Hot Sale Petroleum Machinery Parts Cu cUL, CB Casing Master Bushing, and Insert Bowls for Rotary Table Zp175 Zp275 Zp205 Zp375

Product Description

Product Description

In oilfield drilling and production, the casing string is critical for stabilizing wellbores and ensuring smooth oil and gas extraction. Casing bushing and liner are key supporting components that optimize casing connection, enhance wellbore performance, and extend well service life. This article outlines their core functions, main types and material selection.

1. Casing Bushing: Core for Connection Optimization

Casing bushing (or adapter bushing) is a precision cylindrical component that solves connection issues between different-spec casings or casings and downhole tools (wellheads, blowout preventers). It enables seamless size transition via threads or interference fit while ensuring connection tightness and mechanical strength.

1.1 Core Functions

• Specification Adaptation: Bridges size gaps between casings of different diameters/wall thicknesses for various well sections, ensuring casing string integrity.
• Sealing & Pressure Bearing: Forms reliable seals to prevent fluid leakage and bears downhole high pressure, guaranteeing operational safety.
• Joint Protection: Covers weak joints to reduce wear from well walls and corrosion from formation fluids.

1.2 Types & Material Selection

1. Threaded Bushing: Widely used with (STC, LTC, BTC) or special threads; easy to assemble, suitable for conventional wells.
2. Interference Fit Bushing: Thread-free, anti-loose, ideal for high-vibration/high-pressure wells (horizontal, deviated wells).
3. Corrosion-Resistant Bushing: Made of 316L/duplex stainless steel or surface-treated for high-sulfur/high-chloride wells.

Materials: High-strength alloy steel (4130, 4140); heat-treated alloy steel for ultra-deep/high-temperature wells.

Detailed Photos

Model	Applicable types of rotary table(in)	Part Number	Tubulars OD(in)
MSS(Solid)	171/2-23	Insert bowl 1011	23/8-75/8
		Extended insert bowl 1024	23/8-85/8
	271/2	Insert bowl 1022	23/8-75/8
		Extended insert bowl 1025	23/8-85/8
		Insert bowl 1026	95/8-103/4
		Insert bowl 2002	113/4-133/8
MSS(Split)	171/2-271/2	-	23/8-75/8
MSPC(Solid)	201/2-221/2	Insert bowl 1809	23/8-85/8
		Insert bowl 1902	95/8-103/4
		Master bushing1805-1	113/4-133/8
		Master bushing19333	113/4-133/8
	23-271/2	No.3 Insert bowl 1810	23/8-85/8
		No.2 Insert bowl 1904	95/8-103/4
		No.1 Insert bowl 1903	113/4-133/8
MDSP(Split)	171/2-201/2	-	23/8-85/8
		-	23/8-85/8
MPCH	371/2	No.3 Insert bowl 6608	23/8-85/8
		No.2 Insert bowl 6609	95/8-103/4
		No.1 Insert bowl 6610	113/4-133/8
	491/2	MPCH371/2	23/8-133/8