| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Perforation alignment tool for jet drilling, perforating and cleaning | US10961498 | 2004-10-08 | US07168491B2 | 2007-01-30 | Phillip G. Malone; Michael E. Murphy; Floyd H. Briscoe; William G. Buckman, Sr.; Carl B. Hale; Adam W. Sears |
| Method and apparatus are provided for pumping operations that may be used to form perforations in the casing of a well, clean perforations and drill drain holes through perforations. A plunger is placed in a reference perforation and the pumping operations may be performed through a nozzle at a known location with respect to the reference perforation. The nozzle may be attached to a flexible hose to drill a drain hole or may be inserted in a body on the bottom of a tubing string. Addition apparatus and method are provided to insure that the plunger or plungers are maintained in a reference perforation or perforations when pumping operations are carried out through tubing. | ||||||
| 182 | Method for simultaneous removal of asphaltine, and/or paraffin and scale from producing oil wells | US11092422 | 2005-03-29 | US20060219409A1 | 2006-10-05 | Richard Dyer |
| A method for cleaning oil wells to increase the flow of oil thereof by use of a unique aqueous cleaning emulsion comprising of water, hydrocarbon solvent, detergent and mineral acid. This one step method provides for the simultaneously cleaning/removal of asphaltine and/or paraffin and scale. This method can be used alone or with the assistance of a wash tool which is a combination pressure and surge wash tool having a nipple assembly. A by-pass port is coupled to the nipple assembly and a diverter cup is coupled to the by-pass port. A plurality of pressure wash cups are positioned on the tool. A pressure wash port is located between the plurality of pressure wash cups and a pump shoe assembly is coupled to a bottom pressure wash cup. | ||||||
| 183 | Acoustic stimulation tool with axial driver actuating moment arms on tines | US11059214 | 2005-02-16 | US20060180386A1 | 2006-08-17 | James Birchak; Thomas Ritter; Ali Mese; Diederik van Batenburg; William Trainor; Wei Han; Kwang Yoo; Daniel Kusmer; Mark Proett; Ferdinand van der Bas; Peter van der Sman; Jeroen Groenenboom; Pedro Zuiderwijk |
| An apparatus for generating acoustic waves, the apparatus having: a support structure; two tines extending from the support structure so that proximal ends of the two tines are attached to the support structure so that distal ends of the two tines are positioned with standoffs relative to a dimension of the support structure and the distal ends of the two tines are uninhibited, wherein the two tines each comprise a moment arm; and an oscillator in mechanical communication with the two tines. | ||||||
| 184 | Method and device for intensifying the permeability of ground layers close to bore holes and filter bodies and filter layers in wells and other produciton wells | US10541945 | 2004-01-08 | US20060137872A1 | 2006-06-29 | Alexander Steinbrecher; Karsten Kahle |
| The invention relates to a method for intensifying the permeability of ground layers close to bore holes and filter bodies and filter layers (W) in the underground extraction areas (F) of wells and other production drill holes (11) wherein liquid is continuously pumped away in the extraction area (F) of the drill hole (11) by means of an underground pump (8). The liquid which is thus displaced is successively impinged upon with hydraulic energy pulses (E) in the direction of the walls of the drill hole, filter bodies and filter layers (W) by continually moving a pulse generator (1) up and down in the area of extraction (F) The effect of each energy pulse (E) is evaluated by means of seismic measurements and the parameters of the following energy pulses (E) are determined according to the evaluation of the measuring result of the previous energy pulse (E). | ||||||
| 185 | Perforation alignment tool for jet drilling, perforating and cleaning | US10961498 | 2004-10-08 | US20060076137A1 | 2006-04-13 | Philip Malone; Michael Murphy; Floyd Briscoe; William Buckman; Carl Hale; Adam Sears |
| Method and apparatus are provided for pumping operations that may be used to form perforations in the casing of a well, clean perforations and drill drain holes through perforations. A plunger is placed in a reference perforation and the pumping operations may be performed through a nozzle at a known location with respect to the reference perforation. The nozzle may be attached to a flexible hose to drill a drain hole or may be inserted in a body on the bottom of a tubing string. Addition apparatus and method are provided to insure that the plunger or plungers are maintained in a reference perforation or perforations when pumping operations are carried out through tubing. | ||||||
| 186 | Well cleaning method and apparatus using detonating cord having additional reliability and a longer shelf life | US10964787 | 2004-10-13 | US20060076131A1 | 2006-04-13 | Bradley Challacombe |
| A Well Cleaning Method and Apparatus using detonating cord having Additional Reliability and a Longer Shelf Life is disclosed. The method and apparatus employs one or more subassembly, each subassembly having a combustible material, means for igniting the combustible material, and one or more high-strength sleeves attached around portions of the combustible material to attenuate the outwardly-directed pressure wave created by ignition of the combustible material. The assemblies further exhibit staggered detonation with the simultaneous application of electrical current to all assemblies. The combustible material is further modified to add an additional outer impervious layer such that the combustible material exhibits prolonged shelf life and durability. | ||||||
| 187 | System and method for monitoring and removing blockage in a downhole oil and gas recovery operation | US10878738 | 2004-06-28 | US20050284625A1 | 2005-12-29 | Paul Rodney; Jeroen Groenenboom; Wei Han; James Birchak; Denis Schmitt; Tim Geerits; Eugene Linyaev |
| A system and method for determining blockage in a wellbore containing fluid and/or in a formation adjacent the wellbore, according to which energy is generated in the fluid and variables associated with the energy are measured. | ||||||
| 188 | Providing a low pressure condition in a wellbore region | US10776997 | 2004-02-11 | US06966377B2 | 2005-11-22 | Ashley B. Johnson; Lawrence A. Behrmann; Wenbo Yang; Fokko Harm Cornelis Doornbosch; Ian C. Walton |
| An apparatus and method includes positioning a string in a wellbore, the string having a surge chamber. A closure member is provided below the well surface, with the surge chamber defined at least in part by the closure member. At least one port to the chamber is opened to create a fluid surge into the surge chamber and a local low pressure condition in a wellbore region. | ||||||
| 189 | Creating an underbalance condition in a wellbore | US10776153 | 2004-02-11 | US20040159432A1 | 2004-08-19 | Ashley B. Johnson; Lawrence A. Behrmann; Wenbo Yang; Fokko Harm Cornelis Doornbosch |
| An apparatus and method of perforating and surging a section of the wellbore includes running a perforating gun into the well on a string having an isolation valve above the perforating gun, closing the valve, and perforating the well with the isolation valve closed so that the formation is isolated from the well surface. An underbalance pressure is provided above the isolation valve, and then, the isolation valve is opened to surge the formation. | ||||||
| 190 | Well cleaning apparatus | US10478621 | 2003-11-17 | US20040134651A1 | 2004-07-15 | Scott Robert Challacombe |
| An apparatus for cleaning calcites and other extraneous matter from the perforated casing of a sub-terrainian water well comprises a plurality of elongate explosive members 14 for lowering into the well, detonators 16 for detonating each member 14 to produce an explosion which propagates longitudinally of the well, and a plurality of short tubular attenuators 19 circumscribing the explosive members 14 at intervals along the length thereof. Each tubular attenuator 19 comprises a steel tube 20 and an annular ring 21 extending around the tube at a point along the length thereof. The tensile strength of the tube 20 is arranged to be less than that of the force produced by the explosion, whereas the tensile strength of the ring 21 is arranged to be greater than that of the force produced by the explosion. The rings 21 thus serve to attenuate the pressure wave substantially more than tubes 20, thereby helping to produce a more pronounced attenuation. Furthermore, the shape and direction of the pressure wave of the explosion can be altered according to the relative positioning of the ring 21 on the tubes 20. | ||||||
| 191 | Controlling transient underbalance in a wellbore | US10316614 | 2002-12-11 | US06732798B2 | 2004-05-11 | Ashley B. Johnson; Lawrence A. Behrmann; Wenbo Yang; Fokko Harm Cornelis Doornbosch |
| A method and apparatus for controlling a transient underbalance condition is provided. Transient underbalance can be enhanced by using a porous material, such as a porous solid, around the explosive device. The porous material contains a volume to receive wellbore fluids in response to activation of the explosive device. This causes a local drop in pressure, which enhances the transient underbalance effect. In another application, it is desired to reduce the transient underbalance effect. This is accomplished by reducing the pressure drop generated as a result of explosive detonation. In one arrangement, the shot density is reduced by using solid masses. | ||||||
| 192 | Sand removal and device retrieval tool | US10388869 | 2003-03-14 | US20030226664A1 | 2003-12-11 | Corey E. Hoffman; Richard Lee Giroux; Mike A. Luke; Stephen J. Norris |
| The present invention provides a simple debris removal apparatus for use in a wellbore. In one aspect of the invention a modular, interchangeable venturi is provided which can be retrofit into an existing debris bailer having a filter and a debris collection container. In another aspect of the invention, a venturi is utilized to create a negative pressure in a wellbore sufficient to actuate a retrieval tool for a downhole device. In yet another aspect of the invention, a combination tool is provided which can evacuate debris in a wellbore, thereby uncovering a downhole device which can then be removed in a single trip. In yet another aspect of the invention, a debris removal apparatus is provided with a method for utilizing the apparatus in a wellbore on coiled tubing. | ||||||
| 193 | Sand removal and device retrieval tool | US10163814 | 2002-06-06 | US06640904B2 | 2003-11-04 | Corey E. Hoffman; Richard Lee Giroux; Mike A. Luke; Stephen J. Norris |
| A simple debris removal apparatus for use in a wellbore. In one aspect of the invention a modular, interchangeable venturi is provided which can be retrofit into an existing debris bailer having a filter and a debris collection container. In another aspect of the invention, a venturi is utilized to create a negative pressure in a wellbore sufficient to actuate a retrieval tool for a downhole device. In yet another aspect of the invention, a combination tool is provided which can evacuate debris in a wellbore, thereby uncovering a downhole device which can then be removed in a single trip. In yet another aspect of the invention, a debris removal apparatus is provided with a method for utilizing the apparatus in a wellbore on coiled tubing. | ||||||
| 194 | Reservoir communication with a wellbore | US09797209 | 2001-03-01 | US06598682B2 | 2003-07-29 | Ashley B. Johnson; James E. Brooks; Lawrence A. Behrmann; Adinathan Venkitaraman; Ian Walton; Anthony P. Vovers; Vladimir Vaynshteyn; Dinesh R. Patel; Michael W. Fruge |
| A method and apparatus for improving reservoir communication includes, in one arrangement, use of one or more chambers to create an underbalance condition and/or a fluid surge in the wellbore. In another arrangement, a tool string comprises a packer, a circulating valve, and an atmospheric chamber, in which the circulating valve, when open, is adapted to vent a lower wellbore region below the packer when the packer is set, and the atmospheric chamber is capable of being operated to create an underbalance condition below the packer. In yet another arrangement, an apparatus comprises a subsea wellhead equipment including a blow-out preventer, choke line filled with a low density fluid, and a kill line filled with a heavy fluid. The choke line is adapted to be opened to create an underbalance condition in the wellbore. In yet another arrangement, a method of creating an underbalance condition comprises controlling wellbore pressure at least in a perforating interval to achieve a target level, configuring a perforating gun to achieve a target detonation pressure in the perforating gun upon detonation, and creating an underbalance condition in the perforating interval of the wellbore when the perforating gun is shot. In yet another arrangement, a tool string for use in a wellbore extending from a well surface comprises a closure member adapted to be positioned below the well surface, and a chamber defined at least in part by the closure member. The tool string further comprises at least a port selectively openable to enable communication between the chamber and a wellbore region. The port when open creates a fluid surging to the chamber to provide a low pressure condition in the wellbore region. A tool in the tool string is adapted to perform an operation in the low pressure condition. | ||||||
| 195 | Controlling transient underbalance in a wellbore | US10316614 | 2002-12-11 | US20030089498A1 | 2003-05-15 | Ashley B. Johnson; Lawrence A. Behrmann; Wenbo Yang; Fokko Harm Cornelis |
| A method and apparatus for controlling a transient underbalance condition is provided. Transient underbalance can be enhanced by using a porous material, such as a porous solid, around the explosive device. The porous material contains a volume to receive wellbore fluids in response to activation of the explosive device. This causes a local drop in pressure, which enhances the transient underbalance effect. In another application, it is desired to reduce the transient underbalance effect. This is accomplished by reducing the pressure drop generated as a result of explosive detonation. In one arrangement, the shot density is reduced by using solid masses. | ||||||
| 196 | Method and apparatus for stimulating well production | US09841542 | 2001-04-24 | US06533035B2 | 2003-03-18 | James Troutt; Millard Lewis; Robert A. Ereth |
| A method and apparatus for enhancing the production of newly developed water wells and existing wells that have suffered a reduction in capacity due to plugging. A gas line directs gas under pressure to a relief valve carried in the production string at a location in the production zone of the well. When the applied pressure reaches the pressure setting of the relief valve, the valve opens to apply air sidewardly in bursts which create shock waves to dislodge built up material from the well screen and the surrounding filter pack and formation fractures. Following each burst, the pressure conditions create a flushing effect which draws water back into the well along with the bacteria and particles that were dislodged. A submersible pump or airlift assembly in the production string then delivers the dislodged materials to the surface. | ||||||
| 197 | Sand removal and device retrieval tool | US09536937 | 2000-03-27 | US06427776B1 | 2002-08-06 | Corey E. Hoffman; Richard Lee Giroux; Mike A. Luke; Stephen J. Norris |
| The present invention provides a simple debris removal apparatus for use in a wellbore. In one aspect of the invention a modular, interchangeable venturi is provided which can be retrofit into an existing debris bailer having a filter and a debris collection container. In another aspect of the invention, a venturi is utilized to create a negative pressure in a wellbore sufficient to actuate a retrieval tool for a downhole device. In yet another aspect of the invention, a combination tool is provided which can evacuate debris in a wellbore, thereby uncovering a downhole device which can then be removed in a single trip. In yet another aspect of the invention, a debris removal apparatus is provided with a method for utilizing the apparatus in a wellbore on coiled tubing. | ||||||
| 198 | Wellbottom fluid implosion treatment system | US09526179 | 2000-03-15 | US06296058B1 | 2001-10-02 | Emmet F. Brieger |
| A system for inducing implosion shock forces on perforation traversing earth formations with fluid pressure where an implosion tool is selected relative to a shut in well pressure and a tubing pressure to have a large and small area piston relationship in a well tool so that at a predetermined tubing pressure the pistons move a sufficient distance to open an implosion valve which permits a sudden release of well fluid pressure into the tubing string and produces an implosion force on the perforations. A pressure gauge on the well tool records tubing pressure and well pressure as a function of time. | ||||||
| 199 | Method and assembly for treating and producing a welbore using dual tubing strings | US962996 | 1997-11-02 | US6073696A | 2000-06-13 | Harvey Andrew Ellis |
| A method and assembly for treating a portion (e.g. horizontal) of a wellbore for removing solids and for producing fluids therefrom. The assembly is comprised of dual flowpaths (e.g. tubing strings) extend from the surface into the portion of the wellbore to be treated and produced. A liner is connected on the lower end of the first flowpath while the second flowpath terminates within the upper end of the wellbore portion. A treating fluid is flowed down the first flowpath and through the liner into the wellbore to wash and entrain solids therein. The treating fluid and solids are then circulated back to the surface through the second flowpath. After treatment, the second flowpath is closed and fluids are produced through the liner and to the surface through the first flowpath. | ||||||
| 200 | Method and apparatus for washing a horizontal wellbore with coiled tubing | US838901 | 1997-04-11 | US5865249A | 1999-02-02 | Larry J. Gipson; John C. Patterson |
| A method and apparatus for removing solids from a substantially horizontal section of a wellbore which allows the use of coiled tubing as a workstring without requiring the removal of the production tubing from the wellbore. Guide tubing, which is left in the wellbore, extends from the surface through the horizontal section and is adapted to guide a string of slightly smaller-diameter, coiled tubing through the horizontal section. Wash fluid, e.g. water, flows through a nozzle on the coiled tubing and out through openings in the guide tubing directly into the solids to form a slurry therewith. The slurry is then pumped out of the wellbore through the production tubing and/or reenters the guide tubing through other opening(s) therein to flow to the surface through the annulus which exists between the coiled tubing and the guide tubing. | ||||||
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