Well orienting tool and method of use
First Claim
1. A well tool operable by a non rotatable, longitudinally movable well string extending into a well bore for rotating a down hole device, said well tool comprising:
- a rotator for connection with the non rotatable well string to move longitudinally in the well bore in response to longitudinal movement of the non rotatable well string;
a rotatable member for telescopically receiving said rotator;
cooperating means on said rotator and said rotatable member for imparting rotation to said rotatable member and the down hole device upon longitudinal movement of the non rotatable well string and said rotator to telescope said rotator into said rotatable member; and
a releasable lock to lock said rotator, said non rotatable well string and said rotatable member in a telescoped position to lock the device in a rotated position.
4 Assignments
0 Petitions
Accused Products
Abstract
A down hole well tool shown in the form of an orienting tool (OT) has mandrel (16) with helical grooves (16a) thereon and a tubular member (20) which telescopically receives the mandrel (16). Keys (22) on tubular member (22) engage in the grooves (16a). Mandrel (16) is connected with non rotatable coil tubing (T) and member (20) is connected to a bottom hole assembly (BHA) which may comprise a plurality of components or a single device to form a well tool. The orienting or rotating tool (OT) and down hole assembly (BHA) constitute an orienting assembly, for orienting or rotating a device such as a drill bit (13) to drill a deviated well bore, including a horizontal well bore, to a desired target area. Downhole instruments relay to the surface equipment (1) the azimuth, inclination and tool face of the directional drilling equipment.
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Citations
76 Claims
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1. A well tool operable by a non rotatable, longitudinally movable well string extending into a well bore for rotating a down hole device, said well tool comprising:
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a rotator for connection with the non rotatable well string to move longitudinally in the well bore in response to longitudinal movement of the non rotatable well string; a rotatable member for telescopically receiving said rotator; cooperating means on said rotator and said rotatable member for imparting rotation to said rotatable member and the down hole device upon longitudinal movement of the non rotatable well string and said rotator to telescope said rotator into said rotatable member; and a releasable lock to lock said rotator, said non rotatable well string and said rotatable member in a telescoped position to lock the device in a rotated position. - 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, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. Apparatus for guiding and drilling a well bore to a desired target area with a non rotatable, longitudinally movable drill string comprising:
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directional drilling equipment including a drilling member to guide the drilling member to drill the well bore; instruments associated with said directional drilling equipment to determine the azimuth, inclination and direction of the tool face of said directional drilling equipment; surface means to receive the instrument determinations of azimuth, inclination and tool face; relay means to conduct said instrument determinations to the earth'"'"'s surface; and an orienting well tool connected with the non rotatable, longitudinally movable drill string and with said directional drilling equipment, including the drilling member to orient said directional drilling equipment including the drilling member to a predetermined position upon longitudinal movement of the non rotatable, longitudinally movable drill string to position the drilling member to drill the well bore to the desired target area. - View Dependent Claims (45, 46, 47, 48, 49)
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50. In an orienting tool for connection between a well string and a device to orient the device by longitudinal movement of the well string to a predetermined position in a well bore, the invention comprising:
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a first member for connection with the well string; a second member for connection with the device and telescopically receiving said first member; a releasable lock to lock said first member and said second member together in the predetermined position; and
a spring between said first member and said second member to inhibit premature actuation of said lock means. - View Dependent Claims (51, 52, 53, 54, 55, 56)
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57. In a rotatable tool for connection between a coiled tubing well string and a device to be oriented in a well bore the invention including:
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first and second members telescopically engageable, with one of said members engageable with the coiled tubing well string and the other member engageable with the device to be oriented in the well bore; cooperating means on said first and second members to effect rotation of said member connected with the device to be oriented upon longitudinal movement of the coiled tubing well string and the member connected therewith to position the device in a predetermined rotated position; and lock means to lock said first and second members together in the predetermined rotated position. - View Dependent Claims (58, 59, 60, 61)
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62. A releasable lock for a down hole well tool for rotating a device in a well bore, which tool has a first non rotatable member for connection with a non-rotatable well string and a second rotatable member for connection with the device to be rotated including:
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a piston; seal means for sealably engaging said piston between the first and second members; and slip means associated with said piston means movable in response to movement of said piston means to secure the first and second members together.
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63. A method of assembling apparatus for drilling a well bore with a non rotatable longitudinally movable, drill string wherein the apparatus includes down hole directional drilling equipment including a drilling member forming a bottom hole assembly, instruments for determining the azimuth, inclination and direction of the tool face of the bottom hole assembly, surface equipment for receiving the instrument determinations, relay means for relaying the instrument determinations to the surface equipment and a down hole well tool having a non rotatable member telescopically engageable with a rotatable member, the well tool operable by moving the nonrotatable longitudinally movable drill string to rotate the down hole directional drilling equipment including a drilling member and to lock the non rotatable member and the rotatable member together to guide drilling the well bore to a target area comprising the steps of:
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connecting the rotatable member of the well tool with the down hole directional drilling equipment including a drilling member; and connecting the non rotatable member of the well tool with the non-rotatable longitudinally movable drill string.
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64. A method of orienting a bottom hole assembly in a well bore with a non-rotatable drill string to drill a well bore to a desired target area wherein the bottom hole assembly includes directional drilling equipment including a fluid actuated motor and a drilling member operable thereby to drill the well bore to drill a well bore to a desired target area instruments for determining the azimuth, inclination and direction of the tool face of the bottom hole assembly, surface equipment for receiving the instrument determinations, relay means for relaying the instrument determinations to the surface equipment, a down hole orienting well tool having first and second members telescopically engageable, with one of said members engageable with the non rotatable, longitudinally movable well string and the other member engageable with the bottom hole assembly to be oriented in the well bore and cooperating means on the first and second members to effect rotation of the member connected with the bottom hole assembly to be oriented and a lock normally retained by a spring in unlocked relation to the first and second members but responsive to fluid pressure in the orienting well tool to lock the first and second members together in a predetermined oriented position comprising the steps of:
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lowering the drill string with the well tool and bottom hole assembly including the directional drilling equipment including a fluid actuated motor and drilling member actuated thereby into the well bore; relaying to the surface equipment information from the instruments; manipulating the drill string longitudinally and the member connected therewith longitudinally to rotate the member connected with the bottom hole assembly directional drilling equipment including a fluid actuated motor and drilling member actuated thereby relative to the member connected to the drill string to orient the bottom hole assembly to position the directional drilling equipment including a fluid actuated motor and drilling member actuated thereby to drill the well bore to the target area; supplying fluid pressure to the motor to actuate the drilling member to drill the well bore; and moving the non rotatable, longitudinally movable drill string in the well bore. - View Dependent Claims (65, 66, 67, 68, 69, 70, 71, 72, 73, 74)
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75. A method of orienting a device to at least one position in a well bore by a well string which is connected to one member of a down hole orienting tool with the device connected to to at least one other member of the down hole orienting tool, the members including cooperating means operable by manipulation of the well string to rotate the member connected to the device relative to the well string and a releasable, fluid actuated lock to lock the members in the position to which the device is oriented, comprising the steps of:
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lowering the well string with the members and the device into the well bore; lowering the well string with the one member connected therewith to rotate the device connected with the other member to a predetermined oriented position; and locking the members together in the oriented position. - View Dependent Claims (76)
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Specification