Import Api Casing Float Collar And Float Shoe — Buy in Bulk from Supplier in China

The Api Casing Float Collar And Float Shoe from Dongying Lake Petroleum Technology Co., Ltd is a spring-driven back-pressure valve assembly designed to guide casing string installation and regulate floating power during run-in. The float collar mounts at a predetermined point in the casing string, while the float shoe attaches at the bottom, together controlling buoyancy to maintain casing integrity during cementing operations. This configuration allows operators to manage hook load and prevent casing collapse from excessive differential pressure during descent into the borehole.

The spring-driven back-pressure valve mechanism provides automatic sealing against reverse flow after cement displacement, a critical function for primary cementing integrity. Standard API casing grades such as H40, J55, K55, N80, L80, and P110 are typical material bases for these components, though buyers should confirm the exact grade and yield strength with the supplier. The valve seat and ball or flapper assembly typically use nitrile or fluorocarbon elastomer seals rated for temperature ranges common in conventional drilling, though specific seal compounds and temperature ratings require supplier verification. Thread profiles conform to API Specification 5CT for casing connections, with buttress or long-round thread forms being standard.

These tools serve oil and gas operators, drilling contractors, and casing service companies running production and intermediate casing strings in vertical, directional, and horizontal wells. Applications include primary cementing in development and exploratory wells, liner hanger systems, and tie-back operations where controlled casing flotation reduces derrick load and improves safety. The float collar enables staged cementing through its back-pressure seal, while the float shoe guides the casing past ledges and cuttings beds at the borehole bottom. Buyers should confirm with Dongying Lake Petroleum Technology Co., Ltd the exact API specification level, casing size range, thread type, temperature rating, and whether the spring mechanism is field-serviceable or requires factory refurbishment.

Dongying Lake Petroleum Technology Co., Ltd operates from Huanghe Road in Dongying, Shandong Province, China, a concentration area for China's oilfield equipment manufacturing sector. The supplier carries an imported tier designation and harbor trust level on the platform. The response确是 response rate of 0.00 percent and zero average response hours indicate no recorded reply activity, so buyers should expect to initiate contact through available channels and allow time for follow-up.

The company's product focus centres on float collars and float shoes for casing operations, with emphasis on spring-driven back-pressure valve designs. The source description does not state years in operation, factory size, production capacity, revenue, client list, or specific API monogram licensing. Buyers should request documentation of API license number, quality management system certification, and traceable mill test certificates for material verification. The Huanghe Road address places the supplier within Dongying's established petroleum equipment cluster, which offers logistical advantages for export through Qingdao or Tianjin ports, though specific export capabilities require direct confirmation.