- 行业: Oil & gas
- Number of terms: 8814
- Number of blossaries: 0
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A share of production after all burdens, such as royalty and overriding royalty, have been deducted from the working interest. It is the percentage of production that each party actually receives.
Industry:Oil & gas
A set of techniques used to prevent or considerably reduce paraffin deposition. Paraffin control might involve the following options:
* use of paraffin inhibitors.
* maintaining pipe surfaces in a water-wet condition because paraffin will not adhere to water. However, the presence of natural surfactants in some crude oils converts water-wet surfaces to an oil-wet condition, making this technique effective only temporarily.
* coating the pipe with plastic to provide a smooth surface and reduce paraffin adhesion.
* reducing heat transfer to maintain the oil temperature above its cloud point. Filling the annulus of a well with a fluid that has poorer heat transfer properties than the oil maintains the temperature of the flowing crude oil above its cloud point.
Industry:Oil & gas
A setting or operating method that uses hydraulic force applied through the tubing or running string to activate a downhole tool. In many cases a drop ball, which lands in a profiled seat, will be used to shift the setting or activation mechanism at predetermined pressures.
Industry:Oil & gas
A settling tank used for treating oil. Oil and brine are separated only by gravity segregation forces. The clean oil floats to the top and brine is removed from the bottom of the tank. Gun barrels are found predominantly in older or marginal fields. A gun barrel is also called a wash tank.
Industry:Oil & gas
A set of characteristics that several rocks have in common. The characteristics of interest are usually those pertaining to fluid movement and fluid storage capacity.
Industry:Oil & gas
A series of techniques that use geostatistical methods to determine fluid and contaminant flow in the subsurface. These techniques are used primarily to study contamination in groundwater in environmental studies. <br><br>Reference:<br><br>McKenna SA and Poeter EP: "Simulating Geological Uncertainty with Imprecise Data for Groundwater Flow and Advective Transport Modeling," in Yarus JM and Chambers RL (eds): 鈥淪tochastic Modeling and Geostatistics,鈥?AAPG Computer Applications in Geology, no. 3. AAPG, Tulsa, Oklahoma, USA, 1994.
Industry:Oil & gas
A section of manifold containing the valves and piping necessary to bleed off pressure from a vessel or system. Bleedoff lines may be exposed to widely fluctuating pressures. They must be adequately secured, and consideration must be given to safe handling or disposal of the resulting fluids.
Industry:Oil & gas
A section on a log print that gives the scales of the curves displayed and the depth scale. There usually is an insert at the beginning and end of each interval surveyed.
Industry:Oil & gas
A series of multilateral well segments that trunk off a main horizontal well. The appearance closely resembles the ribs of a fish skeleton trunking off the main backbone.
Industry:Oil & gas
A section of liner that is run from a liner hanger back to the wellhead after the initial liner and hanger system have been installed and cemented. A tie-back liner may be required to provide the necessary pressure capacity during a flow-test period or for special treatments, and is typically not cemented in place. In some cases, a tie-back liner will be installed as a remedial treatment when the integrity of the intermediate casing string is in doubt.
Industry:Oil & gas
