Monitoring Liquid Slugs Using Distributed Acoustic Sensing and an Air Gun.

Hyojeong Seo, Erasmus Mensah, Caio Morais De Almeida, Amy Amudzi-Deku, Smith Leggett

Abstract read

In one paragraph

Article in Sensors (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Hyojeong SeoBob L. Herd Department of Petroleum Engineering, Texas Tech University, Lubbock, TX 79409, USA.ORCID 0009-0003-1841-0497

Erasmus MensahBob L. Herd Department of Petroleum Engineering, Texas Tech University, Lubbock, TX 79409, USA.ORCID 0009-0009-4619-3649

Caio Morais De AlmeidaBob L. Herd Department of Petroleum Engineering, Texas Tech University, Lubbock, TX 79409, USA.

Amy Amudzi-DekuBob L. Herd Department of Petroleum Engineering, Texas Tech University, Lubbock, TX 79409, USA.

Smith LeggettBob L. Herd Department of Petroleum Engineering, Texas Tech University, Lubbock, TX 79409, USA.ORCID 0000-0003-0489-6791

Funding

Gulf Research Program, National Academies of Sciences, Engineering, and Medicine N/A

6 · The paper itself

Abstract

Distributed acoustic sensing sends laser pulses along a fiber optic cable and analyzes the backscattered light to identify acoustic signals along the entire fiber. Liquid slugs were produced in a 427 m vertical test well using surface-controlled gas lift valves. To enhance DAS monitoring, pressure pulses were induced by multiple acoustic shots from a fluid level gun. Visualization of the responses through frequency band energy plots and unfiltered phase shift measurements permitted tracking slug movement and estimating parameters such as velocity, location, and body length. The results demonstrate that DAS stimulated with acoustic pulses can effectively track liquid slugs in real-time. We observe that relying solely on flow-induced noise in multiphase flow environments may not provide sufficient signal strength for slug detection. Applications include real-time detection of liquid slugs for improved well monitoring and flow management.

Indexed as

DASdistributed acoustic sensingfluid level gunsliquid slug trackingriser systems

Identifiers

PMID41755217

DOI10.3390/s26041278

PMCPMC12944455

What OpenQuestion holds

Textmetadata

LicenceCC BY

Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.