CN109609224A - Water removal cooling device and its implementation for shale gas - Google Patents
Water removal cooling device and its implementation for shale gas Download PDFInfo
- Publication number
- CN109609224A CN109609224A CN201811473239.5A CN201811473239A CN109609224A CN 109609224 A CN109609224 A CN 109609224A CN 201811473239 A CN201811473239 A CN 201811473239A CN 109609224 A CN109609224 A CN 109609224A
- Authority
- CN
- China
- Prior art keywords
- water
- shale gas
- temperature
- heat exchanger
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/106—Removal of contaminants of water
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/001—Cooling arrangements
Abstract
For the water removal cooling device and its implementation of shale gas, it is related to the technical field of shale gas de-watering apparatus.The high temperature and humidity gas that the present invention comes out from shale enters air inlet pipe, flow velocity enters sandwich plate piece heat exchanger after quickly reducing and carries out caloic exchange, by constrictor Accelerating Removal, the condensed water generated in interlayer plate heat exchanger and the separation water that slows down then pass through drain valve and flow into following water storage box under gravity natural gas after cooling water removal.The chilled water of low temperature flows into interlayer plate heat exchanger by drip tray under gravity, enters water storage box under the effect of gravity and cools down, the chilled water in water storage box squeezes into drip tray by the first water pump.Chilled water after heating is entered in protected against explosion cooling by wind by the second water pump, after water temperature drop, flows back to water storage box.The configuration of the present invention is simple realizes and removes water good cooling effect, the high-efficient purpose of water removal cooling to shale gas.
Description
Technical field
The present invention relates to a kind of shale gas de-watering apparatus more particularly to a kind of shale gas based on condensation of slowing down to remove water cooling
Device belongs to the technical field of petroleum, natural gas extraction.
Background technique
Shale gas refers to the Unconventional gas preserved in series of rocks based on preservation Yu Yifu organic shale, is continuous life
At biochemical genesis air and heat origin cause of formation gas or both mixing, can be present in intrinsic fracture and hole with free state, to inhale
Attached state is present in kerogen, clay particle surface, and there are also minute quantities to be stored in kerogen and asphalitine with dissolved state, dissociates
Gas ratio is generally 20%~85%.Shale gas exploitation technology mainly includes horizontal well technology and multiple fracturing technology, riverfrac treatment
Technology, multiple fracturing technique and newest synchronous fracturing technique.
It is usually pressed from both sides during shale gas exploitation due to there is the injection of large quantity of moisture, thus from the shale gas generated in interlayer
With this large amount of water and steam, if not reducing the water content in shale gas, by the quality of strong influence shale gas, simultaneously
Moisture in shale gas is excessively high will to generate freezing partly in cold district to influence the service life of the components of conveyance conduit.Therefore
The shale gas generated from interlayer must take corresponding measure to carry out cooling water removal to it, to ensure to entirely with gas highly effective and safe.
Summary of the invention
It is an object of the present invention to provide a kind of structure is simple, good cooling effect is removed water to shale gas, water removal cooling is high-efficient
Water removal cooling device and its implementation for shale gas.
For the water removal cooling device of shale gas, including three independent systems: 1, shale gas water scavenging system；2, chilled water
The circulatory system；3, chilled water cooling system.
Shale gas water scavenging system of the invention includes air inlet pipe, escape pipe, and the outlet side of air inlet pipe passes through expander and changes
One end of hot device connects, and the other end of heat exchanger is connected by the inlet end of constrictor and escape pipe；Draining is set on heat exchanger
Valve；
Freezing water circulation system includes drip tray above the shale gas water scavenging system, below shale gas water scavenging system
Several through-holes are arranged in water storage box, the bottom of drip tray；Drip tray is connect by the first water pump with water storage box.
Chilled water cooling system includes water cooler, and setting is used to form the two of recirculated water between water cooler and water storage box
Root water pipe, wherein arranging the first water pump on a water pipe；Water cooler is protected against explosion cooling by wind.
Further, heat exchanger of the invention is interlayer plate heat exchanger.
Further, interlayer plate heat exchanger of the invention includes the cuboid clamping plate of several parallel arrangements, two neighboring
The channel that setting is flowed between clamping plate convenient for the chilled water in drip tray.
Further, the external of present invention heat exchanger is laid with radiation coating, such as nano ceramic coat.
Further, honeycomb water absorber, the honeycomb water absorber and row are set at heat exchanger internal vent of the invention
Water valve is corresponding.
Shale gas water scavenging system working principle are as follows: the high temperature and humidity gas come out from shale enters air inlet pipe, then leads to
Expander is crossed, flow velocity enters heat exchanger after quickly reducing, and the moisture in entrainment in natural gas collects under gravity at this time
To exchanger base, simultaneously because heat exchanger outer loop low temperature chilled water, pass through the day of low temperature chilled water and high temperature and humidity
Right gas carries out caloic exchange, and natural gas temperature reduces, and the water capacity of natural gas reduces.Natural gas after cooling water removal at this time passes through
Constrictor accelerates, and is then discharged into natural gas transportation and stocking system by escape pipe；The condensed water generated in heat exchanger
Then pass through drain valve with the separation water that slows down and flows into following water storage box under gravity.
Freeze water circulation system working principle are as follows: the chilled water of low temperature flows into heat exchange by drip tray under gravity
Device, in heat exchanger, heat in chilled water system natural gas, water temperature is increased, and is entered water tank under the effect of gravity and is cooled down, drop
Chilled water is squeezed into drip tray by the first water pump by the chilled water after temperature.
Chilled water cooling system are as follows: the chilled water after heating is entered in protected against explosion cooling by wind by the second water pump,
After water temperature drop, water storage box is flowed back to.
The present invention is used for the water removal cooling device of shale gas, and one side utilizes the principle of expanding deceleration, by shale gas
It is flowed into a large space environment, reduces its flow velocity, so that the water droplet carried secretly in shale gas gathers under gravity
Collection is in bottom；On the other hand using the principle of freezing water removal, low temperature chilled water is flowed into outside shale gas, to realize shale gas
The reduction of temperature, while part water vapour is condensed into liquid water, last liquid water is flowed out by automatic drain valve, to realize
The cooling of shale gas efficient water-removing.
For the water removal cooling device and its implementation of shale gas, include the following steps:
Step 1: shale gas water scavenging system works: after the first water pump opens 1min, opening air inlet, shale gas is from air inlet pipe
Into carrying out cooling water removal, the temperature and water capacity of monitoring outlet shale gas；When outlet temperature and water capacity are lower than setting value
When, the first water pump frequency is reduced to reduce chilled water internal circulating load；
Step 2: chilled water cooling system works: being first turned on the second water pump, open water cooler after 1min, when water storage box temperature
When degree is lower than 10 DEG C of set temperature, off-load is carried out until closing the unit, when water storage box temperature to protected against explosion cooling by wind
When higher than 13 DEG C of set temperature, protected against explosion cooling by wind is opened until the unit is loaded until fully loaded；
Step 3: freezing water circulation system work: when freezing water circulation system temperature lower than 13 DEG C of set temperature, to shale gas
Water scavenging system supplements chilled water, and further cool down to shale gas water removal.When water storage box temperature is lower than 13 DEG C of set temperature, open
First water pump, chilled water flow into interlayer plate heat exchanger by drip tray, and further cool down to shale gas water removal.
The present invention by adopting the above technical scheme, has the advantages that compared with prior art
1, the present invention takes away the temperature of shale gas using chilled water, while reducing temperature, realizes the water removal to shale gas, full
Structure is simple while sufficient technique requires, and water rem oval is high.
2, the present invention separates the moisture of gas entrainment using slowing down, and water removing structure is simple, and water removal mode is reliable.
3, further depth removes water the present invention by the way of frozen cooling water removal, can satisfy multi-state requirement.
4, whole system of the invention uses Explosion-proof Design, sets especially for natural gas contact site without any electricity consumption
Standby, system is safe and reliable.
5, the present invention is laid with radiation coating outside heat exchanger, heat exchanger surface temperature can be greatly lowered, inside goes out
Honeycomb water absorber is set at mouthful, and the spray water that may be implemented in shale gas is inhaled into, and is flowed under the action of difference in height
Exchanger base.
6, the present invention is comprehensive uses the sides such as chilled water, dehumidifying of slowing down, the dehumidifying of external radiation cooling, absorption gravity dehumidifying
Formula enhances the effect of cool-down dehumidification, and structure is simple, and cool-down dehumidification is high-efficient.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram of interlayer plate heat exchanger of the present invention.
Specific embodiment
Technical solution of the present invention is described in detail with reference to the accompanying drawing:
As shown in Figure 1, being used for the water removal cooling device of shale gas, including three independent systems: 1, for reducing shale temperature
The shale gas water scavenging system of degree, removal shale gas moisture；2, it is connect with shale gas water scavenging system, removes water system for reducing shale gas
The freezing water circulation system for temperature of uniting；3, it is connect with freezing water circulation system, for reducing the cold of freezing water circulation system temperature
Freeze water cooling system.
Shale gas water scavenging system of the invention includes air inlet pipe 1, escape pipe 5, and the outlet side of air inlet pipe 1 passes through expander 2
It is connect with one end of heat exchanger 3, the other end of heat exchanger 3 is connect by constrictor 4 with the inlet end of escape pipe 5；On heat exchanger 3
Drain valve 6 is set.Heat exchanger 3 of the invention is interlayer plate heat exchanger.
Freezing water circulation system of the invention includes drip tray 9 above the shale gas water scavenging system, is located at shale gas
Several through-holes are arranged in water storage box 7 below water scavenging system, the bottom of drip tray 9；Drip tray 9 passes through the first water pump 8 and water storage
Case 7 connects.First water pump 8 of the invention is protected against explosion variable frequency pump.
Chilled water cooling system of the invention includes water cooler 10, and two are arranged between water cooler 10 and water storage box 7
Water pipe, wherein arranging the first water pump 11 on a water pipe.Water cooler 10 of the invention is explosion-proof cooling by wind.
As shown in Fig. 2, interlayer plate heat exchanger of the invention includes the cuboid clamping plate 31 of several parallel arrangements, it is adjacent
The channel 32 that setting is flowed between two clamping plates 31 convenient for the chilled water in drip tray 9.It is changed by air inlet pipe 1 into interlayer is board-like
The high temperature and humidity gas of hot device flows in clamping plate 31, is discharged after cool-down dehumidification by escape pipe 5.It is formed between clamping plate 31
Certain gap, the chilled water of drip tray 9 pass through the outer surface of clamping plate 31, gas in clamping plate are taken away during flowing
Temperature, the interior condensed water generated of clamping plate concentrate discharge by honeycomb water absorber and drain valve 6.
For the water removal cooling device and its implementation of shale gas, include the following steps:
Step 1: shale gas water scavenging system works: after the first water pump 8 opens 1min, opening air inlet, shale gas is from air inlet pipe
1 enters, and carries out cooling water removal, monitors the temperature and water capacity of 5 exit shale gas of escape pipe；When outlet temperature and water capacity are low
When setting value, the first water pump frequency is reduced to reduce chilled water internal circulating load；
Step 2: chilled water cooling system works: being first turned on the second water pump 11, open protected against explosion cooling by wind after 1min
10, when 7 temperature of water storage box is lower than 10 DEG C of set temperature, off-load is carried out until closing the machine to protected against explosion cooling by wind 10
Group is opened protected against explosion cooling by wind 10 and is loaded until fully loaded when 7 temperature of water storage box is higher than 13 DEG C of set temperature；
Step 3: freezing water circulation system work: when freezing water circulation system temperature lower than 13 DEG C of set temperature, to shale gas
Water scavenging system supplements chilled water, and further cool down to shale gas water removal.When 7 temperature of water storage box is lower than 15 DEG C of set temperature, beat
The first water pump 8 is opened, chilled water flows into interlayer plate heat exchanger 3 by drip tray 9, and further cool down to shale gas water removal.
The present invention is for including the whole system including the first water pump 8, the second water pump 11, protected against explosion cooling by wind 10
Control is all made of Explosion-proof Design, wherein the first water pump 8 uses protected against explosion variable frequency pump.
Interlayer plate heat exchanger of the invention uses stainless steel entirety laser welding, interlayer plate heat exchanger and extension tube,
Interlayer plate heat exchanger and collapsible tube are all made of integral solder, prevent natural gas leaking.
In use, the high temperature and humidity gas come out first from shale enters air inlet pipe 1 to the present invention, then passes through
Expander 2, flow velocity enters sandwich plate piece heat exchanger 3 after quickly reducing, using deceleration dehumidification mode；Interlayer plate changes at this time
Hot device outer loop low temperature chilled water, caloic is carried out by the natural gas of low temperature chilled water and high temperature and humidity and is exchanged, day is reduced
Right temperature degree, reduces the water capacity of natural gas, using the mode of chilled water cool-down dehumidification.Interlayer plate heat exchanger 3 simultaneously
Surface be laid with radiation coating, using external radiation cooling dehumidifying by the way of.The condensed water generated in interlayer plate heat exchanger 3
Separation water then flows into drain valve 6 by the honeycomb water absorber at internal vent with slowing down, and flows under gravity following
Water storage box 7, using absorption gravity dehumidifying by the way of.Natural gas after cooling water removal is accelerated by constrictor 4, then by going out
Tracheae 5 is discharged, into natural gas transportation and stocking system；The chilled water of low temperature is flowed under gravity by drip tray 9
Interlayer plate heat exchanger 3, in heat transfer process chilled water absorb natural gas in heat, water temperature increase, under the effect of gravity into
Enter the cooling of water storage box 7, the chilled water in water storage box 7 is squeezed into drip tray 9 by the first water pump 8, is recycled.In addition after heating up
Chilled water is entered in protected against explosion cooling by wind 10 by the second water pump 11, after water temperature drop, flows back to water storage box 7.
Claims (7)
1. a kind of water removal cooling device for shale gas, characterized by comprising: for reducing shale gas temperature, removal shale
The shale gas water scavenging system of air water point；It is connect with shale gas water scavenging system, for reducing the freezing of shale gas water scavenging system temperature
Water circulation system；It is connect with freezing water circulation system, for reducing the chilled water cooling system of freezing water circulation system temperature；Rock
Gas water scavenging system includes air inlet pipe (1), escape pipe (5), and the outlet side of air inlet pipe (1) passes through expander (2) and heat exchanger (3)
The other end of one end connection, heat exchanger (3) is connect by constrictor (4) with the inlet end of escape pipe (5)；Heat exchanger is set on (3)
Set drain valve (6)；Freezing water circulation system includes drip tray (9) above the shale gas water scavenging system, removes positioned at shale gas
Several through-holes are arranged in water storage box (7) below water system, the bottom of drip tray (9)；Drip tray (9) passes through the first water pump (8)
It is connect with water storage box (7)；First water pump (8) is protected against explosion variable frequency pump；Chilled water cooling system includes water cooler (10), cold
Two water pipes are set between water dispenser group (10) and water storage box (7), wherein arranging the first water pump (11) on a water pipe；Water cooler
It (10) is explosion-proof cooling by wind.
2. the water removal cooling device according to claim 1 for shale gas, it is characterised in that above-mentioned heat exchanger (3) is folder
Laminate piece heat exchanger.
3. the water removal cooling device according to claim 1 for shale gas, it is characterised in that above-mentioned interlayer plate heat exchange
Device includes the cuboid clamping plate (31) of several parallel arrangements, and setting is between two neighboring clamping plate (31) convenient in drip tray (9)
Chilled water flowing channel (32).
4. the water removal cooling device according to claim 1 for shale gas, it is characterised in that outside above-mentioned heat exchanger (3)
Portion is laid with nano ceramic coat.
5. the water removal cooling device according to claim 1 for shale gas, it is characterised in that above-mentioned heat exchanger (3) is internal
Honeycomb water absorber is arranged in exit, and the honeycomb water absorber is corresponding with drain valve (6).
6. the implementation method based on the water removal cooling device described in claim 1 for shale gas, it is characterised in that including such as
Lower step:
Step 1: shale gas water scavenging system works: after freezing water circulation system starting 1min, carrying out cooling to shale gas and remove
Water, the temperature and water capacity of monitoring outlet shale gas；When outlet temperature and water capacity are lower than setting value, chilled water circulation is reduced
System frequency is to reduce chilled water internal circulating load；
Step 2: chilled water cooling system works: when freezing water circulation system temperature lower than 10 DEG C of set temperature, carrying out off-load
Until closing；When freezing water circulation system temperature higher than 13 DEG C of set temperature, loaded until fully loaded；
Step 3: freezing water circulation system work: when freezing water circulation system temperature lower than 13 DEG C of set temperature, to shale gas
Water scavenging system supplements chilled water, and further cool down to shale gas water removal.
7. the implementation method of the water removal cooling device according to claim 6 for shale gas, it is characterised in that including such as
Lower step:
Step 1: shale gas water scavenging system works: after the first water pump opens 1min, opening air inlet, shale gas is from air inlet pipe
Into carrying out cooling water removal, the temperature and water capacity of monitoring outlet shale gas；When outlet temperature and water capacity are lower than setting value
When, the first water pump frequency is reduced to reduce chilled water internal circulating load；
Step 2: chilled water cooling system works: being first turned on the second water pump, open water cooler after 1min, when water storage box temperature
When degree is lower than 10 DEG C of set temperature, off-load is carried out until closing the unit, when water storage box temperature is higher than setting temperature to water cooler
When spending 13 DEG C, water cooler is opened until the unit is loaded until fully loaded；
Step 3: freezing water circulation system work: when freezing water circulation system temperature lower than 13 DEG C of set temperature, to shale gas
Water scavenging system supplements chilled water, and further cool down to shale gas water removal；
When water storage box temperature is lower than 13 DEG C of set temperature, the first water pump is opened, chilled water flows into interlayer plate by drip tray
Heat exchanger, further cool down to shale gas water removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811473239.5A CN109609224A (en) | 2018-12-04 | 2018-12-04 | Water removal cooling device and its implementation for shale gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811473239.5A CN109609224A (en) | 2018-12-04 | 2018-12-04 | Water removal cooling device and its implementation for shale gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109609224A true CN109609224A (en) | 2019-04-12 |
Family
ID=66005890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811473239.5A Pending CN109609224A (en) | 2018-12-04 | 2018-12-04 | Water removal cooling device and its implementation for shale gas |
Country Status (1)
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| CN (1) | CN109609224A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102844639A (en) * | 2009-10-27 | 2012-12-26 | 国际壳牌研究有限公司 | Apparatus and method for cooling and liquefying fluid |
| CN103074135A (en) * | 2012-12-27 | 2013-05-01 | 南京碳环生物质能源有限公司 | Low-concentration methane gas dewatering method and complete equipment |
| CN103123187A (en) * | 2011-11-18 | 2013-05-29 | 浙江万亨机械制造有限公司 | Evaporative cooling device |
| CN203247240U (en) * | 2013-04-10 | 2013-10-23 | 山西晋城煤业集团勘察设计院有限公司 | Gas cooling dehydration system |
| WO2015162344A1 (en) * | 2014-04-23 | 2015-10-29 | Dominique Deguitre | Means for liquid/gas, particularly water/air, heat exchange and system for producing water from moisture in the air including such means |
| CN205014859U (en) * | 2015-09-18 | 2016-02-03 | 浙江万享科技股份有限公司 | Hydrologic cycle evaporative condenser |
| CN105987622A (en) * | 2015-01-28 | 2016-10-05 | 广州市华德工业有限公司 | Plate-pipe composite heat-exchange-type evaporative condenser |
| CN206521440U (en) * | 2017-01-12 | 2017-09-26 | 中国环境科学研究院 | A kind of gas and water separator |
-
2018
- 2018-12-04 CN CN201811473239.5A patent/CN109609224A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102844639A (en) * | 2009-10-27 | 2012-12-26 | 国际壳牌研究有限公司 | Apparatus and method for cooling and liquefying fluid |
| CN103123187A (en) * | 2011-11-18 | 2013-05-29 | 浙江万亨机械制造有限公司 | Evaporative cooling device |
| CN103074135A (en) * | 2012-12-27 | 2013-05-01 | 南京碳环生物质能源有限公司 | Low-concentration methane gas dewatering method and complete equipment |
| CN203247240U (en) * | 2013-04-10 | 2013-10-23 | 山西晋城煤业集团勘察设计院有限公司 | Gas cooling dehydration system |
| WO2015162344A1 (en) * | 2014-04-23 | 2015-10-29 | Dominique Deguitre | Means for liquid/gas, particularly water/air, heat exchange and system for producing water from moisture in the air including such means |
| CN105987622A (en) * | 2015-01-28 | 2016-10-05 | 广州市华德工业有限公司 | Plate-pipe composite heat-exchange-type evaporative condenser |
| CN205014859U (en) * | 2015-09-18 | 2016-02-03 | 浙江万享科技股份有限公司 | Hydrologic cycle evaporative condenser |
| CN206521440U (en) * | 2017-01-12 | 2017-09-26 | 中国环境科学研究院 | A kind of gas and water separator |
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