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Category: Wellhead Compression

Wellhead Compression

FIELD TROUBLESHOOTING CHECKLIST FOR WELLHEAD COMPRESSORS

Posted on October 14, 2009

1. Check interstage line temperatures to determine which valves have been removed from a cylinder. 2. Remove disabled valves, cages, and valves in ends taken…

Wellhead Compression

Dual Completions Wellhead Compression

Posted on October 14, 2009

Attempting to utilize a single compressor to service both the casing and tubing flows on a dual completion well can present some real problems. On…

Wellhead Compression

Minimum Wellhead Suction Pressure

Posted on October 14, 2009November 9, 2012

field compressor to trip-off prematurely. In this case, the field operators were reporting that they could not operate a compressor suction below 70 PSIG. Their…

Wellhead Compression

Wellhead Transient Effects

Posted on October 14, 2009

To further complicate the adjustment of a field compressor, one needs to be aware of certain transient effects that the well imposed on the compressor.…

Wellhead Compression

Wellhead Varying Compression Speed

Posted on October 13, 2009

If a compressor has an excessively high second-stage (crankend) discharge temperature and a low first-stage (head-end) discharge temperature, one should proceed as follows: • Reduce…

Wellhead Compression

Wellhead Rod Loading Limit

Posted on October 13, 2009

As the wellhead pressure falls, the differential pressure that the field compressor must deliver increases. This is because the collection header into which the compressor…

Wellhead Compression

Wellhead Horse Power Bottlenecks

Posted on October 13, 2009November 9, 2012

There are three fundamental limits to which all field compressors are subject: • Compressor rod loading • Speed • Engine horsepower In addition to calculating…

Wellhead Compression

Increasing Wellhead Tubing Velocity

Posted on October 13, 2009November 9, 2012

The easiest, but least cost effective method, to operate a field compressor is the crank-end mode. When only the Crank-end (i.e. second stage) is in…

Wellhead Compression

Wellhead Entrainment Velocity

Posted on October 13, 2009November 9, 2012

This incident illustrates the importance of adjusting field compressor operation to maintain a minimum velocity in the production tubing. The velocity must be sufficient to…

Wellhead Compression

Wellhead Compressor Configuration

Posted on October 13, 2009November 9, 2012

Figure 4-1 illustrates a typical two-stage compressor. Machines of this type range from 30 to 300 horsepower. They are driven by a gas engine; fueled…

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