software imp-pild® petrophysicalinversion of log data · oftware imp-pild® “petrophysical...
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Software IMP-PILD® Petrophysical Inversion of Log Data
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Software IMP-PILD® “Petrophysical Inversion of Log Data”version 1.0 is a computational tool for petrophysicalevaluation of carbonate formations using a joint inversion ofconventional well logs.
The advantages of IMP-PILD® over traditional commercialsoftware are:
• focus in evaluation of carbonate formations withcomplex pore microstructure,
• evaluation of the vug and microfractureporosities,
• prediction of connectivity for the secondary-poresystems,
• determination of the initial and residual oilsaturations for different pore systems.
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Input data for IMP-PILD®software:
Conventional well logs:
Acoustic logs with P- and S-wave times.
Deep and shallow resistivity logs.
Density log.
Neutron log (total porosity).
Gamma ray log.
Photoelectric abortion index.
Connate water parameters:
Density, resistivity, P-wave velocity.
Clay and matrix grain parameters:
Density, P- and S-wave velocities.
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Determined petrophysical parameters
1. Litology: dolomite,
limestione, and shale
volumes
2. Primary, secondary,
and shale porosities
3. Original and
residual oil
saturations in
primary pores
4. Original and
residual oil
saturations in
secondary pores
5. Vuggy porosity and
shape of vugs
6. Crack porosity
7. Connection
parameters of vuggy
and fracture pore
systems
8. Non connected
secondary porosity
9. Connected secondary
porosity
10. High
permeability
zones
11. Correction and/or
reconstruction of
well logs
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The IMP-PILD® technology provide:• Correct hydrocarbon evaluation and formation productivity.• Selection of adequate exploitation strategies.
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Joint inversion
Analysis of adjustment errors
Petrophysical and
geological
information, etc.Initial model
Minimization of the cost function
Formation petrophysical properties
Synthetic well logs
Experimental well log
Weighted coefficients
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Core data
Inversion results
Technology application has a high impact in the
petrophysical evaluation at the borehole scale
and characterization of oil fields in carbonate
formations with double (triple) porosity
systems. The use of conventional logs allows
application of this technology in the recent
drilling and old boreholes.
Adequate petrophysical characterization of
the old oil fields helps to increase the
recuperation factor up to 5% and in new
fields it can reduce the production costs by
using appropriate information about
formation microstructure with double (triple)
porosity systems.
Product portfolio:
• Sale of the software with o without technical assistance.
• Service contracts: data processing and interpretation of the
well logs for carbonate formation characterization.
• Development of the petrophysical models and software for
specific complex formations.
The technology was applied in the oil fields May, Sinan, Ku-
Maloob-Zaap, Abkatun, Homol, Ayatsil-Tkel, Utsil, Baksha-Pit,
and Pohp-Tson for static characterization of the reservoirs,
elaboration of reservoir geological and petrophysical models,
reservoir characterization for improved recuperation,
determination of residual oil saturation, evaluation of fracture
systems, development of the fracturing models, and
permeability distribution.
Determination of residual oil
saturation.
Development of the reservoir model with
permeability prediction.
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In the case of lack of the acoustic
well log with S-wave, the process
of the S-wave log reconstruction
was developed. The
reconstruction permits the
micromechanical parameters
(elastic modulus, Poisson and
Young coefficients) to be
obtained.
For problematic boreholes exists
possibility of logs correction.
The technology provides a wide
range of well log application for
the carbonate formation
characterization.
Correction of the low quality neutron log.
S-wave log reconstruction.
Contacts:
Quantitative Geophysics Department
Dr. Aleksandr Mousatov
Tel. +52 (55) 9175- 6951
www.gob.mx/imp
Nowadays there is no equivalent product that can provide the
quantitative determination of pore-system microstructure, information
about different pore-system saturations and permeability predictions
based on conventional log processing.
Technical Consultations
Dr. Evgeny Pervago
Tel. +52 (55) 9175-7081
Dra. Elena Kazatchenko
Tel. +52 (55) 9175-7098
Dr. Oleg Gurevich Titov
Tel. +52 (55) 9175-7081