Visualization of fish while fishing in a wellbore
Methods and apparatus for retrieving a fish from a wellbore. A method includes introducing a specialized fishing tool into the wellbore. The specialized fishing tool includes a fishing subassembly comprising a nonreflective interior, a shroud coupled to the fishing subassembly, and a camera disposed at least partially within the shroud and configured to view the interior of the fishing subassembly. The specialized fishing tool is conveyed downhole in the wellbore to a location of the fish. The fish is visualized with the camera. The fish is coupled to the fishing subassembly, and the fish is retrieved from the wellbore.
1 . A specialized fishing tool comprising:
a fishing subassembly comprising a nonreflective interior and a fishing mechanism selected from the group consisting of an overshot tool, a flow-activated overshot tool, a mechanical overshot tool, a centralizer tool, a pulling tool, a jar tool, a hammer tool, a running tool, and any combination thereof,
a shroud coupled to the fishing subassembly, and
a camera disposed at least partially within the shroud and configured to view the nonreflective interior of the fishing subassembly.
2 . The specialized fishing tool of claim 1 , further comprising at least one light.
3 . The specialized fishing tool of claim 2 , wherein the light's brightness is controlled via a control signal conveyed from an operator.
4 . The specialized fishing tool of claim 1 , further comprising an annular space between the shroud and the camera configured to allow fluid flow therethrough.
5 . The specialized fishing tool of claim 1 , wherein the camera is selected from the group consisting of a camera with down view capability, a camera with flowthrough capability, a camera without flowthrough capability, and any combination thereof.
6 . The specialized fishing tool of claim 1 , wherein the camera is controlled via a control signal conveyed from an operator.
7 . The specialized fishing tool of claim 1 , wherein the shroud comprises a material selected from the group consisting of steel, stainless steel, a nickel-chromium alloy, plastic, aluminum, nickel, carbon fiber, fiberglass, alloys thereof, and any combination thereof.
8 . The specialized fishing tool of claim 1 , wherein the nonreflective interior of the fishing subassembly comprises a nonreflective paint.
9 . A method for retrieving a fish from a wellbore, the method comprising: introducing a specialized fishing tool into the wellbore, the specialized fishing tool comprising:
a fishing subassembly comprising a nonreflective interior,
a shroud coupled to the fishing subassembly, and
a camera disposed at least partially within the shroud and configured to view the nonreflective interior of the fishing subassembly,
conveying the specialized fishing tool downhole in the wellbore to a location of the fish,
visualizing the fish with the camera,
coupling the fish to the fishing subassembly, and
retrieving the fish from the wellbore.
10 . The method of claim 9 , wherein the fish is contacted with a fluid ejected from the specialized fishing tool prior to coupling the fish to the fishing subassembly.
11 . The method of claim 9 , wherein the fish is visualized by the camera as it is being retrieved from the wellbore.
12 . The method of claim 9 , wherein there is no prior operation to send a camera to visualize the fish prior to the introducing the specialized fishing tool into the wellbore.
13 . The method of claim 10 , wherein the specialized fishing tool further comprises at least one light.
14 . The method of claim 13 , wherein the light's brightness is controlled via a control signal conveyed from an operator.
15 . The method of claim 9 , wherein the camera is controlled via a control signal conveyed from an operator.
16 . A system for retrieving a fish from a wellbore, the system comprising:
a specialized fishing tool comprising:
a fishing subassembly comprising a nonreflective interior and a fishing mechanism selected from the group consisting of an overshot tool, a flow-activated overshot tool, a mechanical overshot tool, a centralizer tool, a pulling tool, a jar tool, a hammer tool, a running tool, and any combination thereof,
a shroud coupled to the fishing subassembly, and
a camera disposed at least partially within the shroud and configured to view the interior of the fishing subassembly, and
a top tool assembly coupled to the shroud.
17 . The system of claim 16 , further comprising a wireline coupled to the top tool assembly.
18 . The system of claim 16 , wherein the specialized fishing tool further comprises at least one light, and wherein the light's brightness is controlled via a control signal conveyed from an operator.
19 . The system of claim 16 , wherein the camera is controlled via a control signal conveyed from an operator.
20 . The system of claim 16 , wherein the camera is selected from the group consisting of a camera with down view capability, a camera with flowthrough capability, a camera without flowthrough capability, and any combination thereof.