CA2882509C - Cooling methanol vapour chamber for fuel gas - Google Patents
Cooling methanol vapour chamber for fuel gas Download PDFInfo
- Publication number
- CA2882509C CA2882509C CA2882509A CA2882509A CA2882509C CA 2882509 C CA2882509 C CA 2882509C CA 2882509 A CA2882509 A CA 2882509A CA 2882509 A CA2882509 A CA 2882509A CA 2882509 C CA2882509 C CA 2882509C
- Authority
- CA
- Canada
- Prior art keywords
- fuel gas
- housing body
- cooling chamber
- methanol bath
- chamber
- 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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Links
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 239000002737 fuel gas Substances 0.000 title claims abstract description 82
- 238000001816 cooling Methods 0.000 title claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000007710 freezing Methods 0.000 description 6
- 230000008014 freezing Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000004677 hydrates Chemical class 0.000 description 2
- 206010035148 Plague Diseases 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/06—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/202—Alcohols or their derivatives
- B01D2252/2021—Methanol
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
A fuel gas cooling chamber includes a housing body and a fuel gas inlet is provided on the housing body.
The fuel gas inlet couples to a fuel gas source, and a downspout is coupled to the fuel gas inlet. The downspout directs fuel gas received from the fuel gas source via the fuel gas inlet into a methanol bath contained within the housing body. A fuel gas outlet on the housing body above a maximum level of the methanol bath allows gas vapours that come from the methanol bath to vent out of the housing body.
The fuel gas inlet couples to a fuel gas source, and a downspout is coupled to the fuel gas inlet. The downspout directs fuel gas received from the fuel gas source via the fuel gas inlet into a methanol bath contained within the housing body. A fuel gas outlet on the housing body above a maximum level of the methanol bath allows gas vapours that come from the methanol bath to vent out of the housing body.
Description
Patent COOLING METHANOL VAPOUR CHAMBER FOR FUEL GAS
BACKGROUND OF THE INVENTION
The invention pertains generally to improving fuel gas quality in the oil and gas industry, primarily in the colder climates.
Fuel gas freezing up, and or hydrates in the fuel gas systems continues to be an ongoing problem within the oil and gas industry and plagues companies with the high costs involved to repair/unthaw lines once frozen, and the lost production revenues while the site is down.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be described in greater detail with reference to the accompanying drawings:
FIG. 1 illustrates a cross section of a cooling methanol vapour (CMV) chamber according to an exemplary embodiment;
FIG. 2 illustrates a first side view of the CMV chamber of FIG. 1; and FIG. 3 illustrates a second side view of the CMV chamber of FIG. 1.
DETAILED DESCRIPTION
We have spent several years developing the cooling methanol vapour (CMV) chamber and starting testing three years ago on a location where the product tank heaters would not stay operational, due to fuel gas lines freezing. The site we tested the CMV chamber on could not keep the tank heaters going for 24 hrs without freezing off, even though the fuel gas was run through gas scrubbers, and coalescent filtration.
After installing the CMV chamber, the heaters remained operational through the next 4 months, problem free. We removed the CMV chamber during the summer months, to protect the concept from being reviewed by other workers. The test location was operated by us and therefore we were able to ensure the unit was not viewed by other workers.
As we saw an immediate success with the CMV chamber we decided to further test the unit, and re-installed a revised (larger) CMV chamber on the same location the following winter. The difference this time was we ran all heat trace systems, tank heaters, and a pumpjack from the CMV chamber. This site was very prone to fuel gas freezing off to the driver, due to the long fuel gas line that ran to the pumpjack.
The pumpjack was located at a remote site, which is the reason for the long fuel gas line.
Historical data from the well proved that there was a high average of downtime during the winter months, Patent all from fuel gas freezing issues. Steamer bills were in excess of $4000 per month, plus man power for overtime, and an average loss of production of 10m3 of oil per month for an average of 5 months per year. The loss production with an average of $60 netback per bbl, was $3600 per month, or $18,000 annual revenue loss.
We installed the CMV chamber at the beginning of December, and left the gas flowing through the CMV
chamber for the duration of that winter. We had a 100% runtime, and not once did the site go down as a result of fuel gas issues. We modified the unit further and ran it the following winter as well with the same excellent results, however the modifications reduced the amount of maintenance on the unit, and made it easier, more user friendly for the well operators. The CMV chamber has been removed from the location to protect the integrity of the invention and to ensure it was not going to be viewed by others.
Other than the inventor/co-inventor, there was only one site operator that was involved in the testing, and he agreed to and signed a confidentiality agreement. It was important to include him in the testing of the unit so we could get an unbiased opinion of the CMV chamber.
How it Works:
CMV stands for: Cooling, Methanol Vapour chamber.
FIG. 1, FIG. 2, and FIG.3 are schematics that show the CMV chamber 100 in detail. The gas comes into the CMV chamber 100 downstream of an existing fuel gas scrubber. The CMV
chamber 100 gets mounted outside of the building wall 102, which helps in the cooling of the gas. The concept of this is to pre-cool the gas so there is not such a drastic temperature drop from the fuel gas scrubber to the item the gas is operating. One of the leading causes of hydrates is pressure and temperature changes. By pre-cooling the fuel gas helps reduce the chances of freezing. The gas goes into the CMV chamber 100 and is re-directed directly into the methanol 104 in the CMV chamber 100, there is a downspout 106 that directs the gas into the methanol 104. The methanol 104 helps strip further impurities ("wetness") from the gas that may have resulted from the cooling process. The methanol gas vapours 108 that come from the methanol bath 104, now can vent out the top 110 of the CMV chamber 100 and the result is a much cleaner, drier, gas.
The CMV chamber 100 includes a housing body 112 with a fuel gas inlet 114 on the housing body 112.
The fuel gas inlet 114 is coupled to a gas source 116. A downspout 106 is coupled to the fuel gas inlet 114, and the downspout 106 directs gas received from the gas source 116 via the fuel gas inlet 114 into a methanol bath 104 contained within the housing body 112. A fuel gas outlet 110 is provided on the
BACKGROUND OF THE INVENTION
The invention pertains generally to improving fuel gas quality in the oil and gas industry, primarily in the colder climates.
Fuel gas freezing up, and or hydrates in the fuel gas systems continues to be an ongoing problem within the oil and gas industry and plagues companies with the high costs involved to repair/unthaw lines once frozen, and the lost production revenues while the site is down.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be described in greater detail with reference to the accompanying drawings:
FIG. 1 illustrates a cross section of a cooling methanol vapour (CMV) chamber according to an exemplary embodiment;
FIG. 2 illustrates a first side view of the CMV chamber of FIG. 1; and FIG. 3 illustrates a second side view of the CMV chamber of FIG. 1.
DETAILED DESCRIPTION
We have spent several years developing the cooling methanol vapour (CMV) chamber and starting testing three years ago on a location where the product tank heaters would not stay operational, due to fuel gas lines freezing. The site we tested the CMV chamber on could not keep the tank heaters going for 24 hrs without freezing off, even though the fuel gas was run through gas scrubbers, and coalescent filtration.
After installing the CMV chamber, the heaters remained operational through the next 4 months, problem free. We removed the CMV chamber during the summer months, to protect the concept from being reviewed by other workers. The test location was operated by us and therefore we were able to ensure the unit was not viewed by other workers.
As we saw an immediate success with the CMV chamber we decided to further test the unit, and re-installed a revised (larger) CMV chamber on the same location the following winter. The difference this time was we ran all heat trace systems, tank heaters, and a pumpjack from the CMV chamber. This site was very prone to fuel gas freezing off to the driver, due to the long fuel gas line that ran to the pumpjack.
The pumpjack was located at a remote site, which is the reason for the long fuel gas line.
Historical data from the well proved that there was a high average of downtime during the winter months, Patent all from fuel gas freezing issues. Steamer bills were in excess of $4000 per month, plus man power for overtime, and an average loss of production of 10m3 of oil per month for an average of 5 months per year. The loss production with an average of $60 netback per bbl, was $3600 per month, or $18,000 annual revenue loss.
We installed the CMV chamber at the beginning of December, and left the gas flowing through the CMV
chamber for the duration of that winter. We had a 100% runtime, and not once did the site go down as a result of fuel gas issues. We modified the unit further and ran it the following winter as well with the same excellent results, however the modifications reduced the amount of maintenance on the unit, and made it easier, more user friendly for the well operators. The CMV chamber has been removed from the location to protect the integrity of the invention and to ensure it was not going to be viewed by others.
Other than the inventor/co-inventor, there was only one site operator that was involved in the testing, and he agreed to and signed a confidentiality agreement. It was important to include him in the testing of the unit so we could get an unbiased opinion of the CMV chamber.
How it Works:
CMV stands for: Cooling, Methanol Vapour chamber.
FIG. 1, FIG. 2, and FIG.3 are schematics that show the CMV chamber 100 in detail. The gas comes into the CMV chamber 100 downstream of an existing fuel gas scrubber. The CMV
chamber 100 gets mounted outside of the building wall 102, which helps in the cooling of the gas. The concept of this is to pre-cool the gas so there is not such a drastic temperature drop from the fuel gas scrubber to the item the gas is operating. One of the leading causes of hydrates is pressure and temperature changes. By pre-cooling the fuel gas helps reduce the chances of freezing. The gas goes into the CMV chamber 100 and is re-directed directly into the methanol 104 in the CMV chamber 100, there is a downspout 106 that directs the gas into the methanol 104. The methanol 104 helps strip further impurities ("wetness") from the gas that may have resulted from the cooling process. The methanol gas vapours 108 that come from the methanol bath 104, now can vent out the top 110 of the CMV chamber 100 and the result is a much cleaner, drier, gas.
The CMV chamber 100 includes a housing body 112 with a fuel gas inlet 114 on the housing body 112.
The fuel gas inlet 114 is coupled to a gas source 116. A downspout 106 is coupled to the fuel gas inlet 114, and the downspout 106 directs gas received from the gas source 116 via the fuel gas inlet 114 into a methanol bath 104 contained within the housing body 112. A fuel gas outlet 110 is provided on the
2 Patent housing body 112 above a maximum level 118 of the methanol bath 104, and the fuel gas outlet 110 allows gas vapours 108 that come from the methanol bath 104 to vent out of the housing body 112.
As shown in FIGs. 1-3, the housing body 112 is a vertically positioned cylinder, and the fuel gas outlet 110 is positioned on a top end of the vertically positioned cylinder. The CMV
chamber 100 further includes a fill port 121 and a drain 120 on the housing body 112 allowing the methanol bath 104 to enter and exit the housing body 112. Pipe connectors 122 on each of the fuel gas inlet 114 and the fuel gas outlet 110 allow connecting to one or more external pipes 124, and insulation is provided around the external pipes 124 adjacent the housing body 112.
A method of pre-cooling fuel gas includes providing a methanol bath 104 contained within a fuel gas cooling chamber 100. The method further includes receiving incoming fuel gas from a fuel gas source 116 at a fuel gas inlet 114 on the fuel gas chamber 100, and directing the incoming fuel gas into the methanol bath 104 within the fuel gas cooling chamber 100. The method further includes directing gas vapours 108 that come from the methanol bath 104 to vent out of the fuel gas cooling chamber 100 via a fuel gas outlet 110. The fuel gas cooling chamber 100 may be shaped as a cylinder, and the method further comprises vertically positioning the cylinder and positioning the fuel gas outlet 110 on a top end of the cylinder. The method may further include providing a fill port 121 and a drain 120 on a housing body 112 of the fuel gas cooling chamber 100 to allow the methanol bath 104 to enter and exit the fuel gas cooling chamber. The method may also include connecting one or more external pipes 124 to pipe connectors 122 on each of the fuel gas inlet 114 and the fuel gas outlet 110.
The method may also include installing insulation 126 around the external pipes 124 adjacent the housing body 112.
Patent Search There was an extensive several month search done reviewing thousands of registered patents. There appears to be nothing similar in comparison to the CMV chamber.
As shown in FIGs. 1-3, the housing body 112 is a vertically positioned cylinder, and the fuel gas outlet 110 is positioned on a top end of the vertically positioned cylinder. The CMV
chamber 100 further includes a fill port 121 and a drain 120 on the housing body 112 allowing the methanol bath 104 to enter and exit the housing body 112. Pipe connectors 122 on each of the fuel gas inlet 114 and the fuel gas outlet 110 allow connecting to one or more external pipes 124, and insulation is provided around the external pipes 124 adjacent the housing body 112.
A method of pre-cooling fuel gas includes providing a methanol bath 104 contained within a fuel gas cooling chamber 100. The method further includes receiving incoming fuel gas from a fuel gas source 116 at a fuel gas inlet 114 on the fuel gas chamber 100, and directing the incoming fuel gas into the methanol bath 104 within the fuel gas cooling chamber 100. The method further includes directing gas vapours 108 that come from the methanol bath 104 to vent out of the fuel gas cooling chamber 100 via a fuel gas outlet 110. The fuel gas cooling chamber 100 may be shaped as a cylinder, and the method further comprises vertically positioning the cylinder and positioning the fuel gas outlet 110 on a top end of the cylinder. The method may further include providing a fill port 121 and a drain 120 on a housing body 112 of the fuel gas cooling chamber 100 to allow the methanol bath 104 to enter and exit the fuel gas cooling chamber. The method may also include connecting one or more external pipes 124 to pipe connectors 122 on each of the fuel gas inlet 114 and the fuel gas outlet 110.
The method may also include installing insulation 126 around the external pipes 124 adjacent the housing body 112.
Patent Search There was an extensive several month search done reviewing thousands of registered patents. There appears to be nothing similar in comparison to the CMV chamber.
3 _____ Vxmir44.4.014.6.1Waft.s
Claims (10)
1. A fuel gas cooling chamber comprising:
a housing body;
a fuel gas inlet on the housing body, the fuel gas inlet coupling to a fuel gas source;
a downspout coupled to the fuel gas inlet, the downspout directing fuel gas received from the fuel gas source via the fuel gas inlet into a methanol bath contained within the housing body; and a fuel gas outlet on the housing body above a maximum level of the methanol bath, the fuel gas outlet allowing gas vapours that come from the methanol bath to vent out of the housing body.
a housing body;
a fuel gas inlet on the housing body, the fuel gas inlet coupling to a fuel gas source;
a downspout coupled to the fuel gas inlet, the downspout directing fuel gas received from the fuel gas source via the fuel gas inlet into a methanol bath contained within the housing body; and a fuel gas outlet on the housing body above a maximum level of the methanol bath, the fuel gas outlet allowing gas vapours that come from the methanol bath to vent out of the housing body.
2. The fuel gas cooling chamber of claim 1, wherein:
the housing body is a vertically positioned cylinder; and the fuel gas outlet is positioned on a top end of the vertically positioned cylinder.
the housing body is a vertically positioned cylinder; and the fuel gas outlet is positioned on a top end of the vertically positioned cylinder.
3. The fuel gas cooling chamber of any one of claims 1 to 2, further comprising a fill port and a drain on the housing body allowing the methanol bath to enter and exit the housing body.
4. The fuel gas cooling chamber of any one of claims 1 to 3, further comprising pipe connectors on each of the fuel gas inlet and the fuel gas outlet for connecting to one or more external pipes.
5. The fuel gas cooling chamber of claim 4, further comprising insulation around the external pipes adjacent the housing body.
6. A method of pre-cooling fuel gas, the method comprising:
providing a methanol bath contained within a fuel gas cooling chamber;
receiving incoming fuel gas from a fuel gas source at a fuel gas inlet on the fuel gas chamber;
directing the incoming fuel gas into the methanol bath within the fuel gas cooling chamber; and directing gas vapours that come from the methanol bath to vent out of the fuel gas cooling chamber via a fuel gas outlet.
providing a methanol bath contained within a fuel gas cooling chamber;
receiving incoming fuel gas from a fuel gas source at a fuel gas inlet on the fuel gas chamber;
directing the incoming fuel gas into the methanol bath within the fuel gas cooling chamber; and directing gas vapours that come from the methanol bath to vent out of the fuel gas cooling chamber via a fuel gas outlet.
7. The method of claim 6, wherein the fuel gas cooling chamber is shaped as a cylinder, and the method further comprises:
vertically positioning the cylinder; and positioning the fuel gas outlet on a top end of the cylinder.
vertically positioning the cylinder; and positioning the fuel gas outlet on a top end of the cylinder.
8. The method of any one of claims 6 to 7, further comprising providing a fill port and a drain on a housing body of the fuel gas cooling chamber to allow the methanol bath to enter and exit the fuel gas cooling chamber.
9. The method of any one of claims 6 to 8, further comprising connecting one or more external pipes to pipe connectors on each of the fuel gas inlet and the fuel gas outlet.
10. The method of claim 9, further comprising installing insulation around the external pipes adjacent the housing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2882509A CA2882509C (en) | 2015-02-23 | 2015-02-23 | Cooling methanol vapour chamber for fuel gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2882509A CA2882509C (en) | 2015-02-23 | 2015-02-23 | Cooling methanol vapour chamber for fuel gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2882509A1 CA2882509A1 (en) | 2016-08-23 |
| CA2882509C true CA2882509C (en) | 2017-07-25 |
Family
ID=56741243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2882509A Active CA2882509C (en) | 2015-02-23 | 2015-02-23 | Cooling methanol vapour chamber for fuel gas |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2882509C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10603628B2 (en) | 2017-02-02 | 2020-03-31 | Krude Innovations Ltd | Cooling methanol vapour chamber for fuel gas |
-
2015
- 2015-02-23 CA CA2882509A patent/CA2882509C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10603628B2 (en) | 2017-02-02 | 2020-03-31 | Krude Innovations Ltd | Cooling methanol vapour chamber for fuel gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2882509A1 (en) | 2016-08-23 |
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