Computational Rheology for Pipeline and Annular Flow: - download pdf or read online

By Wilson C. Chin PhD

ISBN-10: 0884153207

ISBN-13: 9780884153207

Computational Rheology for Pipeline and Annular movement develops and applies sleek analytical and computational finite distinction tools for fixing stream difficulties in drilling and construction. It additionally presents worthy insights into move insurance research in subsea pipeline layout. utilizing modeling suggestions that simulate the movement of non-Newtonian fluids, e.g., energy legislation, Bingham plastic, and Herschel-Bulkley flows, this booklet provides confirmed annular move methodologies for cuttings shipping and fixed pipe research in keeping with specified experimental information bought from hugely deviated and horizontal wells. those tools are utilized for hugely eccentric borehole geometries to the layout of pipeline bundles in subsea purposes, the place such annular configurations come up in speed and thermal modeling applications.

Also lined widely are the layout and modeling of pipelines having non-circular cross-sections, the place deviations from perfect round geometries come up from plugging because of wax deposition and the presence of hydrates and asphaltenes. As with regards to annular flows, the recent algorithms observe to fluids with basic rheological description; for instance, the tools express very accurately how movement fee and strain gradient differ nonlinearly in useful challenge situations.

* comprises Windows-based software program that comprises hugely built-in, common color-graphics algorithms (available through the Gulf expert Publishing site at www.gulfpp.com)

* offers useful insights into circulate coverage analysis.

* comprises new algorithms on annular flows and fluids with normal rheological descriptions offer ideas to functional difficulties.

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Read Online or Download Computational Rheology for Pipeline and Annular Flow: Non-Newtonian Flow Modeling for Drilling and Production, and Flow Assurance Methods in Subsea Pipeline Design PDF

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Extra resources for Computational Rheology for Pipeline and Annular Flow: Non-Newtonian Flow Modeling for Drilling and Production, and Flow Assurance Methods in Subsea Pipeline Design

Sample text

4976, 49th Annual Technical Conference and Exhibition of the Society of Petroleum Engineers, Houston, October 6-9, 1974. 2 Eccentric, Nonrotating, Annular Flow Numerical solutions for the nonlinear, two-dimensional axial velocity field, and its corresponding stress and shear rate distributions, are obtained for eccentric annular flow in an inclined borehole. The homogeneous fluid is assumed to be flowing unidirectionally in a wellbore containing a nonrotating drillstring. The unconditionally stable algorithm used draws upon finite difference relaxation methods (Lapidus and Pinder, 1982; and Crochet, Davies and Walters, 1984), and contemporary methods in differential geometry and boundary conforming grid generation (Thompson, Warsi and Mastin, 1985).

8 gal/min. Computed results for the apparent viscosity are plotted in Figure 2-5d; representative values are tabulated in Table 2-2. Table 2-1 Example 1: Annular Velocity (in/sec) Results # 1 # 2 # 3 # 4 for pipe/collar boundary, Contour No. 0000E+00 Results for Contour No. 3875E+02 Results for borehole annular boundary, Contour No. 0000E+00 Eccentric, Nonrotating, Annular Flow 41 5 5 5 6 6 7 5 7 9 15 6 15 11 5 9 11 8 6 7 15 7 6 6 915 8 6 5 11 7 6 6 715 6 6 11 8 6 5 5 6 7 91511 7 6 5 6 5 91511 8 5 5 6 7 8 7 6 5 1511 6 6 5 7 11 8 6 6 5 6 15 8 7 7 9 1511 8 6 9 1511 5 7 9 6 7 5 6 5 5 6 7 9 9 15 15 11 11 7 8 6 6 5 5 5 5 7 6 7 5 6 15 7 5 15 7 6 811 9 5 7 1115 7 6 6 6 8 15 9 5 6 811 5 5 6 15 9 7 6 6 7 811 6 7 811 6 6 7 815 6 8 6 15 6 11 9 8 15 15 7 9 6 7 7 6 6 5 5 5 9 7 6 5 6 6 7 6 7 8 8 11 15 9 9 7 6 21 18 26 7 2215 8 2 29 2417 2 5 9 5 12 8 5 1 7 6 5 7 6 5 5 2 9 6 4 0 1 3 3 1013 7 1710 24 517 2329 6132638 30251710 2 6202739 2638 9 2 613 34 2417 11172928 2 5 192419 15 4 9 13 2622 2 6 12 7 1 3 18 5 0 21 8 2 12 4 15 6 7 28 8 5 3 1 21 18 7 22 15 8 2 24 17 2 6 15 7 5 13 12 8 2 172326 5 1 9 2938 310 24 6 4 0 1317 1 3 710 30 29 25 17 24 26 10 917 22 2 2 15 21 6 6 2 1218 20 1311 5 7 15 2726 17 4 2 812 3938342919 9 1 5 2824 6 3 7 1913 0 2 4 6 8 5 3 1 Figure 2-5e.

Even if velocity is steady in time, temperature does not have to be. For example, in a closed system, temperatures will increase if the borehole walls do not conduct heat away as quickly as it is produced; weak heat production can lead to large increases in T over time. Thus, whether or not frictional heat production is significant, reduces to a matter of time scale and temperature boundary conditions. If the increases are significant, the changes of viscosity as functions of T must be modeled.

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Computational Rheology for Pipeline and Annular Flow: Non-Newtonian Flow Modeling for Drilling and Production, and Flow Assurance Methods in Subsea Pipeline Design by Wilson C. Chin PhD


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