WO2007081711A3 - Method for determining formation fluid entry into or drilling fluid loss from a borehole using a dynamic annular pressure control system - Google Patents

Method for determining formation fluid entry into or drilling fluid loss from a borehole using a dynamic annular pressure control system Download PDF

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Publication number
WO2007081711A3
WO2007081711A3 PCT/US2007/000088 US2007000088W WO2007081711A3 WO 2007081711 A3 WO2007081711 A3 WO 2007081711A3 US 2007000088 W US2007000088 W US 2007000088W WO 2007081711 A3 WO2007081711 A3 WO 2007081711A3
Authority
WO
WIPO (PCT)
Prior art keywords
borehole
pressure
drilling fluid
fluid
annular space
Prior art date
Application number
PCT/US2007/000088
Other languages
French (fr)
Other versions
WO2007081711A2 (en
Inventor
Donald G Reitsma
Original Assignee
At Balance Americas Llc
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 At Balance Americas Llc filed Critical At Balance Americas Llc
Priority to MX2008008658A priority Critical patent/MX2008008658A/en
Priority to EA200870156A priority patent/EA015325B1/en
Priority to BRPI0706315-6A priority patent/BRPI0706315B1/en
Priority to CA2635097A priority patent/CA2635097C/en
Priority to EP07717755A priority patent/EP1969204A4/en
Priority to AU2007205225A priority patent/AU2007205225B2/en
Publication of WO2007081711A2 publication Critical patent/WO2007081711A2/en
Publication of WO2007081711A3 publication Critical patent/WO2007081711A3/en
Priority to EG2008071134A priority patent/EG26269A/en
Priority to NO20083419A priority patent/NO343086B1/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
    • 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
    • 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
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • E21B21/106—Valve arrangements outside the borehole, e.g. kelly valves

Abstract

A method for controlling formation pressure during drilling includes pumping a drilling fluid through a drill string in a borehole, out a drill bit at the end of the drill string into an annular space. The drilling fluid is discharged from the annular space proximate the Earth's surface. At least one of a flow rate of the drilling fluid into the borehole and a fluid flow rate out of the annular space is measured. Pressure of the fluid in the annular space proximate the Earth's surface and pressure of the fluid proximate the bottom of the borehole are measured. Pressure of the fluid proximate the bottom of the borehole is estimated using the measured flow rate, annular space pressure and density of the drilling fluid. A warning signal is generated if difference between the estimated pressure and measured pressure exceeds a selected threshold.
PCT/US2007/000088 2006-01-05 2007-01-04 Method for determining formation fluid entry into or drilling fluid loss from a borehole using a dynamic annular pressure control system WO2007081711A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
MX2008008658A MX2008008658A (en) 2006-01-05 2007-01-04 Method for determining formation fluid entry into or drilling fluid loss from a borehole using a dynamic annular pressure control system.
EA200870156A EA015325B1 (en) 2006-01-05 2007-01-04 Method for determining formation fluid entry into or drilling fluid loss from a borehole using a dynamic annular pressure control system
BRPI0706315-6A BRPI0706315B1 (en) 2006-01-05 2007-01-04 "METHOD FOR DETERMINING A WELL CONTROL EVENT"
CA2635097A CA2635097C (en) 2006-01-05 2007-01-04 Method for determining formation fluid entry into or drilling fluid loss from a borehole using a dynamic annular pressure control system
EP07717755A EP1969204A4 (en) 2006-01-05 2007-01-04 Method for determining formation fluid entry into or drilling fluid loss from a borehole using a dynamic annular pressure control system
AU2007205225A AU2007205225B2 (en) 2006-01-05 2007-01-04 Method for determining formation fluid entry into or drilling fluid loss from a borehole using a dynamic annular pressure control system
EG2008071134A EG26269A (en) 2006-01-05 2008-07-03 Method for determining formation fluid entry into or drilling fluid loss from a borehole using a dynamic annular pressure control system
NO20083419A NO343086B1 (en) 2006-01-05 2008-08-05 Determination of inflow of formation fluid into or from drilling fluid loss from a borehole using a dynamic annular pressure control system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75631106P 2006-01-05 2006-01-05
US60/756,311 2006-01-05

Publications (2)

Publication Number Publication Date
WO2007081711A2 WO2007081711A2 (en) 2007-07-19
WO2007081711A3 true WO2007081711A3 (en) 2008-02-21

Family

ID=38256879

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/000088 WO2007081711A2 (en) 2006-01-05 2007-01-04 Method for determining formation fluid entry into or drilling fluid loss from a borehole using a dynamic annular pressure control system

Country Status (11)

Country Link
US (1) US7562723B2 (en)
EP (1) EP1969204A4 (en)
AU (1) AU2007205225B2 (en)
BR (1) BRPI0706315B1 (en)
CA (1) CA2635097C (en)
EA (1) EA015325B1 (en)
EG (1) EG26269A (en)
MX (1) MX2008008658A (en)
MY (1) MY144145A (en)
NO (1) NO343086B1 (en)
WO (1) WO2007081711A2 (en)

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Also Published As

Publication number Publication date
NO20083419L (en) 2008-08-05
AU2007205225B2 (en) 2010-11-11
US20070151762A1 (en) 2007-07-05
EA200870156A1 (en) 2008-12-30
EG26269A (en) 2013-06-05
NO343086B1 (en) 2018-10-29
MY144145A (en) 2011-08-15
CA2635097C (en) 2011-08-09
BRPI0706315B1 (en) 2018-02-06
EA015325B1 (en) 2011-06-30
EP1969204A2 (en) 2008-09-17
MX2008008658A (en) 2008-11-28
BRPI0706315A2 (en) 2011-03-22
EP1969204A4 (en) 2012-12-26
WO2007081711A2 (en) 2007-07-19
AU2007205225A1 (en) 2007-07-19
US7562723B2 (en) 2009-07-21
CA2635097A1 (en) 2007-07-19

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