Two-packer system for dual injection (rated up to 5075 psi) 2PROK-ORZ

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Two-packer system for dual injection (rated up to 5075 psi) 2PROK-ORZ

It is used for maintenance of reservoir pressure during the development of oil fields with the dual water injection to several production intervals for the production casings with the nominal outer diameter from 5 1/2’’ to 7’’ in.

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Description
Technical characteristics

THE SYSTEM USAGE ALLOWS:

carrying out the water injection to several production intervals via one borehole;

significantly reducing the capital expenditure and operating costs during the construction and operation of waterflooding patterns in oilfields;

installing and removing the systems during one tripping.

ADVANTAGES:

dual injection via one OWT elevator;

change of the outlets by the geophysical elevator during one tripping;

implementation of the integrated researches - general researches as well as of each reservoir sepa- rately;

geophysical researches of the injectivity profile of the lower reservoir with the outlet from OWT;

measurements of injection flow and pressure with the help of standart geophysical equipment;

there is no need to use the downhole systems and wireline technique;

the divider installation can be implemented with its dumping into the casing of OWT.

Code	Casing		BHA OD, in	BHA ID, in (not less than)	Maximum temperature, F	NUE connection thread*
	OD, in	Nominal Weight, lb./ft				Top (box)	Bottom (nipple)
2PROK-ORZ-1-118-Х1	5 1/2”	15.5-17.0	4.65	2.32	302	2 7/8”	2 7/8”
	5 3/4”	20.0-24.5
2PROK-ORZ-1-122-Х1	5 3/4”	15.5-20	4.8
2PROK-ORZ-1-140-Х1	6 5/8”	28.0-32.0	5.51			3 1/2”
2PROK-ORZ-1-142-Х1	6 5/8”	20.0-24.0	5.59
	7”	35.0-38.0
2PROK-ORZ-1-145-Х1	6 5/8”	20.0	5,71
	7”	23.0-35.0