183 results about "Wireline" patented technology

A method and system for configuring a wireless router and a wireless communications network includes establishing connectivity between a wireless router and at least one wireline router. Connectivity between the wireless router and a plurality of neighboring wireless routers is established through the wireline router. The wireless router is configured based on information exchanged with the neighboring wireless routers through the wireline router.

Embodiments of the invention relate to a wireline assembly that includes a coring tool for taking coring samples of the formation and a formation testing tool for taking fluid samples from the formation, where the formation testing tool is operatively connected to the coring tool. In some embodiments, the wireline assembly includes a low-power coring tool. In other embodiments, the coring tool includes a flowline for formation testing.

Systems, methods, and user interfaces are provided for customized communication routing and regulation thereof. The routing of an incoming communication to a device, wireless or wireline, is based on a routing preference and a presence condition of a mobile device in a home or visited wireless environment served by a confined-coverage access point (AP). The routing preference can be configured for a device that operates in the home or visited wireless environment. The confined-coverage AP can be owned or leased by a subscriber associated with the incoming call or by a third party. Provisioning of routing of incoming call based on a third-party confined-coverage AP can be event-based. Add-on services can be provisioned and configured; screening of incoming call(s) based on screening rule(s) specific to an confined-coverage AP is provided. Customized communication routing to equipment that operates in a confined-coverage area served by a third-party confined-coverage AP can be cancelled.

There is described a data collection device that can incorporate an encoded information reading unit that can operate within a system including an access point that is wireline connected to a server. The encoded information reading unit can include at least one of a bar code reading unit, an RFID tag reading unit and a credit / debit card reading unit. Further incorporated in the data collection device can be dynamic access module. The dynamic access communication module enables the data collection device to participate in a self organized network that supports multi-hop data packet transmissions between data collection devices and which further enables the device to transmit data received from a peer device to the system access point.

An NMR logging tool for conducting NMR measurements in a plurality of sensitive volumes ranging up to a meter from the tool. The tool comprises a magnetic assembly using one or more permanent magnets and at least one pole piece for extending a magnet pole and shaping the magnetic field to simulate a magnetic monopole in a sensitive volume within the formation. Different embodiments of a segmented antenna enable directional NMR logging. The tool embodiments and methods of their use are suitable for wireline or LWD logging, and can be used for directional drilling.

A galvanic resistivity tool with one or more measurement electrodes and guard electrodes, and one or more shielding electrodes. The potential difference between the measurement electrodes and the guard electrodes is controlled to minimize current flow between the measurement electrodes and the shielding electrodes. This provides improved focusing and avoids effects of contact impedance.

A method and apparatus for converting downhole wireline logging measurements of pressure gradient, formation pressure and temperature into estimates of petroleum fluid PVT properties unaffected by oil-based drilling mud, without the need for retrieving actual petroleum samples from the borehole for laboratory analysis at the surface. The statistical accuracy of the PVT properties of reservoir fluids are enhanced with geochemical information of the fluids expected from a given reservoir.

An in-well ESP string that can be installed or retrieved with a wireline instead of a rig. The ESP is combined with a motor and a hydraulic valve to pump formation fluid from a well to the surface. A wet connector is used to facilitate electrical and hydraulic connections. The ESP system is disposed within a tubing string located within the casing of a well. The hydraulic valve controls the flow of formation fluid to the ESP, opening to allow formation fluid to flow to the ESP, and closing to shut off production. When the valve is closed, the ESP may be cleaned with brine introduced via a flow port in the valve. This cleaning operation allows the ESP string to be to retrieved in an environmentally friendly manner. In addition, the wireline installation and retrieval is significantly less costly and less complicated than currently possible with a rig.

A digital subscriber loop line card-installed mechanism conducts parametric measurements on the wireline to which the line card is connected, and adjusts taps of an echo cancellation operator in accordance with the response of the wireline to an electrical stimulus imparted to the wireline. The echo canceler tap coefficients are then processed to determine the location of a fault, such as a short circuit, open-circuit and the like, on the wireline. Fault information measurement data is then reported to a supervisory control location, which dispatches the appropriate technician to resolve the cause of the problem.

A data telemetry system for multi-conductor wirelines to enhance transmission of analog and digital signals with frequency content up to 100 kHz by assigning at least two conductors to a first terminal of a data transmittal means and to a first terminal of a data receiver means and connecting at least one additional conductor to a second terminal of a data transmittal means and to a second terminal of a data receiver means. Pairing conductors reduces attenuation and crosstalk and permits the signal to contain multiple frequency modulated carrier bands with individual channel bandwidths of up to 3 kHz or higher.

The present invention is directed to methods and systems for taking measurements relating to subterranean formations. The methods and systems effectively compress data and thus facilitate more efficient data transmission. The methods and systems are capable of automatically varying data compression rates during a measurement operation. The variable data compression capability facilitates reliable collection of measurement data at faster and / or constant logging speeds. The data compression methods and systems may be applied to any measurement operation relating to subterranean formations, including, but not limited to: acoustic wireline logging measurements, acoustic logging-while-drilling measurements, electromagnetic measurements, nuclear magnetic resonance measurements, and resistivity measurements.

Wireline NMR well logging measurements suffer from disadvantages of poor vertical resolution, logging speeds less than 20 ft / min, and power consumption in excess of 200 W. In spite of these disadvantages, NMR well logging is used because it is capable of providing estimates for a number of petrophysical parameters that are difficult to obtain from other wireline data. These include estimates of the bulk volume irreducible (BVI) of fluids in the formation. The present invention targets BVI and clay bound water (CBW) measurements. Logging speeds of up to 60 ft / min are attainable with little or no loss of resolution. In one preferred embodiment, the tool has four sensors circumferentially distributed around the logging tool and in contact with the borehole wall. A horseshoe like magnet is used to generate the static magnetic field. The magnet poles are designed such that the magnetic field is uniform perpendicular tool motion, as well as provide a sufficiently large extent of the static field to provide polarization for bound water in rock formations. The RF portion of the sensor is comprised of at least one coil configured for transmission of an RF magnetic field into rock formations and at least two coils configured to separately receive the NMR signal from the formation. In another embodiment a coil is wound around the pole pieces or the iron yoke for the purpose of field shifting to enable acquisition of phase-alternated measurements.

A method and apparatus for scheduling the transmission of data packets over a multihop wireless backhaul network in which delay guarantees through the network may be advantageously ensured. Illustratively, a novel packet scheduling scheme is provided which is advantageously based on an existing scheduling policy for wireline networks and for which a delay guarantee (based on the delay characteristics of the existing scheduling policy) can be advantageously ensured. In one embodiment, an even-odd link activation framework is defined for a given multihop wireless backhaul network, and an associated scheduling policy based on an arbitrary existing scheduling policy for wireline networks is derived and adopted. In such a case, the derived scheduling policy, when applied to the given multihop wireless backhaul network, advantageously ensures a worst-case delay guarantee of approximately twice that of the existing scheduling policy for wireline networks.

A method and apparatus detects a ground fault on a span-powered telecommunication wireline within a plurality of span-powered wireline segments, to respective ones of which DSL-Cs are coupled, so that a ground fault may be detected when power is delivered by the DSL-C over a respective wireline segment to a respective downstream functional RT. A respective DSL-C measures a first voltage across a first sense resistor representative of current flowing in a first portion of its wireline segment to the RT, and also measures a second voltage across a second sense resistor representative of current flowing in a second portion of the wireline segment from the RT. In response to a difference in the first and second voltages an output representative of a ground fault in that wireline segment is generated.

The invention discloses a fluid conductivity sensor, and a device and a method for measuring fluid conductivity, and relates to the field of wireline logging. The method comprises the following steps: detecting voltage values of the two ends of a receiving resistor at different temperatures when no fluid passes to obtain multiple groups of first voltage values; inverting a relationship between induced voltages generated at the two ends of the receiving resistor by a transmitting coil and temperature variation according to the relationship between the multiple groups of first voltage values and temperature variation; detecting the voltage values of the two ends of the receiving resistor at different temperatures when fluid to be monitored passes to obtain multiple groups of second voltage values; calculating to obtain a relationship between the fluid conductivity and temperature variation according to the relationship between the induced voltages generated at the two ends of the receiving resistor by the transmitting coil and temperature variation and the multiple groups of second voltage values. Due to the design that a winding is connected in parallel with the fluid conductivity sensor and a matched circuit is provided, temperature compensation of the sensor is realized, and measuring accuracy of the coil type fluid conductivity sensor under a high-temperature environment is guaranteed.

An improved data telemetry system for multi-conductor wirelines to achieve satisfactory transmission of analog and digital signals with frequency content up to 100 kHz by assigning at least two conductors to a first terminal of a data transmittal means and to a first terminal of a data receiver means and connecting at least one additional conductor to a second terminal of a data transmittal means and to a second terminal of a data receiver means. Pairing conductors reduces attenuation and crosstalk and permits the signal to contain multiple frequency modulated carrier bands with individual channel bandwidths of up to 3 kHz or higher.

Measurements made by a wireline-conveyed pulsed neutron tool with two or more gamma ray detectors are used to provide a mineralogical and / or elemental image of the formation. This may be used in reservoir navigation and in furthering the understanding of the geology of the prospect.

The present invention relates to a wellbore pumping system submerged into a wellbore for unloading liquid from a wellbore comprising well fluid, such as gas, having a wellbore pressure, comprising a pump having an inlet and an outlet, a tubing fluidly connected with the outlet of the pump, and a driving unit connected with and powered by a cable, such as a wireline, and having a rotatable drive shaft for driving the pump, wherein the pump is a reciprocating pump comprising at least one pumping unit having a first moving member displaceable in a housing for sucking well fluid into and out of a first chamber. Furthermore, the invention relates to a wellbore pumping method.