Gas-sampling accuracy unaffected by in-line separator

Journal Article · Mon Jan 13 04:00:00 EST 1997 · Oil and Gas Journal

OSTI ID:423108

Ting, V C ^[1]

---

1. Chevron Petroleum Technology Co., La Habra, CA (United States)

How sampling accuracy is affected by the use of an in-line separator during the sampling of unprocessed natural gas has been studied at Chevron`s Sand Hills gas plant, in Crane, Texas. In experiments on three pipelines, the in-line separator caused no statistically significant condensation of unprocessed gas. Entrained NGL in the pipeline was observed, however, and gas liquid collected in the separator. The in-line separator is used to remove any liquid entrainment in the sample gas stream to protect the gas chromatograph system. There is a concern, however, that thermodynamic conditions in the in-line separator cause the heavy, gaseous-phase hydrocarbon components to condense. The paper discusses measurement accuracy, test locations, sampling and analysis systems, sampling methods, and operation.

• OSTI ID: 423108
• Journal Information: Oil and Gas Journal, Journal Name: Oil and Gas Journal Journal Issue: 2 Vol. 95; ISSN OIGJAV; ISSN 0030-1388
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
ACCURACY
CALORIFIC VALUE
GAS CHROMATOGRAPHY
MIST EXTRACTORS
NATURAL GAS
NATURAL GAS LIQUIDS
PIPELINES
SAMPLING