Control Valves Sizing Handbook, Equations, CV calculation, Fisher
Description complète
Baker Plug in Standard and Sur-Set Manual.
...Full description
Control Valves and the Control Loop
automated choke valvesDescription complète
types of controls valvesDescripción completa
InFlow Control Devices and InFlow/Interval Control Valves working together on the Troll Field Frank Eriksen – Intelligent Production Systems IPS Baker Hughes - Norway Geomarket
SPE Smart Energy – Aberdeen June 10th. 2009
Content Abstract / Introduction to the Troll Field Challenges Technical solutions Production optimalization results Installation update
2
3
Troll Field - History Since the early days of the Troll field in mid 1990’s, long horizontal completions have been the norm. In some wells up to 13 500 meters of reservoir contact has been achieved.
The last decade has seen the introduction of newer technologies like Multilaterals, Inflow Control Devices (ICD) and Inflow Control Valves (ICV).
Troll
UK
60°45’
3°40’ 3
Challenges – Decreasing Control Lines, Increasing Functionallity Valve Design – Reliability – Functionallity Requirement for increased number of zones – Limited number of control lines available – Stretching the limits / thinking ”outside the box”
4
Hydraulic valve (ICV) priciples
5
Technical Solution for 1 available control line The “2 x 1” architecture provides operation of 2 downhole control valves with 1 tubing hanger penetration (2 valves x 1 penetration). The system is designed with a single control line attached from surface to the Baker Oil Tools Single Line Switch (SLS). The open and close lines of the upper valve are connected to the SLS. The close port of the lower valve is connected to the close port of the upper valve and the open port of the lower valve is connected to the open circuit of the upper valve by use of a “Y-Block”. Hydraulic Control Lines Required for Remote Flow Control Valve operation Hydraulic Tubing Hanger Penetrations
1
Number of Packer Penetrations
1
Number of control lines
1
Functionality
6
Synchronized valve movement
Technical Solution for 2 available control lines The “2 x 2” architecture provides operation of 2 downhole control valves with 2 tubing hanger penetrations (2 valves x 2 penetrations). The system is designed where a control line is attached to the close port of the upper valve and is shared with the close port of the lower valve. Additionally, the control line that is attached to the open port of the upper valve is shared with the open port of the lower valve by use of a “Y-Block.”
Hydraulic Control Lines Required for Remote Flow Control Valve operation Hydraulic Tubing Hanger Penetrations
2
Number of Packer Penetrations
2
Number of control lines
2
Functionality
7
Independent Control
Technical Solution - Logic Table Troll Pos No.:
Upper Valve Home Position = 100% Open
Lower Valve Home Position = 100% open
8
1
2
3
2
4
2
7
2
8
2
9
2
10
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
-
Up
Dwn
Up
Dwn
Up
Dwn
Up
Dwn
Up
Dwn
Up
Dwn
Up
Dwn
Close
100%
27.1%
100%
27.1%
100%
27.1%
100%
2%
100%
5%
100%
Close
100 %
Close
1
2
3
4
5
7
8
9
10
11
12
13
14
1
-
Up
Dwn
Up
Dwn
Up
Dwn
Up
Dwn
Up
Dwn
Up
Dwn
Up
Dwn
Close
100%
2%
100%
5%
100%
Close
100%
27.1%
100%
27.1%
100%
27.1%
100 %
Close
6
Troll Completion Schematic
9
Production optimalization results Valve operation frequency? The flow control valves are operated at varying intervals. The purpose of operating the valves can be well testing, production optimization or preventive maintenance. Well tests of individual branches are carried out every six months and for some wells more frequently. Flow Control valves are operated to open/close/choke branches to optimise production based on well test results.
Optimized production? A major benefit is that a bad producing branch (high GOR and/or high water cut) can be choked/closed allowing the other branch to produce better and therefore increase production.
Benifits of IWS completions on Troll? Flow Control Valves are considered an important tool in production optimization at Troll and therefore all multilateral wells are planned with such valves. Huge benefits are seen both at the clean up stage and thoughout the lifetime of the well
10
Installation update The IWS technology is here to stay. For new project developments this technology is more the rule than the exception.
Baker Hughes Norway has to date 34 IWS installations in the North Sea since year 2000, 8 of which have been on the Troll Field. With 90 zones remotely operated, 88,89% are still in operation.
11
InFlow Control Devices and InFlow Control Valves working together on the Troll Field Frank Eriksen – IPS Baker Hughes - Norway Geomarket
