Should Sand be Excluded from Well Production? (B-FSM002)
Exclusion Methodology focuses on preventing
sand from flowing into the wellbore – then to the surface. However, these
controls come with a cost.
Quadrant 1: Production Limits
Goal: To reduce oil and gas production to
sand free production rate
- Easy to implement – however
results in immediate reduction of hydrocarbon flow
- Sand production map is moving
target (requires frequent monitoring/adjustment)
- Use sand monitoring/measurement
probes and sampling
- If choke too much then lost
production, If choke to little then sand in separator
- CAPEX: Low | OPEX: Low |
Production: Large Decrease
Quadrant 2: Downhole Equipment
Goal: Prevent sand ingress from reservoir
to wellbore tubulars
- Use Completion design and technology
- Widely studied, accepted, and
- May introduce formation/skin
damage and reduce inflow
- Does protect mechanical
stability of well area
- Eventual mechanical failure
- Can be very expensive to replace,
especially in deepwater
- CAPEX: Medium-High | OPEX: Low
| Production: Small Decrease
What if sand were allowed to flow instead
of being choked back? It is possible that more oil can be produced with a lower
total well cost.
- Andrews, J., Kjørholt, H., and
Jøranson, H. 2005. Production Enhancement from Sand Management Philosophy. A
Case Study from Statfjord and Gulfaks. Paper 94511 presented at the SPE
6th European Formation Damage Conference, Scheveningen, The Netherlands, 25-27
- Fadillah, P.M., Ahmad, P.H.,
Ward, M. et al. 2004. Gecko Wells: Bringing Sand to Surface, a Change in Well
Design Philosophy. Paper 87956 presented at the IADC/SPE Asia Pacific Drilling
Technology Conference and Exhibition. Kuala Lumpur, Malaysia, 13-15 September.
- Geilikman, M.B., Dusseault,
M.B., and Dullien, F.A. 1994. Fluid Production Enhancement by Exploiting Sand
Production. Paper 27797 presented at the SPE/DOE Improved Oil Recovery
Symposium. Tulsa, Oklahoma, 17-20 April.
- Guinot, F., Douglass, S.,
Duncan, J. et al. 2009. Sand Exclusion and Management in the Okwori Subsea Oil
Field, Nigeria. Paper 106294 in SPE Drilling & Completion 24 (1):
- Kaura, J.D., Macrae, A., and
Mennie, D. 2001. Clean up and Well Testing Operations in High-Rate Gas-Condensate
Field Result in Improved Sand Management System. Paper 68747 presented at the
SPE Asia Pacific Oil and Gas Conference and Exhibition. Jakarta, Indonesia,
- Sanfilippo, F., Brignoli, M.,
Giacca, D. et al. 1997. Sand Production: From Prediction to Management. Paper
38185 presented at the SPE European Formation Damage Conference. The Hague,
Netherlands, 2-3 June.
- Selfridge, F., Munday, M.,
Kvernvold, O. et al. 2003. Safely Improving Production Performance through
Improved Sand Management. Paper 83979 presented at the Offshore Europe.
Aberdeen, UK, 2-5 September.
- Vaziri, H.H., Lemoine, E.,
Palmer, I.D. et al. 2000. How Can Sand Production Yield a Several-Fold Increase
in Productivity: Experimental and Field Data. Paper 63235 presented at the SPE
Annual Technical Conference and Exhibition. Dallas, TX, 1-4 October.