Perforating Panel Unit And Method

Abstract

A method and apparatus for controlling a perforating tool string using a perforating unit with a control board and shooting power supply.

What is claimed: 
     
         1 . A method for perforating a wellbore using an automated perforating unit, the method comprising:
 Deploying a perforating tool string into the wellbore to a first predetermined depth using a winch controlled by the perforating unit;   Inputting operational parameters into the perforating unit, including shot depth, depth correlation offset, and winch speed settings;   Automatically adjusting the winch speed based on real-time data received from downhole sensors, including tool tension, gamma ray data, and casing collar locator data;   Descending the tool string to a second predetermined depth, wherein the perforating unit continuously monitors and adjusts the winch speed and tool tension without user input;   Firing a first perforating gun at the predetermined shot depth, wherein the perforating unit sends a command to an automated power supply to deliver the required voltage to detonate the perforating gun at the correct depth;   Automatically deactivating the power supply after firing to prevent a short circuit in the wireline caused by wellbore fluids;   Repeating the steps of descending, adjusting winch speed, and firing at subsequent shot depths until all perforating guns have been detonated.   
     
     
         2 . The method of  claim 1 , wherein the downhole sensors used to adjust winch speed and verify successful perforation include at least one of the following, a gamma ray detector for depth correlation, a casing collar locator, and a tool tension sensor for real-time monitoring of tool string movement. 
     
     
         3 . The method of  claim 1 , wherein the power supply automatically disconnects from the wireline within a predefined time period after the perforating gun is fired, to ensure the protection of downhole electronics from wellbore fluids. 
     
     
         4 . The method of  claim 1 , further comprising automatically adjusting the firing sequence based on real-time feedback from downhole sensors indicating environmental factors such as wellbore deviation or unexpected fluid presence. 
     
     
         5 . The method of  claim 1 , wherein the perforating unit is configured to optimize winch speed based on the measured wellbore deviation, adjusting for vertical and horizontal well sections to maintain optimal tool tension. 
     
     
         6 . The method of  claim 1 , further comprising storing data from each perforation shot, including depth, tool tension, and firing success, and automatically generating a report at the end of the perforation sequence for review. 
     
     
         7 . The method of  claim 1 , wherein the perforating unit is configured to detect and prevent misfires, and in the event of a misfire, the unit automatically retries the perforation sequence at the same depth with adjusted voltage levels from the power supply. 
     
     
         8 . The method of  claim 1 , wherein the perforating unit controls both the winch speed and the flow rate of wellbore fluids, synchronizing these operations to maintain optimal tool string performance in horizontal well sections. 
     
     
         9 . The method of  claim 1 , wherein the perforating unit uses machine learning algorithms to predict and optimize tool string performance, based on historical data collected from prior perforation operations in similar wellbore conditions. 
     
     
         10 . The method of  claim 1 , further comprising automatically initiating tool retrieval at the end of the perforation sequence, with the winch speed adjusted to minimize tool wear and reduce the risk of wellbore obstructions. 
     
     
         11 . A method for automated perforation of a wellbore using a perforating unit, the method comprising:
 Deploying a perforating tool string into the wellbore to a predetermined depth;   Automatically controlling the descent of the tool string using a winch controlled by the perforating unit, wherein the winch speed is adjusted in real time based on data from downhole sensors;   Firing a perforating gun at the predetermined depth, wherein the perforating unit sends a command to a power supply to detonate the perforating gun;   Automatically deactivating the power supply immediately after the perforating gun is fired to prevent electrical short circuits in the wireline;   Receiving feedback from downhole sensors after the perforation event, wherein the perforating unit verifies successful detonation based on the feedback data and adjusts the firing sequence accordingly;   Repeating the steps of adjusting winch speed, firing the perforating gun, and receiving feedback for each subsequent perforation shot until the perforation sequence is complete.   
     
     
         12 . The method of  claim 11 , further comprising automatically acquiring and processing data from a plurality of downhole sensors, including tool tension sensors, depth correlation sensors, and orientation sensors, to control the perforating unit's operations without manual intervention. 
     
     
         13 . The method of  claim 11 , wherein the perforating unit dynamically adjusts winch speed and tool tension based on real-time data collected from the downhole tool string to maintain optimal conditions for perforating. 
     
     
         14 . The method of  claim 11 , further comprising automatically controlling the pump rate of a surface pumping unit used to flow fluids downhole, where the perforating unit coordinates the winch speed and pump rate to maintain optimal tool tension during the perforating process in horizontal wells. 
     
     
         15 . The method of  claim 11 , wherein the perforating unit operates in an automated mode, in which the firing of each perforating gun is initiated and controlled based on pre-programmed shot depth windows, and the power supply is automatically activated and deactivated for each gun without requiring user input. 
     
     
         16 . The method of  claim 11 , further comprising automatically determining the success of each shot, wherein the perforating unit receives feedback from downhole sensors after each detonation and adjusts the firing sequence if a misfire is detected. 
     
     
         17 . The method of  claim 11 , wherein the perforating unit controls both vertical and horizontal well completions, adjusting parameters such as line speed, surface tension, and tool pressure rating based on real-time conditions detected by downhole sensors. 
     
     
         18 . The method of  claim 11 , further comprising detecting and preventing short circuits after each shot by automatically disconnecting the power supply from the wireline once the perforating gun has been fired, preserving the integrity of the wireline and other downhole electronics. 
     
     
         19 . The method of  claim 11 , wherein the perforating unit autonomously calculates optimal shot distances and winch speed adjustments based on downhole conditions such as well deviation, and adjusts the operation dynamically to account for deviations in the wellbore. 
     
     
         20 . The method of  claim 11 , further comprising automating the retrieval of the tool string after perforation, wherein the perforating unit controls the winch to retrieve the tool string at the optimal speed, based on data collected from the downhole tool string and surface systems.