US 11,697,759 B1
Inducing subterranean formation complexity
Ronald Glen Dusterhoft, Houston, TX (US); Neil Alan Stegent, Houston, TX (US); Robert Barree, Houston, TX (US); Victor Daniel Escobar Acosta, Houston, TX (US); and Maharaja Palanivel, Al-Khobar (SA)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Mar. 3, 2022, as Appl. No. 17/685,954.
Int. Cl. E21B 43/28 (2006.01); C09K 8/72 (2006.01); C09K 8/80 (2006.01); E21B 43/267 (2006.01)
CPC C09K 8/72 (2013.01) [C09K 8/80 (2013.01); E21B 43/267 (2013.01); E21B 43/283 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method compromising:
isolating a first portion of a subterranean formation through a wellbore;
introducing a first fluid into the wellbore at a pressure above a fracture gradient of the subterranean formation penetrated by the wellbore to create a first plurality of fractures within the first portion of the subterranean formation;
introducing a second fluid comprising at least one acid component into the wellbore at a pressure above the fracture gradient of the subterranean formation penetrated by the wellbore to create a second plurality of fractures within a second portion of the subterranean formation adjacent to the first portion of the subterranean formation;
allowing the acid component to dissolve at least a portion of the subterranean formation to form one or more induced fractures in fluidic communication with at least one natural fracture in the first or second portion of the subterranean formation, at least some of the first plurality of fractures, and at least some of the second plurality of fractures; and
then allowing the second fluid to enter the at least one natural fracture in the first portion of the subterranean formation.