TPCO TP-CQ Premium Connection: Published Field Applications and Custom Accessory Support

TPCO’s published records include TP-CQ thermal-recovery casing used in a CNOOC offshore project, alongside evaluation testing involving organizations in China, the UK and the UAE. SWS supports buyers seeking matching custom accessories.

For buyers sourcing TP-CQ pup joints, crossovers or other threaded components, two questions often come together: what published experience supports the connection, and where can project-specific accessories be manufactured?

Official information from Tianjin Pipe Corporation (TPCO) provides useful background, including a documented offshore application with identifiable quantities and operating context.

TP-CQ Casing Used in 28 Offshore Wells

In an October 2022 announcement, TPCO reported that its TP-CQ thermal-recovery casing had been run in 28 wells in CNOOC’s Lüda North block in China’s Bohai Sea.

The reported supply totalled approximately 2,000 tonnes, with a maximum well depth of 2,350 metres and an average depth of 2,100 metres. TPCO described the application results positively. [1]

These figures relate to the specific thermal-recovery casing project reported by TPCO. They are field-application data, rather than universal pressure, temperature or depth ratings for every TP-CQ product.

Development and International Evaluation

TPCO states that TP-CQ was developed with PetroChina’s Changqing Oilfield in 2001. Its official TP-series introduction also reports evaluation tests involving the UK’s OSI (NAMAS) laboratory, China’s TGRC and ADCO in the UAE. [2]

This establishes a published evaluation history. The reference to ADCO concerns evaluation testing; it does not, by itself, identify an overseas field installation or supply quantity.

From a Specified Connection to the Required Accessory

Once TP-CQ is specified in a project, buyers may also need short-length pup joints, crossovers between different connections, couplings or threaded tool components.

These accessories require more information than the connection name alone. Size, weight or wall thickness, material grade, bore, overall length and pin/box configuration must be reviewed together.

Project-specific connection data and approved technical requirements remain the basis for manufacturing and inspection.

TP-CQ Accessory Inquiries at SWS

Jiangsu Service Petroleum Technology Co., Ltd. (SWS) holds TPCO premium connection threading authorization and welcomes TP-CQ accessory inquiries, subject to confirmation of the applicable authorization scope.

SWS supports custom pup joints, crossovers, couplings and drawing-based components, including customer-supplied material. The minimum order quantity for premium connection products is one piece. Urgent requirements can be assessed against material availability and production scheduling.

Need TP-CQ accessories for a tender, replacement requirement or custom assembly? Send your drawing or item list to SWS.

Include the connection designation, size, material, quantity and required delivery date. Applicable authorization, inspection and quality-document requirements can be reviewed with your inquiry.