PATENT CLAIM ANALYSIS

Application Number: 15884005
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-06
Patent Classification: ["507", "103000"]

Abstract:
A treatment composition may contact an oil-based mud (OBM) filter cake formed over at least part of a wellbore for cleaning the filter cake by incorporating more oil and/or filter cake particles into the treatment composition as compared to an otherwise identical filter cake absent the treatment composition. The treatment composition may include, but is not limited to, a surfactant, an aqueous-based fluid, an agent, an optional second acid, and combinations thereof. The agent may be or include long chain alcohols, phenol derivatives, fatty esters, a first acid, and combinations thereof. The first acid may be or include a diacid. The diacid may be a polycarboxylic diacid, such as but not limited to [N-(1,2-dicarboxyethylene)D,L asparagine acid] (IDS), polyaspartic acid (DS), ethylenediamine-disuccinic acid (EDDS), [N,N-bis(carboxylmethyl)L-glutamic acid] (GLDA), methylglycinediacetic acid (MGDA), salts thereof, derivatives thereof, and combinations thereof. The tetraacid may be ethylenediaminetetraacetic acid (EDTA), hydroxyl-ethylenediaminetetraacetic acid (HEDTA), and the like.

Claim (Index 14):
A method of cleaning oil-based mud (OBM) filter cake particles from a hydrocarbon reservoir comprising:\n contacting an OBM filter cake formed over at least part of a wellbore with a treatment composition comprising a surfactant, a second acid, an aqueous-based fluid, a solubilizing agent, and combinations thereof; wherein the surfactant is selected from the group consisting of nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, gemini surfactants, zwitterionic surfactants, extended chain surfactants, dendritic surfactants, dendritic extended surfactants, and combinations thereof; wherein the second acid is selected from the group consisting of organic acids, inorganic acids, and combinations thereof; and wherein the solubilizing agent is selected from the group consisting of [N-(1,2-dicarboxyethylene)-D,L-asparagine acid] (IDS), polyaspartic acid (DS), ethylenediamine-disuccinic acid (EDDS), [N,N-bis(carboxylmethyl)L-glutamic acid] (GLDA), methylglycinediacetic acid (MGDA), salts thereof, derivatives thereof, and combinations thereof; and incorporating at least a portion of the oil from the filter-cake into the treatment composition.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 86.0
- Lexical Diversity: 2.20213
- Patent Class: 507.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['12203306', '11866486', '12490783', '11873775', '12414888']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7441251211928006
- 35 USC 102 Novelty (BERT): 0.5216377955069533
- Combined Prediction Score: 0.7218763886242159
- Mean Citation Score: 329.5030920000001
- Max Citation Score: 352.4402
- Similarity Product: 304.845441197896

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test