Degradable material time delay system and method

A time delay firing method, said method operating in conjunction with a downhole wellbore time delay tool;

• said downhole wellbore time delay tool integrated into an energetic device used in TCP operation;
• wherein said method comprises the steps of:
• (1) positioning said wellbore tool at desired wellbore location;
• (2) increasing pressure to actuate an actuating device;
• (3) initiating a chemical reaction between a mechanical restraining element and a reactive fluid in said wellbore time delay tool;
• (4) progressing said chemical reaction for a pre-determined time delay and changing a physical property of said mechanical restraining element;
• (5) bleeding pressure until optimal conditions for perforation is reached;
• and
• (6) firing said wellbore device when said change in said physical property in said mechanical restraining element releases a firing pin in said energetic device,

A predictable downhole time delay tool for determining time delay in a wellbore;

• said downhole time delay tool comprising a known liquid and a known mechanical restraining element;
• said reactive liquid contained in a reservoir;
• said reservoir deployed along with said delay tool;
• wherein said known liquid is configured to react with said mechanical restraining element after positioning said tool at a desired location in said wellbore;
• and said time delay determined based upon a condition encountered in said wellbore when said known liquid reacts with said mechanical restraining element.

A predictable time delay method, said method operating in conjunction with a predictable downhole time delay tool comprising a known liquid and a known mechanical restraining element;

• said reactive liquid contained in a reservoir;
• said reservoir deployed along with said delay tool;
• said known liquid is configured to react with said mechanical restraining element after positioning and actuating said tool at a desired location in said wellbore;
• wherein said method comprises the steps of:
• (1) positioning said predictable downhole time delay tool at a desired wellbore location;
• (2) determining a wellbore condition at said wellbore location;
• and
• (3) after positioning said wellbore tool in said wellbore casing in step (1), actuating and calculating a time delay based on said wellbore condition.