US Patent Application No: 2007/0151,762

Number of patents in Portfolio can not be more than 2000

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

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

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.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
SMITH INTERNATIONAL, INC.HOUSTON, TX822

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Reitsma, Donald G Katy, TX 10 78

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2005/0269,135 Continuous positive flow backflash prevention system 4 2004
 
SMITH INTERNATIONAL, INC. (7)
* 2003/0196,804 Dynamic annular pressure control apparatus and method 3 2003
* 6,904,981 Dynamic annular pressure control apparatus and method 76 2003
* 2004/0178,003 Dynamic annular pressure control apparatus and method 7 2004
* 7,185,719 Dynamic annular pressure control apparatus and method 33 2004
* 2007/0151,763 Drilling system and method 3 2004
* 7,350,597 Drilling system and method 36 2004
* 2006/0175,090 Drilling system and method 2 2006
 
WEATHERFORD CANADA PARTNERSHIP (1)
* 2006/0207,795 Method of dynamically controlling open hole pressure in a wellbore using wellhead pressure control 19 2005
 
TDE THORNHAUSER DATA ENGINEERING GMBH (1)
* 6,820,702 Automated method and system for recognizing well control events 72 2002
 
Vareo Shaffer, Inc. (1)
* 6,527,062 Well drilling method and system 39 2002
 
Voith Sulzer Papiermaschinen GmbH (1)
* 2003/0024,737 System for controlling the operating pressures within a subterranean borehole 2 2001
 
Secure Drilling International, L.P. (1)
* 2006/0113,110 Drilling system and method 6 2005
 
COOPER CAMERON CORPORATION (1)
* 4,630,675 Drilling choke pressure limiting control system 19 1985
 
EXPRO AMERICAS, L.P. (1)
* 2005/0092,523 Well pressure control system 50 2004
 
THE TEXAS A&M UNIVERSITY SYSTEM (1)
* 6,394,195 Methods for the dynamic shut-in of a subsea mudlift drilling system 19 2000
 
BAKER HUGHES INCORPORATED (1)
* 2006/0124,352 Control systems and methods for active controlled bottomhole pressure systems 9 2005
 
Dual Gradient Systems, LLC (1)
* 2006/0070,772 Method for varying the density of drilling fluids in deep water oil and gas drilling applications 32 2005
 
Varco I/P, Inc. (2)
* 2003/0168,258 Method and system for controlling well fluid circulation rate 12 2002
* 2004/0144,565 Method and apparatus for directly controlling pressure and position associated with an adjustable choke apparatus 2 2003
 
Warren Automatic Tool Company (1)
* 4,355,784 Method and apparatus for controlling back pressure 54 1980
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
HALLIBURTON ENERGY SERVICES, INC. (2)
9,080,407 Pressure and flow control in drilling operations 0 2012
* 2013/0133,948 USE OF DOWNHOLE PRESSURE MEASUREMENTS WHILE DRILLING TO DETECT AND MITIGATE INFLUXES 0 2012
 
SMITH INTERNATIONAL, INC. (7)
* 8,490,719 Method and apparatus for controlling bottom hole pressure in a subterranean formation during rig pump operation 3 2007
* 2010/0288,507 METHOD AND APPARATUS FOR CONTROLLING BOTTOM HOLE PRESSURE IN A SUBTERRANEAN FORMATION DURING RIG PUMP OPERATION 2 2007
* 8,567,525 Method for determining fluid control events in a borehole using a dynamic annular pressure control system 1 2010
* 2011/0042,076 METHOD FOR DETERMINING FLUID CONTROL EVENTS IN A BOREHOLE USING A DYNAMIC ANNULAR PRESSURE CONTROL SYSTEM 1 2010
* 8,757,272 Method and apparatus for precise control of wellbore fluid flow 1 2010
* 2012/0067,591 METHOD AND APPARATUS FOR PRECISE CONTROL OF WELLBORE FLUID FLOW 3 2010
* 9,284,799 Method for drilling through nuisance hydrocarbon bearing formations 0 2011
 
TRANSOCEAN OFFSHORE DRILLING (4)
7,866,399 Apparatus and method for managed pressure drilling 18 2006
* 2007/0095,540 Apparatus and method for managed pressure drilling 32 2006
8,631,874 Apparatus and method for managed pressure drilling 1 2011
* 2011/0108,282 Apparatus and Method for Managed Pressure Drilling 6 2011
 
M-I L.L.C. (2)
* 8,994,389 Automated electrical stability meter 0 2008
* 2010/0283,492 AUTOMATED ELECTRICAL STABILITY METER 1 2008
 
Managed Pressure Operations PTE Ltd. (5)
8,210,266 Drill pipe 0 2009
9,284,800 Drill pipe connector 0 2010
9,051,803 Apparatus for and method of drilling a subterranean borehole 0 2010
8,360,170 Method of drilling a subterranean borehole 0 2010
8,684,109 Drilling method for drilling a subterranean borehole 0 2011
 
AT-BALANCE AMERICAS LLC (1)
* 2007/0227,774 Method for Controlling Fluid Pressure in a Borehole Using a Dynamic Annular Pressure Control System 10 2007
 
SCHLUMBERGER TECHNOLOGY CORPORATION (5)
* 7,857,046 Methods for obtaining a wellbore schematic and using same for wellbore servicing 1 2006
* 2007/0277,975 METHODS FOR OBTAINING A WELLBORE SCHEMATIC AND USING SAME FOR WELLBORE SERVICING 1 2006
* 8,757,254 Adjustment of mud circulation when evaluating a formation 0 2010
* 2011/0198,076 ADJUSTMENT OF MUD CIRCULATION WHEN EVALUATING A FORMATION 0 2010
* 2013/0049,983 METHOD FOR CALIBRATING A HYDRAULIC MODEL 2 2012
 
NCH CORPORATION (1)
7,823,656 Method for monitoring drilling mud properties 6 2009
 
BP CORPORATION NORTH AMERICA INC. (2)
7,950,451 Annulus mud flow rate measurement while drilling and use thereof to detect well dysfunction 4 2009
* 2010/0258,303 ANNULUS MUD FLOW RATE MEASUREMENT WHILE DRILLING AND USE THEREOF TO DETECT WELL DYSFUNCTION 2 2009
* Cited By Examiner