Wellbore tubular centralizer tool
A centralizer tool includes a top clamp including a top split ring and a top lock assembly configured to adjust the top clamp from an unlocked position and a locked position; a bottom clamp including a bottom split ring and a bottom lock assembly configured to adjust the bottom clamp from an unlocked position and a locked position; and at least one bow attached to the top split ring and the bottom split ring, the bow including a contact surface configured to contact a rock formation in a wellbore.
1. A centralizer tool, comprising:
a top clamp comprising a top split ring and a top lock assembly configured to adjust the top clamp from an unlocked position in which the top split ring is open to receive a first portion of a wellbore tubular and a locked position in which the top split ring is closed to secure the first portion of the wellbore tubular in the top clamp;
a bottom clamp comprising a bottom split ring and a bottom lock assembly configured to adjust the bottom clamp from an unlocked position in which the bottom split ring is open to receive a second portion of the wellbore tubular and a locked position in which the bottom split ring is closed to secure the second portion of the wellbore tubular in the bottom clamp; and
at least one bow attached to the top split ring and the bottom split ring, the bow comprising a contact surface configured to contact a rock formation in a wellbore,
wherein each of the top split ring and the bottom split ring comprises at least one outer slips that comprises a profiled surface and is coupled to an outer surface of the respective top split ring and bottom split ring and configured to contact the rock formation in the wellbore.
2. The centralizer tool of claim 1 , wherein the at least one bow comprises a plurality of bows, each bow attached to the top split ring and the bottom split ring.
3. The centralizer tool of claim 2 , wherein each bow of the plurality of bows is radially offset from adjacent bows by a particular distance.
4. The centralizer tool of claim 1 , wherein a circumference defined by the contact surfaces of the plurality of bows is greater than a circumference defined by the top clamp in the locked position and a circumference defined by the bottom clamp in the locked position.
5. The centralizer tool of claim 1 , wherein each of the top split ring and the bottom split ring comprises at least one inner slips coupled to an inner surface and configured to contact the wellbore tubular.
6. The centralizer tool of claim 1 , wherein the top lock assembly comprises a first set of sleeves and a second set of sleeves and a first pin configured to fit through the first and second set of sleeves in an interlocked position to adjust the top clamp into the locked position, and
the bottom lock assembly comprises a third set of sleeves and a fourth set of sleeves and a second pin configured to fit through the third and fourth set of sleeves in an interlocked position to adjust the bottom clamp into the locked position.
7. The centralizer tool of claim 6 , wherein the first pin comprises a leg that forms a U to retain the first pin within the first and second sets of sleeves in the interlocked position, and
the second pin comprises a leg that forms a U to retain the second pin within the third and fourth sets of sleeves in the interlocked position.
8. The centralizer tool of claim 6 , wherein the top split ring comprises two half-rings joined by a top hinge, and the top lock assembly comprises the first set of sleeves connected to one of the two half rings and the second set of sleeves connected to the other of the two half-rings of the top split ring, and
the bottom split ring comprises two half-rings joined by a bottom hinge, and the bottom lock assembly comprises the third set of sleeves connected to one of the two half rings and the fourth set of sleeves connected to the other of the two half-rings of the bottom split ring.
9. The centralizer tool of claim 1 , wherein the wellbore tubular comprises a production casing joint.
10. The centralizer tool of claim 1 , wherein the profiled surface comprises teeth.
11. The centralizer tool of claim 1 , wherein the at least one bow comprises four bows, each bow attached to the top split ring and the bottom split ring.
12. The centralizer tool of claim 11 , wherein the at least one outer slips comprises four outer slips corresponding to the four bows.
13. The centralizer tool of claim 12 , wherein each of the four outer slips is coupled to the outer surface of the respective top split ring and bottom split ring at a location where a particular bow of the four bows connects to the respective top split ring and bottom split ring.
14. The centralizer tool of claim 12 , wherein each bow of the four bows is radially offset from adjacent bows by 90 degrees.
15. The centralizer tool of claim 1 , wherein the at least one outer slips that comprises the profiled surface is attached to or integrated with the outer surface of the respective top split ring and bottom split ring.
16. The centralizer tool of claim 1 , wherein the at least one outer slips comprises eight outer slips, with four outer slips coupled to the top split ring and four outer slips coupled to the bottom slip ring.
17. The centralizer tool of claim 16 , wherein each of the top split ring and the bottom split ring comprises at least one inner slips coupled to an inner surface and configured to contact the wellbore tubular.
18. The centralizer tool of claim 17 , wherein the at least one inner slips comprises a plurality of inner slips coupled to the inner surface of the top split ring and a plurality of inner slips coupled to the inner surface of the bottom split ring.