Fracture Identification and Comprehensive Evaluation of the Parameters by Dual Laterolog Data

2015 ◽  
Author(s):  
Hadi Saboorian-Jooybari ◽  
Morteza Dejam ◽  
Zhangxing John Chen ◽  
Peyman Pourafshary
Keyword(s):  
Comprehensive Evaluation ◽  
Fracture Identification ◽  
Dual Laterolog

Fracture Identification and Comprehensive Evaluation of the Parameters by Dual Laterolog Data

2015 ◽  
Author(s):  
H.. Saboorian-Jooybari ◽  
M.. Dejam ◽  
Z.. Chen ◽  
P.. Pourafshary
Keyword(s):  
Comprehensive Evaluation ◽  
Fractured Reservoirs ◽  
Well Drilling ◽  
Fracture Parameters ◽  
Fracture Development ◽  
Tight Formations ◽  
Dip Angle ◽  
Carbonate Formations ◽  
Fracture Identification ◽  
Dual Laterolog

Abstract Quality and productivity of tight formations are heavily dependent on the degree of fracture development. In fact, hard and dense carbonate formations may not be considered as net pay without presence of fractures which conduct fluids towards wellbore. The evaluation of fractures is a key to reservoir effectiveness characterization for well drilling, completion, development and simulation of fractured reservoirs. Although new imaging technologies such as Formation Micro-Scanners and Imagers (FMS and FMI) provide the information of fracture properties (dip angle, porosity, aperture and permeability), image logs are very expensive and cannot be available in all wells. In this paper, fracture parameters are estimated using conventional Dual Laterolog (DLL) resistivity, which includes shallow (LLS) and deep (LLD) responses. This technique is based on electrical resistivity anomalies because of separation of shallow and deep laterolog curves. Fracture parameters that can be calculated by DLL include dip angle, aperture, porosity, permeability and cementation factor. The accuracy of the calculated parameters using DLL is validated by the results of FMI in one well in one of Iranian fractured reservoirs. Despite the image logs, the conventional DLL is routinely run in all of the drilled wells. This makes the constructed fracture model on the basis of DLLs more reliable than the corresponding model founded on limited and insufficient image logs. Furthermore, DLL has an advantage of much deeper evaluation of fractures in comparison with the immediate borehole investigation of image logs.

Comprehensive evaluation of fracture parameters by dual laterolog data

2016 ◽  
Vol 131 ◽  
pp. 214-221 ◽  
Author(s):  
Hadi Saboorian-Jooybari ◽  
Morteza Dejam ◽  
Zhangxin Chen ◽  
Peyman Pourafshary
Keyword(s):  
Comprehensive Evaluation ◽  
Fracture Parameters ◽  
Dual Laterolog

Comprehensive Evaluation of Learning Disabilities: A Response to Intervention Perspective

2005 ◽  
Author(s):  
Frank M. Gresham ◽  
Daniel J. Reschly ◽  
Jack Fletcher ◽  
Matthew Burns ◽  
Theodore Christ ◽  
...  
Keyword(s):  
Learning Disabilities ◽  
Response To Intervention ◽  
Comprehensive Evaluation ◽  
Evaluation Of Learning

A fuzzy evaluation method of road vehicle automatic weighing instrument in dynamic force metrological performance

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1365-1372
Author(s):  
Xiaohui Mao ◽  
Liping Fei ◽  
Xianping Shang ◽  
Jie Chen ◽  
Zhihao Zhao
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Dynamic Performance ◽  
Dynamic Force ◽  
Fuzzy Evaluation ◽  
Road Vehicle ◽  
Evaluation Standard ◽  
The Road ◽  
Metrological Performance

The measurement performance of road vehicle automatic weighing instrument installed on highways is directly related to the safety of roads and bridges. The fuzzy number indicates that the uncertain quantization problem has obvious advantages. By analyzing the factors affecting the metrological performance of the road vehicle automatic weighing instrument, combined with the fuzzy mathematics theory, the weight evaluation model of the dynamic performance evaluation of the road vehicle automatic weighing instrument is proposed. The factors of measurement performance are summarized and calculated, and the comprehensive evaluation standard of the metering performance of the weighing equipment is obtained, so as to realize the quantifiable analysis and evaluation of the metering performance of the dynamic road vehicle automatic weighing instrument in use, and provide data reference for adopting a more scientific measurement supervision method.

Sign in / Sign up

Export Citation Format

Share Document