ALRDC Seminar
New and Novel Artificial Lift Technologies
ConocoPhillips, Houston, Texas
May 14, 2014
Retrofitted Continuous Chemical
Injection – The Next Level
Rodger Lacy; Shonagh Mackie; Brian Marr, Weatherford
Presented by: Rodger Lacy, Global Product Line Manager, Houston
Contents
• Overview of an existing Weatherford Insert String
Hanger – Capillary (WISH-C).
• Components of a system.
• Description of new technology.
• Development status.
• Industry support needed.
May 14, 2014
2014 ALRDC Seminar for New or Novel
Artificial Lift Technologies, Houston, Texas
2
Overview of WISH-C
• WISH-C is used to retrofit continuous chemical injection.
• No xmas tree modifications are required.
• The existing control line: – Is flushed and changed to treatment chemical.
– Dual function – open SSV and, at increased pressure inject chemical.
• A capillary string and WISH-C hanger is run and locked into the
SSV profile.
• The hanger has: – A new lock profile and seal bores to land a WRSSV.
– A port to allow control line fluid a path to function the new WRSSV.
– A crack valve to allow chemical injection.
May 14, 2014
2014 ALRDC Seminar for New or Novel
Artificial Lift Technologies, Houston, Texas
3
WISH-C Components – Bottom up
May 14, 2014
Chemical
Injection Valve
Capillary String
Well Control
Sub
Crack Valve
WISH-C
Hanger
Insert Valve
2014 ALRDC Seminar for New or Novel
Artificial Lift Technologies, Houston, Texas
4
Existing Deployment Method
• Current design WISH-C systems are run as following: – Run #1 - the following set in TRSV/SVLN
• Injection valve, capillary string, well control sub
and WISH hanger.
– Run #2 - the following set in WISH Hanger
• Insert valve
• Slick line unit required to service the insert valve.
• Additional capillary unit required to service all other
components.
May 14, 2014
2014 ALRDC Seminar for New or Novel
Artificial Lift Technologies, Houston, Texas
5
Description of New Technology
• Proposal to re-engineer the crack valve to become
integral with the insert valve.
– Crack valve would become retrievable on slick line.
– Reduced time and cost to service the crack valve.
– Increased availability of suitable units (no capillary required).
• Will require re-engineering: – WISH hanger.
– Insert valve (will not affect current API 14A certification).
– Chemical routing / flow path.
May 14, 2014
2014 ALRDC Seminar for New or Novel
Artificial Lift Technologies, Houston, Texas
6
Development Status
• Conceptual design complete.
• Still require: – Finalise engineering drawings.
– Manufacture prototype.
– Complete lab testing.
– Conduct field trials in live wells.
May 14, 2014
2014 ALRDC Seminar for New or Novel
Artificial Lift Technologies, Houston, Texas
7
What Support is Needed from
Industry?
• Gauging of market potential and industry needs.
• Input on sizes required.
• Partnership to identify wells for field trials.
• Post trial review and optimisation.
May 14, 2014
2014 ALRDC Seminar for New or Novel
Artificial Lift Technologies, Houston, Texas
8
Copyright
Rights to this presentation are owned by the company(ies) and/or
author(s) listed on the title page. By submitting this presentation to
the ALRDC Seminar for New or Novel Artificial Lift Technologies,
they grant to the Artificial Lift Research and Development Council
(ALRDC) rights to:
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Other use of this presentation is prohibited without the expressed
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they refer to the ALRDC Seminar where it was first presented.
May 14, 2014
2014 ALRDC Seminar for New or Novel
Artificial Lift Technologies, Houston, Texas
9
Disclaimer
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May 14, 2014
2014 ALRDC Seminar for New or Novel
Artificial Lift Technologies, Houston, Texas
10