Shandong Shouguang Kunlong Petroleum Machinery Co., Ltd.

Founded in 2002, Shandong Shouguang Kunlong Petroleum Machinery Co., Ltd. (Kunlong Shares) is a Chinese high-tech enterprise specializing in research and development,, manufacturing, sales, and technical services for petroleum equipment. The company also holds API 11B and API 11AX certificates, and its products fully comply with API requirements in terms of structural dimensions and mechanical performance indicators.

Kunlong produces polished rods, including plain polished rods, sprayed metal alloy steel polished rods, and tungsten-plated alloy steel polished rods. Its sucker rods include pony rods, K/DA/DS/HA/HS/HY plain sucker rods, tungsten-plated anti-corrosion sucker rods, surface organic-coated anti-corrosion sucker rods, sinker bars, hollow rods, and special torque rods for PCPs. Its TA/TAS-class couplings are available in full-size, slim-hole, and sub-coupling types.

   

Kunlong manufactures oil pump models including RHAC, RHBC, RWAC, RWBC, RWT, RXBC, THC, THM, and RSTC, along with associated pump accessories.

Kunlong also has design and manufacturing capabilities for downhole PCPs, surface drive units, PCP-dedicated rod strings, and electric submersible PCPs. Its products feature high machining accuracy and design-compliant performance, making them suitable for heavy oil wells, highly deviated wells, horizontal wells, and sand-prone wells.