# US 12,216,097 B2 · Sample cylinder content identification system and method thereof

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- Number: US 12,216,097 B2
- Document ID: US12216097B2
- Status: Granted
- Kind: B2
- Application number: 17/704,363
- Filed: 2022-03-25
- Published: 2023-09-28
- Granted: 2025-02-04
- Earliest claimed: 2022-03-25
- Assignees: Saudi Arabian Oil Company
- Applicants: Saudi Arabian Oil Company
- Inventors: Ahmad Saeed Al-Saffar
- Web page: https://patentgrep.com/patent/US12216097B2

## CPC

- G01N 30/14: by elimination of some components
- G01N 30/06: Preparation
- G01N 30/88: Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
- G01N 33/0044: {Sulphides, e.g. H2S}
- G01N 2030/025: {Gas chromatography}
- G01N 2030/8809: {analysis specially adapted for the sample}
- G01N 2030/8854: {involving hydrocarbons}
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

A method for identifying a sample includes collecting a sample in a sample cylinder, directing the sample from the sample cylinder to a tube with controlled pressure, and identifying a phase, a color, and existence of impurities of the sample through a transparent portion of the tube.

## Claims

### Claim 1

A method for identifying a sample comprising:
collecting a sample in a sample cylinder;
directing the sample from the sample cylinder to a tube, using a pressure control system disposed between the sample cylinder and the tube, such that a pressure in the tube is at a same level as a pressure in the sample cylinder;
identifying a phase of the sample and increasing the pressure in the tube to observe phase change of the sample;
identifying whether or not oily sludge or black particles exist in the sample through a transparent portion of the tube;
analyzing the sample using gas chromatography if neither oily sludge nor black particles are identified through the transparent portion of the tube, and
filtering the sample if oily sludge and/or black particles are identified through the transparent portion of the tube.

### Claim 2 (depends on 1)

The method of claim 1, further comprising detecting a level of hydrogen sulfide of the sample in the tube.

### Claim 3 (depends on 2)

The method of claim 2, further comprising classifying the sample as containing a sweet gas or a sour gas based on the level of hydrogen sulfide.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
analyzing the filtered sample using gas chromatography after filtering the sample.