Anti-freezing device applied to overflow reinjection device
By using anti-freeze devices with components such as on-board heating circulation system in the overflow injection device, the problem that the overflow injection device cannot work normally in the low-temperature environment in winter is solved, and the normal construction and construction safety of the device is achieved in the low-temperature environment.
Patent Information
- Application Number
- CN202311558070.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-22
- Publication Date
- 2025-05-23
AI Technical Summary
The existing overflow and return injection device cannot work properly in low-temperature environments in winter, and there is a risk of freezing and bursting of pipes, and bursting is prone to occur at the interconnection between pipes and fittings in low-temperature environments.
The antifreeze device including the on-board heating circulation system, the automatic temperature control system, the thermal energy storage system and the heating heating system is adopted. The on-board boiler circulation heating system provides a heat source, heat the overflow return injection device pipeline and the return injection box, and the waterproof flame-retardant insulation cotton is wrapped outside the overflow pipe and the return injection pipe.
The overflow return injection device has effectively overcome the problem of bursting at the interconnection of overflow pipes, back injection pipes, pipes and fittings under low temperature environment in winter, and the normal construction of overflow return injection device in low temperature environment is achieved to ensure the safe, stable and efficient operation of the construction.
Smart Images
Figure CN120027515A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of winter antifreeze for oilfield well logging, and in particular to an antifreeze device applied to an overflow re-injection device. Background Art
[0002] With the continuous advancement of oilfield development, it has become normal for logging teams to work in severe winter cold. The overflow re-injection device equipped with the logging team's winch is only suitable for the situation where the external environment is above zero degrees. It cannot work normally at low temperatures below zero. The water tank, overflow pipe, re-injection pipe and corresponding quick connectors are all at risk of freezing and bursting. Therefore, the existing overflow re-injection device cannot meet the actual on-site needs of the existing oilfield's low temperature environment in winter. There are two difficulties in the construction of the existing overflow re-injection device in the low temperature environment in winter: First, in the low temperature environment in winter, since the density of ice is less than that of water, the same mass of water will increase in volume after freezing, which may burst the pipe wall, and the pipes and fittings will shrink under cold conditions, which will increase the internal pressure of the pipes and lead to damage to the pressure holding and pumping equipment; second, in the low temperature environment in winter, the pressure gauge, quick connector and other pipe fittings have reduced diameter structure parts, and the strength of the interconnections between pipes and fittings is low, which is prone to pressure-resistant weak points, thus becoming stress concentration release points when freezing, and eventually bursting. Therefore, in view of the above shortcomings, an antifreeze device applied to an overflow re-injection device is proposed. Summary of the invention
[0003] 1. Technical issues to be resolved The present invention provides an antifreeze device applied to an overflow re-injection device to overcome the defects in the prior art such as the lack of a suitable antifreeze device for the overflow re-injection device in a low temperature environment in winter, the inability to use the overflow re-injection device normally, the inability to fully protect the risk areas of freezing and blockage of the overflow re-injection device, and the inability to perform normal construction.
[0004] (II) Technical solution In order to solve the above problems, the present invention provides an antifreeze device applied to an overflow re-injection device, comprising: An on-board heating circulation system, an automatic temperature control system, a thermal energy storage system and a tracing heating system, wherein the on-board heating circulation system is connected to the thermal energy storage system, the on-board heating circulation system is connected to the automatic temperature control system, the on-board heating circulation system is connected to the overflow reinjection device, the thermal energy storage system is connected to the tracing heating system, the tracing heating system is connected to the overflow reinjection device, the automatic temperature control system is connected to the overflow reinjection device, the on-board heating circulation system can heat the overflow reinjection device, the automatic temperature control system controls the heating temperature of the on-board heating circulation system, the automatic temperature control system monitors the real-time temperature of the overflow reinjection device, and the tracing heating system heats the overflow reinjection device.
[0005] Preferably, the vehicle-mounted heating circulation system comprises a vehicle battery, an automatic control switch and a vehicle-mounted heating boiler circulation pump, the vehicle battery is connected to the automatic control switch, and the lower end of the automatic control switch is connected to the vehicle-mounted heating boiler circulation pump.
[0006] Preferably, the automatic control switch controls the opening and closing of the vehicle-mounted heating boiler circulation pump.
[0007] Preferably, the automatic temperature control system comprises an intelligent control panel and a temperature control sensor, the lower end of the intelligent control panel is connected to the temperature control sensor, and the intelligent control panel is connected to an automatic control switch.
[0008] Preferably, the intelligent control panel is provided with a temperature preset value, and the temperature preset value includes a temperature upper limit value and a temperature lower limit value. The temperature control sensor controls the heating temperature of the vehicle-mounted heating circulation system. The intelligent control panel monitors the real-time temperature of the overflow re-injection device, and controls the heating switch and heating time of the vehicle-mounted heating circulation system through the intelligent control panel.
[0009] Preferably, the overflow re-injection device includes a re-injection box, an overflow pipe and a re-injection pipe. The two sides of the re-injection box are respectively connected to the re-injection pipe and the overflow pipe. The intelligent control panel monitors the real-time temperature of the re-injection box. When the temperature of the re-injection box reaches the temperature upper limit value of the intelligent control panel, the vehicle-mounted heating circulation system stops heating.
[0010] Preferably, the thermal energy storage system comprises an antifreeze buffer tank, a hot water inlet and a hot water outlet, the upper end of one side of the antifreeze buffer tank is connected to the hot water outlet, and the lower end of the other side of the antifreeze buffer tank is connected to the hot water inlet.
[0011] Preferably, the antifreeze heated by the vehicle-mounted heating boiler circulation pump is input into the antifreeze buffer tank through the hot water inlet, the hot antifreeze is stored inside the antifreeze buffer tank, the hot antifreeze stored inside the antifreeze buffer tank is output through the hot water outlet, and the hot antifreeze in the antifreeze buffer tank is input into the heating system.
[0012] Preferably, the heat tracing heating system comprises a re-injection box heat sink and a re-injection pipe heat sink, the re-injection box heat sink is connected to the re-injection pipe heat sink, the re-injection pipe heat sink heats the re-injection pipe, and the re-injection box heat sink heats the re-injection box.
[0013] (III) Beneficial effects The antifreeze device applied to the overflow and reinjection device provided by the present invention provides a heat source through the vehicle-mounted boiler circulation heating system to heat the overflow and reinjection device pipeline and the reinjection box, and wraps the overflow pipe and the reinjection pipe with waterproof and flame-retardant thermal insulation cotton to prevent heat loss, effectively overcoming the overflow and reinjection device in the low temperature environment in winter. The overflow pipe, reinjection pipe, pipes and pipe fittings are interconnected and burst, and the normal construction of the overflow and reinjection device in the low temperature environment is realized, ensuring the safe, stable and efficient operation of the construction. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a system schematic diagram of an antifreeze device applied to an overflow re-injection device according to an embodiment of the present invention; Figure 2 A schematic structural diagram of a vehicle-mounted heating circulation system according to an embodiment of the present invention; Figure 3 It is a structural schematic diagram of an automatic temperature control system according to an embodiment of the present invention; Figure 4 It is a structural schematic diagram of a thermal energy storage system according to an embodiment of the present invention; Figure 5 This is a schematic structural diagram of a reinjection pipe heating belt according to an embodiment of the present invention; Figure 6 It is a schematic structural diagram of the heat sink of the re-injection box according to an embodiment of the present invention.
[0015] Legend: 1—on-board heating circulation system; 2—automatic temperature control system; 3—thermal energy storage system; 4—heating system; 5—car battery; 6—automatic control switch; 7—on-board heating boiler circulation pump; 8—antifreeze buffer tank; 9—reinjection tank heat sink; 10—intelligent control panel; 11—temperature control sensor; 12—reinjection pipe heating belt; 13—hot water inlet; 14—hot water outlet. Implementation
[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0017] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by “upper”, “lower”, “inside”, “outside”, “top”, “bottom”, etc. are all based on the orientations or positional relationships shown in the accompanying drawings. The purpose is only to facilitate the description of the present invention and simplify the description. It does not indicate or imply that the referred parts must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0018] Figure 1 Schematic diagram of a system of an antifreeze device applied to an overflow re-injection device according to an embodiment of the present invention. Figure 1 As shown, the present invention provides an antifreeze device applied to an overflow re-injection device, specifically comprising: An on-board heating circulation system 1, an automatic temperature control system 2, a thermal energy storage system 3 and a tracing heating system 4, wherein the on-board heating circulation system 1 is connected to the thermal energy storage system 3, the on-board heating circulation system 1 is connected to the automatic temperature control system 2, the on-board heating circulation system 1 is connected to an overflow reinjection device, the thermal energy storage system 3 is connected to the tracing heating system 4, the tracing heating system 4 is connected to the overflow reinjection device, the automatic temperature control system 2 is connected to the overflow reinjection device, the on-board heating circulation system 1 can heat the overflow reinjection device, the automatic temperature control system 2 controls the heating temperature of the on-board heating circulation system 1, the automatic temperature control system 2 monitors the real-time temperature of the overflow reinjection device, and the tracing heating system 4 heats the overflow reinjection device.
[0019] In practical applications, Figure 2 FIG. 1 is a schematic diagram of the structure of the vehicle-mounted heating circulation system according to an embodiment of the present invention. Figure 2 As shown, the vehicle heating circulation system 1 includes a vehicle battery 5, an automatic control switch 6 and a vehicle heating boiler circulation pump 7. The vehicle battery 5 is connected to the automatic control switch 6, and the lower end of the automatic control switch 6 is connected to the vehicle heating boiler circulation pump 7. The automatic control switch 6 controls the opening and closing of the vehicle heating boiler circulation pump 7, and the vehicle heating circulation system 1 heats the antifreeze.
[0020] In this antifreeze device, Figure 3 FIG. 1 is a schematic diagram of the structure of the automatic temperature control system according to an embodiment of the present invention. Figure 3 As shown, the automatic temperature control system 2 includes an intelligent control panel 11 and a temperature control sensor 10. The lower end of the intelligent control panel 11 is connected to the temperature control sensor 10. The intelligent control panel 11 is connected to the automatic control switch 6. The intelligent control panel 11 is provided with a temperature preset value. The temperature preset value includes a temperature upper limit value and a temperature lower limit value. The temperature control sensor 10 controls the heating temperature of the vehicle-mounted heating circulation system 1. The intelligent control panel 11 monitors the real-time temperature of the overflow re-injection device. The heating switch and heating time of the vehicle-mounted heating circulation system 1 are controlled by the intelligent control panel 11.
[0021] In actual applications, the overflow re-injection device includes a re-injection box, an overflow pipe and a re-injection pipe. The two sides of the re-injection box are respectively connected to the re-injection pipe and the overflow pipe. The intelligent control panel 11 monitors the real-time temperature of the re-injection box. When the temperature of the re-injection box reaches the temperature upper limit value of the intelligent control panel, the vehicle-mounted heating circulation system 1 stops heating.
[0022] It should be noted that in the overflow re-injection device, the overflow pipe and the re-injection pipe are wrapped with waterproof and flame-retardant thermal insulation cotton to prevent heat loss.
[0023] In this antifreeze device, Figure 4 FIG. 1 is a schematic diagram of the structure of a thermal energy storage system according to an embodiment of the present invention. Figure 4 As shown, the thermal energy storage system 3 includes an antifreeze buffer tank 8, a hot water inlet 13 and a hot water outlet 14. The upper end of one side of the antifreeze buffer tank 8 is connected to the hot water outlet 14, and the lower end of the other side of the antifreeze buffer tank 8 is connected to the hot water inlet 13.
[0024] In actual application, the antifreeze heated by the vehicle-mounted heating boiler circulation pump 7 is input into the antifreeze buffer tank 8 through the hot water inlet 13. The hot antifreeze is stored inside the antifreeze buffer tank 8. The hot antifreeze stored inside the antifreeze buffer tank 8 is output through the hot water outlet 14. The hot antifreeze in the antifreeze buffer tank 8 is input into the heating system 4.
[0025] In this antifreeze device, Figure 5 This is a schematic diagram of the structure of the reinjection pipe heating belt according to an embodiment of the present invention. Figure 6 Schematic diagram of the structure of the heat sink of the re-injection box according to an embodiment of the present invention. Figure 5 and Figure 6 As shown, the heat tracing heating system 4 includes a re-injection tank heat sink 9 and a re-injection pipe heat sink 12, the re-injection tank heat sink 9 is connected to the vehicle-mounted heating boiler circulation pump 1, the re-injection pipe heat sink 12 is connected to the antifreeze buffer tank 8, the re-injection tank heat sink 9 is connected to the re-injection pipe heat sink 12, the re-injection pipe heat sink 12 heats the re-injection pipe, and the re-injection tank heat sink 9 heats the re-injection tank.
[0026] The antifreeze device applied to the overflow re-injection device provided by the present invention can effectively overcome the problems of bursting of the interconnections between the overflow pipe, re-injection pipe, pipes and pipe fittings in the low temperature environment in winter, as well as freezing of low-temperature overflow waste liquid and agglomeration of oil stains, which affect the normal operation of the re-injection device.
[0027] In order to solve the problem that the overflow re-injection device cannot be used normally in a low temperature environment in winter, the present invention provides an antifreeze device applied to the overflow re-injection device. The antifreeze device provides a heat source through a vehicle-mounted boiler circulation heating system to heat the overflow re-injection device pipeline and the re-injection box. Waterproof and flame-retardant insulation cotton is wrapped outside the overflow pipe and the re-injection pipe to prevent heat loss. The normal construction of the overflow re-injection device in a low temperature environment can be achieved, and the safe, stable and efficient operation of the construction can be ensured. In actual application, the antifreeze device is mounted on the logging instrument winch and works simultaneously with the overflow re-injection device. The working process of the antifreeze device applied to the overflow re-injection device is described in detail below: In this embodiment, the vehicle-mounted heating circulation system 1, the automatic temperature control system 2, the thermal energy storage system 3 and the tracing heating system 4, the vehicle-mounted heating circulation system 1 includes a car battery 5, an automatic control switch 6 and a vehicle-mounted heating boiler circulation pump 7, the car battery 5 is connected to the automatic control switch 6, the lower end of the automatic control switch 6 is connected to the vehicle-mounted heating boiler circulation pump 7, the vehicle-mounted heating circulation system 1 is connected to the thermal energy storage system 3, the thermal energy storage system 3 includes an antifreeze buffer tank 8, a hot water inlet 13 and a hot water outlet 14, the upper end of one side of the antifreeze buffer tank 8 is connected to the hot water outlet 14, the lower end of the other side of the antifreeze buffer tank 8 is connected to the hot water inlet 13, the antifreeze buffer tank 8 is connected to the vehicle-mounted heating boiler circulation pump 7, the vehicle-mounted heating circulation system 7 is connected to the automatic temperature control system 2, and the automatic temperature control system 2 includes It includes an intelligent control panel 11 and a temperature control sensor 10. The lower end of the intelligent control panel 11 is connected to the temperature control sensor 10. The intelligent control panel 11 is connected to the automatic control switch 6. The automatic temperature control system 2 is connected to the overflow re-injection device. The overflow re-injection device includes a re-injection box, an overflow pipe and a re-injection pipe. The two sides of the re-injection box are respectively connected to the re-injection pipe and the overflow pipe. The thermal energy storage system 3 is connected to the heating system 4. The vehicle-mounted heating circulation system 1 is connected to the heating system 4. The heating system 4 includes a re-injection box heat sink 9 and a re-injection pipe heating belt 12. The re-injection pipe heating belt 12 is connected to the antifreeze buffer tank 8. The re-injection box heat sink 9 is connected to the re-injection pipe heating belt 12. The re-injection box heat sink 9 is connected to the vehicle-mounted heating boiler circulation pump 7. The re-injection pipe heating belt 12 heats the re-injection pipe. The re-injection box heat sink 9 heats the re-injection box.
[0028] In actual application, under the heating and driving of the vehicle-mounted heating boiler circulation pump 7, the antifreeze in the circulation system is heated and circulated, which is controlled by the automatic control switch 6 and the automobile fuel provides energy; the intelligent control panel 11 sets the temperature upper and lower lines, and intelligently controls the operation of the vehicle-mounted circulation heating system 1 through the temperature control sensor 10, which can realize remote control, automatic start and stop when the temperature of the refilling tank is higher than the upper and lower line temperatures, and timing switch and other intelligent automatic control functions; the antifreeze buffer tank 8 serves as a thermal energy storage and buffer system, stores the antifreeze output by the heating circulation pump, outputs the heated antifreeze in the tank, increases the total antifreeze amount of the circulation system, thereby achieving the storage and buffering effect of the thermal energy cycle; the hot antifreeze input into the antifreeze buffer tank 8 by the heating heating system 4 is heated by the refilling pipe heating belt 12, and then the overflow refilling tank is heated by the refilling tank heat sink 9, and the cooled antifreeze flows back to the vehicle-mounted heating circulation system, thereby achieving the antifreeze effect of the refilling pipeline and the overflow refilling tank in a low temperature environment.
[0029] In this embodiment, the antifreeze device provides safety protection for the injection profile logging field in winter. It has been installed and applied on site for 13 wells, with good results. It can effectively increase the temperature of the overflow reinjection pump box and the reinjection circulation pipeline. In the environment of -13°C at the logging site, the overflow reinjection pipeline can maintain a temperature of about 10°C under heating. The temperature of the overflow reinjection box can be maintained at about 3°C, and the overflow reinjection pipeline coil box can be maintained at about 4.5°C when the hatch is half closed, achieving the purpose of antifreeze.
[0030] The antifreeze device applied to the overflow and reinjection device provided by the present invention provides a heat source through the vehicle-mounted boiler circulation heating system to heat the overflow and reinjection device pipeline and the reinjection box, and wraps the overflow pipe and the reinjection pipe with waterproof and flame-retardant thermal insulation cotton to prevent heat loss, effectively overcoming the overflow and reinjection device in the low temperature environment in winter. The overflow pipe, reinjection pipe, pipes and pipe fittings are interconnected and burst, and the normal construction of the overflow and reinjection device in the low temperature environment is realized, ensuring the safe, stable and efficient operation of the construction.
[0031] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention should be defined by the claims.
Claims
1. An antifreeze device for an overflow re-injection device, It is characterized in that include: An on-board heating circulation system (1), an automatic temperature control system (2), a heat storage system (3) and a heat tracing heating system (4), wherein the on-board heating circulation system (1) is connected to the heat storage system (3), the on-board heating circulation system (1) is connected to the automatic temperature control system (2), the on-board heating circulation system (1) is connected to an overflow re-injection device, the heat storage system (1) is connected to the heat tracing heating system (4), the heat tracing heating system (4) is connected to the overflow re-injection device, the automatic temperature control system (2) is connected to the overflow re-injection device, the on-board heating circulation system (1) is capable of heating the overflow re-injection device, the automatic temperature control system (2) controls the heating temperature of the on-board heating circulation system (1), the automatic temperature control system (2) monitors the real-time temperature of the overflow re-injection device, and the heat tracing heating system (4) heats the overflow re-injection device.
2. The antifreeze device for overflow refilling device according to claim 1, It is characterized in that The vehicle-mounted heating circulation system (1) comprises a vehicle battery (5), an automatic control switch (6) and a vehicle-mounted heating boiler circulation pump (7), wherein the vehicle battery (5) is connected to the automatic control switch (6), and the lower end of the automatic control switch (6) is connected to the vehicle-mounted heating boiler circulation pump (7).
3. The antifreeze device applied to the overflow re-injection device according to claim 2, It is characterized in that The automatic control switch (6) controls the opening and closing of the vehicle-mounted heating boiler circulation pump (7).
4. The antifreeze device for overflow refilling device according to claim 1, It is characterized in that The automatic temperature control system (2) comprises an intelligent control panel (11) and a temperature control sensor (10), wherein the lower end of the intelligent control panel (11) is connected to the temperature control sensor (10), and the intelligent control panel (11) is connected to the automatic control switch (6).
5. The antifreeze device applied to the overflow re-injection device according to claim 4, It is characterized in that The intelligent control panel (11) is provided with a temperature preset value, the temperature preset value comprising a temperature upper limit value and a temperature lower limit value, the temperature control sensor (10) controls the heating temperature of the vehicle-mounted heating circulation system (1), the intelligent control panel (11) monitors the real-time temperature of the overflow re-injection device, and controls the heating switch and heating time of the vehicle-mounted heating circulation system (1) through the intelligent control panel (11).
6. The antifreeze device for overflow refilling device according to claim 5, It is characterized in that The overflow re-injection device comprises a re-injection box, an overflow pipe and a re-injection pipe, the two sides of the re-injection box are respectively connected to the re-injection pipe and the overflow pipe, the intelligent control panel (11) monitors the real-time temperature of the re-injection box, and when the temperature of the re-injection box reaches the temperature upper limit value of the intelligent control panel (11), the vehicle-mounted heating circulation system (1) stops heating.
7. The antifreeze device for overflow refilling device according to claim 1, It is characterized in that The thermal energy storage system (3) comprises an antifreeze buffer tank (8), a hot water inlet (13) and a hot water outlet (14); the upper end of one side of the antifreeze buffer tank (8) is connected to the hot water outlet (14), and the lower end of the other side of the antifreeze buffer tank (8) is connected to the hot water inlet (13).
8. The antifreeze device for overflow refilling device according to claim 7, It is characterized in that The antifreeze heated by the on-board heating boiler circulation pump (7) is input into the antifreeze buffer tank (8) through the hot water inlet (13); the hot antifreeze is stored in the antifreeze buffer tank (8); the hot antifreeze stored in the antifreeze buffer tank (8) is output through the hot water outlet (14); and the hot antifreeze in the antifreeze buffer tank (8) is input into the heating system.
9. The antifreeze device for overflow refilling device according to claim 6, It is characterized in that The heat tracing heating system (4) comprises a re-injection box heat sink (9) and a re-injection pipe heat sink (12), the re-injection box heat sink (9) is connected to the re-injection pipe heat sink (12), the re-injection pipe heat sink (12) heats the re-injection pipe, and the re-injection box heat sink (9) heats the re-injection box.