Docking Perforating System with Integrated Real Time Downhole Measurements

Abstract

This paper presents field results of the first well perforating system integrated with a depth correlation and real time high-speed measurements device, this tool acquires and transmits downhole data to surface in real time while perforating. The docking gun system with plug-in design improves operational safety, efficiency and reliability, whereas downhole measurements help to obtain maximum well productivity by providing real-time downhole wellbore pressure, transient dynamic underbalance and/or overbalance for perforation cleanup and/or well stimulation. The new perforating system consists of two main components: a docking gun system and an advanced measurements module. The docking gun system consists of a compact, plug-in, radio frequency safe, addressable firing system for single and multi-zone sequential perforating applications. The system eliminates port plugs and wellsite arming of detonators, reducing human error and improving overall safety, efficiency, and reliability. The advanced measurements module provides high-frequency transient wellbore pressure, peak acceleration amplitude, and low frequency pressure, temperature, gamma ray, and active casing collar locator. These measurements enable real time confirmation of downhole conditions before, during, and after perforating, with accurate depth correlation even in high chrome tubulars and large casing sizes. This instrumented docking gun system delivered an outstanding field performance, adding value to operators by increasing safety, efficiency and reliability, while at the same time maximizing productivity. This instrumented gun system can be deployed with wireline, tractor or electrical coil tubing. The new docking gun system design reduces human error and the risk of wellsite accidents and failures. With this system we also maximize gun length deployment per run and operational efficiency. In addition, real time downhole measurements of low- and high-frequency wellbore pressure allow optimization of perforating cleanup and stimulation, maximizing productivity and reducing the overall cost per barrel produced.

Análise técnico-econômica do canhoneio de poços do pré-sal brasileiro utilizando diferentes métodos de condução do canhão.

“…By now, it is possible to have real-time information, before available only with further runs. Fast gauges combined with pressure and temperature sensors will provide the details of the perforated zone response right after the detonation(GUEDES et al, 2019). The comparison between the simulated and the actual values can be done while still pulling the gun out of the hole(BAUMANN et al 2013).…”