Rock Formation Testing Method and Formation Testing Instrument

Abstract

A method of formation testing and a formation testing instrument, comprising a first pump, a dual packer module, a reverse injection module and a second pump, the dual packer module being provided with a support arm at one side thereof capable of setting after deployed; and the dual packer module being provided with first and second probes at the other side, wherein the first probe is located above the second probe and the first and second probes can establish a channel with the formation; the second pump injecting the acidizing liquid in the reverse injection module into the fluid region in the formation by the second probe; and the first pump sucking the fluid in the formation by the first probe.

Dependencies are inferred from the claim text.