Analysis of Sandface Temperature Transient Data Under Specified Rate or Bottomhole Pressure Production from a No-Flow Composite Radial Reservoir System
- Tasansu Ozdogan (The University of Tulsa and Turkish Petroleum Corporation) | Mustafa Onur (The University of Tulsa)
- Document ID
- Society of Petroleum Engineers
- SPE Europec featured at 81st EAGE Conference and Exhibition, 3-6 June, London, England, UK
- Publication Date
- Document Type
- Conference Paper
- 2019. Society of Petroleum Engineers
- New Semi-Analytical Solutions, Analysis Procedures, Composite Radial System, Temperature Transient Data, Constant Pressure Production, No-Flow Reservoir Boundary
- 30 in the last 30 days
- 60 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 8.50|
|SPE Non-Member Price:||USD 25.00|
The paper provides analytical and semi-analytical solutions to predict the temperature transient behavior of a vertical well producing slightly compressible fluid under specified constant-bottom-hole pressure or rate in a two zone, radial composite no-flow reservoir system, where the inner zone could represent the skin zone, whereas the outer zone represents non-skin zone. The solutions are obtained by solving the decoupled isothermal diffusivity equation for pressure and thermal energy balance equation for temperature for the inner and outer zones by using the finite-difference and Laplace transformation. They be used to simulate temperature transient behavior for the general cases of specified variable bottom-hole or rate production represented by piecewise constants in specified time intervals. The convection, conduction, transient adiabatic expansion and Joule-Thomson heating effects are all considered in solving the temperature equation. Graphical analysis procedures for analyzing such temperature transient data jointly with pressure or rate transient data are also discussed. The results show that sandface temperature first decreases due to adiabatic expansion and then increases due to Joule-Thomson heating for both constant rate and constant bottomhole pressure production cases during infinite-acting flow. During boundary dominated flow, sandface temperature decreases linearly with time due to pore-volume expansion of the fluid over the entire no-flow reservoir system. The time rate of decline is governed by the ratio of the adiabatic-expansion coefficient of the fluid to the volumetric heat capacity of the saturated medium and the pore volume. However, these flow regimes are not well-defined for the constant bottomhole production case because the sandface rate decreases continuously during the infinite-acting radial flow and boundary dominated flow periods and distorts the flow regimes which are well defined on the temperature behavior if the well were produced at a constant rate. Sandface temperature data under specified variable rate or bottom-hole pressure show complicated behaviors and require more general automated history matching methods based on simultaneous use of both sandface temperature and rate transient data sets for parameter estimation.
|File Size||2 MB||Number of Pages||28|
App, J. F. 2010. Nonisothermal and Productivity Behavior of High-Pressure Reservoirs. SPE Journal 15(1): 50–63. SPE-114705-PA. http://dx.doi.org/10.2118/114705-PA.
Duru, O. O. and Horne, R. N. 2010a. Modeling Reservoir Temperature Transients and Reservoir-Parameter Estimation Constrained to the Model. SPE Res Eval & Eng 13 (6): 873–883. http://dx.doi.org/10.2118/115791-PA.
Duru, O. O. and Horne, R. N. 2010b. Joint Inversion of Temperature and Pressure Measurements for Estimation of Permeability and Porosity Fields. Presented at the SPE Annual Technical Conference and Exhibition, Florence, Italy, 19-22 September. SPE-134290-MS. http://dx.doi.org/10.2118/134290-MS.
Duru, O. O. and Horne, R. N. 2011a. Simultaneous Interpretation of Pressure, Temperature, and Flow-Rate Data Using Bayesian Inversion Methods. SPE Res Eval & Eng 14 (2): 225–238. SPE-124827-PA. http://dx.doi.org/10.2118/124827-PA.
Duru, O. O. and Horne, R. N. 2011b. Combined Temperature and Pressure Data Interpretation: Applications to Characterization of Near-Wellbore Reservoir Structures. Presented at the SPE Annual Technical Conference and Exhibition, Denver, Colorado, USA, 30 October – 2 November. SPE-146614-MS. http://dx.doi.org/10.2118/146614-MS.
Mao, Y., and Zeidouni, M. 2017. Analytical Solutions for Temperature Transient Analysis and Near Wellbore Damaged Zone Characterization. In: SPE Reservoir Characterization and Simulation Conference and Exhibition, Abu Dhabi, UAE, 08-10 May. SPE-185990-MS. http://dx.doi.org/10.2118/185990-MS.
Mao, Y. and Zeidouni, M. 2018a. Temperature transient analysis during boundary dominated flow period. In SPE Western Regional Meeting, Garden Grove, California, USA, 22-26 April. SPE-190022-MS. http://dx.doi.org/10.2118/190022-MS.
Mao, Y. and Zeidouni, M. 2018b. Temperature transient analysis for bounded oil reservoir under depletion drive. International Journal of Thermal Sciences, 130, 457–470. http://doi.org/10.1016/j.ijthermalsci.2018.05.011
Mao, Y. and Zeidouni, M. 2018c. Transient and boundary dominated flow temperature analysis under variable rate conditions. SPE Trinidad and Tobago Section Energy Resources Conference, Port of Spain, Trinidad and Tobago, 25-26 June. SPE-191353-MS. http://dx.doi.org/10.2118/191353-MS.
MacDonald, R.C. and Coats, K. H. 1970. Methods for Numerical Simulation of Water and Gas Coning. SPE J. 10(4): 425–436. SPE-2796-PA. http://dx.doi.org/10.2118/2796-PA.
Onur, M. and Cinar, M. 2016a. Temperature Transient Analysis of Slightly Compressible, Single Phase Reservoirs. In: SPE Europec featured at 78th EAGE Conference and Exhibition, Vienna, Austria, 30 May-2 June. SPE-180074-MS. http://dx.doi.org/10.2118/180074-MS.
Onur, M., Ulker, G., Kocak, S., and Gok, I. M. 2016b. Interpretation and Analysis of Transient Sandface and Wellbore Temperature Data. In SPE Annual Technical Conference and Exhibition, Dubai, UAE, 26-28 September. SPE-185802-MS. http://dx.doi.org/10.2118/185802-MS.
Onur, M., & Cinar, M. 2017. Modeling and Analysis of Temperature Transient Sandface and Wellbore Temperature Data from Variable Rate Well Test Data. In SPE Europec featured at 79th EAGE Conference and Exhibition, Paris, France, 12-15 June. SPE-181710-MS. http://dx.doi.org/10.2118/181710-MS.
Onur, M., and Panini, F. 2018. Parameter Estimation from Sandface Drawdown Temperature Transient Data in the Presence of a Skin Zone Near the Wellbore. In SPE Europec featured at 80th EAGE Conference and Exhibition, Copenhagen, Denmark, 11-14 June. SPE-190773-MS. http://dx.doi.org/10.2118/190773-MS.
Sidorova, M., Shako V., Pimenov V. 2015. The value of transient temperature responses in testing operations. Presented at the SPE Middle East Oil & Gas Show and Conference, Manama, Bahrain, 8-11 March. SPE-172758-MS. http://dx.doi.org/10.2118/172758-MS.
Stehfest, H. 1970. Algorithm 368: Numerical Inversion of Laplace Transforms. Comm. ACM 13 (1): 47–49. http://dx.doi.org/10.1145/361953.361969.
Sui, W., Zhu, D., Hill, A. D., 2008a. Model for Transient Temperature and Pressure Behavior in Commingled Vertical Wells. Presented at the SPE Russian Oil & Gas Technical Conference and Exhibition, Moscow, Russia, 28 – 30 October. SPE-115200-MS. http://dx.doi.org/10.2118/115200-MS.
Sui, W., Zhu, D., Hill, A. D. 2008b. Determining Multilayer Formation Properties from Transient Temperature and Pressure Measurements. Presented at the SPE Annual Technical Conference and Exhibition, Denver, Colorado, USA, 21–24 September. SPE-116270-MS. http://dx.doi.org/10.2118/116270-MS.
Theis, C. V. 1935. The Relation between the Lowering of the Piezometric Surface and the Rate and Duration of Discharge of Well Using Ground Water Storage, Transactions, American Geophysical Union, 16 (02): 519–524. doi: 10.1029/TR016i002p00519.