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Drift Sub

The drift sub is a tool for repairing the slightly deformed casing of oil, gas and water well. Drift sub confrms that the casing diameter has the required drift. The sub consists of a drift sleeve supported by two brass bearing rings that are secured by an upper stop assembly. The drift sleeve serves to confrm casing drift while maintaining the maximum fow area around the tool.

Classification:

Rate of Penetration Ehancement Tools

Key words:

PETROZHR

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Detailed Description

APPLICATION
The drift sub is a tool for repairing the slightly deformed casing of oil, gas and water well.
Drift sub confrms that the casing diameter has the required drift. The sub consists of a drift sleeve supported by two brass bearing rings that are secured by an upper stop assembly.
The drift sleeve serves to confrm casing drift while maintaining the maximum fow area around the tool.

FEATURES AND BENEFITS
1. Flow-through rotational configuration
2. Simple, robust design with no external fittings or parts
3. Positive confirmation of casing drift while reducing casing wear 4. Can be sized to suit any required casing drift
5. Complements ZHR wellbore cleaning package

TECHNICAL DATASHEET

Model	Applicable casing size	A(L)	B(L)	C(L)	D(φ)	E(p)	F(Thread)	G(φ)
ZHRWIDS450	9-5/8 53.5#	1530	300	500	213	71	4-1/2IF	162
ZHRWIDS450F	9-5/8 43.5#	1530	300	500	218.5	71	4-1/2IF	162
ZHRWIDS350	7 32#	1530	300	500	151	51	3-1/2IF	127
ZHRWIDS350F	7 23#	1530	300	500	158	51	3-1/2IF	127
ZHRWIDS288	5-1/2 18.24#	1530	300	500	118	38	2-7/8IF	90