OREANDA-NEWS. BelNIPIneft engineers designed and tested a jet pump.

This device is intended to reduce the density of flush fluids used for drilling of producing horizons with abnormally low reservoir pressure.

Low density biopolymer drilling mud has unique technological properties. It helps to prevent drilling problems and preserve the reservoir properties. The density is reduced by injecting gas into the drilling mud. To perform this operation, a nitrogen compressor station has been used before. As an alternative, the ejection jet pump (disperser) was offered by BelNIPIneft.

The device was tested on wells of Yuzhno-Ostashkovichskoye, Rechitskoye and Tishkovskoye fields. The use of pump for injection of gas into the drilling mud resulted in reduction of density to the target values. And, when used together with the standard cleaning equipment, the pump obviated the need for a compressor station.