Why you must use replacement screens conforming to API RP 13C
Many manufacturers are labeling their screens as “conforming to API RP 13C. But few companies have the API RP13C testing report. They do not really know what does API RP13C screen means? How they can say their screens are “conforming to API RP 13C. They must supply the test report and data from the authorized third party as support and confirm.
GN is the only one Chinese company who has the API RP 13C third party test report according to API RP 13C. This means all the data on GN made screen labels are from lab test, it is accurate. But most other China competitors cannot offer the API RP13C testing report. If clients get screen from other suppliers without API RP13C testing report, or they do not have the full line report to cover all API sizes per API RP13C standard. It means the data on the screen tag or label is not accurate. Maybe the API 140 shale shaker screen they sold is actually API 100 or API 170. With the wrong screen opening, rig site people are difficult to control the mud weight and mud flow. That is the root reason that why many big companies do not accept these types of screen from the suppliers without full line API RP13C testing report. They only accept API RP 13C compliant screens.
GN Solids Control is one of the biggest manufacturers for oil field replacement shale shaker screens. GN Solids Control has Research and Development department specialized on high quality replacement screens development. GN owns the full line production equipment to make composite material screens by from raw material to final screen. It ensures a better quality control for all process and materials.
GN Solids Control can make high quality replacement screens for most of the popular shaker models. Furthermore, GN Solids Control can make customized design screens, or make screens with clients’ legal company name, logo, package and branding.
Crude oil sludge treatment process
GN design and manufacture crude oil sludge treatment system. The main principle of process is by heating the oil sludge and wash the oil sludge with chemical and separate by GN separation equipment to get final product of clean oil, clean water and environmental friendly solids.
The process of GN Crude Oil Sludge Treatment is as below:
1) Pick up oil crude oil sludge.
Depends on the condition of the oil sludge, a sludge vacuum pump can be used to pump solids and mixture of liquid. The excavator will be used to pick up sticky and high solids content crude oil sludge.
2) Pre-Mixing with heat and chemical
After pick up from the sludge pit, diesel or water will be added to the mixing tank to dilute the oil sludge, and the tank is design with heating pipelines to heat up the oil sludge to be 70 c degree. Oil sludge treatment chemicals will be added during the mixing process to reduce the viscosity and enhanced the separation of the oil sludge.
3) Primary screening separation.
After mixing and washing, the mixture of sludge will be pumped to the shale shaker for separation of coarse solids. Typically, 2mm screen will be used on the shale shaker.
4) 2 Phase decanter centrifuge separation
After removal coarse solids by shale shaker, the fluid with fine solids will be pump to the two phase decanter centrifuge for fine solids separation. The majority of the solids will be separated by the decanter centrifuge. Typically, the solids discharged will be have oil on solids below 2%. And the solids will be sent to thermal desorption unit or further treatment.
5) 3 Phase separation
After fine solids separation by decanter centrifuge The fluids will be feed to a 3 phase disc centrifuge for separation of oil, water and solids. The recovery oil can be sold to Refinery Company.
6) Water treatment Process.
The water discharged from disc centrifuge will be sent to a water treatment equipment to get clean water. And the recovery water can be reused for washing the oil sludge again.
You can visit here to check the video of our oil sludge treatment system below:
http://www.gnsolidscontrol.com/video/oil-sludge-treatment-test-unit-working-video
Oil Based Drilling Cuttings Treatment System for CNPC Project
A new set of drilling cuttings treatment plant has been ready for shipment recently. It is a waste management project for a CNPC project in China. The drilling cuttings treatment plant will be used to treat oil based mud and cuttings.
As the waste management plant will be used to treat to oil based mud and cuttings, below processing equipment are included in the quotation:
1) Vertical cuttings dryer is major equipment used to oil based mud and oil based cuttings. 1 each GNCD930D vertical cuttings dryer is included in the system. Vertical Cutting Dryer uses centrifugal force to dry drilled solids in oil or synthetic base fluids. GN Vertical Cuttings Dryer specially designed not only for oil based mud, SBM but also can be used for water based drilling waste.
2) Decanter centrifuge is the second stage separation equipment in the cuttings treatment plant.
3) Screw pumps are used in the drilling cuttings treatment system as flush pump for vertical cuttings dryer and centrifuge feeding pump. Many people are wondering, screw pump costs higher, why GN uses screw pump to flush the vertical cuttings dryer. Water pump price is much lower than the screw pump. Can water pump be used as flush pump for vertical cuttings dryer? The answer is No. As vertical cuttings dryer is used to treat oil based cuttings, water cannot be used for flushing. Clean oil based mud or diesel oil should be used for flush.
GN Solids Control is not only an equipment manufacturer. Another advantage of GN Solids Control is to offer complete solution. So besides the processing equipment decanter centrifuge, vertical cuttings dryer, and feeding pumps, GN Solids Control also offer the holding tank and explosion proof control system in order to offer complete solution.
Besides this set oil based cuttings treatment system, GN solids Control offered many other waste management system for CNPC project.