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The EJECTOR Near-Bit

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

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The EJECTOR Near-Bit

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

  2. 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

  3. 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.

  4. A Sample of The Tornado Tool

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

  6. 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)

  7. Hardening of the wellbore

  8. 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.

  9. 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 thejet is converted into the potential energy of pressure, which dramatically reduces their efficiency. • In our EJECTOR toolwe use only the kineticenergyof jetting, and thereforethere isnoenergyloss.

  10. 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

  11. 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.

  12. 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

  13. 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

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

  15. Case Histories in the MENA area

  16. Case Histories in Russia (drilled with Mud Motors)

  17. Comparing Resultsof EJECTOR Applicationin Libya Well L81 (with EJECTOR) & well L79 (without)

  18. Applicationin Oman Well YIB-512 (standard BHA without EJECTOR) using PDC bit Well YIB-516 (with EJECTOR) using PDC bit Conclusion: ROP was increased up to 31.2 % Bit is suitable for further use (as a new) Cumulative drilling time was decreased

  19. Drilling without EJECTOR Drilling with EJECTOR Caliper logs –drilling with and without 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

  20. Accepted by SPE conference 2011 SPE/DGS Annual Technical Symposium and Exhibition Al-Khobar, Saudi Arabia SPE 149113. Methods of Drilling Rate increase, Near Bit EJECTOR application

  21. 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 conditionwith no washouts

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

  23. THANK YOU for your attention

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