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2. Well test (oil and gas) - Wikipedia

   en.wikipedia.org/wiki/Well_test_(oil_and_gas)

   Simplified process flow diagram. A plant is receiving a multi phased flow of oil and gas from many wells via a manifold. Flow from one well only may be taken to the test separator (shaded). The test separator has the feature to separate gas and water from the oil, and to have each component measured, under different conditions.

3. Instrumentation in petrochemical industries - Wikipedia

   en.wikipedia.org/wiki/Instrumentation_in...

   The fire and gas detection system comprises local sensors to detect the presence of gas, smoke or fire. These initiate alarms in the control room. Simultaneous detection of multiple sensors initiates action to start firewater pumps and close fire dampers in enclosed spaces. The petrochemical plant may have several levels of shutdown.

4. Gas detector - Wikipedia

   en.wikipedia.org/wiki/Gas_detector

   A gas detector can sound an alarm to operators in the area where the leak is occurring, giving them the opportunity to leave. This type of device is important because there are many gases that can be harmful to organic life, such as humans or animals. Gas detectors can be used to detect combustible, flammable and toxic gases, and oxygen depletion.

5. Tracer use in the oil industry - Wikipedia

   en.wikipedia.org/wiki/Tracer_use_in_the_oil_industry

   Tracers are used in the oil industry in order to qualitatively or quantitatively gauge how fluid flows through the reservoir, [1] as well as being a useful tool for estimating residual oil saturation. Tracers can be used in either interwell tests or single well tests. [2]

6. Moisture analysis - Wikipedia

   en.wikipedia.org/wiki/Moisture_analysis

   A color indicator tube (also referred to as a gas detector tube [9]) is a device that natural gas pipelines use for a quick and rough measurement of moisture. Each tube contains chemicals that react to a specific compound to form a stain or color when passed through the gas. The tubes are used once and then discarded.

7. Infrared open-path detector - Wikipedia

   en.wikipedia.org/wiki/Infrared_open-path_detector

   An open path detector usually costs more than a single point detector, so there is little incentive for applications that play to a point detector's strengths: where the point detector can be placed at the known location of the highest gas concentration, and a relatively slow response is acceptable. The open path detector excels in outdoor ...