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Keywords: conductivity
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1326
... Abstract Currently, acid etching and conductivity experiments mostly use smooth rock samples to simulate the formation of acid fractures. There are few reports on the influence of fracture rough morphology on acid etching behavior and conductivity. In this paper, digital carving technology...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1323
... ABSTRACT: The accurate access to fracture conductivity plays a critical role in shale fracturing optimization. Shale is characterized by complex mineral composition, well-developed bedding, and rougher fracture surface after fracturing, which presents a huge challenge to the repeatability...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1387
... conductivity dfit model diagnostic fracture injection test model sensitivity analysis upstream oil & gas new dfit workflow dfit test dfit analysis fracture drillstem/well testing small fracture pressure response new dfit model texas ARMA 21 1387 New Diagnostic Fracture Injection Test Model...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1818
... is that the fracture surface supporting body does not break during the production process, so that the fracture maintains a certain opening and have sufficient conductivity. Therefore, it is particularly important to study the failure mechanism of supporting body for unpropped fracture. In this paper, the outcrop core...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1133
... Abstract This paper investigates propped fracture conductivity evolution as a function of proppant loading concentration under elevated stress as an analog to reservoir drawdown. In particular, we explore the relative impacts and interactions between proppant crushing, embedment, compaction...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1105
... ABSTRACT: The acid etching fracture conductivity is a significant index which influences the acid fracturing effect and evaluates the acid performance. According to the API industry standard, the fracturing conductivity of surface cross-linked acid and closed acidization laboratory experiments...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0033
... ABSTRACT: This paper demonstrates two modifications to Heuer's (1995 and 2005) tunnel inflow calculation method that are intended to improve the accuracy of inflow estimates. The first improvement is concerned with updating the method of characterizing hydraulic conductivity. Rather than...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0062
... of the reservoir temperature following propped hydraulic fracturing treatment. The placed proppant should attain an optimum consolidation to minimize proppant flow back. fracturing materials fracturing fluid proppant consolidation process compressive strength fracture strength conductivity new...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0266
... is established. Finally, the three-dimensional incompressible Navier-Stokes equation is used to describe the flow, calculate the fracture conductivity, and analyze the flow characteristics. Compared with the traditional elastic model, the established model has a more accurate contact area of fracture under high...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1564
... application. However, the conductivity, one of the most important parameters for this technique, has been rarely studied. Aiming at this problem, this paper conducted a research on the conductivity of the diverter particles combined with the engineered proppant by FCS-942 conductivity evaluation system. First...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1790
... ABSTRACT: In order to economically produce unconventional reservoirs, it is necessary to fracture hydraulically to increase the exposed surface of the formation and generate channels of high conductivity. The non-degradation of conductivity during the productive life of the well is crucial...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1859
... test. Pressure data in the fracture is recorded and the response is analyzed to validate the fracture closure stress. For the second application, we simulate production from a single partially propped fracture. The fracture conductivity as a function of stress is controlled by the contact model...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1800
... ABSTRACT: A numerical model is developed to describe proppant transport within a propagating blade-shaped fracture towards defining the fracture conductivity and reservoir production following fracture arrest, deflation then production. Fracture propagation is formulated based on the PKN...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1897
... injection and postulate that those factors should be pondered while considering experimental conditions. casing and cementing cement placement integrity Drillstem Testing wettability well integrity shale surface drillstem/well testing experiment bonding conductivity Drilling proppant...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2101
... the limited length of effective acid etched fracture and the low acid fracture conductivity. Therefore, a novel chelating acid fracturing with slow reaction rate and no precipitation, was proposed to improve the stimulation performance. However, the conductivity of chelating acid fracturing has been rarely...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2065
... of unconventional formations. High creep rates accelerate proppant embedment and can decrease the volume and conductivity of a hydraulic fracture contributing to production decline. This paper presents a multi-disciplinary workflow to model the changes in fracture surface area and conductivity at different time...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2125
... ABSTRACT: Fracture surface features and proppant are the two essential factors controlling hydraulic fracture conductivity. In this work, we measured the effect of fracture surface and proppant parameters on fracture conductivity based on duplicated rough fracture surfaces. To simulate...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1893
... ABSTRACT: . In the process of fracturing production, it is necessary for us to predict fracture conductivity in channel fracturing to gain optimized construction parameter, improve oil and gas production. However, due to the non-linear deformation of the proppant pillar after high pressure...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1668
... ABSTRACT: In this research, a numerical modeling approach, combining the Discrete Element Method (DEM) with lattice Boltzmann (LB) method, was adopted to investigate the potential effects of mixed proppant sizes on fracture conductivity. DEM was used to simulate effective stress increase...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1831
... fracture conductivity closure stress test result mechanical property spe annual technical conference compressive strength Embedment conductivity proppant embedment rock mechanical property frac fluid strength shale shale rock mechanical property reduction 1. INTRODUCTION Increasing demand...

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