Cutting and disassembly devices
There is a great variety of explosive cutting devices developed at RFNC-VNIIEF that offer some unique qualities. These are special portable explosive devices of single-use type and reusable facilities, both using high explosive materials. All of them are highly efficient. With such technologies, it is possible to handle the materials not cuttable by a regular technique. They can be operated in difficult of access locations. One of the success stories with international commercialization of explosive cutting technologies is that several designs have been developed for underwater cutting of support legs and pipe structures in removal of offshore oil and gas production platforms. VNIIEF's scientists have developed a device of combined shattering and blast effect to cut multiple pipe structures of five concentric pipes differing in diameter and with grout filling the gap between them. Comparable to its foreign analogs in strength, this device carries a two times smaller explosive load.
Explosive pressure generator for crushing stone blocks
Powerful pulsed multiple-action energy source. Assigned for production of block stones in mining and construction industries. Experimental sample was tested. Investments are required for production of the commercial device Patented in the RF
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Explosive cutting tool
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Assigned for interior cutting of cast-in-block steel tubes with up to 100 mm walls, buried in ground or submerged in water. Capable to disassemble: stationary sea-based gas and oil platforms, tubes in overage oil and gas wells, different metal structures to be further utilized. Patented in the RF |
Safety cutting tool
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Assigned for external cutting of tubes, when heat exchangers, steam generators, heaters or pipelines, used for pumping aggressive, poisoning or another liquids or gases inside a production facility, are being dismantled. The present cutting tool is a cumulative explosive device. Commercial cumulative charges of small caliber can be used as the cutting element of the device |
Explosive cutter
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Assigned for interior cutting of: multi-tube conductors (up to 5 tubes), the spacing between which is filled with low-hard medium (concrete solution or water), buried in ground or submerged into water, monolithic metal tubes with rather thick wall (over 100 mm), when other devices, based on the principle of rarefied shock waves, are low effective. Application areas: disassembly of marital gas and oil platforms; disassembly of overage tubes in oil and gas wells; cutting of wedged drill pipes. Principle of operation – high explosive. Peculiarities: high effectiveness, simple construction, no driving, safe electric detonators, two-point initiating system. The version assigned for cutting the five-tube conductor of oil and gas platform with 150 mm inner diameter and 720 mm outer diameter was designed and tested. The device is tailored to fit the customers requirements depending on the dimensions of tubes, deepness of burial, properties of soil and environmental conditions |
Explosive type facilities for remote disassembly of munitions
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Assigned for: remote disassembly of retired munitions, containing radioactive elements. UVT-1 is capable of cutting five cowling envelopes of aviation fragmentation warheads BCH AB-62 or BCH 9E-1028 of “air-air” class missiles (with a munitions holder substituted). UVT-2 is capable of cutting two anti-tank cumulative warheads BCH 9H-156VB. The facilities consist of an explosive chamber, acceleration unit with guiding grooves, a piston with the cutting element and a holder for munitions. The facilities can be used for disassembly of munitions located inside the protective transportation containers (mounted on KAMAZ and KRAZ vehicles) and in the closest vicinity to arsenals. Do not require any additional energy supplies. Test samples are available. Mobile complex can be designed on order Patented in the RF |