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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yin Jisen Li Jian Xiao You |
| Copyright Year | 2011 |
| Description | Author affiliation: School of Science, Southwest Petroleum University, Chengdu, China (Yin Jisen; Xiao You) || School of computer Science, Southwest Petroleum University, Chengdu, China (Li Jian) |
| Abstract | This paper proposes an effective way of searching for initial value, which is based on Gauss-Newton iteration and combined with the common features of nonlinear rheological equation of drilling fluids. With this method, we can find a fine initial value, which can be applied to the parameter estimation of nonlinear rheological model of drilling fluids. This method overcomes the shortcomings of Gauss-Newton method which strongly depends on the initial value and the iteration may not be convergent in practical application and fully exerts the advantages of Gauss-Newton method which has smaller workload in each step and faster pace of convergence. Large quantities of measured drilling fluids examples show that the rheological parameters estimated by this method have a fine statistical characteristic, that is, fitting residual is nearly unbiased and variance is almost minimum. Besides, the fitting residual is smaller than the one of traditional linear regression and has excellent statistical properties. |
| Starting Page | 1919 |
| Ending Page | 1922 |
| File Size | 287407 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424499502 |
| ISSN | 21579563 |
| e-ISBN | 9781424499533 |
| DOI | 10.1109/ICNC.2011.6022403 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-07-26 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Fluids Parameter estimation Nonlinear Inherent Quality Drilling Fluids Data models Nonlinear Regression Mathematical model Least squares approximation Parameter Approximation Equations Rheological Model |
| Content Type | Text |
| Resource Type | Article |
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