Our Company is mainly engaged in the field of petroleum development of well logging, well testing, coal bed gas automatic drainage and other aspects of technology development and equipment production, and to provide the characteristics of geophysical exploration.
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Downhole switch well tool

Downhole switch well tool

Introduction

   After this tool is connected with pressure gauge and goes into well to the target position along with steel wire, anchor mechanism anchors the tool in the interior wall of tubing reliably and controls the annular space among sealing mechanism, sealing instrument and tubing. At this time, the tool is in program-controlled state. It begins to operate as the movement set in advance and conducts well on-off function for several times according to set time sequence in the well. While the test is finished, steel wire operation is carried out to retrieve the tool string, test data of pressure gauge is played back and data is interpreted. 

Features

   Brand-new well on-off tool down hole for several times of steel wire throwing in and pulling type.

   Reducing the influence of borehole storage effect on well test data.

   Shortening the time of shut-in pressure buildup test 

   Reducing the test cost  

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