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Steel Material Oil Well Drilling Tools Forging Circulating Sub Blue Colour

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Steel Material Oil Well Drilling Tools Forging Circulating Sub Blue Colour

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Brand Name :	TIPTOP
Model Number :	Circulating sub
Certification :	Inspection Certificate
Price :	Negotiation
Payment Terms :	T/T, L/C, D/A, D/P
Supply Ability :	20000 pcs per month
Delivery Time :	20~30 days

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Steel Material Oil Well Drilling Tools Forging Circulating Sub Blue Colour

Oil Well Drilling Tools - All specifications circulating sub API standard

Introduction

Circulating sub is installed in the top of drilling stem. The upper thread is connected with circulating system of casing, tubing, and union thread to circulate the drilling fluid. It divided into casing circulating sub, tubing circulating sub, union circulating sub and tee sub.

Construction
The circulating sub during running casing is equipped with casing pin thread on one end or DP thread and DP box thread or union thread on other end.

Specification:

Pump-in sub

Model	Specifications	Exradius OD mm(inch)	Inradius ID mm(inch)	Connecting thread
BJST86	2-3/8	85.7(3 3/8)	38.1(1 1/2)	2A10×2A11×2″1502
BJST121	3-1/2	121(4 3/4)	57.2(2 1/4)	310×311×2″1502
BJST168	5	168.3(6 5/8)	71.4(2 13/16)	410×411×2″1502
BJST178	5-1/2	178(7)	71.4(2 13/16)	520×521×2″1502

Circulating sub

Model	Specification size	Exradius OD mm(inch)	Inradius ID mm(inch)	Connecting thread
XJZ86	2-3/8	85.7(3 3/8)	31.8	2A11×2″1502
XJZ105	2-7/8	104.8(4 1/8)	38.1(1 1/2)	211×2″1502
XJZ121	3-1/2	121(4 3/4)	44.5(1 3/4)	311×2″1502
XJZ168	5	168.3(6 5/8)	44.5(1 3/4)	411×2″1502
XJZ178	5-1/2	177.8(7)	44.5(1 3/4)	521×2″1502
XJZ178B	7	177.8(7)	44.5(1 3/4)	7 BCSG P×2″1502union
XJZ245	9-5/8	244.5(9-5/8)	44.5(1 3/4)	9-5/8 BCSG P×2″150union
XJZ340	13-3/8	340.1(13-3/8)	44.5(1 3/4)	13-3/8 BCSG P×2″1502union
XJZ473	18-5/8	473(18-5/8)	44.5(1 3/4)	18-5/8 BCSG P×2″1502union
XJZ508	20	508(20)	44.5(1 3/4)	20 BCSG P×2″1502union

Casing and drill pipe circulating sub

Specification size	Casing specifications	Exradius OD mm(inch)	Inradius ID mm(inch	Connecting thread
XJZ178B	7	178(7)	71.4(2 13/16)	NC50 B*7 BCSG P
XJZ244.9	9-5/8	244.5(9-5/8)	71.4(2 13/16)	NC50 B*9-5/8 BCSG P
XJZ340.1	13-3/8	340.1(13-3/8)	71.4(2 13/16)	NC50 B*13-3/8 BCSG P
XJZ473	18-5/8	473(18-5/8)	71.4(2 13/16)	NC50 B*18-5/8 BCSG P
XJZ508	20	508(20)	71.4(2 13/16)	NC50 B*20 BCSG P

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