Hii,

i dont know which odoo version version you will use here is custom module 

models/document_view_log.py

from odoo import models, fields


class DocumentViewLog(models.Model):
    _name = 'documents.document.view.log'
    _description = 'Document View Log'
    _order = 'viewed_at desc'

    user_id = fields.Many2one('res.users', string="User", required=True)
    document_id = fields.Many2one('documents.document', string="Document", required=True, ondelete="cascade")
    viewed_at = fields.Datetime(string="Viewed At", default=fields.Datetime.now)

models/documents_document.py

pythorom odoo import models, api, fields


class DocumentsDocument(models.Model):
    _inherit = 'documents.document'

    view_log_count = fields.Integer(string="Views", compute='_compute_view_log_count')

    def _compute_view_log_count(self):
        for doc in self:
            doc.view_log_count = self.env['documents.document.view.log'].search_count([
                ('document_id', '=', doc.id)
            ])

    def action_view_logs(self):
        return {
            'name': 'View Logs',
            'type': 'ir.actions.act_window',
            'res_model': 'documents.document.view.log',
            'view_mode': 'tree,form',
            'domain': [('document_id', '=', self.id)],
            'context': {'default_document_id': self.id},
        }

    def read(self, fields=None, load='_classic_read'):
        res = super().read(fields, load)
        for doc in self:
            self.env['documents.document.view.log'].create({
                'user_id': self.env.uid,
                'document_id': doc.id,
            })
        return res

views/document_view_log_views.xml

<odoo>
  <record id="view_document_view_log_tree" model="ir.ui.view">
    <field name="name">documents.document.view.log.tree</field>
    <field name="model">documents.document.view.log</field>
    <field name="arch" type="xml">
      <tree string="Document Views">
        <field name="user_id"/>
        <field name="document_id"/>
        <field name="viewed_at"/>
      </tree>
    </field>
  </record>
</odoo>

views/documents_document_views.xml

<odoo>
  <record id="view_documents_document_form_inherit" model="ir.ui.view">
    <field name="name">documents.document.form.inherit.viewlog</field>
    <field name="model">documents.document</field>
    <field name="inherit_id" ref="documents.view_documents_document_form"/>
    <field name="arch" type="xml">
      <xpath expr="//form/header" position="inside">
        <button name="action_view_logs" type="object" class="oe_stat_button" icon="fa-eye">
          <field name="view_log_count" widget="statinfo" string="Views"/>
        </button>
      </xpath>
    </field>
  </record>
</odoo>

manifest file and other files make as your requirements 
i hope this module is help full 
it is module is version 16