Wireline Fishing Spear Types and Operations

Wireline parted in the hole can be retrieved with either a center prong rope fishing spear, double prong spear, or crank type spear. A typical bottom hole assembly used to fish for wireline would consist of the following components: In cased holes, always run a stop on top of the spear that is 1/8″ to …

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Russian Oil And Gas Banning Effect On Worldwide Prices

Biden said at the White House about banning the Russian oil and gas : The day before, Canada became the first G7 country to abandon Russian oil. Prime Minister Justin Trudeau: “This measure sends a powerful message”. The American ban is more than a symbol. It shakes the energy market, it can lead to political …

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Lead Impression Block In Oil & Gas

The Lead Impression Block in oil and gas is designed to give an imprint of the top of a fish in the hole to help determine the condition and position of the top of the fish. The Impression Block can also be used to give clues on how to retrieve an unknown fish in the …

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Side Door Overshot Definition & Procedure For Wireline

The side door overshot method is another option for freeing a stuck logging tool. In this method, the line is not cut and a rope socket overshot is not required. However, cut & thread fishing is typically the best option. Applications The Bowen Series 160 fishing overshot is only recommended for fishing in cased-hole environments …

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Cut And Thread Fishing Technique Definition & Procedure

The cable guide method or “cut and Thread” method is one technique for fishing stuck wireline (Check also: Sticking Pipe) and/or logging tools. Even though it is dangerous and time-consuming, the cable guide method is preferred over the side door overshot method as it is the surest method. This method is used for retrieving wireline …

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Types Of Drilling Fluids (Mud) In Oil & Gas Industry

The principal factors governing the selection of type (or types) of drilling fluids (mud) to be used on a particular well are: The characteristics and properties of the formation to be drilled The quality and source of the water to be used in building the fluid The ecological and environmental considerations Continuous-Phase Classification. Drilling fluids …

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Drilling Mud Properties Guide In Oil & Gas Wells

Various properties of the drilling fluids are measured as an indication of the performance of the mud in the hole. Methods for measurement of these properties are stated in API RP 13B “Recommended Practice on Standard Procedure for Testing Drilling Fluids” (Check Also WBM Testing Procedure – OBM Testing Procedure). These procedures are revised and …

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Spear Fishing Tools Mechanism & Operations

The Releasing Spear Fishing Tools are used in drilling to internally engage and to retrieve all sizes of tubing, drill pipe, and casing as opposed to overshots that catch on the outside. It is designed to assure positive internal engagement with the fish and is ruggedly built to withstand severe jarring (Drilling Jars) and pulling …

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Drilling Cost Per Foot Formula & Limitations

Oil well drilling cost per foot is a convenient way of comparing the economic impact of bit performances (Roller cone bit performance – PDC bit performance) on a well that is to be drilled. We are not interested in the absolute, actual, real, or true cost per foot on a real well. Bit prices, rig …

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Bumper Sub Applications, Types & Operations

The bumper sub (Drilling Subs) is usually installed in the drill string just above the fishing tool (overshot) or safety joint.  Its presence in the string enables the operator to release the fishing tool in the event that it is needed in the fishing operations.  It will deliver the sharp downward blow that is required …

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