Apparatus and method for coring and/or drilling
AssigneeCorpro Systems Limited
InventorTerence Alexander Moore
Life of this patent
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Abstract
An apparatus and method for creating a hole in a subsurface formation is disclosed. The apparatus includes an inner assembly, which may include a coring barrel, a piston cylinder and a piston rod member, is connected to an elongate member such as a wireline. The inner assembly may include a member such as a packer capable of engaging one of an outer assembly and the borehole. Furthermore, the coring barrel may have a cutting member for creating the hole in the subsurface formation.
Claims18
Apparatus for creating a hole in a subsurface formation, the apparatus comprising:
- an inner assembly adapted for connection to an elongate member wherein the inner assembly is adapted to be raised and lowered within a borehole;
- the inner assembly including a member capable of engaging one of an outer assembly and the borehole;
- wherein the inner assembly also comprises a coring barrel.
A method for creating a hole in a subsurface formation, comprising the steps of:
- providing an apparatus including an inner assembly adapted for connection to an elongate member wherein the inner assembly is adapted to be raised and lowered within a borehole;
- the inner assembly including a member capable of engaging one of an outer assembly and the borehole and a cutting member for creating the hole in said subsurface formation;
- wherein the cutting member is operated to drill a hole in a casing of a borehole, prior to drilling a hole in a subterranean formation.
Apparatus for creating a hole in a subsurface formation, the apparatus comprising:
- an inner assembly adapted for connection to an elongate member wherein the inner assembly is adapted to be raised and lowered within a borehole;
- the inner assembly including a member capable of engaging one of an outer assembly and the borehole;
- wherein a rotation resistance mechanism is further provided to prevent rotation of at least a portion of the inner assembly with respect to at least one of the outer assembly and the borehole.
Apparatus for creating a hole in a subsurface formation, the apparatus comprising:
- an inner assembly adapted for connection to an elongate member wherein the inner assembly is adapted to be raised and lowered within a borehole;
- the inner assembly including a member capable of engaging one of an outer assembly and the borehole;
- wherein the inner assembly further comprises a piston cylinder and a piston rod member, wherein the piston rod member extends through the piston cylinder, and further extends through a rotation resistance mechanism.
A method for creating a hole in a subsurface formation, the method comprising the steps of:
- lowering an inner assembly into a borehole;
- engaging the inner assembly with either of an outer assembly or the borehole to resist substantially vertical movement of at least a portion of the inner assembly with respect to at least one of the outer assembly or the borehole;
- and,
- driving a cuffing member into said subsurface formation to create a hole;
- wherein the said subsurface formation is recovered into a core barrel.
A method for recovering a sample from a subsurface formation, the method comprising the steps of:
- lowering an inner assembly comprising an expandable member into a borehole;
- engaging the expandable member with either of an outer assembly or the borehole to resist substantially vertical movement of at least a portion of the inner assembly with respect to at least one of the outer assembly or the borehole;
- and,
- driving a cutting member into said subsurface formation to create a hole;
- recovering a portion of the subsurface formation into a core barrel;
- disengaging the expandable member from said engagement;
- moving the inner assembly with respect to at least one of the outer assembly or borehole;
- engaging the expandable member with either of the outer assembly or the borehole to resist substantially vertical movement of at least a portion of the inner assembly with respect to at least one of the outer assembly or the borehole;
- driving the cutting member further into said subsurface formation;
- and
- recovering a further portion of the subsurface formation into the core barrel.
Dependencies are inferred from the claim text.