New Standard for Evaluating Casing Connections for Thermal-Well Applications
- Jaroslaw Nowinka (Noetic Engineering Inc.) | Daniel Dall'Acqua (Noetic Engineering Inc.)
- Document ID
- Society of Petroleum Engineers
- SPE Drilling & Completion
- Publication Date
- September 2011
- Document Type
- Journal Paper
- 419 - 431
- 2011. Society of Petroleum Engineers
- 4.3.4 Scale
- Drilling and Completions, Casing connections, Thermal wells, Extreme service, Evaluation standard
- 2 in the last 30 days
- 733 since 2007
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Casing connections in thermal wells experience extreme loads owing to exposure to high temperatures ranging as high as 200 to 350°C, stresses exceeding the elastic limit, and cyclic plastic deformation. To date, no standard procedure has been adopted by the industry to qualify casing connections for such conditions. In particular, the existing evaluation standard International Organization for Standardization (ISO) 13679/API 5C5 (ISO 2002) does not apply to tubular loads beyond pipe body yield and temperatures above 180°C. Proprietary procedures have been used to qualify connections for individual thermal operations, but none of those has been accepted as an industry standard.
This paper introduces a new protocol for evaluating casing connections for thermal applications: Thermal Well Casing Connection Evaluation Protocol (TWCCEP). While founded on long-standing work in the thermal-well arena, TWCCEP was developed through a multiclient project sponsored by several major operators and connection manufacturers. Following project completion, TWCCEP was released to the public domain and submitted to ISO for adoption as an international standard.
TWCCEP uses both analytical and experimental procedures to assess performance of a candidate connection under conditions typical of service in thermally stimulated wells. The objective of the analytical component is to assess sensitivities of the candidate connection to selected design variables, and identify worst-case combinations of those variables for configuration of specimens for physical testing. The purpose of the physical testing is to verify performance of the connection specimens under assembly-and-loading conditions simulating thermal-well service.
In addition to an overview of TWCCEP, this paper illustrates how engineering analysis, numerical simulation, and reduced-scale physical testing were used to examine the impacts of various design and loading variables on connection strength and sealability, and subsequently to formulate the analysis-and-test matrix prescribed in the TWCCEP evaluation procedure.
Adoption and consistent use of TWCCEP is expected to increase operational reliability and decrease failure potential of casing strings in thermal wells. Learnings from the protocol development process will also help in the formulation of guidelines for connection requalification for thermal applications, in cases when one or more of the design variables change.
|File Size||463 KB||Number of Pages||13|
Bradley, A.B., Nagasaku, S., and Verger, E. 2005. Premium ConnectionDesign, Testing, and Installation for HP/HT Sour Wells. Paper SPE 97585presented at the SPE High Pressure/High Temperature Sour Well Design AppliedTechnology Workshop, The Woodlands, Texas, USA, 17-19 May. http://dx.doi.org/10.2118/97585-MS.
Carcagno, G. 2005. The Design of Tubing and Casing PremiumConnections for HTHP Wells. Paper SPE 97584 presented at the SPE HighPressure/High Temperature Sour Well Design Applied Technology Workshop, TheWoodlands, Texas, USA, 17-19 May. http://dx.doi.org/10.2118/97584-MS.
Dall'Acqua, D., Smith, D.T., and Kaiser, T.M.V. 2005a.Post-Yield Thermal Design Basis for Slotted Liner. Paper SPE 97777 presented atthe SPE/PS-CIM/CHOA International Thermal Operations and Heavy Oil Symposium,Calgary, 1-3 November. http://dx.doi.org/10.2118/97777-MS.
Dall'Acqua, D., Smith, D.T., and Kaiser, T.M.V. 2005b.Thermo-Plastic Properties of OCTG in a SAGD Application. Paper SPE 97776presented at the SPE/PS-CIM/CHOA International Thermal Operations and Heavy OilSymposium, Calgary, 1-3 November. http://dx.doi.org/10.2118/97776-MS.
Energy Resources Conservation Board (ERCB). 2007. Casingfailure database. Public domain data, EUB Information Services, Calgary,Alberta, Canada.
Hilbert, L.B. Jr. and Kalil, I.A. 1992. Evaluation of PremiumThreaded Connections Using Finite-Element Analysis and Full-Scale Testing.Paper SPE 23904 presented at the SPE/IADC Drilling Conference, New Orleans,18-21 February. http://dx.doi.org/10.2118/23904-MS.
IRP Volume 3--Heavy Oil and Oil Sands Operations. 2002. Calgary,Alberta, Canada: DACC/Enform.
ISO 13679:2002, Petroleum and natural gasindustries--Procedures for testing casing and tubing connections. 2002.Geneva, Switzerland: ISO.
Jellison, M.J. and Brock, J.N. 2000. The Impact of Compression Forces onCasing-String Designs and Connectors. SPE Drill & Compl 15 (4): 241-248. SPE-67608-MS. http://dx.doi.org/10.2118/67608-PA.
Jellison, M.J. and Davila, M.A. 1996. How to Evaluate andSelect Premium Casing Connectors. Paper SPE 35037 presented at the SPE/IADCDrilling Conference, New Orleans, 12-15 March http://dx.doi.org/10.2118/35037-MS.
Kaiser, T.M.V. 2005. Post-Yield Material Characterization forThermal Well Design. Paper SPE 97730 presented at the SPE/PS-CIM/CHOAInternational Thermal Operations and Heavy Oil Symposium, Calgary, 1-3November. http://dx.doi.org/10.2118/97730-MS.
Kaiser, T.M.V., Yung, V.Y.B., and Bacon, R.M. 2005.Cyclic Mechanical and Fatigue Properties for OCTG Materials. Paper SPE 97775presented at the SPE/PS-CIM/CHOA International Thermal Operations and Heavy OilSymposium, Calgary, 1-3 November http://dx.doi.org/10.2118/97775-MS.
Kwon, Y.W., Klementich, E.F., and Ko, K.I. 1990. An Efficient and AccurateModel for the Structural Analysis of Threaded Tubular Connections. SPE ProdEng 5 (3): 261-264. SPE-18057-PA.http://dx.doi.org/10.2118/18057-PA.
Lepper, G.B. 1998. Production Casing Performance In a ThermalField. J Can Pet Technol 37 (9). JCPT Paper No. 98-09-05.http://dx.doi.org/10.2118/98-09-05.
Maharaj, G. 1996. Thermal Well Casing Failure Analysis. PaperSPE 36143 presented at the SPE Latin America/Caribbean Petroleum EngineeringConference, Port-of-Spain, Trinidad, 23-26 April. http://dx.doi.org/10.2118/36143-MS.
Maruyama, K., Tsuru, E., Ogasawara, M., Inoue, Y. , and Peters, E.J.1990. An Experimental Study of Casing Performance Under Thermal CyclingConditions. SPE Drill Eng 5 (2): 156-164. SPE-18776-PA. http://dx.doi.org/10.2118/18776-PA.
Nowinka, J., Kaiser, T., and Lepper, B. 2007. Strain-Based Design ofTubulars for Extreme-Service Wells. SPE Drill & Compl 23 (4): 353-360. SPE-105717-PA. http://dx.doi.org/10.2118/105717-PA.
Nowinka, J., Xie, J., Kis, P., Hensley, R., and Gonzales, M. 2005.Challenges of Qualifying Tubular Connections for HPHT Service. Paper SPE97586-PT presented at the SPE High Pressure/High Temperature Sour Well DesignApplied Technology Workshop, The Woodlands, Texas, USA. http://dx.doi.org/10.2118/97586-PT.
Payne, M.L. and Schwind, B.E. 1999. A New International Standard forCasing/Tubing Connection Testing. Paper SPE 52846 presented at the SPE/IADCDrilling Conference, Amsterdam, 9-11 March. http://dx.doi.org/10.2118/52846-MS.
Payne, M.L., Asbill, W.T., Davis, H.L., and Patillo, P.D. 1992. JointIndustry Qualification Test Program for High Clearance Casing Connections.SPE Drill Eng 7 (4): 261-267. SPE-21908-PA. http://dx.doi.org/10.2118/21908-PA.
Placido, J.C.R., Ademar Jr., P., Paulo, L.A.B.F., Pasqualino,I.P., and Estefen, S.F. 1997. Stress-Analysis of Casing String Submittedto Cyclic Steam Injection. Paper SPE 38978 presented at the Latin American andCaribbean Petroleum Engineering Conference, Rio de Janeiro, 30 August-3September. http://dx.doi.org/10.2118/38978-MS.
Powers, J.P., Baker, D., and Chelf, M.S. 2008.Application of Connection Product Line Evaluation. Paper SPE 112639 presentedat the IADC/SPE Drilling Conference, Orlando, Florida, USA, 4-6 March. http://dx.doi.org/10.2118/112639-MS.
Schwind, B.E. 1998. Mobil Qualifies Three Tubing/CasingConnection Product Lines. Hart's Petroleum Engineer International(November): 59-62.
Valigura, G.A. and Cernocky, P. 2005. Shell Exploration andProduction Company List of Connections Tested for Well Service Pressures>8000 psi Based on Standardized API/ISO Qualification Testing Procedures.Paper SPE 97605 presented at the SPE High Pressure/High Temperature Sour WellDesign Applied Technology Workshop, The Woodlands, Texas, USA, 17-19 May. http://dx.doi.org/10.2118/97605-MS.
Wu, J., Gonzalez, M.E., and Hosn, N.A. 2005.Steam-Injection Casing Design. Paper SPE 93833 presented at the SPE WesternRegional Meeting, Irvine, California, USA, 30 March-01 April. http://dx.doi.org/10.2118/93833-MS.
Wu, J., Knauss, M.E. , and Kritzler, T. 2008. CasingFailures in Cyclic Steam Injection Wells. Paper SPE 114231 presented at theIADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, Jakarta,25-27 August. http://dx.doi.org/10.2118/114231-MS.
Xie, J. 2006. Casing Design and Analysis for Heavy Oil Wells.Paper 2006-415 presented at the World Heavy Oil Conference, Beijing, 12-15November.
Xie, J. and Wagg, B. 2006. Casing Deformations in Thermal Wells.Technologies for Thermal Heavy Oil and Bitumen Recovery and Production. Paperpresented at the SPE Applied Technology Workshop: Technologies for ThermalHeavy Oil and Bitumen Recovery and Production, Calgary, 14-15 March.