diff --git a/src/pages/WellOperations/WellOperationsEditor.jsx b/src/pages/WellOperations/WellOperationsEditor.jsx
index a49b653..8d9a48e 100644
--- a/src/pages/WellOperations/WellOperationsEditor.jsx
+++ b/src/pages/WellOperations/WellOperationsEditor.jsx
@@ -23,6 +23,10 @@ const numericSortColumnOptions = Object.assign({
   sorter: makeNumericSorter('wellDepth')
 }, numericColumnOptions)
 
+const durationFormattedColumnOptions = Object.assign({
+  render:(value) => Number.isNaN(value.toFixed(2)) ? "-" : value.toFixed(2)
+}, numericColumnOptions)
+
 
 export const WellOperationsEditor = ({idWell, idType}) => {
   const [pageNumAndPageSize, setPageNumAndPageSize] = useState({current:1, pageSize:basePageSize})
@@ -79,7 +83,7 @@ export const WellOperationsEditor = ({idWell, idType}) => {
       sorter: makeDateSorter('startDate'),
       render:(_, record) => moment.utc(record.startDate).local().format(format)
     }),
-    makeColumn('Часы','durationHours', numericColumnOptions),
+    makeColumn('Часы','durationHours', durationFormattedColumnOptions),
     makeColumn('Комментарий','comment', {editable:true, input:<TextArea/>}),
   ]