초록 ▼

An improved packer (plug/bridge plug) for us in the exploitation of subterranean oil and/or gas reserves comprises a mechanism (50,52) for anchoring the packer (5) within an oil/gas well, a mechanism (55,56,60,65) for setting the anchoring means (50,52), a sealing element (180), and a mechanism for

An improved packer (plug/bridge plug) for us in the exploitation of subterranean oil and/or gas reserves comprises a mechanism (50,52) for anchoring the packer (5) within an oil/gas well, a mechanism (55,56,60,65) for setting the anchoring means (50,52), a sealing element (180), and a mechanism for setting the sealing element, wherein the mechanism (60,65,155) for setting the anchoring means (50,52) comprises a biasing mechanism (60,65), and means (155) for releasably retaining the biasing mechanism (60, 65) in an energized state, wherein, in use, when the releasable retaining mechanism (55, 56) are released the biasing mechanism (60,65) act on the anchoring means (50,52) so as to cause the anchoring mechanism (50,52) to move into a deployed position.

대표청구항 ▼

[ We claim:] [1.] A packer comprising:anchoring means for anchoring the packer within an oil/gas well;first setting means for setting the anchoring means, the first setting means including means for biasing the anchoring means and releasable retaining means for releasably retaining the biasing means

[ We claim:] [1.] A packer comprising:anchoring means for anchoring the packer within an oil/gas well;first setting means for setting the anchoring means, the first setting means including means for biasing the anchoring means and releasable retaining means for releasably retaining the biasing means in an energised state;sealing means for sealing the packer in the oil/gas well; andsecond setting means for setting the sealing means;wherein in use, when the releasable retaining means are released, the biasing means act on the anchoring means so as to cause the anchoring means to move into a deployed position.