| 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 | Method and apparatus for controlling chemical injection of a surface treatment system | EP03014871.2 | 1998-05-01 | EP1355169A3 | 2004-09-29 | Johnson, Michael H.; Harrell, John W.; Lembecke, Jeffrey J.; Hickey, Kurt A.; Tubel, Paolo S.; Williams, Glynn, Roman House; Leggett, Nigel, Roman House |
An apparatus for controlling chemical injection of a surface treatment system for an oilfield well, said apparatus comprising: a chemical injecting device injecting one or more chemicals into the treatment system for the treatment of fluids produced from an oilfield well; at least one chemical sensor associated with the treatment system for sensing at least one parameter of the injected chemical or for sensing at least one chemical property of the fluids produced from the oilfield well; and a control and monitoring system for controlling the chemical injection device in response, at least in part, to information from said downhole chemical sensor. |
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| 182 | A method for avoiding injection induced unintentional fracture growth | EP03014870.4 | 1998-05-01 | EP1355168A3 | 2004-05-26 | Johnson, Michael H.; Harrell, John W.; Lembecke, Jeffrey J.; Hickey, Kurt A.; Tubel, Paolo S.; Williams, Glynn, Roman House; Leggett, Nigel, Roman House |
A method for avoiding injection induced unintentional fracture growth, said method comprising providing at least one acoustic sensor (40) in an injection well (12); monitoring said at least one sensor and varying pressure of a fluid being injected to avoid a predetermined threshold level of acoustic activity received by said at least one sensor. |
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| 183 | Well treatment apparatus and method | EP03256142.5 | 2003-09-29 | EP1416118A1 | 2004-05-06 | Allison, David B |
Well treatment chemicals (120) are delivered to a downhole region (122) of a wellbore by positioning a pipe string (118) in the wellbore, the pipe string including a well treatment device (110) containing at least one well treatment chemical, and releasing the chemical into the region. |
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| 184 | An injection evaluation system | EP03014868.8 | 1998-05-01 | EP1355166A3 | 2004-01-21 | Johnson, Michael H.; Harrell, John W.; Lembecke, Jeffrey J.; Hickey, Kurt A.; Tubel, Paolo S.; Williams, Glynn; Leggett, Nigel |
A downhole injection evaluation system comprises at least one downhole sensor (40,60) permanently disposed in an injection well (12) for sensing at least one parameter associated with injecting a fluid into a formation. |
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| 185 | Method and apparatus for controlling chemical injection of a surface treatment system | EP03014871.2 | 1998-05-01 | EP1355169A2 | 2003-10-22 | The designation of the inventor has not yet been filed |
An apparatus for controlling chemical injection of a surface treatment system for an oilfield well, said apparatus comprising: a chemical injecting device injecting one or more chemicals into the treatment system for the treatment of fluids produced from an oilfield well; at least one chemical sensor associated with the treatment system for sensing at least one parameter of the injected chemical or for sensing at least one chemical property of the fluids produced from the oilfield well; and a control and monitoring system for controlling the chemical injection device in response, at least in part, to information from said downhole chemical sensor. |
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| 186 | CONTROLLED DOWNHOLE CHEMICAL INJECTION | EP01916383.1 | 2001-03-02 | EP1259701A1 | 2002-11-27 | STEGEMEIER, George, Leo; VINEGAR, Harold, J.; BURNETT, Robert, Rex; SAVAGE, William, Mountjoy; CARL, Frederick, Gordon, Jr.; HIRSCH, John, Michele |
| A petroleum well (20) comprises a well casing (30), a production tubing (40), a source of time-varying current (68), a downhole chemical injection device (60), and a downhole induction choke (90). The casing (30) extends within a wellbore of the well (20). The tubing (40) extends within the casing (30). The current source (68) is located at the surface. The current source (68) is electrically connected to, and adapted to output a time-varying current into, the tubing (40) and/or the casing (30), which act as electrical conductors for providing downhole power and/or communications. The injection device (60) comprises a communications and control module (80), a chemical container (82), and an electrically controllable chemical injector (84). The communications and control module (80) is electrically connected to the tubing (40) and/or the casing (30). The chemical injector (84) is electrically connected to the communications and control module (80), and is in fluid communication with the chemical container (82). The downhole induction choke (90) is located about a portion of the tubing (40) and/or the casing (30). The induction choke (90) is adapted to route part of the electrical current through the communications and control module (80) by creating a voltage potential between one side of the induction choke (90) and another side of the induction choke (90). The communications and control module (80) is electrically connected across the voltage potential. Also, a method is provided for controllably injecting a chemical into the well (20) downhole, which may be used to: improve lift efficiency with a foaming agent, prevent deposition of solids with a paraffin solvent, improve a flow characteristic of the flow stream with a surfactant, prevent corrosion with a corrosion inhibitor, and/or prevent scaling with scale preventers. | ||||||
| 187 | CONTROL AND MONITORING SYSTEM FOR CHEMICAL TREATMENT OF AN OILFIELD WELL | EP98922480.3 | 1998-05-21 | EP0988440B1 | 2002-10-16 | JOHNSON, Michael, H.; CLEMMIT, Alan |
| A control and monitoring system for chemical system for chemical treatment of an oilfield well is presented. In accordance with the present invention, a chemical injection monitoring and control system includes the placement of one or more sensors downhole in a producing zone for measuring the chemical properties of the produced fluid as well as for measuring other downhold parameters of interest. These sensors are preferably fiber optic based and provide a high temperature, reliable, and relatively inexpensive indicator of the desired chemical parameter. Surface and/or downhold controllers receive input from the several downhole sensors; and in response thereto, control the injection of chemicals into a wellbore and/or surface treatment system. By the sensors communicating with both the surface and/or downhole controllers, the effectiveness of the downhole or surface treatment system is monitored in real-time and based on the sensed information, the controllers will initiate some change in the manner, amount, or type of the chemical being injected. | ||||||
| 188 | Apparatus and method for removing metal or mineral contaminants, especially for oil drilling equipments | EP98302534.7 | 1998-04-01 | EP0874067A3 | 2001-11-28 | Keatch, Richard |
A device and method for removing metal or mineral deposits from surfaces (eg. surfaces of oil drilling equipment) by creating an electrochemical cell of which the contaminated surface is a part. |
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| 189 | Method for preventing metal deposition and an oil or gas well with electrically contacting means | EP98302535.4 | 1998-04-01 | EP0869201A3 | 2001-11-28 | Keatch, Richard |
A method for inhibiting or preventing the deposition of metals onto metallic surfaces, particularly the metal surfaces in an oil or gas well. |
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| 190 | OIL WELL TREATMENT | EP95920998.2 | 1995-05-30 | EP0811110B1 | 2000-09-13 | BOURNE, Hugh, Malcolm; READ, Peter, Arne |
| Corrosion, scale-formation, or other deleterious processes are inhibited in an oil well by providing within the oil well (10) elements comprising an insoluble porous inorganic material in which is absorbed a well treatment chemical. The material may be in the form of particles or beads, for example porous ceramic spheres impregnated with an inhibitor material. Such particles may be injected as proppant particles into the formation through which the well extends, during a fracturing treatment. Alternatively such particles may be packed as a filter bed (26) in a filter (20) comprising two spaced tubular screens (24) between which the filter bed (26) is located. The inhibitor material gradually dissolves in the well fluids during operation, and may for example inhibit corrosion and/or scale-formation. | ||||||
| 191 | METHOD FOR INHIBITING BIOGENIC SULFIDE GENERATION | EP98937267.7 | 1998-07-29 | EP1015388A1 | 2000-07-05 | BURGER, Edward, Daniel |
| A non-biocidal method for inhibiting biogenic sulfide generation in a system having an anaerobic biofilm containing active sulfate-reducing bacteria comprising contacting the biofilm with an aqueous solution of anthrahydroquinone compound. | ||||||
| 192 | Verfahren und Zusammensetzung zur Inhibierung von Korrosion | EP98118262.9 | 1998-09-26 | EP0906969A1 | 1999-04-07 | Kissel, Charles L. CNC Development, Inc. |
Die Erfindung lehrt auf C, H, O und N basierende Korrosionsinhibitoren und solche Inhibitoren umfassende Zusammensetzungen, welche bei Temperaturen im Bereich von 150 bis 450 °C wirksam sind. Die Inhibitoren sind Aminoamide der allgemeinen Formel R1-CO-NR2-Z-NR3R4, wobei Z ein divalenter aliphatischer oder alicyclischer Rest und R1 ein monovalenter Rest mit einem oleophilen Anteil ist. Bevorzugte Stoffe sind Fettsäureamide von Isophorondiamin, 2(3),5(6)-Diaminonorbornylen, 1,8-Diaminomethan und 2,2,4-Trimethyl-1,6-diaminohexan. Die Inhibitoren eignen sich bei Tiefbohrungen nach Gas und Öl, Raffinerievorgängen und geothermischen Tiefbohrungen. |
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| 193 | Method of controlling fine particulate flowback in subterranean wells | EP97307807.4 | 1997-10-02 | EP0879935A3 | 1999-02-10 | Weaver, Jim D.; Nguyen, Philip D.; Stanford, James R.; Bowles, Bobby K.; Wilson, Steven F.; Parker, Mark A.; Dewprashad, Brahmadeo |
A wellbore penetrating a subterranean formation is treated with a fluid whereby fine particulate flowback is reduced or prevented. The method includes the steps of providing a fluid suspension including a mixture of a particulate coated with a tackifying compound, pumping the suspension into a subterranean formation and depositing the mixture within the formation whereby the tackifying compound retards movement of at least a portion of any fine particulate within the formation upon flow of fluids from the subterranean formation through the wellbore. Alternatively, the tackifying compound may be introduced into a subterranean formation in a diluent containing solution to deposit upon previously introduced particulates to retard movement of such particulates and any fines subject to flow with production of fluids from the subterranean formation. |
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| 194 | Apparatus and method for removing metal or mineral contaminants, especially for oil drilling equipments | EP98302534.7 | 1998-04-01 | EP0874067A2 | 1998-10-28 | Keatch, Richard |
A device and method for removing metal or mineral deposits from surfaces (eg. surfaces of oil drilling equipment) by creating an electrochemical cell of which the contaminated surface is a part. |
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| 195 | Method for preventing metal deposition and an oil or gas well with electrically contacting means | EP98302535.4 | 1998-04-01 | EP0869201A2 | 1998-10-07 | Keatch, Richard |
A method for inhibiting or preventing the deposition of metals onto metallic surfaces, particularly the metal surfaces in an oil or gas well. |
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| 196 | HYDROCARBON PRODUCTION USING MULTILATERAL WELL BORES | EP96912452.0 | 1996-03-25 | EP0815349A1 | 1998-01-07 | DONOVAN, Joseph, F.; TURICK, Daniel, J.; JOHNSON, Michael, H.; WATKINS, Larry, A. |
| A system for producing a field having several reservoirs (10, 12, 14) and an aquifer (16) is described. Branch well bores (30) are drilled from the main well bore (2) towards the different reservoirs. One of the branches may contain a downhole separator for separating oil and water, the water being re-injected either into aquifer (16) or into the aquifer associated with the different reservoirs; another of the branches may contain a downhole separator for separating oil and gas, the gas being re-injected into the gas cap associated with the different reservoirs; another of the branches may contain a downhole storage device for storing chemicals for treatment against corrosion, scale, paraffin wax, hydrogen sulfide etc.; another of the branches may contain a unit for cracking and catalyzing the production fluids. Downhole flow control devices such as chokes may be located in the branch well bores, the production of the different reservoirs being commingled in the main well bore. | ||||||
| 197 | DEVICE FOR THE ASSEMBLY OR DISASSEMBLY OF PROBES IN PROCESS PIPES, TANKS, ETC. | EP92900033.9 | 1991-12-03 | EP0513296B1 | 1996-05-01 | WANG, Kjetil |
| Device for the assembly, resp. disassembly of probes (31) into process pipes, tanks (34), etc., comprising a nipple (25) mounted to the wall (36) of the pipe or tank (34), a ball valve (24) mounted to the nipple (25) and an hydraulically activated cylinder (2) which, for example, may be operated by using a pump. Its cylinder is connected to the ball valve (24), as the cylinder (2) is provided with a piston device (3) attached to the pump (23) through a first attachment (19) for the inflow and outflow of hydraulic fluids for pressure balancing within the cylinder (2) in order to bring the probe (31) into the nipple (25), through the ball valve (24) to the cylinder (2). The piston rod (5) is constructed so that it may be fastened to an attachment (32) on the probe (31). A second attachment (21) for outflow and inflow of hydraulic fluid being mounted to the cylinder wall (15) on the opposite side of the piston device (3) in the first attachment (19), also in order to bring the probe (31) out of the nipple (25), through the ball valve (24) and to the cylinder (2). | ||||||
| 198 | Method for treating oil wells | EP94308132.3 | 1994-11-04 | EP0656459A1 | 1995-06-07 | Read, Peter Arne |
Corrosion, scale-formation, or other deleterious processes are inhibited in an oil well by installing within the oil well (10) fluid-permeable elements, such as tubular filters (20), which comprise a suppressing material. Each filter (20) comprises two tubular filter screens (24) between which is a bed (26) of particles comprising suitable inhibitor material. The particles might for example be porous ceramic spheres impregnated with the inhibitor material. The inhibitor material gradually dissolves in the well fluids during operation, and may for example inhibit corrosion and/or scale formation. |
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| 199 | Method and appararus for producing viscous crudes | EP88202921.8 | 1988-12-16 | EP0322958B1 | 1993-11-03 | Thomas, David William; Corby, Robert Scott |
| 200 | CORROSION INHIBITING COMPOSITION FOR ZINC HALIDE-BASED CLEAR, HIGH DENSITY FLUIDS | EP87906345.1 | 1987-09-08 | EP0292508B1 | 1991-06-26 | SHIN, Charles, C. |
| Thio group corrosion inhibitors and aldose group antioxidants when combined provide a synergistic corrosion inhibition system for clear, high density oil and gas completion and workover fluids. | ||||||
