Subsea wireline lubricator
The present invention concerns a pressure containment device for use in a lubricator. The device includes a housing having a first main bore extending throughout its length a number of transversal bores intersecting the main bore. Pairs of opposing rams are located in the transversal bores to grip and seal around a cable in the main bore.
1. A pressure containment device comprising:
a housing;
a first bore which extends generally longitudinally through the housing and is arranged to receive a wire or cable slidingly therethrough;
at least second and third spaced apart bores which extend generally transversely through the housing and intersect the first bore;
a pair of opposing rams which are positioned in each of the second and third bores; and
a sleeve lining which is removably positioned in the first bore and through which the wire or cable extends, the sleeve lining comprising an inner diameter which corresponds to the outer diameter of the wire or cable.
2. The device according to claim 1 , further comprising a fourth bore which is located between the second and third bores and which extends into the first bore.
3. The device according to claim 2 , wherein the sleeve lining comprises a first sleeve which is positioned between the second and third bores.
4. The device according to claim 3 , wherein the first sleeve extends between the second and fourth bores and the sleeve lining further comprises a second sleeve which extends between the third and fourth bores.
5. The device according to claim 3 , wherein the first sleeve comprises a port which is aligned with the fourth bore.
6. The device according to claim 1 , wherein each ram comprises a front part which is constructed of an elastic material.
7. The device according to claim 6 , wherein the front part includes a slot for the wire or cable.
8. The device according to claim 1 , wherein each ram comprises a front part which includes a knife for cutting the wire or cable.
9. The device according to claim 1 , wherein the sleeve lining comprises a number of individual sleeves.
10. A subsea lubricator comprising:
a blowout preventer;
a tool housing; and
a grease injector assembly which comprises a pressure containment device that includes;
a housing;
a longitudinal bore which extends through the housing and is arranged to receive a wire or cable slidingly therethrough;
a first transversal bore which extends through the housing and intersects the longitudinal bore;
a first pair of rams which are positioned in the first transversal bore;
a second transversal bore which extends through the housing and intersects the longitudinal bore;
a second pair of rams which are positioned in the second transversal bore; and
a grease supply bore which extends through the housing between the first and second transversal bores and which intersects the longitudinal bore;
a sleeve lining which is removably positioned in the longitudinal bore and through which the wire or cable extends;
wherein the sleeve lining comprises a number of individual sleeves, including a first sleeve which is positioned between the first and second transversal bores; and
a third transversal bore which intersects the longitudinal bore and is located between the first and second transversal bores.
11. The subsea lubricator according to claim 10 , wherein the first sleeve extends between the first and third transversal bores and the sleeve lining further comprises a second sleeve which extends between the second and third transversal bores.
12. The subsea lubricator according to claim 10 , wherein the first sleeve comprises a port which is aligned with the third transversal bore.