Sentence examples for circulation density from inspiring English sources

Results verified that equivalent circulation density profiles, and minimum and maximum flow rates during placement should be determined prior cementing operations to avoid influx or fracturing in pre-cased observation wells.

However, due to the narrow mud weight window in most high-pressure sour gas well, this method could not keep both equivalent static density and equivalent circulation density within the safe window.

The plot of equivalent circulation density versus depth suggests that well can be drilled with two casing policy.

The literature shows that DF properties (plastic viscosity (PV), yield point (YP), and gel strength (GS)) affect the rate of penetration (ROP) drastically because the presence of unremoved drill solids can cause a phenomenon known as the chip hold down effect, which increases both the equivalent circulation density (ECD) and the differential pressure causing a decrease in the ROP.

Excessive torque/drag, upright equivalent circulation densities, hindering drillpipe sliding which results in limiting the lateral reach of the well, lost circulation, barite sag, inefficient hole cleaning and frequent sticking are some of the engineering problems encountered while drilling horizontally.

During circulation, the equivalent circulating density is used to determine the bottom-hole pressure conditions.

The results of simulation also indicate that during circulation, a higher equivalent circulating density is expected as compared to the case of constant fluid density.

Estimated from their frequency of appearance and the velocity of circulation, the volume density of this round and bright THG-contrasted cells agrees with that of white blood cell counts for human under normal physiological conditions.

The model takes into account, exponential dependence of the specific reaction rate on temperature, as well as reflects the influence of the real and bulk catalyst densities, circulation rate, equilibrium and fresh catalyst's activities, reactor pressure, feed rate and unit construction.

Alternatively, if mature gametocytes remain in circulation sufficiently long, circulating gametocyte densities may be superpositions of two cohorts that committed 2 and 3 days previously.

Changes in bone density and circulation caused by Mars's gravity as well as the technical challenges involved in re-entering the Earth's atmosphere make a return seem unlikely.