874 results about "Production area" patented technology

The present invention is directed to a degradable wrap and method for temporarily maintaining a downhole foam element in a compressed state. The degradable wrap is fitted around the foam element and temporarily maintains the foam element in a compressed state against an outer surface of a downhole sand control device. It is provided to keep the foam element in the compressed state while a production assembly comprising the downhole sand control device and foam element mounted thereon is placed downhole in a well bore adjacent to a production zone. The degradable wrap is permeable to the production fluid and degrades over time. Once the degradable wrap has degraded the foam element fills the annulus between the production screen and casing string or well bore wall. The foam element acts to inhibit the flow of water along the annulus and is useful in zone isolation.

The invention provides an electrical equipment state maintenance system. The electrical equipment state maintenance system comprises an operation and maintenance base layer platform, a state monitoring module, a state evaluation module, a risk assessment module, a fault diagnosis module and a maintenance strategy module, wherein production area I data of a power grid system and production area III data of the power grid system are integrated on the operation and maintenance base layer platform, the state monitoring module is used for collecting on-line monitoring data of electrical equipment and operating environment information of the electrical equipment through the operation and maintenance base layer platform, the state evaluation module is used for evaluating the on-line monitoring data according to state evaluation standards of the electrical equipment to acquire an electrical equipment health state represented by the on-line monitoring data, the risk assessment module is used for calculating the risk index of the electrical equipment according to risk assessment standards of the electrical equipment, the fault diagnosis module is used for diagnosing faults of the electrical equipment and generating a fault diagnosis report according to the health state and the risk index of the electrical equipment, and the maintenance strategy module is used for generating maintenance strategy information of the electrical equipment according to the health state, the risk index and the fault diagnosis report of the electrical equipment. By means of the electrical equipment state maintenance system, evaluation, assessment and predication are automatically carried out on the power grid system, and therefore the automation level and the intelligentization level of the power grid system are improved.

A system and method for managing a production from a wellbore that includes taking measurements relating to one or more selected parameters for each of the production zones over a time period and determining the occurrence of the cross flow in the wellbore using a trend of the one or more of the measurements. The system includes a processor that receives information relating to the measurements made over time relating to the selected parameters, wherein the processor determines or predicts the occurrence of the cross flow from a trend of at least one of the measurements.

The present invention relates to systems and methods of intelligently extracting heat from geothermal reservoirs. One geothermal well system includes at least one injection well extending to a subterranean formation and configured to inject a working fluid into the subterranean formation to generate a heated working fluid. At least one production well extends to the subterranean formation and produces the heated working fluid from the subterranean formation. A production zone defines a plurality of production sub-zones within the subterranean formation and provides fluid communication between the at least one injection well and the at least one production well. Each production sub-zone is selectively accessed in order to extract heated working fluid therefrom and thereby provide a steady supply of heated working fluid to the surface.

An array of fiber optic acoustic sensors is formed within an optical fiber. The array of acoustic sensors may be deployed to a well bore for detecting acoustic signals occurring within the production area of the well bore, such as acoustic signals resulting from sand invading the well bore. A plurality of acoustic sensors may be formed by forming a plurality of periodic refractive index perturbations at selected intervals within the acoustic sensing section of the optical fiber. The optical fiber may be deployed within the well head within a suitable protective arrangement such as deployed through a tube or armor using a suitable material such that the optical fiber is protected, yet retains sensitivity to acoustic signals. The fiber optic acoustic sensor of the present invention may be unobtrusively mounted on the exterior of a well casing such that the sensor is not in the fluid stream.

Various embodiments of the present invention disclose enhanced and improved well production tools for increasing the stability of production zones in a wellbore. Various embodiments of the present invention generally relate to apparatuses, systems, and processes for efficiently and effectively isolating zones within a wellbore.

Method and apparatus for producing multiple zones from a single wellbore wherein a hollow whipstock is used to complete a lateral into an upper zone which lies above a lower producing zone. The whipstock has openings through its tapered face which, in turn, are sealed by dissolvable plugs (e.g. aluminum). Once the lateral has been completed, a reagent (e.g. hydrochloric acid) is pumped down the wellbore to dissolve the plugs and open the openings through the face of the whipstock thereby allowing the flow from the lower zone to pass through the whipstock to be produced up through the wellbore along with the flow from the upper production zone.

A method for determining the extent of recovery of materials injected or otherwise introduced into oil wells or subsurface formations is practiced using a portable device. The portable device can also be used to determiner the occurrence of a predetermined condition in an oil well such as water break through in a production zone, or the opening or closing of a sliding sleeve. When, for example, water breakthrough is detected, the zone producing too much water can be plugged, using, for example, a flow-through bridge plug, if there are other producing zones further downhole. The portable device may be use to make quantitative measurements or it may be used to do pre-screening of samples thereby avoiding further testing of negative samples.

A system and method for completing a well with multiple zones of production is provided. For example, a well completion system is provided including one or more polished bore receptacles installed in a casing and a fluid delivery device having at least one seal assembly for selectively isolating a selected well zone and delivering a fluid to the selected zone. Furthermore, a perforating gun may be connected to the fluid delivery device to facilitate perforating a target well zone, isolating the target well zone, and treating the target well zone in a single trip.

A safety valve (100) replaces an existing safety valve (102) in order to isolate a production zone from a tubing string when closed. Preferably the safety valve (100) includes a flow interruption device (106) displaced by an operating conduit extending from a surface location to the safety valve (100) through the inside of the production tubing. A by-pass conduit (150) allows communication from a surface location to the production zone through the safety valve (100) without affecting the operation of the safety valve (100).

The invention provides a real-time issuing method and a real-time issuing system of a safe and economic operation state of a thermal power plant. The method comprises the following steps: building a real-time communication protocol among SIS, MIS, a video monitoring system and 3D-GIS; building a three-dimensional model indicating a production area view of the thermal power plant by utilizing a 3D-GIS technology to ensure that the three-dimensional model corresponds to equipment, heat distribution pipelines, valves and the like in a real production environment; processing data, video pictures, expert knowledge bases and the like pushed by the SIS, 3D-GIS and the video monitoring system by a GIS server and integrating to three-dimensional model corresponding positions; supplying the safe and economic operation state and fault solution strategies of location point equipment or systems. According to the real-time issuing method and the real-time issuing system, the complete coverage of the safe and economic operation state monitoring requirements and fault solution strategies of the unit are achieved, so that the occurrence of major accidents caused by ignorance of data abnormity due to human factors can be greatly reduced, and the safe and economic operation and the management level of the thermal power plant are effectively improved.

The application discloses a valve, which may include either a safety valve or a storm surge choke valve or the like, to isolate a zone below a valve from a string of production tubing. Preferably, the valve includes a flow interruption surface assembly, such as a flapper valve or a ball valve, displaced by an operating conduit extending from a surface location to the valve through the inside of the production tubing. The application also discloses a bypass-conduit inside the production tubing to allow communication from a surface location to the production zone when the valve is in either an open or a closed location.

The invention relates to an artificial mass propagation method of harmonia axyridis. Two facilities of a seedling raising greenhouse and an insectary are adopted, broad beans are used as host plants for propagating pea aphids which are used as aphids for feeding the harmonia axyridis, and the harmonia axyridis which is used for agricultural control over the aphids can be manually propagated in a large quantity through specific technical measures of broad bean plant breeding, pea aphid inoculation and propagation, artificial breeding of the harmonia axyridis and the like. Healthy broad bean sprouts are bred with broad bean seeds, the pea aphids are inoculated with the broad bean sprouts and propagated, then the pea aphids are collected to feed larvas and adults of the harmonia axyridis, and a large quantity of the larvas and the adults of the harmonia axyridis are propagated to be released in agricultural production areas to control the aphids of all kinds, so that the biological control over the aphids is realized, and the pollution and safety problems caused by chemical control is avoided or reduced.

Apparatuses and methods to inject chemical stimulants (284) to a production zone (102, 202) through a string of production tubing (110, 210) around a downhole obstruction are disclosed. The apparatuses and methods include deploying an anchor seal assembly (200) to a landing profile (120, 220) located within a string of production tubing (110, 210). The anchor seal assembly (200) is in communication with a surface station through an injection conduit (260, 264) and includes a bypass pathway (262) to inject various fluids to a zone below.

Embodiments of the present invention help in the processing and interpretation of seismic survey data, by correlating or otherwise comparing or associating seismic data obtained from a seismic survey with flow information obtained from a well or borehole in the surveyed area. In particular, embodiments of the present invention allow for flow data representing a flow profile along a well that is being monitored by a distributed acoustic sensor to be determined, such that regions of higher flow in the well can be determined. For example, in the production zone the well will be perforated to allow oil to enter the well, but it has not previously been possible to determine accurately where in the production zone the oil is entering the well. However, by determining a flow rate profile along the well using the i)AS then this provides information as to where in the perforated production zone oil is entering the well, and hence the location of oil bearing sands. This location can then be combined or otherwise correlated, used, or associated with petroleum reservoir location information obtained from the seismic survey, to improve the confidence and / or accuracy in the determined petroleum reservoir location.

A system for the variable rate application of pesticides is provides, comprising a) a vehicle capable of traversing an agricultural production area; b) at least one sensor for attachment to said vehicle for direct sensing plant and / or condition data on said agricultural production area, said sensor being capable of transmitting said directly sensed data to computing means; c) computing means for processing the data output of said sensor; d) at least one tank mounted on or attached to said vehicle carrying pesticidal formulations; e) pesticide delivery means mounted on or attached to said vehicle capable of receiving delivery instructions from said computing means and of delivering pesticides from said tank in compliance with said instructions; characterized in that f) said computing means is capable of reading and processing data from a computer-readable medium having stored thereon a plurality of data, said plurality of data including data relating to the functional relationship between the amounts of individual pesticides and the biological effects achievable with said amounts on the plants or their environment, optionally under consideration of the soil conditions and climatic conditions.

Partitioning devices that may be secured and sealed within a heart chamber for separating a patient's heart chamber into a productive portion and a non-productive portion are described herein. The partitioning devices described herein may include a reinforced membrane with outwardly biased members. The reinforced membrane may have a central hub with a distally extending support stem with a plurality of feet which extend radially from a centerline axis and preferably have ends that are aligned in a common plane. These devices may be secured within the heart chamber by sealing them to the wall of the heart chamber, for example, by inflating an inflatable element on the periphery of the device. The non-productive portion may be filled with a material, including occlusive materials. Sealing and / or filling the non-productive portion formed by the devices described herein may help prevent leakage from the non-productive region. Also described herein are systems including these devices and methods of using them, which may be suitable for treating patients with heart disease, particularly congestive heart failure.

An electro acoustic device and related method for increasing production capacity of wells that contain oil, gas and / or water is disclosed. The electro acoustic device produces vibrations stimulating occurrence of mass transfer processes within the well. The resultant acoustic flow generated in porous media, produced by superposition of longitudinal and shear waves, is developed over a characteristic frequency threshold value specific to water, normal oil and heavy oil, with an acoustic energy density capable of establishing higher fluidity zones in the porous media, promoting mobility and recovery of desired fluid and formation damage reduction in a wellbore. The down hole electro acoustic device is a submerged unit placed in the well producing zone, and consists of an electric generator, one or more electro acoustic transducers, and one or more waveguide systems (sonotrodes) that include tubular type radiators which provide transmission of elastic vibrations into the medium under treatment.

Multiple formations are isolated in the wellbore and fractured and gravel packed together. The bottom hole assembly can have a series of screens that are separated with packers in between and above and below the screen stack. The assembly is positioned where needed in the borehole and the topmost and lowermost packers (if used) are set. The bottom of the interval can alternatively be the hole bottom. With multiple intervals isolated a fracturing operation can take place for the entire isolated interval that can encompass multiple producing zones. The interval can also be gravel packed in a single operation. After the gravel pack of the interval, packers that are on the bottom hole assembly between screens that are aligned with perforations for different zones can be set into the gravel pack and get an effective seal against the casing to isolate the various producing zones from each other.

The application discloses a valve, which may include either a safety valve or a storm surge choke valve or the like, to isolate a zone below a valve from a string of production tubing. Preferably, the valve includes a flow interruption surface assembly, such as a flapper valve or a ball valve, displaced by an operating conduit extending from a surface location to the valve through the inside of the production tubing. The application also discloses a bypass-conduit inside the production tubing to allow communication from a surface location to the production zone when the valve is in either an open or a closed location.

The invention relates to a disease-preventing type special controlled-release fertilizer for Shandong peanuts as well as a preparation method and application thereof. The disease-preventing type controlled-release fertilizer is prepared from the following raw materials: humic acid coated urea, humic acid coated calcium chloride, sulfur-polymer coated urea, diammonium phosphate, granular potassium chloride, zinc sulfate, boric acid, thiodiazole-copper preparation, carbendazim preparation and fenamiphos granular formulation. The release and proportioning of nutrients in the controlled-release special fertilizer for Shandong peanuts are suitable for nutrient conditions and peanut absorption requirements of soil in main peanut production areas in Shandong, and simultaneously, medicaments for preventing and controlling main diseases such as peanut stem rot, root rot, bacterial wilt, root-knot nematode and the like are added. When peanuts are seeded, the disease-preventing type special controlled-release fertilizer for Shandong peanuts is applied for one time, so that labor and time are saved, and disease-preventing and yield-increasing effects are good.

The invention discloses heat-immersed zinc depositing manufacturing method and manufacturing line of large-scale of working piece, which comprises the following steps: degreasing; pickling; derusting; assisting the depositing; drying; proceeding heat immersing the deposited zinc; cooling; passivating. The manufacturing line contains pickling area and zinc depositing area between raw material area and production area, wherein the pickling area concludes degreasing groove, clear water groove of pickling area and pickling groove; the zinc deposited area is composed of a row of clear water groove of zinc depositing area, depositing assisting groove, drying box, zinc depositing stove, cooling groove and passive groove. The invention can finish large scale of zinc depositing work with rational structure layout, which improves manufacturing efficiency.

The invention discloses saccharomyces cerevisiae and the application thereof in wine brewing. The saccharomyces cerevisiae is saccharomyces cerevisiae NJZCC17 CGMCC No. 3284. The saccharomyces cerevisiae NJZCC17 is used to brew wine. Compared with the widely used reference commercial saccharomyces cerevisiae strain, the sugar content in the wine prepared by the saccharomyces cerevisiae is 1 to 4 percent, the alcohol content thereof is 9 to 14 percent and the glycerol yield thereof is 4 to 11g / L, the yield of hydrogen sulfide, acetaldehyde, acetic acid, urea and other metabolites which are bad for the flavor or the quality of the wine is lower, the malic acid utilization rate is higher, the volatile aroma components are balanced, the total ester yield is higher and the total high-grade alcohol yield is appropriate, the taste is more complicated and the brewing time is shortened; and therefore, the invention displays important roles in stabilizing and improving the quality of the domestic dry red wine, and displaying the brewing potential of cabernet sauvignon and other red wine in Hebei Changli production area.

A safety valve (100) replaces an existing safety valve (102) in order to isolate a production zone from a tubing string when closed. Preferably the safety valve (100) includes a flow interruption device (106) displaced by an operating conduit extending from a surface location to the safety valve (100) through the inside of the production tubing. A by-pass conduit (150) allows communication from a surface location to the production zone through the safety valve (100) without affecting the operation of the safety valve (100).

The invention discloses a tobacco curing barn taking an air source heat pump as a heat source, which comprises a heating chamber with a fresh air opening, and a drying chamber with temperature and humidity probes. A dehumidifying opening is reserved above the curing barn. The tobacco curing barn further comprises the air source heat pump and a condenser fan. The ratio of the heat exchange area ofa condenser to the input power of a compressor is numerically 7 to 12 m<2> / kw. The condenser and the suction type air supply fan thereof are arranged in the heating chamber. The drying chamber and / orthe heating chamber are / is provided with a heat preservation layer. By taking the air source heat pump and solar energy as the novel heat sources, the tobacco curing barn of the invention has the characteristics of energy saving, normal and stable running of a system, high energy efficiency ratio, convenient operation, capability of providing hot air at relatively higher temperature and greatly expanding the application range of the air source heat pump and the solar energy, and positive role in saving energy sources and protecting the environment. Due to the large-scale popularization and utilization of the technology in tobacco production areas, the sulfur content of the air, soil and tobacco can be reduced and the quality of the tobacco can be improved.