Cost of Environmental Technologies
Cost of Environmental Technologies
Objective |
Investment Item |
Investment Amount (thousand Yen) |
Environmental Benefit |
|
|---|---|---|---|---|
Capital Investment |
Operating Expense |
|||
Global warming prevention (includes cost of energy conservation measures) |
Ichthys Onshore: |
135,000 |
|
Cost of preventative/corrective maintenance at T1 and T2 Acid Gas Removal areas for the year. |
Ichthys Offshore: |
525,000 |
|
Ongoing commissioning activities on the Flash Gas Recovery and Off Gas Recovery systems on the CPF & FPSO, to reduce flaring/greenhouse gas emissions. |
|
US Shale Oil: |
4,538 |
|
Reduction of vent |
|
US Shale Oil: |
|
2,681 |
Prevention of methane leakage |
|
Chiba: |
57,900 |
|
power saving |
|
Akita: |
28,700 |
|
Prevention of methane leakage |
|
Sub-total |
751,138 |
2,681 |
|
|
Conservation of air quality |
Ichthys Onshore: |
|
11,250 |
Stack emission monitoring |
Nagaoka Oyazawa Plant: |
49,943 |
|
Maintaining absorbents performance |
|
Nagaoka Koshijihara Plant: |
43,100 |
|
Maintaining VOC removal performance |
|
Nagaoka Koshijihara Plant: |
6,313 |
|
Removal of impurities |
|
Minamiaga Ozeki Plant: |
|
9,600 |
Prevention of air pollution |
|
Sub-total |
99,356 |
20,850 |
|
|
Conservation of soil and groundwater environment |
US Shale Oil: |
138,189 |
|
Prevention of contamination |
Minamiaga Shin-Kuwayama Plant: |
|
760 |
To prevent deterioration, implemented the deferred maintenance of drainage ditch including re-constructing of the earthwork and the replacement of the earthwork sheet curing. (2nd year of 2-year work plan) |
|
Minamiaga Ozeki Plant: |
|
1,220 |
To prevent deterioration, implemented the deferred maintenance of drainage ditch including re-constructing of the earthwork and the replacement of the earthwork sheet curing. (1st year of 3-year work plan) |
|
Chiba: |
13,000 |
|
Prevention of water leakage |
|
Chiba: |
|
30,900 |
Prevention of water leakage |
|
Chiba: |
|
25,100 |
Prevention of water leakage |
|
Akita Sotoasahikawa Plant: |
330 |
|
Prevention of accident |
|
Nagaoka Oyazawa Plant: |
4,900 |
|
Reduce of water use |
|
Sub-total |
156,419 |
57,980 |
|
|
Conservation of water quality |
Ichthys Onshore: |
|
32,250 |
Preventative/corrective maintenance at the Hazardous Drains, Service & Drinking Water and Drain & Effluent Treatment areas of the plant |
Ichthys Onshore: |
|
15,000 |
Costs associated with engaging a specialist contractor to maintain and operate the sewage treatment plant |
|
Ichthys Offshore: |
|
11,700 |
Ongoing commissioning activities, including oily water analyser commissioning, maintenance and other consultancy services manage oily water discharges to meet licence limits. |
|
Sub-total |
0 |
58,950 |
|
|
Waste Management |
Ichthys Onshore: |
|
187,500 |
Cost of routine site waste disposal including amine disposal |
Ichthys Offshore: |
|
165,000 |
All offshore (CPF/FPSO) waste recycling and disposal costs. |
|
Sub-total |
0 |
352,500 |
|
|
Project Management |
Ichthys Onshore: |
|
1,125 |
costs associated with the annual renewal of the environmental licence |
Ichthy Onshore: |
|
3,750 |
Costs associated with the annual statutory environmental audit |
|
Ichthys Offshore: |
|
26,100 |
Costs for consultants/Specialists modelling etc for preparation of Environment Plans and Oil Pollution Emergency Plans, and NOPSEMA regulatory assessment and compliance fees |
|
Ichthys Offshore: |
|
32,250 |
Spill response support, equipment maintenance, technology subscriptions and other spill preparedness/response service provider costs |
|
Sub-total |
0 |
63,225 |
|
|
Onshore monitoring environmental impact / Conservation of soil and groundwater environment |
Ichthys Onshore |
|
5,839 |
Determine whether unplanned discharges from the ILNG have resulted in a detectable environmental impact to groundwater (onshore) |
Ichthys Onshore |
|
4,089 |
Determine the presence/absence of invasive weed species (onshore) |
|
Ichthys Onshore |
|
1,788 |
Determine the rehabilitation of the GEP Corridor (onshore) |
|
Ichthys Onshore |
|
5,717 |
Determine whether unplanned discharges from the ILNG have resulted in a detectable environmental impact to mangrove health, intertidal sediments and bio-indicators (onshore) |
|
Ichthys Onshore |
|
2,755 |
Determine if there are measurable impacts to the receiving environment from routine wastewater discharges to Darwin Harbour (onshore) |
|
Nagaoka: |
27,600 |
|
Boron monitoring on effluent water |
|
Nagaoka Koshijihara Plant: |
71,300 |
|
Prevention of spill of effluent |
|
Nagaoka Oyazawa Plant: |
23,000 |
|
Prevention of spill of effluent |
|
Ichthys Onshore: |
|
6,771 |
Determine if there are measurable impacts to the receiving environment from routine wastewater discharges to Darwin Harbour (onshore) |
|
Ichthys Onshore: |
|
2,073 |
To determine the ecotoxicity of liquid waste streams from the ILNG into Darwin Harbour (onshore) |
|
Sub-total |
121,900 |
29,031 |
|
|
Offshore monitoring environmental impact |
Ichthys Offshore: |
|
4,756 |
Compliance monitoring for Offshore Facilities EP + Liquid Effluent Management Plan |
Ichthys Offshore: |
|
9,045 |
Compliance monitoring for Offshore Facilities EP + Liquid Effluent Management Plan |
|
Ichthys Offshore: |
|
1,875 |
Compliance requirement to demonstrate OSMP preparedness to NOPSEMA in accordance with relevant EPs (Offshore, GEP, Drilling, Exploration, Sesmic, Nearshore etc). |
|
Ichthys Offshore |
|
9,689 |
To determine the ecotoxicity of Ichthys condensate from Browse Basin and appropriate oil spill modelling thresholds |
|
Sub-total |
0 |
25,365 |
|
|
Monitoring environmental impact / Biodiversity conservation |
Ichthys Onshore (Biodiversity) |
|
40,886 |
NTG-run offset program for Integrated Marine Monitoring Research Program (IMMRP) of Darwin Harbour (onshore) |
Ichthys Onshore (Biodiversity) |
|
2,886 |
Establishing land and sea area(s) to permanently protect 2000ha of terrestrial vegetation and additional marine habitat for target species |
|
Ichthys Onshore (Biodiversity) |
|
547 |
Determine the presence/absence of invasive marine pest species on high-risk offshore marine assets (offshore) |
|
Sub-total |
0 |
44,320 |
|
|
CAPEX/OPEX total |
1,128,814 |
654,902 |
|
|
Invested amount total |
1,783,715 |
|
||
Environmental Investments in FY2019
Objective |
Investment Item |
Investment Amount (Thousand Yen) |
Environmental Benefit |
|
|---|---|---|---|---|
Capital Investment |
Operating Expense |
|||
Global warming prevention (includes cost of energy conservation measures) |
Ichthys Onshore |
|
101,129 |
Cost of preventative/corrective maintenance at T1 and T2 Acid Gas Removal areas for the year. |
Ichthys Onshore |
|
4,869 |
Costs associated with the band-lock replacements on the amine system to prevent leaks |
|
Ichthys Offshore |
674,190 |
|
Ongoing commissioning activities on the Flash Gas Recovery and Off Gas Recovery systems on the CPF & FPSO, to reduce flaring/greenhouse gas emissions. |
|
Sub-total |
674,190 |
105,998 |
|
|
Conservation of air quality |
Oyazawa Plant — Replaced exhaust adsorbents |
|
16,791 |
Replaced exhaust gas impurity adsorbents due to adsorbent performance degradation |
Koshijihara Plant Train C — Replaced catalytic agents |
|
40,355 |
Replaced catalytic agents of catalytic incinerators for control of VOCs due to catalytic performance degradation |
|
Koshijihara Plant Train A/B — Replaced exhaust adsorbents |
|
29,709 |
Replaced exhaust gas impurity adsorbents due to adsorbent performance degradation |
|
Ichthys Onshore |
|
8,427 |
Stack emission monitoring |
|
Ichthys Onshore |
|
32,211 |
Cost of preventative/corrective maintenance at the flare systems |
|
Sub-total |
0 |
127,494 |
|
|
Conservation of soil and groundwater environment |
Minami-aga Shin—Kuwayama plant — |
760 |
|
To prevent deterioration, implemented the deferred maintenance of drainage ditch including re-constructing of the earthwork and the replacement of the earthwork sheet curing. (1st year of 2-year work plan) |
Minami-aga Ozeki plant — |
1,220 |
|
To prevent deterioration, implemented the deferred maintenance of drainage ditch including re-constructing of the earthwork and the replacement of the earthwork sheet curing. (1st year of 3-year work plan) |
|
Chiba KA well pad — Deferred maintenance of production separator |
15,000 |
|
To prevent deterioration, implemented the deferred maintenance of the production separator made of cement including repairing the structure and re-painting the internal coating |
|
Chiba — Drainage water pipeline inspection |
|
589,000 |
To reduce the risk of pollution from leaks, implemented pipe body survey of all drainage water pipeline. |
|
Chiba — Bypass pipeline work of water plant |
13,800 |
|
To reduce the risk of operation shutdown due to leaks, implemented bypass water pipeline work at water plant. |
|
Akita well pads — Install flowline from SR-123, KR-82 and KR-83 well pads to Sotoasahikawa Plant |
9,500 |
|
As a result of the well integrity study, it was determined that high pressure facilities were required for the SR-123, KR-82 and KR-83 wells, and the pipes were replaced to high pressure pipes. |
|
Akita Sotoasahikawa plant — Re-painting and replacement pipes/valves |
7,900 |
|
To reduce the risk of pollution from leaks, re-painted and replaced the severely corroded pipes/valves to new ones |
|
Akita Sotoasahikawa plant — Repair and replace the wash tank body/pipes |
|
17,030 |
As a result of the well integrity study of wash tank, repaired and replaced the corroded tank body/pipes |
|
Akita Yabase plant — Re-painting and replacement pipes/valves |
10,000 |
|
To reduce the risk of pollution from leaks, re-painted and replaced the severely corroded pipes/valves to new ones |
|
Akita Sotoasahikawa plant — Replacement of water injection pump discharge piping |
3,200 |
|
To reduce the risk of operation shutdown due to pump leaks and malfunctions and to reduce the risk of pollution from leaks, replaced the severely corroded/damaged pipes |
|
Akita — Install gas sales pipe from Sotoasahikawa Plant to the sales gas pipe line |
15,650 |
|
To reduce the risk of pollution from leaks, replaced the severely corroded pipes to new pipes as a result of the investigation. |
|
Sub-total |
77,030 |
606,030 |
|
|
Conservation of water quality |
Ichthys Onshore |
|
11,237 |
Costs associated with engaging a specialist contractor to maintain and operate the sewage treatment plant |
Ichthys Onshore |
|
24,158 |
Cost of preventative/corrective maintenance at the Hazardous Drains, Service & Drinking Water and Drain & Effluent Treatment areas of the plant for the year |
|
Ichthys Offshore |
|
9,738 |
Ongoing commissioning activities, including oily water analyser commissioning, maintenance and other consultancy services manage oily water discharges to meet licence limits. |
|
Sub-total |
0 |
45,133 |
|
|
Disposal of industrial waste |
Ichthys Onshore |
|
97,383 |
Cost of routine site waste disposal plus amine disposal |
Ichthys Offshore |
|
202,257 |
All offshore (CPF/FPSO) waste recycling and disposal costs. |
|
Sub-total |
0 |
299,640 |
|
|
Administration Cost |
Ichthys Onshore |
|
1,124 |
Costs associated with the annual renewal of the environmental licence |
Ichthys Onshore |
|
3,746 |
Costs associated with the annual statutory environmental audit |
|
Ichthys Offshore |
|
24,720 |
Costs for consultants/Specialists modelling etc for preparation of Environment Plans and Oil Pollution Emergency Plans, and NOPSEMA regulatory assessment and compliance fees |
|
Ichthys Offshore |
|
32,211 |
Spill response support, equipment maintenance, technology subscriptions and other spill preparedness/response service provider costs |
|
Sub-total |
0 |
61,801 |
|
|
Onshore monitoring environmental impact / Conservation of soil and groundwater environment |
Ichthys Onshore |
|
5,282 |
Determine whether unplanned discharges from the ILNG have resulted in a detectable environmental impact to groundwater (onshore) |
Ichthys Onshore |
|
3,468 |
Determine the presence/absence of invasive weed species (onshore) |
|
Ichthys Onshore |
|
1,599 |
Determine the rehabilitation of the GEP Corridor (onshore) |
|
Ichthys Onshore |
|
2,480 |
Determine whether unplanned discharges from the ILNG have resulted in a detectable environmental impact to mangrove health, intertidal sediments and bio-indicators (onshore) |
|
Ichthys Onshore |
|
3,725 |
Determine if there are measurable impacts to the receiving environment from routine wastewater discharges to Darwin Harbour (onshore) |
|
Onshore monitoring environmental impact / Conservation of water quality |
Ichthys Onshore |
|
4,307 |
Determine if there are measurable impacts to the receiving environment from routine wastewater discharges to Darwin Harbour (onshore) |
|
Sub-total |
0 |
20,862 |
|
Offshore monitoring environmental impact / Conservation of water quality |
Ichthys Offshore |
|
42,834 |
Determine whether PFW discharges from Offshore facilities have resulted in a detectable environmental impact (offshore) |
Ichthys Offshore |
|
5,731 |
To characterise the chemical composition of liquid waste streams from the Offshore Facilities (CPF + FPSO) (offshore) |
|
Ichthys Offshore |
|
14,190 |
To determine the ecotoxicity of liquid waste streams from the Offshore Facilities (CPF + FPSO) (offshore) |
|
Offshore monitoring environmental impact |
Ichthys Offshore |
|
866 |
Readiness to respond to major hydrocarbon spills |
Ichthys Offshore |
|
5,711 |
To determine composition of drill cuttings and assess environmental impacts |
|
Ichthys Offshore |
|
3,913 |
To determine the ecotoxicity of Ichthysthys condensate from Browse Basin and appropriate oil spill modelling thresholds |
|
|
Sub-total |
0 |
73,245 |
|
Monitoring environmental impact / Biodiversity conservation |
Ichthys Onshore (Biodiversity) |
|
60,782 |
NTG-run offset program for Integrated Marine Monitoring Research Program (IMMRP) of Darwin Harbour (onshore) |
Ichthys Onshore (Biodiversity) |
|
47,290 |
Long-term monitoring of coastal dolphins in Darwin Harbour and the abundance and distribution of dugongs in the Northern Territory (Program 6) (onshore) |
|
Ichthys Onshore (Biodiversity) |
|
692 |
Determine the presence/absence of invasive marine pest species on high-risk offshore marine assets (offshore) |
|
Sub-total |
0 |
108,764 |
|
|
Investment amount total |
751,220 |
1,448,966 |
|
|
Total |
2,200,186 |
|
||
Environmental Investments in FY2018
Objective |
Investment Item |
Investment Amount (thousand Yen) |
Environmental Benefit |
Quantitative Evaluation of Investment Effect or Reduction of Environmental Impact (Physical Units) |
|
|---|---|---|---|---|---|
Capital Investment |
Operating Expense |
||||
Global warming prevention (includes cost of energy conservation measures) |
Chiba Field Production Well — Changed submersible motor pump model |
29,366 |
- |
Contributed to reduction of power consumption by changing to a high-efficiency, long-life ESPs according to well production capacity |
Improvement in power consumed per pump discharge volume — |
Naoetsu LNG Terminal — Constructed a switching connection from the venting stack to the flaring stack |
230,970 |
- |
Contributed to reduction of methane gas and other gases emissions by switching from the vent system to the flare system. |
Construction finished at end of 2018. Zero vent gas since then. |
|
Koshijihara Power plant — Changed operation mode for the air-compressor |
- |
- |
Contributed to reduction of power consumption by switching to energy saving mode |
Reduction annual power consumption by 146,000 kWh |
|
Sub-total |
260,336 |
0 |
|
|
|
Conservation of air quality |
Oyazawa Plant - Replaced exhaust adsorbents |
- |
30,561 |
Replaced exhaust gas impurity adsorbents due to adsorbent performance degradation |
Not quantifiable |
Koshijihara Plant Train A/B — Replaced exhaust adsorbents |
- |
42,710 |
Replaced exhaust gas impurity adsorbents due to adsorbent performance degradation |
Not quantifiable |
|
Koshijihara Plant Train C — Replaced exhaust adsorbents |
- |
29,310 |
Replaced exhaust gas impurity adsorbents due to adsorbent performance degradation |
Not quantifiable |
|
Ozeki Plant - Carried out overhaul and rebuilt of gas engine |
- |
9,600 |
Contributed to keep exhaust gas clean to comply with all the regulations. |
Not quantifiable |
|
Sub-total |
0 |
112,181 |
|
|
|
Conservation of |
Yabase Plant — Carried out integrity evaluation of buried piping at river bridge section |
- |
12,000 |
Performed an external corrosion survey to ensure integrity of pipe |
Not quantifiable |
Sotoasahikawa Plant — Install gas sales pipe from Sotoasahikawa Plant to the sales gas pipe line |
16,600 |
- |
Contributed to maintain gas sales pipe by switching to new pipe in oder to preevent pipe corrosion. |
Not quantifiable |
|
Omonogawa Plant — Install drain water pipe from Omonogawa Plant to the injection well |
6,500 |
- |
Contributed to maintain water injection capacity by switching to new injection pipe line. |
Not quantifiable |
|
Sub-total |
23,100 |
12,000 |
|
|
|
Conservation of water quality |
Technical Research Center — Carried out regular periodic inspection of waste water treatment unit |
- |
254 |
Performed an external corrosion survey to ensure integrity of pipe |
Not quantifiable |
Sub-total |
0 |
254 |
|
|
|
Investment amount total |
283,436 |
124,435 |
|
|
|
Total |
407,871 |
|
|
||
Environmental Investments in FY2017
Objective |
Investment Item |
Investment Amount (thousand Yen) |
Environmental Benefit |
Quantitative Evaluation of Investment Effect or Reduction of Environmental Impact (Physical Units) |
|
|---|---|---|---|---|---|
Capital Investment |
Operating Expense |
||||
Global warming prevention (includes cost of energy conservation measures) |
Koshijihara Power plant — Cleaned gas turbine compressors |
- |
304 |
Performed regular (monthly) cleaning, since output increases after cleaning |
Gas turbine output increased by approx. 1,200 kW compared to before cleaning Reduction effect: 31.2 kL / month / 374 kL / year (crude oil equivalent) |
Chiba Field Production Well — Changed submersible motor pump model |
144,324 |
- |
Contributed to reduction of power consumption by changing to a high-efficiency, long-life ESPs according to well production capacity |
Improvement in power consumed per pump discharge volume — |
|
Kashiwazaki Iron Plant — Introduced energy-saving facilities (lighting facilities) |
159 |
- |
Contributed to reduction of power consumption by switching to LED lighting |
75% reduction in power consumption compared with the previous year |
|
Naoetsu LNG Terminal — Constructed a switching connection from the venting stack to the flaring stack |
98,130 |
- |
Contributed to reduction of methane gas and other gases emissions by switching from the vent system to the flare system (in fiscal 2016, advance construction of a connection only) |
Not quantifiable |
|
Koshijihara Plant - Changed drain line from compressor tank |
14,660 |
- |
Contributed to reduction of methane gas and other gases emissions by switching from open drain system to closed drain system |
Reduction annual hydrocarbone emissions by 10.95 m3 |
|
Chiba No.1 Gas plant - Replaced from the gas driven glycol pump to electric pump |
6,500 |
- |
Contributed to reduction of power consumption by switching to a package type generator which generate |
Not quantifiable |
|
Technical Research Center - Carried out regular periodic inspection of outodoor unit of gas heat pump system |
- |
447 |
Contributed to reduction of methane gas and other gases emissions by switching from fuel gas to compressed air for start an engine |
Reduction annual hydrocarbone emissions by 500 m3 |
|
Koshijihara Power plant — Changed operation mode for the air-compressor |
- |
- |
Contributed to reduction of power consumption by switching to energy saving mode |
Reduction annual power consumption by 146,000 kWh |
|
Koshijihara Power plant — Adjusted gas turbine power output for low load operation |
- |
- |
Increased power generation amount by switching gas turbine power output from 5 MW to 9 MW |
Increased monthly power output by 800,000 kWh |
|
Sub-total |
263,773 |
751 |
|
|
|
Conservation of air quality |
Oyazawa Plant — Replaced exhaust adsorbents |
- |
15,185 |
Replaced exhaust gas impurity adsorbents due to adsorbent performance degradation |
Not quantifiable |
Koshijihara Plant — Replaced exhaust adsorbents |
- |
27,770 |
Replaced exhaust gas impurity adsorbents due to adsorbent performance degradation |
Not quantifiable |
|
Minamiaga No.1 Oil plant — Replaced desulfurization agent |
- |
7,300 |
Replaced desulfurization agent due to adsorption performance degradation |
Not quantifiable |
|
Ozeki Plant — Carried out overhaul and rebuilt of gas engine |
- |
6,000 |
Contributed to keep exhaust gas clean to comply with all the regulations. |
Not quantifiable |
|
Sub-total |
0 |
56,255 |
|
|
|
Conservation of |
Yabase Plant — Install drain water pipe from Yabase Plant to the injection well |
23,200 |
- |
Contributed to maintain water injection capacity by switching injection well |
Not quantifiable |
Akita area — Environmental remediation after decommission |
18,000 |
- |
Managing decommissioned site by constraction of road to the site and ditch at site boundary |
Not quantifiable |
|
Sub-total |
41,200 |
0 |
|
|
|
Conservation of water quality |
Naoetsu LNG Terminal — Carried out integrity evaluation of buried piping under quay |
- |
3,000 |
Performed an external corrosion survey to ensure integrity of pipe |
Not quantifiable |
Sub-total |
0 |
3,000 |
|
|
|
Investment amount total |
304,973 |
60,006 |
|
|
|
Total |
364,979 |
|
|
||
Environmental Investments in FY2016
Objective |
Investment Item |
Investment Amount (thousand Yen) |
Environmental Benefit |
Quantitative Evaluation of Investment Effect or Reduction of Environmental Impact (Physical Units) |
|
|---|---|---|---|---|---|
Capital Investment |
Operating Expense |
||||
Global warming prevention (includes cost of energy conservation measures) |
Cleaned gas turbine compressors |
- |
304 |
Performed regular (monthly) cleaning, since output increases after cleaning |
Gas turbine output increased by approx. 1,200 kW compared to before cleaning Reduction effect: |
Oyazawa Plant — Replaced outdoor lighting facilities |
- |
15,000 |
Saved energy by adopting LED lighting |
Energy-saving effect of 0.5 kL/year (crude oil equivalent) |
|
Chiba Field Office — Changed submersible motor pump model |
103,828 |
- |
Contributed to reduction in power consumption by changing to a high-efficiency, long-life ESPs according to well production capacity |
Improvement in power consumed per pump discharge volume — |
|
Kashiwazaki Iron Plant — Introduced energy-saving facilities (lighting facilities) |
3,624 |
- |
Converted lighting equipment to LED lighting accompanying reconstruction of the former maintenance shop |
Energy-saving effect of 0.74 kL/year (crude oil equivalent) |
|
Kashiwazaki Iron Plant — Introduced energy-saving facilities (air conditioning facilities) |
6,127 |
- |
Introduced gas heat pump air conditioners accompanying reconstruction of the former maintenance shop |
Energy-saving effect of 0.12 kL/year (crude oil equivalent) |
|
Constructed a switching connection to the Naoetsu LNG Terminal vented gas combustion stripper |
16,600 |
- |
Curbed venting of methane gas and other gases by switching to the Naoetsu LNG Terminal vented gas combustion stripper (in fiscal 2016, advance construction of a connection only) |
Not quantifiable |
|
Converted tank truck filling station lighting to LED lamps |
- |
6,100 |
Converted 24 lighting fixtures to LED lamps due to aging of tank truck filling station lighting |
Annual reduction of 34,775 kW/h |
|
Technical Research Center — Replaced emergency generator |
23,600 |
- |
Reduced power consumption by replacing the existing generator with a package-type generator |
Not quantifiable |
|
Gas Guarico — Installed gas compressor start-up air compressors and incidental equipment |
15,320 |
- |
Eliminated hydrocarbon gas leakage and venting by using high-pressure compressed air to start up the gas engines that drive gas compressors |
Annual reduction in vented gas (CH4) of approx. 500 Nm3/year |
|
Sub-total |
169,099 |
21,404 |
|
|
|
Conservation of air quality |
Koshijihara Plant — Truck VOC facilities inspected by the manufacturer |
- |
12,030 |
Inspected truck VOC removal systems |
VOC emissions reduced |
Oyazawa Plant — Replaced VOC removal systems PLC and performed redundancy construction |
10,500 |
- |
Prevented VOC removal systems malfunction due to PLC aging degradation |
Not quantifiable |
|
Oyazawa Plant — Replaced VOC removal systems catalyst |
- |
24,982 |
Replaced VOC removal systems catalyst due to catalyst performance degradation |
Not quantifiable |
|
Oyazawa Plant — Replaced exhaust gas impurity adsorbents |
- |
15,185 |
Replaced exhaust gas impurity adsorbents due to adsorbent performance degradation |
Not quantifiable |
|
Koshijihara Plant Tr-C — Replaced crude oil impurity adsorbents |
- |
21,707 |
Replaced crude oil impurity adsorbents due to adsorbent performance degradation |
Not quantifiable |
|
Minami-Aga No. 1 Plant — Performed filter basin cover repair work |
30 |
- |
Performed filter basin cover repair work to reduce VOCs emitted from gaps due to aging of the cover |
Not quantifiable |
|
Sub-total |
10,530 |
73,904 |
|
|
|
Conservation of |
Akita Field Office — Installed lost circulation detectors in wells |
9,100 |
- |
Installed lost circulation detectors on pumping oil wells (6 wells) in the Akita area and prevented leakage oil due to equipment damage when lost circulation occurs |
Not quantifiable |
Akita Field Office — Installed tank level alarms |
4,100 |
- |
Installed level switches for liquid level height alarms on measuring tanks, warming tanks, and product tanks at the Niibori Gathering Station |
Not quantifiable |
|
Naruto No. 1 and No. 2 Gas Plants — Installed oil leak detectors |
11,250 |
- |
Since drain water containing lubricating oil may flow outside the system if a problem occurs with the treatment system for gas compressor drain water containing lubricating oil, installed oil leak detectors at the ends of external discharge paths |
Not quantifiable |
|
Sub-total |
24,450 |
0 |
|
|
|
Conservation of the natural environment |
Performed landscaping of vacant land set aside for tanks within the Naoetsu LNG Terminal |
29,740 |
- |
Mowed vacant land set aside for tanks |
Not quantifiable |
Sub-total |
29,740 |
0 |
|
|
|
Other |
Oyazawa Plant — Modified firefighting equipment |
436,500 |
- |
Installed large-scale foam extinguishing facilities/installed crude oil tank water spray rings/installed slop tank foam extinguishing lines/converted to remote operation of foam extinguishing master valves/installed oil and grease warehouse firefighting water curtain facilities/converted to remote operation of oil pan drain valves, etc. |
Not quantifiable |
Sub-total |
436,500 |
0 |
|
|
|
Investment amount total |
670,319 |
95,308 |
|
|
|
Total |
765,627 |
|
|
||
Environmental Investments in FY2015
Objective |
Investment Item |
Investment Amount |
Environmental Benefit |
Quantitative Evaluation of Investment Effect or Reduction of Environmental Impact (Physical Units) |
|
|---|---|---|---|---|---|
Capital Investment |
Operating Expense |
||||
Climate change |
No. 1 Gas Plant — Made modifications near the separation tanks accompanying a change of gas compressor suction pressure |
225,662 |
- |
Resulting positive pressure on the flow lines from wells led to decreases in line purging frequency and natural gas (GHG) emissions at the time of well production |
Currently confirming results |
Oyazawa Plant — Replaced outdoor lighting facilities |
- |
26,800 |
Replaced lighting facilities on the Oyazawa Plant grounds with LED lighting (FY2015: 68 sets) |
Energy-saving effect of 1.35 kL/year (crude oil equivalent) |
|
Cleaned gas turbine compressors |
- |
304 |
Performed regular (monthly) cleaning, since output increases after cleaning |
Gas turbine output increased by approx. 1,200 kW compared to before cleaning Reduction effect: 31.2 kL/month, 374 kL/year (crude oil equivalent) |
|
Converted to LED lighting at parking facilities |
- |
490 |
Converted parking facility lighting from mercury lamps to LED lamps at four locations |
Electricity consumption reduced by approx. 3,112 kW/year |
|
Replaced air conditioning facilities |
- |
9,157 |
Replaced the air conditioning at the Tamagawa Dormitory with energy-efficient air conditioning |
Unquantifiable |
|
Sub-total |
225,662 |
36,751 |
|
|
|
Conservation of |
Koshijihara Plant — Converted firefighting equipment |
69,600 |
- |
Installed slop tank foam extinguishing lines and tank sprinkling equipment / converted to remote operation of foam extinguishing lines and tank sprinkling master valves / converted to remote operation of oil pan drain valves, etc. |
Air pollution and water contamination damage from tank fires prevented |
Koshijihara Plant — Increased the number of fire pumps |
79,000 |
- |
Added spare fire pumps |
Air pollution and water contamination damage from tank fires prevented |
|
Increased the number of fire pumps |
82,200 |
- |
Added spare fire pumps |
Air pollution and water contamination damage from tank fires prevented |
|
Koshijihara Plant Tr-A — Converted the VOC removal system temperature control mechanism to a distributed control system (DCS) |
20,000 |
- |
Converted the VOC removal device's temperature control to PCR-based |
Enabled rapid temperature control operation and increased the probability of trip avoidance when a system temperature imbalance occurs |
|
Koshijihara Plant — Lorry VOC facilities inspected by the manufacturer |
- |
23,430 |
Inspected lorry VOC removal systems |
VOC emissions reduced |
|
Koshijihara Plant Tr-A/B — Replaced exhaust gas impurities adsorbent |
- |
31,800 |
Exhaust gas impurity removal system adsorbent replaced due to deterioration of performance |
Impurities removal: 30 kg/year |
|
Koshijihara Plant Tr-C — Replaced crude oil impurities adsorbent |
- |
22,300 |
Crude oil impurity removal system adsorbent replaced due to deterioration of performance |
VOC emissions reduced |
|
Cleaned the inside of the No.1 |
- |
730 |
Maintained and improved VOC removal capacity by cleaning and removing iron oxide and other substances accumulated in the air stripper (filling material) |
VOC emissions reduced |
|
Performed maintenance on No.2 VOC removal system |
- |
1,740 |
Maintained VOC removal capacity by replacing the system's raw water pump, flowmeter, and chemical feed tank |
VOC emissions reduced |
|
Sub-total |
250,800 |
80,000 |
|
|
|
Conservation of |
Conducted an integrity investigation of the Kusouzugawa dedicated bridge |
- |
31,500 |
Approx. 40 years have passed since construction of a dedicated pipeline (including oil) bridge within a class A river. Since oil may flow into public waters if a leak occurs, for a reason including pier or superstructure damage, bridge integrity was verified and coating performed to prevent pollution |
Oil leak volume: zero |
Installed oil leak detectors at each plant |
39,100 |
- |
Since oil may flow into public waters through drainage channels if a leak from plant production facilities occurs, oil leak detectors were installed in oil pans and final water catch basins in drainage channels on plant grounds to minimize the occurrence of pollution |
Oil leak volume: zero |
|
Drilled an LA Site land subsidence observation well |
- |
11,110 |
Ascertained the situation at a location where land subsidence occurred after the start of production of a well within the LA Site |
Land subsidence observation |
|
Minami-Aga No. 1 Plant — Partially replaced a well water injection pipe |
- |
16,500 |
Leaks are occurring at a frequency of approx. twice a year from a well water injection pipe replaced in 1979. Since water may flow into nearby rice paddies and cause pollution if a high-volume leak occurs, a portion of the pipe was replaced |
Oil leak volume: zero |
|
Koshijihara Plant — Installed water supply well flowmeters |
17,000 |
- |
Installed flowmeters on the No. 3 water supply well discharge line and off-premises road sprinkling line |
Ascertainment of groundwater pumping volume |
|
Implemented 8000 flowmeter yard oil leak prevention measure |
810 |
- |
Reduced oil leakage risk by adding a drainage tank, manual drainage valve, and drainage pump upstream of the end drainage tank |
Oil leak volume: zero |
|
Sub-total |
56,910 |
59,110 |
|
|
|
Prevention of noise and vibration |
Minami-Aga Plant — Installed noise reduction measures |
8,000 |
- |
Installed noise reduction measures on injection pumps and outdoor radiator units at the Shinkuwayama Plant and Ozeki Plant |
Noise reduction |
Sub-total |
8,000 |
0 |
|
|
|
Investment amount total |
541,372 |
175,861 |
|
|
|
Total |
717,233 |
|
|
||
Environmental Investments in FY2014
Objective |
Investment Item |
Location/Facility |
Investment Amount |
Environmental Benefit |
Quantitative Evaluation of Investment Effects or Environmental Impact Reduction (Physical Units) |
|||
|---|---|---|---|---|---|---|---|---|
(A) New Installation |
(B) Upgrade/ Repair/ Maintenance |
(A+B) Total |
||||||
Climate change countermeasures (includes cost of energy conservation measures) |
Switched to energy-saving lighting |
Niigata, Chiba |
Maintenance shop, machine shop, welding shop, administration buildings at Chiba District Office, Kashiwazaki Workshop, Logistics |
|
12,809 |
12,809 |
Reduced electricity consumption by switching from fluorescent lamps to LED lighting |
Electricity consumption reduced by 20,700 kWh/year |
Switched to energy-saving air conditioning facilities |
Tokyo |
Air conditioning facilities in all buildings at Technical Research Center |
|
114,668 |
114,668 |
Reduced electricity consumption by completely switching from gas boiler heating/electric cooling facilities to energy-saving gas heat pump air conditioners |
Electricity consumption reduced by 185,977 kWh/year |
|
Changed gas compressor suction pressure |
Chiba |
Gas compressors at No. 2 Gas Plant |
64,608 |
|
64,608 |
Reduced electricity consumption by adding compressor processing volume |
Electricity consumption reduced by 124,800 kWh/year (130 operating days) |
|
Constructed photovoltaic power generation facility |
Niigata |
Building at Pipeline Monitoring Center |
55,914 |
|
55,914 |
Reduced GHG emissions by using renewable energy |
GHG emissions reduced by 4.74 t-CO2/year |
|
Used air compressor high-pressure air for engine start-up |
Venezuela |
Gas compressors at Copa Macoya Plant |
13,900 |
|
13,900 |
Curbed CO2 leakage and venting by using high-pressure compressed air for gas engine start-up |
GHG emissions reduced by 6.6 t-CO2/year accompanying reduction in released gas (CH4) of approx. 500 Nm3/year |
|
Installed the "Dr. Trap" system and software |
Niigata |
Steam traps in Nagaoka Field Office |
1,800 |
|
1,800 |
Maintained the integrity of steam trap operation and reduced fuel consumption by installing the Dr. Trap system for detecting and replacing defective traps |
Replaced 41 defective traps detected in steam trap inspections at 380 locations. Overall natural gas use at the Nagaoka Field Office reduced by 7% from the previous year |
|
Sub-total |
|
|
|
|
263,699 |
|
|
|
Conservation of |
Converted VOC removal systems to digital systems |
Niigata |
VOC removal systems and temperature control mechanisms at the Koshijihara Plant and Oyazawa Plant |
40,000 |
|
40,000 |
Improved VOC removal efficiency through an increase in the VOC removal system operating rate attained by increasing the probability of trip avoidance accompanying manual control of temperature control operation |
Fiscal 2014 VOC removal system operating rate: 99.4% |
Replaced VOC removal system catalyst |
Niigata |
VOC removal systems at Koshijihara Plant and Oyazawa Plant |
|
52,700 |
52,700 |
Reduced VOC emissions into the atmosphere through processing capacity improvement accompanying catalyst replacement |
VOC outlet concentration after catalyst replacement:
Koshijihara → Reduced to 129 mg/Nm3 |
|
Cleaned the inside of the VOC removal system air stripper and filling material |
Niigata |
VOC removal system at Logistics |
|
1,350 |
1,350 |
Restored groundwater VOC processing capacity by cleaning inside of the air stripper and cleaning and removing deposits |
VOC processing capacity:380 t/d in summer, 500 t/d in winter |
|
Sub-total |
|
|
|
|
94,050 |
|
|
|
Chemical substance management |
Replaced adsorbents in mercury removal devices |
Niigata |
Exhaust gas/sales gas/crude oil impurity removal devices at Koshijihara Plant and Oyazawa Plant |
|
98,944 |
98,944 |
Prevented impurity contamination of sales gas and sales oil and emission into the atmosphere by improving mercury removal capacity following adsorbent replacement |
Amount of impurities removed: total of 670 kg/year (maintained capacity at the design value) |
Sub-total |
|
|
0 |
|
98,944 |
|
|
|
Conservation of |
Installed leach filters on injection equipment |
Chiba |
Injection equipment at Site KA |
114,807 |
|
114,807 |
Ensured stable injection water volume accompanying use of the injection water suspended solids removal method (land subsidence countermeasure) |
Since additional countermeasure work was required after start of operation, quantitative evaluation to be conducted after completion of additional work (planned for fiscal 2016) |
Installed oil leak detectors |
Niigata |
Plants and Site AB-40 at Minami Aga |
53,590 |
|
53,590 |
Prevented oil leakage into public water bodies through early detection following introduction of a 24-hour automated monitoring system at unmanned sites |
Oil leak volume: zero |
|
Sub-total |
|
|
|
|
168,397 |
|
|
|
Prevention of noise and vibration |
Installed noise barriers and acoustic absorption materials |
Akita, Chiba |
Reboiler area and gas compressor rooms at Yabase Plant, Sotoasahikawa Plant, and No. 2 Gas Plant |
43,754 |
|
43,754 |
Reduced noise near the plants by installing noise barriers and acoustic absorption materials |
Noise reduction: 5 -10 db at the site boundaries |
Changed the foundation pile driving method, adopted the auger drilling method |
Niigata |
Low-temperature LNG tank, facilities buildings, and equipment/ |
|
72,100 |
72,100 |
Reduced vibration and noise by switching from the hammer method to the auger drilling method |
Noise reduction: estimated value of approx. 20 db |
|
Sub-total |
|
|
|
|
115,854 |
|
|
|
Conservation of natural environment |
Installed water sprinkling pipes, developed green belt (continued) |
Niigata |
Green belt at Naoetsu LNG Terminal |
|
60,000 |
60,000 |
Improved the local environment and made possible CO2 absorption into the future through green belt development and planting of pines and other saplings |
CO2 absorption effect from tree planting: 1580.2 t/year |
Sub-total |
|
|
|
|
60,000 |
|
|
|
Investment amount total (thousand yen) |
388,373 |
412,571 |
800,944 |
|
|
|||