verb (used with object), o·ver·pres·sured, o·ver·pres·sur·ing. to cause or expose to overpressure. to make undue demands on by a regimen, work load, etc.: students overpressured with heavy academic schedules.

What does overpressure mean?

: pressure significantly above what is usual or normal.

What is overpressure used for?

Overpressure is a type of pressure brought about by shockwaves more powerful than average atmospheric pressure. ... Overpressure can be used in the measurement of the effects of thermobaric bombs and nuclear weapons.

What is an overpressure event?

Overpressure, also called a blast wave, refers to the sudden onset of a pressure wave after an explosion. Additionally, these waves can damage buildings or even knock them flat—often injuring or killing the people inside them. ...

What is an overpressure wave?

Overpressure (or blast overpressure) is the pressure caused by a shock wave over and above normal atmospheric pressure. The shock wave may be caused by sonic boom or by explosion, and the resulting overpressure receives particular attention when measuring the effects of nuclear weapons or thermobaric bombs.

What is the meaning of the word OVERPRESSURE?

18 related questions found

What is overpressure reservoir?

1. n. [Geology] Subsurface pressure that is abnormally high, exceeding hydrostatic pressure at a given depth.

What is overpressure in a tank?

Overpressure refers to the maximum pressure value a transducer can withstand without affecting performance; it can also refer to a situation where the pressure value exceeds the limits. ... 0-150 PSI device would mean an overpressure of 225 PSI.

What is an overpressure zone?

8.5 Geophysical Prediction of Overpressured Zones

Overpressure or geopressure is a drilling hazard that is responsible for many well blowouts. These occur when the pore fluid pressure significantly exceeds that predicted from the normal compaction of sediments with depth.

What is underpressure and overpressure?

As nouns the difference between underpressure and overpressure. is that underpressure is insufficient pressure; a marked drop in pressure while overpressure is excess or markedly elevated pressure, especially a transient high pressure due to a shock wave.

Is overpressure a hazard?

11.1.

Overpressure can lead directly to all three hazards. It can lead directly and immediately to injury; it can lead to fire/explosion if there is an ignition source; and it can lead to pollution if there is insufficient containment.

What is overpressure physiotherapy?

Overpressure: the additional movement in a joint beyond the normal range that is applied by the therapist during assessment. ... It can be passive (i.e. no effort from the patient required as the therapist moves the joint) or active (the patient does all the work). The opposite is accessory movement.

What overpressure lethal?

The extent of damage from the blast wave mainly depends on five factors: (1) the peak of the initial positive-pressure wave (an overpressure of 690–1,724 kPa, for example, 100–250 psi, is considered potentially lethal) (Champion et al., 2009); (2) the duration of overpressure; (3) the medium of explosion; (4) the ...

How do you calculate overpressure?

In practical applications, the overpressure peak of Equation (2) is usually expressed in the following form,(5) p m = s 1 R g + s 2 R g 2 + s 3 R g 3 where R_g is the scaled-distance between the point and the detonation point.

What is overpressure War Thunder?

Overpressure. In Update "Ixwa Strike", the "overpressure" mechanic was introduced, replacing the hull-break mechanic. It simulates the extreme pressures formed by the shockwave of an HE-based shell explosion, and their effect on the crew inside the vehicle.

What is overpressure in a relief valve?

A relief device's overpressure is the pressure increase over its set pressure, usually expressed as a percentage of the set pressure. Pop-acting relief valves do not immediately open completely (to 100% lift). Sufficient overpressure is necessary to achieve full lift.

What is formation pressure?

Formation pressure is the pressure acting on the fluids (i.e., formation water, oil, and gas) in the pore space of the formation. Normal formation pressures in any geological setting are equal to the Hydrostatic Head (hydrostatic pressure) of water extending from the surface to the subsurface formation.

Can air pressure explode?

An explosion can be vi- sualized as a “bubble” of highly compressed air that expands until reaching equilibrium with the surrounding air. Explosive detonations create an incident blast wave, characterized by an almost instantaneous rise from atmospheric pressure to a peak overpressure.

What causes overpressure in a reservoir?

Overpressure, which may result in wellbore stability problems, could result from several causes such as mechanical effects, dynamic transfer, chemical stress, thermal stress, among others, in which undercompaction is frequently the main cause, generated when the sediment deposition velocity exceeds the fluid ejection ...

What causes overpressure geology?

Geologic overpressure in stratigraphic layers is caused by the inability of connate pore fluids to escape as the surrounding mineral matrix compacts under the lithostatic pressure caused by overlying layers.

What are the ways in which an overpressured zone can be detected while drilling?

When drilling shales, the drilling rate normally decreases with depth as the shales become more compact. If the drilling rate increases, it can be inferred that an overpressured zone is being encountered. The rate increases because bottom hole conditions change from overbalanced to underbalanced.

What is api650?

API 650 is the governing code for Welded tanks for Oil storage normally operating in the atmospheric pressure range. The code API 650 provides guidelines for design, fabrication, material, erection, and inspection of welded vertical and cylindrical storage tanks.

Do tanks explode?

Propane tanks (gas cylinders) can explode but not easily or often. It is actually really hard to have a propane tank explode.

What is Inbreathing and Outbreathing in storage tank?

Inbreathing will result from the outflow of liquid from a tank. Outbreathing will result from the inflow of liquid into a tank and from the vaporization, including flashing of the feed liquid, that will occur because of the inflow of the liquid.

What is over pressure protection?

This provides system protection and keeps the system shut down until the cause of failure is identified and corrected. During normal operation the latch mechanism holds the flapper open. The downstream pressure is monitored by the over-pressure and under-pressure controller diaphragms.