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Integrated solution
for interpretative processing
of 2D/3D/4D/3C/4C seismic data
Technologies of XXI century
2017
Vladimir M. Glogovsky (1936-2008) is a doctor of
Physical & Mathematical Sciences, an outstanding
mathematician and geophysicist, author of the
concept of the Prime interpretative seismic data
processing. He developed the applied theory of
reverse kinematic problem solution: building
depth-velocity model of subsurface/media along
with its feasibility and consistency verification.
Vladimir M. Glogovsky implemented the interactive
approach and real-time accounting for a priori
information, which allows making geologically
meaningful decision directly in the course of the
processing.
History of the Seismotech
Company
2
Seismotech is a group of like-minded specialists created by
Vladimir M. Glogovsky for more than twenty years of fruitful collaboration.
Milestones: Prime
philosophy evolution
3
Yandex Terra:
project resources
4
Key focus areas
5
Development of the Prime software system;
Expert interpretative seismic data processing;
Conduction of certain resource intensive computational procedures;
Providing access to high-performance computing technologies and resources
(Customer’s Computing Environment service);
Research and development efforts and Customer-oriented software development;
Consulting in interpretative seismic data processing.
Sale of licenses and technical support of the Prime software system;
The Prime software concept is based
on the applied theory of building depth-
velocity media model accompanied by
the model validation and consistency
check.
The program provides an opportunity
for continuous interactive accounting for
a priori information, which allows
making geologically reasonable
decisions during the processing.
Thus, the program allows considerable
decreasing the risk of obtaining
incorrect result that contains false
structures in geological column.
Concept
of Prime software system
6
Thick-layer depth velocity model consistent with a priori geological
information is used in the course of processing; this allows taking
into account variations of physical properties in both vertical and
lateral directions.
Core of Prime is building a subsurface depth-velocity model on the basis of unconventional
algorithms that are efficient in complicated and diverse seismic and geological conditions.
Processing consistent with horizons
Programs for phase spectrum correction and non-stationary deconvolution;
Static shifts estimation using information on depth of geological structures;
Taking into account topography variations, correction for complex near-surface section;
Coherent noise (multiples) modelling and adaptive subtraction;
Building subsurface depth-velocity model consistent with geological information;
Unique opportunities
of the Prime software
7
The Prime software system includes modules, techniques and tools conventional
for classical processing as well as unique algorithms developed for the recent
years; they are actively applied to solve modern tasks of increasing complexity.
Prestack and poststack Kirchhoff
migration in depth and time domains
taking into account directional properties
(anisotropy) of different types of waves;
Layer-by-layer boundary integral migration
of SCP gathers taking into account
gradient anisotropy of different types of
waves (analogue of RTM);
Wave field transformations. Simplification
of complicated diffraction wave pattern;
Kinematic-dynamic transformation;
... and much more.
Unique opportunities
of the Prime software
8
More than 400 efficient
interactive tools!
Advantages
of the Prime system
9
Provability and validity of processing results in any stage
Forming the basis depth-velocity model is tested for validity and consistency. For
this purpose, a special criterion of the model sufficiency in terms of a priori
knowledge about the media is calculated. Thus, each processing result
(intermediate or final) is reasonable in terms of geology.
Parallel computing
To handle large data volumes, it is essential that software allows working not only
properly but also quickly. Prime meets these requirements as the user can
customize procedures settings for one test line, save the sequence of procedures
with specified parameters to database, and then apply stream-oriented processing
to the full amount of data. Most of compute-intensive procedures in Prime are
compatible with cluster technologies allowing to use all the computational
resources efficiently.
All the applications use a single common
database. Change of an object in one
application can be immediately seen in
other applications, this reduces time cost
of data downloading/uploading and
reformatting and thus speeds up
processing operations.
Interactive graphic tools make working
with the Prime software system simpler
for users, and simplify the process of
mastering the system.
Interactive applications
in Prime software
10
The software includes several graphical applications responsible for
different tasks, they are: building velocity model, calculation of migrations
and comparison of results, parameters testing, constructing processing
streams, etc.
An example of comparison of time-depth model validity before and
after wavefield datuming.
Western Siberia
Eastern Siberia
Caspian Sea
Astrakhan Arch
Northern Caucasus
Black Sea
Saratov/Volga Region
Northern Caspian Region
Timan-Pechora
Baltic Sea
Gurievsky Arch
Barents Sea
Kara Sea
Laptev Sea
Aral Sea
Sakhalin Shelf
Sea of Okhotsk
North Sea
Norwegian Sea
Gulf of Mexico
Republic of Colombia
Saudi Arabia
Chinese provinces
South China Sea
Brazilia Shelf
Serbia
Iraq
25+ years of practical experience
in Prime technology
11
© Yandex
Customer’s Computing
Environment (CCE)
12
Customer’s
Computing
Environment
(CCE)
Operating
environment on
the Yandex Terra
resources
Prime software
system= +
Computational resources
chosen by customer
It is possible to add
a third-party software
Integrated
Customer Care+
Support of hardware
and software system
13
Customer’s Computing
Environment (CCE): more details
Data loading both online (via
Internet) and from external
media;
High standards of fault
tolerance;
Data security and
confidentiality;
Integrated customer care;
Pre-installed Prime software for
interpretative seismic data
processing.
No expenditures on hardware purchase, maintenance, and upgrade.
No expenditures on software licenses purchase;
Low costs of computation;
Geography independence of workplace;
High standards of the system fault tolerance;
High standards of data security and confidentiality;
Integrated technical support (software and hardware);
Favourable conditions for collaboration within the single work environment for a
team of remotely located specialists;
Real-time traceability of work progress and verifiability of the results obtained in
intermediate stages in working with contractors;
Sharing data and results between different departments of the company.
Advantages of Customer’s
Computing Environment (CCE)
14
Yandex Terra:
an open project
Companies and teams engaged
in software development gain
an opportunity to:
Adapt software to our computational
model;
Perform commercial calculations
for customers, using computing
resources of Yandex Terra;
Deploy software at our resources;
Make use of «sandbox» for
developers.
15
Urgent carrying out of certain
resource intensive computational
procedures;
High performance computing;
No expenditures on hardware
purchase and upgrade;
No expenditures on hardware
maintenance;
Low costs of computation.
Yandex Terra:
service for service companies
16
Service companies get the opportunity to perform computations using the
Yandex Terra resources:
Time presses? Migration should be carried out promptly? May be,
SRME, modelling and suppression of internal multiple,
regularization? Large amounts of data?
Contact us, and we'll do the calculations quickly and accurately!
Western Siberia: accounting for
influence of gas accumulation
17
GWC
Time section Depth migration
Example ofKirchhoff
prestack depth migration
Eastern Siberia: 2D prestack migration
prior to multiples subtraction (onshore)
18
Result of time processing
in conventional system
Depth migration
Example of adaptive
subtraction
Debubbling and
Deghosting
Arctic region: suppression of secondary
energy release and ghost waves
19
Before After
Exampleof 2D SRME
Black Sea: multiple attenuation and
accounting for velocity heterogeneity
20
Time section Depth migration
Direct
reflected signals
1st seafloor multiple
Internal
multiple
Dogleg
multiple
Caspian Sea: multiple suppression
21
Time section before multiple suppression Time section after multiple suppression
Exampleof 2D SRME
Caspian Sea: multiple suppression
22
Common offset stacks (200 m) - before suppression Common offset stacks (200 m) - after suppression
- upper boundary of multiple modelling zone
Exampleof 2D SRME
25+ years of the Prime technology use in practice;
400+ efficient interactive tools;
Loading 10 TB data from USB 2.0 media takes about 24 hours;
Re-sorting 10 TB data using 230 cluster nodes takes 20 min;
100+ projects are completed by now using the Prime technology; they are both of
Russian and foreign origin, including the offshore projects (Laptev Sea, North Sea,
Baltic Sea, Barents Sea, Kara Sea, Sea of Okhotsk, Caspian Sea, Black Sea, Sea
of Azov, South China Sea, Norwegian Sea, Gulf of Mexico, Indian Ocean);
140+ scientific publications devoted to Prime.
Prime in figures
23
25+ years of scientific studies and
software development in the field of
seismic data processing;
Experience of long-term cooperation with
foreign geophysicists, collaborative
software development with Statoil
Company;
Innovative solutions: algorithms and
methodologies development with specific
customer’s goals and objectives in mind;
Responsive Customer Care in Russian
language.
Prime software development
and support
24
A high level of R&D is the embodiment of many years of experience of out
processing engineers, scientific studies conducted and long-term
cooperation with foreign geophysicists in a bid to obtain the best result in
solving problems of seismic processing, both conventional and
complicated.
The company became the winner of
Petroleum 2016 competition held by Skolkovo
in the "Oil and gas exploration and
production” nomination.
Our project “Building depth subsurface
models using seismic data. New approaches
to old problems solving” was recognized as
the best of the other 16 works qualified for
final of competition organized in December
2016 by IF Skolkovo and Gubkin Russian
State University of Oil and Gas.
The company team
25
30+ employees, they are: PhDs, geophysicists with field experience and
with long record of work in interpretative processing, high-skilled software
developers.
In 2016, Yandex Terra has become a project
member of the Skolkovo Innovation Center
Prime software system
Russian Software System (in-house
development) for interpretative
interactive processing of
2D/3D/4D/3C/4C certified in
accordance with all the standard
requirements.
Prime software system is registered in
the Federal Service for Intellectual
Property and listed in the Unified
Registry of Russian Computer
Programs and Databases.
Equipment and software
26
Virtually unlimited computing power
Our partners and customers
27
Our partners are: Ingenix Group, JSC MAGE, GridPoint Dynamics Ltd.
Our customers are: PJSC Gazprom Neft, Gazprom Geologorazvedka Ltd., PJSC
LUKOIL, PJSC JSOC Bashneft, VolgogradNIPImorneft Ltd., STATOIL, JSC DMNG,
CJSC Pangea, Geological Research and Development Centre PurGeo Ltd.,
RN-UfaNIPIneft Ltd., SibGeoProject Ltd., and other companies.