Timothy M Bozeman

US Patent:

8127859, Mar 6, 2012

Filed:

Oct 21, 2010

Appl. No.:

12/909193

Inventors:

David B. Allison - Duncan OK, US
Timothy Bozeman - Mansfield TX, US
Michael MacDonald - Alvarado TX, US
Alf K. Sevre - Houston TX, US
Earl Webb - Wilson OK, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B 33/14

US Classification:

166387, 166285

Abstract:

A method of sealing an annulus formed between a casing string and a surface in a well may include: positioning a seal element in the annulus with a swellable material of the seal element positioned between the casing string and the surface; and flowing cement through a channel formed between the swellable material and the casing string. A method of sealing in a well may include the steps of: positioning an annular seal element in the well, wherein the element may include a swellable material; and flowing cement into at least one channel formed longitudinally through the seal element. A method of sealing an annulus between two casing strings may include: providing multiple arcuate segments that may include a swellable material; and installing the segments in the annulus, wherein each of the segments may occupy a respective circumferential portion of the annulus.

US Patent:

20100126735, May 27, 2010

Filed:

Nov 24, 2008

Appl. No.:

12/276790

Inventors:

David B. Allison - Duncan OK, US
Timothy Bozeman - Mansfield TX, US
Michael MacDonald - Cleburne TX, US
Alf K. Sevre - Houston TX, US
Earl Webb - Wilson OK, US

Assignee:

HALLIBURTON ENERGY SERVICES, INC. - Carrollton TX

International Classification:

E21B 33/13
E21B 33/127

US Classification:

166387, 277337, 166179

Abstract:

A method of sealing an annulus formed between a casing string and a surface in a well includes: positioning a seal element in the annulus, a swellable material of the seal element being positioned between the casing string and the surface; and flowing cement through a channel formed between the swellable material and the casing string. A method of sealing in a well includes the steps of: positioning an annular seal element comprising a swellable material in the well; and flowing cement into at least one channel formed longitudinally through the seal element. A method of sealing an annulus between two casing strings includes: providing multiple arcuate segments, each of the segments comprising a swellable material; and installing the segments in the annulus, each of the segments thereby occupying a respective circumferential portion of the annulus.