دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a device that, when installed in a pipe or flow channel and actuated by automatic control equipment. enables a representative sample to be obtained of the fluid flowing therein. systematic basis, which can be tested to determine the quality of the liquid flowing in the line. An automatic sampling device consists of a probe inserted into the line, an extractor, a timer or other device that controls the sampling rate, and a small tank (sample receiver) that holds the samples.

n: a device used in most net-oil computers that senses the different dielectric constants of oil and water in a water-oil emulsion. See dielectric constant.

a device with a chilled probe that measures the temperature at which paraffin will precipitate of an oil solution.

n: A kind of logging method by recording density of formation. It is different from density logging because it has two probes and can reflect more phenomenon about cake and irregularity of borehole face.

n: a device mounted near the drawworks drum to keep the driller from inadvertently raising the travelling block into the crown block. A probe senses when too much line has been pulled onto the drum, indicating that the travel block is about to strike the crown. The probe activates a switch that simultaneously disconnects the drawworks from its power source and engages the drawworks brake.

a device that keeps the traveling block from being raised ito the crown block.

n: a kind of tool used to receive the information from downhole and transtorm the information to the appliance or transform it to the receiving apparatus on the ground

n: the well bore which has been drilled and probed

n: the tools which is lowed into the non-magnetic drill collar by conductor line and used to receive and transmit the directional data

n: the sack borer which has to be transport by air when drill and probe in the swap or torrent tract

n: in sampling petroleum and petroleum products, a small sample, usually 1.5 millilitres (0.05 ounce),obtained by the probe and sampler in an automatic sampling system. Several grabs constitute a sample. graben n: a block of the earths crust that has slid downward between two faults. Compare horst.