Table 6 Quantitative comparisons with conventional stimulation methods.

From: Integrated stimulation technology for ultra deep tight sandstone gas reservoirs with ultra low permeability in Sichuan Xujiahe formation

Parameter

Conventional methods

Integrated stimulation strategy

Fracturing fluid cost

Baseline

+ 15% to + 20%

Pumping pressure

High

Significantly reduced

Fracture complexity index

Low (< 2.5)

High (> 2.5)

Proppant transport efficiency

Inadequate (< 50%)

Enhanced (> 92%)

Post-fracture gas production

Low

Increased by 210%

Estimated ultimate recovery (EUR)

Baseline

Increased by 50% to 80%