TPCO TP-G4 Premium Connection Recognized for Deep and Ultra-Deep Well Applications

TPCO’s TP-G4 premium connection development and industrial application project received a Science and Technology Progress Second Prize from the China Steel Construction Society, according to the company’s announcement published on November 27, 2025. [1]

The announcement also identifies an important field reference: TP-G4 had been successfully applied in PetroChina’s Shendi Chuanke 1 well project. TPCO reported that the product had achieved commercial-scale application across more than 20 domestic and overseas oil companies since 2022. [1]

From Product Development to Field Application

For customers researching Chinese premium connections, named projects and documented operating experience provide useful context alongside product specifications.

An earlier TPCO announcement, published in October 2022, reported the first successful installation of its TP-G4 casing in Tuha Oilfield. The casing was run to 6,400 metres, with satisfactory pressure-test and cementing results. The report also describes a project-specific TP-G4 (HT) casing field-use guide prepared to support the operation. [2]

That account illustrates the work accompanying a connection’s field introduction: technical discussions with the operator, confirmation of the casing programme, and guidance covering product parameters, running practices, and handling precautions.

Matching the Exact Connection to the Project

The Tuha report’s reference to TP-G4 (HT) also highlights the importance of a complete connection designation. A project enquiry should identify the exact version required, together with the size, wall thickness or nominal weight, material grade, and applicable technical documents.

For pup joints and crossovers, those details need to be carried through to each end of the component. Custom length, bore, and end configurations should be reviewed together so that manufacturing and inspection requirements are clear before production.

Authorized TP-G4 Thread Machining Support from SWS

TP-G4 is explicitly listed on SWS’s TPCO authorization certificate. Within the applicable licence agreement, SWS supports pin-thread and single-ended box-thread machining for project accessories.

Customers can submit enquiries for custom pup joints, crossovers, and other threaded components. SWS accepts customer-supplied material and can assess material supply and component manufacturing against approved drawings.

Our minimum order quantity for premium-thread products is one piece. For small-batch or urgent requirements, we review material availability, machining feasibility, inspection arrangements, quality documentation, and the requested delivery schedule.

If your project specifies TP-G4, send SWS the full connection designation, drawings, material grade, quantity, and required delivery date. We can review the applicable authorization scope and discuss a manufacturing solution for your accessories.