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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Echols; Ralph H.
Address:
Dallas, TX
No. of patents:
45
Patents:












Patent Number Title Of Patent Date Issued
RE41118 Annular isolators for expandable tubulars in wellbores February 16, 2010
The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is
7828068 System and method for thermal change compensation in an annular isolator November 9, 2010
In accordance with the teachings of the present invention, a system and method for forming an annular isolator between production tubing and a borehole wall is provided. A section of expandable tubing is installed in a borehole, and a sleeve disposed around a surface of the tubing co
7404437 Annular isolators for expandable tubulars in wellbores July 29, 2008
The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is
7363986 Annular isolators for expandable tubulars in wellbores April 29, 2008
The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is
7320367 Annular isolators for expandable tubulars in wellbores January 22, 2008
The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is
7252142 Annular isolators for expandable tubulars in wellbores August 7, 2007
The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is
7216706 Annular isolators for tubulars in wellbores May 15, 2007
The present disclosure addresses apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. A first deployable annular isolator is carried on tubing as it is positioned in a borehole. An annular isolator forming material is placed in
7108062 Expandable well screen September 19, 2006
An expandable well screen provides increased collapse, torsional and tensile strength. In a described embodiment, an expandable well screen includes a generally tubular base pipe and an external filtering media. The well screen is configured to have sufficient torsional and tensile s
7096945 Sand control screen assembly and treatment method using the same August 29, 2006
A sand control screen assembly (200) positionable within a production interval of a wellbore that traverses a subterranean hydrocarbon bearing formation comprises a base pipe (202) having openings (204) in a sidewall section thereof that allow fluid flow therethrough. A filter medium (21
7055598 Fluid flow control device and method for use of same June 6, 2006
A fluid flow control device (60) for use in a wellbore to control the inflow of production fluids comprises a sand control screen (62) having a base pipe (64) with a first set of openings (66) that allows the production fluids to flow therethrough and a sleeve (74) coaxially disposed
7048048 Expandable sand control screen and method for use of same May 23, 2006
An expandable sand control screen (100) that is positionable within a wellbore comprises a fluid permeable generally tubular member (102) that is expanded downhole. A filtering assembly is disposed exteriorly of the generally tubular member (102). The filtering assembly includes a filter
6994170 Expandable sand control screen assembly having fluid flow control capabilities and method for us February 7, 2006
A sand control screen assembly (60) comprises a base pipe (62) having at least one opening (64) that allows fluid flow therethrough and a filter medium (66) positioned about the exterior of the base pipe (62) that allows fluid flow therethrough and prevents particulate flow therethro
6941652 Methods of fabricating a thin-wall expandable well screen assembly September 13, 2005
An expandable well screen has a desirable thin-wall construction together with a simplified fabrication method. In fabricating the screen, a flexible sheet of metal mesh filter media is diffusion bonded to an inner side of a perforated metal sheet which is then deformed to a tubular shap
6899176 Sand control screen assembly and treatment method using the same May 31, 2005
A sand control screen assembly (40) and method for treating formations traversed by a wellbore (34) in a single trip are disclosed. The sand control screen assembly (40) includes a base pipe (56) with a plurality of openings (58) that allow fluid flow therethrough. A filter medium (62) i
6854522 Annular isolators for expandable tubulars in wellbores February 15, 2005
The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is
6854521 System and method for creating a fluid seal between production tubing and well casing February 15, 2005
A well completion system for creating a seal between a production tubing (30) and a well casing (34) positioned within a wellbore (32) comprises a production packer (46) that includes a section of the production tubing (30) and at least one seal element (60). The production tubing (30) i
6799686 Tubular filtration apparatus October 5, 2004
An expandable well screen has a desirable thin-wall construction together with a simplified fabrication method. In fabricating the screen, a flexible sheet of metal mesh filter media is diffusion bonded to an inner side of a perforated metal sheet which is then deformed to a tubular shap
6776241 Screen jacket assembly connection and methods of using same August 17, 2004
Disclosed are apparatus and methods for movably securing a radially expandable sand-control screen jacket assembly to a base pipe. The screen jacket assembly is connected to the base pipe with a longitudinally moveable, sand-controlling joint. In use, the joint slides maintain a sand
6619401 Methods of completing a subterranean well September 16, 2003
An expandable well screen has a desirable thin-wall construction together with a simplified fabrication method. In fabricating the screen, a flexible sheet of metal mesh filter media is diffusion bonded to an inner side of a perforated metal sheet which is then deformed to a tubular shap
6530431 Screen jacket assembly connection and methods of using same March 11, 2003
Disclosed are apparatus and methods for movably securing a radially expandable sand-control screen jacket assembly to a base pipe. The screen jacket assembly is connected to the base pipe with a longitudinally moveable, sand-controlling joint. In use, the joint slides maintain a sand
6457518 Expandable well screen October 1, 2002
An expandable well screen provides increased collapse, torsional and tensile strength. In a described embodiment, an expandable well screen includes a generally tubular base pipe and an external filtering media. The well screen is configured to have sufficient torsional and tensile s
6415509 Methods of fabricating a thin-wall expandable well screen assembly July 9, 2002
An expandable well screen has a desirable thin-wall construction together with a simplified fabrication method. In fabricating the screen, a flexible sheet of metal mesh filter media is diffusion bonded to an inner side of a perforated metal sheet which is then deformed to a tubular shap
6202742 Pack-off device for use in a wellbore having a packer assembly located therein March 20, 2001
The present invention provides a gravel pack assembly for use in a wellbore having a packer positioned therein with a minimum inside diameter and a primary packing seal. In one embodiment, the gravel pack assembly comprises a pack-off conduit that is coupable to the packer. The pack-off
6155342 Proppant containment apparatus December 5, 2000
A proppant containment apparatus and associated method of using the apparatus permit continued delivery of a proppant slurry to a subterranean wellbore after failure of a crossover portion of the apparatus during a fracturing operation, eliminating the need to stop the fracturing ope
6125932 Tortuous path sand control screen and method for use of same October 3, 2000
A tortuous path sand control screen (40) for reducing the velocity of particles (66) traveling therethrough is disclosed. The tortuous path sand control screen (40) comprises a base pipe (42) and a screen wire (48) wrapped therearound having turns (50, 52, 54) which extend along at least
6109356 Well completion tool having pressure relief capability incorporated therein and associated metho August 29, 2000
A well tool is disclosed, which includes features that enhance the reliability and safety of wellsite operations. In one disclosed embodiment, a pressure relief device is incorporated in a well completion tool. The pressure relief device is in fluid communication with fluid delivery
6059033 Apparatus for completing a subterranean well and associated methods May 9, 2000
Apparatus for completing a subterranean well and associated methods provide economical and efficient well completions. In one described embodiment, a well completion apparatus includes a packer which is settable by application of a compressive axial force thereto. The packer sealingly
6056061 Apparatus for completing a subterranean well and associated methods May 2, 2000
Apparatus for completing a subterranean well and associated methods provide economical and efficient well completions. In one described embodiment, a well completion apparatus includes a packer which is settable by application of a compressive axial force thereto. The packer sealingly
6056052 Retrievable torque-through packer having high strength and reduced cross-sectional area May 2, 2000
A packer for use in subterranean wellbores provides efficient utilization of its cross-sectional area with mechanisms therein for anchoring, sealing, and torquing through the packer. In a preferred embodiment, a retrievable packer has a tubular mandrel, rubbers disposed on the mandrel,
6053250 Gravel pack apparatus April 25, 2000
A gravel pack apparatus and associated method of completing subterranean wells provides convenient and economical gravel packing operations, permitting a sand control screen to be run into the well attached to the apparatus which is, in turn, attached to production tubing, and further
6053246 High flow rate formation fracturing and gravel packing tool and associated methods April 25, 2000
A formation fracturing and gravel packing tool and associated methods provide high flow rates and volumes of slurry delivery in a relatively small bore well. In a described embodiment, a formation fracturing tool has a telescoping travel joint and a washpipe within an assembly including
6032735 Gravel pack apparatus March 7, 2000
A gravel pack apparatus and associated method of completing subterranean wells provides convenient and economical gravel packing operations, permitting a sand control screen to be run into the well attached to the apparatus which is, in turn, attached to production tubing, and further
6003607 Wellbore equipment positioning apparatus and associated methods of completing wells December 21, 1999
Well completion apparatus and associated methods of completing wells provides repositioning of sand control screens and perforating guns without requiring movement of a packer in the wellbore. In a preferred embodiment, a well completion apparatus has a packer, a release apparatus, a
5971070 Apparatus for completing a subterranean well and associated methods October 26, 1999
Apparatus for completing a subterranean well and associated methods provide economical and efficient well completions. In one described embodiment, a well completion apparatus includes a packer which is settable by application of a compressive axial force thereto. The packer sealingly
5960884 Gravel pack apparatus October 5, 1999
A gravel pack apparatus and associated method of completing subterranean wells provides convenient and economical gravel packing operations, permitting a sand control screen to be run into the well attached to the apparatus which is, in turn, attached to production tubing, and further
5960879 Methods of completing a subterranean well October 5, 1999
A gravel pack apparatus and associated method of completing subterranean wells provides convenient and economical gravel packing operations, permitting a sand control screen to be run into the well attached to the apparatus which is, in turn, attached to production tubing, and further
5938925 Progressive gap sand control screen and process for manufacturing the same August 17, 1999
A progressive gap sand control screen comprising a plurality of parallel ribs spaced around an axis and a screen wire wrapped around the plurality of ribs having turns which extend along the length of the plurality of ribs such that adjacent turns have gaps therebetween, the gaps forming
5931232 Mechanical connection between base pipe and screen and method for use of the same August 3, 1999
An apparatus for attaching a sand-control screen jacket to a base pipe comprising a base pipe connector securably engaged with the sand-control screen jacket. The base pipe connector having a plurality of protrusions for mechanically securing the base pipe connector to the base pipe ther
5884699 Retrievable torque-through packer having high strength and reduced cross-sectional area March 23, 1999
A packer for use in subterranean wellbores provides efficient utilization of its cross-sectional area with mechanisms therein for anchoring, sealing, and torquing through the packer. In a preferred embodiment, a retrievable packer has a tubular mandrel, rubbers disposed on the mandrel,
5857521 Method of using a retrievable screen apparatus January 12, 1999
A retrievable screen apparatus provides increased filtration in a retrievable screen disposed within a receptacle, the receptacle being positioned in a subterranean well. The receptacle has a lower filtration screen attached thereto for filtering larger particles, such as gravel and
5842522 Mechanical connection between base pipe and screen and method for use of the same December 1, 1998
An apparatus for attaching a sand-control screen jacket to a base pipe comprising a base pipe connector securably engaged with the sand-control screen jacket, an internal slip member slidably disposed between the base pipe connector and the base pipe and a jam nut securably engaging the
5810084 Gravel pack apparatus September 22, 1998
A gravel pack apparatus and associated method of completing subterranean wells provides convenient and economical gravel packing operations, permitting a sand control screen to be run into the well attached to the apparatus which is, in turn, attached to production tubing, and further
5803179 Screened well drainage pipe structure with sealed, variable length labyrinth inlet flow control September 8, 1998
A drainage pipe section for a horizontal subterranean well has a base pipe coaxially circumscribed by a tubular structure having a longitudinally intermediate portion defined by a sand screen assembly. An annular flow passage is formed between the base pipe and the tubular structure and
5787985 Proppant containment apparatus and methods of using same August 4, 1998
A proppant containment apparatus and associated method of using the apparatus permit continued delivery of a proppant slurry to a subterranean wellbore after failure of a crossover portion of the apparatus during a fracturing operation, eliminating the need to stop the fracturing ope
5762137 Retrievable screen apparatus and methods of using same June 9, 1998
A retrievable screen apparatus provides increased filtration in a retrievable screen disposed within a receptacle, the receptacle being positioned in a subterranean well. The receptacle has a lower filtration screen attached thereto for filtering larger particles, such as gravel and










 
 
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