Key insights

• Separator Operations and Measurement Technologies

  • 🕰️ Pressure and pressure safety valves in separator operations, continuous monitoring for proper separation, and test procedure steps
  • 📉 Importance of laminar flow for accurate rate measurement, alternative equipment, software for simulation and real-time data monitoring, and safety precautions

• Sampling and Maintenance of Separator Conditions

  • 🛠️ Ensuring equipment certification, inspection, and safety measures are in place before and during operations
  • 💧 Setting and controlling water levels in the separator to prevent mixing with oil, and flow rate determines the type of oil meter used
  • 🧼 Importance of maintaining consistent conditions during sampling, bypassing separator before shutting the well, thorough cleaning, and avoiding solids in the separation process

• Three-Phase Test Separators and Vortex Breakers

  • ⚙️ Operation and testing of low and high pilots in well testing operations, and importance of pressure fluctuation
  • 🔍 Design, components, and selection criteria of three-phase test separators, and key components such as deflector plates, coalescing plates, among others
  • 🌪️ Introduction to vortex breakers and their use in avoiding contamination, as well as gas measurement techniques and the importance of setting separators properly

• High and Low Pilots, SSV, and ESD System

  • 🔒 High and low pilots are safety devices connected to the ESD that close the well if pressure exceeds or falls below a certain threshold
  • ⚙️ SSV is a hydraulic actuated gate valve used to shut a well and includes an inlet, outlet, supporting base frame, and hydraulic actuator
  • 🛠️ Safety considerations for ESD system installation and factors related to SSV activation

• Adjustable Choke and Emergency Shutdown System

  • 🔄 Usage of adjustable choke to change flow rates and explanation of critical flow conditions
  • 🚨 Concerns about erosion of chokes, safety precautions, and the emergency shutdown system (ESD) for well control

• Challenges and Operations in Depleted Reservoirs

  • 🛢️ Challenges include tight formation, difficulty in obtaining monophasic samples, and the use of artificial lift techniques
  • 🚰 Key equipment in well testing includes the data header for pressure and temperature measurements, chemical injection, and thermal wells, as well as the choke manifold for flow rate control
  • ⚠️ Safety considerations for well testing include proper valve operation, maintenance, and positioning to avoid exposure to hazardous gases during sampling
  • 🔀 Adjustable chokes used during cleanup and fixed chokes during the main flow phase

• Introduction to Well Testing

  • ⛽ Well testing determines reservoir properties, production capabilities, and fluid composition
  • 📊 Data acquired includes pressure, temperature, flow rates, fluid properties, and fluid samples for analysis
  • 📅 Timeline involves cleanup, build up, multiple tests, and well killing stages
  • 👷 Crew composition includes well test supervisor, operators, data acquisition specialist, and equipment specialists
  • 🔧 Equipment used includes choke manifold, separators, pressure control equipment, sand filters, and support equipment
  • 📝 Guides decisions on well drilling, pipeline sizing, and production facility planning
  • 🔍 Assessment of reservoir efficiency, completion effectiveness, and interval communication
  • 🌡️ BHS (Bottom Hole Sampling) collects 100% representative reservoir fluid for further lab analysis
  • 💡 Provides insights for decision-making and assessment of well and reservoir performance

Q&A

• What aspects of separator operations are discussed in the video?

  The video covers pressure and pressure safety valves, continuous monitoring, test procedures, laminar flow, alternative equipment, measurement technologies, safety precautions, equipment cleaning, and real-time data monitoring.

• What are the important considerations for maintaining separator conditions?

  Important considerations include maintaining consistent conditions during sampling, thorough cleaning of the separator, adjusting pressure based on flow conditions, and setting and controlling water levels to prevent mixing.

• What factors are considered for the selection of three-phase test separators?

  Selection criteria for three-phase test separators include design, components, and factors such as pressure fluctuation, testing procedures, and key components within the separators.

• What are high and low pilots in well testing?

  High and low pilots are safety devices connected to the ESD that close the well if pressure exceeds or falls below a certain threshold.

• What is the purpose of the emergency shutdown system (ESD) in well testing?

  The ESD system functions independently from the flow head and can be used as a backup measure if the surface safety valve (SSV) fails.

• What are the safety considerations for well testing?

  Safety considerations include proper valve operation, equipment maintenance, and positioning to avoid exposure to hazardous gases during sampling.

• What is the function of the choke manifold in well testing?

  The choke manifold allows for flow rate control, critical flow regulation, and switching between fixed and adjustable chokes for different operational phases.

• What are the challenges of well testing in depleted reservoirs?

  Challenges include tight formation, difficulty in obtaining monophasic samples, and the use of artificial lift techniques.

• What equipment is used in well testing?

  Equipment used includes choke manifold, separators, pressure control equipment, sand filters, and support equipment.

• Who is involved in the crew composition for well testing?

  Crew composition includes a well test supervisor, operators, data acquisition specialist, and equipment specialists.

• What is the timeline for well testing?

  The well testing timeline involves cleanup, build up, multiple tests, and well killing stages.

• What data is acquired during well testing?

  Data acquired includes pressure, temperature, flow rates, fluid properties, and fluid samples for analysis.

• What is the objective of well testing?

  Well testing aims to determine the production capability, reservoir properties, fluid types, composition, and to allow for reservoir assessment and completion efficiency evaluation.

• 00:00 An experienced tunisian well test specialist provides an introduction to well testing, explaining its objectives, data acquired, timeline, crew composition, and equipment used. Well testing determines the production capability, reservoir properties, fluid types, composition, and allows for reservoir assessment and completion efficiency evaluation.
• 18:56 The speaker discusses challenges and operations related to well testing in depleted reservoirs, focusing on specific equipment such as the data header and choke manifold. Safety considerations and maintenance of equipment are also emphasized.
• 39:21 The transcript discusses the usage of adjustable choke to change flow rates, critical flow conditions, erosion of chokes, safety precautions, and the emergency shutdown system (ESD) for well control. It also addresses sand erosion and control equipment.
• 59:31 The segment discusses the function of high and low pilots, the surface safety valve (SSV) and the emergency shutdown (ESD) system for oil and gas well testing. It also explains the factors and measures related to SSV activation and highlights the safety considerations for ESD system installation.
• 01:18:39 The video segment discusses the operation, testing, and safety considerations of low and high pilots, as well as the design, components, and selection criteria of three-phase test separators. The segment highlights the importance of pressure fluctuation, testing procedures for pilots, and key components within the separators.
• 01:39:52 The video segment discusses vortex breakers and separation processes in the oil and gas industry, including types of meters, gas measurement, and the importance of setting separators properly. It also covers the use of shrinkage testers and operational tips for separators.
• 02:00:13 The video discusses important considerations for sampling and maintaining separator conditions, addressing issues such as pressure, safety, maintenance, and equipment operations.
• 02:19:26 The speaker discussed various aspects of separator operations, including pressure, fluid flow, separation monitoring, clean fluid, test procedures, laminar flow, alternative equipment, measurement technologies, software, safety precautions, equipment cleaning, and real-time data monitoring.