Patent ID: 7802627

Claim:
A selectively-actuatable fracing valve comprising: a generally-cylindrical casing having at least one casing hole; a generally-cylindrical inner sleeve nested within said casing and having at least one sleeve hole alignable with said at least one casing hole; actuator means for moving said inner sleeve relative to said casing and selectively aligning said at least one sleeve hole with said at least one casing hole; and receiver means electrically connected to said actuator means for detecting mechanical energy generated by a seismic source and converting said mechanical energy into an electrical signal; said inner sleeve has at least one seating bore disposed therein; and said actuator means comprises: a compression spring urging said inner sleeve linearly within said casing; and a solenoid-and-cam assembly affixed to said casing and having a cam follower pin insertable into said at least one seating bore.