No 43 Chevron Alternative Road,
Lekki, Lagos
Mon-Sat 8.00am-6.00pm
Sunday CLOSED

Integrated Services – Well Head Maintenance

Wellhead Integrity

Format Hydrocabon has been in forefront in providing services around wellhead maintenance. The aim is to eliminate well release of Hydrocarbon and ensure well integrity with reduction in deferment. This also includes:

•      Annulus press, survey

•      Wellhead Valve services – Inflow/pressure testing/greasing

•      Pilot Setting Lo/Ho and repairs

•      SSV/SSSV/SD Funcion testing

•      Xmas tree change-out

•      General services of Cameron/FMC/Karverner etc X-mass tree

•      Develop Client Well integrity manual

•      MOU with Cameron OEM rep

 

TYPE OF JOB

TYPE OF WELL

RECOMMENDED FREQUENCY

Wellhead Valves Integrity

Wells in populated area

2 times per year

Non-residential – desert to rest etc

Once every 2 years

All other wells

annually

SSV/SSSV/ESD TEST

All wells

2 tests per year

Wels with ESP

2 tests per year

Wells in populated area

2 tests per year

Annual Surveys

All other wells

Annually

Landing Base Inspection

All wells

Once every 10years

Wells over 30 years old

Once every 5year

 

 

 

 

 

Corrosion Logs

 

All fields

Representative wells should be selected in all producting fields to be  logged through tubing or during their workover to establish the rate of corrosion in every field (or area within a field)

Wells with no previous corrosion logs

Calculate the Remaining Casing Life(RCL) by dividing the total metal thinckness by the rate of corrosion (for wells with  Remaining Casing Life exceeding 20 years, assume 20 years of Remaining Casing Life(RCL)

Wells with previious corrosion logs

Determine the rate of corrosion and calculate RCL.

Run corrosion logs based on numbers of years

All Wells

Issue workover proposal if the Remaining Casing Life (RCL) is less than 4years