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→Multi-point tests
==Multi-point tests==
==Multi-point tests==
[[file:production-testing_fig2.png|thumb|100 px|{{figure number|2}}Multi-point test used to estimate absolute open flow potential.]]
[[file:production-testing_fig2.png|thumb|500 px|{{figure number|2}}Multi-point test used to estimate absolute open flow potential.]]
Multi-point tests are typically used to establish gas well deliverability and absolute open flow potential; these tests may also be referred to as gas well deliverability tests, backpressure tests, or flow-after-flow tests.<ref name=pt09r1 /> Multi-point tests typically require the measurement of gas flow rates and surface pressures at four stabilized flow conditions; surface shut-in pressure is also measured. Generally, an increasing flow rate sequence is preferred to a decreasing rate sequence.
Multi-point tests are typically used to establish gas well deliverability and absolute open flow potential; these tests may also be referred to as gas well deliverability tests, backpressure tests, or flow-after-flow tests.<ref name=pt09r1 /> Multi-point tests typically require the measurement of gas flow rates and surface pressures at four stabilized flow conditions; surface shut-in pressure is also measured. Generally, an increasing flow rate sequence is preferred to a decreasing rate sequence.