40 results about "Effective potential" patented technology

Airbag coating compositions comprising at least two separate and distinct layers are provided. The first layer (base coat), being in contact with the airbag surface, comprises a composition of at least one coating material which may comprise up to 30% by parts of the total amount of material in the first layer of a silicone resin which provides desirable adhesion, desirable tensile strength, and overall lower cost than standard silicone airbag coating materials. The second layer, being a coating for the first layer, provides reinforcement and blocking characteristics to permit effective potential long-term storage and optimum use upon the occurrence of a collision. An airbag fabric coated with this two-layer system is also contemplated within this disclosure.

The invention belongs to the field of geophysical exploration, and is a natural potential continuous profile exploration method. The invention arranges a plurality of electrical sensors on each survey point in an arrangement, first measures the grounding resistance Ri between adjacent survey points, and then uses A survey point is used as a reference point, and the potential difference between each survey point relative to the reference point is repeatedly measured, and then the next arrangement is laid out, and the survey points at the ends of the two arrangements coincide, and the grounding resistance and potential between the survey points of the arrangement are measured. By analogy; finally, denoise and superimpose the obtained potential difference to obtain the effective potential difference ΔUi′, and then according to ΔUi=Ki*ΔUi′, Ki=(R1+R2+…+Rn-1) / [(n-1 )*Ri], the corrected natural potential difference ΔUi is obtained, and after ring adjustment, the required natural electric field information is obtained. The invention can be used to detect the natural potential generated by oil and gas hydrocarbons, and then evaluate the oil and gas of traps.

The invention discloses a piezoelectric plate and a vibration energy collector. The vibration energy collector comprises the piezoelectric plate, a base and a mass block, wherein the base is used for fixing the piezoelectric plate, and the mass block is arranged at the free end of the piezoelectric plate. The piezoelectric plate comprises a piezoelectric plate body, an upper surface electrode, a lower surface electrode and two side surface electrodes, wherein the upper surface of the piezoelectric plate is coated by the upper surface electrode, the lower surface of the piezoelectric plate is coated by the lower surface electrode, the two side surfaces of the piezoelectric plate are coated by the two side surface electrodes respectively, the two side surface electrodes are perpendicular to the upper surface electrode and the lower surface electrode and are not communicated with the upper surface electrode and the lower surface electrode, and a conductive wire is led out of each electrode of the piezoelectric plate to serve as an output port. According to the collector, low-frequency vibration in the environment where the collector is located drives the base to vibrate to enable the piezoelectric plate to produce bending deformation. Meanwhile, deformation between the vertical electrodes is produced by means of the Poisson effect, restraining of a strain neutral surface is avoided, effective potential is produced among different electrodes of the piezoelectric plate, and therefore the piezoelectric plate outputs energy more effectively, and energy output efficiency is improved. Meanwhile, the collector can provide a plurality of output modes.

The invention provides a method of increasing recovery through ultra-high water cut stage fault block oil reservoir zoning regulation and control. The method of increasing recovery through ultra-high water cut stage fault block oil reservoir zoning regulation and control includes the steps that 1, zone structural geology features and well pattern evolution features are analyzed and researched; 2, reasonable zoning research is carried out through complex remaining oil features and influence factors, typical fault block oil reservoir plane water flooding effect difference and influence factors are analyzed, and an ultra-high water cut stage fault block oil reservoir zoning scheme is formulated comprehensively; 3, a numerical simulation means or oil reservoir engineering method is adopted, development contradictions of all zones are determined, zoning regulation and control technological policy optimization is carried out, and zoning injection and production regulation and control scheme is executed to optimize the design. The method of increasing recovery through ultra-high water cut stage fault block oil reservoir zoning regulation and control is clear in technical idea and simple in application, and a feasible method is provided for effective potential digging of ultra-high water cut stage complex fault block remaining oil in the later stage of production.