Patent ID: 8002031
Filing Date: 2011-08-23
Classification: E21B

Abstract:
1. An independent measuring and processing probe designed to be lowered in a tube to be installed temporarily at the bottom of a well, said independent measuring and processing probe including: deployable anchoring resources capable of anchoring the independent measuring and processing probe to a casing at the bottom of the well, wherein the independent measuring and processing probe has no mechanical link to the surface, a container including a set of sensors, at least one of which iasaid sensors being a seismic sensor, recording resources, and resources for processing measurements provided by the sensors, and a central body having a longitudinal part in a form of a U-shaped channel which extends along a longitudinal axis between two parts, said parts being opened along a center along the axis of said parts by an orifice, said U-shaped channel being shaped to serve as a housing for the container, wherein the anchoring resources comprise two pairs of bowed elastic blades, wherein a first end of one blade of each pair of bowed elastic blades is mounted to a sliding element located at one end of the probe, in line with the central body, a first end of the other blade of each pair of bowed elastic blades is mounted on the central body, at another end of the probe, said sliding element including the orifice passing along the longitudinal axis in order to define a free passage between the top and the bottom of the probe throughout the whole length of the probe, while a second end of both of the elastic blades of one of the pairs of bowed elastic blades is connected to opposite ends of the container so that said container lies along the longitudinal axis between the two elastic blades in front of the U-shaped channel, wherein the sliding element is adapted to slide along the longitudinal axis of the probe between a first position, wherein each blade of each pair of the bowed elastic blades is bowed with respect to the central body when the sliding element is unrestrained, and a second position, wherein each blade of each pair of the bowed elastic blades is stretched and adopts a rectilinear shape and the container is retracted within an empty space of said U-shaped channel, and said parts of the probe and the U-shaped channel define an opening throughout the whole length of the probe.