False-testing is an useful technique that has attracted extensive attention in recent years. However, it requires that the wells should be opened and shut-in alternately for several times. A new technique of single pulse-testing is developed in this paper. The advantage of single pulse-testing lies in that only one cycle of openning and shut-in of a well is required so that the tine required for a well testing operation is about 1/3 of that for a multiple pulse-testing, and thus both the loss of oil production and trouble caused by alternately openning and shut-in the well can be reduced greatly.

In the single pulse-testing technique, the unknown pressure trend and other background "noise" from adjacent wells or from the well itself can be eliminated by methods of parallel or arbitrary straight line pairs. The later technique is a generalization of the former and is more flexible in field application.

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