Enhanced acid soluble wellbore strengthening solution
AssigneeM-I L.L.C.
InventorsJorge Arias Prada, Steven Philip Young, Quanxin Guo, John D. Moffitt
Life of this patent
Estimating the term…
Abstract
Wellbore fluid compositions containing a base fluid; at least one synthetic fiber; and a particulate solid; where one or more of the at least one synthetic fiber and the particulate solid are completely or substantially acid soluble are provided. In another aspect, methods of reducing loss of wellbore fluid in a wellbore to a formation are provided, including: introducing into the wellbore a fluid composition comprising one or more synthetic fibers and one or more particulate solids.
Claims22
A wellbore fluid composition comprising:
- a base fluid;
- at least one synthetic fiber;
- and
- a particulate solid;
- wherein one or more of the at least one synthetic fiber and the particulate solid are completely or substantially acid soluble, and
- wherein the at least one synthetic fiber is added to the wellbore fluid composition at 0.25 wt % to 3 wt % of the weight of the added particulate solid;
- wherein the wellbore fluid composition contains substantially no synthetic fiber having a length equal to or more than 8 mm;
- and
- wherein the at least one synthetic fiber has a denier of at least 2.
A method of reducing loss of wellbore fluid in a wellbore to a formation, comprising:
- introducing into the wellbore a fluid composition comprising one or more synthetic fibers and one or more particulate solids, wherein the fluid composition contains the one or more synthetic fibers at 0.25 wt % to 3 wt % of the weight of the one or more particulate solid,
- wherein the wellbore fluid composition contains substantially no synthetic fiber having a length equal to or more than 8 mm;
- wherein the one or more synthetic fibers have a denier of at least 2.
A method of reducing loss of wellbore fluid in a wellbore to a formation, comprising:
- introducing into the wellbore a fluid composition comprising one or more synthetic fibers;
- and
- introducing a second fluid composition comprising one or more particulate solids,
- wherein the one or more synthetic fibers in the fluid composition are present at 0.25 wt % to 3 wt % of the weight of the added particulate solid in the second fluid composition;
- wherein the wellbore fluid composition contains substantially no synthetic fiber having a length equal to or more than 8 mm;
- wherein the one or more synthetic fibers have a denier of at least 2.
Dependencies are inferred from the claim text.