Extended Finite Element Method for Predicting Productivity of Multifractured Horizontal Wells

Table 2

Comparison between the numerical results for different meshes.

Key parameters and results	Plan A	Plan B	Plan C	Plan D
Mesh strategy	Structured, uniform	Structured, uniform	Structured, uniform	Unstructured
Number of elements	10000	40000	90000	16107
Average side length of well element (m)	5.00	2.50	1.67	0.10
Calculated bottomhole flowing pressure (MPa)	2.7567	5.1523	5.7034	6.2715
Error of bottomhole flowing pressure (%)	−56.06	−17.88	−9.10	−0.04
Calculated production rate (m^3/d)	6.52	5.52	5.28	5.03