Technology

Sleeve type propellant perforation fracturing technology

application scope

The propellant is used to ignite the propellant outside the gun by using the hot metal particles generated by the projectile. The propellant burns to produce a large amount of high temperature and high pressure gas, which acts directly on the projectile hole, impacting and scouring the hole and fracturing the formation, creating multiple radial fractures in the formation around the hole and directly accompanying the thermochemical action in the target section.

technical characteristics

1. Increased energy utilization efficiency of high-temperature and high-pressure gases;
2. It is possible to achieve simultaneous construction of multiple layers and sections in a single blasting process;
3. The energy generated is greater than that of ordinary composite perforation;
4. Installing a storage type pressure time recording instrument at the tail of the perforating device can enable
Record and store the pressure changes of the liquid in the wellbore during perforation.

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technical advantage

The sleeve shot fracturing technology adopted by our company is a multi-purpose composite function technology. It effectively improves the efficiency of energy utilisation, reduces engineering time and simplifies the construction process. At the same time, the loading structure can be adjusted according to the P-T curve, and a more suitable solution can be designed and adopted to cope with the downhole situation, effectively solving the problems encountered by our customers. The company has carried out a number of technical services for oil and gas wells in major oil fields, with a total efficiency rate of 85%.