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Migration performs two key functions: positioning seismic events at their true subsurface locations and focusing seismic images to achieve sharpness. Migration is needed when the common midpoint gather is poor due to dipping reflectors, focusing issues due to syncline structures, or diffraction through sharp edges. Migration repositions reflected energy from its recorded common midpoint location to the true subsurface position and collapses diffraction hyperbolas to a point. The main types of migration are pre-stack and post-stack migration, which can be done in either time or depth.
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Static corrections are needed to account for irregular near-surface layers and topography in land seismic data. This shifts seismic traces to a common datum to obtain the correct subsurface image and enhance resolution. Static shifts traces to account for variations in elevation, weathering layer thickness and velocity. Several methods calculate static including field statics from acquisition parameters, elevation statics for flat areas, and refraction/reflection methods using first arrivals or residual shifts. Correcting statics aligns events, improves stack quality and avoids structural distortions in the subsurface image.
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(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
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Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
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Event Link:- https://meetups.mulesoft.com/events/details/mulesoft-mysore-presents-mule-event-processing-models/
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For Upcoming Meetups Join Mysore Meetup Group - https://meetups.mulesoft.com/mysore/YouTube:- youtube.com/@mulesoftmysore
Mysore WhatsApp group:- https://chat.whatsapp.com/EhqtHtCC75vCAX7gaO842N
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Shivani Yasaswi - https://www.linkedin.com/in/shivaniyasaswi/
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Shubham Chaurasia - https://www.linkedin.com/in/shubhamchaurasia1/
Giridhar Meka - https://www.linkedin.com/in/giridharmeka
Priya Shaw - https://www.linkedin.com/in/priya-shaw
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Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
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www.StokeNewingtonHistory.com
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- 1. Migration performs two functions- Event positioning Focusing to achieve image sharpness. Why migration? The CMP gather performs poor because of- Dipping reflector Focusing due to syncline structure Diffraction through sharp edges.
- 2. MIGRATION • Migration is a process, which repositions the reflected energy from its CMP to true subsurface locations. • After migration the seismic section appears to be the geologic section. • Migration moves dipping events in up dip direction to their true subsurface position and collapses diffraction to a point.
- 3. • To understand why seismic expression does not show the true position of events, consider the following figures. At the surface the common mid point (CMP) lies at the middle of shot and receiver positions. For a horizontal bed the common depth point (CDP) lies exactly below the CMP.
- 4. Migration process Cour ©An introduction to Geophysical Exploration Philp Kerry at all.
- 5. Dipping Reflector Usually for horizontal reflectors the reflection point is vertically below the source/receiver. For dipping layers the reflection comes from a point up dip. Therefore, a travel-time section will always show a reduced dip. tan αt = Sin αs ©An introduction to Geophysical Exploration , Philp Kerry at all.
- 6. Depth model Time representation Diffracting point Diffraction hyperbola. Dipping reflector Shifted down dip and dip decreased. Tight syncline “Bow tie” shape Geophysicists know well the simple examples of images in time deformed or displaced in relation to the depth model
- 7. TYPES OF MIGRATION PRE STACK MIGRATION TIME DEPTH POST STACK MIGRATION TIME DEPTH
- 8. TYPES OF MIGRATION(CONTD…) • POST STACK MIGRATION: Post-stack migration operates on the stacked section. Post stack- is much faster than Pre stack, because stacking reduces by an order of magnitude the number of traces that must be processed. • For post stack migration to be successful the assumptions made in stacking must be satisfied: the amplitude of the stacked trace and reflected arrivals must be approximately hyperbolic. These suppositions are valid only when variations in lithology and fluid content over the span of the gathered traces can be ignored and when the structure is simple. • PRE STACK MIGRATION: When the subsurface structure is complex the various traces in a CMP are not actually coming from same point in subsurface. These situations can be solved by pre-stack migration. It avoids the stacking process by migration the unstacked data directly.
- 9. TIME AND DEPTH MIGRATION DEPTH MIGRATION- Needed when -stacked section contains structural dip. Stacked section contains large velocity gradients. Successfully used in areas with lateral velocity variations, which tend to be the areas that are most interesting to petroleum geologists. Some of the popularly used depth migration algorithms are: Kirchhoff depth migration, Reverse Time Migration(RTM), Gaussian Beam Migration and Wave- equation Migration. Time Migration- Needed when stacked section contains structural dip or diffractions. Valid for vertically varying velocity. Acceptable to mild lateral velocity variations Some popularly used time migration algorithms are: Stolt migration, Gazdag and Finite-difference migration.