green's function, a semianalytical model is put forward to obtain the behavior. Our proposed model accounts for fluid flow in four contiguous regions of the tight formation by using pressure continuity and mass conservation. The time-dependent conductivity of hydraulic fractures, which is ignored in previous models but highlighted by recent experiments, is also taken into account in our proposed model. We also include the effect of pressure drop along a horizontal wellbore. We substantiate the validity of our model and analyze the different flow regimes, as well as the effects of initial conductivity, fracture distribution, and geometry on the pressure transient behavior. Our results suggest that the decrease of fracture conductivity has a tremendous effect on the well performance. Finally, we compare our model results with the field data from a multistage fractured horizontal well in Jimsar sag, Xinjiang oilfield, and a good agreement is obtained.

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“…Therefore, the governing equation of every media can be derived; however, the interference among hydraulic fractures is ignored. Some scholars, including Nashawi (2006), Hegre (1991, 1994), Guo and Evans (1993), Horne and Temeng (1995), Chen and Rajagopal (1997), presented some transient analytical solutions in Laplace domain for the fracturing horizontal well with multiple finite conductivity by using sink-source integral. Some other scholars, including Al-Kobaisi and Ozkan (2004), Valk and Amini (2007), Brown et al (2011), coped with this issue using numerical difference method.…”

Section: Introductionmentioning

confidence: 99%

Pressure transient analysis of multistage fracturing horizontal wells with finite fracture conductivity in shale gas reservoirs

Dai

Jia

et al. 2016

Environ Earth Sci

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A new analytical solution of pressure transient analysis is proposed for multistage fracturing horizontal well (MFHW) with finite-conductivity transverse hydraulic fractures in shale gas reservoirs. The effects of absorption, diffusion, viscous flowing, stress sensitivity, flow convergence, skin damage and wellbore storage are simultaneously considered as well in this paper. Laplace transformation, source sink function, perturbation method and superposition principle are, respectively, employed to solve related mathematical models of reservoir system and hydraulic fracture system. And then boundary element method (BEM) is applied to couple reservoir system and hydraulic fracture system. The transient pressure is inverted from Laplace space into real time space with Stehfest numerical inversion algorithm. Based on this new solution, the distribution of transient pseudo-pressure for MFHW with multiple finite-conductivity transverse hydraulic fractures is obtained. Different flowing regimes are identified, and the effects of relevant parameters are analyzed as well. The essence of this paper is considering the effects of transient gas flowing occurrence in finite-conductivity hydraulic fractures with BEM. Compared with some existing models and numerical simulation model of shale gas reservoirs, this proposed new model can provide a relative more accurate analysis of the relevant parameters, especially for the fracture conductivity. In conclusion, this new model provides the relative accurate and comprehensive evaluation results for multistage fracturing horizontal technology.

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Relative Productivities and Pressure Transient Modeling of Horizontal Wells with Multiple Fractures

Cited by 96 publications

References 6 publications

A new computation model of fractured horizontal well coupling with reservoir

A new computation model of fractured horizontal well coupling with reservoir

Pressure Transient Behavior of Horizontal Well with Time-Dependent Fracture Conductivity in Tight Oil Reservoirs

Pressure transient analysis of multistage fracturing horizontal wells with finite fracture conductivity in shale gas reservoirs

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