High-Strength, High-Stability Pill System To Prevent Lost Circulation
- Cheng-yuan Xu (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University) | Yi-li Kang (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University) | Li-jun You (Southwest Petroleum UniversityState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University) | Song Li (Southwest Petroleum UniversityState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University) | Fei Chen (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University)
- Document ID
- Society of Petroleum Engineers
- SPE Drilling & Completion
- Publication Date
- September 2014
- Document Type
- Journal Paper
- 334 - 343
- 2014.Society of Petroleum Engineers
- lost circulation material, plugging strength and stability, physical model, laboratory experiment, lost circulation control
- 3 in the last 30 days
- 627 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 5.00|
|SPE Non-Member Price:||USD 35.00|
A high-strength, high-stability (HSHS) pill system for controlling lost circulation has been developed and optimized on the basis of a physical model of a stable plugged zone. This HSHS pill system provides a stronger and more-effective seal than traditional treatments. Controlling lost circulation with a plugged zone formed with lost-circulation material (LCM) in the fracture has achieved tremendous success in past years. However, investigation into the strength and stability of the plugged zone has not been reported. Lack of such knowledge often leads to excess costs from repeated fluid loss and rig time; it increases the difficulty and complexity of loss-zone diagnosis. The new HSHS pill system addresses these shortcomings. Surface- friction coefficient, LCM volume fraction, and amount of contact deformation are the main influencing factors of the strength and stability of the plugged zone. The strength of the plugged zone is enhanced with the increase of the above factors. A physical model for stable plugged zone is established considering the three factors. The pill system that is based on the model provides an engineered combination of rigid granules, fibers, and resilient particles. The sealing efficiency and the pressure-bearing capacity are greatly enhanced. It was validated in several field trials in west China. Operational practices that facilitate the safe use of the HSHS system with overbalance exceeding 2,174 psi are discussed. In addition to the field-trial results, this paper also describes the laboratory experiments, that were used for developing the new system. With the development of the physical model and the HSHS pill system, it is now possible to optimize and select the types, properties, and matching relations of the LCM. One can also use this technology to guide the design of the wellbore-strengthening scheme and to make sure of the long-term effectiveness of wellbore-strengthening measures.
|File Size||951 KB||Number of Pages||10|
Abrams, A. 1977. Mud Design to Minimize Rock Impairment Due to Particle Invasion. J Pet Technol. 29 (5): 586–593.
Alberty, M.W. and McLean, M.R. 2001. Fracture Gradients in Depleted Reservoirs—Drilling Wells in Late Reservoir Life. Presented at the SPE/IADC Drilling Conference, Amsterdam, The Netherlands, 27 February–1 March. SPE-67740-MS. http://dx.doi.org/10.2118/67740-MS.
Alberty, Mark W. and McLean, Michael R. 2004. A Physical Model for Stress Cages. Presented at the 2004 SPE Annual Technical Conference and Exhibition, Houston, Texas, 26–29 September. SPE-90493-MS. http://dx.doi.org/10.2118/90493-MS.
American Petroleum Institute. 1991. Wordwide Cementing Practices. First edition, January.
Aston, Mark Shelton, Alberty, Mark William, Duncum, Steve D. et al. 2007. A New Treatment for Wellbore Strengthening in Shale. Presented at the SPE Annual Technical Conference and Exhibition, Anaheim, California, 11–14 November. SPE-110713-MS. http://dx.doi.org/10.2118/110713-MS.
Dick A., Heinz J. T., Svoboda F. C. et al. 2000. Optimizing the Selection of Bridging Particles for Reservoir Drilling Fluid. Paper SPE 58793 presented at SPE International Symposium on Formation Damage Control, February 23–24, Lafayette.
Dupriest, Fred E. 2005. Fracture Closure Stress (FCS) and Lost Returns Practices. Presented at the SPE/IADC Drilling Conference, Amsterdam, The Netherlands, 23–25 February. SPE-92192-MS. http://dx.doi.org/10.2118/92192-MS.
Dupriest, Fred E., Smith, Marty V., Zeilinger, Sabine C. et al. 2008. Method to Eliminate Lost Returns and Build Integrity Continuously With High-Filtration-Rate Fluid. Presented at the IADC/SPE Drilling Conference, Orlando, Florida, 4–6 March. SPE-112656-MS. http://dx.doi.org/10.2118/112656-MS.
Goud, Milap Chand and Joseph, Givi. 2006. Drilling Fluid Additives and Engineering to Improve Formation Integrity. Presented at the SPE/IADC Indian Drilling Technology Conference and Exhibition, Mumbai, India, 16–18 October. SPE-104002-MS. http://dx.doi.org/10.2118/104002-MS.
Kang, Y.L., You, L.J., Xu, X. et al. 2012. Prevention of Formation Damage Induced by Mud Lost in Deep Fractured Tight Gas Reservoir in Western Sichuan Basin. J Can Pet Technol 51 (1): 46–51. SPE-131323-PA. http://dx.doi.org/10.2118/131323-PA.
Kumar, A., Savari, S., Whitfill, D.L. et al. 2010. Wellbore Strengthening: The Less-Studied Properties of Lost-Circulation Material. Presented at the SPE Annual Technical Conference and Exhibition, Florence, Italy, 19–22 September. SPE-133484-MS. http://dx.doi.org/10.2118/133484-MS.
Peng, Z., Wang, L.Z., and Jiang, Y.M. Measurement and Analysis of Static Friction Coefficient on a Granule-Solid Interface. J. Shangdong Univ. (Natural Sci.) 46 (1): 42–45.
Sun, Q.C. and Wang, G.Q. 2009. Inroductory Theory of Grannule Matter Mechanics. Beijing, China: China Science Press.
van Oort, Eric, Friedheim, James E., Pierce, Toby et al. 2009. Avoiding Losses in Depleted and Weak Zones by Constantly Strengthening Wellbores. Presented at the SPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, 4–7 October. SPE-125093-MS. http://dx.doi.org/10.2118/125093-MS.
Vickers, Stephen R., Hutton, Alistair Paul, Main, Ryan et al. 2010. Drilling Highly Fractured Limestone Reservoirs: Is It a Particle Bridge Too Far? Presented at the SPE Annual Technical Conference and Exhibition, Florence, Italy, 19–22 September. SPE-134485-MS. http://dx.doi.org/10.2118/134485-MS.
Wang, H., Soliman, Mohamed Y., and Towler, Brian Francis. 2008. Investigation of Factors for Strengthening a Wellbore by Propping Fractures. Presented at the IADC/SPE Drilling Conference, Orlando, Florida, 4–6 March. SPE-112629-MS. http://dx.doi.org/10.2118/112629-MS.
Wordwide Cementing Practices. 1991. First edition, API (January).
Xu, C.Y., Kang, Y.L., and Li, D.Q. 2011. New Progresses on Enhancement of Formation Pressure-bearing Capacity. J. Drill. Fluid & Compl. Fluid 28 (5): 81–85.
You, Lijun and Kang, Yili. 2009. Integrated Evaluation of Water Phase Trapping Damage Potential in Tight Gas Reservoirs. Presented at the SPE European Formation Damage Conference, Scheveningen, The Netherlands, 27–29 May. SPE-122034-MS. http://dx.doi.org/10.2118/122034-MS.