Talks
See a map of all the places I've given a talk!
February 07, 2018
Conference Presentation, 2018 SPE International Conference and Exhibition on Formation Damage Control, Lafayette, LA, USA
A new approach for estimating sand production through gravel packs is presented in this paper. The approach involves two steps: (a) evaluating the pore throat size distribution (PoSD) of a gravel pack and (b) estimating sand production through the gravel pack using an analytical model. Results of the analytical model were found to agree well with sand production data obtained from lab experiments and Monte Carlo simulations. New gravel pack design guidelines are developed based on findings of this research.
- Paper url: http://dx.doi.org/10.2118/189481-MS
- Recommended Citation: Wu, C.-H., Sharma, M. M., Fuller, M. J., & Mathis, S. (2018, February 7). Estimating Sand Production Through Gravel Packs. Society of Petroleum Engineers. doi:10.2118/189481-MS
January 24, 2017
Conference Presentation, 2017 SPE Hydraulic Fracturing Technology Conference, The Woodlands, TX, USA
In this study we present a method for computing the proppant distribution into each cluster in a fracturing stage. By integrating proppant transport into a multi-cluster hydraulic fracturing model and implementing a simple screenout criterion, we show that the proppant distribution in a fracturing stage can be very uneven with a strong bias towards the heel-side clusters even when the initial fluid distribution is uniform among all clusters.
- Paper url: http://dx.doi.org/10.2118/184861-MS
- Recommended Citation: Wu, C.-H., Yi, S., Sharma, M. M. (2017). "Proppant Distribution Among Multiple Perforation Clusters in a Horizontal Wellbore." Paper SPE-184861-MS was presented at the SPE Hydraulic Fracturing Technology Conference, The Woodlands, TX, USA, 24–26 January.
February 24, 2016
Conference Presentation, 2016 SPE International Conference and Exhibition on Formation Damage, Lafayette, LA, USA
This paper presents a systematic study that shows how the overlap between different mesh layers, the alignment of the protection and support layers, and the relative pore-size ratio, defined as the ratio of pore size of the protection/support layer to that of the filter layer, have a large impact on the sand-retention performance of an MMS. The pore-size distribution (PoSD) of multilayered plain-square-mesh (PSM) and plain-Dutch-weave (PDW) screens is calculated with a novel numerical technique. Influences of screen sintering, coupon sampling, and screen designs on the PoSD of a screen are modeled by varying the layer overlap, shifting the layer alignment, and modifying the design of the protection and support layers. The PoSD data are used as an input into an analytical model for evaluating sand production of PSM screens in slurry-type sand-retention tests (SRTs) for screen-design optimization.
- Paper url: https://doi.org/10.2118/178955-MS
- Recommended citation: Wu, C.-H., Sharma, M. M., Chanpura, R. et al. 2016. Factors Governing the Performance of Multilayered Metal-Mesh Screens. Paper SPE-178955-MS was presented at the SPE International Conference and Exhibition on Formation Damage, Lafayette, Louisiana, USA, 24–26 February.
February 09, 2016
Conference Presentation, 2016 SPE Hydraulic Fracturing Technology Conference, The Woodlands, TX, USA
This paper models the transport of proppant through perforations using a coupled computational fluid dynamics with discrete element method (CFD-DEM) approach. Reasonable agreements are found between the modeling results and published experimental data. Furthermore, the effectiveness of proppant transport through a perforation is evaluated by the particle transport efficiency (PTE), which is defined as the mass fraction of particles transported through a perforation relative to the total mass of particles in the wellbore upstream of the perforation. The effects of changing casing diameter, proppant size, proppant density, proppant concentration, fluid flow rate, fluid rheology, perforation size, and perforation orientation on PTE are investigated.
- Paper url: http://dx.doi.org/10.2118/179117-MS
- Recommended Citation: Wu, C.-H., Sharma, M. M. 2016. Effect of Perforation Geometry and Orientation on Proppant Placement in Perforation Clusters in a Horizontal Well. Paper SPE-179117-MS was presented at the SPE Hydraulic Fracturing Technology Conference, The Woodlands, TX, USA, 9–11 February.
October 27, 2014
Conference Presentation, 2014 SPE Annual Technical Conference and Exhibition, Amsterdam, The Netherlands
In this paper, we use computed tomography (CT) images of real screen coupons to construct 3D replicas of two metal-mesh screen (MMS) types: plain square mesh (PSM) and plain Dutch weave (PDW). An entirely computer-based method of creating 3D screen assemblies is also presented. The virtual screens were compared and validated against the ones generated from the CT images. We also conducted DEM simulations of pre-pack tests through these multi-layer MMS assemblies. The retention efficiency of MMSs for different particle sizes have been calculated for better slurry test modeling. We have shown that the effective size of MMS assemblies can be significantly lower than the nominal rating of the filter layer.
- Paper url: http://dx.doi.org/10.2118/170935-MS
- Recommended Citation: Mondal, S., Wu, C.-H., Sharma, M. M., Chanpura, R. A., Parlar, M., & Ayoub, J. A. 2014. Characterizing, Designing, and Selecting Metal Mesh Screens for Standalone-Screen Applications. Paper SPE-170935-PA was presented at the SPE Annual Technical Conference and Exhibition, Amsterdam, The Netherlands, 27–29 October.
February 26, 2014
Conference Presentation, 2014 SPE International Conference and Exhibition on Formation Damage, Lafayette, LA, USA
This paper reviews the current practices in particle size distribution (PSD) determination and the use (and misuse) of the information obtained from these measurements. A methodology is proposed toward determining what is relevant under gradual-formation-failure conditions for wire-wrap screen, discuss when it should be used and why, and present initial experimental results that support our conclusions.
- Paper url: http://dx.doi.org/10.2118/168152-MS
- Recommended citation: Zhang, K., Chanpura, R. A., Mondal, S., Wu, C.-H., Sharma, M. M., Ayoub, J. A., & Parlar, M. 2014. Particle Size Distribution Measurement Techniques and Their Relevance or Irrelevance to Sand Control Design. Paper SPE-168152-MS was presented at the SPE International Conference and Exhibition on Formation Damage, Lafayette, Louisiana, USA, 26–28 February.
