CN116057252A - Method and equipment for directionally and quantitatively heating formation water in delayed mode - Google Patents
Method and equipment for directionally and quantitatively heating formation water in delayed mode Download PDFInfo
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- CN116057252A CN116057252A CN202280005147.2A CN202280005147A CN116057252A CN 116057252 A CN116057252 A CN 116057252A CN 202280005147 A CN202280005147 A CN 202280005147A CN 116057252 A CN116057252 A CN 116057252A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 88
- 239000008398 formation water Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000003111 delayed effect Effects 0.000 title claims description 7
- 238000009413 insulation Methods 0.000 claims abstract description 48
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 19
- 239000011707 mineral Substances 0.000 claims abstract description 19
- 238000005265 energy consumption Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 62
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000008016 vaporization Effects 0.000 claims 1
- 238000009834 vaporization Methods 0.000 claims 1
- 238000005065 mining Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000012261 overproduction Methods 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/04—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using electrical heaters
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/2401—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection by means of electricity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Resistance Heating (AREA)
- General Induction Heating (AREA)
Abstract
A method for heating formation water, namely, a horizontal well heater with special structural design is utilized to heat the formation water, the directional quantitative delay is utilized to heat Fang Shuiceng on a horizontal well, the downward transfer of heat energy is blocked, and the mining energy consumption is reduced. An electric heater for a horizontal well, the structure of which comprises: alpha angle structure of slotted screen, heat insulation system and heating system, wherein alpha = arctan (h Well depth /r)，h Well depth And r is the well spacing of the heating well which is 1/2 of the distance from the horizontal section of the heating horizontal well to the overlying mineral resource reservoir.
Description
The method and the equipment are suitable for mining resources by a stratum water heating method in the energy industry.
Energy conservation, emission reduction and efficiency enhancement are the imperative innovation targets in the energy industry at present. Through theoretical and digital-analog verification, the method for exploiting the oil and gas by utilizing the oil and gas reservoir side/bottom water resources can break through the current situation that the oil and gas exploitation is in the bottleneck, under the condition of no energy-saving design, the oil and gas recovery ratio can reach 81-86%, the electricity cost per ton of oil and gas is 950-1194 yuan/ton, and the energy consumption per ton of oil and gas is 66.6-83.7X10 5 kJ/t, average over production periodThe oil extraction speed can reach 6.23-7.8, and the average oil extraction speed in the oil extraction stage is 10-14.3%.
The heat loss of the stratum water heating method is concentrated in the heat loss of the stratum below the plane of the heating horizontal well, and the heat loss accounts for about 1/2 of the total output energy. Through the structural design of the heating horizontal well, energy is saved, the downward heat energy transfer can be saved theoretically, and the ton oil energy consumption can be reduced to 33.3-427 multiplied by 10 5 kJ/t。
The utility model provides a CN201480001286.3 horizontal well electrical heating oil reservoir side bottom water layer thermal recovery method, discloses an electric heater structure for heating stratum water. This structure can theoretically save at least 1/3 of the heat energy loss. However, this structure has the fatal disadvantage that the outside of the screen pipe is not provided with a heat insulation layer, and the electric heat is conducted through the screen pipe and can be transmitted downwards, so that the heat insulation effect is poor.
A directional quantitative delay heating method for stratum water is characterized in that according to the designed distance h between the horizontal section of a heating horizontal well and an overlying mineral resource reservoir Well depth The method comprises the steps of designing an alpha angle structure and a heat insulation system on a slotted screen pipe of a horizontal well heater, then selecting the horizontal well heater containing the alpha angle structure to heat stratum water, directionally and quantitatively heating stratum water and mineral resource reservoirs above the horizontal well, delaying heating of stratum water in the alpha angle range, blocking the heating of the horizontal well to transfer heat energy to a water layer below the horizontal well, and accordingly improving the heat effect of the heating horizontal well and the ratio of production value to energy consumption of mineral resources.
Method for directional quantitative delay heating of formation water, in which alpha-angle structure of slotted screen pipe, alpha=arctan (h Well depth /r)，h Well depth For heating the distance between the horizontal section of the horizontal well and the overlying mineral resource reservoir, r is 1/2 of the well distance of the heating well; the alpha-angle top angle is arranged at the center of the slotted screen pipe (6),the central line perpendicular to the diameter of one side of the angle alpha is taken as a symmetry axis, and is distributed symmetrically left and right to form 2 intersecting lines (13) with the slit; taking the intersecting line as a boundary line, one side of the screen pipe containing the alpha angle is not slotted, and the other side of the screen pipe containing the alpha angle is not slotted; one side of the screen pipe slit is opposite to the mineral resource reservoir.
The upper surface of the horizontal well heater heat insulating plate is provided with a heat insulating layer ((9)), and a heat insulating plate bracket ((7)) is arranged between the upper surface of the horizontal well heater heat insulating plate and the wall of the screen pipe which is not slotted.
When the horizontal well heater with the alpha angle and the heat insulation system structural design is used for heating the stratum water, the water area 6 in the (pi-2 alpha) range is heated and gasified preferentially, the water area 7 in the alpha angle control range is out of the heat radiation range of the horizontal well heater, and the water body 8 at the high position of the water area can gradually compensate the water level of the gasified water body of the water area 6 and delay heating.
An electric heater for a horizontal well for directionally and quantitatively delaying heating formation water, which structurally comprises: alpha angle structure, heat insulation system and heating system of slotted screen pipe, wherein alpha angle structure, alpha = arctan (h Well depth /r)，h Well depth For heating the distance between the horizontal section of the horizontal well and the overlying mineral resource reservoir, r is 1/2 of the well distance of the heating well; the alpha angle top angle is arranged at the center of a slot screen pipe (6), and is symmetrically distributed left and right by taking a central line perpendicular to the diameter of one side of the alpha angle as a symmetry axis to form 2 intersecting lines (13) with slots; and the intersecting line is taken as a boundary line, the sieve tube on one side containing the alpha angle is not slotted, and the arc section of the sieve tube opposite to the alpha angle (pi-2 alpha) is not slotted.
An electric heater for a horizontal well for directionally and quantitatively delaying heating formation water, which structurally comprises the heat insulation system and comprises: the heat insulation plate (4) is arranged in the slotted screen pipe and is in sealing connection with the slotted screen pipe at the intersection line; the sealing plate (5) seals the cavity formed by the heat insulation plate and the non-slotted screen pipe.
An electric heater for a horizontal well for directionally and quantitatively delaying heating formation water comprises a heating system including, but not limited to, a heating coil (2), and is fixed on the heat insulation plate on the slotting side of a screen pipe.
The outer side of the screen pipe non-slotting area of the electric heater for the horizontal well for directionally and quantitatively delaying heating stratum water is provided with a waterproof, abrasion-resistant and high-temperature-resistant heat insulation layer (8); the inner side of the screen pipe non-slotting area is provided with a high temperature resistant heat insulation layer.
The upper surface of the heat insulation board of the electric heater for the horizontal well for directionally and quantitatively delaying heating stratum water is provided with a reflective, corrosion-resistant and high-temperature-resistant heat insulation layer (9).
The electric heater for horizontal well is fixed between the insulating board and the non-slotted area of screen pipe, and the insulating board support (7) is fixed between the insulating board and the non-slotted area of screen pipe.
The electric heater for horizontal well is used to heat stratum water in certain amount and has heat insulating function and heat insulating boards in the longitudinal direction of horizontal well.
The electric heater for the horizontal well, which is used for directionally and quantitatively heating stratum water in a delayed manner, is characterized in that a heat insulation plate, an undeployed screen pipe and sealing plates (5) at two ends of the screen pipe are connected in a sealing mode to form a vacuum cavity, wherein the sealing plates have the functions of corrosion resistance, high temperature resistance and heat insulation.
The electric heater for the horizontal well for directionally and quantitatively delaying heating stratum water is characterized in that a heating coil bracket (3) which is provided with a vertical horizontal section, waterproof, anticorrosion and heat insulation functions is fixed on the heat insulation plate.
The electric heater for horizontal well is used for directionally and quantitatively delaying heating stratum water, and the heating coil are fixed on the heat insulation plate together.
The heating coil is connected with a power supply through a wire and a switch.
The heating coil adjusts the current in the coil through the sliding resistor.
The coils are connected to each other in series, or in parallel, or in a combination of series and parallel.
The coil connection mode is direct connection or connection by high-temperature-resistant water cable or wire.
The horizontal well electric heater for directionally and quantitatively heating stratum water in a delayed mode is characterized in that an iron core is arranged in a heating coil, and the heating coil and the iron core are fixed on a heat insulation plate through a coil bracket.
The electric heater for the horizontal well for directionally and quantitatively delaying heating the stratum water is characterized in that the screen pipe slit (11) is in a strip shape or a round hole shape, and the shape is not limited to the shape.
The heating coil may be energized with direct current or alternating current.
And (3) alternating current is supplied, and an iron rod in the coil is a soft iron rod.
And (3) applying direct current, wherein an iron rod in the coil is an iron rod containing iron, nickel and cobalt.
The water in the water layer may be natural formation water; can be manually injected water; or a mixture of both.
The overburden mineral resource reservoir may be any formation to be heated, not limited to hydrocarbon reservoirs, coal seams, hydrocarbon source formations.
h Well depth The horizontal well heater is at a minimum depth from the bottom surface of the overburden mineral resource reservoir.
The alpha structure of the slotted screen pipe and the design of the heat insulation system directly limit the heat radiation energy of the heating coil within the angle range of (pi-2 alpha), and take the 4r at the stratum interface as the bottom edge, h Well depth Is a triangular prism water body with a height and in the upper oil-gas layer, and can block the total output heat energy of [ (pi+2alpha)/2 pi]When alpha is more than or equal to 0, the energy is saved by more than 1/2; by means of alpha angle design, water bodies in the angle range (pi-2 alpha) are heated preferentially, and water bodies in the angle range (pi-2 alpha) are supplemented gradually and evaporated; the water body in the alpha range is heated in a delayed way, so that the formation water preheating time and the heat energy loss in the production process are reduced.
Figure 1 is a schematic diagram of the energy-saving principle of the structural design of the angle alpha of the slotted screen pipe.
FIG. 2 is a schematic diagram of the energy-saving principle of heating a water layer by directional quantitative delay of a horizontal well.
1. A mineral resource reservoir; 2. a water layer; 3. a resource reservoir interface with the water layer; 4. heating horizontal well stationIn the plane; 5. heating the horizontal well; 6. heating a heat direct radiation area of the horizontal well; 7. alpha angle control body of water in screen structure, alpha = arctan (h Well depth 2 r), wherein the water body in the area is a heat radiation unswept area; 8. the water body in the area is supplemented to the area 6 to supplement the water level; 9.1/2 of the well spacing of the heating horizontal well; 10. the horizontal well section is vertically deep from the bottom surface of the overburden formation.
FIG. 3 is a schematic diagram of the cross-sectional structure of an electric heater for heating a horizontal well.
FIG. 4 is a schematic diagram of a longitudinal section structure of an electric heater for heating a horizontal well.
(1) An iron core; (2) a heating coil; (3) a coil support; (4) a heat insulating plate; (5) a sealing plate; (6) cutting a slit sieve tube; (7) a heat shield support; (8) a screen pipe outer heat insulation layer; (9) a heat insulation layer is arranged on the heat insulation plate; a screen pipe inner heat insulation layer; slotting the screen pipe; a cavity closed by the heat insulation plate, the non-slotting area of the sieve tube and the sealing plate; the dashed lines represent the horizontal and vertical directions, the two sides of the angle alpha and the intersection line with the slotted screen.
Note that: the examples in the figures do not represent actual dimensions or proportions, but merely represent interrelationships between the structures.
For the bottom water oil and gas reservoir, the bottom water develops, and the bottom water vapor is utilized to drive and extract oil and gas, so that the production effect is optimal after the implementation of the invention.
According to the designed distance h between the horizontal section of the heating horizontal well and the overlying mineral resource reservoir Well depth 1/2 heating horizontal well distance r, horizontal well heater and water layer heat conduction characteristics, designing an appropriate alpha angle structure and a heat insulation system on a slotted screen pipe of the horizontal well heater, selecting the horizontal well heater comprising the structure, and placing the horizontal well heater on a mineral resource reservoir h Well depth And (3) heating the formation water at the position, boiling the formation water in a pressure-control and pressure-stabilization mode, and then mining mineral resources until the production is finished.
The method for exploiting the oil gas by utilizing the oil gas reservoir side/bottom water resource can break through the current situation that the oil gas exploitation is in the bottleneck, under the condition of no energy-saving design, the oil gas recovery ratio can reach 81-86%, the electricity cost per ton oil is 950-1194 yuan/ton, and the energy consumption per ton oil is 66.6-83.7X10 5 The average oil extraction speed in the whole production stage can reach 6.23-7.8, and the average oil extraction speed in the oil extraction stage is 10-14.3%.
The heat loss of the stratum water heating method is concentrated in the heat loss of the stratum below the plane of the heating horizontal well, and the heat loss accounts for about 1/2 of the total output energy. Through the structural design of the heating horizontal well, energy is saved, the downward heat energy transfer can be saved theoretically, and the ton oil energy consumption can be reduced to 33.3-427 multiplied by 10 5 kJ/t。
Claims (14)
- A directional quantitative delay heating method for stratum water is characterized in that according to the designed distance h between the horizontal section of a heating horizontal well and an overlying mineral resource reservoir Well depth The method comprises the steps of designing an alpha angle structure and a heat insulation system on a slotted screen pipe of a horizontal well heater, then selecting the horizontal well heater containing the alpha angle structure to heat stratum water, directionally and quantitatively heating stratum water and mineral resource reservoirs above the horizontal well, delaying heating of stratum water in the alpha angle range, blocking the heating of the horizontal well to transfer heat energy to a water layer below the horizontal well, and accordingly improving the heat effect of the heating horizontal well and the ratio of production value to energy consumption of mineral resources.
- The method of claim 1, wherein the slotted screen has an alpha angle configuration wherein,α=arctan(h well depth /r)，h Well depth For heating the distance between the horizontal section of the horizontal well and the overlying mineral resource reservoir, r is 1/2 of the well distance of the heating well;the alpha angle top angle is arranged at the center of a slot screen pipe (6), and is symmetrically distributed left and right by taking a central line perpendicular to the diameter of one side of the alpha angle as a symmetry axis to form 2 intersecting lines (13) with slots;taking the intersecting line as a boundary line, one side of the screen pipe containing the alpha angle is not slotted, and the other side of the screen pipe containing the alpha angle is not slotted;one side of the screen pipe slit is opposite to the mineral resource reservoir.
- A method of directionally and quantitatively delayed heating formation water as in claim 1 wherein the horizontal well heater insulation system comprises: the screen pipe non-slotting area is provided with an inner wall heat insulation layer ((d)) and an outer wall heat insulation layer ((8)), a heat insulation plate ((4)), a heating coil support ((3)), and a vacuum cavity (12) closed by the heat insulation plate, a sealing plate (5) and the screen pipe non-slotting area.
- A method for directional quantitative delayed heating of formation water according to claim 3, wherein a heat insulating layer ((9)) is provided on the upper surface of the well heater heat insulating plate, and a heat insulating plate support ((7)) is provided between the heat insulating plate and the wall of the screen pipe which is not slit.
- The method for directional quantitative delay heating of formation water according to claim 1, wherein when the formation water is heated by a horizontal well heater comprising an angle α and a heat insulation system structure design, the water area 6 in the range of (pi-2α) is heated and vaporized preferentially, the water area 7 in the control range of the angle α is out of the heat radiation range of the horizontal well heater, and the water body 8 at the high position of the water area gradually compensates the vaporization water body level of the water area 6 and is heated in a delay manner.
- An electric heater for a horizontal well for directionally and quantitatively delaying heating formation water, which is characterized in that the structure of the electric heater for the horizontal well comprises: an alpha angle structure of a slotted screen pipe, a heat insulation system and a heating system, wherein,the alpha angle structure of the slotted screen pipe,α=arctan(h well depth /r)，h Well depth To heat the levelThe distance between the horizontal section of the well and the overlying mineral resource reservoir is 1/2 of the well distance of the heating well;the alpha angle top angle is arranged at the center of a slot screen pipe (6), and is symmetrically distributed left and right by taking a central line perpendicular to the diameter of one side of the alpha angle as a symmetry axis to form 2 intersecting lines (13) with slots;taking the intersecting line as a boundary line, the sieve tube at one side containing the alpha angle is not slotted, and the arc section of the sieve tube opposite to the (pi-2 alpha) containing the alpha angle is not slotted;the insulation system comprises:the heat insulation plate (4) is arranged in the slotted screen pipe and is in sealing connection with the slotted screen pipe at the intersection line;the sealing plate (5) seals the cavity (12) formed by the heat insulation plate and the non-slotted screen pipe;the heating system, including but not limited to a heating coil (2), is fixed on the heat insulation plate at one side of the screen slotting segment.
- The electric heater for horizontal well of claim 6, wherein the electric heater is configured to heat formation water in a directional and quantitative manner,a waterproof, abrasion-resistant and high-temperature-resistant heat insulation layer (8) is arranged on the outer side of the screen pipe non-slotting area;the inner side of the screen pipe non-slotting area is provided with a high temperature resistant heat insulation layer.
- The electric heater for horizontal well with directional and quantitative delay heating of stratum water according to claim 6, wherein the heat-insulating plate and the sieve tube are arranged in concentric circles, and two ends of the heat-insulating plate are bent and are connected with the parting line of the sieve tube in a sealing way;the upper surface of the heat insulation board is provided with a reflective, corrosion-resistant and high-temperature-resistant heat insulation layer (9);and fixing a heat-insulating plate support (7) between the heat-insulating plate and the non-slotted area of the sieve tube.
- The electric heater for horizontal well with directional and quantitative delay heating of formation water according to claim 8, wherein the heat shield support has a heat shield function and is arranged longitudinally along the horizontal well.
- The electric heater for horizontal well with directional and quantitative delay heating of stratum water according to claim 6, wherein the heat insulating plate, the non-slotted screen pipe and sealing plates at two ends of the screen pipe are connected in a sealing way to form a vacuum cavity, wherein the sealing plates have the functions of corrosion resistance, high temperature resistance and heat insulation.
- The electric heater for horizontal well with directional and quantitative delay heating of stratum water according to claim 6, wherein the heating coil bracket (3) with waterproof, anticorrosion and heat insulation functions of the vertical horizontal section is fixed on the heat insulation plate.
- The electric heater for horizontal well of claim 6, wherein the electric heater is configured to heat formation water in a directional and quantitative manner,the coil bracket and the heating coil are fixed on the heat insulation plate together;the heating coil is connected with a power supply through a wire and a switch;the heating coil adjusts the current in the coil through the sliding resistor;the coils are connected with each other in series, or in parallel, or in a series-parallel combination mode;the coil connection mode is direct connection or connection by high-temperature-resistant water cable or wire.
- The electric heater for horizontal well of claim 6, wherein the heating coil has an iron core, and the heating coil and the iron core are fixed on the heat insulation board by a coil bracket.
- The electric heater for horizontal well with directional and quantitative delay heating of formation water according to claim 6, wherein the screen slit (11) is in a strip shape or a round hole shape, not limited to the above shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110330593.8A CN112855079B (en) | 2021-03-29 | 2021-03-29 | Immersed horizontal well electric heater for heating formation water |
| PCT/CN2022/083517 WO2022206713A1 (en) | 2021-03-29 | 2022-03-28 | Method and device for heating formation water directionallay and quantitatively in delayed manner |
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| Publication Number | Publication Date |
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| CN116057252A true CN116057252A (en) | 2023-05-02 |
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| CN202110330593.8A Active CN112855079B (en) | 2021-03-29 | 2021-03-29 | Immersed horizontal well electric heater for heating formation water |
| CN202280005147.2A Pending CN116057252A (en) | 2021-03-29 | 2022-03-28 | Method and equipment for directionally and quantitatively heating formation water in delayed mode |
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| CN202110330593.8A Active CN112855079B (en) | 2021-03-29 | 2021-03-29 | Immersed horizontal well electric heater for heating formation water |
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| CN112855079B (en) * | 2021-03-29 | 2023-01-17 | 北京红蓝黑能源科技有限公司 | Immersed horizontal well electric heater for heating formation water |
| CN114016979A (en) * | 2021-11-05 | 2022-02-08 | 北京红蓝黑能源科技有限公司 | Oil and gas exploitation method for injecting water into water layer of oil and gas reservoir |
| CN114183108B (en) * | 2021-12-21 | 2023-02-21 | 北京红蓝黑能源科技有限公司 | Method for improving transverse driving force in bottom steam flooding oil gas production process |
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- 2021-03-29 CN CN202110330593.8A patent/CN112855079B/en active Active
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- 2022-03-28 WO PCT/CN2022/083517 patent/WO2022206713A1/en active Application Filing
- 2022-03-28 CN CN202280005147.2A patent/CN116057252A/en active Pending
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| CA2808723A1 (en) * | 2013-03-04 | 2014-09-04 | Husky Oil Operations Limited | Electrical heating method for a hydrocarbon formation, and improved thermal recovery method using electrical pre-heating method |
| RU2569375C1 (en) * | 2014-10-21 | 2015-11-27 | Николай Борисович Болотин | Method and device for heating producing oil-bearing formation |
| CN107514245A (en) * | 2017-10-23 | 2017-12-26 | 大庆东油睿佳石油科技有限公司 | A kind of method of gas hydrates row formula horizontal wells |
| CN107542438A (en) * | 2017-10-23 | 2018-01-05 | 大庆东油睿佳石油科技有限公司 | A kind of method of parallel water horizontal well exploitation of gas hydrate |
| CN112855079A (en) * | 2021-03-29 | 2021-05-28 | 北京红蓝黑能源科技有限公司 | Immersed horizontal well electric heater for heating formation water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112855079A (en) | 2021-05-28 |
| CN112855079B (en) | 2023-01-17 |
| WO2022206713A1 (en) | 2022-10-06 |
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