diff --git a/src/pages/WellOperations/Tvd/AdditionalTables.jsx b/src/pages/WellOperations/Tvd/AdditionalTables.jsx
index 1889b63..d9fd228 100755
--- a/src/pages/WellOperations/Tvd/AdditionalTables.jsx
+++ b/src/pages/WellOperations/Tvd/AdditionalTables.jsx
@@ -1,5 +1,5 @@
 import { Descriptions } from 'antd'
-import { memo, useEffect, useState } from 'react'
+import { memo, useEffect, useMemo, useState } from 'react'
 
 import { makeNumericRender } from '@components/Table'
 import { invokeWebApiWrapperAsync } from '@components/factory'
@@ -21,6 +21,8 @@ const printDate = (date) => formatDate(date) ?? '-'
 export const AdditionalTables = memo(({ operations, xLabel, setIsLoading }) => {
     const [additionalData, setAdditionalData] = useState({})
 
+    const nptSum = useMemo(() => operations.fact?.reduce((out, row) => out + (row?.durationHours ?? 0), 0), [operations.fact])
+
     useEffect(() => invokeWebApiWrapperAsync(
         async () => {
             const [factStartDate, factEndDate] = calcEndDate(operations.fact)
@@ -49,6 +51,7 @@ export const AdditionalTables = memo(({ operations, xLabel, setIsLoading }) => {
                 <Descriptions bordered column={1} size={'small'} style={{ backgroundColor: 'white' }}>
                     <Item label={'Дата завершения'}>{printDate(additionalData.endDate)}</Item>
                     <Item label={'Отставание (сут)'}>{numericRender(additionalData.lag)}</Item>
+                    <Item label={'Длительность НПВ (сут)'}>{numericRender(nptSum)}</Item>
                 </Descriptions>
             </div>
             <div className={'tvd-bl-table'} style={{ bottom: xLabel === 'day' ? '35px' : '85px' }}>