Oil Well Casing Pipe

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Description

Oil well casing pipes are crucial components in oil drilling and production, designed to stabilize the wellbore, prevent contamination, and enable the safe and efficient extraction of hydrocarbons. These steel pipes are inserted into the wellbore after drilling and are typically cemented in place to ensure structural integrity and operational efficiency.

Specifications

Standards and Grades: Casing pipes come in various API specifications and grades like API 5CT J55/K55, N80, L80, P110, and others, each tailored for different operational requirements.
Sizes and Thicknesses: Available in a range of outer diameters (e.g., 4.5” to 20” for P110 Casing) and wall thicknesses (e.g., 0.244” to 0.875”), these pipes can accommodate diverse wellbore sizes and operational demands.
Lengths: Offered in API standardized length ranges (R1, R2, R3), with longer lengths like R-3 being common for reducing threaded connections needed for the casing string.
Couplings and Threads: Equipped with various types of thread connections (e.g., BTC, LTC, STC) and couplings to ensure secure and leak-proof connections.

Features

Support and Stability: Provides structural support to the wellbore, preventing collapse during operations.
Environmental Safety: Isolates and protects freshwater zones, preventing contamination and ensuring environmental safety.
Pressure Control: Effectively seals off high-pressure zones, maintaining well pressure and preventing blowouts.
Versatility: Suitable for different drilling depths and geological conditions, with customization options available for specific project needs.

Applications

Oil well casing pipes are used in onshore and offshore drilling operations, serving various purposes like surface wellhead & mudline suspension, subsea wellhead protection, and more. They are essential for ensuring the safe and efficient operation of oil wells, including drilling, production, and workover operations.

Specification

Size	Linear Mass lb/ft	Outside Diameter		Wall Thickness		Type of end-finish
		inch	mm	inch	mm	Grade
		inch	mm	inch	mm	H-40	J-55 K-55	M-65	L-80 C-95	N-80 1,Q	C-90 T-95	P-110	Q-125
4 1/2''	9.5	4.5	114.3	0.205	5.21	PS	PS	PS	-	-	-	-	-
	10.5	4.5	114.3	0.224	5.69	--	PSB	PSB	-	-	-	-	-
	11.6	4.5	114.3	0.25	6.35	--	PSLB	PLB	PLB	PLB	PLB	PLB	-
	13.5	4.5	114.3	0.29	7.37	--	--	PLB	PLB	PLB	PLB	PLB	-
	15.1	4.5	114.3	0.337	8.56	--	--	-	-	-	-	PLB	PLB
5''	11.5	5	127	0.22	5.59	--	PS	PS	-	-	-	-	-
	13	5	127	0.253	6.43	--	PSLB	PSLB	-	-	-	-	-
	15	5	127	0.296	7.52	--	PSLB	PLB	PLB	PLB	PLB	PLB	-
	18	5	127	0.362	9.19	--	--	PLB	PLB	PLB	PLB	PLB	PLB
	21.4	5	127	0.437	11.1	--	--	PLB	PLB	PLB	PLB	PLB	PLB
	23.2	5	127	0.478	12.14	--	--	-	PLB	PLB	PLB	PLB	PLB
	24.1	5	127	0.5	12.7	--	--	-	PLB	PLB	PLB	PLB	PLB
5 1/2''	14	5.5	139.7	0.244	6.2	PS	PS	PS	-	-	-	-	-
	15.5	5.5	139.7	0.275	6.98	--	PSLB	PSLB	-	-	-	-	-
	17	5.5	139.7	0.304	7.72	--	PSLB	PLB	PLB	PLB	PLB	PLB	-
	20	5.5	139.7	0.361	9.17	--	--	PLB	PLB	PLB	PLB	PLB	-
	23	5.5	139.7	0.415	10.54	--	--	PLB	PLB	PLB	PLB	PLB	PLB
	26.8	5.5	139.7	0.5	12.7	--	--	-	-	-	P	-	-
	29.7	5.5	139.7	0.562	14.27	--	--	-	-	-	P	-	-
	32.6	5.5	139.7	0.625	15.87	--	--	-	-	-	P	-	-
	35.3	5.5	139.7	0.687	17.45	--	--	-	-	-	P	-	-
	38	5.5	139.7	0.75	19.05	--	--	-	-	-	P	-	-
	40.5	5.5	139.7	0.812	20.62	--	--	-	-	-	P	-	-
	43.1	5.5	139.7	0.875	22.23	--	--	-	-	-	P	-	-
6 5/8''	20	6.625	168.28	0.288	7.32	PS	PSLB	PSLB	-	-	-	-	-
	24	6.625	168.28	0.352	8.94	--	PSLB	PLB	PLB	PLB	PLB	PLB
	28	6.625	168.28	0.417	10.59	--	--	PLB	PLB	PLB	PLB	PLB
	32	6.625	168.28	0.475	12.06	--	--	--	PLB	PLB	PLB	PLB	PLB
7 3/4''	46.1	8.625	219.08	0.595	15.11	--	-	-	P	P	P	P	P
8 5/8''	24	8.625	219.08	0.264	6.71	--	PS	PS	-	-	-	-	-
	28	8.625	219.08	0.304	7.72	PS	-	PS	-	-	-	-	-
	32	8.625	219.08	0.352	8.94	PS	PSLB	PSLB	-	-	-	-	-
	36	8.625	219.08	0.4	10.16	--	PSLB	PSLB	PLB	PLB	PLB	PSLB	-
	8.625	219.08	0.45	11.43	-	--	PLB	PLB	PLB	PLB	PLB	-	-
	44	8.625	219.08	0.5	12.7	--	-	-	PLB	PLB	PLB	PLB	-
	49	9.625	244.28	0.557	14.15	--	-	-	PLB	PLB	PLB	-	PLB

Quality Assurance

Each casing pipe undergoes rigorous quality checks, including visual inspections, dimensional checks, mechanical tests (tensile strength, yield strength, elongation), chemical analysis, NDT tests (e.g., Magnetic particle, Ultrasonic Test, Hydrostatic Test), and more to ensure compliance with industry standards and optimal performance in the field.

Manufacturing Process

Casing pipes are made using seamless or ERW (Electric Resistance Welded) manufacturing processes, ensuring high strength and durability.

Standards Compliance

These pipes comply with API and ISO standards, which define manufacturing methods, joint types, wall thickness, steel grade quality, chemical and tensile properties, and more.

Additional Information and Services

Customization: Tailored solutions for specific well depths, pressure ratings, and environmental conditions.
Technical Support: Professional guidance for selecting the right casing pipe for your project.
After-Sales Services: Comprehensive after-sales support including logistics, installation guidance, and troubleshooting.

Contact for Quote

For inquiries, quotes, or further technical details, contact us here.