(in the oil industry) used, occurring, or performed in a well or borehole.
（石油工业）在油井（或钻孔）中使用（或发生、进行）的
Example sentencesExamples
Method for downhole separation of natural gas from brine with injection of spent brine into a disposal formation
For the core data, the most pertinent problem is the inaccurate downhole location of core pieces.
As with K60, the semi-variogram of the cross-hair samples is essentially flat over all lags - and here we note an excellent correspondence with the level of incoherent variability exhibited downhole.
Method and apparatus for navigational drilling with a downhole motor employing independent drill string and bottomhole assembly rotary orientation and rotation
For example, Wood Group Production Technology is the world leader in permanent downhole instrumentation (ahead of Schlumberger) and has recently installed the first fibre - optic downhole system in the world.
A method of determining the real time bubble point pressure of a fluid originating from a subsurface earth formation using an adjustable choke positioned downhole adjacent to the formation.
This depth scale allowed alignment of the carbonate, TOC and core MS records from the slightly expanded cores with the downhole records.
In a formation integrity test, pumping stops when the downhole pressure reaches the value of the hydrostatic head for the mud density that the drillers plan to use for the next section of the well.
Due to confined space in the downhole tool environment and the fact that the transmit path utilizes significantly more electrical power than the receive path, electromagnetic noise easily couples between adjacent circuitry.
The Cathcart-based company has successfully completed a prototype of the world's first downhole gravity separation system and is now receiving funding from the Norwegian government for a full-scale demonstration.
Equipment maker Smith International Inc. has announced a 3% to 5% hike for such gear as drill fluids, bits, and downhole drilling tools.
Maximum palaeotemperatures increase downhole, from 65-85 deg C in sample GC237-27 to > 100 deg C in sample GC237-30.
It is not merely a diversion, but a diversion down a more complicated route, since it means adding an extra component and finding a way of doing so that is robust-enough to withstand the rigours of a downhole environment.
The geologist thus turns to downhole geophysical logging to provide the data in addition to cuttings samples that are required for sequence-stratigraphical studies.
Core data derived from ocean drilling may be supplemented by downhole logging data, which provides a near continuous record of the physical and/or chemical properties of the rock surrounding the borehole walls.
In one aspect, the apparatus is run into the well on wireline which is capable of bearing the weight of the apparatus while supplying a source of electrical power to at least one downhole motor which operates at least one hydraulic pump.
This unit is extraordinarily rich in organic carbon (> 50 wt% TOC in some parts, Huc et al. 1992; Herbin et al. 1995) and readily recognizable in the field and in downhole logs.
Absolute orientation and downhole location of pieces of basement core can be achieved by cross-correlation of structural features on the FMS logs and core images.
An Internal Bottom Hole Assembly for a Coiled Tubing enables the CT to be used with other devices downhole.
About 500 m of this broken pipe were recovered by fishing operations, leaving only 600 m of open hole available for downhole logging.