Offset well analysis using well trajectory similarity

A computing system, comprising:

• one or more processors;
• and
• a memory system comprising one or more non-transitory computer-readable media storing instructions that, when executed by at least one of the one or more processors, cause the computing system to perform operations, the operations comprising:
• receiving offset well data collected from a plurality of existing offset wells, wherein the offset well data comprises experiential data regarding past events on the plurality of existing offset wells, and wherein the offset well data comprises data representing a trajectory of each existing offset well of the plurality of existing offset wells;
• receiving subject well data comprising a trajectory of at least a portion of a potential subject well;
• partitioning the trajectory of each existing offset well of the plurality of existing offset wells into a plurality of offset well segments;
• partitioning the trajectory of the potential subject well into a plurality of subject well segments;
• determining a distance between at least some of the plurality of offset well segments of each existing offset well of the plurality of existing offset wells and at least some of the plurality of subject well segments, wherein a starting surface location of each existing offset well of the plurality of existing offset wells and a starting surface location of the potential subject well are considered to be the same, wherein determining the distance comprises determining a plurality of distances between corresponding segments of the plurality of offset well segments and the plurality of subject well segments, wherein determining the distance comprises combining the plurality of distances, and wherein the distance comprises one of:
• a total of the plurality of distances, an average of the plurality of distances, or a weighted average of the plurality of distances;
• selecting an existing offset well from among the plurality of existing offset wells based in part on the distance;
• performing an offset well analysis using the existing offset well and the potential subject well;
• and
• adjusting the trajectory of the potential subject well, or one or more drilling parameters for the potential subject well, or both based at least in part on the offset well analysis.

A non-transitory computer-readable medium storing instructions that, when executed by one or more processors of a computing system, cause the computing system to perform operations, the operations comprising:

• receiving offset well data collected from a plurality of existing offset wells, wherein the offset well data comprises experiential data regarding past events on the plurality of existing offset wells, and wherein the offset well data comprises data representing a trajectory of each existing offset well of the plurality of existing offset wells;
• receiving subject well data comprising a trajectory of at least a portion of a potential subject well;
• partitioning the trajectory of each existing offset well of the plurality of existing offset wells into a plurality of offset well segments;
• partitioning the trajectory of the potential subject well into a plurality of subject well segments;
• determining a distance between at least some of the plurality of offset well segments of each existing offset well of the plurality of existing offset wells and at least some of the plurality of subject well segments, wherein determining the distance comprises determining the distance between corresponding segments of the plurality of offset well segments and the plurality of subject well segments, and wherein a surface location of a top of each existing offset well of the plurality of existing offset wells and a location of a top of the potential subject well are considered to be the same for purposes of determining the distance, the distance representing a similarity of the trajectory of the at least some of the plurality of offset well segments of each existing offset well of the plurality of existing offset wells and the trajectory of the at least some of the plurality of subject well segments of the potential subject well, wherein determining the distance comprises determining a plurality of distances between corresponding segments of the plurality of offset well segments and the plurality of subject well segments, wherein determining the distance comprises combining the plurality of distances, and wherein the distance comprises one of:
• a total of the plurality of distances, an average of the plurality of distances, or a weighted average of the plurality of distances;
• selecting an existing offset well from among the plurality of existing offset wells based in part on the distance;
• performing an offset well analysis using the existing offset well and the potential subject well;
• and
• adjusting the trajectory of the potential subject well, or one or more drilling parameters for the potential subject well, or both based at least in part on the offset well analysis.