Sand control screen assembly having an internal seal element and treatment method using the same
First Claim
1. A sand control screen assembly positionable within a wellbore comprising:
- a base pipe having a blank pipe section and a perforated section 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; and
an internal seal element positioned at least partially within the perforated section of the base pipe that controls fluid flow through the opening of the base pipe.
1 Assignment
0 Petitions
Accused Products
Abstract
A sand control screen assembly (90) that is positionable within a wellbore comprises a base pipe (92) having a blank pipe section (94) and a perforated section (96) having at least one opening (98) that allows fluid flow therethrough. A filter medium (100) is positioned about the exterior of the base pipe (92) that selectively allows fluid flow therethrough and prevents particulate of a predetermined size from flowing therethrough. An internal seal element (104) is positioned at least partially within the perforated section (96) of the base pipe (92). The internal seal element (104) controls the flow of fluid through the opening (98) of the base pipe (92) such that fluid flow is prevented from the interior to the exterior of the sand control screen assembly (90) but is allowed from the exterior to the interior of the sand control screen assembly (90).
-
Citations
25 Claims
-
1. A sand control screen assembly positionable within a wellbore comprising:
-
a base pipe having a blank pipe section and a perforated section 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; and
an internal seal element positioned at least partially within the perforated section of the base pipe that controls fluid flow through the opening of the base pipe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A sand control screen assembly positionable within a wellbore comprising:
-
a base pipe having a blank pipe section and a perforated section 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; and
an internal seal element positioned at least partially within the perforated section of the base pipe, the internal seal element having a sealing position wherein fluid flow from the interior to the exterior of the sand control screen assembly is prevented and a non sealing position wherein fluid flow from the exterior to the interior of the sand control screen assembly is allowed, in the sealing position, the internal seal element is radially outwardly deformed and in the non sealing position, the internal seal element is radially inwardly deformed. - View Dependent Claims (12, 13, 14, 15, 16)
-
-
17. 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 a blank pipe section and a perforated section having at least one opening, a filter medium positioned about an exterior of the base pipe and an internal seal element positioned at least partially within the perforated section of the base pipe;
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 the internal seal element that controls fluid flow therethrough. - View Dependent Claims (18, 19, 20, 21)
-
-
22. 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 a blank pipe section and a perforated section having at least one opening, a filter medium positioned about an exterior of the base pipe and an internal seal element positioned at least partially within the perforated section of the base pipe;
pumping a treatment fluid into the production interval;
taking fluid returns from the exterior to the interior of the sand control screen assembly;
preventing fluid loss from the interior to the exterior of the sand control screen assembly with the internal seal element; and
allowing production fluid flow from the exterior to the interior of the sand control screen assembly. - View Dependent Claims (23, 24, 25)
-
Specification