초록 ▼

A retrievable production packer is conditioned for initial wireline installation in a well utilizing an adapter comprising an outer sleeve and an inner rod connected to a mandrel carrying the slip assembly of the packer. The packer is frangibly supported in an initial transport condition for being s

A retrievable production packer is conditioned for initial wireline installation in a well utilizing an adapter comprising an outer sleeve and an inner rod connected to a mandrel carrying the slip assembly of the packer. The packer is frangibly supported in an initial transport condition for being set by means of a wireline setting device. A flow control device, such as a blanking plug, may be seated in the packer mandrel at the very top of the packer while being lowered into position and set with a wireline setting device. Thereafter, the tubing string may be connected to the packer downhole to release the packer and retrieve it from the well.

대표청구항 ▼

An adapter for use in setting a well packer by means of a wireline setting device with a flow control device removably seated at a top of the well packer and wherein the well packer is of the type including outer packer housings including slip assemblies and a sealing unit, and a tubular mandrel ext

An adapter for use in setting a well packer by means of a wireline setting device with a flow control device removably seated at a top of the well packer and wherein the well packer is of the type including outer packer housings including slip assemblies and a sealing unit, and a tubular mandrel extending therethrough for relative movement therebetween to anchor the well packer to the well casing and to create a seal in the well casing, said adapter comprising: (a) a first member engaged with the wireline setting device and an upper packer housing for applying a first force in a first direction on said upper packer housing when the wireline setting device is actuated, said first member including an outer sleeve connected to an outer housing of the wireline setting device and positioned to bear on a cap disposed at a top portion of said upper packer housing for applying a downward force in a downward direction on said upper packer housing; and (b) a second member engaged with the wireline setting device and the tubular mandrel for applying a second force in a second direction opposite to the first direction, when the wireline setting device is actuated, said second member including a rod having a first end attached to a plunger of the wireline setting device, and a second end including a cone, said cone being adapted to extend over a top of said flow control device which is seated in the tubular mandrel and to releasably engage the tubular mandrel for applying an upward force in an upward direction on the tubular mandrel until the well packer is engaged with the well casing and actuated to create the seal and to thereafter disengage from the tubular mandrel, said second member further including a shear collar on said rod and a collet having collet fingers attached to said shear collar, and said collet fingers extending downwardly adjacent said cone and being held in engagement with a recess on a top of the tubular mandrel by said cone until said shear collar shears and said cone is withdrawn, upon further upward movement of said cone said collet fingers collapsing inwardly and disengaging from said recess; whereby after the well packer is engaged with the well casing and actuated to create the seal, continued application of the upward force by the wireline setting device causes said adaptor to disengage from the well packer such that said adaptor may be completely removed from the well packer with the flow control device remaining seated at the top of the well packer to inhibit fluid flow through the tubular mandrel.