Design of a Cyclonic-Jetting and Slurry-Transport System for Separators
- C. Hank Rawlins (eProcess Technologies)
- Document ID
- Society of Petroleum Engineers
- Oil and Gas Facilities
- Publication Date
- February 2016
- Document Type
- Journal Paper
- 38 - 46
- 2016.Society of Petroleum Engineers
- jetting, sand, cyclone, desander, separator
- 1 in the last 30 days
- 190 since 2007
- Show more detail
- View rights & permissions
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Sand and solids are removed from production separators either off line (shut down for physical removal) or on line by use of jetting systems. Traditional jetting designs use spray nozzles to fluidize and push the sand toward a covered outlet to evacuate the solids from the vessel. Cyclonic-jetting technology combines the fluidization and evacuation functions into a single, compact device. On the basis of a hydrocyclonic platform, this technology converts jetting spray water into shielded vortex flow that fluidizes sand in a circular zone without disturbing the oil/water interface.
Total solids removal is primarily a function of set height, spray flow, and spacing. A single unit was optimized at a set height of 10 cm (4 in.) with spray pressure of 0.7 barg (11 psig) to provide an area of influence of 1.1 m2 (12.0 ft2) with 28 cm (11 in.) of sandbed depth. Placing two units in parallel with overlap of their affected zones reduces the "egg-carton" effect associated with this technology; however, optimum operation, in terms of total sand removed, occurs when the units do not overlap. Slurry at up to 60 wt% solids is transported from the jetting system to the handling equipment. The boundary design conditions for slurry transport are erosion velocity (upper limit) and particle-transport velocity (lower limit). By use of published models, the piping design for four-unit cluster of cyclonic-jetting devices was validated at 5.0-cm (2-in.) nominal size. Integration and operation of a jetting system with transport, dewatering, and disposal stages of facilities sand management are presented as guidelines for system design.
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Ahmad, F., Ward, M., and Fisher, A. 2004. Gecko Wells: Bringing Sand to Surface, A Change in Well Design Philosophy. Presented at the IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, Kuala Lumpur, Malaysia, 13–15 September. SPE-87956-MS. http://dx.doi.org/10.2118/87956-MS.
Alexander, J. L. D. 1975. Automatic Discharge Regulator. US Patent Number 3,923,201.
Andrews, J. S., Kjørholt, H., and Jøranson, H. 2005. Production Enhancement From Sand Management Philosophy. A Case Study from Statfjord and Gullfaks. Presented at the SPE European Formation Damage Conference, Sheveningen, The Netherlands, 25–27 May. SPE-94511-MS. http://dx.doi.org/10.2118/94511-MS.
API Publication 421, Monographs on Refinery Environmental Control—Management of Water Discharges: Design and Operation of Oil–Water Separators, first edition. 1990. Washington, DC: American Petroleum Institute.
API RP 14E, Recommended Practice for Design and Installation of Offshore Production Platform Piping Systems, fifth edition. 1991. Washington, DC: American Petroleum Institute.
Arnold, K. and Stewart, M. 1986. Surface Production Operations Vol. 1, Design of Oil-Handling Systems and Facilities. Houston: Gulf Publishing Company.
ASME B31.11, Slurry Transportation Piping Systems, second edition. 2002. West Conshohocken, Pennsylvania: American Society of Mechanical Engineers.
Bretney, E. 1891. Water Purifier. US Patent Number 453,105.
Chin, R. W. 2007. Oil and Gas Separators. In Petroleum Engineering Handbook, Volume III, Facilities and Construction Engineering, ed. K. Arnold, Chapter 2, 33–35. Richardson, Texas: SPE.
Coffee, S. D. 2008. New Approach to Sand Removal. Presented at the Offshore Technology Conference, Houston, 5–8 May. OTC-19465-MS. http://dx.doi.org/10.4043/19465-MS.
Fantoft, R., Hendriks, T., and Chin, R. 2004. Compact Subsea Separation System With Integrated Sand Handling. Presented at the Offshore Technology Conference, Houston, 3–6 May. OTC-16412-MS. http://dx.doi.org/10.4043/16412-MS.
Gas Processors Suppliers Association. 2004. Engineering Data, 12th Edition, Volume 1. Tulsa, Oklahoma: GPSA.
Geilikman, M. B., Dusseault, M. B., and Dullien, F. A. 1994. Fluids Production Enhancement by Exploiting Sand Production. Presented at the SPE/DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, USA, 17–20 April. SPE-27797-MS. http://dx.doi.org/10.2118/27797-MS.
Govier, G. W. and Aziz, K. 1977. The Flow of Complex Mixtures in Pipes. Huntington, New York: R.E. Krieger Publishing Company.
Green, D. W. and Perry, R. H. 2008. Perry’s Chemical Engineers’ Handbook, eighth edition. New York: The McGraw-Hill Companies, Inc.
Jasmani, M. S., Geronimo, E. C., and Chan, L. 2006. Installation of Online Vessel Desander Manifold. Presented at the SPE Annual Technical Conference and Exhibition, San Antonio, Texas, USA, 24–27 September. SPE-101575-MS. http://dx.doi.org/10.2118/101575-MS.
McKay, I., Russ, P. R., and Mohr, J. W. 2008. A Sand Management System for Mature Offshore Production Facilities. Presented at the International Petroleum Technology Conference, Kuala Lumpur, Malaysia, 3–5 December. IPTC-12784-MS. http://dx.doi.org/10.2523/12784-MS.
McLaury, B. S. and Shirazi. S. A. 1999. Generalization of API RP 14E for Erosive Service in Multiphase Production. Presented at the SPE Annual Technical Conference and Exhibition, Houston, 3–6 October. SPE-56812-MS. http://dx.doi.org/10.2118/56812-MS.
NORSOK STANDARD P-100, Process Systems, Rev. 2. 2001. Oslo, Norway: Norwegian Technology Centre.
Plitt, L. R. 1976. A Mathematical Model of the Hydrocyclone Classifier. CIM Bulletin 69 (776): 114–123.
Poirier, M. R. 2000. Minimum Velocity Required to Transport Solids Particles from the 2H-Evaporator to the Tank Farm. Report Number WSRC-TR-2000-00263, Westinghouse Savannah River Company, Aiken, South Carolina. http://dx.doi.org/10.2172/764657.
Priestman, G. H., Tippetts, J. R., and Dick, D. R. 1996. The Design and Operation of Oil-Gas Production Separator Desanding Systems. Chemical Engineering Research & Design 74 (A2): 166–176.
Rawlins, C. H. 2013. Sand Management Methodologies for Sustained Facilities Operations. Presented at the SPE North Africa Technical Conference and Exhibition, Cairo, Egypt, 15–17 April. SPE-164645-MS. http://dx.doi.org/10.2118/164645-MS.
Rawlins, H. and Costin, J. 2014. Study on the Interaction of a Flooded Core Hydrocyclone (Desander) and Accumulation Chamber for Separation of Solids from Produced Water. Presented at the Produced Water Society Annual Seminar, Houston, 14–16 January. http://www.eprocessint.com/PWS2014_Rawlins_DesanderStudyR.pdf.
Rawlins, C. H., Staten, S. E., and Wang, I. I. 2000. Design and Installation of a Sand Separation and Handling System for a Gulf of Mexico Oil Production Facility. Presented at the SPE Annual Technical Conference and Exhibition, Dallas, Texas, 1–4 October. SPE-63041-MS. http://dx.doi.org/10.2118/63041-MS.
Shell Global Solutions International (Shell GSI). 2008. Liquid/Liquid and Gas/Liquid/Liquid Separators—Type Selection and Design
Rules. Design and Engineering Practive number DEP 31.22.05.12-Gen, Shell Global Solutions International, The Netherlands (January 2008).
Svarovsky, L. 1984. Hydrocyclones. Lancaster, Pennsylvania: Technomic Publishing Co.
Tronvoll, J., Dusseault, M. B., Sanfilippo, F. et al. 2001. The Tools of Sand Management. Presented at the SPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, 30 September–3 October. SPE-71673-MS. http://dx.doi.org/10.2118/71673-MS.
Wilson, K. C., Addie, G. R., Sellgren, A. et al. 2006. Slurry Transport Using Centrifugal Pumps, third edition. New York, New York: Springer.