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HOW WOULD YOU CONTROL THE HIGH PRESSURE OF WELL EFFLUENT DIRECTLY FROM DOWNHOLE?

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Question added by clinton chigbu , Well Test, Field/Maintenance Specialist/ Field Operator , SCHLUMBERGER NIGERIA LIMITED
Date Posted: 2015/08/10
Mohammad Tahsin Khan
by Mohammad Tahsin Khan , Field Professional - Testing & Subsea , Halliburton International GMBH

During well testing (DST) we can always bleed off the annulus pressure and close the Select Tester Valve.  

Khaled El Amiri
by Khaled El Amiri , Global Senior Well Testing Engineer , BP Exploration Operating Co. Ltd

Control of high pressure of weel efflunet directly from downhole by downhole DST or Completion valves

Mahir Brahimi
by Mahir Brahimi , Well testing engineer , Schlumberger - Algeria

High pressure of well effluent can be controled right from Dwownhole by the Downhole valves 

Lyes HADJ BENAMANE
by Lyes HADJ BENAMANE , Reservoir Engineer , Sonatrach-Algeria

 

Choke change to decrease the high pressure of the bottom

TAHIR ABBAS
by TAHIR ABBAS , Production Operator , Pakistan Petroleum Ltd.

During drilling phase, we have Primary and Secondary barrier.

Primary Barrier is mud weight.

Secondary Barrier is BOP.

 

During production phase, we control the effluent pressure through choke.

KESTER OJEAH
by KESTER OJEAH , Field operator , Eunisell solution

i can control high pressure through my choke manifold

High pressure well effluent can be controlled with he choke manifold using a small choke size

Mahendran  Thangaraj
by Mahendran Thangaraj , Services, Testing and Commissioning Engineer , Boustead controls and electrics pvt ltd

normally downstream having three levels of valve 

1.SSSV( sub surface safety valve )2. SSV-(surface safety valve) 3. Wing/Master valve

Down stream pressure control by SSSV which is controlled by well head control systems. 

Guido Fava
by Guido Fava , Reserve Certifier , FAVA

The most simple way to control high pressure from downhole is to use a downhole choke. in special cases, an intellignet completion would be used.

mohamed salah
by mohamed salah , senior operator , sahara petroleum service company

we can control the well effluent by choke manifold as a first control way.

clinton chigbu
by clinton chigbu , Well Test, Field/Maintenance Specialist/ Field Operator , SCHLUMBERGER NIGERIA LIMITED

the high pressure of well effluent can be controlled by flowing the well at different rates using choke manifold of different choke bean sizes or through a choke valve.

Also high pressure of well effluent could be controlled by injecting pressure reducing fluid and by installation of BOP (Blow Out Preventer) 

Thirdly by using a Down hole safety valve

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