Abstract: A method of fracturing a wellbore formation that includes positioning an end of a coiled tubing string adjacent a first location within a wellbore, pumping fluid down the wellbore to fracture the formation, and monitoring a pressure within the wellbore during the procedure with at least one sensor connected to a communication line. The fracturing procedure may be a re-fracturing of the wellbore. The method may include actuating a single isolation element or two isolation elements to isolate a portion of the wellbore to be fractured. The method may include modifying the fracturing procedure in real time based on data from monitoring the pressure during the procedure. A system for fracturing a wellbore includes coiled tubing, a communication line within the coiled tubing, and at least one pressure sensor connected to the communication line. Pressure sensors may be connected to both the exterior and interior of the coiled tubing.

Abstract: A method of fracturing a wellbore formation that includes positioning an end of a coiled tubing string adjacent a first location within a wellbore, pumping fluid down the wellbore to fracture the formation, and monitoring a pressure within the wellbore during the procedure with at least one sensor connected to a communication line. The fracturing procedure may be a re-fracturing of the wellbore. The method may include actuating a single isolation element or two isolation elements to isolate a portion of the wellbore to be fractured. The method may include modifying the fracturing procedure in real time based on data from monitoring the pressure during the procedure. A system for fracturing a wellbore includes coiled tubing, a communication line within the coiled tubing, and at least one pressure sensor connected to the communication line. Pressure sensors may be connected to both the exterior and interior of the coiled tubing.

Abstract: In some embodiments, apparatus useful for providing tubing into an underwater well includes at least one surface injector and at least one underwater injector. The surface injector is adapted and arranged to control the movement of the tubing into and out of the underground well below the sea floor during normal operations. At least one surface injector and/or underwater injector is arranged and adapted to maintain the tubing in substantial tension between the surface and underwater injectors.

Abstract: In some embodiments, apparatus useful for providing tubing into an underwater well includes at least one surface injector and at least one underwater injector. The surface injector is adapted and arranged to control the movement of the tubing into and out of the underground well below the sea floor during normal operations. At least one surface injector and/or underwater injector is arranged and adapted to maintain the tubing in substantial tension between the surface and underwater injectors.

Abstract: In some embodiments, apparatus useful for providing tubing into an underwater well includes at least one surface injector configured to control movement of the tubing into and out of the well and at least one underwater injector configured to apply pushing and pulling forces to the tubing.

Abstract: In some embodiments, apparatus useful for providing tubing into an underwater well includes at least one surface injector configured to control movement of the tubing into and out of the well and at least one underwater injector configured to apply pushing and pulling forces to the tubing.

Abstract: A method for cleaning a plugged gravel pack in a subterranean wellbore is provided. The method comprises the steps of using a pressure pulsating jet and a tangential vortex to deliver a pressure pulsating treatment fluid into the gravel pack wherein soluble plugging materials in the gravel pack are dissolved by the treatment fluid and insoluble plugging materials are moved through the gravel pack and circulated out of the wellbore. The treatment fluid is driven into the gravel pack to dissolve soluble fines and displace insoluble fines from the interstitial pore spaces of the gravel pack.

Abstract: A method for cleaning a plugged gravel pack in a subterranean wellbore is provided. The method comprises the steps of using a pressure pulsating jet and a tangential vortex to deliver a pressure pulsating treatment fluid into the gravel pack wherein soluble plugging materials in the gravel pack are dissolved by the treatment fluid and insoluble plugging materials are moved through the gravel pack and circulated out of the wellbore. The treatment fluid is driven more completely into the gravel pack to obtain a greater coverage in the pack to dissolve soluble fines and displace insoluble fines from the interstitial pore spaces of the gravel pack.