子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Multi-position valve for fracturing and sand control and associated completion methods | US11840011 | 2007-08-16 | US07971646B2 | 2011-07-05 | Douglas J. Murray; Robert S. O'Brien; Peter J. Fay; Sean L. Gaudette |
| A completion tubular is placed in position adjacent the zone or zones to be fractured and produced. It features preferably sliding sleeve valves that can assume at least two configurations: wide open and open with a screen material juxtaposed in the flow passage. In a preferred embodiment the valve assembly has three positions, adding a fully closed position to the other two mentioned. After run in, the valves can be put in the wide open position in any order desired to fracture. After fracturing, the valves can be closed or selectively be put in filtration position for production from the fractured zones in any desired order. Various ways are described to actuate the valves. The tubular can have telescoping pistons through which the fracturing can take place if the application calls for a cemented tubular. Alternatively, the tubular can be in open hole and simply have openings for passage of fracture fluid and external isolators to allow fracturing in any desired order. | ||||||
| 82 | Multi-Position Valve for Fracturing and Sand Control and Associated Completion Methods | US13015323 | 2011-01-27 | US20110120726A1 | 2011-05-26 | Douglas J. Murray; Robert S. O'Brien; Peter J. Fay; Sean L. Gaudette |
| A completion tubular is placed in position adjacent the zone or zones to be fractured and produced. It features preferably sliding sleeve valves that can assume at least two configurations: wide open and open with a screen material juxtaposed in the flow passage. In a preferred embodiment the valve assembly has three positions, adding a fully closed position to the other two mentioned. After run in, the valves can be put in the wide open position in any order desired to fracture. After fracturing, the valves can be closed or selectively be put in filtration position for production from the fractured zones in any desired order. Various ways are described to actuate the valves. The tubular can have telescoping pistons through which the fracturing can take place if the application calls for a cemented tubular. Alternatively, the tubular can be in open hole and simply have openings for passage of fracture fluid and external isolators to allow fracturing in any desired order. | ||||||
| 83 | Permeable medium flow control devices for use in hydrocarbon production | US11875584 | 2007-10-19 | US07918272B2 | 2011-04-05 | Sean L. Gaudette; Michael H. Johnson |
| An in-flow control device controls fluid flow into a wellbore tubular using a permeable medium positioned in a flow space. The permeable medium induces a predetermined pressure differential in the flow space. The permeable medium may include separate elements having interstitial spaces and/or solid porous members. In arrangements, a filtration element may be positioned upstream of the flow space. In arrangements, the flow space may be formed in a plug member associated with the housing. In certain embodiments, a flow restriction element, such as a check valve, in the housing may provide parallel fluid communication with the bore of the wellbore tubular. Additionally, an occlusion body may be positioned in the flow space and configured to disintegrate upon exposure to a preset condition. The occlusion body temporarily seals the flow space so that a bore of the tubular may be pressurized. | ||||||
| 84 | Apparatus for Providing a Temporary Degradable Barrier in a Flow Pathway | US12328449 | 2008-12-04 | US20090078408A1 | 2009-03-26 | Bennett M. Richard; Paul McElfresh; Chad Williams |
| A flow conduit may have at least one orifice is in the vicinity of a flow source. The source is at least partially covered (and flow blocked by) an optional temporary coating or barrier. The flow pathway between the orifice and the source is temporarily blocked with a degradable material or barrier. The material disintegrates (e.g. under the influence of time or temperature) to optionally produce a product that removes the temporary coating in the area adjacent the barrier. The method is useful in one non-limiting context of recovering hydrocarbons where the flow conduit is the casing or liner of the well and the flow source is a subterranean reservoir where the temporary coating is a filter cake. | ||||||
| 85 | Multi-Position Valve for Fracturing and Sand Control and Associated Completion Methods | US11840011 | 2007-08-16 | US20090044944A1 | 2009-02-19 | Douglas J. Murray; Robert S. O'Brien; Peter J. Fay; Sean L. Gaudette |
| A completion tubular is placed in position adjacent the zone or zones to be fractured and produced. It features preferably sliding sleeve valves that can assume at least two configurations: wide open and open with a screen material juxtaposed in the flow passage. In a preferred embodiment the valve assembly has three positions, adding a fully closed position to the other two mentioned. After run in, the valves can be put in the wide open position in any order desired to fracture. After fracturing, the valves can be closed or selectively be put in filtration position for production from the fractured zones in any desired order. Various ways are described to actuate the valves. The tubular can have telescoping pistons through which the fracturing can take place if the application calls for a cemented tubular. Alternatively, the tubular can be in open hole and simply have openings for passage of fracture fluid and external isolators to allow fracturing in any desired order. | ||||||
| 86 | Systems and methods for installation, design and operation of groundwater monitoring systems in boreholes | US11178055 | 2005-07-08 | US20070007005A1 | 2007-01-11 | Noah Heller; Hiroyoki Atsumi; Masaru Toida; Toru Chino |
| Systems and methods for installation and operation of a groundwater monitoring system in a borehole of any angle using a coaxial gas displacement pump with a unique O-ring assembly that serves as a two-position valve for groundwater purging and sampling and also as a housing and sealing mechanism for isolating an optical pressure sensor. The optical sensor measures in-situ hydraulic pressure directly subjacent and adjacent to the surrounding rock fractures and sediment pores without hydraulic interferences from potentiometric equilibration lag time from recovery fluid pressure inside a borehole, in a zone above the optical sensor, or on the inside of a riser pipe that rises to the ground surface. | ||||||
| 87 | Permeable cement composition and method for preparing the same | US11069086 | 2005-03-01 | US07052543B2 | 2006-05-30 | Philip D. Nguyen; Johnny A. Barton |
| The current invention provides an improved permeable cement composition for formation of downhole sand screens. The improved composition includes an effective amount of a surfactant. Addition of the surfactant to the permeable cement composition yields at least a pumpable slurry with a minimal amount of water or brine solution. | ||||||
| 88 | Permeable cement composition and method for preparing the same | US11069086 | 2005-03-01 | US20050145141A1 | 2005-07-07 | Philip Nguyen; Johnny Barton |
| The current invention provides an improved permeable cement composition for formation of downhole sand screens. The improved composition includes an effective amount of a surfactant. Addition of the surfactant to the permeable cement composition yields at least a pumpable slurry with a minimal amount of water or brine solution. | ||||||
| 89 | Method for providing a temporary barrier in a flow pathway | US10968534 | 2004-10-19 | US20050092363A1 | 2005-05-05 | Bennett Richard; Paul McElfresh; Chad Williams |
| A flow conduit may have at least one orifice is in the vicinity of a flow source. The source is at least partially covered (and flow blocked by) an optional temporary coating or barrier. The flow pathway between the orifice and the source is temporarily blocked with a degradable material or barrier. The material disintegrates (e.g. under the influence of time or temperature) to optionally produce a product that removes the temporary coating in the area adjacent the barrier. The method is useful in one non-limiting context of recovering hydrocarbons where the flow conduit is the casing or liner of the well and the flow source is a subterranean reservoir where the temporary coating is a filter cake. | ||||||
| 90 | Permeable cement and sand control methods utilizing permeable cement in subterranean well bores | US10608319 | 2003-06-27 | US20040261993A1 | 2004-12-30 | Philip D. Nguyen |
| This invention relates to improved methods for completing wells in unconsolidated subterranean zones. More specifically, the present invention relates to cement compositions useful in subterranean applications, and more particularly, to permeable cement compositions and methods for forming consolidated permeable cement masses in well bores to prevent sand influx into the well bores with produced fluids. In one embodiment, the permeable cement compositions of the present invention comprise a hydraulic cement, water, and a degradable material capable of undergoing an irreversible degradation downhole. | ||||||
| 91 | Methods of reducing or preventing particulate flow-back in wells | US10241987 | 2002-09-11 | US20040206499A1 | 2004-10-21 | Philip D. Nguyen; Johnny A. Barton |
| Methods of reducing or preventing particulate flow-back in subterranean zones are provided. In accordance with the methods, a treating fluid having a mixture of reticulated foam fragments and particulate solids suspended therein is provided. The treating fluid is introduced into a subterranean zone and the mixture of the reticulated foam fragments and the particulate solids are deposited in the subterranean zone whereby the reticulated foam fragments retard or prevent the flow-back of the particulate solids and the transport of formation fines from the subterranean zone upon the flowing-back of fluid from the zone. | ||||||
| 92 | Permeable cement composition and method for preparing the same | US10322697 | 2002-12-17 | US20040112598A1 | 2004-06-17 | Philip D. Nguyen; Johnny A. Barton |
| The current invention provides an improved permeable cement composition for formation of downhole sand screens. The improved composition includes an effective amount of a surfactant. Addition of the surfactant to the permeable cement composition yields at least a pumpable slurry with a minimal amount of water or brine solution. | ||||||
| 93 | Methods of treating subterranean formations using solid particles and other larger solid materials | US10235353 | 2002-09-05 | US06742590B1 | 2004-06-01 | Philip D. Nguyen |
| Improved methods of treating subterranean formations using solid particles and other larger solid materials are provided. The methods are basically comprised of the steps of introducing a carrier fluid containing suspended solid particles which have been coated with a non-hardening tackifying agent into a subterranean formation, mixing a solid material of larger size with the tackifying compound coated solid particles whereby the solid particles stick to the larger solid material and the solid particles and larger solid material are uniformly suspended in the carrier fluid and depositing the larger solid material and the tackifying compound coated smaller solid particles in the subterranean formation. | ||||||
| 94 | Monitoring fluid flow through a filter | US09596831 | 2000-06-19 | US06450257B1 | 2002-09-17 | Neil I. Douglas |
| It is desirable to be able to monitor the condition of a filter in a fluid flow system, for example a sandscreen 3,4 in a fluid well. The invention provides monitoring apparatus including an optical fibre 6 having a pressure sensor 7. Pressure is exerted on the sensor, by fluid flowing through the sandscreen, via ports 10 and 11. The pressure sensor is responsive to a light signal, and to the exerted pressure, to produce a sensing light signal indicative of a characteristic of the fluid flow, such as pressure differential or fluid velocity. This, in turn, is indicative of the condition of the sandscreen or filter. | ||||||
| 95 | Methods for the removal of contaminants from subterranean fluids | US655305 | 1996-05-20 | US5728302A | 1998-03-17 | John A. Connor; Dennis A. Clifford; Philip T. King |
| A method is provided for reducing the concentration of radioactive materials or other trace contaminants in fluids withdrawn from subterranean reservoirs and also fluids in reservoirs. The method involves deposition of sorbent solids including, but not limited to, fine ion exchange resins, within the reservoir matrix surrounding a production well to act as an in-situ filter for dissolved radionuclides or other contaminants present in reservoir pore waters. For this purpose, the sorbent solid is either a) precipitated within the reservoir matrix by the reaction of ions or molecules of two or more carrier solutions or b) directly introduced into the reservoir as a solid component of a solid-liquid slurry using high-pressure injection techniques. Thereafter, fluids in the reservoir that contact the sorbent solid and fluids produced by the well contain significantly lower concentrations of contaminants which are by the sorbent solids by means of ion exchange, adsorption, chelation, chemisorption, or coprecipitation. | ||||||
| 96 | Method of preventing in-depth formation damage during injection of water into a formation | US857148 | 1992-03-25 | US5251697A | 1993-10-12 | Patrick J. Shuler |
| In-depth formation damage is prevented during water injection by adding to the water non-compressible solids of sufficient size and concentration to form an external filter cake within the injection well. Preferably, the non-compressible solids are either diatomite, perlite, saw dust, or calcium carbonate, and the concentration of non-compressible solids is from 0.001 to 5 wt%. When no longer needed, the external filter cake is removed from the injection well by using an acid wash or back-flowing the well. | ||||||
| 97 | Fines control in deviated wells | US884582 | 1992-05-18 | US5226495A | 1993-07-13 | Alfred R. Jennings, Jr. |
| This specification relates to the control of earth fines that are produced with hydrocarbons from a hydrocarbon-bearing formation into a well that penetrates the hydrocarbon-bearing formation. More particularly this specification relates the control of fines from a heavy-oil reservoir that is stimulated by thermal techniques and penetrated by and in communication with a well that is highly deviated from the vertical. | ||||||
| 98 | Method for the removal of radioactive waste during in-situ leaching of uranium | US717066 | 1976-08-24 | US4054320A | 1977-10-18 | Robert P. Learmont |
| In the in-situ leaching of valuable minerals such as uranium, a leaching solution is injected into the mineral-bearing formation, permitted to remain in contact with the formation to effect the solubilization of desirable mineral values therefrom, and then withdrawn either from the original injection well or a nearby production well. Presently, upon removal from the production well, the mineral bearing solution is filtered aboveground prior to chemical extraction of the valuable minerals. A serious problem has arisen in that highly radioactive radium ions have been found to accumulate, both in the circulating leach solution and in various aboveground equipment resulting in serious waste disposal problems. The instant method utilizes a sand pack containing barium salts, which ion exchange with the radium ions so that the latter are prevented from reaching the surface. | ||||||
| 99 | Apparatus and process for drawing water from a water-bearing strata | US540002 | 1975-01-10 | US4014387A | 1977-03-29 | Leonhard Fink |
| In order to draw water free of sand from a well bored into a water-bearing strata a cylindrical permeable body is located concentrically within the perforated wall of the well. The cylindrical body may in turn comprise concentric outer and inner slotted tubes with a permeable cylinder or a granulate therebetween. The lower end of the cylindrical body is closed and the upper end is connected to a pump. | ||||||
| 100 | Plug-displaced sandpacking process | US32470273 | 1973-01-18 | US3826310A | 1974-07-30 | KARNES G |
| A slurry of resin, sand and oil, for forming a sand or gravel pack in a well, is injected ahead of a mass of solid particles that form chemically removable plugs across the openings of well casing perforations into which the slurry is injected.
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