Prepared By: Phone: (403) 266-4850
Phone: (403) 266-4850 Fax: (403) 266-4853
Petro Canada Oil and Gas
PC Devon Kugpik L 46
Ian Kendziora / William Gruben
FinalSampling Summary
Newpark Environmental Services#300, 635 - 6th Ave. S.W., Calgary, Alberta T2P 0T5
PC Devon Kugpik L 46 Drilling Waste Sampling Report
Overview: Newpark Environmental Services was contracted to perform sampling and assessment on the drilling wastes from the PC Devon Kugpik L 46 well drilled in the winter of 2001 / 2002. The well site is located in the MacKenzie Delta region of the lowland taiga plains. The drilling waste generated at the above mentioned location is being managed and disposed of within a containment sump immediately off the east side of the drilling location. Sampling & Assessment: The drilling waste was assessed for visible contamination, frozen state, and volumes. Representative samples were collected from the waste contained within the sump itself as well as the active system at TD (Total Depth). The waste within the pit contained mainly heavy solids and frozen liquids that had been dumped in and pushed up into a backwards ‘S’ shaped berm. Two areas within the sump contained liquids. These areas are noted by sample points X3 and X12. The bermed up solids area was divided into sections and composite sample points were obtained as noted on the sump sampling report. Analytical Results: Soluble salts, total extractable hydrocarbons and physical parameters are summarized on the attached sampling report. In addition, Petro Canada analysed for extractable and volatile hydrocarbons, trace elements (Metals) and toxicity (Toxicity results will accompany a supplemental report upon receipt of lab analysis). Key characteristics of the total waste are summarized in Table #1. below.
Table 1. Total Waste Analytical Results
Parameter Total Waste Composite
Density (kg/m3) 1225 Total Sodium (mg/l) 4,040 Total Sulphur (ug/g) 4,030 Total Calcium (mg/l) 773 Reactive Chlorine (mg/l) 0.3 Chlorides (mg/l) 47,400 Potassium (mg/l) 45,200 pH 12.5 Extractable Hydrocarbons (mg/kg) 204 Volatile Hydrocarbons (mg/kg) 0.1 Mercury (ug/g) 0.043 Antimony (ug/g) <0.9 Arsenic (ug/g) 5.6 Barium (ug/g) 5270 Beryllium (ug/g) 0.43 Cadmium (ug/g) <0.09 Chromium (ug/g) 24.1 Cobalt (ug/g) 7.55 Copper (ug/g) 46.4 Iron (ug/g) 18,200 Lead (ug/g) 10.8 Molybdenum (ug/g) 3.87 Nickel (ug/g) 23.6 Selenium (ug/g) 1.0 Silver (ug/g) <0.2 Thallium (ug/g) <0.7 Tin (ug/g) <0.5 Vanadium (ug/g) 21.6 Zinc (ug/g) 88.9 Microtox (EC50 @ 15 min.) 26 (Fail) Microtox Charcoal (EC50 @ 15min.) 17.4 (Fail) 96 Hour Trout Bioassy (LC 50) 11 (Fail)
Table 2. PROPERTIES OF POTASSIUM CHLORIDE SOLUTIONS (KCl)
% KCl Density (kg/m3)
KCl (kg/m3)
KCl (mg/L)
K+ (mg/L)
Cl- (mg/L)
Final Volume Factor
Freezing Point (° C)
1 1006 11.4 10050 5271 4779 1.004 0 2 1013 20.0 20220 10605 9615 1.008 -1 4 1026 39.9 40960 21482 19478 1.016 -2 6 1039 62.8 62210 32627 29583 1.024 -3 8 1052 82.8 84000 44056 39945 1.033 -4 10 1065 105.6 106300 55752 50548 1.043 -5 12 1079 128.4 129200 67762 61439 1.053 -6 14 1093 154.1 152700 80087 72613 1.064 -7 16 1106 176.9 176700 92674 84026 1.076 -8 18 1120 202.6 201300 105576 95724 1.088 -9 20 1135 225.4 226600 118845 107755 1.102 -10 22 1149 251.1 252400 132376 120024 1.115 -11 24 1160 279.6 279000 146327 132673 1.028 -12
Properties based on 20°C and 100% purity
Mud System The following table summarizes the total mud additives used. Product Unit Size (kg/l) # Units
Product Total Units
Unit Size
Product Total Units
Unit Size
Alcomer 74 P 5
15kg Lignite 10 23 kg
Calcium Carb (325-Grit) 35 25kg Barite 349 40 kg Caustic Soda 23 23kg Barite (Bulk) 2 1000 kg Cl 40 139 20 l MI Gel (Sacks) 260 40kg Citric Acid 11 25 kg Poly Pac Reg 47 23 kg Defoam X 530 1 l Potassium Chloride 4687 25kg Defoam X 23 19 l Sawdust 61 Sacks Desco CF 23 11 kg Soda Ash 37 23 kg Greencide 14 19 l Sodium Bicarbonate 47 23 kg ID Cap 187 25 kg Thermpac UL 78 23 kg Kelzan XCD 165 25kg Urea 61 25 kg Kwik Seal Fine 20 18 kg X-Cide 207 18 3 kg
Summary: The chemistry of this waste and its frozen state show no concerns for on-site freeze down and burial. Hydrocarbon levels are very low and although the salt levels are elevated, they are well below concentrations that will create ‘freeze down’ difficulties, as indicated by the field assessment. Freeze point depression data for KCL systems indicates that the average waste will freeze down at -4 to –5 degrees Celsius.
Operator: Well Name:Location: Date:
Sump Location: Sampled By:
# PitX1 1 Total Sodium (mg/l)X2 2 Total Sulfer (mg/l)X3 3 Chloride (mg/l):X4 4 Reactive Chlorine (mg/l)X5 5 Total Calcium (mg/l)
X6 Density (kg/m3)
X7
X8X9 Temperature of Waste: CX10X11
X12X13X14X15 Treatment Required:X16X17X18 Comments:X19X20
4030
SAMPLE DEPTHS (m) VOLUMES (m 3 ) FIELD ANALYSISTestingTotal
Liquid Solid
Pit #2 is the downhole and tank volume to be added to the sump.
None Required.
mud system is also free of hydrocarbon contamination.
Pit #1 is the sump.
4040
-4
Total
Ian Kendziora / William Gruben
Parameters Waste
Newpark Environmental ServicesNORTHWEST TERRITORIES SUMP SAMPLING REPORT
Petro Canada Oil and GasL 46East Boundary of Drilling Location
PC Devon Kugpik L 46April 22, 2002
1225
474000.3773
SolidsFree-Board Ice Waste
3.5 710Liquid
860
150
Total
SolidsTotalWasteIce Liquid
2.31.52.0
1.0
2.52.50.4
4.04.01.30.81.5 No visible hydrocarbons at any sampling point. Active
SAMPLING OBSERVATIONS
VISIBLE HYDROCARBONS
4.0m
16.0m
X1 X2
X3X4
X5
X6X7
X8 X9
X10
19.0m
#1
X12
X11
56.0
10.0m
14.0m
12.0m
7.0m
Liquid
Solid
Solid
Solid
Ramp
Liquid
AB Sump Sampling Report April, 2002
Operator: Well Name:Location: Date:
Remote Location: Sampled By:
Available Spread Area: ha
Access: ac Cut / Fill: In Meters "A" Horizon Soil Pile: A Trench: tr Fence:A Soil Sample: Berm: Berm "B" Horizon Soil Pile: B Well Center: WC Flare Pit: fpC Soil Sample: Drainage: "C" Horizon Soil Pile: C Spoil Pile: SP
*Distances measured in meters
XAXC
COMMENTS & AREA INFORMATION
LEGEND
Spoil Piles (SP) are comprised of mineral soils and permafrost. The wellsite is very clean with no indication of spilleddrilling fluids, or spills of any sort. All heavy equipment has catch trays to prevent incidental contact with the sitesurface. Tanks are lined with heavy geotex and resistant liner, there are no fluid leaks or spills.
Newpark Environmental ServicesWELLSITE SCHEMATIC
Petro Canada Oil and GasL 46East Boundry of Drilling Location
PC Devon Kugpik L 46April 22, 2002Ian Kendziora / William Gruben
N
ac
160m
MudProducts
WC
SPSumpArea
Akita Equtak60
Rig Camp
ac
160m
Tanks
Tank
SewagePitSP
AB Sump Sampling Schematic April, 2002
Operator: Well Name:Location: Date:
Remote Location: Sampled By:
# PitX1 1 Density (kg/m3):
X2 2 pH:X3 3 E.C. (dS/m):X4 4 Chloride (mg/l):X5 5 Sodium (mg/l):
X6 Nitrogen (mg/l):
X7 Calcium (mg/l):
X8 Magnesium (mg/l):X9 Was sump dug with Cat or Hoe: Soil Texture:X10 Soil Depth (cm):X11 Temperature of Waste:
OC
X12X13 Estimated Water Table Depth: mX14X15 Treatment Required:X16X17X18 Comments:X19X20
SAMPLING OBSERVATIONS
VISIBLE HYDROCARBONS
SolidsTotalWasteIce Liquid
Total
WasteLiquid SolidsFree-Board Ice Solids Waste
Newpark Environmental ServicesALBERTA SUMP SAMPLING REPORT - REMOTE SUMP SITE
Petro Canada Oil and GasL 46East Boundary of Drilling Location
PC Devon Kugpik L 46April 22, 2002
Soil
Ian Kendziora / William Gruben
Parameters Liquid"A"Soil
SAMPLE DEPTHS (m) VOLUMES (m 3 ) FIELD ANALYSISTesting "C"Total Total
X1X2X3X4X5X6X7X8X9X10
5.0m6.5m12.0m7.2m3.6m
#1#2
#3
#4
April, 2002
Operator: Well Name:Location: Date:
Remote Location: Sampled By:
Available Spread Area: ha
Access: ac Cut / Fill: In Meters "A" Horizon Soil Pile: A Trench: tr Fence:A Soil Sample: Berm: Berm "B" Horizon Soil Pile: B Well Center: WC Flare Pit: fpC Soil Sample: Drainage: "C" Horizon Soil Pile: C Spoil Pile: SP
*Distances measured in meters
XAXC
East Boundary of Drilling Location
PC Devon Kugpik L 46April 22, 2002Ian Kendziora / William Gruben
COMMENTS & AREA INFORMATION
LEGEND
The constructed sump is approximately 5m deep. The freeboard on the west side of the empty part of the sump is 4m and 6m onthe east side. The majority of the waste in the sump is drill cuttings and centrifuge solids that were dumped into piles with the
the completion of the well.
Newpark Environmental ServicesSUMP SCHEMATIC
Petro Canada Oil and GasL 46
loader. The ramp is also composed of the same drilling material. The drilling waste in the SE corner of the sump is in a slurried state with an average depth of 1.2m. There is 260m3 of drilling fluid in the active system that will be added to the sump at
4m
4.5m
N
SumpBottom
ac
56m
Slurry / Liquids
Ramp
6%
4.5m
19m
12m
16m
4m
3.5m
10m
14m
7m
4m
2m
3.5m Freeboard
4.7m Freeboard1.0m Freeboard
4.0m Freeboard
Waste Pile
Waste Pile
Waste Pile
Waste Pile
Waste Pile
6%
30%
April, 2002