The Impact of Fracturing-fluid Cleanup And Fracture-face Damage On Gas Production

Ning, Xuewei; Marcinew, R.P.; Olsen, T.N.

doi:10.2118/95-43

Cited by 12 publications

(2 citation statements)

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“…[21][22][23][24][25][26][27] Selecting the appropriate fluid system is also essential for the success of a frac&pack treatment, and the impact of fluid selection on high-permeability fracturing has been investigated by a several authors. [28][29][30] Numerous design approaches have been suggested and several different simulators for designing highpermeability fracturing treatments are available. The main objectives of this study are to present and demonstrate an economic optimization scheme for frac&pack treatments and use this model to better understand frac&pack behavior, rather than to promote a particular fracture (propagation and leakoff) design model.…”

Section: Fracture Modeling and Calculationsmentioning

confidence: 99%

Optimization Strategies for Hydraulic Fractures in High Permeability Reservoirs

Tamir¹

2001

Proceedings of SPE Middle East Oil Show

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TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractHigh permeability fracturing, commonly referred to as a frac&pack treatment, is becoming an increasingly popular completion option for both well productivity improvement and sand control in poorly consolidated formations. This paper presents an efficient and effective economic optimization scheme for hydraulic fractures in high permeability formations. The optimization scheme incorporates global optimization algorithms that simultaneously optimize all of the treatment parameters, including fracture dimensions, while accounting for the required constraints. The scheme is not dependent on specific fracture geometry or production prediction models, and the optimization algorithms are more efficient than the approaches currently used. Parametric studies were conducted, and some general trends and guidelines were observed. Field data from frac&pack treatments were reviewed and compared to the findings of this research. A review of field data indicates that the results of our optimization scheme are realistic, confirming some of the conclusions derived from the parametric studies and suggesting that this approach can be a useful tool for designing fracture treatments in high permeability reservoirs.

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Section: Fracture Modeling and Calculationsmentioning

confidence: 99%

Optimization Strategies for Hydraulic Fractures in High Permeability Reservoirs

Tamir¹

2001

Proceedings of SPE Middle East Oil Show

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“…, Case studies for gas wells in the Cadomin formation. in the deep' b~sin area of northwestern Alberta, Canada, with permeabilities ranging from 0.065 to 1 md and fracture conductivities ranging from, 50 md"m to 200 md-m were disGussed by Ning et al 17 These. studies implied, that the effect on long-term gas production of damage due to fracture fluid invasion should be minimal.…”

mentioning

confidence: 93%

Hydraulic Fracture Stimulation of Highly Permeable Formations: The Effect of Critical Fracture Parameters on Oilwell Production and Pressure

Mathur

Ning

Marcinew

et al. 1995

Proceedings of SPE Annual Technical Conference and Exhibition

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Hydraulic fracturing of moderate to high-permeability reservoirs with short, highly conductive fractures is a technique often applied to improve well productivity through penetration beyond near wellbore damage. This paper investigates the effect of important fracture parameters (e.g., fracture half-length, fracture conductivity, and fracture-face damage) on the short-term behavior and long-term productivity of the well. The degree and extent of near wellbore damage, in addition to the fracture parameters, are varied in the sensitivity analysis. A case study from the Gulf Coast addresses the effect of these important parameters on the well response.It is evident the length and conductivity of a created hydraulic fracture have an important effect on the poststimulation performance of a well. Some of these fractures may be damaged. Damage to the proppant-pack has considerable effects, reducing the fracture conductivity. Generally fracture-face damage caused by fluid and polymer leakoff does not significantly alter long-term production, assuming the permanent reduction of absolute permeability is low (less than 90%) and provided the fracture bypasses the radial ldamage zone in the formation. When the fracture face damage is high (greater than 90%), early time well response is 237 significantly impaired by the fracturing fluid cleanup process. This has implications on the timing of poststimulation pressure transient analyses. The modeled behavior and recommendations for the design of such tests are presented.

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