In October 2026 Schlumberger patented a surfactant-based acid formulation for controlled matrix and fracture stimulation in oil and gas wells.
US patent US12767882
Abstract
Compositions for matrix acidizing and fracture acidizing contain water, an acid, and an acid retarding agent including an alkyl dimethyl benzyl ammonium chloride surfactant. The composition may be prepared and injected into a wellbore penetrating a subterranean formation.
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linkedin_urlValue in the APIindustriesValue in the APIemployee_count_lowValue in the APIemployee_count_highValue in the APIrevenueValue in the APIdescriptionValue in the APISignal
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{
"signal_id": "01a802de-2969-5786-8cb4-0924e4fe69e0",
"signal_type": "patents-company",
"signal_subtype": "patentGrant",
"detected_at": "2026-10-21T15:29:55+00:00",
"company": {
"name": "SLB",
"domain": "slb.com"
},
"data": {
"cpc": [
{
"code": "C09K 8/76"
},
{
"code": "C09K 2208/28"
},
{
"code": "C09K 2208/32"
}
],
"tags": [
"Intellectual Property",
"Research & Development",
"Oil & Gas",
"Chemical Engineering"
],
"detail": "In October 2026 Schlumberger patented a surfactant-based acid formulation for controlled matrix and fracture stimulation in oil and gas wells.",
"summary": "Schlumberger was granted a patent for a retarded acid treatment fluid.",
"event_at": "2026-10-20",
"inventors": [
{
"name": "Samuel Danican",
"status": "resolved",
"is_primary": true,
"linkedin_url": "https://www.linkedin.com/in/samuel-danican-9774355"
},
{
"name": "Haiyan Zhao",
"status": "unresolved",
"is_primary": false
},
{
"name": "Patrice Abivin",
"status": "resolved",
"is_primary": false,
"linkedin_url": "https://www.linkedin.com/in/abivinp"
}
],
"event_kind": "grant_date",
"grant_date": "2026-10-20",
"source_url": "https://patents.google.com/patent/US12767882",
"cpc_primary": {
"code": "C09K 8/76"
},
"patent_title": "Single-phase retarded acid based on a cationic surfactant",
"patent_number": "US12767882",
"uspto_assignee": "Schlumberger Technology Corporation",
"patent_abstract": "Compositions for matrix acidizing and fracture acidizing contain water, an acid, and an acid retarding agent including an alkyl dimethyl benzyl ammonium chloride surfactant. The composition may be prepared and injected into a wellbore penetrating a subterranean formation.",
"precision_class": "structural",
"invention_explanation": "A water-based acid mixture that uses a cationic surfactant to slow the acid’s reaction as it enters underground rock formations.",
"technologies_mentioned": [
"well stimulation",
"matrix acidizing",
"fracture acidizing",
"surfactants"
]
}
}
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