WO2016115612A2 - Tubo de alta eficiência térmica para condução de fluidos - Google Patents
Tubo de alta eficiência térmica para condução de fluidos Download PDFInfo
- Publication number
- WO2016115612A2 WO2016115612A2 PCT/BR2016/000010 BR2016000010W WO2016115612A2 WO 2016115612 A2 WO2016115612 A2 WO 2016115612A2 BR 2016000010 W BR2016000010 W BR 2016000010W WO 2016115612 A2 WO2016115612 A2 WO 2016115612A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tube
- pipe
- inner tube
- thermal
- fluid
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/147—Arrangements for the insulation of pipes or pipe systems the insulation being located inwardly of the outer surface of the pipe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/143—Pre-insulated pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
Definitions
- the present invention relates to a double-walled rigid pipe, with weld joints at the ends and annular space filled with high efficiency thermal insulator.
- the proposed invention refers to a HIGH-EFFICIENT FLUID DRIVING TUBE to be used for conducting various fluids with minimal loss of thermal energy.
- Steam injection is one of the most commonly used special methods for oil recovery.
- steam is injected into the reservoir in order to reduce viscosity, improving mobility and thus facilitating its extraction.
- Saturated steam from surface steam generators is injected into the oil reservoir through the steam injection tubing installed in the injector well.
- the oil-water-gas mixture is extracted from the reservoir and directed to the collecting station.
- each steam injection tube consists of two steel tubes with different jacketed diameters, ie a tube inserted into a jacket tube.
- the annular space formed between the pipes is filled with high efficiency thermal insulators, which must ensure that the thermal energy of the steam, promoted by pressure and temperature, is maintained along the entire length of the pipe until it reaches the reservoir. thus ensuring that thermal energy is used to decrease the viscosity of heavy oils.
- a high efficiency thermal insulator is applied, which has the function of ensuring that the thermal energy of the fluid remains with little heat dissipation along the entire pipeline line to the well. so that the viscosity decrease of heavy oils has the expected efficiency.
- the steam injector tube is a high cost item that involves noble materials and a delicate set of processes during its manufacture.
- the efficiency of the steam injector tube is directly linked to the thermal insulation used and the mechanical resistance of the assembly. The more severe the operating conditions, the faster the pipe walls and / or cracks in the weldings of the winding wear, compromising the thermal insulation of the pipe and the efficiency of the steam injection system. Connections are also critical points, as thread wear loses column tightness, resulting in steam leakage and low process efficiency.
- patent BRPI8601 182 "INSULATED TUBULAR CONDUCT, FOR CONCENTRIC WALL FORMATION" UNDERGROUND ", dated March 17, 1986, which describes an insulated conduit with concentric walls having an annular space between the walls within which insulating materials are deposited and sealed therein.
- a disadvantage of this patent is the need to include the forging process of the inner tube, with the aim of increasing its diameter at the ends, only then to perform joint welding between the tubes.
- the present invention overcomes this difficulty as a new technology has been developed, described in the present invention of HIGH-EFFICIENT FLUID DRIVING TUBE, which refers to an innovative, automated, low-cost concentric pipe welding technology. number of weld beads, both in the inner tube filling phase and in the inner and outer tube joining phase.
- Another disadvantage is the use of two types of insulators, and the model used at the ends uses partial vacuum.
- the present invention uses only one type of thermal insulator without the need for vacuum, as there is fracture in the pipe the vacuum is lost and consequently the insulation efficiency.
- thermally insulated, double-walled pipe that uses the pre-vacuum for the application of thermal insulation, designed for steam injection purposes, is disclosed in patent application BRPI0702437, "THERMAL INSULATED STEAM INJECTION (MAGL) PIPE”. OIL WELLS ", deposited on July 20, 2007.
- This technology has the disadvantage of applying the thermal insulator and the mechanism to keep the inner and outer tube concentric, as it is necessary to install up to six centering rings in the inner tube before insert it into the outer tube and then drill a hole at each end of the outer tube so that vacuum pumps are installed for suction filling the annular space with the thermal insulator.
- the invention of the HIGH THERMAL EFFICIENCY FLUID PIPE described herein aims to overcome the problems encountered in the thermal efficiency of the steam injector tubes described in the state of the art and to overcome the difficulties encountered in the market, such as: low insulation efficiency; shorter tube life than desired; and high cost of the final product.
- the present invention relates to a thermally insulated fluid conductive tube through the development of a technology capable of increasing the thermal efficiency by the use of high efficiency shaped thermal insulation, which has uniform density and thickness for application in annular spaces between concentric tubes. , as well as reducing the risk of failure in the concentric pipe joining weld by the use of a material with high strength and high ductility and also due to the use of an angular weld geometry, which promotes proper distribution of mechanical stresses due to of the difference of dilation between inner and outer tube.
- Figure 1 shows the parts that make up the HIGH-EFFICIENT FLUID DRIVING TUBE.
- Figure 2 shows the detail of the geometry of the joint weld between the tubes that make up the HIGH THERMAL EFFICIENCY FLUID PIPE.
- Figure 3 shows the manufacturing process of the HIGH THERMAL EFFICIENCY TUBE FOR FLUID DRIVING.
- the invention described as HIGH THERMAL EFFICIENCY PIPE FOR FLUID DRIVING is not limited to this model, as shown in Figure 1, consisting of: An outer tube (1) and an inner tube (2) of thermal insulation ( 3) composed of high-efficiency insulation blanket, even at high temperatures, which fills the annular space between the inner and outer tubes avoiding heat transfer between the tubes and ensuring their concentric centering; reinforced aluminized tape (4) and capable of maintaining its efficiency even at high temperatures, allows to fix the compressed insulator over the inner tube avoiding surface irregularities facilitating insertion and concentricity with the outer tube; union weld (5) that allows the union between the inner tube and the outer tube, sealing the thermal insulator inside the annular space; external fitting / thread (6) used to connect one pipe to the other by threaded sleeves thus resulting in a pipe column.
- this new technology acts in two ways. One is directly on the metallurgical characteristics of the joint, in order to minimize the incidence of brittle phases, in addition to equalizing the stresses arising from welding, and the other is through a geometric optimization of the weld between 30 and 60 ° (7) described in Figure 2, which enables stress levels during conduction of heated fluids to be minimized and may even eliminate the most complex stress fields.
- the object of the welding process is the production of a jacketed tube composed of one tube inside the other, filled with thermal insulation, with welds at the ends, joining the outer surface of the inner tube to the inner surface of the outer tube.
- the pipes shall maintain the concentricity and mechanical characteristics appropriate to the field requirements.
- a consumable of metallurgical characteristic related to the pipe material is applied, in order to guarantee, in the weld, a higher mechanical resistance, because it is positioned at the ends of the welds. tube "s, being this region subject to greater mechanical stress than the other regions of the tube. Therefore, due to the metallurgical characteristics of the deposit, it should not be affected by failures related to mechanical strength or brittleness.
- the pipe welding process is carried out through an automated system ensuring the reproducibility of welded joints, in which the control of the metal transfer is established in order to minimize the heat input and, consequently, greater control of the thermally affected zone (ZTA). .
- Another advantage of the invention is in the process of manufacturing the modified buttress-type thread, through laboratory tests it has been proven that the use of a 5-point penta insert with 2 edges per tip and side screw and socket fixation generates savings. cost in the manufacturing process when compared to single-edge inserts. For in this way the penta tablet can have a shelf life five times longer than the single-edge model before the need for replacement.
- the insert holder is made of special steel and has specific geometry to ensure greater insert attachment rigidity, higher precision and better thread fillet finish.
- thermal insulators Some samples of high efficiency thermal insulators have been laboratory tested to ensure the highest thermal efficiency to the fluid conductive tube of the present invention.
- the test consisted of supplying heat from inside the three tubes, each with different thermal insulators applied, to check the temperature of the outer face of the outer tube using a temperature measurement device known as a pyrometer.
- the thermal efficiency of the following samples was verified: sample 1 - airgel blanket; Sample 2 - Microporous insulation; and Sample 3 - Ceramic fiber.
- Sample 1 showed a thermal efficiency 30.4% higher than sample 2 and 24.7% higher than sample 3. It was also compared the thermal efficiency of sample 1 compared to a tube used in the domestic market also composed of nanotechnology for thermal insulation. , with sample 1 being 14% more efficient. Therefore, we have chosen to use the thermal insulator of sample 1 in the present invention because of its demonstrated high thermal efficiency.
- the thermal insulator (3) applied in the annular space between the inner and outer tubes is composed of a high-efficiency insulating blanket known as thermal insulator, such as silica and fiberglass airgel covered by aluminized tape, avoiding heat transfer between the tubes and ensuring their concentric centering.
- thermal insulator such as silica and fiberglass airgel covered by aluminized tape
- the manufacturing process of the HIGH HEAT EFFICIENCY FLUID PIPE consists of the following steps: Cutting the original threads of the inner tube (8); Fill welding at both ends of the inner tube (9); Beveling in the filler weld at both ends to adjust the predetermined degree (10); Cutting the original threads of the outer tube having as a parameter the final length of the inner tube (11); Definition of dimensions and section of thermal insulation according to inner tube specifications
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/545,528 US20180066789A1 (en) | 2015-01-21 | 2016-01-20 | High Thermal Efficiency Tube for Conveying Fluids |
CA3012071A CA3012071A1 (en) | 2015-01-21 | 2016-01-20 | High-efficiency thermal tube for conducting fluids |
CONC2018/0002569A CO2018002569A2 (es) | 2015-01-21 | 2018-03-12 | Tubo de alta eficiencia térmica para conducir fluidos y un proceso de producción del mismo |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRBR1020150013361 | 2015-01-21 | ||
BR102015001336A BR102015001336A2 (pt) | 2015-01-21 | 2015-01-21 | tubo de alta eficiência térmica para condução de fluidos |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2016115612A2 true WO2016115612A2 (pt) | 2016-07-28 |
WO2016115612A3 WO2016115612A3 (pt) | 2016-10-20 |
Family
ID=56417886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2016/000010 WO2016115612A2 (pt) | 2015-01-21 | 2016-01-20 | Tubo de alta eficiência térmica para condução de fluidos |
Country Status (5)
Country | Link |
---|---|
US (1) | US20180066789A1 (pt) |
BR (1) | BR102015001336A2 (pt) |
CA (1) | CA3012071A1 (pt) |
CO (1) | CO2018002569A2 (pt) |
WO (1) | WO2016115612A2 (pt) |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US987098A (en) * | 1910-08-09 | 1911-03-14 | James Scott | Expansion-joint. |
US2451146A (en) * | 1944-06-05 | 1948-10-12 | Kellogg M W Co | Internally insulation lined vessel |
US2419278A (en) * | 1945-06-30 | 1947-04-22 | Phillips Petroleum Co | Insulated pipe |
US3511282A (en) * | 1966-02-07 | 1970-05-12 | Continental Oil Co | Prestressed conduit for heated fluids |
US3693665A (en) * | 1970-01-28 | 1972-09-26 | Shell Oil Co | Pipeline for the transport of cold liquids |
US3930568A (en) * | 1973-05-29 | 1976-01-06 | Bti Company | Bar stock silencer tube |
US3885595A (en) * | 1974-01-28 | 1975-05-27 | Kaiser Aerospace & Electronics | Conduit for cryogenic fluid transportation |
US4363504A (en) * | 1980-01-04 | 1982-12-14 | Curtiss-Wright Corporation | High temperature lined conduits, elbows and tees |
US4340245A (en) * | 1980-07-24 | 1982-07-20 | Conoco Inc. | Insulated prestressed conduit string for heated fluids |
US4510974A (en) * | 1980-08-21 | 1985-04-16 | Hitachi Cable Ltd. | Fluid conveying hose |
US4415184A (en) * | 1981-04-27 | 1983-11-15 | General Electric Company | High temperature insulated casing |
US4566495A (en) * | 1981-05-18 | 1986-01-28 | Baker Oil Tools, Inc. | Concentric walled conduit for a tubular conduit string |
US4444420A (en) * | 1981-06-10 | 1984-04-24 | Baker International Corporation | Insulating tubular conduit apparatus |
US4624485A (en) * | 1981-06-10 | 1986-11-25 | Baker Oil Tools, Inc. | Insulating tubular conduit apparatus |
US4538834A (en) * | 1982-09-09 | 1985-09-03 | General Electric Co. | Tubular assembly for transferring fluids |
DE3909066A1 (de) * | 1989-03-20 | 1990-09-27 | Gruenzweig & Hartmann Montage | Waermedaemmung fuer rohre oder behaelter |
NO307625B1 (no) * | 1994-08-03 | 2000-05-02 | Norsk Hydro As | Rorskjot for sammenfoyning av to ror med langsgaende ledninger i rorveggen |
GB2322423B (en) * | 1997-02-17 | 1998-12-30 | T J Corbishley | Improvements in connecting tubular members |
AR026369A1 (es) * | 2000-11-06 | 2003-02-05 | Siderca Sa Ind & Com | Proceso para fabricar una unidad tubular fuera del area de trabajo para acoplar tubos de doble pared y unidad tubular obtenida |
BR0203098B1 (pt) * | 2002-07-30 | 2011-11-16 | dutos de parede composta para águas ultra-profundas. | |
US20060272727A1 (en) * | 2005-06-06 | 2006-12-07 | Dinon John L | Insulated pipe and method for preparing same |
BRPI0701431A2 (pt) * | 2007-04-11 | 2008-11-25 | Columbia Tecnologia Em Petrole | revestimento para isolamento tÉrmico e proteÇço mecÂnica de tubulaÇÕes e equipamentos, composto para isolamento tÉrmico passivo e seu respectivo processo de fabricaÇço |
BRPI0702437A2 (pt) * | 2007-07-20 | 2009-03-10 | Columbia Tecnologia Em Petrole | tubo termicamente isolado (magl) para injeÇço de vapor em poÇos de petràleo |
CN102071879B (zh) * | 2011-01-07 | 2013-07-10 | 中国石油集团渤海石油装备制造有限公司 | 一种预应力隔热油管 |
EP3140492B1 (fr) * | 2014-05-06 | 2019-01-30 | Total S.A. | Ensemble de jonction pour former une conduite |
-
2015
- 2015-01-21 BR BR102015001336A patent/BR102015001336A2/pt not_active Application Discontinuation
-
2016
- 2016-01-20 US US15/545,528 patent/US20180066789A1/en not_active Abandoned
- 2016-01-20 CA CA3012071A patent/CA3012071A1/en not_active Abandoned
- 2016-01-20 WO PCT/BR2016/000010 patent/WO2016115612A2/pt active Application Filing
-
2018
- 2018-03-12 CO CONC2018/0002569A patent/CO2018002569A2/es unknown
Also Published As
Publication number | Publication date |
---|---|
CA3012071A1 (en) | 2016-07-28 |
WO2016115612A3 (pt) | 2016-10-20 |
US20180066789A1 (en) | 2018-03-08 |
CO2018002569A2 (es) | 2018-05-21 |
BR102015001336A2 (pt) | 2016-08-02 |
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