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SNAKE BVT

Multisectional perforating system developed by BVT specialists for increasing the technical and cost-effectiveness of perforation operations in oil and gas wells.

It is consists of:


SNAKE BVT assembled (Ø50÷114 mm)
Perforating system SNAKE             

A universal node for connection and detonation transmission (UU-AT):

  • consists of a transmitter and a receiver;
  • quick-release joint matching various perforating guns (Ø50÷114 mm);
  • maintains integrity after firing that allows to create gun chains with the length of up to 500 m depending on operation environment.

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Specifications and advantages SNAKE BVT

  • SNAKE BVT design utilizes a reliable universal system of inter-section detonation transmission;
  • complete assembling of multi-sectional PA (perforation assembly) can be performed in charge plant or perforation laboratory, and, when starting operation in well, a triggering module should be installed only;
  • quick-disconnecting joint helps to reduce time of assembling/disassembling of a multi-sectional PA during tripping operations at well;
  • with short sections of 0.5-1.0 m with certain casing diameter, inter-section bend may reach 8-10°, this allows deploying SNAKE BVT with 75-80° at a section of about 10-15 m.

N

Specifications

Parameter value for standard size

PKO 50-AT

PKO 63-AT

PKO 73-AT

PKO 89-AT

PKO 102-AT

PKO 114-AT

1

Multi-sectional perforator external diameter, mm

no centralizers

53

63,5

76,5

89

102

114

with centralizers

-

-

-

116

130

141

2

Shot density, holes/m*

20

20

20

20

20

20

3

Charges phasing, ° **

60

60

60

60

60

60

4

Conventional section length, m***

1/2/3/4/5

5

Maximum hydrostatic pressure, MPa

80/103,5

150 ****

130 ****

130 ****

130 ****

120 ****

110 ****

6

Maximum length of assembly of a multisectional perforator for one operation, maximum, m

500

* - different perforation density is available at customer's request;
** - phasing 0°, 45°, 90°, 180° is available at customer's request;
*** - custom section length is available;
**** - high pressure implementation on custom order including supply of high-temperature rotating stop valves.