A Hybrid Model through the Fusion of Type-2 Fuzzy Logic Systems and Sensitivity-Based Linear Learning Method for Modeling PVT Properties of Crude Oil Systems

Table 1

Testing results for 160-dataset when predicting 𝐵_ob and 𝑃_𝑏. 𝑅²: correlation coefficient, SD: standard deviation, 𝐸_𝑎: average absolute percent relative error (AAPRE), 𝑃_𝑏: bubble-point pressure, 𝐵_ob: oil formation volume factor.

Prediction methods	𝐵ob			𝑃𝑏
	𝑅^2	SD	𝐸𝑎	𝑅^2	SD	𝐸𝑎
Type-2 fuzzy model	0.994	0.09166	1.493	0.931	2.461	20.65
SBLLM	0.995	0.09154	1.200	0.961	4.060	35.54
T2-SBLLM hybrid	0.996	0.01427	1.013	0.986	2.134	17.65