Method And Apparatus For String Access Or Passage Through The Deformed And Dissimilar Contiguous Walls Of A Wellbore
First Claim
1. A method (1, 1A-1AE) of using a tool string and a downhole device with a circumferential adaptable apparatus to urge access or passage through an obstructive dissimilar contiguous passageway (9) of a subterranean well bore (10), said method comprising the steps of:
- using the tool string (8A-8AE) comprising a deployment string (8) with a lower end coiled string compatible connector (17) engaged to an upper end shaft segment of a plurality of movable shaft segments (6, 6A-6AE) interoperable with at least one circumferential adaptable apparatus (2, 2A-2AE) and at least one downhole device (3, 3A-3AE, 11, 12, 19, 20, 24, 27, 28) deployed or removed through an upper end of the subterranean well bore and into or out of a lower end of said well bore to urge access or passage through the obstructive dissimilar contiguous passageway;
selectively arranging said tool string to use said at least one circumferential adaptable apparatus by engaging an axial pivotal member (7, 7A-7AE) and an associated flexible hinge to said at least one circumferential adaptable apparatus and said at least one downhole device or a lower end shaft segment of said plurality of movable shaft segments carrying said at least one circumferential adaptable apparatus or said at least one downhole device to said obstructive dissimilar contiguous passageway, wherein said obstructive dissimilar contiguous passageway comprises a first (4, 4A-4AE) and at least a second (5, 5A-5AE) wall portion comprising an obstruction formed by at least one of;
an obstructive partially restricted circular or deformed circumference, frictionally obstructive walls, or frictionally obstructive debris (18) therein; and
using said engagement of said at least one circumferential adaptable apparatus and said at least one downhole device, between said first or said at least a second wall portion, to adapt a circumference of said at least one circumferential adaptable apparatus to operate said flexible hinge and to selectively orient said at least one circumferential adaptable apparatus and said at least one downhole device to pilot said tool string by;
axially or radial outwardly deforming said obstruction to provide access to, or traversing said obstruction to provide passage through, said obstructive dissimilar contiguous passageway.
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Accused Products
Abstract
Method and apparatus for providing access to a lower end wellbore through an impasse using an circumferential adaptable apparatus and downhole devices to pilot a tool string through an existing obstructive frictional or restricted passageway with dissimilar well bore walls, wherein piloting a tool string may comprise displacing debris within and/or deforming its proximally circular and/or deformed bores or traversing an obstructive passageway therebetween, and whereby various downhole devices may be incorporated, deployed and oriented relative to a proximal axis or proximally contiguous wall, using the expandable and collapsible members of the present invention engaged about a plurality of shafts, usable to pilot the tool string through a conventional impasse or restriction of said walls of said dissimilar contiguous passageways.
34 Citations
50 Claims
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1. A method (1, 1A-1AE) of using a tool string and a downhole device with a circumferential adaptable apparatus to urge access or passage through an obstructive dissimilar contiguous passageway (9) of a subterranean well bore (10), said method comprising the steps of:
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using the tool string (8A-8AE) comprising a deployment string (8) with a lower end coiled string compatible connector (17) engaged to an upper end shaft segment of a plurality of movable shaft segments (6, 6A-6AE) interoperable with at least one circumferential adaptable apparatus (2, 2A-2AE) and at least one downhole device (3, 3A-3AE, 11, 12, 19, 20, 24, 27, 28) deployed or removed through an upper end of the subterranean well bore and into or out of a lower end of said well bore to urge access or passage through the obstructive dissimilar contiguous passageway; selectively arranging said tool string to use said at least one circumferential adaptable apparatus by engaging an axial pivotal member (7, 7A-7AE) and an associated flexible hinge to said at least one circumferential adaptable apparatus and said at least one downhole device or a lower end shaft segment of said plurality of movable shaft segments carrying said at least one circumferential adaptable apparatus or said at least one downhole device to said obstructive dissimilar contiguous passageway, wherein said obstructive dissimilar contiguous passageway comprises a first (4, 4A-4AE) and at least a second (5, 5A-5AE) wall portion comprising an obstruction formed by at least one of;
an obstructive partially restricted circular or deformed circumference, frictionally obstructive walls, or frictionally obstructive debris (18) therein; andusing said engagement of said at least one circumferential adaptable apparatus and said at least one downhole device, between said first or said at least a second wall portion, to adapt a circumference of said at least one circumferential adaptable apparatus to operate said flexible hinge and to selectively orient said at least one circumferential adaptable apparatus and said at least one downhole device to pilot said tool string by;
axially or radial outwardly deforming said obstruction to provide access to, or traversing said obstruction to provide passage through, said obstructive dissimilar contiguous passageway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A circumferential adaptable apparatus (2, 2A-2AE) used (1, 1A-1AE) to urge access or passage through an obstructive dissimilar contiguous passageway (9) of a subterranean well bore (10), said circumferential adaptable apparatus comprising:
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at least one circumferential adaptable apparatus (2) with an axial pivotal member (7, 7A-7AE) and an associated flexible hinge usable with at least one downhole device (3, 3A-3AE, 11, 12, 19, 20, 24, 27, 28) to engage said at least one circumferential adaptable apparatus and said at least one downhole device or a lower end shaft segment of a plurality of movable shaft segments (6, 6A-6AE) carrying said at least one circumferential adaptable apparatus or said at least one downhole device, wherein said at least one circumferential adaptable apparatus and said at least one downhole device are selectively arranged within and carried by a tool string (8A-8AE) comprising a deployment string (8) with a lower end coiled string compatible connector (17) engaged to an upper end shaft segment of said plurality of movable shaft segments, wherein said at least one circumferential adaptable apparatus (2) and said at least one downhole device and said tool string are interoperable and deployed or removed through an upper end of said subterranean well bore and into or out of a lower end of said subterranean well bore to urge access or passage through said obstructive dissimilar contiguous passageway comprising substantially differing effective circumferences, with a first (4, 4A-4AE) and at least a second (5, 5A-5AE) wall portion, comprising an obstruction formed by at least one of;
an obstructive partially restricted circular or deformed circumference, frictionally obstructive walls, or frictionally obstructive debris (18) therein, andwherein the engagement of said at least one circumferential adaptable apparatus and said at least one downhole device between said first or said at least a second wall portion adapts a circumference of said at least one circumferential adaptable apparatus to operate said flexible hinge and to selectively orient said at least one circumferential adaptable apparatus and said at least one downhole device to pilot said tool string by;
axially or radial outwardly deforming said obstruction to provide said access to, or by traversing said obstruction to provide said passage through, said obstructive dissimilar contiguous passageway. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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Specification