Try to set a new argument in the xml
for the logo
block something like:
<referenceBlock name="logo">
<arguments>
<argument name="logo_img_width" xsi:type="number">147</argument>
<argument name="logo_img_height" xsi:type="number">103</argument>
<argument name="logo_src"name="logo_file" xsi:type="string">your_logo.img</argument>
</arguments>
</referenceBlock>