1. Kuda Laut-1; Singa Laut-1
Drilling Fluids Program Review – Pre-Spud
PT M-I Indonesia
January 9th, 2014

2. KL-1 and SL-1 - Tuna field exploration wells
Overview
KL-1 and SL-1 - Tuna field exploration wells
Kuda Laut-1 – 36” and 26” riserless, SW+ Sweeps; 16” modified ULTRADRIL; 12-1/4” ULTRADRIL
Singa Laut-1 – sidetrack 12-1/4” in KL-1’s 13 3/8” casing cont’d with 8-1/2”, ULTRADRIL

3. Logistics – contingencies especially on LCM
Key Issues
Possibility to encounter severe to total losses while passing through fault – SL-1
Logistics – contingencies especially on LCM
Possible elevated Mud Weights expected for SL-1

4. KL-1 – 36” Riserless – 461’ to 745’ MDRT
Drilling fluid: Sea Water / Hi-Vis Sweeps
Key products: Bentonite, Soda Ash, Potassium Hydroxide
Key issues: Hole cleaning, hole instability
Regularly pumped high viscosity sweeps will ensure hole is getting cleaned
Proposed frequency of bbls for each 45 ft drilled
The Bentonite will provide the overall viscosity and fluid loss control
Density 9.0 ppg – displacement at section TD

5. KL-1 – 26” Riserless – 745’ to 1,500’ MDRT
Drilling fluid: Sea Water / Hi-Vis Sweeps
Key products: Bentonite, Soda Ash, Potassium Hydroxide, Duovis
Key issues: Hole cleaning, hole instability
Regularly pumped high viscosity sweeps will ensure hole is getting cleaned
Proposed frequency of bbls for each 45 ft drilled
The Bentonite will provide the overall viscosity and fluid loss control
Density 9.0 ppg – displacement at section TD

6. KL-1 – 16” – 1,500’ to 4,700’ MDRT Drilling fluid: KCl/Ultrahib
Key products: KCl, Ultrahib, Duo-Vis, Polypac UL
Key issues: Wash Out, Hole cleaning, Lost circulation.
Density 9.5 – 10.0 ppg
Ultrahib concentration % v/v and the KCl at 8-10% w/w, to achieve a good level of inhibition in the system
6 RPM: 12-16
LGS less than 5%
Idcap D, Starglide, various LCM - contingency

7. KL-1 – 12-1/4” – 4,700’ to 9,603’ MDRT Drilling fluid: ULTRADRIL
Key products: KCl, Ultrahib, Idcap D, Flo-Vis Plus, Polypac UL
Key issues: Wash Out, Hole cleaning, Lost circulation.
Density 10.0 – 11.0 ppg
Volume carried forward from 16” – conditioned to full ULTRADRIL specs
Ultrahib concentration % v/v and the KCl at 8-10% w/w, to achieve a good level of inhibition in the system
Idcap D encapsulator at 2-3 ppb to prevent cuttings dispersion

8. KL-1 – 12-1/4” – 4,700’ to 9,603’ MDRT (cont.)
Drilling fluid: ULTRADRIL
Key products: KCl, Ultrahib, Idcap D, Flo-Vis Plus, Polypac UL
Key issues: Wash Out, Hole cleaning, Lost circulation.
6 RPM: 10-14
Fluid loss should be maintained <5cc API by using ppb Polypac UL
Combination of 1.5ppb Safe Carb 20 & 1.5ppb Safe Carb 40 would be added to seal off across permeable formations
Save leftover ULTRADRIL volume to be conditioned for Singa Laut-1 kickoff

9. SL-1 – 12-1/4” – 4,450’ to 9,385’ MDRT Drilling fluid: ULTRADRIL
Key products: KCl, Ultrahib, Idcap D, Flo-Vis Plus, Polypac UL
Key issues: Lost circulation through Fault, Hole instability, Bit balling, Hole cleaning
Sidetrack kickoff in the 13 3/8” casing of KL-1
Wide density range 10.0 – 13.0 ppg
While drilling through fault, severe to total losses expected – LCM strategy in place
Combination of 2.5ppb Safe Carb 20 & 2.5ppb Safe Carb 40 would be added to seal off across permeable formations

10. SL-1 – 12-1/4” – 4,450’ to 9,385’ MDRT (cont.)
Drilling fluid: ULTRADRIL
Key products: KCl, Ultrahib, Idcap D, Flo-Vis Plus, Polypac UL
Key issues: Lost circulation through Fault, Hole instability, Bit balling, Hole cleaning
Ultrahib concentration % v/v and the KCl at 8-10% w/w, to achieve a good level of inhibition in the system
Idcap D encapsulator at 2-3 ppb to prevent cuttings dispersion
6 RPM: 10-14
Fluid loss should be maintained <5cc API by using ppb Polypac UL

11. ●RIH with Open End DP/ Use Well Commander
SL-1 – 12-1/4” – LCM Strategy
The LCM decision tree should be consulted for dealing with any losses and loss circulation material will be available on location.
Pill options for Partial to Severe losses:
20bph < Dynamic < 100bph
Stop drilling.
● Spot 50 bbl LCM 40 ppb
- QUICKSEAL M 16 ppb
- MIX-II M 7 ppb
- MIX-II C 7 ppb
- SAFE-CARB 250 at 10 ppb
●RIH with Open End DP/ Use Well Commander
● Spot 75 bbl LCM 100 ppb.
- QUICKSEAL M at 25 ppb
- QUICKSEAL C at 40 ppb
- MIX-II M at 10 ppb
- MIX-II C at 10 ppb
- SAFE-CARB 250 at 15 ppb

12. SL-1 – 12-1/4” – LCM Strategy (cont.)
The LCM decision tree should be consulted for dealing with any losses and loss circulation material will be available on location.
Pill options for Partial to Severe losses:
20bph < Dynamic < 100bph
●RIH with Open End DP/ Use Well Commander
Spot 50 bbl StopLoss 50 ppb
StopLoss at 50 ppb
PUMP FORM-A-SQUEEZE/ FORM-A-BLOK 50 bbl pill (separate mixing/squeezing procedure attached)

13. SL-1 – 8-1/2” – 9,385’ to 11,006’ MDRT Drilling fluid: ULTRADRIL
Key products: KCl, Ultrahib, Idcap D, Flo-Vis Plus, Polypac UL
Key issues: Hole instability, Bit balling, Wash out
Wide density range 10.0 – 13.5 ppg
Volume carried forward from 12-1/4” – conditioned to ULTRADRIL specs
Ultrahib concentration % v/v and the KCl at 8-10% w/w, to achieve a good level of inhibition in the system
Idcap D encapsulator at 2-3 ppb to prevent cuttings dispersion

14. SL-1 – 8-1/2” – 9,385’ to 11,006’ MDRT (cont.)
Drilling fluid: ULTRADRIL
Key products: KCl, Ultrahib, Idcap D, Flo-Vis Plus, Polypac UL
Key issues: Hole instability, Bit balling, Wash out
6 RPM: 10-12
Fluid loss should be maintained <5cc API by using ppb Polypac UL
Combination of 2.5ppb Safe Carb 20 & 2.5ppb Safe Carb 40 would be added to seal off across permeable formations

15. KL-1, SL-1 Mud Program Summaries
Questions?
Thank You!