# US 11,441,083 B2 · Diluent and dispersing formulations for the recovery of petroleum and method for the recovery of petroleum from oil waste

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- Number: US 11,441,083 B2
- Document ID: US11441083B2
- Status: Granted
- Kind: B2
- Application number: 16/630,004
- Filed: 2018-07-09
- Published: 2020-12-31
- Granted: 2022-09-13
- Earliest claimed: 2017-07-11
- Assignees: AMG de Colombia S.A.S.
- Applicants: Amg De Colombia Limitada
- Inventors: Antonio Alberto Martínez Gómez
- Web page: https://patentgrep.com/patent/US11441083B2

## CPC

- C10G 33/04: with chemical means
- C07C 7/00: Purification; Separation; Use of additives (working-up undefined gaseous mixtures obtained by cracking hydrocarbon oils C10G70/00)
- C07C 7/10: by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids
- C09K 8/52: Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K 8/584: characterised by the use of specific surfactants
- C09K 8/602: {containing surfactants}
- E21B 43/16: Enhanced recovery methods for obtaining hydrocarbons
- C10G 2300/208: Sediments, e.g. bottom sediment and water or BSW
- C10G: CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION (cracking to hydrogen or synthesis gas C01B; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution C07C; cracking to cokes C10B); RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS

## Abstract

The invention relates to a formulation for the diluting and dispersing of oily residues for the recovery of crude oil in processes for producing petroleum, comprising surfactant elements, as well as the process for recovering crude oil using a method for diluting and dispersing the oily residues generated in the petroleum production process.

## Claims

### Claim 1

A formulation for oil separation and recovery from oil waste resulting from oil production, comprising a mixture of linear sulfonic acid, nonyl phenol, butyl glycol, kerosene, and dimethylbenzene, wherein the mixture is designed for recovery of crude oil after extraction during an oil production process.

### Claim 2 (depends on 1)

The formulation according to claim 1, wherein the concentration of the components is the following:
Linear sulfonic acid
Between 1-8% v/v
Nonyl phenol
Between 9-13% v/v
Butyl glycol
Between 8-20% v/v
Kerosene
Between 15-45% v/v
Dimethylbenzene (Xylol)
Between 15-45% v/v.

### Claim 3 (depends on 1)

The formulation according to claim 1, further comprising 0.007 % v/v methylene blue dye.

### Claim 4 (depends on 1)

The formulation according to claim 1, characterized by having a boiling point of 138 to 144° C. at 1 atmosphere.

### Claim 5 (depends on 1)

The formulation according to claim 1, characterized by being insoluble in water.

### Claim 6

Method for oil separation and recovery from oily waste resulting from oil production, characterized by comprising the following steps:
provide a load of oily waste derived from oil production;
add to said oily waste a formulation comprising a mixture of linear sulfonic acid, nonyl phenol, butyl glycol, kerosene, and dimethylbenzene (xylol);
mixing of said oily waste and the formulation;
allow separation of a phase containing oil from a phase containing water and sediments; and
recover the phase containing oil.

### Claim 7 (depends on 6)

The method according to claim 6, wherein the formulation components have the following concentrations:
Linear sulfonic acid
Between 1-8% v/v
Nonyl phenol
Between 9-13% v/v
Butyl glycol
Between 8-20% v/v
Kerosene
Between 15-45% v/v
Dimethylbenzene (Xylol)
Between 15-45% v/v.

### Claim 8 (depends on 6)

The method according to claim 6, wherein the fact that the dose range of the formulation applied to the oily waste is between 1.25 % v/v and 3.00 % v/v.

### Claim 9 (depends on 6)

The method according to claim 6, wherein the mixing of oily waste with the formulation is carried out by recirculation.

### Claim 10 (depends on 6)

The method according to claim 6, characterized by the fact that the separation of the phase containing oil from the phase containing water and sediments is carried out by decantation for two hours.

### Claim 11

A formulation for oil separation and recovery from oily waste resulting from oil production, comprising a mixture of linear sulfonic acid, nonyl phenol, butyl glycol, kerosene, dimethylbenzene, and methylene blue dye.

### Claim 12

A formulation for oil separation and recovery from oily waste resulting from oil production, comprising a mixture of linear sulfonic acid, nonyl phenol, butyl glycol, kerosene, and dimethylbenzene, having a boiling point of 138 to 144° C. at 1 atmosphere.