Abstract: Tracking fluid displacement along a wellbore using real time temperature measurements. A method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature in real time in the wellbore; and observing in real time a variation in temperature gradient between fluid compositions in the wellbore. Another method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature along the wellbore; and observing a variation in temperature gradient due to a chemical reaction in the wellbore. Another method includes the step of causing a variation in temperature gradient in the fluid while the fluid flows in the wellbore.

Abstract: Tracking fluid displacement along a wellbore using real time temperature measurements. A method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature in real time in the wellbore; and observing in real time a variation in temperature gradient between fluid compositions in the wellbore. Another method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature along the wellbore; and observing a variation in temperature gradient due to a chemical reaction in the wellbore. Another method includes the step of causing a variation in temperature gradient in the fluid while the fluid flows in the wellbore.

Abstract: Tracking fluid displacement along a wellbore using real time temperature measurements. A method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature in real time in the wellbore; and observing in real time a variation in temperature gradient between fluid compositions in the wellbore. Another method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature along the wellbore; and observing a variation in temperature gradient due to a chemical reaction in the wellbore. Another method includes the step of causing a variation in temperature gradient in the fluid while the fluid flows in the wellbore.

Abstract: Tracking fluid displacement along a wellbore using real time temperature measurements. A method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature in real time in the wellbore; and observing in real time a variation in temperature gradient between fluid compositions in the wellbore. Another method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature along the wellbore; and observing a variation in temperature gradient due to a chemical reaction in the wellbore. Another method includes the step of causing a variation in temperature gradient in the fluid while the fluid flows in the wellbore.

Abstract: Tracking fluid displacement along a wellbore using real time temperature measurements. A method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature in real time in the wellbore; and observing in real time a variation in temperature gradient between fluid compositions in the wellbore. Another method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature along the wellbore; and observing a variation in temperature gradient due to a chemical reaction in the wellbore. Another method includes the step of causing a variation in temperature gradient in the fluid while the fluid flows in the wellbore.

Abstract: Tracking fluid displacement along a wellbore using real time temperature measurements. A method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature in real time in the wellbore; and observing in real time a variation in temperature gradient between fluid compositions in the wellbore. Another method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature along the wellbore; and observing a variation in temperature gradient due to a chemical reaction in the wellbore. Another method includes the step of causing a variation in temperature gradient in the fluid while the fluid flows in the wellbore.

Abstract: An improved fixed ballast for a floating offshore structure. The material used for the ballast may be a dense liquid that is pumped into the fixed ballast tank during ballasting and forced out of the tank during deballasting. The material may also be a soluble material that is ground up into particles and added to water. After a saturated solution is obtained, more particles are added to produce a slurry. The slurry is delivered into the ballast tanks. Removal of the slurry is accomplished by pumping sea water into the ballast tanks until all of the ballast material is dissolved and forced out of the tank.

Abstract: A practice device for use with a gun includes a laser-producing mechanism for producing a laser beam simulating a fired-bullet pathway. The device includes a bore insert with a striker member which the firing pin of the gun impacts and moves during a firing movement thereof. The movement of the striker member moves an electrical switch mounted on the bore insert to form a closed electrical circuit to activate the laser-producing mechanism. The electrical switch automatically returns to an open-circuit position to turn the laser beam off. A support which preferably includes resilient plastic bristles extends radially outwardly from the bore insert to prevent damage to the gun bore inner surface and to allow for use with guns having different bore sizes. The laser-producing mechanism is pivotally mounted on the bore insert to provide alignment thereof.

Abstract: A lawn mower is provided having a chassis, a mower deck dependent from the chassis, having a chute for discharging clippings generally in a first direction onto the ground; and a blower assembly mounted to the chassis on the same side as the chute, and having an outlet oriented such that a stream of air from the blower extends along a second direction and intersects the clippings discharged from the chute in the first direction and redisperses the clippings over an area greater than that achieved by the mower deck alone.