SCOPE OF APPLICATION
PGM-28-300
- Oil and gas wells equipped with sucker rod pump
PGM-36(38, 42)-300, PGM-48-500
- Oil and gas wells
PGM-38(48)-500
- Oil and gas wells
- is limited in use when viscous, waxy oils are present in the wellbore due to difficult circulation through the sampler reception chamber during its RIH to the sampling interval
FEATURES
- Fluid and gas sampling is carried out into a sealed transportable container for subsequent analysis in laboratory conditions
- Pressure and temperature recordings are taken during entire time the sampler is in the borehole
- The sampler is conveyed to the target depth on a logging cable; it is controlled by applying voltage to the sampler from the surface using a standard logging power source
- PGM samplers are software and hardware interfaced to the VULCAN surface system
- In PGM-28-300 sampling is performed from the wellbore in a static position by swabbing method, which prevents sample degassing (suction type sampler)
- While RIH of PGM-38(48)-500 the connection of the inner cavity of the container with the fluid in the wellbore is provided; when the tool is set at a given depth on command from the surface, the lower and upper valves on the container are closed providing sealing of fluid and gas sample under formation pressure (flowing sampler type); sampling is performed from the wellbore space
ADVANTAGES
- Low weight and size
- Easy to use
- Tripping out oil and gas samples to the surface in a sealed container
SAMPLING OF FLUID AND GAS FROM ANNULUS
Challenge
Sampling of fluid and gas from annulus accompanied with pressure and temperature
Solution
PGM-28-300 Sampler
Fluid and gas samples are taken from annular space into a sealed transportable container in a static position by swabbing method, preventing sample degassing (suction-sampler) for their subsequent analysis in laboratory conditions. Pressure and temperature are recorded during entire time the sampler is in the borehole.
The sampler is wireline-delivered to the specified depth; it is controlled by applying voltage to the sampler from the surface using a standard logging power supply.
Results
An experimental model was manufactured and tested at one of the oil and gas fields of OOO TNG-Group (LLC).
It was made 3 trips and taken 3 samples, number of failures is 0.
Advantages
- Low weight and size
- Easy to use
- Tripping out oil and gas samples to the surface in a sealed container
Key benefits
The use of the geophysical module as part of the sampler allows us to identify the bubble point pressure intervals.
Location:
Russia
Well:
Vertical