Research Article

Laboratory Measurement and Interpretation of the Changes of Physical Properties after Heat Treatment in Tight Porous Media

Table 4

Contribution of various stimulation methods on different scales of mass transfer.

ScaleFormation heat treatmentHydraulic fracturingGas-based fracturingAcid treatmentAcid fracturing

decrease★★★
Mineral reaction★★★★★★★★★★
Microfracture generation★★★★★★★★★★
Meso/macrofracture generation★★★★★★★★★★★★★★

★★★★: predominant, ★★★: secondary, ★★: weak, : ineffective, and : harmful.