Benchmark 8 LubricantsBenchmark 8 Lubricantsinin

SILDRIL SystemSILDRIL System

Steve SmithSteve Smith

SummarySummary

Samples tested: 3 new samples & 5 previously used products.

FTIR & GC/MS: general class and more specific chemistry.

Tested @ AEL on HLT: metal-to-metal @ 1 & 3% v/v (75F) & 3% v/v, AHR 16 hrs @ 150F, for ∆% CoF.

DefinitionsDefinitions

∆% CoF: percent reduction in coefficient of friction, a simple variance.

[Cf Base Fluid – (Cf BF + Lube)] = ∆% CoF

Cf Base Fluid

Lubricant CandidatesLubricant Candidates

Tradename Manufacturer/ Supplier

Database Classification Comments

Geolube BL Houghton Alkanolamines Amber Liquid

DHM 07-24 Houghton High Molecular Esters Dark Brown Liquid

Geolube WB Houghton Alkanolamides Dark Brown Liquid

BW Polylube J.L. Seaton & Co Ltd

High Molecular Esters Light-Yellow, Clear Liq.

Finagreen SL Oleon/ Radia Chemicals

Amino Condensate, Amides & Alkanolamides

Dark Amber Liquid

SILDRIL EPL Gumpro Chem High Molecular Esters Dark Reddish Liquid

DRIL-FREE Lamberti Italy Ester of Aliphatic Acid Light-Yellow, Clear Liq.

FLO-LUBE II Precision Additives Proprietary blend + Sulfur

Dark Amber Liquid

Base Fluid FormulationBase Fluid FormulationFluid Formulation 1  

Freshwater, bbls 0.768  

POLYPAC UL, ppb 2.0  

DUO VIS, ppb 0.75  

KCl, 8% by Wt, ppb 23.4  

SILDRIL, 8% by Vol, ppb 42.8  

Barite, ppb 166.56  

     

Mud Properties Initial Aged

Heat Aging Temp, °F   110

Heat Aging Hours   >1

Static/Rolling/Silverson   Silverson

     

Mud Weight, ppg 12.0 12.0

Rheo Temp, °F 120 120

     

600 rpm 40 42

300 rpm 26 28

200 rpm 22 22

100 rpm 15 15

6 rpm 5 5

3 rpm 4 4

     

PV, cps 14 14

YP, lb/100ft2 12 14

10 sec gel 4 4

10 min gel 4 4

     

API Filtrate, ml 7.4 8.8

     

pH 11.65 11.62

Mud Properties, AHRMud Properties, AHRMud Properties Geolube BL DHM 07-24 Geolube WB Polylube Finagreen SL Sildril EPL

Heat Aging Temp, °F 150 150 150 150 150 150

Heat Aging Hours 16 16 16 16 16 16

Static/Rolling Rolling Rolling Rolling Rolling Rolling Rolling

             

Mud Weight, ppg 12.0 12.0 12.0 12.0 12.0 12.0

Rheo Temp, °F 120 120 120 120 120 120

             

600 rpm 33 47 48 39 42 36

300 rpm 24 27 33 27 27 23

200 rpm 22 20 23 19 20 18

100 rpm 17 14 16 13 14 12

6 rpm 5 5 5 4 4 4

3 rpm 4 4 4 3 3 3

             

PV, cps 9 20 15 12 15 13

YP, lb/100ft2 15 7 18 15 12 10

10 sec gel 3 4 4 4 3 3

10 min gel 5 4 5 5 4 4

             

API Filtrate, ml 6.6 10.1 12.6 7.6 9.0 6.8

             

pH 11.58 11.6 11.57 11.67 11.55 11.68

Check for SulfidesCheck for Sulfides

Picture to left was the equipment set-up used for the determination of sulfides in samples with candidate lubricants.

A tygon tube was attached to valve stem and a low range Dräger tube was inserted in the other.

Lubricant Evaluation Benchmark in 12.0 ppg SILDRIL:Effect of Lubricant Additions on CoF Reduction (%)

-15.0

-10.0

-5.0

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

Lubricants Evaluated

Co

F R

ed

uc

tio

n (

%)

1% Lubricant 23.5 19.6 15.9 11.5 -2.7 -2.1 10.4 0.40

3% Lubricant 29.6 26.4 18.1 15.7 1.4 6.2 2.0 -4.00

3% AHR @ 150F 28.2 26.5 19.5 18.4 21.6 13.3 -13.6

Geolube BL DHM 07-24 Geolube WB BW Polylube Finagreen SL Sildril EPL DRIL-FREE FLO-LUBE II

% Reduction CoF, Results% Reduction CoF, Results

3% v/v AHR @ 150F3% v/v AHR @ 150FLubricant Evaluation in 12.0 ppg SILDRIL

Composite: Benchmark 8 Samples3%v/v, AHR @ 150F

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0 2 4 6 8 10 12 14 16 18 20 22

Time (min)

Co

effi

cien

t o

f F

rict

ion

(C

oF

)

SILDRIL 12.0PPG +3% GEOLUBE BL AHR+3% DHM 07-24 AHR +3% GEOLUBE WB AHR+3% BW POLYLUBE AHR +3% FINAGREEN SL AHR+3% SILDRIL EPL AHR +3% DRIL-FREE AHR

AVERAGE CoF, AHR @ 150FBase SILDRIL=0.2816 3%GEOLUBE BL=0.2033 3%DHM 07-24=0.20823%GEOLUBE WB=0.2279 3%BW POLYLUBE=0.2309 3%FINAGREEN SL=0.22203%SILDRIL EPL=0.2454 3%DRIL-FREE=0.3216 3%FLO-LUBE II= N.A.

Geolube BL, ResultsGeolube BL, ResultsLubricant Evaluation in 12.0 ppg SILDRIL

Houghton, GEOLUBE BL, 1% & 3% v/v @ 75Fand AHR 16 Hr @ 150F

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0 2 4 6 8 10 12 14 16 18 20 22

Time (min)

Co

eff

icie

nt

of

Fri

cti

on

(C

oF

)

SILDRIL 12.0PPG +1%GEOLUBE BL+3%GEOLUBE BL +3% GEOLUBE BL AHR

AVERAGE CoFBase SILDRIL=0.2816

+1%GEOLUBE BL=0.2165+3%GEOLUBE BL=0.1993

+3%GEOLUBE AHR=0.2033

Average CoFAverage CoF ReadingsReadingsLubricant Evaluation in 12.0 ppg SILDRIL

Average CoF for test period per concentration

0.10

0.12

0.14

0.16

0.18

0.20

0.22

0.24

0.26

0.28

0.30

0.32

0.34

Lubricants Evaluated

Co

effic

ien

t of F

rici

tion

(Co

F)

Sildril 12.0 ppg 0.2816 0.2816 0.2816 0.2816 0.2816 0.2816 0.2816 0.2816 0.2816

1% Lubricant 0.2165 0.2276 0.2382 0.2507 0.2908 0.2892 0.2537 0.2821

3% Lubricant 0.1993 0.2085 0.2318 0.2387 0.2791 0.2657 0.2775 0.2943

3% AHR @ 150F 0.2033 0.2082 0.2279 0.2309 0.2220 0.2454 0.3216

Sildril 12.0 ppg Geolube BL DHM 07-24 Geolube WB BW Polylube Finagreen SL Sildril EPL DRIL-FREE FLO-LUBE II