A multi-barrier seal system, including, a first seal assembly configured to provide a first sealing barrier between an auxiliary line and a mineral extraction system, and a second seal assembly configured to provide a second sealing barrier between the auxiliary line and the mineral extraction syste
A multi-barrier seal system, including, a first seal assembly configured to provide a first sealing barrier between an auxiliary line and a mineral extraction system, and a second seal assembly configured to provide a second sealing barrier between the auxiliary line and the mineral extraction system, wherein the second seal assembly is configured to shear through the auxiliary line.
대표청구항▼
1. A system, comprising: a seal assembly, comprising: a seal housing;a ram receptacle extending through the seal housing; anda shearing ram disposed in the ram receptacle and configured to move along a first axis within the ram receptacle to shear an auxiliary line, wherein the shearing ram is the o
1. A system, comprising: a seal assembly, comprising: a seal housing;a ram receptacle extending through the seal housing; anda shearing ram disposed in the ram receptacle and configured to move along a first axis within the ram receptacle to shear an auxiliary line, wherein the shearing ram is the only shearing ram disposed in the ram receptacle, the shearing ram comprises a recess formed in a sealing surface of the shearing ram, and wherein the recess extends a first distance along the first axis, the recess defines a first width along a second axis perpendicular to the first axis, the recess is open at a distal end of the shearing ram, and the recess defines a shearing edge configured to shear the auxiliary line, wherein the shearing ram comprises a second surface opposite the sealing surface, the second surface defining a cavity that is open to the distal end of the shearing ram, the cavity extends a second distance along the first axis, and the cavity defines a second width, and wherein the first width is less than the second width and the first distance is less than the second distance. 2. The system of claim 1, wherein the recess and the cavity form a continuous space open to the distal end of the shearing ram that enables the auxiliary line to extend through both the recess and the cavity prior to shearing of the auxiliary line by the shearing ram. 3. The system of claim 2, wherein the recess comprises a first thickness along a third axis perpendicular to the first axis, the cavity comprises a second thickness along the third axis, and the second thickness is greater than the first thickness. 4. The system of claim 1, wherein the seal housing comprises a first auxiliary line passage and a second auxiliary line passage each configured to support the auxiliary line, and the ram receptacle extends through the seal housing between the first auxiliary line passage and the second auxiliary line passage. 5. The system of claim 4, wherein the shearing ram is configured to seal only one of the first auxiliary line passage and the second auxiliary line passage after shearing the auxiliary line. 6. The system of claim 1, comprising an insert within the ram receptacle, wherein the insert is configured to form a seal with the shearing ram. 7. The system of claim 6, comprising a spring, wherein the spring is configured to bias the shearing ram against the insert to form the seal. 8. A system, comprising: a shearing ram configured to shear through an auxiliary line of a mineral extraction system, the shearing ram comprising: a first surface, wherein the first surface is configured to form a seal;a first recess formed in the first surface, wherein the first recess is open at a distal end of the shearing ram and defines a shearing edge configured to shear the auxiliary line;a spring, wherein the spring is configured to bias the first surface of the shearing ram to form the seal; anda retaining nut, wherein the retaining nut is configured to bias the spring. 9. The system of claim 8, wherein the shearing ram comprises a second surface opposite the first surface, and wherein the first recess extends from the first surface to the second surface. 10. The system of claim 8, wherein the shearing ram comprises a second surface opposite the first surface, and wherein a second recess is formed in the second surface, the second recess is open to the distal end of the shearing ram, and the first recess and the second recess form a continuous space extending between the first surface and the second surface and open to the distal end of the shearing ram to enable the auxiliary line to extend through both the first recess and the second recess prior to shearing of the auxiliary line by the shearing ram. 11. The system of claim 10, wherein the first recess has a first width, a first height, and a first depth, and the second recess has a second width, a second height, and a second depth, and wherein the second width is greater than the first width, the second height is greater than the first height, and the second depth is greater than the first depth. 12. The system of claim 8, wherein the shearing edge is positioned on the first surface. 13. The system of claim 8, wherein the shearing ram is part of a sealing assembly, and the shearing ram is configured to provide a sealing barrier between an auxiliary line passage and the mineral extraction system. 14. The system of claim 8, wherein the first surface comprises a sealing surface configured to contact and to seal an auxiliary line passage of the mineral extraction system after the shearing ram shears the auxiliary line. 15. The system of claim 8, comprising a seal housing having opposite first and second housing portions disposed about a ram receptacle, wherein the first housing portion comprises a first auxiliary line passage, the second housing portion comprises a second auxiliary line passage aligned with the first auxiliary line passage, and the shearing ram is disposed in the ram receptacle, wherein the seal housing is configured to pass the auxiliary line through the first auxiliary line passage, the ram receptacle, and the second auxiliary line passage. 16. The system of claim 8, wherein the first recess comprises a U-shape or a V-shape. 17. The system of claim 8, wherein the shearing edge comprises a removable shearing edge insert configured to be removably coupled to the first recess. 18. A method, comprising: moving a shearing ram through a ram receptacle of a seal housing, wherein the shearing ram is the only shearing ram disposed in the ram receptacle;receiving an auxiliary line of a mineral extraction system into a recess formed in a sealing surface of the shearing ram and open at a distal end of the shearing ram when the shearing ram is moved to a first position within the ram receptacle;shearing the auxiliary line with a shearing edge defined by the recess when the shearing ram is moved to a second position within the ram receptacle; andsealing an auxiliary line passage supporting the auxiliary line by biasing the shearing ram with a spring to form a sealing barrier between the sealing surface of the shearing ram and the auxiliary line passage, wherein the spring is biased with a retaining nut.
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이 특허에 인용된 특허 (11)
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