Abstract:
The portable steel-reinforced HDPE pump station (10) includes a vertically upright, cylindrical wet well (216) fabricated from steel-reinforced plastic. Pumps (18) are disposed in the wet well (216). A pipe (28) connected to the pumps (18) extends to the outside of the wet well (216) to allow outflow of water to external systems. An access hatch (22) covers the upper portion of the wet well (216) and is arranged above grade. The remainder of the wet well (216) is disposed in the ground, below grade. Vertically disposed sliding rails (218) are attached inside the wet well (216), and extend upward from a working area of the well (216) to the top of the well (216) near the access hatch (22). The pumps (18) are slidably attached to the rails (218) to facilitate sliding installation and removal of the pumps (18) by way of the access hatch (22). A water-receiving inlet pipe (11) extends into the wet well (216), the inlet pipe (11) allowing entry of water inside the well (216).
Abstract:
The invention relates to a device (1) for activating or cleaning filter pipe wells and comprises a first and a second volume body (7, 8), which each extend longitudinally relative to the longitudinal well axis (9), the outside diameters thereof being substantially adjusted to the inside diameter of the filter pipe (5), and the outer peripheral surfaces thereof being configured flexibly with respect to the longitudinal well axis (9) at least radially, such that a sealing effect is achieved between the outer peripheral surfaces of the respective volume bodies (7, 8) and the inside wall of the filter pipe (5). A removal chamber (6) is configured between the first and second volume bodies (7, 8) and the inside wall of the filter pipe (5), wherein said chamber can be hydraulically connected to a pump device and wherein the height (h) thereof is determined from the distance of the two volume bodies (7, 8) relative to each other. The longitudinal extension of the respective volume bodies (7, 8) in the direction of the longitudinal axis corresponds substantially to the height (h) of the removal chamber (6). Alternatively, the height (h) of the removal chamber (6) corresponds to less than 20% of the total length of the device (1).
Abstract:
Die Erfindung betrifft eine Vorrichtung (1) zur Aktivierung oder Reinigung von Filterrohrbrunnen und umfasst einen ersten und zweiten Volumenkörper (7, 8), die sich jeweils längs zur Brunnenlängsachse (9) erstrecken, mit ihrem Außendurchmesser im Wesentlichen an den Innendurchmesser des Filterrohrs (5) angepasst und an ihrer Außenumfangsfläche zumindest radial bezüglich zur Brunnenlängsachse (9) flexibel ausgebildet sind, so dass eine Dichtwirkung zwischen den Außenumfangsflächen der jeweiligen Volumenkörper (7, 8) und der Innenwandung des Filterrrohrs (5) erzielt wird. Zwischen dem ersten und zweiten Volumenkörper (7, 8) und der Innenwandung des Filterrohrs (5) ist ein Entnahmeraum (6) gebildet, der mit einer Pumpeinrichtung hydraulisch verbindbar ist und dessen Höhe (h) sich aus dem Abstand der beiden Volumenkörper (7, 8) zueinander bestimmt. Die Längserstreckung der jeweiligen Volumenkörper (7, 8) in Richtung der Längsachse der Vorrichtung im Wesentlichen der Höhe (h) des Entnahmeraums (6) entspricht.
Abstract:
A method for providing a barrier at a predetermined location in downhole operations comprises: providing a first tubular sleeve of a woven material comprising a plurality of fibers in a braided arrangement and including a conductor, impregnating the sleeve with a curable resin, radially enlarging the sleeve at the predetermined downhole location, and curing the resin. The present method can also be used to provide a barrier at a desired location within a wellbore while drilling, to restrict sand flow into a wellbore while allowing fluid flow into the wellbore, or to protect a metallic sand screen by employing the composite braided tubular sleeve as a protective shroud.
Abstract:
본 발명의 일 실시예에 따르면, 해수-담수 경계면을 갖는 대수층이 형성된 지반에서의 해수침투 저감을 위한 무동력의 해수양수 장치로서, 개방된 양 단부를 가지며 상기 양 단부 중 제1 단부는 바다의 해수면 아래에 위치하고 제2 단부는 지반 내 해수-담수 경계면 아래에 위치하도록 배치되는 양수 배관; 및 상기 양수 배관 중 지반에 매설된 부분인 지반 매설부의 측면을 둘러싸도록 배치되어 상기 배관의 지반 매설부를 지반으로부터 이격시키도록 구성된 관정;을 포함하고, 상기 관정은, 관정의 하단부에 관정의 둘레를 따라 형성된 다수의 관통구를 갖는 스크린을 포함하는 것을 특징으로 하는 해수양수 장치를 제공한다.
Abstract:
The claimed invention concerns a method and tools for sealing insufficiently sealed annulus between well casing and borehole in water wells by injection of Bentonite slurry through valves inserted in the well casing wall into the borehole annulus. Creating a penetration in the well casing wall carries a risk that an obstacle outside the well casing prevents valves to be inserted. By melting the valve inserts through the well casing wall and fitting them with a recess to retain the melt-out section of well casing wall, it can be ensured they can be removed and replaced by a plug by the described tools. In fig. 3b; 301b: Wings to transmit rotational force; 302b: Ball track groove to transmit axial force; 303b: Threading; 304b: Valve seat; 305b: Ball; 306b: Spring; 307b: Plate; 308b: Seeger ring; 309b: Exit hole; 310b: Melt-out retaining cavity; 311b: Blunt edge; 312b: Melt-out retaining recess; 313b: Valve insert housing.
Abstract:
Automatic submerged device for recovering supernatants comprising, within an outer enclosure (1a) provided with ports (1b) for the passage of the fluids in which the device (1) is immersed, two floats (3, 4) which can slide along a guide (5) and are adapted to operate in combination with respective sensors (3b, 4b) which are fixed to the guide (5) and are connected electrically to a panel for managing the operation of the device (1), the upper float (3) is able to float on the supernatant (2c) while the lower float (4) is unable to float on the supernatant but is able to float on water (2b), the outer enclosure (la) further comprises a pump (6) for drawing the supernatant (2c), in which the end of the suction tube (7) is open at a height comprised between the two sensors (3b, 4b) that are fixed to the guide (5) for the sliding of the floats.
Abstract:
The invention relates to an apparatus (1) for activating or cleaning filter tube wells with a filter tube (16) and comprises a first and a second volume body (12, 14), which with the outside diameters thereof are substantially adapted to the inside diameter of the filter tube (16) and on the outer circumferential surfaces thereof are designed radially flexibly with respect to the well longitudinal axis (9) such that a sealing effect is achieved between the outer circumferential surfaces of the respective volume bodies (12, 14) and the inside wall of the filter tube (16). A removal chamber (30), which can be hydraulically connected to a pump device (38), is formed between the first and second volume bodies (12, 14) and the inside wall of the filter tube (16). At least one equalizing tube (20) is provided, which completely penetrates the removal chamber (30) in the longitudinal direction (11) of the apparatus such that a hydraulic connection is established between the respective regions that adjoin the outer faces of the two volume bodies disposed opposite of the removal chamber (30).
Abstract:
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.
Abstract:
The invention relates to a method for monitoring the status of collectors in radial collector wells by measuring collector wall thickness and determining the aging condition of the collector. The essential feature of the invention is that a measurement unit is lowered in the well shaft of the radial collector well to the level of the collector, the measurement unit is introduced into the collector by remote control to perform optical data acquisition, the measurement unit is brought to a halt at least one point of the collector where the wall thickness of the collector is measured, and the measured data are stored in the measurement unit and/or sent to the surface. The invention further relates to a measurement unit capable of carrying out the method. The measurement unit (1) has an outer shell shaped as a body of revolution, with a propeller (2), driven by electric motor (3) and adapted to drive the measurement unit forward and backward, being connected to the rear end thereof. Reversible-direction propellers, driven by electric motor (3), are disposed in respective steering ducts (6, 7) located in the front portion of the measurement unit (1), with a front camera (18) and a periscope camera (17) being arranged to be connected through a data acquisition unit (16), where the periscope camera (18) is arranged perpendicular to the axis (24) of the measurement unit (1). A wall thickness measurement head (20), connected to a control/data storage unit (13), is built in the measurement unit (1) perpendicular to the axis (24) thereof, with a radio frequency (RC) control unit (10) adapted to perform control of the measurement unit (1 ) being also built therein. An RC antenna (11) is mounted on the outer shell, and energy is supplied to the measurement unit (1) from a built-in battery, with ballast tanks (4, 5) and compressed air tanks (15) being disposed inside the shell of the measurement unit (1), where the compressed air tanks are connected to the ballast tanks (4, 5) and the ballast tanks and compressed air tanks are adapted for floating and/or adjusting the submersion depth of the measurement unit (1).