WO2013030050A3 - Method and system for drilling with reduced surface pressure - Google Patents

Method and system for drilling with reduced surface pressure Download PDF

Info

Publication number
WO2013030050A3
WO2013030050A3 PCT/EP2012/066293 EP2012066293W WO2013030050A3 WO 2013030050 A3 WO2013030050 A3 WO 2013030050A3 EP 2012066293 W EP2012066293 W EP 2012066293W WO 2013030050 A3 WO2013030050 A3 WO 2013030050A3
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
well
annular region
well annulus
drilling
Prior art date
Application number
PCT/EP2012/066293
Other languages
French (fr)
Other versions
WO2013030050A2 (en
Inventor
Ola M. Vestavik
Original Assignee
Reelwell As
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Reelwell As filed Critical Reelwell As
Priority to AU2012301145A priority Critical patent/AU2012301145A1/en
Priority to CA2846455A priority patent/CA2846455A1/en
Priority to BR112014004368A priority patent/BR112014004368A2/en
Priority to CN201280053006.4A priority patent/CN104040107A/en
Priority to US14/240,736 priority patent/US20140190751A1/en
Priority to EP12750589.9A priority patent/EP2751374A2/en
Publication of WO2013030050A2 publication Critical patent/WO2013030050A2/en
Publication of WO2013030050A3 publication Critical patent/WO2013030050A3/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/122—Multiple string packers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/18—Pipes provided with plural fluid passages
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
    • E21B17/203—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables with plural fluid passages
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
    • E21B21/082—Dual gradient systems, i.e. using two hydrostatic gradients or drilling fluid densities

Abstract

A drilling method includes arranging a dual drill string (20) having an inlet fluid conduit (9) and a return fluid conduit (10) in a well (14) formed in a subsurface formation such that a well annulus (22) is formed between the dual drill string (20) and a wall (21) of the well (14). A divider element (3) is disposed in the well annulus (22) to divide the well annulus (22) into an upper annular region (5) extending above the divider element (3) to a surface of the well annulus (22) and a lower annular region (12) extending below the divider element (3) towards a bottom of the well annulus (22). The lower annular region (12) contains a first fluid (25). A second fluid (27) is fed into the upper annular region (5). The method includes configuring the second fluid such that the density of the second fluid (27) is greater than the density of the first fluid (25).
PCT/EP2012/066293 2011-08-31 2012-08-22 Method and system for drilling with reduced surface pressure WO2013030050A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2012301145A AU2012301145A1 (en) 2011-08-31 2012-08-22 Method and system for drilling with reduced surface pressure
CA2846455A CA2846455A1 (en) 2011-08-31 2012-08-22 Method and system for drilling with reduced surface pressure
BR112014004368A BR112014004368A2 (en) 2011-08-31 2012-08-22 drilling method and system
CN201280053006.4A CN104040107A (en) 2011-08-31 2012-08-22 Method and system for drilling with reduced surface pressure
US14/240,736 US20140190751A1 (en) 2011-08-31 2012-08-22 Method and System for Drilling with Reduced Surface Pressure
EP12750589.9A EP2751374A2 (en) 2011-08-31 2012-08-22 Method and system for drilling with reduced surface pressure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20111179 2011-08-31
NO20111179A NO338637B1 (en) 2011-08-31 2011-08-31 Pressure control using fluid on top of a piston

Publications (2)

Publication Number Publication Date
WO2013030050A2 WO2013030050A2 (en) 2013-03-07
WO2013030050A3 true WO2013030050A3 (en) 2013-10-03

Family

ID=46724420

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/066293 WO2013030050A2 (en) 2011-08-31 2012-08-22 Method and system for drilling with reduced surface pressure

Country Status (8)

Country Link
US (1) US20140190751A1 (en)
EP (1) EP2751374A2 (en)
CN (1) CN104040107A (en)
AU (1) AU2012301145A1 (en)
BR (1) BR112014004368A2 (en)
CA (1) CA2846455A1 (en)
NO (1) NO338637B1 (en)
WO (1) WO2013030050A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO325291B1 (en) * 2004-03-08 2008-03-17 Reelwell As Method and apparatus for establishing an underground well.
BR112012031228B1 (en) * 2010-06-25 2020-02-18 Reelwell As METHOD OF DRILLING A WELL AND DRILLING DEVICE
US10428634B2 (en) * 2015-09-30 2019-10-01 Islander, LLC Water jet mining system and method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994013925A1 (en) * 1992-12-16 1994-06-23 Rogalandsforskning A device for drilling holes in the crust of the earth, especially for drilling oil wells
US20050103527A1 (en) * 2003-11-13 2005-05-19 Church Kris L. Dual wall drill string assembly
WO2010039042A2 (en) * 2008-10-01 2010-04-08 Reelwell As Down hole valve device
WO2010039043A1 (en) * 2008-10-01 2010-04-08 Reelwell As Downhole tool unit

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* Cited by examiner, † Cited by third party
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WO1994013925A1 (en) * 1992-12-16 1994-06-23 Rogalandsforskning A device for drilling holes in the crust of the earth, especially for drilling oil wells
US20050103527A1 (en) * 2003-11-13 2005-05-19 Church Kris L. Dual wall drill string assembly
WO2010039042A2 (en) * 2008-10-01 2010-04-08 Reelwell As Down hole valve device
WO2010039043A1 (en) * 2008-10-01 2010-04-08 Reelwell As Downhole tool unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WOJCIECH STANISLAW CHRZANOWSKI: "Managed Pressure Drilling from Floaters: Feasibility Studies for Applying Managed Pressure Drilling from a floater on the Skarv/Idun field on the Norwegian Continental Shelf by PGNiG Norway AS", 15 June 2011 (2011-06-15), pages 1 - 130, XP055074979, Retrieved from the Internet <URL:http://brage.bibsys.no/uis/bitstream/URN:NBN:no-bibsys_brage_40739/1/Chrzanowski,Wojciech.pdf> [retrieved on 20130813] *

Also Published As

Publication number Publication date
EP2751374A2 (en) 2014-07-09
NO20111179A1 (en) 2013-03-01
BR112014004368A2 (en) 2017-03-28
WO2013030050A2 (en) 2013-03-07
CA2846455A1 (en) 2013-03-07
AU2012301145A1 (en) 2014-04-10
NO338637B1 (en) 2016-09-26
US20140190751A1 (en) 2014-07-10
CN104040107A (en) 2014-09-10

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