Views: 0 Author: Site Editor Publish Time: 2024-09-19 Origin: Site
As oil and gas exploration and development shift to deep layers, deep water and unconventional oil and gas, the depth of wells continues to increase and the horizontal section continues to lengthen. The design capacity of land rigs requires a horizontal section of 3,000 meters.
As the competition in the oil and gas industry intensifies, the requirements for increasing the speed and efficiency of drilling are becoming more and more urgent. The key parameters such as pump pressure and mechanical speed of drilling have been greatly improved, and the technology and equipment need to be upgraded accordingly.
JJC founder Li Xuejun accidentally saw a "Practical Technology of Mechanical Seal" while reading a book in Xinhua Bookstore, determined to apply mechanical seal technology to oil drilling washpipe
He led a team to do what he said, and the first test accidentally achieved the expected results, which was difficult to repeat later. For five years, JJCers insisted on it and iterated 34 prototypes.
On-site trial began in 2014,at land rig 70010 Jidong Oilfield, onboard offshore rig Shengli 4 and Shengli 8 of Sinopec. Both CPOE 15 and 16 of CNPC used JJC mechanical seal washpipe.
During the three years of industrial reliability testing, JJC has tracked, investigated, and recorded multiple trial sites of mechanical seal washpipe to complete the verification of industrial reliability.
Completely independent research and development, JJC’s American and Chinese Platent.
JJC’s patent technology of New balanced mechanical seal
High-performance composite ceramic friction pair material can be applied to top drives of major brands in the market immediately
Performance and reliability are widely recognized and praised
| Technical Specifications | ||
| Bore Size | 76.2 mm(3.0”) | 101.6 mm(4.0”) |
Working Pressure | 52.5 MPa(7,500 psi) | |
| Drilling Fluid | Water or Oil Based | |
| Dimensions (H X OD) | 368.3 mm x 241.3 mm (14.5” x 9.5”) | 419.1 mm x 266.0 mm (16.5” x 10.5”) |
| Weight | 40 kg (90 lbs | 50 kg (110 lbs) |
The static ring and the rotating ring adopt high-performance composite ceramic material which is wear-resistant, corrosion-resistant and high-temperature resistant. Majority parts of the product is made of high-strength stainless steel, which can withstand 120℃ high temperature and 52.5 MPa high pressure. Working life under operating can up to 1000-1500 hours with high pressure.
JJC’s patented floating structure design，can be applied to top drives of major brands in the market immediately.
The preloading nut of the elastic spring plays a role of positioning and preloading the upper and lower sealing rings. Only one ratchet wrench can be used to complete the seal ring replacement in 10 minutes, which significantly improves work efficiency, reduces labor intensity, and enhances work safety.
Safety benefits: significantly reduce the risk of underground safety accidents
When maintaining the washpipe, the mud circulation must be stopped. The more the mud circulation stops, the longer the time, the greater the underground safety hazards.
Sticking of tool Well collapse Well blowout
Safety benefits: significantly reduce the labor intensity and safety risks of operators
The maintenance of washpipes is a high-altitude operation, and the operation space is limited. There are hidden dangers to personnel safety in high-intensity operations:
Packing-type washpipe maintenance
The packing-type washpipe assembly is about 50kg. When maintaining, use a sledgehammer to hit the union to replace the washpipe assembly. The labor intensity is high and two people are required to work together.
There is cross-operation risk
Small working space, there is a risk of falling objects
High labor intensity and risk of injury
Maintenance of JJC washpipe
JJC static ring and rotating ring is about 2kg, and only a ratchet wrench is needed to replace the sealing ring during maintenance.
Economic benefit: The comprehensive use cost is significantly reduced
