Solids-Free Fluid-Loss Pill for High-Temperature Reservoirs
- Pubudu Gamage (Halliburton) | Jay P. Deville (Halliburton) | John Sherman (National Oilwell Varco)
- Document ID
- Society of Petroleum Engineers
- SPE Drilling & Completion
- Publication Date
- March 2014
- Document Type
- Journal Paper
- 125 - 130
- 2014.Society of Petroleum Engineers
- 3 Production and Well Operations, 2.2.2 Perforating, 1.7.5 Well Control, 5.2 Reservoir Fluid Dynamics, 1.6.9 Coring, Fishing, 1.8 Formation Damage, 4.1.2 Separation and Treating
- high temperature, solids free, fluid loss pill , formation damage
- 5 in the last 30 days
- 523 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 10.00|
|SPE Non-Member Price:||USD 30.00|
The leakage of reservoir fluids into a wellbore during perforation, workover, or other completion operations is a substantial concern, especially in high-temperature wells where existing fluids used to mitigate reservoir-fluid influx offer poor performance. To maintain the hydrostatic integrity of the wellbore during these operations, a thermally stable, solids-free fluid-loss pill has been developed. The pill is composed of synthetic polymers and crosslinkers in monovalent high-density brine. Under ambient-pressure and -temperature conditions, the pill flows as a viscous liquid and remains fluid for more than 6 months. Upon exposure to elevated temperatures (200 to 375°F), the pill crosslinks to form a robust gel that can act as an appropriately weighted, low-fluid-loss pill. This pill can temporarily seal the reservoir, enabling well control during completion operations.Gelled samples of the fluid-loss pill have maintained integrity for up to 3 weeks under high-pressure/high-temperature (HP/HT) conditions in laboratory testing, with minimal signs of collapse. The gel can be readily destroyed with an oxidative breaker providing a substantial reduction in viscosity. At the end of the completion process, the timing of gel removal is completely controlled by the timing of the breaker addition. In addition to gel-stability tests, formation damage caused by the gel and the fluid loss of the pill were assessed by coreflooding experiments by use of Berea core plugs. Average fluid loss over 3 days at 320°F was approximately 50 cm3. Restoration of the Berea core permeability after the treatment exceeded 85% of the initial permeability, with low lift-off pressures observed. This paper presents full laboratory data on the development of the thermally stable, solids-free fluid-loss pill, including gel-stability, fluid-loss, and breaker testing.
|File Size||794 KB||Number of Pages||6|
Al-Muntasheri, G.A., Hussein, I.A., Nasr-El-Din, H.A., et al. 2007. Viscoelastic Properties of a High Temperature Cross-Linked Water Shut-Off Polymeric Gel. J. Pet. Sci. Eng. 55 (1–2): 56–66. http://dx.doi.org/10.1016/j.petrol.2006.04.004.
Al-Muntasheri, G.A., Nasr-El-Din, H.A., and Al-Noaimi, K.R. 2007. A Study of Polyacrylamide-Based Gels Crosslinked with Polyethyleneimine. Paper SPE 105925 presented at the SPE International Symposium on Oilfield Chemistry, Houston, Texas, 28 February–2 March. http://dx.doi.org/10.2118/105925-MS.
Behrmann, L., Chang, F., Fayard, A. et al. 2007. Optimal Fluid Systems for Perforating. Oilfield Rev. 19 (1): 14–25.
Cole, R.K., Ali, S.A. and Foley, K.A. 1995. A New Environmentally Safe Crosslinked Polymer for Fluid-Loss Control. Paper SPE 29525 presented at the SPE Production Operations Symposium, Oklahoma City, Oklahoma, 2–4 April. http://dx.doi.org/10.2118/29525-MS.
Dewprashad, B., Cole, C., Coats, C., et al. 1998. Technique for Fluid-Loss Control and Enhanced Cleanup. Paper SPE 39455 presented at the SPE Formation Damage Control Conference, Lafayette, Louisiana, 18–19 February. http://dx.doi.org/10.2118/39455-MS.
Evans, B. 2003. Fluid Loss Control – Improvement for HTHP Wells. Paper SPE 80946 presented at the SPE Production and Operations Symposium, Oklahoma City, Oklahoma, 23–26 March. http://dx.doi.org/10.2118/80946-MS.
Gamage, P., Deville, J.P. and Sherman, J. 2013. Performance and Formation Damage Assessment of a Novel, Thermally Stable Solids-Free Fluid Loss Gel. Paper SPE 165096 presented at the SPE European Formation Damage Conference and Exhibition, Noordwijk, The Netherlands, 5–7 June. http://dx.doi.org/10.2118/165096-MS.
Harris, P.C. 1993. Chemistry and Rheology of Borate-Crosslinked Fluids at Temperatures to 300°F. J. Pet. Tech. 45 (3): 264–269. http://dx.doi.org/10.2118/24339-PA.
Heilweil, I.J. and Hoskin, D.H. 1989. High Temperature Stable Aqueous Brine Fluids Viscosified by Water-Soluble Copolymers of Acrylamidomethylpropanesulfonic Acid Salts. US Patent No. 4,619,773.
Kabir, A.H. 2001. Chemical Water & Gas Shutoff Technology - An Overview. Paper SPE 72119 presented at the SPE Asia Pacific Improved Oil Recovery Conference, Kuala Lumpur, Malaysia, 6–9 October. http://dx.doi.org/10.2118/72119-MS.
Kesavan, S., Prud’homme, R.K. and Parris, M.D. 1993. Crosslinked Borate HPG Equilibria and Rheological Characterization. Paper SPE 25205 presented at the SPE International Symposium on Oilfield Chemistry, New Orleans, Louisiana, 2–5 March. http://dx.doi.org/10.2118/25205-MS.
Kohler, N. and Zaitoun, A. 1991. Polymer Treatment for Water Control in High-Temperature Production Wells. Paper SPE 21000 presented at the SPE International Symposium on Oilfield Chemistry, Anaheim, California, 20–22 February. http://dx.doi.org/10.2118/21000-MS.
Levitt, D. and Pope, G.A. 2008. Selection and Screening of Polymers for Enhanced Oil Recovery. Paper SPE 113845 presented at the SPE Symposium on Improved Oil Recovery, Tulsa, Oklahoma, 20–23 April. http://dx.doi.org/10.2118/113845-MS.
Moorhouse, R., Harry, D.N., Matthews, L., et al. 1998. Inter-relationships between Polymer/Crosslinker Chemistry and Performance in Fracturing Fluids. Paper SPE 39531 presented at the SPE India Oil and Gas Conference and Exhibition, New Delhi, India, 17–19 February. http://dx.doi.org/10.2118/39531-MS.
Moradi-Araghi, A., Bjornson, G. and Doe, P.H. 1993. Thermally Stable Gels for Near-Wellbore Permeability Contrast Corrections. SPE Advanced Technology Series 1 (1): 140–145. http://dx.doi.org/10.2118/18500-PA.
Moradi-Araghi, A. 2006. A Review of Thermally Stable Gels for Fluid Diversion in Petroleum Production. J. Pet. Sci. Eng. 26 (1–4): 1–10. http://dx.doi.org/10.1016/S0920-4105(00)00015-2.
Nimerick, K.H., Temple, H.L. and Card, R.J. 1997. New pH-Buffered Low Polymer Borate Crosslinked Fluids for Hydraulic Fracturing. SPE J. 2 (2): 150–156. http://dx.doi.org/10.2118/35638-PA.
Prada, A., Civan, F. and Dalrymple, D. 2000. Evaluation of Gelation Systems for Conformance Control. Paper SPE 59322 presented at the SPE/DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, 3–5 April. http://dx.doi.org/10.2118/59322-MS.
Ross, C.M., Williford, J. and Sanders, M.W. 1999. Current Materials and Devices for Control of Fluid Loss. Paper SPE 54323 presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, Jakarta, Indonesia, 20–22 April. http://dx.doi.org/10.2118/54323-MS.
Ryles, R.G. 1988. Chemical Stability Limits of Water-Soluble Polymers Used in Oil Recovery Processes. SPE Res Eng 3 (1): 23–34. http://dx.doi.org/10.2118/13585-PA.
Seright, R.S., Campbell, A.R. and Moxley, P.S. 2009. Stability of Partially Hydrolyzed Polyacrylamides at Elevated Temperatures in the Absence of Divalent Cations. Paper SPE 121460 presented at the SPE International Symposium on Oilfield Chemistry, The Woodlands, Texas, 20–22 April. http://dx.doi.org/10.2118/121460-MS.
Shupe, R.D. 1981. Chemical Stability of Polyacryamide Polymers. J. Pet. Tech. 33 (8): 1513–1529. http://dx.doi.org/10.2118/9299-PA.
Vossoughi, S. 2000. Profile Modification using In Situ Gelation Technology – A Review. J. Pet. Sci. Eng. 26 (1–4): 199–209. http://dx.doi.org/10.1016/S0920-4105(00)00034-6.
Wang, X., Qu, Q., Steven, R., et al. 2006. Factors Controlling the Proper Design of Effective Insulation Fluids for Oilfield Applications. Paper SPE 103132 presented at the SPE Annual Technical Conference and Exhibition, San Antonio, Texas, 24–27 September. http://dx.doi.org/10.2118/103132-MS.
Weaver, J., Gdanski, R. and Karcher, A. 2003. Guar Gum Degradation: A Kinetic Study. Paper SPE 80226 presented at the International Symposium on Oilfield Chemistry, Houston, Texas, 5–7 February. http://dx.doi.org/10.2118/80226-MS.
Weaver, J., Schmetzl, M. and Schiffner, G. 2002. New Fluid Technology Allows Fracturing Without Internal Breakers. Paper SPE 75690 presented at the SPE Gas Technology Symposium, Calgary, Alberta, Canada, 30 April–2 May. http://dx.doi.org/10.2118/75690-MS.