Abstract: The disclosure relates to a system, downhole device and method for monitoring a wellbore, in particular in a lateral section, during stimulation, with an equipment enabling retrieval in many conditions. The method includes monitoring the wellbore with a distributed fiber optic sensor to determine one or more characteristics of the stimulation operation using detected backscattered optical signals on the distributed fiber optic sensor. The cable is retrieved by exerting a traction force. The disclosure also relates to a downhole device for receiving a cable and retainers to maintain the cable and having a weakpoint configured to break when subjected to a force along the longitudinal axis greater than a predetermined threshold. The system comprises the cable having the distributed fiber optic sensor, the downhole device and a surface monitoring system for determining the characteristic of the stimulation operation using detected backscattered optical signals on the distributed fiber optic sensor.

Abstract: A well-logging system includes a first downhole tool coupled to a first cable for conveying the first downhole tool along a wellbore. A second downhole tool having a housing is coupled to a second cable for conveying the second downhole tool along the wellbore. The well-logging system includes a cable guide having a chassis structure coupled to the housing and a sleeve coupled to the chassis structure and disposed about the first cable. The first cable is configured to translate along the sleeve such that the sleeve facilitates guided movement of the first downhole tool relative to the second downhole tool.

Abstract: A well-logging system includes a first downhole tool coupled to a first cable for conveying the first downhole tool along a wellbore. A second downhole tool having a housing is coupled to a second cable for conveying the second downhole tool along the wellbore. The well-logging system includes a cable guide having a chassis structure coupled to the housing and a sleeve coupled to the chassis structure and disposed about the first cable. The first cable is configured to translate along the sleeve such that the sleeve facilitates guided movement of the first downhole tool relative to the second downhole tool.