Non-intrusive tracking or locating of objects in pipelines and wellbores from a single location
US-11754425-B2 · Sep 12, 2023 · US
Pressure pulse generation
US12422105B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12422105-B2 |
| Application number | US-202318389045-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 13, 2023 |
| Priority date | Nov 13, 2023 |
| Publication date | Sep 23, 2025 |
| Grant date | Sep 23, 2025 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Systems and methods for creating a pressure pulse within a pipeline are disclosed. The method includes isolating a barrel of a pipeline inspection gauge (PIG) station from the pipeline, pressurizing the barrel up to a selected pressure, and opening an isolation valve between the barrel and the pipeline, thereby creating the pressure pulse.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of creating a pressure pulse within a pipeline, comprising: isolating a barrel of a pipeline inspection gauge (PIG) station from the pipeline; pressurizing the barrel up to a selected pressure by: opening the barrel from the outside; inserting a pressure container with an embedded valve into the barrel; closing the barrel; and opening the embedded valve; and opening an isolation valve between the barrel and the pipeline, thereby creating the pressure pulse. 2. The method of claim 1 , wherein the step of pressurizing the barrel further comprises: opening the isolation valve after the barrel is closed and before the embedded valve is opened, thereby allowing a pressure in the barrel to equalize with a pressure in the pipeline, then closing the isolation valve. 3. The method of claim 1 , wherein the pressure container is a flexible high-pressure bladder. 4. The method of claim 1 , wherein the pressure container is a rigid pressurized container. 5. The method of claim 1 , wherein the selected pressure is greater than a pressure in the pipeline. 6. The method of claim 1 , wherein the step of opening the isolation valve is performed while fluid is flowing through the pipeline.
Assignees
Inventors
Classifications
Launching or retrieval of pigs or moles · CPC title
in the form of a bladder · CPC title
having valve means · CPC title
- F17D1/075Primary
by mere expansion from an initial pressure level, e.g. by arrangement of a flow-control valve · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12422105B2 cover?
- Systems and methods for creating a pressure pulse within a pipeline are disclosed. The method includes isolating a barrel of a pipeline inspection gauge (PIG) station from the pipeline, pressurizing the barrel up to a selected pressure, and opening an isolation valve between the barrel and the pipeline, thereby creating the pressure pulse.
- Who is the assignee on this patent?
- Halliburton Energy Services Inc
- What technology area does this patent fall under?
- Primary CPC classification F17D1/075. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Sep 23 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).