Category Archives for Production Process Component

Gas Lift

We must comment a bit about gas lift systems because they are in widespread use and have a significant impact on the facility process. Figure 2-19 is a diagram of a gas lift system from the facility engineer’s perspective. High-pressure … Continue reading

21. August 2009 by Jack
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Well Testing

It is necessary to keep track of the gas, oil, and water production from each well to be able to manage the reserves properly, evaluate where further reserve potential may be found, and diagnose well problems as quickly as possible. … Continue reading

21. August 2009 by Jack
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Gas Dehydrator

Removing most of the water vapor from the gas is required by most gas sales contracts, because it prevents hydrates from forming when the gas is cooled in the transmission and distribution systems and prevents water vapor from condensing and … Continue reading

21. August 2009 by Jack
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Compressors

Figure 2-14 shows the configuration of the typical three-stage reciprocating compressor in our example flowsheet. Gas from the FWKO enters the first-stage suction scrubber. Any liquids that may have come through the line are separated at this point and the … Continue reading

21. August 2009 by Jack
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Water Treatment

Water Treatment describes choosing a process for this subsystem, including vessel and open drains. Figure 2-13 shows an enlargement of the watertreating system for the example.

21. August 2009 by Jack
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Pumps

Pumps are normally needed to move oil through the LACT unit and deliver it at pressure to a pipeline downstream of the unit. Pumps are sometimes used in water treating and disposal processes. In addition, many small pumps may be … Continue reading

21. August 2009 by Jack
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Lease Automatic Custudy Transfer

In large facilities oil is typically sold through a LACT unit, which is designed to meet API Standards and whatever additional measuring and sampling standards are required by the crude purchaser. The value received for the crude will typically depend … Continue reading

21. August 2009 by Jack
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Oil Treating

Most oil treating on offshore facilities is done in vertical or horizontal treaters, such as those described in “Crude Oil Treating System“. Figure 2-8 is an enlargement of the oil treater in Flow Sheet. In this case, a gas blanket … Continue reading

21. August 2009 by Jack
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Process Flowsheet

Figure 2-7 is an enlargement of the FWKO of Figure 2-1 to show the amount of detail that would be expected on a process flowsheet. A flash calculation is needed to determine the amount of gas and liquid that each … Continue reading

20. August 2009 by Jack
Categories: Separation | Tags: | Leave a comment

Two Phase vs Three Phase Separator

In our example process the high- and intermediate-stage separators are two-phase, while the low-pressure separator is three-phase. This is calleda “free water knockout” (FWKO) because it is designed to separate the free water from the oil and emulsion, as well … Continue reading

20. August 2009 by Jack
Categories: Separation | Tags: , , | Leave a comment

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