GASPRO
COMPRESSION CORP.
Gas Pro BTEX VRU Presentation by:
Mustafa Siddiqui – M.Eng., E.I.T.
GASPRO COMPRESSION CORP. Gas Pro BTEX VRU Presentation by: Mustafa - - PowerPoint PPT Presentation
GASPRO COMPRESSION CORP. Gas Pro BTEX VRU Presentation by: Mustafa Siddiqui M.Eng., E.I.T. About us Gaspro Compression Corp. is the leading provider of low horsepower (below 100 HP) gas compressor packages in Canada. Our company was born
COMPRESSION CORP.
Gas Pro BTEX VRU Presentation by:
Mustafa Siddiqui – M.Eng., E.I.T.
Gaspro Compression Corp. is the leading provider of low horsepower (below 100 HP) gas compressor packages in
Alberta — however in terms of industry positioning, we are anything but “small town.” Being able to adapt our technology to best fit clients’ needs, is one of the many reasons we have evolved into an industry leader. Since 2003, Gaspro has been developing dependable, low maintenance and user friendly compressor packages that surpass industry standards. All our packages are engineered for extended, cost efficient operation and we are continually improving and innovating our products to keep up with the ever changing industry demands
Gas well compression Casing gas compression
Tank vapor recovery units (VRU) BTEX VRU on glycol dehydrators
Without a compressor With a compressor
Oil Well bore Reservoir Formation Tubing Casing Annulus between casing and
associated gas (often referred as “solution gas” or “casing gas”). If the pressure in the annulus gets too high, it holds back the flow of reservoir products into the well bore.
Phigh
Oil Well bore Reservoir Formation Tubing Casing Casing gas Gaspro package Gaspro compressor package reduces the pressure in the annulus, thus allowing more reservoir products (oil, water, gas etc.) to flow into the well bore
Plow
36 7,680 5,452 764 7,054 2,969 5,639 7,532 11,205 0.5 61.4 78.8 8.6 57.0 23.8 43.4 80.1 76.6 14.4 7,991.7 14,393.4 3,238.8 2,336.2 2,767.4 8,333.9 3,914.7 1,837.7 1.1 39.1 19.8 0.5 15.2 14.8 15.3 44.2 157.2 1.1 33.8 78.9 16.9 94.9 42.7 64.7 163.7 87.5
1 10 100 1,000 10,000 100,000
Bonnyville Drayton Valley Grand Prairie High Level Medicine Hat Midnapore Red Deer
Wainwright
Rough snapshot of Alberta crude oil batteries sorted by region (Includes heavy oil wells
Primary bitumen, SAGD, CSS) and oil sands mining) – AER ST60 February 2017 data
Number of Wells
(thousand bpd)
Vented (e3m3/d)
Flared (e3m3/d)
3,715 17,952 14,124 6,703 1,563 1,210 320 316 303 110 25 28 1 9 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 0-1 2-5 6-10 11-20 21-30 31-40 41-50 51-60 61-99 100-149 150-199 200-249 250-299 300+
Number of wells Average production per well (Barrels per day)
Alberta Crude oil wells average production1 (Production is reported on a monthly basis and for several multiwell batteries, hence this is a rough estimation only) – AER ST-60 (February 2017 data)
Low flow rates Higher pressure differential Eliminates the need for a scrubber and an
aftercooler
Low cost!
Total Alberta oil production: ~ 3.3 million bpd1
About 1.3 million bpd of thermal bitumen production2 (Most of which is through SAGD)
Solvent extraction technologies are being tested as alternative to SAGD.
Gas Pro has provided compressors for recovery of propane solvent and butane solvent pilots.
Performance variation can be quite large:
Also need to consider liquids dropping out at high pressures
1. http://www.oilsandsmagazine.com/energy-statistics/alberta – February 2017 data – Accessed Nov. 9, 2017 2. http://www.albertacanada.com/files/albertacanada/AOSID_QuarterlyUpdate_Fall2017.pdf – February 2017 data – Accessed Nov. 9, 2017
Blackmer NG602 Compressor – 30 psig suction, 200 psig discharge, 825 RPM, 13.5 psi atm, 86 F gas temperature at suction Butane Propane Natural Gas (0.65 SG) SCFM 56.6 87 106.2 BHP 12.5 17.6 22.2
Crude oil storage tanks emit methane and other volatile organic compounds that flash off from the oil. Gaspro’s vapor recovery units (VRU) are designed to recover the vapors coming off from the tanks (typically at only a few ounces (oz/in2) of pressure) and then compressing it back into the system. The VRU can provide significant economic and environmental benefits to the client.
Benzene is a carcinogenic compound whose emissions from glycol regenerator still columns at natural gas dehydrator facilities are strictly regulated in Alberta in accordance with Alberta Energy Regulator’s (AER) Directive 039. Gaspro Compression’s BTEX VRU system recovers all emissions from the regenerator still column and reinjects the recovered vapor into the facility
Implementation schedule by calendar year to reduced emissions 2014 2015 2016 2017 2018 Distance in metres (m) Emission limit required as of January 1 of the calendar year in tonnes (t) No control or a control
appropriately designed flare
≤ 100 0.0 101 – 250 0.1 251 – 750 1.0 0.5 > 750 3.0 2.0 1.0 After control emission limit for an appropriately designed flare
≤ 250 1.0 251 – 750 1.0 > 750 3.0
* Source: AER Directive 039: Revised Program to Reduce Benzene Emissions from Glycol Dehydrators, January 22, 2013
Regenerator
Still Column
Pump
Flash Tank
Wet gas Rich Glycol Lean Glycol Dry Gas
Steam + GHGs + VOCs (including Benzene, Toluene, EthylBenzene & Xylene)
CONTACTOR
Fuel gas line
Compressor
GENERIC DEHY PROCESS FLOW DIAGRAM
Regenerator
Still Column
Pump
Flash Tank
Wet gas Rich Glycol Lean Glycol Dry Gas
Steam + GHGs + VOCs (including Benzene, Toluene, EthylBenzene & Xylene)
CONTACTOR
Fuel gas line
Compressor
GASPRO Cooler Box STORAGE TANK Condensates + GHGs + VOCs Uncondensed vapor – Can be vented, flared, incinerated or used in the burner
GASPRO CONDENSER BOX CONTROL SYSTEM
GASPRO Cooler Box Regenerator
Still Column
Pump
Flash Tank
Wet gas Rich Glycol Lean Glycol Dry Gas
Condensates + GHGs + VOCs
CONTACTOR
Fuel gas line
Uncondensed vapor
Compressor Gaspro Compressor
Separator
Make up gas
Liquids pump
Steam + GHGs + VOCs (including Benzene, Toluene, EthylBenzene & Xylene)
GASPRO BTEX VRU CONTROL SYSTEM
Gas composition varies based on different factors (from different clients)
Case 1: Regenerator Overheads Stream
100 deg. C Pressure 101.33 KPaa Flow Rate 1.04E+01 m^3/hr Component Conc. Loading (vol%) (kg/hr)
7.20E+01 5.71E+00 Carbon Dioxide 4.45E+00 8.62E-01 Nitrogen 2.13E-01 2.63E-02 Methane 1.11E+01 7.88E-01 Ethane 3.32E+00 4.40E-01 Propane 2.33E+00 4.52E-01 Isobutane 4.32E-01 1.11E-01 n-Butane 9.97E-01 2.55E-01 Isopentane 2.20E-01 7.00E-02 n-Pentane 2.94E-01 9.36E-02 Cyclopentane 8.67E-01 2.68E-01 n-Hexane 1.20E-01 4.56E-02 Cyclohexane 2.49E-01 9.23E-02 Other Hexanes 3.78E-03 1.43E-03 Methylcyclohexane 2.01E-01 8.71E-02 2,2,4-Trimethylpentane 4.30E-03 2.16E-03 Benzene 1.18E+00 4.05E-01 Toluene 1.19E+00 4.82E-01 Ethylbenzene 1.14E-01 5.33E-02 Xylenes 4.77E-01 2.23E-01 C8+ Heavies 2.09E-01 1.57E-01
100 1.06E+01 Case 2: Regenerator Overheads Stream
100 deg. C Pressure 101.33 KPaa Flow Rate 2.90E+01 m^3/hr Component Conc. Loading (vol%) (kg/hr)
9.47E+01 2.09E+01 CarbonDioxide 1.57E+00 8.46E-01 Nitrogen 7.24E-03 2.48E-03 Methane 4.23E-01 8.29E-02 Ethane 4.24E-01 1.56E-01 Propane 5.17E-01 2.79E-01 Isobutane 1.20E-01 8.53E-02 n-Butane 3.20E-01 2.27E-01 Isopentane 6.95E-02 6.13E-02 n-Pentane 9.26E-02 8.17E-02 Cyclopentane 3.06E-01 2.62E-01 n-Hexane 2.99E-02 3.15E-02 Cyclohexane 7.56E-02 7.78E-02 Other Hexanes 1.18E-03 1.24E-03 Heptanes 7.75E-03 9.50E-03 Methylcyclohexane 4.30E-02 5.16E-02 2,2,4-Trimethylpentane 4.96E-04 6.93E-04 Benzene 6.59E-01 6.29E-01 Toluene 4.71E-01 5.30E-01 Xylenes 1.17E-01 1.52E-01 C8+ Heavies 3.36E-03 6.99E-03
100.0 2.45E+01 Case 3: Regenerator Overheads Stream
100 deg. C Pressure 101.33 KPaa Flow Rate 1.75E+01 m^3/hr Component Conc. Loading (vol%) (kg/hr)
8.95E+01 1.19E+01 CarbonDioxide 5.12E-01 1.67E-01 Nitrogen 1.34E-02 2.77E-03 Methane 4.74E+00 5.63E-01 Ethane 5.31E-01 1.18E-01 Propane 2.93E-01 9.57E-02 Isobutane 9.15E-02 3.94E-02 n-Butane 1.80E-01 7.74E-02 Isopentane 6.66E-02 3.55E-02 n-Pentane 7.59E-02 4.06E-02 n-Hexane 5.25E-02 3.35E-02 Cyclohexane 1.68E-01 1.07E-01 Methylcyclohexane 1.99E-01 1.45E-01 2,2,4-Trimethylpentane 2.28E-03 1.93E-03 Benzene 1.17E+00 6.79E-01 Toluene 1.59E+00 1.08E+00 Ethylbenzene 1.03E-01 8.12E-02 Xylenes 7.20E-01 5.66E-01
100 1.57E+01 Case 4: Regenerator Overheads Stream
100 deg. C Pressure 101.33 KPaa Flow Rate 4.69E+01 m^3/hr Component Conc. Loading (vol%) (kg/hr)
9.85E+01 3.52E+01 CarbonDioxide 1.13E+00 9.82E-01 Nitrogen 2.69E-04 1.49E-04 Methane 1.12E-01 3.56E-02 Ethane 5.60E-02 3.34E-02 Propane 1.31E-02 1.14E-02 Isobutane 2.02E-03 2.33E-03 n-Butane 2.35E-03 2.70E-03 Isopentane 8.15E-04 1.16E-03 n-Pentane 4.28E-04 6.12E-04 Cyclopentane 1.06E-02 1.47E-02 n-Hexane 3.35E-04 5.71E-04 Cyclohexane 6.85E-03 1.14E-02 Other Hexanes 1.31E-03 2.23E-03 Heptanes 9.59E-04 1.90E-03 Methylcyclohexane 9.95E-04 1.94E-03 2,2,4-Trimethylpentane 9.77E-06 2.21E-05 Benzene 9.99E-02 1.55E-01 Toluene 2.61E-02 4.76E-02 Ethylbenzene 1.62E-03 3.42E-03 Xylenes 1.97E-02 4.15E-02
100.0 3.65E+01
Other factors such as gas composition, glycol flow rate, contactor pressure / temperature also play a big role
Specifically designed for glycol regenerator emissions Upgrade dehydrator only once No need for tank maintenance Possibility to tie in other vent sources In February 2017, Process Ecology and Greenpath visited the
site for inspection of our BTEX VRU system.
The inspection found that our BTEX VRU resulted in zero
emissions at this location
Overall, the system conserved ~ 651 tonnes/yr of GHG
emissions and ~ 29 tonnes/yr of BTEX emissions. Report can be found at: https://www.ptac.org/wp-content/uploads/2017/07/GasPro- Final-Report-Rev-1-July-2017.compressed-1.pdf
National Research Council Canada for providing IRAP grant
for this project
PTAC for providing us the platform to introduce our
technology and helping us secure Natural Resources Canada funding for a third party inspection
Process Ecology, GreenPath Energy, Cap-op Energy for their
support and guidance to Gas Pro.
CNRL for providing the location to test our first prototype. (First
unit has been in operation since March, 2016)
Tom Nichols
President
Cell: +1 (403) 443-1115 Email: tom.nichols@gaspro.ca
Mustafa Siddiqui, M.Eng., E.I.T.
Production Engineer
Cell: +1 (403) 443-1494 Email: mustafasid@live.com
Website: www.gaspro.ca Phone: +1 (403) 443-8886 Fax: +1 (403) 443-5288
Ayaz Mahmood, M.Sc., E.I.T.
Project Engineer
Cell: +1 (403) 443-9535 Email: ayaz.mahmood@gaspro.ca