High Performance Mechanical Seal Washpipe

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JJC TEC High Performance Mechanical Seal Washpipe

Part 1.Two major trends in modern drilling

1.Drilling depth and drilling difficulty becomes increased.

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.

2.Drilling speed and efficiency becomes more important

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 accordinglydrilling equipment


Part 2.JJC TEC Development history of Mechanical Seal Washpipe

1.2009 year ⦁ Ideas derived from textbooks

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

2.2009-2014 year ⦁ Five years of constant iteration ,the 34th version of the prototype finally been introduced

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.

3.2014 year ⦁ Field industrial test start

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.

4.2015-2018 year ⦁ After the trial in the oil field Product maturity and industrial reliability are verified.

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.

5.2019 year ⦁ Verification complete,Marketing is started


Part 3.Technical Specifications of Mechanical Seal Washpipe

  • 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)

Part 4.Outstanding Advantages of Mechanical Seal Washpipe

1.Long working life:

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.

2.Wide range of application:

JJC’s patented floating structure design,can be applied to top drives of major brands in the market immediately.

3.Maintenance is quick and easy:

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.

Part 5.Significant Benefits of Mechanical Seal Washpipe


1.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.

Significant Benefits


2.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.



3.Economic benefit: The comprehensive use cost is significantly reduced



Part 6.International Pioneer of Mechanical Seal Washpipe

The JJC technical craftsman team continues to innovate, and able to overcome world problems, can surpass the international leading level in an all-round way.

wise choice for modern drilling

CONTACT US

Phone: +86 188-1046-1537
Email:sales@jjcpe.com
Wechat:+86 188-1046-1537
Add:1101 Tower A, 15 Ronghua South
Rd,Beijing 100176, China

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