High rate stimulation method for deep, large bore completions

摘要

A method of servicing a wellbore comprising inserting a first tubing member into the wellbore, wherein a manipulatable fracturing tool is coupled to the first tubing member and comprises one or more ports configured to alter a flow of fluid through the manipulatable fracturing tool, positioning the manipulatable fracturing tool proximate to a formation zone, manipulating the manipulatable fracturing tool to establish fluid communication between the flowbore of the first tubing member and the wellbore, introducing a first component of a composite fluid into the wellbore via the flowbore of the first tubing member, introducing a second component of the composite fluid into the wellbore via an annular space formed by the first tubing member and the wellbore, mixing the first component with the second component within the wellbore, and causing a fracture to form or be extended within the formation zone.

主权项

1. A method of servicing a wellbore comprising;
inserting a first tubing member having a flowbore into the wellbore having disposed therein a casing string, wherein a manipulatable fracturing tool, or a component thereof, is coupled to the first tubing member and wherein the manipulatable fracturing tool comprises a first one or more ports and a second one or more ports configurable to alter a flow of fluid through the minipulable fracturing tool; positioning the manipulatable fracturing tool within the casing string within the wellbore proximate to a formation zone to be serviced; introducing an obturating member into the first tubing member; forward-circulating the obturating member to engage an obturating structure within the manipultable fracturing tool and thereby manipulate the manipulatable fracturing tool such that there is fluid communication between the flowbore of the first tubing member and the wellbore via the first one or more ports and such that there is not fluid communication between the flowbore of the first tubing member and the wellbore via the second one or more ports; emitting a first fluid from the first one or more ports; reverse circulating the obturating member to disengage the obturating member from the obturating structure and thereby further manipulate the manipulatable fracturing tool such that there is fluid communication between the flowbore of the first tubing member and the wellbore via the first one or more ports and the second one or more ports; introducing at least a portion of a first component of a composite fluid into the wellbore at a first rate via the flowbore of the first tubing member, the first one or more ports, and the second one or more ports; introducing a second component of the composite fluid into the wellbore at a second rate via an annular space formed by the first tubing member and the wellbore; mixing the first component of the composite fluid with the second component of the composite fluid within the welibort; and introducing the comrposite fluid into the fonnation zone.