دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the equipment and crew needed to build a pipeline. Modem spreads, which are like moving assembly lines, can con- sist of one hundred pieces of equipment and over five hundred workers.

v: 1. to move the drill stem up and down in the hole over a short distance without rotation. Careless execution of this operation creates pressure surges that can cause a formation to break down, resulting in lost circulation. 2. to force a wireline tool or tubing down the hole by using a reciprocating motion. 3. to begin drilling a well;i.e., to spud in.

n: To start the well drilling process by removing rock ,dirt and other sedimentary material with the drill bit.

to begin drilling.

n: the first boring of a bole in the drilling of a well.

the date that drilling operations commenced and were reported to the governing regulatory body.

n: a special threadless tool joint for large-diameter pipe, especially conductor pipe, sometimes used on offshore drilling rigs. When the box is brought down over the pin and weight is applied, a locking device is actuated to seat the joints. Because no rotation is required to make up these joints, their use can save time when the conductor pipe is being run. Squnch Joint is a registered trademark of the manufacturer.

n: I. the ability of a ship or mobile offshore drilling rig to return to an upright position when it has rolled to either side because of an external force (such as waves). 2. the ability of a measuring instrument to maintain its accuracy over a long period.

v: to support tubing in the derrick or mast when it is out of the well rather than to lay it on a rack. Portable workover rigs are usually fitted with a mast that holds stands about 60 feet long (about 18 metres) (doubles).

n pi: (SIC) numerical codes assigned by the government to groups of industries with similar activities or operations.

n: (SERC) entity set up by each state health department typically and at the request of the governor under the Emergency Planning and Community Right-to-Know Act of 1986 to designate emergency planning districts at the local level.

n: the pressure exerted by a fluid upon a surface that is at rest in relation to the fluid.

n: The pressure measured in a well after the well has been closed in for a period of time, often after 24 or 72 hours. When a reservoir is first discovered, the static pressure equals the initial pressure. After production begins, the static pressure approac

the pressure when the well is not flowing. Can be surface static pressure or bottom hole static pressure.

n: in gas measurement by orifice meters, the spring in a flow recorder whose size and strength determines the range over which static pressure will be recorded.