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27 Cards in this Set
- Front
- Back
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What are the main 4 tools in the wireline?
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Rope socket (connects tool to winch); stem (it adds weight); jars (hammer); and knuckle joint (provides flexibility).
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What is the primary barrier in wireline?
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The stuffing box.
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What is the secondary barrier in wireline?
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The wireline BOP.
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What is the tertiary barrier in wireline?
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The wire-cutting valve.
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What are the primary and secondary barriers if the wire is cut?
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The primary barrier is the internal BOP at the stuffing box. The secondary barrier is the swab valve.
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What is the name of the type of connection in wireline?
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Quick union.
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Can a quick union made up by hand cause a leak path?
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No, they are designed to be hand tied.
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What is the minimum test pressure for wireline?
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Closed-in tubing head pressure (CITHP).
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Why do we mount the BOP directly on to of the tree for slickline?
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To have easy access; to reduce potential leak paths; and to maximize the length of tools we can run.
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When do we have to close the BOP?
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To repair anything above that is leaking; when we have to drop the cutter bar to cut wireline); and to thread broken wire over the stuffing box back to the reel.
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When do we pick up additional BOPs?
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When fishing so we have a BOP for each diameter of wireline.
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When do we pick up more lubricators?
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When fishing to accommodate the fish.
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Where is a stuffing box used?
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Only for slickline. Braided line uses a grease head.
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What do we need to check on the gland nut before RIH?
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We must ensure there is some adjustment on it.
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What are grease nipples used for?
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To lubricate the bearings on the stuffing box.
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What is the vent valve used for?
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For chemical injection.
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What do we need to do before opening the BOP?
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Equalize the pressure?
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What is the seal gate?
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It is a tool to guide the wire to the seal when closing the BOP.
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Which connections do we rig up to for closing the BOP?
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Outer connections to push in the pistons.
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What steps are involved in closing the BOP with wireline across?
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Pump rams close; lock the rams close; bleed off; inflow test; pick up lubricator.
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How many rams do we need for braided line?
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Two. The top one contains well pressure from below and the bottom one contains grease pressure from above for the seal.
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What is the ram configuration in braided line jobs?
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Normal braided ram. Inverted braided ram. Shear ram seal.
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What are the steps to pressure test the BOP for braided line?
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Open all rams; insert test rod; close rams (seal); pressure from grease seal inlet.
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Are the inner seals for braided and slickline the same?
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No, braided seals have a groove across them.
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What is the configuration that replaces the stuffing box on braided line jobs?
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We use a grease head and three flowtubes underneath.
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What are the names of the conduits above and below the BOP for braided line?
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Above we have lubricator joints and below we have the riser.
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Where is the safety check union installed?
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It is located immediately below the grease head. It is the primary barrier for braided wire that has been cut and out of the conduit.
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