Abstract: A system can include a low pressure manifold that includes an inlet and a plurality of outlets and a high pressure manifold that comprises a plurality of inlets and an outlet. The system can include a flow path that comprises one of the outlets of the low pressure manifold and one of the inlets of the high pressure manifold. The system can further include a pump that includes a portion of the flow path and a valve coupled with one of the low pressure manifold and the high pressure manifold. The system can further include a control system coupled with the valve and the pump, and the control system can include a processor that is configured to make a determination of whether the valve is in fluid communication with the flow path and control at least one of the valve and the pump based on the determination.

Abstract: Disclosed is a composite hydrological monitoring system, in which a counterweight component and a test component are respectively connected to both opposite ends of a strip and a plurality of sensors are disposed at different vertical positions. Accordingly, the scour depth can be measured by sensing the location of the counterweight component, whereas the water level and/or flow velocity can be determined by signals from the sensors. When the counterweight component moves downward with sinking of the riverbed, the strip would be pulled down and thus causes the test component to present a change in mechanical energy. Accordingly, the sinking depth can be measured by sensing the change of the mechanical energy. Additionally, since the water level variation would cause signal changes of the sensors arranged in a row along a vertical direction, the change of water level can be determined accordingly.

Abstract: An extendable probe for a formation testing tool includes a piston housing having a first diameter portion and a second diameter portion thereof. A piston including a piston base and a piston conduit. A piston base seal disposed between the piston base and the first diameter portion of the piston housing. The piston base seal representing an area; a piston conduit seal disposed between the piston conduit and the second diameter portion, the piston conduit seal representing an area. A pin in operative communication with the piston housing and extending though the piston; a pin seal disposed between the pin and the piston base, the pin seal representing an area; and wherein the piston conduit seal. Piston base seal and pin seal each are configured to adhere to the equation: piston conduit seal area=piston base seal area?pin seal area. A method for querying a formation fluid.

Abstract: A pressure measurement cell for use in an infusion or injection system for the injection of a fluid, with a housing in which at least one filter unit, through which the fluid under pressure is conducted, and at least one pressure transducer for the detection of the pressure of the fluid flowing from the filter unit are located. Such a pressure measurement cell is pressure-stable, causes only a slight pressure decline in the hose system of the infusion or injection system, can be produced at low cost, and makes possible a simple installation and handling when the hose system is inserted into a hose pump.

Abstract: An apparatus for testing a subterranean formation penetrated by a wellbore, comprising a tool having a sample flow line an inlet disposed with the tool and configured to establish fluid communication between the formation and the sample flow line to draw a fluid sample into the sample flow line, and an active filter positioned in the sample flow line and providing a filter flow route and a bypass flow route in the sample flow line.

Abstract: Systems and methods for downhole formation testing based on the use of one or more elongated sealing pads capable of sealing off and collecting or injecting fluids from elongated portions along the surface of a borehole. The modified sealing pads increase the flow area by collecting fluids from an extended portion along the surface of a borehole, which is likely to straddle one or more layers in laminated or fractured formations. A tester device using the elongated sealing pads can be deployed and withdrawn using an extendible element pressing the pads to the borehole. Various designs and arrangements for use with a fluid tester, which may be part of a modular fluid tool, are disclosed in accordance with different embodiments.

Abstract: An apparatus for testing a subterranean formation penetrated by a wellbore is disclosed. The apparatus has a tool with a sample flow line an inlet disposed with the tool and configured to establish fluid communication between the formation and the sample flow line to draw a fluid sample into the sample flow line. An active filter is positionable in the sample flow line and provides a filter flow route and a bypass flow route in the sample flow line.

Abstract: The present application is directed to a method and apparatus for monitoring soil hydraulic properties, and for collecting soil pore-water samples, in relatively undisturbed soil conditions, by means of a vadose zone probe (10) adapted to be mounted on an inflatable sleeve (18) for installation in a borehole (14) formed in the vadose zone, said vadose zone probe comprises a fluid cell (15) having one or more conduits (13a, 13b, 13c) connected thereto for externally accessing its interior, and a porous medium (11) installed in, or formed on, one of its walls for allowing passage of liquid between the interior of said fluid cell and the borehole soil, wherein said vadose zone probe is made from an elongated body having a front (10f) and rear (10r) sides, and wherein said rear side is substantially flat and said front side is made from a deformable and permeable material, or having a curvature corresponding to the curvature of said borehole.

Abstract: The present disclosure is directed to the filtering and collection of downhole fluids. An example system to filter and sample downhole fluids includes a first sampling chamber that includes one or more cone-shaped filters to receive downhole fluid, filter the downhole fluid, and store the downhole fluid, a second sampling chamber, a spool valve to allow the downhole fluid to flow into the first sampling chamber in a first position and to redirect the downhole fluid to the second sampling chamber or a base block in a second position, and a setting line to selectively move the spool valve from the first position to the second position.

Abstract: Systems and methods for downhole formation testing based on the use of one or more elongated sealing pads capable of sealing off and collecting or injecting fluids from elongated portions along the surface of a borehole. The modified sealing pads increase the flow area by collecting fluids from an extended portion along the surface of a borehole, which is likely to straddle one or more layers in laminated or fractured formations. A tester device using the elongated sealing pads can be deployed and withdrawn using an extendible element pressing the pads to the borehole. Various designs and arrangements for use with a fluid tester, which may be part of a modular fluid tool, are disclosed in accordance with different embodiments.

Abstract: A device for sampling fluid from an earth formation is disclosed. The device includes: an inlet port disposable in fluid communication with the fluid in a borehole; an injector including an injection chamber in fluid communication with the inlet port, the injector configured to receive a portion of the fluid and direct the fluid toward an analysis unit for analyzing constituent materials in the fluid; and a high pressure valve configured to admit the portion of the fluid at a borehole pressure and release the portion of the fluid into the injector, the portion having a volume that is less than or equal to about one microliter. A system and method for analyzing constituents of fluid in a borehole in an earth formation is also disclosed.

Abstract: A sample tank for receiving and storing sampled connate fluid from a subterranean geological formation. The sample tank includes a piston coaxially disposed within the tank. The piston can be disposed close to the end of the tank where the sampled fluid is introduced into the tank and urged along the length of the tank as sampled fluid is added to the tank. The piston includes an agitator for mixing the fluid and keeping particulates suspended within the fluid. The agitator includes a magnetic member, and is rotated by applying a varying electromagnetic field to the member.

Abstract: A pressure vessel having a cell with a locking pin, and a cap and associated methods and systems. The locking pin may be configured to engage the cap when the pressure vessel is pressurized to prevent rotation of the cap without depression of the cap.

Abstract: The present application is about a new construction disposition applied to sample collector for the purposes of feces parasitological exams, more precisely to one new construction form which is manufactured with a reduced number of parts, helping with its low cost, since it is a product discharged after its utilization; collector which includes a container which receives the attachment of a cover which contemplates a central conic sector from whose top a cylindrical duct is developed which can be closed by an over-cover or cap; it is predicted a concave filtering element, formed by polyester net or mesh in the order of 220 to 280?, preferably 266?, which represents the same radius of internal bending of the conic portion of the cover, affixed to it by means of fitting or another equivalent mean.

Abstract: An apparatus for testing a subterranean formation penetrated by a wellbore, comprising a tool having a sample flow line an inlet disposed with the tool and configured to establish fluid communication between the formation and the sample flow line to draw a fluid sample into the sample flow line, and an active filter positioned in the sample flow line and providing a filter flow route and a bypass flow route in the sample flow line.

Abstract: A formation fluid sampling tool is provided with a drill which drills into the formation in a manner perpendicular or oblique to the borehole wall. The tool comprises a mechanism for enhancing the mobility of the reservoir fluid, such as a heating element on the drill, hot fluid which is generated in the tool and injected into the drilled hole, or a solvent which is stored in the tool and injected by the tool into the drilled hole.

Abstract: An apparatus for testing a subterranean formation penetrated by a wellbore, comprising a tool having a sample flow line an inlet disposed with the tool and configured to establish fluid communication between the formation and the sample flow line to draw a fluid sample into the sample flow line, and an active filter positioned in the sample flow line and providing a filter flow route and a bypass flow route in the sample flow line.

Abstract: An apparatus and method for collecting a fluid from a subterranean formation are disclosed. An elongated probe is coupled to a carrier, and the probe engages a borehole wall to form a seal therewith. The elongated probe has an inner wall defining a cavity within the elongated probe. A sleeve member extends axially through the cavity, the sleeve member having a fluid flow path within the sleeve member, the flow path being in fluid communication with the cavity. At least one fluid moving device is associated with the sleeve member and the cavity that urges fluid from the formation into the elongated probe. The fluid moving device operates on fluid entering the probe to control a first flow rate in the cavity and a second flow rate in the sleeve member flow path.

Abstract: Methods and systems for characterizing drilling fluids laden with LCM (Lost Circulation Material) and other solid materials are disclosed. A test cell for analyzing a fluid is provided with a first conical inner portion and an axial positioning device positioned along an axis of the test cell. A first conical plug is coupled to the axial positioning device and is movable in and out of the first conical inner portion along the axis of the test cell. A fluid inlet is positioned at a first location on the test cell and a fluid outlet at a second location.

Abstract: The device comprises means (53) for analysing a gas or each gas and means (51) for taking a sample of at least one fraction of said gas, comprising at least one porous membrane element (55). The porous membrane element (55) comprises a support (63) and has a first surface (57) which is in contact with the liquid circulating in the duct (13) and a second surface (59) which opens out into a duct (61) which is connected to analysing means (53). The hardness of the first surface (57) is more than 1400 Vickers (kgf/mm2), ranging more particularly between 1400 and 1900 Vickers (kgf/mm2). The invention can be used to analyse the gaseous content of oil well boring sludge.

Abstract: A downhole, extendable apparatus and methods of use are described and claimed herein. In one embodiment, the extendable apparatus includes a piston that extends toward a borehole wall, the piston having an inner sampling member that is also extendable. The sampling member may be further extended to engage the borehole wall and penetrate the formation. The sampling member may also include a screen and an inner scraper or wiper that frictionally engages the screen and reciprocates to remove debris from the screen. The piston may comprise a seal pad having an internal cavity for receiving a volume of fluid. In another embodiment, the extendable apparatus comprises multiple, concentric pistons for extending the sampling member further toward the borehole wall than is possible with a single piston. The extendable apparatus may also include a retraction contact switch and position indicator.

Abstract: A device for sampling drill cuttings includes a frame, an inclined perforated member mounted on the frame, a sprayer for washing cuttings down over the perforations, and a removable open-topped cuttings collector mounted under the perforated member, the perforated member cooperating with the downstream end of a vibratory screen over which the cuttings pass before translating onto the perforated screen.

Abstract: A formation fluid sample is exposed to a rigidly-supported semi-permeable membrane such as silicone rubber to permit diffusion of gases and vapors from the formation fluid into a vacuum chamber, while at the same time, blocking the passage of any liquids. The membrane-transmitted gas is analyzed in the vacuum chamber by a residual gas analyzer. An ion pump or sorbent is associated with the evacuated chamber to maintain the vacuum. The ion pump or sorbent removes gases and vapors from the chamber that diffuse into the chamber from the reservoir sample that is on the opposite side of the semi-permeable membrane.

Abstract: A method and apparatus for testing formations surrounding an earth borehole. The method includes the following steps: providing a tool movable through the borehole; providing a flow line in the tool; establishing fluid communication between the formations and the flow line of the tool; and providing a sand trap in communication with the flow line of the tool for trapping sand flowing with fluid from the formations.

Abstract: A method and apparatus for reducing debris in a perforation in a wellbore extending from the wellbore into a subterranean formations is provided. A housing is positioned in the wellbore, and an arm is extended therefrom. One or more plugs are positionable in the perforation via the arm. The plug is adapted to block debris from formation fluid flowing into the housing via the perforation whereby the contamination in the formation fluid is reduced. The plug may be a filter positionable in the perforation, or a bit activated to dislodge debris.

Abstract: A method of monitoring pore pressure, comprises the steps of: (a) providing downhole in a well a sealable container, (b) sealing in the container a sample of fluid at a baseline pressure and a sample of a formation having an initial pore pressure, (c) measuring the change in pressure of the fluid sample, the pressure of the fluid sample and the pore pressure of the formation sample sealed in the container tending to equalize over time, and (d) estimating the initial pore pressure relative to the baseline pressure from the measured change in fluid sample pressure.

Abstract: An apparatus and methods are provided for monitoring a well and for obtaining fluid samples from below the ground. The apparatus includes a single-piece, extruded plastic well stock that extends from the surface of the ground to the lowest sampling depth. Plural sampling intervals are defined between the surface and the lowest sampling depth. Sampling intervals are defined by isolating sections of the borehole by using packers that seal the annular space between the well stock and the borehole. The well stock includes plural longitudinal chambers. Inlet holes are put into the well stock so that inlets for each interval admit fluid to only one longitudinal chamber. Inert sealant is injected below inlets to prevent fluid from spreading below a desired level. Instructions are placed into the longitudinal chambers to monitor fluids in the chambers or to retrieve samples, or alternatively, the well stock can be removed to obtain samples.

Abstract: A method and apparatus for determining the effectiveness and reaction time of a breaker fluid in breaking a filter cake on the wall of a wellbore penetrating a subterranean formation is disclosed. The method comprises employing an apparatus, such as for example the apparatus of the invention with a filter medium and the capability of applying differential pressure or dynamic conditions to form a filter cake on the filter medium with drilling mud. Breaker fluid is then substituted for the drilling mud, preferably without damage to the filter cake. The quantity of breaker fluid passing across the filter medium under static conditions is monitored over time. An increase in the rate of fluid passing across or through the medium indicates break-up of the filter cake.