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Shail Soni- Internship Presentation

Date post: 18-Aug-2015
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Testing and Subsea Internship Presentation - Shail Soni - University of Petroleum and Energy Studies, Dehradun
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Page 1: Shail Soni- Internship Presentation

Testing and Subsea

Internship Presentation

- Shail Soni- University of Petroleum and

Energy Studies, Dehradun

Page 2: Shail Soni- Internship Presentation

Well Test Objectives

• Boundaries

• Flow Rate

• Permeability

• Reservoir Pressure

• Samples

Page 3: Shail Soni- Internship Presentation

Types of Tests

• Single Rate

• Multi Rate

• Extended Well Test

• Gas Well Test– Isochronal

– Modified Isochronal

– Flow after Flow

Page 4: Shail Soni- Internship Presentation

Ph, Hydrostatic Pressure

Pf, Formation Pressure

DST Concept

Pc < Pf

Packer to Isolate formation

Down Hole Valve to CONTROL formation (Closed)

Tubing/ Drill Pipe to Channel flow to surface

Pc, Cushion Pressure

Page 5: Shail Soni- Internship Presentation

Drill Stem Test

• Downhole Testing Equipments– Tester Fluid

– Sampler

– Gauges

– Packers

– TCP Gun

Page 6: Shail Soni- Internship Presentation

Drill Stem Test

Example String

Page 7: Shail Soni- Internship Presentation

Surface Well Testing

Page 8: Shail Soni- Internship Presentation

Subsea Safety System

• Requirement:– Well control during harsh weather conditions

– Deal with Hydrate formation

Page 9: Shail Soni- Internship Presentation

Subsea Saftey System

  Retainer Valve Lubricator valve Sub-sea Tree

Page 10: Shail Soni- Internship Presentation

Data Acquisition System

• Importance of Pressure and Temperature Data– UB /OB

– Well Performance

– Fluid Interfaces

– Reservoir Analysis

– Well Interference

Page 11: Shail Soni- Internship Presentation

Well Life and DAS

• Exploration Phase• Producibility and profitability

• Development Phase• Reservoir Continuity and Communication

• Later Stages• Reservoir life.

• Secondary recovery technique implimentations

Page 12: Shail Soni- Internship Presentation

DAS

• Types of Gauges– Mechanical

– Electronic

Page 13: Shail Soni- Internship Presentation

Sampling

• Importance of Sampling

• Types of Sampling– Surface

– Bottomhole

• Processes in Sampling– Acquire

– Transfer

– Store

– Evaluate

– Analyze

Page 14: Shail Soni- Internship Presentation

Sampling

• Types of Samplers– SPS 15

– SPS-A

• Protection against Sour Systems

Page 15: Shail Soni- Internship Presentation

Thanks!


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