دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a forged or cast steel fitting for a wire rope or a strand. It has a basket with adjustable bolts that secure rope ends. bridging materials n pI: the fibrous, flaky, or granular material added to a cement slurry or drilling fluid to aid in sealing formations in which lost circulation has occurred. See lost circulation, lost circulation material.

n: in crane operations, a sling composed of several legs, the tops of which are gathered in a fitting that goes over the cranes lifting hook. See leg.

n: 1. a pipe fitting on which the external thread is larger than the internal thread to allow two pipes of different sizes to be connected.2. a removable lining or sleeve inserted or screwed into an opening to limit its size, resist wear or corrosion, or serve as a guide.

n: The coupler used to connect different size of pipes. One end is male thread and the other is female thread.

n: See casing hardware.

n: a heavy, flanged steel fitting connected to the first string of casing. It provides a housing for slips and packing assemblies, allows suspension of intermediate and production strings of casing, and supplies the means for the annulus to be sealed off. Also called a spool.

n pi: a hand tool consisting of a handle and chain that resembles the chain on a bicycle. In general, chain tongs are used for turning pipe or fittings of a diameter larger than that which a pipe wrench would fit. The chain is looped and tightened around the pipe or fitting, and the handle is used to turn the tool so that the pipe or fitting can be tightened or loosened.

n: A tool used by roughnecks on the rig floor to tighten or loosen a connection. The tool consists of a long handle and an adjustable chain that will fit a variety of pipe sizes.

a type of hand or power operated wrench used to make up connections in pipe.

n: the conbul valves, pressure gauges, and chokes assembled at the top of a well to control the flow of oil and gas after the well has been drilled and completed. It is used when reservoir pressure is sufficient to cause reservoir fluids to flow to the surface.

n: The set of valves, spools and fittings connected to the top of a well to direct and control the flow of formation fluids from the well.


the control sections that sits above the basic wellhead. It may contain hangers, master valves, annular valves, wing valves, and gauges or pressure, flow rate or monitoring measurement equipment.

n: 1. a section of pipe or fitting used to join pipe to pipe or to a vessel. 2. a place in electrical circuits where wires join.3.the action of adding a joint of pipe to the drill stem as drilling progresses.

n: the joining of a section of drilling pipe to another

n: See core equipment.