Sand control screen assembly having an internal isolation member and treatment method using the same

A sand control screen assembly positionable within a wellbore comprising:

• a base pipe having at least one opening that allows fluid flow therethrough;
• a filter medium positioned about the exterior of the base pipe, the filter medium selectively allowing fluid flow therethrough and preventing particulate flow of a predetermined size therethrough;
• an internal isolation member positioned within the base pipe, the internal isolation member having at least one opening;
• and
• a one-way valve positioned at least partially within the opening of the internal isolation member that prevents fluid flow from the interior to the exterior of the sand control screen assembly and is actuatable to allow fluid flow from the exterior to the interior of the sand control screen assembly.

A sand control screen assembly positionable within a wellbore comprising:

• a base pipe having at least one opening that allows fluid flow therethrough;
• a filter medium positioned about the exterior of the base pipe, the filter medium selectively allowing fluid flow therethrough and preventing particulate flow of a predetermined size therethrough;
• an internal isolation member positioned within the base pipe, the internal isolation member having at least one opening;
• and
• a one-way valve positioned at least partially within the opening of the internal isolation member, the one-way valve having a first operating mode wherein the one-way valve prevents fluid flow from the interior to the exterior of the sand control screen assembly and is actuatable to allow fluid flow from the exterior to the interior of the sand control screen assembly and a second operating mode wherein the one-way valve allows fluid flow from the interior to the exterior and from the exterior to the interior of the sand control screen assembly.

A sand control screen assembly positionable within a wellbore comprising:

• a base pipe having at least one opening that allows fluid flow therethrough;
• a filter medium positioned about the exterior of the base pipe, the filter medium selectively allowing fluid flow therethrough and preventing particulate flow of a predetermined size therethrough;
• an internal isolation member positioned within the base pipe and forming a first annular region therewith;
• and
• a one-way valve positioned in a fluid flow path between the exterior and the interior of the sand control screen assembly that prevents fluid flow from the interior to the exterior of the sand control screen assembly and is actuatable to allow fluid flow from the exterior to the interior of the sand control screen assembly.

A downhole treatment method comprising the steps of:

• locating a sand control screen assembly within a production interval of a wellbore, the sand control screen assembly including a base pipe having at least one opening, a filter medium positioned about an exterior of the base pipe and an internal isolation member positioned within the base pipe that includes at least one opening;
• pumping a treatment fluid into the production interval;
• and
• preventing fluid flow from the interior to the exterior of the sand control screen assembly with a one-way valve operably associated with the at least one opening of the internal isolation member that controls fluid flow therethrough.

A downhole treatment method comprising the steps of:

• locating a sand control screen assembly within a production interval of a wellbore, the sand control screen assembly including a base pipe having at least one opening, filter medium positioned about an exterior of the base pipe and an internal isolation member positioned within the base pipe that includes at least one opening having a one-way valve operably associated therewith;
• pumping a treatment fluid into the production interval and taking fluid returns from the exterior to the interior of the sand control screen assembly through the one-way valve;
• preventing fluid loss from the interior to the exterior of the sand control screen assembly with the one-way valve;
• and
• allowing production fluid flow from the exterior to the interior of the sand control screen assembly through the one-way valve.