Formation Damage Prevention by Using an Oil-Based Fracturing Fluid in Partially Depleted Oil Reservoirs of Western Siberia

Čikeš, Marin; Cubric, S.; Moylashov, Mekhraly

doi:10.2523/39430-ms

Cited by 3 publications

(1 citation statement)

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“…Post-fracture face damage should be minimized. To this end, attentions have been paid to frac fluid design and in particular, leakoff control additives 4 .…”

Section: Spe 82198mentioning

confidence: 99%

Near Wellbore Stimulation by Acoustic Waves

et al. 2003

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TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractReduced well productivity or injectivity is often caused by near-wellbore formation damage due to the interaction of reservoir formation with drilling and completion fluids. The problem can be further compounded by production induced formation damage. A prime example is fines migration and fines plugging of rock pores or gravel packs.High frequency sonic waves, especially ultrasonic waves have been used in many industrial applications to remove contaminants like dirt, oil, and grease from parts immersed in fluids. An obvious extension of this application is the removal of wellbore impairment by exposing it to high frequency acoustic waves. Although the concept is old, successful largescale application of acoustic well stimulation is not common.Greater understanding of the technology's applicability and limitations are essential in order to design effective downhole acoustic tool and guide successful field implementation. To this end, we have embarked on a dedicated project to mature the technology, which includes dedicated experimentation and tool design. In this paper, we focus on some key experimental results and discuss potential applications in production engineering.

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“…Post-fracture face damage should be minimized. To this end, attentions have been paid to frac fluid design and in particular, leakoff control additives 4 .…”

Section: Spe 82198mentioning

confidence: 99%

Near Wellbore Stimulation by Acoustic Waves

et al. 2003

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Application of Modified Ethylene Glycol Fracturing Fluid in Strong Water Sensitive Formation

Wang,

Wang

et al. 2024

Springer Series in Geomechanics and Geoengineering

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Multiphase Multicomponent Numerical Modeling for Hydraulic Fracturing with N-Heptane for Efficient Stimulation in a Tight Gas Reservoir of Germany

et al. 2021

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Conventionally, high-pressure water-based fluids have been injected for hydraulic stimulation of unconventional petroleum resources such as tight gas reservoirs. Apart from improving productivity, water-based frac-fluids have caused environmental and technical issues. As a result, much of the interest has shifted towards alternative frac-fluids. In this regard, n-heptane, as an alternative frac-fluid, is proposed. It necessitates the development of a multi-phase and multi-component (MM) numerical simulator for hydraulic fracturing. Therefore fracture, MM fluid flow, and proppant transport models are implemented in a thermo-hydro-mechanical (THM) coupled FLAC3D-TMVOCMP framework. After verification, the model is applied to a real field case study for optimization of wellbore x in a tight gas reservoir using n-heptane as the frac-fluid. Sensitivity analysis is carried out to investigate the effect of important parameters, such as fluid viscosity, injection rate, reservoir permeability etc., on fracture geometry with the proposed fluid. The quicker fracture closure and flowback of n-heptane compared to water-based fluid is advantageous for better proppant placement, especially in the upper half of the fracture and the early start of natural gas production in tight reservoirs. Finally, fracture designs with a minimum dimensionless conductivity of 30 are proposed.

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Formation Damage Prevention by Using an Oil-Based Fracturing Fluid in Partially Depleted Oil Reservoirs of Western Siberia

Cited by 3 publications

References 0 publications

Near Wellbore Stimulation by Acoustic Waves

Near Wellbore Stimulation by Acoustic Waves

Application of Modified Ethylene Glycol Fracturing Fluid in Strong Water Sensitive Formation

Multiphase Multicomponent Numerical Modeling for Hydraulic Fracturing with N-Heptane for Efficient Stimulation in a Tight Gas Reservoir of Germany

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