Methods and apparatus to form a well

A method to form a well, comprising:

• measuring a formation fluid;
• determining fluid composition data based on the measurement;
• determining, based on the fluid composition data, a fluid map associated with at least a portion of a reservoir;
• comparing a target fluid property with a second fluid property associated with the fluid map;
• and
• adjusting a well trajectory based on the comparison.

A drilling system comprising:

• a processor;
• and
• a machine accessible medium coupled to the processor and having instructions stored thereon that, when executed, cause the drilling system to:
• determine a fluid map associated with at least a portion of a reservoir;
• measure a formation fluid;
• determine fluid composition data based on the measurement;
• receive a well trajectory selection associated with a comparison of the fluid composition data with the fluid map;
• and
• adjust a well trajectory based on the well trajectory selection.

A drilling system comprising:

• a processor;
• and
• a machine accessible medium coupled to the processor and having instructions stored thereon that, when executed, cause the drilling system to:
• measure a formation fluid;
• determine fluid composition data based on the measurement;
• determine, based on the fluid composition data, a fluid map associated with at least a portion of a reservoir;
• receive a well trajectory selection associated with a comparison of a target fluid property with a second fluid property associated with the fluid map;
• and
• adjust a well trajectory based on the well trajectory selection.