Oilfield

Oilfield

Oilfield refers to a region with an abundance of oil wells extracting petroleum from below the ground.

Industry: Oil & gas

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Oilfield

Cylinder

Oil & gas; Oilfield

The barrel of the sucker rod pump. The plunger travels up and down in the cylinder. The plunger and the barrel operate as a piston mechanism to lift reservoir fluids into the subsurface pump. A ...

The axis along which the data in n-dimensional space is primarily distributed. In two dimensions, the first principal axis is the semimajor axis of the ellipse that best fits the data set. Multiple ...

Logarithmic mean

Oil & gas; Oilfield

The average value of a set of measurements, calculated by taking the logarithms of the measurements, finding the arithmetic average of the logarithms and then taking the antilogarithm of the average.

Shale baseline

Oil & gas; Oilfield

The average reading of the spontaneous potential (SP) log opposite the shale layers in a well. Opposite shales, the SP is relatively constant and changes only slowly with depth. This is the shale ...

Channelling

Oil & gas; Oilfield

The condition in which cement flows in a channel only on some sides of the casing or borehole annulus, and thus does not provide adequate hydraulic isolation in all radial azimuths. The channel ...

Total organic carbon

Oil & gas; Oilfield

The concentration of organic material in source rocks as represented by the weight percent of organic carbon. A value of approximately 0. 5% total organic carbon by weight percent is considered the ...

Snubbing jack

Oil & gas; Oilfield

The components of a snubbing unit that provide the vertical stroke or movement required to run or retrieve the work string. Snubbing jacks are hydraulically operated and can apply extremely high ...