دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a method of stimulating production by opening new flow channels in the rock surrounding a production well. Often called a frac job. Under extremely high hydraulic pressure, a fluid (such as distillate, diesel fuel, crude oil, dilute hydrochloric acid. water, or kerosene) is pumped downward through production tubing or drill pipe and forced out below a packer or between two packers. The pressure causes cracks to open in the formation, and die fluid penetrates the formation through the cracks. Sand grains, aluminum pellets, walnut shells. or similar materials (propping agents) are carried in suspension by die fluid into the cracks. When die pressure is released at the surface, the fracturing fluid returns to the well. The cracks partially close on the pellets. leaving channels for oil to flow around them to the well. See explosive fracturing, hydraulic fracturing.

n: a way that increase the production of crude oil by increase layer permeability.

n: a fluid used in the fracturing process (i.e., a method of stimulating production by opening new flow channels in the rock surrounding a production well). Under extremely high hydraulic pressure, frac fluids (such as distillate, diesel fuel, crude oil, dilute hydrochloric acid, water, or kerosene) are pumped downward through production tubing or drill pipe and forced out below a packer or between two packers. The pressure causes cracks to open in the formation, and the fluid penetrates the formation through the cracks. Sand grains, aluminum pellets, walnut shells, or similar materials (propping agents) are carried in suspension by the fluid into the cracks. When the pressure is released at the surface, the fracturing fluid returns to the well but leaves behind the propping agents to hold open the formation cracks.

the fluid used in a fracturing treatment, may include pre and post treatment fluids.

n: small-diameter tubing that is used inside production tubing for continuous injection of specialised fluids such as corrosion inhibitors or kill fluids. Sometimes used to refer to the drill string through which kill fluids are circulated in drilling.

n: the volume of pipeline or casing string that drops into the holebore when kill a well.

n: (POI) an interval in the production tubing string where heavy paraffin hydrocarbons are deposited on the inside walls of the tubing. Below or above certain temperatures, depending on the characteristics of the paraffins, paraffin will not form.

n: any packer designed to make a seal between the tubing and the casing during production.

n: A device used to isolate the annulus and anchor or secure the bottom of the production tubing string. A range of production packer designs is available to suit the wellbore geometry and production characteristics of the reservoir fluids.

any packer that forms a seal between tubing and annulus during production.

n: a string of tubing used to produce the well, providing well control and energy conservation.

n: A wellbore tubular used to produce reservoir fluids. Production tubing is assembled with other completion components to make up the production string. The production tubing selected for any completion should be compatible with the wellbore geometry, reser

the primary flow path from the pay to the surface.

n: a sealing member placed in the production tubing that is landed (placed) inside the packers seal bore.

a small diameter tubing string, often coiled tubing that is suspended inside the existing production tubing. By occupying part of the flow path space, the velocity of the produced fluid is increased and the potential to lift water from the well is increas

n: The surface termination of a wellbore that incorporates facilities for installing casing hangers during the well construction phase. The wellhead also incorporates a means of hanging the production tubing and installing the Christmas tree and surface flow