Patents Assigned to PASSERBY INC
  • Publication number: 20190063171
    Abstract: The present down-hole equipment system for hydraulic fracturing includes a circulation port and jet pump that together provide two different methods for removing residual fracking fluids in a well after the hydraulic fracturing operation has been completed, thereby making it easier to remove the fracking assembly from the well bore after the fracturing has been performed. The system affords in a very short time to clean the well from unstable proppant after hydraulic fracturing and to make well completion right away.
    Type: Application
    Filed: August 25, 2017
    Publication date: February 28, 2019
    Applicant: PASSERBY INC
    Inventor: Marie PASVANDI
  • Publication number: 20130319651
    Abstract: The proposed hydro-mechanical slot-type perforator enables simultaneously performing at least two slots in a production column. The perforator includes a casing, upper and lower pistons movable within the casing, a cutting unit driven by the pistons and carrying extendable cutting tools, and, optionally, a retractable mechanism fixing the perforator for transportation. The extension is provided by rotatable shackles, or balance beams, or a combination thereof. The lower piston is moved by pressurized fluid supplied through hydraulic channels or a hydraulic system, made in the casing. The shackles rotate around axles being spaced apart, or coincided. The cutting tools can be mounted on the shackles' movable parts, and, when mutually interacted, oppositely extend the cutting tools during countermovement of the pistons. The cutting tools can be mounted in the balance beam's shoulders, or can represent sharp edges thereof.
    Type: Application
    Filed: February 9, 2012
    Publication date: December 5, 2013
    Applicant: PASSERBY INC
    Inventor: Marie Pasvandi