Patent ID: 9528044
Filing Date: 2016-12-27
CPC Classification: C09K,E21B

Claim Text:
1. A method comprising: providing a drill-in fluid consisting of: drilling a wellbore through a reservoir section of a subterranean formation with the drill-in fluid wherein the microemulsion-forming surfactant alters the wettability of a surrounding reservoir and forms a microemulsion in situ with hydrocarbons present in the subterranean formation; forming an internal filter cake within the wellbore from the self-degradable filter cake-forming agent; providing an in situ generated acid from at least a portion of the plurality of degradable particulates; allowing the in situ generated acid to interact with the filter cake so as to at least partially degrade the filter cake such that any non-degraded portion of the filter cake is removed by lift off; and producing a hydrocarbon gas from the subterranean formation.