The invention relates to a mechanical
recovery horizontal well preset produced fluid profile testing method and a special
wellhead testing device thereof, mainly aiming at solving the problem of the downhole testing of a mechanical
recovery horizontal well. The invention is characterized in that: the special
wellhead testing device comprises an eccentric type
tubing hanger body connected with a tubing string, wherein, the side wall of the
tubing hanger body is divided into a body and splits which are completely matched with each other, and the splits are fixed on a locking arm which is fixed on the body though bolts; and a corresponding matched cable penetrating a channel is arranged at the splitting seam of the body and the splits, the channel is internally provided with a cable
gasket, a spacer and a pressing cap. By being matched with a special
wellhead support, under the condition that a testing cable and a tester are pre-arranged in the horizontal well to test a target layer, an oil
pipe does not touch the cable during the up and down process of the oil
pipe. The method and the special wellhead testing device can realize the produced fluid profile testing of the mechanical
recovery horizontal well, and ensure the accuracy of normal testing and data of the mechanical recovery horizontal well with simple and reliable operation method.