Identifying landing of downhole equipment at a wellhead

A wellhead landing detection system, comprising:

• one or more acoustic sensors configured to be secured to an outer surface of a wellhead opposite or adjacent to a landing location at an inner surface of the wellhead;
• and
• a processor and memory, the memory including instructions that cause the processor to:
• emit an acoustic pulse from the one or more acoustic sensors;
• receive a reflection of the acoustic pulse as an acoustic signal;
• process the acoustic signal resulting in a processed acoustic signal, wherein processing the acoustic signal includes:
• normalizing the acoustic signal;
• smoothing the acoustic signal;
• and
• differentiating a background signal from the acoustic signal;
• select a portion of the processed acoustic signal based on a thickness of the wellhead;
• identify a reflection characterization from the portion;
• and
• based on the reflection characterization, identify a landing configuration of equipment with the wellhead.

A method for identifying a landing configuration, the method comprising:

• emitting an acoustic pulse from an acoustic sensor located on an outer surface of a wellhead;
• receiving a reflection of the acoustic pulse as an acoustic signal;
• normalizing the acoustic signal;
• smoothing the acoustic signal;
• differentiating a background signal from the acoustic signal;
• selecting a portion of the acoustic signal based on a thickness of the wellhead;
• identifying a reflection characterization from the portion;
• and
• based on the reflection characterization, identifying a landing configuration of equipment with the wellhead.