Services&Products——一龙恒业

YILONG currently operates 12 advanced workover rigs with ratings of 550 HP, 750 HP, 900 HP, and 1000 HP, capable of performing a wide range of operations in vertical and horizontal wells up to 7,000 meters deep, including barefoot casing retrieval and replacement, logging, cutting, plugging, sidetracking, explosive reshaping, loosening operations, milling, fishing, and recovery of fallen objects; with a proven track record of successful workover projects for leading oil companies such as Sinopec, CNPC, Zhenhua Oil, EOG, Sonatrach, and Naftogaz, YILONG has earned strong recognition for its operational safety, efficiency, and technical excellence.

Applicable conditions

Well failure, such as downhole sand blocking, wax and salt deposit within the shaft, reservoir choke, permeability decreases, collusion of gas-water layer and etc.;

Well string structural damage, such as tubing fracture, tubing joints tripping, casing leakage due to collapse and fracture;

Oil production equipment failure such as oil pumps, electric submersible pumps and progressive cavity pumps failure.

Scope of business

Tripping operation

Including POOH, repair, replacement, and then RIH of failed or damaged tubing, pumping rod, oil pump and other BHAs and tools and pumping, bailing, wax scraping and the like;

Cycle operation within the well

Including sand washing, hot wash, recycle slurry, cement squeezing and etc.;

Rotation operation

Including drilling out sand plug, drilling out the cement plug, reaming, re-drilling, side tracking, casing fixup and etc.

Equipment

Including workover rig , electric control, rotating equipment, pump and cement application, surface facilities, wellhead blowout

preventor, control, barracks and auxiliary equipment system. The accessory equipment and parameters are both perfect . It has been equiped with 2 3/8” drill pipe 2000m, 2 7/8” drill pipe 4000m, 3 1/2”drill pipe 3000m, drill collar, various downhole operation equipment including grinding, sets, milling, fishing, etc. And the well repair equipment and other facilities are also fully equipped with.