Magento 2 how to add data to custom column in sales_order table

I wan’t to add data in a custom field that I created, I used InstallSchema like this:

Setup/InstallSchema.php

use MagentoFrameworkSetupInstallSchemaInterface;
use MagentoFrameworkSetupSchemaSetupInterface;
use MagentoFrameworkSetupModuleContextInterface;

class InstallSchema implements InstallSchemaInterface

{

public function install(SchemaSetupInterface $setup, ModuleContextInterface $context)
{
    $installer = $setup;
    $installer->startSetup();

    $installer->getConnection()->addColumn(
        $installer->getTable('quote'),
        'pakke_shipmentid',
        [
            'type' => 'text',
            'nullable' => true,
            'comment' => 'Pakke Shipment Id',
        ]
    );


    $installer->getConnection()->addColumn(
        $installer->getTable('sales_order'),
        'pakke_shipmentid',
        [
            'type' => 'text',
            'nullable' => true,
            'comment' => 'Pakke Shipment Id',
        ]
    );


    $installer->getConnection()->addColumn(
        $installer->getTable('sales_order_grid'),
        'pakke_shipmentid',
        [
            'type' => 'text',
            'nullable' => true,
            'comment' => 'Pakke Shipment Id',
        ]
    );


    $setup->endSetup();
}

}

I will need to use it in observer.

Greetings!