Patent ID: 9593574
Date: 2017-03-14
CPC Classifications: E21B

Claim:
1. A well completion sampling system, comprising: tubing extending into a well; a plurality of packers surrounding the tubing and sealing the annulus of the well outside the tubing, the plurality of packers spaced to define voids in the annulus that are substantially free from hydrostatic pressure created by fluids in the well; a plurality of hollow sleeve valves connected to the tubing and having an upper sealing element and a lower sealing element, and a closed position and an open position, each sleeve valve positioned within the tubing at a depth corresponding to a void in the annulus; a plurality of ports extending transversely through the tubing, each port positioned adjacent a sleeve valve so that when the sleeve valve is closed, the lower sealing element is above the port, and when the sleeve valve is open, the lower sealing element is below the port; and a sampling tool for insertion into the tubing, the sampling tool having top and bottom sealing elements, the bottom sealing element of the sampling tool for sealingly engaging the lower sealing element of a sleeve valve, and the top sealing element for sealingly engaging the upper sealing element of the sleeve valve when the sleeve valve is in the open position, the engagement of the bottom sealing element of the sampling tool and the lower sealing element of the sleeve valve fixing the position of the bottom sealing element relative to the lower sealing element so that the movement of the sampling tool down the well after such engagement moves the sleeve valve from the closed position to the open position.