OIL AND GAS WELL SLOTTING PERFORATION TECHNOLOGY PROFESSIONAL SERVICE

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PREFERENCES FOR USE SLOTTING PERFORATION

Slotting Perforation is possible to use in oil, gas, injection and hydro-geological wells, in vertical, inclined and horizontal wells, newly drilled and old low productivity wells­, in shallow and deep wells, in high-temperature and low-temperature, low-viscosity and high-viscosity wells, in sand and carbonate formations, in shale and thinly interbedded layers, etc.
 
In principle, SPT perforation can be used everywhere, but from experienced practice there are some preferences, when the use of HSP gives a greater positive effect.

 

Newly drilled wells, or old wells with the following criteria:

 

  • developed by gun, cumulative, or abrasive jetting point perforation

  • developed by subsequent hydraulic fracturing, but without water during the whole period of exploitation

  • developed and operated without stimulating methods (except chemical treatment)

  • having no more 1 or 2 exploitation productive intervals

  • having no problems with the water during exploitation

  • having no problems with cement and casing

  • having a very good productive inflow on early or mid-operation periods

  • having currently productive inflow 0-5 bod (low-productivity)

  • having a positive internal layer pressure

  • perhaps the very old, but desirable total period of operation not exceeding 10-15 years

  • currently idle (but possibly even abandonment)

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