Abstract: Disclosed herein are methods for treating hydrocarbon-bearing formations previously subjected to hydraulic fracturing, in which at least some of the methods include pumping into a wellbore a treatment composition comprising LPG combined with one or more surfactants each of which is fully or partially dissolved into the LPG, causing the treatment composition to make contact with water residing in the formation such that at least a portion of the one or more surfactants dissolves into the water, and recovering a composition that includes residual hydrocarbons and at least some of the LPG and water that resided in the formation and at least some of the one or more surfactants that were pumped into the wellbore.

Abstract: Disclosed herein are methods for treating hydrocarbon-bearing formations previously subjected to hydraulic fracturing. In at least certain embodiments, a purpose of the treatment is to mobilize incremental oil from the formation by increasing effective Stimulated Rock Volume (eSRV) using diverters and a treatment composition that includes LPG as carrier fluid. At least some of the methods include pumping into the wellbore a treatment composition comprising LPG combined with one or more surfactants each of which is fully or partially dissolved into the LPG, causing the treatment composition to make contact with water residing in the formation such that at least a portion of the one or more surfactants dissolves into the water, and recovering a composition that includes residual hydrocarbons and at least some of the LPG and water that resided in the formation and at least some of the one or more surfactants that were pumped into the wellbore.

Abstract: A suture device with a composite end effector, the composite end effector including a suture with an unmodified fixation element at a distal end and an overlying attachment piece disposed over the proximal end of the unmodified fixation element. The resulting composite end effector has improved strength and avoids the need for affixation methods such as welding or chemical affixation.

Abstract: A suture device with a composite end effector, the composite end effector including a suture with an unmodified fixation element at a distal end and an overlying attachment piece disposed over the proximal end of the unmodified fixation element. The resulting composite end effector has improved strength and avoids the need for affixation methods such as welding or chemical affixation.