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Copy of Copy of Well Testing Ppt

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by

Said Osman

on 14 January 2014

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Transcript of Copy of Copy of Well Testing Ppt

WELL TESTING
Surbhi Narain
Field Engineer Trainee
Schlumberger
Kakinada
What is Well Testing ?
MEASURING PRESSURE
AND TEMPERATURE

PVT ANALYSIS
FINDING
THE OIL-WATER-GAS RATIO

FINDING THE
PROPERTIES OF FLUID
DETERMINING
THE ECONOMIC VIABILITY
OF THE WELL
FACTS ON TESTING
DYNAMIC
CONDITIONS
WELL
PRODUCTIVITY
SEGMENTS
IN
WELL TESTING
DST
Drill Stem Test
TCP
(Perforation)
SURFACE
TESTING
SUBSEA
RSA
(RESERVOIR
SAMPLING )
RESERVOIR
SAMPLING
DRILL STEM TESTING
DST

Process of down hole
data collection using tools
HISTORY OF DST
Drill Stem Testing
1926-56
1976-86
Dowell Schlumberger
Flopetrol Johnston
1960-70
Schlumberger W & T
1986-99
Schlumberger WCP
2000-06
Schlumberger Testing
2006-
Johnston Testers
OBJECTIVES
OF DST
ISOLATE
CONVEY
CONTROL
ACQUIRE
PRESSURES IN DST
ANNULUS PRESSURE (Ph)
CUSHION PRESSURE (Pc)
FORMATION PRESSURE(Pf)

Ph > Pf > Pc
Annulus Pressure > Formation Pressure > Cushion Pressure
TYPES OF DRILL STEM TESTING
COMPONENTS
OF
DST STRING

CIRCULATING
VALVES
TESTING
VALVES
PACKER
GAUGES
MAIN COMPONENTS
THE SAFETY TOOLS
HYDAULIC JAR (JAR-F)
BOWEN SAFETY JOINT (SJB-F)
PACKERS
Bottom-most tool of DST String
FUNCTIONS:
Seperate annulus from formation
Hold the weight of the DST String above
Bypass ( pressure equalization <RIH & POOH> )
TYPES OF PACKERS
Positest Packer
Positrieve Packer
Flexpac Packer
Flexpac Hold-down Packer
Full transcript