Try to use server action, to call your desired partner_id record to it.

In XML:

        <record id="ir_actions_server_portal_res_partner" model="ir.actions.server">
            <field name="sequence" eval="5"/>
            <field name="state">code</field>
            <field name="type">ir.actions.server</field>
            <field name="model_id" ref="model_res_partner"/>
            <field name="code">action = self.open_address(cr, uid, None, context)</field>
            <field name="condition">True</field>
            <field name="name">My Addresses</field>
        </record> 
        <menuitem id="addresses_menu" name="Addresses" parent="portal.portal_orders" sequence="0"
			action="ir_actions_server_portal_res_partner"/>

In PY:

 class Partner(orm.Model):
    _inherit = 'res.partner'

    def open_address(self, cr, uid, ids, context=None):
        ir_model_data = self.pool.get('ir.model.data')
        if context is None:
            context = {}

        user = self.pool.get('res.users').browse(cr, uid, uid, context=context)
        partner = user.partner_id
        try:
            view_form_id = ir_model_data.get_object_reference(
                cr, uid, 'base', 'view_partner_form')[1]
        except ValueError:
            view_form_id = False

        return {
            'name': _('Open Addresses'),
            'view_type': 'form',
            'view_mode': 'form',
            'res_model': 'res.partner',
            'view_id': view_form_id,
            'res_id': partner.id,
            'type': 'ir.actions.act_window'
        }