CT Releasable Overshot

The DTI CT Releasable Overshot is a hydraulic release action tool used for fishing downhole tools or parts of broken tools without a fish neck that have been lost in the well tubing.

The DTI CT Releasable Overshot has hardened grapple slips arranged inside a tapered bowl. Once the grapple slips are engaged on the fish, upward jarring will make the teeth bite and hold fast.

Release is achieved by increasing CT flow/pressure to operate a piston which disengages the tapered bowl from the grapple slips.

The DTI Releasable Overshot is available in sizes covering a wide range of fishing diameters.

Bell guide skirts are also available.

For more information, check out the PDF below.

DTI Overshot Grapple Chart

Download Product PDF

DTI offer alternate sizes, materials and thread connections. Please contact us for more information.

Part NumberSizeOutside DiameterOtherCatch Range
COS200**THREAD2.00"1.85"Std. Grapple: 1.00"0.50 - 1.50"
COS250**THREAD2.50"2.25"Std. Grapple: 1.50"0.50 - 1.75"
COS300**THREAD3.00"2.625"Std. Grapple: 2.00"0.50 - 2.00"
COS350**THREAD3.50"3.25"Std. Grapple: 2.00"0.50 - 2.25"
COS400**THREAD4.00"3.75"Std. Grapple: 2.50"0.50 - 2.75"
COS500**THREAD5.00"4.50"Std. Grapple: 3.00"0.50 - 3.63"

CT Releasable Overshot

COS400AA23 Overshot Flow Release

The DTI CT Releasable Overshot is a hydraulic release action tool used for fishing downhole tools or parts of broken tools without a fish neck that have been lost in the well tubing.

The DTI CT Releasable Overshot has hardened grapple slips arranged inside a tapered bowl. Once the grapple slips are engaged on the fish, upward jarring will make the teeth bite and hold fast.

Release is achieved by increasing CT flow/pressure to operate a piston which disengages the tapered bowl from the grapple slips.

The DTI Releasable Overshot is available in sizes covering a wide range of fishing diameters.

Bell guide skirts are also available.

For more information, check out the PDF below.

DTI Overshot Grapple Chart

Data Table

Part NumberSizeOutside DiameterOtherCatch Range
COS200**THREAD2.00"1.85"Std. Grapple: 1.00"0.50 - 1.50"
COS250**THREAD2.50"2.25"Std. Grapple: 1.50"0.50 - 1.75"
COS300**THREAD3.00"2.625"Std. Grapple: 2.00"0.50 - 2.00"
COS350**THREAD3.50"3.25"Std. Grapple: 2.00"0.50 - 2.25"
COS400**THREAD4.00"3.75"Std. Grapple: 2.50"0.50 - 2.75"
COS500**THREAD5.00"4.50"Std. Grapple: 3.00"0.50 - 3.63"

Product Customisation

DTI offer alternate sizes, materials and thread connections. Please contact us for more information.