Abstract: A method of characterizing a subterranean formation using a plurality of seismic acquisitions includes obtaining a first seismic acquisition of the subterranean formation, wherein the first seismic acquisition is a baseline survey. Injecting a gas fluid into the subterranean formation, wherein the gas fluid at least partially fills a portion of a fracture network of the subterranean formation. Obtaining a second seismic acquisition of the subterranean formation. Calculating a time-lapse difference in the plurality of seismic acquisitions.

Abstract: A compound archery bow with a handle-providing rigid riser and flexible limbs on the riser mounting bow string pulleys has damping interconnection mechanism between the limbs and riser. A damper is carried by each riser inboard of a riser limb seat. A resilient limb cup for each limb seat has portions for engaging the bottom, side walls and inner end wall of a limb and a fastener extends from each limb through each limb cup and limb seat to secure the limb to the damper. Pulley members with bow string tracks are journaled on the outer ends of the flexible limbs. The pulley members relate about lateral axes of revolution. A vertically extending bow string is trained around the revolvable pulley members. The bow string tracks lie in the same front to rear vertical plane. At least of the pulley members comprises an eccentric cam.

Abstract: A compound archery bow with a handle-providing rigid riser and flexible limbs on the riser mounting bow string pulleys has damping interconnection mechanism between the limbs and riser. A damper is carried by each riser inboard of a riser limb seat. A resilient limb cup for each limb seat has portions for engaging the bottom, side walls and inner end wall of a limb and a fastener extends from each limb through each limb cup and limb seat to secure the limb to the damper.

Abstract: A compound archery bow with a handle-providing rigid riser and flexible limbs on the riser mounting bow string pulleys has damping interconnection mechanism between the limbs and riser. A damper is carried by each riser inboard of a riser limb seat. A resilient limb cup for each limb seat has portions for engaging the bottom, side walls and inner end wall of a limb and a fastener extends from each limb through each limb cup and limb seat to secure the limb to the damper.

Abstract: An eccentric pulley assembly is provided for a compound bow, including an eccentric base cam having a peripheral track for letting out a draw string as the bow is drawn. A power cam secured to the base cam has a cable track for taking up a power cable as the bow is drawn and a shoulder is provided for spacing the track of the base cam from the track of the power cam.