摘要:
A module gathers information about water quality indicators in the air above water in a water well and in the ambient air outside the water well. The module sends the information to a database. A detector tracks the substances present inside and outside the well and how it changes over time.
摘要:
A completion assembly for subterranean use from a surface in multiple zones that are gravel packed together has a plurality of screens spaced apart with tubulars that define an annulus around them in the subterranean location for receipt of gravel in the annulus. The annulus spans multiple zones and the annulus is isolated from the surface by at least one packer. At least one barrier forming chemical is delivered from the tubulars into the annulus that has been gravel packed. The barrier chemical forms a barrier with the gravel in the annulus between at least two zones. The tubulars comprise at least one opening located between zones. A straddle tool is insertable from the surface into said tubulars to isolate the opening for chemical delivery into the annulus.
摘要:
An aquifer recharge valve assembly comprises a valve movable along the interior of a pipe section to open and close aquifer recharge openings through the pipe section. The position of the valve controls the extent to which the recharge openings are available for delivery of recharge water into the aquifer. The valve may be a seamless resilient cylinder which expands due to well head pressure to assist in sealing the recharge openings when the valve is closed.
摘要:
The present invention relates to a device for creating a reaction zone in an aquifer, for circulating and purifying ground and raw water, in particular for tap water use, which aquifer comprises satellite wells and at least one extraction well wherein each satellite well comprises at least two, essentially vertical water conducting sections separated from each other in substantially vertical longitudinal direction, and having at least two geohydrologic zones, whereby said zones are arranged to alternating emit water to the surrounding, and receive water coming from the outside surrounding, respectively, whereby adjacent wells are arranged for opposite flows so that substantially horizontal flows are obtained in a water leading layer, in which layer the wells have been placed between adjacent wells, and whereby the water of at least one section is arranged to be pumped in one direction from below and upward, and at least in one vertical section, form above and downward, respectively, and to be lead out through at least one second section, and whereby the flow is obtained by lifting device arranged in the bottom part of the respective section, as well as a method for purification of ground or raw water in an aquifer by means of a number of satellite wells and at least one extraction well.
摘要:
A method of improving the quality of liquid coming from a well that has a pump and pipe assembly. The method includes identifying a region of the well that is low in contamination and a region of the well that is high in contamination, and modifying the pump and pipe assembly so that suction of the assembly is enhanced in the region that is low in contamination and inhibited in the region that is high in contamination. Modifying the pump and pipe assembly can include coupling a suction control device to the pump and pipe assembly, and positioning the suction control device in the region of low contamination. In addition, modifying the assembly can include positioning a flow control disk in a location that is substantially between the region of low concentration and the region of high concentration.
摘要:
A method of improving the quality of liquid coming from a well that has a pump and pipe assembly. The method includes identifying a region of the well that is low in contamination and a region of the well that is high in contamination, and modifying the pump and pipe assembly so that suction of the assembly is enhanced in the region that is low in contamination and inhibited in the region that is high in contamination. The method also includes cleaning the well in the region of low contamination. Modifying the pump and pipe assembly includes coupling a suction control device to the pump and pipe assembly, and positioning the suction control device in the region of low contamination, and forming a barrier between the region of low contamination and the region of high contamination by attaching a flow control disk to the pump and pipe assembly.
摘要:
A method of improving the quality of liquid coming from a well that has a pump and pipe assembly. The method includes identifying a region of the well that is low in contamination and a region of the well that is high in contamination, and modifying the pump and pipe assembly so that suction of the assembly is enhanced in the region that is low in contamination and inhibited in the region that is high in contamination. The method also includes cleaning the well in the region of low contamination. Modifying the pump and pipe assembly includes coupling a suction control device to the pump and pipe assembly, and positioning the suction control device in the region of low contamination, and forming a barrier between the region of low contamination and the region of high contamination by attaching a flow control disk to the pump and pipe assembly.
摘要:
The invention refers to a device for creating in an aquifer an oxidation and precipitation zone or a reduction zone between a number of injection wells arranged around one or more extraction wells for purified water, said injection wells each comprising an outer water-pervious tube (1). For preventing such a device from being clogged the invention suggests that at the upper end of the outer tube (1) is mounted a circulation vessel (2) from which extends downwardly within the outer tube (1) a first conduit (3), ending at the height of the upper portion of the aquifer and provided with a pressure inlet means (5) so as to form an upper ejector, and a second conduit (4), which at its lower end supports an externally sealingly mounted balloon body (7), which is inflatable into sealing engagement with the inner surface of the outer tube (1), said second conduit closely above said body carrying a pressure inlet means (6), so as to form a second ejector.
摘要:
This invention relates to a method for stabilizing and maintaining water wells penetrating a subterranean formation for the production of water which comprises adding to the wells at least one anionic polymeric sequesterant derived from a carboxylic acid and then subsequently treating the well water with a small but effective amount of at least one biocide.
摘要:
A module gathers information about water quality indicators in the air above water in a water well and in the ambient air outside the water well. The module sends the information to a database. A detector tracks the substances present inside and outside the well and how it changes over time.