Water injection well test combined instrument

A water injection well testing combining instrument mainly solves the problems of the prior testing instrument with bad testing data reliability, affecting the normal water injection of the other layer section and bad positioning accuracy, characterized in that, a side limb (5) with the same specification with a packer is arranged on a throwing and salvaging device (3), and is arranged with a liquid outlet (6) communicated with a multiparameter flowmeter (2) through a high pressure hose. The water injection well testing combining instrument solves the problems in the prior technology to put in the testing instrument after closing, which ensures the reliability of the matriculated testing materials, and is put into the well for testing under the normal water injection only sealing the object layer section without affecting the normal water injection of the other layer section. The lower part of the throwing and salvaging device is added with a locating detent, which increases the positioning accuracy, to lead the stress even more balanced, and reduces the ration of causing the instrument to be damaged caused by the overlarge stress.