Efficient Proppant Flowback Prevention Strategy Allows Production of a Multi Fractured Offshore Horizontal Well Equipped with ESP and Screenless Completion

Martocchia, Francesco; Baretti, Salvatore; Farina, Lisa; Rizza, G.; Okassa, Fabrice; Dirya, A. D.; Haaland, T. G.

doi:10.2118/169959-ms

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…Compatible experiment showed that the pH of fracturing fluid had a negative effect on proppant pack strength of resin-coated proppant. As for low temperature wells, the combination of resin-coated proppant and inert fibers was proved to be successful in controlling proppant flowback effectively [15]. Under such circumstances the curable proppant needed a chemical activator to enhance its consolidation strength.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of Proppant Flowback Control by Use of Resin-coated Proppant

Jiao,

Zhu,

Chang

et al. 2024

J. Basic Appl. Sci.

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Proppant flowback is a problem in Xinjiang oilfield. It decreases production rate of a fractured oil well, corrodes surface and downhole facilities and increases production costs. Curable resin-coated sand is a common technique to control proppant flowback. This article presents an experimental investigation whether it is feasible to control proppant flowback by use of resin-coated sand and whether resin-coated sand has a negative effect on proppant pack conductivity. It included two kinds of experiments, Proppant flowback experiment measured critical flow rate while the Proppant pack conductivity one measured proppant conductivity. The experimental results of proppant flowback show that the critical flow rate of resin-coated sand is far greater than that of common sand which means proppant flowback would not happen by resin-coated sand tail-in. Compared to Xinjiang sand conductivity, resin-coated sand conductivity is far smaller though it declines slightly which means use of resin-coated sand would lead to conductivity loss and sequentially results in production impairment. Experimental results show that it is feasible to control proppant flowback by use of resin-coated sand and resin-coated sand would affect fracture conductivity of a fractured oil well. Based on the experimental results, resin-coated proppant conductivity can be improved by use of resin-coated ceramic or liquid-resin-coated proppant. The achievements can give a direction towards how to select a resin-coated proppant and how to improve resin-coated proppant.

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Section: Introductionmentioning

confidence: 99%

Feasibility of Proppant Flowback Control by Use of Resin-coated Proppant

Jiao,

Zhu,

Chang

et al. 2024

J. Basic Appl. Sci.

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Investigation of a critical choke during hydraulic-fracture flowback for a tight sandstone gas reservoir

Huang

Zeng³

et al. 2019

Journal of Geophysics and Engineering

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Low porosity and permeability in a tight sandstone gas reservoir can cause problems during fracturing. If the fracturing fluid cannot be discharged in a timely fashion after fracturing, the fracturing fluid will move into the deep formation and result in secondary damage. Conversely, if the flowback rate of the fracturing fluid is too high, it will cause the proppant to backflow and reduce the efficiency of fracturing operation. Therefore, it is very important to control the choke sizes and flowback rates for the flowback process of a tight sandstone reservoir. In this study, a model of the time of the closed fracture considering the principle of material balance is built. Subsequently, the relationship between the wellhead pressure and the optimum diameter of the choke at different times is obtained using hydrodynamics and particle dynamics theory. Finally, the proposed optimization method is applied to an actual well from the Xinjiang tight gas reservoirs. Results show that a choke diameter can be reasonably optimized under different wellhead pressures, and that fracturing fluid flows back as much as possible and without proppant backflow. A sound design of a fracturing fluid flowback system is also provided. This study presents the mechanism of post-fracturing management and provides a better understanding of the flowback system in tight gas reservoirs.

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Efficient Proppant Flowback Prevention Strategy Allows Production of a Multi Fractured Offshore Horizontal Well Equipped with ESP and Screenless Completion

Cited by 2 publications

References 9 publications

Feasibility of Proppant Flowback Control by Use of Resin-coated Proppant

Feasibility of Proppant Flowback Control by Use of Resin-coated Proppant

Investigation of a critical choke during hydraulic-fracture flowback for a tight sandstone gas reservoir

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