1. Higher ROP & Longer Bit life
The EJECTOR Near-Bit
Higher ROP & Longer Bit life

2. The Obvious and proven Benefits: Higher ROP & Longer Bit life
The EJECTOR Near-Bit
The Ejector is a Near-bit sub, similar to a standard NB Tool, but it is designed and engineered for creating a vacuum effect at the bit formation interaction face thus expelling the cuttings readily as they are generated!
The Ejector NB tool also increases the speed of cuttings traveling up the annulus.
The Obvious and proven Benefits:
Higher ROP & Longer Bit life

4. Compatibility with other tools of the BHA
The EJECTOR tool installed directly above the bit.
It is applicable to be used with PDC or Tricone bits, with all drilling Modes “ Rotary Drilling, Mud Motors, Turbines, RSS …”
There is NO impact on other BHA parts performance including directional tools and sensors.
Guaranteed lifetime is 300 hours. No need to pull out of hole upon reaching 300 hrs. It can be used for another 100 hours.

5. A Sample of The Tornado Tool

6. Advantages of the Ejector
Increases ROP
Increases Bit service life
Tripping Less for bit
replacement
Prevents bit balling
Decrease Mud Additives
Easy to handle

7. Principle of operation
The Ejector
Installed above a bit and RIH as part of BHA
When mud flows downward reaching the Ejector, a small part (20-23 %) of the mud changes its direction from downward to upward.
This action creates negative pressure zone above the Bit.
Receiving suction effect (on the bottom hole below the bit)

8. Hardening of the wellbore

9. Principle of operation
which results in :-
Makes the rock destroying ability of bit more effective.
The cuttings are milled and chipped off easier from the rock.
The cuttings are carried out faster from the bits zone. Hence, no more re-drilling and milling of cuttings.
The Bit is worn-out less and drills for longer time.

10. Principles of the EJECTOR NB
Two principles were used on designing the EJECTOR NB and are responsible for its increased efficiency :
Energy Loss at the Sudden Expansion of Fluid Flow in Confined Space
Intersection of two flows
in conventional Ejectors, the kinetic energy of the jet is converted into the potential energy of pressure, which dramatically reduces their efficiency.
In our EJECTOR tool we use only the kinetic energy of jetting, and therefore there is no energy loss.

11. The EJECTOR’s Operational Limits
Flow rates as standard NB subs.
No restrictions on Press. & Temp
Accepts all mud weights.
WOB, Torque, Tensile and Compressive strengths same as standard NB subs.
Mud intake should not contain solids more than 0.15” in size

12. Selection of Bit Nozzles with EJECTOR Runs
(processing of drilling parameters)
DI uses in house created software for selecting bit nozzles specially for application when the EJECTOR NB is run. The nozzles sizes are selected based on the desired drilling parameters which is fed to the software.
We make the software available for use in field conditions. Of course, the nozzles are selected only for the bit. The EJECTOR has its own fixed nozzles which are not changed.

13. Features of the EJECTOR
- Totally Compatible with any BHA with any Bit “tricone , PDC”
- Available for any bit’s size
- Could be manufactured for any standard by Customer’s request
- No impact on another tool of the BHA

14. List of International Clients
ADCO, UAE
PDO, Oman
AGOCO, Libya
Karasu Operating Company, Azerbaijan
Russia – Gasprom-Burenie, Tatneft, Eurasia Perm Drilling Co., Podsemburgas, etc.
LUKOIL Uzbekistan Operating Co.
ERIELL International Oil Service Group, Uzbekistan
يشتكي

15. Drilling Innovations work
in the MENA area
An EJECTOR job for PDO, Oman.
EJECTOR, Whipstock, curing losses for ADCO, UAE.
EJECTOR jobs in AGOCO, Libya.
Participating in ADIPEC 2008, 2010, 2012
Participating in the 2011 SPE/DGS Annual Technical Symposium and Exhibition, Al-Khobar, KSA.

16. Case Histories in the MENA area
Well
Phase
Bit
Type
ROP Increase
vs. Offset
Remarks
Oman
Yib-516
12 ¼”
PDC
31%.
Bit RR,
one day saved
UAE
BB-904
25%.
----
Libya
L81-65
8 ½”
Tricone
71%.
One bit and
Two days saved
HH100-65
Three bits /
two days saved

17. Case Histories in Russia (drilled with Mud Motors)
CLIENT
No. of wells
Average Offset
ROP m/hr
Avg. Tornado ROP
ROP
Increase
Chernogorskoe 6 72 97
34%
Naryanmar-nefte-gaz 2 40 55
37%
Gazprom Burenie 1 61 83
35%

18. Comparing Results of EJECTOR Application in Libya
Well L81 (with EJECTOR) & well L79 (without)
Depth (ft)
Bit type
Footage (ft)
Hrs
ROP
ROP with EJECTOR application, %
L-79
L-81
GTX-G3 135 GT
212
347 14 16 15
21,0
43,2
240
530 21 12
25,0
120,6
277 40 22 3
12,5
13,3
6,7
CX47MRS 537 83 46 8 6 10
14,3
43,0
175
394
21,5
18,7
133.,8 70
245
18,5 7
13,2
89,2 30
Total:
1087
1602
99,5
85,5
10,9
71,5

19. Application in Oman
Well YIB-512 (standard BHA without EJECTOR) using PDC bit
Bit
Ser. no.
Depth in, ft
Depth out, ft
Footage, ft
Drill, hrs
ROP
IADC Dull grade
DSR619S-I4
222418
4682
8228
3546
94.25
37.6
2-2-HC-A-X-I-WT-TD
Well YIB-516 (with EJECTOR) using PDC bit
Bit
Ser. no.
Depth in, ft
Depth out, ft
Footage, ft
Drill, hrs
ROP
IADC Dull grade
DSR619S-I4
227434
5623
8310
2687 54
49.8
0-0-WT-G-X-I-WT-TD
Conclusion: ROP was increased up to 31.2 %
Bit is suitable for further use (as a new)
Cumulative drilling time was decreased

20. Caliper logs – drilling with and without EJECTOR
Drilling without EJECTOR
Drilling with EJECTOR
Drilling w/out EJECTOR (on the left)
and with EJECTOR on the right).
The jobs were performed on two wells located on same well cluster

21. Accepted by SPE conference
2011 SPE/DGS Annual Technical Symposium and Exhibition
Al-Khobar, Saudi Arabia
SPE Methods of Drilling Rate increase, Near Bit EJECTOR application

22. Results obtained by various EJECTOR applications
The main benefits achieved by using the near bit EJECTOR tool in all the areas drilled were as follows:
- Increased ROP
- Reduced Number of bits
- Decreased Overall drilling time
- Obtained better wellbore condition with no washouts

23. API & ISO certification
Drilling Innovation is ISO & OHSAS certified.
EJECTOR tool connecting threads are cut according to API standard.

24. THANK YOU
for your attention