FIELD REPORT 148

Dual Pool 626 vs MONGOOSE PRO

ObjectiveTo compare the performance of the Derrick Dual Pool 626 shaker to the M-I SWACO MONGOOSE PRO shaker and evaluate the cost savings benefits.

Test ProcedureThe Derrick Dual Pool 626 shaker and the M-I SWACO MONGOOSE PRO shaker were installed on a rig in Canada with a Derrick Flo-Divider to ensure equal distribution of flow. Testing commenced when the well displaced from water-based mud to oil-based mud (OBM; 8.0 ppg) at a depth of 7,457 ft. Discard samples were taken per formation interval and averages were calculated from multiple samples. Sampling of the shaker discard was collected to determine the following:

1. Oil on Cuttings (OOC) of samples from each shaker

2. Total discard volume rate over time from each shaker

3. Discard rate of cuttings from each shaker

Oil On Cuttings TestUnweighted Drilling Conditions: Depth: 7,457 ft Bit Size: 7-7/8 ROP: 9.8 ft/hr MW: 8.26 PPG Circulating Rate: 520 GPM

The first series of shaker discard testing consisted of MI-SWACO XR-230 (API 140) screens placed on the MONGOOSE PRO and Derrick DX-A140 (API 140) screens placed on the Dual Pool (DP) 626. Rig flow was split equally between both shakers and the deck angles of both shakers were set to give the same dewatering distance of 23 inches. The MONGOOSE PRO produced an OOC value of 2.3 bbl mud/bbl cuttings while the DP 626 produced an OOC value of 1.3 bbl mud/bbl cutting, reducing bbl mud/bbl cuttings by 43% by volume.

35% Drier Cuttings Discharge $1,855 Daily Drilling Fluid Cost Savings

Rig flow was then adjusted to allow 100% flow to each shaker. The 100% flow test yielded 2.42 bbl mud/bbl cuttings value for the MONGOOSE PRO, while the DP 626 produced a 1.53 bbl mud/bbl cuttings value, reducing bbl mud/bbl cuttings by 37%. It was determined that the MONGOOSE PRO had reached its maximum capacity with the XR-230 screens while the DP 626 had additional deck angle availability. With this determination, DX-A200 (API 200) screens were placed on the DP 626 with 100% flow producing an OOC value of 1.57 bbl mud/bbl cuttings, reducing bbl mud/bbl cuttings by 35% by volume.

Derrick DX-A140 (API 140) vs M-I SWACO XR-230 (API 140)

at 50/50 Split Flow

OO

C V

alue

(bbl

mud

/ b

bl c

utti

ngs)

Derrick DX-A200 (API 200) vs M-I SWACO XR-230 (API 140)

at 100% Flow

Oil on CuttingsUnweighted Drilling Conditions

0

0.5

1.0

1.5

2.0

2.5

3.0

DP 626

1.3

2.3 2.42

1.57

MONGOOSE PRO

For more information, please contact your local Derrick sales representative.15630 Export Plaza Drive Houston, Texas 77032 Toll Free: (866) DERRICK T: (281) 590-3003 F: (281) 590-6187

derrick@derrick.com www.derrick.com

FIELD REPORT 148

DEC DP626 v MONGOOSE PRO | Field Report 148 - 7/14 Copyright 2014 Derrick Corporation (All rights reserved)All products indicated by trademark symbols are trademarked and/or registered by Derrick Corporation. M-I SWACO, MONGOOSE PT, and MONGOOSE PRO XR, XL are trademarks of SWACO, A Division of M-I L.L.C., A Schlumberger Company

7457 7746 8071 10925 12661 13232

% V

olum

e So

lids

in D

isca

rd

Depth (ft)

Cuttings Dryness Comparison

30%32%34%36%38%40%42%44%46%48%50%

DP 626 MONGOOSE PRO

DP 626 Averages 35% Drier Cuttings Discharge

Weighted Drilling Conditions: Depth: 11,234 ft Bit Size: 7-7/8 ROP: 87 ft/hr MW: 11.76 PPG Circulating Rate: 528 GPM

During the lateral section of the hole in the Montney formation, drilling rates reached in excess of 300 ft/hr with weighted mud. Consistent with operator specifications, 50/50 split flow was distributed to M-I SWACO XL-165 [API 140] screens on the MONGOOSE PRO and Derrick DX-A170 [API 170] screens on the DP 626 with optimum deck angles to produce an equal drying distance. The MONGOOSE PRO produced an OOC value of 2.08 bbl mud/bbl cuttings while the DP 626 produced an OOC value of 0.82, reducing bbl mud/bbl cuttings by 61% by volume.

Capacity:During the test with an 8.26 ppg OBM, the maximum capacity of the MONGOOSE PRO with XR-230 [API 140] screens was determined to be 520 GPM at its maximum screen angle of +8. The DP 626 was able to process the same flow of 520 GPM with DX-A200 [API 200] screens at a screen angle of +4.5, leaving the capability to increase flow by increasing the deck angle another +2.5.

Cost Savings:An average savings of $1,885/day in discarded drilling fluid was seen throughout the OBM section of the well when using the DP 626. Savings were calculated with the cost of OBM drilling fluid at $190/bbl and the OOC value difference between the MONGOOSE PRO and DP 626 collected above.

Conclusion:The Dual Pool 626 provided an average of 35% drier cuttings discharge while running one API screen size finer and provided $1,855 daily in drilling fluid costs.

Oil on Cuttings Weighted Drilling Conditions

DP 626 MONGOOSE PRO

OO

C V

alue

(bbl

mud

/ b

bl c

utti

ngs)

0

0.5

1.0

2.08

1.5

2.0

0.82

2.5

3.0

Derrick DX-A170 (API 170) vs M-I SWACO XL-165 (API 140)

at 50/50 Split Flow