TVDSS

AcronymDefinition
TVDSSTrue Vertical Depth SubSea
TVDSSTotal Vertical Depth Subsea (oil and gas)
References in periodicals archive ?
MNA-17 ST1 (AJ) was drilled to a total depth of 1983.9 metres TVDSS and found 17.4 m of oil pay in 4 separate reservoirs.
The MNA-17 (AP) well will be drilled to a total depth of 1,859.3 metres total vertical depth subsea (TVDSS) and drilling is expected to take 5 days on a trouble free basis.
The MNA-17 (AJ) sidetrack is expected to take 7 days with a total depth of 1,981.2 metres TVDSS.
- A very significant hydrocarbon column of at least 620 metres is present within the basement extending well below structural closure (which is 1,380 metres TVDSS) confirming Hurricanes reservoir model for the Lancaster field.
- Provisional analysis indicates a minimum oil down to (ODT) at 1,620m TVDSS, 240 metres TVD below structural closure.
The company will drill the MNA-17 (AP) well to a total depth of 1859.3 m total vertical depth subsea (TVDSS).
The 13/25-1 well, which was targeting the Bagpuss prospect, on the Halibut Horst in the Outer Moray Firth, has reached a total depth of 1,532 feet (TVDSS) in granite basement.
Upper Jurassic J1-1 (-2,462.4 to -2,465.4 m TVDSS) net pay 3.0 m
The second horizontal well, A-215, was spudded on 21 May 2016 and has been successfully completed with a horizontal segment of 1,007 m in the Upper Jurassic J1-1 interval at a depth of approximately -2,457 to -2,475 m TVDSS. Based on log data it is estimated that 809 m of the horizontal section is effective net pay.
The AAL-4X well was drilled to a maximum total depth of 1,246m TVDSS and was forecast to take approximately 48 days to complete.
AWE Limited advises that as at 09:00 hours (9.00am) AEST on 30 May 2016, the AAL-4X appraisal well had reached Total Depth (TD) at 1246m Total Vertical Depth Sub Sea (TVDSS) and wireline logging operations are underway across the target K Sand and G Sand reservoirs.
The Arbuzovskoye well A-214 was spudded on 22 April 2016 and has been successfully completed with a horizontal segment of about 1,000 m in the Upper Jurassic J1-1 and J1-2 intervals at a depth of approximately -2,457 to -2,467 m TVDSS. Based on log data it is estimated that 931 m of the horizontal section is effective net pay.