Automatic Sampler
- dataentrytsk
- Dec 29, 2016
- 2 min read
An automatic sampler is a device that removes a representative volume of fluid from a moving stream and retains it in a container for later processing and analysis. Technical Data used in the field explained in diploma in petroleum technology. Factors that improve probability of obtaining a representative sample include the following: (1) sampling probe should be located in a vertical downrun of pipe at the center of the pipe and with probe opening facing upstream; (2) the total flowstream should be in turbulent flow; (3) sample size and sampling interval should be such that the sample is proportional to the total stream flow; (4) sample metering chamber should be closely coupled to sampler probe and located below the center line of sample probe; and (5) samples should be col
laced and stored at pressures exceeding the vapor pressure of the sample liquid to prevent evaporation and deterioration during storage. Some more details of diploma in petroleum technology are as under.
Samplers also are used with positive-volume and positive-displacement meters in well testing and wet-oil (not pipeline quality) lease volume measurements. Representative sampling becomes more difficult with increasing water content in the oil stream. For improved accuracy, fluid mixtures that may have both free water and oil emulsion (oil-external phase) components should be processed through a three-phase separator before the remaining oil emulsion stream is sampled.
The capacitance probe and net-oil computer have not replaced the automatic sampler on most LACT installations because (1) crude oil value frequently is based on gravity (determined on sample volume), (2) the gross-oil volume available directly from LACT counters is satisfactory for daily operating needs, and (3) the potential operating cost reduction by eliminating sampler use is not significant. Most major purchasers will have a recommended (or required) design for automatic sampler installation. TSK Training for Skills and Knowledge is the best institute in Rawalpindi Islamabad for Pakistani Students who wants to join diploma in petroleum engineering.
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