摘要:
The invention relates to methods and apparatus for creating multiple fractures in subterranean formations. The apparatus is a jetting tool having a plurality of sets of jetting nozzles so that the sets of nozzles are substantially parallel to one another such that parallel cavities may be formed substantially simultaneously in the formation. The jetting nozzles may be adapted to provide a fluid jet that flares outwardly from the nozzle. The nozzles also may be aligned such that cavities in the formation overlap to form a single cavity. The nozzles may be further adapted so that holes jetted into the casing thereby are still spaced from one another. Methods of fracturing subterranean formations using the apparatus are also disclosed.
摘要:
A fluid inflatable packer includes a mandrel having an elongated tubular body with a number of openings along its length or other open architecture. An inflatable element is disposed about the elongated tubular body of the mandrel or the interior of the fluid inflatable packer. The inflatable element is exposed to an interior of the mandrel through the openings or otherwise. The inflatable element expands and contracts with pressure of process fluids in the interior of the mandrel or the fluid inflatable packer. The process fluids may be unfiltered and include five or more pounds of sand or other solids per gallon.
摘要:
The present invention relates to subterranean well stimulation. More particularly, the present invention relates to improved methods of stimulating subterranean formations during drilling operations. In some embodiments, the present invention discloses methods of stimulating a section of a subterranean formation comprising (a) forming at least a portion of a well bore that at least penetrates a section of the subterranean formation using a drilling operation; (b) stimulation a section of the subterranean; and (c) continuing the drilling operation. In other embodiments, the present invention discloses methods of stimulation a section of a subterranean formation comprising (a) forming at least a portion of a well bore that at least penetrates a section of the subterranean formation using a drilling operation; (b) stimulating a section of the subterranean formation; and (c) continuing the drilling operation.
摘要:
A well bore servicing apparatus comprising a housing having a longitudinal axis and a through bore, and a movable member disposed in said housing, said movable member having a through bore and a fluid aperture therein, wherein said movable member is movable between a first stop position and a second stop position relative to said housing and along said axis, wherein said fluid aperture is in fluid communication with said housing through bore and said movable member through bore to provide a fluid stream to the well bore in said first and second axially spaced stop positions. A well bore servicing apparatus comprising a work string, a housing coupled to said work string, and a member slidably coupled to said housing, said slidable member having a fluid jetting nozzle and a fluid path therethrough communicating fluid to said fluid jetting nozzle, wherein said slidable member is operable to place said fluid jetting nozzle in a plurality of axially spaced stop positions relative to said housing and said work string.
摘要:
A bottomhole assembly (BHA) and method for stimulating a well includes setting a packer of the BHA in a wellbore. The BHA includes the packer and a jetting tool coupled to a tubing string. Process fluid is pumped down the tubing string and jetted with the jetting tool to perforate a formation. Stimulation process fluid is pumped down an annulus of the wellbore to fracture the formation.
摘要:
Methods of initiating a fracture tip screenout, that comprise pumping an annulus fluid into an annulus, between the subterranean formation and a work string disposed within a wellbore penetrating the subterranean formation, at an annulus flow rate; and reducing the annulus flow rate below a fracture initiation flow point so that the fracture tip screenout is initiated in the one or more fractures in the subterranean formation, are provided. Also provided are methods of fracturing a portion of a subterranean formation and methods of estimating a fracture initiation flow point.
摘要:
According to one embodiment of the invention, a flow conditioning system for fluid jetting tools includes a housing having a plurality of jet nozzle openings and a fluid straightener disposed within the housing. The fluid straightener is defined by one or more vanes, and the vanes form a plurality of flow channels within the housing. Each flow channel is associated with at least one jet nozzle opening.
摘要:
A well bore servicing apparatus comprising a housing having a longitudinal axis and a through bore, and a movable member disposed in said housing, said movable member having a through bore and a fluid aperture therein, wherein said movable member is movable between a first stop position and a second stop position relative to said housing and along said axis, wherein said fluid aperture is in fluid communication with said housing through bore and said movable member through bore to provide a fluid stream to the well bore in said first and second axially spaced stop positions. A well bore servicing apparatus comprising a work string, a housing coupled to said work string, and a member slidably coupled to said housing, said slidable member having a fluid jetting nozzle and a fluid path therethrough communicating fluid to said fluid jetting nozzle, wherein said slidable member is operable to place said fluid jetting nozzle in a plurality of axially spaced stop positions relative to said housing and said work string.
摘要:
A method and apparatus for use in hydrocarbon exploration. The method and apparatus improve downhole flow back control in oil and/or gas wells by controlling fluid entry into the well bore. Either a single limited entry opening or a small cluster of limited entry openings is provided in a well liner or casing and cement sheath allowing fluid communication between a region of a well bore and a subterranean reservoir. The method also uses the limited entry opening or the cluster during an injection treatment of the subterranean reservoir to control fluid entry. The method also provides a proppant flow back treatment following the injection treatment of the subterranean reservoir.
摘要:
A system and method for fracturing a hydrocarbon producing formation in which a fracturing tool is inserted in a wellbore adjacent the formation, and fracturing fluid is introduced into the annulus between the fracturing tool and the wellbore and flows to the formation.