Problems and prospects of using hydro-ejector mixers in the preparation of drilling fluids and process liquids

UDK: 622.244.4.06
DOI: 10.24887/0028-2448-2020-11-112-114
Key words: jet mixer, ejection coefficient, mixing chamber, hydraulic seal, homogenization, pneumatic transport
Authors: I.A. Pakhlyan (Kuban State Technological University, RF, Armavir)

The quality of drilling muds and processing fluids directly affects the construction rate, lifespan and the workover operation efficiency of wells. Jet mixers (JM) are used for mixing and primary dispersion of components - they are simple, reliable and manufacturable. Long-term experience in drilling, development and workover operations has shown that JM designs are far from perfection. There is quite often the week ejection, the unstable transport of materials to the mixing chamber, the material wetting in the hopper, and the involvement of a large amount of air in fluids. So the task of improving the JM design and technology is relevant and economically sound. It is shown, that JM improvement is possible if the scale model experiment is completed correctly and by the creating an adequate equation for the JM characteristic as a water-air jet apparatus and taking into account the actual ejection in real conditions of pneumatic transport of powdery material at the JM inlet. When performing the work, we used an analysis of the open information flow based on the existing theory of jet devices, the results of our own experimental studies, the field experience in the operation of mud preparation units, the factory experience in the processing fluids equipment design.

References

1. Bridges S., Robinson L., A practical handbook for drilling fluids processing, Gulf Professional Publishing, 2020, 622 p.

2. Bulatov A.I., Makarenko P.P., Proselkov Yu.M., Burovye promyvochnye i tamponazhnye rastvory (Drill mud and cement slurry), Moscow: Nedra Publ., 1999, 424 p.

3. Sokolov E. Ya., Zinger N.M., Struynye apparaty (Inkjet devices), Moscow: Energoatomizdat Publ., 1989, 352 p.

4. Pakhlyan I.A., Grounds of designing of jet devices to be used in oil and gas industry (In Russ.), Neftepromyslovoe delo, 2012, no. 12, pp. 15–17.

5. Pakhlyan I.A., Proselkov Yu.M., Selection of the main design parameters of jet devices for oil and gas industry technologies (In Russ.), Gazovaya promyshlennost', 2013, no. 12, pp. 53–56.

6. Pakhlyan I.A., Improvement of hydro-jet mixers for the preparation of drilling flushing and grouting solutions (In Russ.), Gazovaya promyshlennost', 2015, no. 11, pp. 88–91. 

7. Pakhlyan I.A., Issledovanie gidroezhektornykh smesiteley, modernizatsiya ikh konstruktsiy i sovershenstvovanie tekhnologii prigotovleniya burovykh promyvochnykh i tamponazhnykh rastvorov (Investigation of hydro-jet mixers, modernization of their designs and improvement of the technology for the preparation of drilling flushing and grouting solutions): thesis of candidate of technical science, Krasnodar, 2010.

8. Proselkov Yu.M., Pakhlyan I.A., On the modernization of hydro ejector mixers based on model studies (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2010, no. 4, pp. 115–119. 

9. Proselkov Yu.M., Pakhlyan I.A., Mishchenko S.V., Progressive technological schemes of cement slurries preparation (In Russ.), Oborudovanie i tekhnologii dlya neftegazovogo kompleksa, 2013, no. 4, pp. 37–46. 

10. Patent RU 2442686 C1, Jet blender, Inventors: Proselkov Yu.M., Pakhlyan I.A.

11. Mishchenko S.V., Pakhlyan I.A., Proselkov Yu.M., The research of vacuum pneumatic transport performance of portland cement (In Russ.), Burenie i neft', 2011, no. 10, pp. 28–31. 

12. Pakhlyan I.A., Proselkov Yu.M., Definition of the operating range of the main performances of vacuum pneumotransport of powdery materials (In Russ.), Stroitel'stvo neftyanykh i gazovykh skvazhin na sushe i na more, 2010, no. 6, pp. 43–46. 

13. Patent RU 2499878 C1, Preparation method of drilling washing solutions and grouting mortars, and device for its implementation, Inventors: Mishchenko S.V. Pakhlyan I.A. Proselkov Yu.M.

14. Utility patent no. 123344 RF, Ustroystvo dlya  dozirovannogo smeshivaniya sypuchego materiala s zhidkost'yu (Device for dosed mixing of bulk material with liquid), Inventors:  Proselkov Yu.M., Pakhlyan I.A., Mishchenko S.V.

15. Baumgarten C., Mixture formation in internal combustion engines, Berlin Heidelberg: Springer-Verlag, 2006, 294 p.

The quality of drilling muds and processing fluids directly affects the construction rate, lifespan and the workover operation efficiency of wells. Jet mixers (JM) are used for mixing and primary dispersion of components - they are simple, reliable and manufacturable. Long-term experience in drilling, development and workover operations has shown that JM designs are far from perfection. There is quite often the week ejection, the unstable transport of materials to the mixing chamber, the material wetting in the hopper, and the involvement of a large amount of air in fluids. So the task of improving the JM design and technology is relevant and economically sound. It is shown, that JM improvement is possible if the scale model experiment is completed correctly and by the creating an adequate equation for the JM characteristic as a water-air jet apparatus and taking into account the actual ejection in real conditions of pneumatic transport of powdery material at the JM inlet. When performing the work, we used an analysis of the open information flow based on the existing theory of jet devices, the results of our own experimental studies, the field experience in the operation of mud preparation units, the factory experience in the processing fluids equipment design.

References

1. Bridges S., Robinson L., A practical handbook for drilling fluids processing, Gulf Professional Publishing, 2020, 622 p.

2. Bulatov A.I., Makarenko P.P., Proselkov Yu.M., Burovye promyvochnye i tamponazhnye rastvory (Drill mud and cement slurry), Moscow: Nedra Publ., 1999, 424 p.

3. Sokolov E. Ya., Zinger N.M., Struynye apparaty (Inkjet devices), Moscow: Energoatomizdat Publ., 1989, 352 p.

4. Pakhlyan I.A., Grounds of designing of jet devices to be used in oil and gas industry (In Russ.), Neftepromyslovoe delo, 2012, no. 12, pp. 15–17.

5. Pakhlyan I.A., Proselkov Yu.M., Selection of the main design parameters of jet devices for oil and gas industry technologies (In Russ.), Gazovaya promyshlennost', 2013, no. 12, pp. 53–56.

6. Pakhlyan I.A., Improvement of hydro-jet mixers for the preparation of drilling flushing and grouting solutions (In Russ.), Gazovaya promyshlennost', 2015, no. 11, pp. 88–91. 

7. Pakhlyan I.A., Issledovanie gidroezhektornykh smesiteley, modernizatsiya ikh konstruktsiy i sovershenstvovanie tekhnologii prigotovleniya burovykh promyvochnykh i tamponazhnykh rastvorov (Investigation of hydro-jet mixers, modernization of their designs and improvement of the technology for the preparation of drilling flushing and grouting solutions): thesis of candidate of technical science, Krasnodar, 2010.

8. Proselkov Yu.M., Pakhlyan I.A., On the modernization of hydro ejector mixers based on model studies (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2010, no. 4, pp. 115–119. 

9. Proselkov Yu.M., Pakhlyan I.A., Mishchenko S.V., Progressive technological schemes of cement slurries preparation (In Russ.), Oborudovanie i tekhnologii dlya neftegazovogo kompleksa, 2013, no. 4, pp. 37–46. 

10. Patent RU 2442686 C1, Jet blender, Inventors: Proselkov Yu.M., Pakhlyan I.A.

11. Mishchenko S.V., Pakhlyan I.A., Proselkov Yu.M., The research of vacuum pneumatic transport performance of portland cement (In Russ.), Burenie i neft', 2011, no. 10, pp. 28–31. 

12. Pakhlyan I.A., Proselkov Yu.M., Definition of the operating range of the main performances of vacuum pneumotransport of powdery materials (In Russ.), Stroitel'stvo neftyanykh i gazovykh skvazhin na sushe i na more, 2010, no. 6, pp. 43–46. 

13. Patent RU 2499878 C1, Preparation method of drilling washing solutions and grouting mortars, and device for its implementation, Inventors: Mishchenko S.V. Pakhlyan I.A. Proselkov Yu.M.

14. Utility patent no. 123344 RF, Ustroystvo dlya  dozirovannogo smeshivaniya sypuchego materiala s zhidkost'yu (Device for dosed mixing of bulk material with liquid), Inventors:  Proselkov Yu.M., Pakhlyan I.A., Mishchenko S.V.

15. Baumgarten C., Mixture formation in internal combustion engines, Berlin Heidelberg: Springer-Verlag, 2006, 294 p.


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