IMPROVED RESERVOIR PERMEABILITY MODELS FROM FLOW UNITS AND SOFT COMPUTING TECHNIQUES: A CASE STUDY, SURIA and REFORMA-LIBERTAD FIELDS, COLOMBIA (Record no. 131193)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03522nmc a2200277 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2001 xxu ing |
| 041 ## - IDIOMA | |
| Idioma | Inglés |
| 245 00 - TITULO | |
| Título | IMPROVED RESERVOIR PERMEABILITY MODELS FROM FLOW UNITS AND SOFT COMPUTING TECHNIQUES: A CASE STUDY, SURIA and REFORMA-LIBERTAD FIELDS, COLOMBIA |
| Subtítulo | SPE 69625 |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Lugar de publicación, distribución, etc. | Dallas, Texas |
| Nombre de publicador, distribuidor, etc. | Society of Petroleum Engineers |
| Fecha de publicación, distribución, etc. | 2001 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 12/09/06 ; 17/03/03 |
| 520 ## - RESUMEN, ETC | |
| Resumen | This paper presents a methodology that looks to solve the inverse problem of predicting reservoir properties on uncored intervals/wells, using soft computing techniques (neural networks and fuzzy logic), multivariate statistical analysis and hydraulic flow unit concepts. Our methodology to improve the prediction of permeability in Suria and Reforma-Libertad fields in Colombia is the following: 1.Data quality control. We apply multivariate statistical analysis for quality control of core and log data: 95% confidence ellipses and Q-Q plots are used for that purpose. 2.Rock type identification. We use poral geometry analysis to identify rock types in cored wells. Then, fuzzy logic, core and log variables are used to develop a rock type model to be used in solving the inverse problem, predict the rock type in uncored intervals/wells. 3. Hydraulic flow unit classification. For that purpose, we use the technique based on a modified Kozeny-Carmen equation to calculate the reservoir quality index, RQI=0.0314(K/f) ½ , flow zone indicator, FZI=RQI/(f/(1-f)) and fz = f/(1-f). The basic idea of hydraulic flow unit (HFU) classification is to identify classes that form unit-slope straight lines on a log-log plot of RQI vs. fz with similar but not identical FZI value. Each class or hydraulic flow unit has a mean FZI value at the intercept with fz = 1, and a maximum and a minimum FZI values. We use log data and the fuzzy logic rock type variable to develop a neural network FZI model to be used in solving the inverse problem, predict FZI in uncored intervals/wells. The HFU for each uncored interval is determined with its FZI value that falls on a range between maximum and minimum values of FZI. Finally, permeability is calculated knowing its porosity and FZI values. In the literature, the HFU is first determined by Bayesian inference assigning a probability distribution of log values to each HFU and identifying to which population the given set of log readings most likely belong. Then, permeability is estimated from porosity and mean FZI values ignoring the scatter data for each HFU. Permeability estimations from our approach are compared from other conventional techniques to demonstrate that this is a better way to get confident permeability models and to show how to used soft computing techniques to improve reservoir description. |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Congresos (trabajos presentados) |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Soto B., R. |
| 9 (RLIN) | 6567 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Torres, F. |
| 9 (RLIN) | 6568 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Arango, Santiago |
| 9 (RLIN) | 5723 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Cobaleda, G. |
| 9 (RLIN) | 6569 |
| 111 2# - AUTORIDAD DE CONGRESO | |
| Nombre de congreso | Latin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) |
| 9 (RLIN) | 5738 |
| 700 1# - OTRA AUTORIDAD PERSONAL | |
| Nombre | Torres, F. |
| 9 (RLIN) | 6568 |
| 700 1# - OTRA AUTORIDAD PERSONAL | |
| Nombre | Arango, Santiago |
| 9 (RLIN) | 5723 |
| 700 1# - OTRA AUTORIDAD PERSONAL | |
| Nombre | Cobaleda, G. |
| 9 (RLIN) | 6569 |
| 711 2# - ENTRADA AGREGADA--NOMBRE DE REUNIÓN | |
| Nombre de congreso/reunión o jurisdicción como elemento de entrada | Latin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) |
| 800 1# - RESPONSABLE EDICION | |
| Nombre | Soto B., R. |
| 9 (RLIN) | 6567 |
| 856 ## - LINK | |
| Link | <a href="https://biblioteca.iapg.org.ar/ArchivosAdjuntos/LACPEC2001/Spe69625.pdf">https://biblioteca.iapg.org.ar/ArchivosAdjuntos/LACPEC2001/Spe69625.pdf</a> |
| 711 2# - ENTRADA AGREGADA--NOMBRE DE REUNIÓN | |
| -- | 5738 |
| Biblioteca propietaria | Biblioteca actual | Fecha de adquisición | Inventario | Total de préstamos | Inventario | Fecha de carga | Tipo de item KOHA |
|---|---|---|---|---|---|---|---|
| Biblioteca virtual | Biblioteca virtual | 03/03/2026 | 200003273 | 200003273 | 03/03/2026 | Archivo electrónico |
