New method for non-linear least square estimation on rheological parameter in Casson model of drilling fluid

Shiyou Xuebao/Acta Petrolei Sinica

Volumn 29, Issue 3, 2008, Pages 470-474

  Lu, Gang ^a   Li, Xiaoguang ^a   Chen, Tiezheng ^a   Shan, Junfeng ^a   Gao, Yiheng ^a  

^a PETROCHINA COMPANY LIMITED   (China)

Author keywords

Casson rheological model; Drilling fluid; Fitting residual error; Non linear least square estimation method; Rheological parameter

Indexed keywords

CALCULATIONS; GLOBAL OPTIMIZATION; ITERATIVE METHODS; LEAST SQUARES APPROXIMATIONS; LINEAR REGRESSION; PARAMETER ESTIMATION; RHEOLOGY; STATISTICS;

CASSON RHEOLOGICAL MODEL; FITTING RESIDUAL ERROR; FITTING VARIANCE; MINIMUM POINT; NONLINEAR LEAST SQUARE ESTIMATION METHOD; RHEOLOGICAL PARAMETER; UNBIASEDNESS;

DRILLING FLUIDS;

EID: 45449098726     PISSN: 02532697     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (13)

1. Yin Yunkai. Application of the compound ion polymer drilling fluid[J]. Natural Gas Industry, 1992, 12(4): 54-60.
2. Long Zhengjun. The synthetic drilling fluid system and characteristics[J]. Journal of Chongqing Petroleum College, 1998, (1): 8-12.
3. Jia Jun, Shi Dongmei. Option on drilling-fluid rheology-pattern for CCSD-1 and circulation pressure drop[J]. Exploration Engineering (Drilling and Tunneling), 2003, (1): 63-67.
4. Jia Jun. The drilling fluid techniques used in pilot hole and hole opening operation of CCSD[J]. Exploration Engineering (Drilling and Tunneling), 2003, (3): 57-60.
5. Hu Maoyan, Yin Wenbin, Zheng Xiuhua, et al. A drilling fluid rheological parameter calculation software and the rheological model's optimization[J]. Drilling Fluid and Completion Fluid, 2005, 22(1): 28-30.
6. Shi Dongmei. A method for discrimination of rheological model of drilling fluid[J]. West-China Exploration Engineering, 2005, (9): 141-142.
7. Zhou Xiaoquan. A new method for determining Casson parameters[J]. Acta Petrolei Sinica, 1994, 15(4): 147-152.
8. Lauzon R V, Reid K I E. New rheological model offers field alternative[J]. Oil and Gas, 1979, (21): 30-34.
9. Written Group of Mathematical Formulas. Mathematical formulas[M]. Beijing: People's Education Press, 1979: 812-813.
10. Deng Naiyang. Computation of unconstrained optimality[M]. Beijing: Science Press, 1982: 259-295.
11. Hu Maoyan, Yin Wenbin, Zheng Xiuhua, et al. Analyses on calculation methods of rheological parameters of drilling fluid and optimization of rheological model[J]. Exploration Engineering (Drilling and Tunneling), 2004, (7): 41-45.
12. Wu Fei, Feng Gang. The methods for rheological models of optimized drilling fluids[J]. West-China Exploration Engineering, 1994, 6(6): 71-73.
13. Wang Haige, Liu Xisheng. Comparison and optimization for rheological models of drilling fluids[J]. Drilling and Production Technology, 1996, 19(1): 63-67.