Abstract: Inflow control devices that can be used for both viscous and less viscous hydrocarbons. Optimized configurations for passive inflow control devices or ICDs having two types of fluidic pathways are combined in the same device or well in series or in parallel. Also provided, are well configurations that can be used for e.g., steam assisted oil recovery methods, wherein steam flashing is prevented by included dual type passive inflow control devices in the completion.

Abstract: A method of optimization ICD design that includes consideration of reservoir characteristics, well configuration and type of enhanced oil recovery technique, as well as needed performance characteristics. Thus, the ICD is optimized for particular wells, reservoirs and/or enhanced oil recovery uses.

Abstract: Methods and systems simulate hydrocarbon production from a reservoir and predict impact of flow control devices on production for such reservoir simulation. The methods may transform equations capturing properties that describe flow of fluids through the flow control devices into input parameters desired for use with reservoir simulators. The equations may be determined based on physical properties of the flow control devices or fitted to match experimental or computational fluid dynamics data.

Abstract: The present disclosure relates to passive flow control devices or FCDs and modeling methods applicable to same. In particular, a new method to extrapolate the value of a reference FRR tool to other tools with the same architecture, but different ratings. Instead of scaling the output of the model, the data of the available characterizations is used to extrapolate what the characterization results would be to the different FRR. This estimated data set is then used to fit a new model for the uncharacterized FRR tool.

Abstract: A method of optimization ICD design that includes consideration of reservoir characteristics, well configuration and type of enhanced oil recovery technique, as well as needed performance characteristics. Thus, the ICD is optimized for particular wells, reservoirs and/or enhanced oil recovery uses.

Abstract: The present disclosure relates to passive flow control devices or FCDs and modeling methods applicable to same. In particular, a new method to extrapolate the value of a reference FRR tool to other tools with the same architecture, but different ratings. Instead of scaling the output of the model, the data of the available characterizations is used to extrapolate what the characterization results would be to the different FRR. This estimated data set is then used to fit a new model for the uncharacterized FRR tool.

Abstract: The present disclosure relates to passive inflow control devices or ICDs having two types of fluidic pathways combined in the same device or well in series or in parallel. Also provided, are well configurations that can be used for e.g., steam assisted oil recovery methods, wherein steam flashing is prevented by included dual type passive inflow control devices in the completion.

Abstract: Methods and systems relate to completing a subsea well having a wellhead with required pressure integrity. An electrical coupling delivers power and communication across the wellhead to completion equipment in the well. The electrical coupling may couple with a single conductive line through which power and communications are multiplexed. Multiple flow controlling tools disposed in the well couple to the conductive line with at least one energy storage device charged by the power from the conductive line for powering actuation of the tools.

Abstract: Methods and systems relate to completing a subsea well having a wellhead with required pressure integrity. An electrical coupling delivers power and communication across the wellhead to completion equipment in the well. The electrical coupling may couple with a single conductive line through which power and communications are multiplexed. Multiple flow controlling tools disposed in the well couple to the conductive line with at least one energy storage device charged by the power from the conductive line for powering actuation of the tools.

Abstract: Methods and systems simulate hydrocarbon production from a reservoir and predict impact of flow control devices on production for such reservoir simulation. The methods may transform equations capturing properties that describe flow of fluids through the flow control devices into input parameters desired for use with reservoir simulators. The equations may be determined based on physical properties of the flow control devices or fitted to match experimental or computational fluid dynamics data.

Abstract: A flow control device for use in a wellbore to allow flow of formation fluid into the wellbore comprises a valve member adapted to move when disposed in the wellbore. A fluid line supplies a working fluid under pressure to move the valve member to allow the fluid to flow into the wellbore. A sensor in the wellbore, and associated with the fluid line, provides an indication of a position of the valve member. A method of determining a state of a flow control tool within a wellbore comprises supplying fluid under pressure to the flow control tool to move a flow control member of the tool into the state. Pressure of the supplied fluid is detected downhole. The state of the flow control device is determined from the detected pressure of the supplied fluid.

Abstract: A system and method for supplying an additive into a well is disclosed that includes estimating injection rates for the additives and setting of one or more fluid flow control devices in the well based on a computer model. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract: A flow control device for use in a wellbore to allow flow of formation fluid into the wellbore comprises a valve member adapted to move when disposed in the wellbore. A fluid line supplies a working fluid under pressure to move the valve member to allow the fluid to flow into the wellbore. A sensor in the wellbore, and associated with the fluid line, provides an indication of a position of the valve member. A method of determining a state of a flow control tool within a wellbore comprises supplying fluid under pressure to the flow control tool to move a flow control member of the tool into the state. Pressure of the supplied fluid is detected downhole. The state of the flow control device is determined from the detected pressure of the supplied fluid.

Abstract: In order to ensure that at least some of the tools (12-1) to 12-4) in a string of tools that is permanently installed in an oil well (10) are kept in operation even in the event of a localized fault, the link (18) interconnecting the tools and a surface installation (16) is subdivided into segments by switch members (20). More precisely, a switch member is associated with each tool. In addition, the link (18) forms a loop with both ends thereof being connected to the surface installation (16).

Abstract: A method and apparatus for predicting the peak voltage at the load end of a power transmission cable having a power supply end and a load end, where direct measurement at the load end is not practical. The method samples the current and voltage waveforms at the power supply end of the cable. The current waveform is used to estimate a current function which includes a full width at half maximum and adjustments for cable reactive current, distortions, and load. The product of the current function and a peak voltage sample from the power supply end is an estimate of the peak voltage at the load end. The method and apparatus have been applied to oil well logging where one or more logging tools are lowered at the end of a transmission cable into an oil well and it is desirable to predict peak voltage at the tools to ensure proper tool performance. An important improvement is a more accurate current function which compensates for capacitive current flow in the cable and includes a quadratic term.

Abstract: A method and apparatus for detecting magnetic marks on a wireline logging cable and for more accurately making depth measurements during logging is described. The method uses depth-based, rather than time-based, samples and calculations. A Hall Effect sensor samples the cable at regular depth intervals approximated by an encoder mechanism. The signal values from the Hall Effect sensor are signal processed to better discriminate the precise location of the magnetic marks on the cable. The location of the magnetic marks is used to refine the depth measurements from the encoder mechanism. Depth-based sampling eliminates detection dependence on cable speed, enhances detection ability, reduces computational load, and leads to more accurate determination of the location of magnetic marks.

Abstract: A method and apparatus for predicting the peak voltage at the load end of a power transmission cable having a power supply end and a load end, where direct measurement at the load end is not practical. The method samples the current and voltage waveforms at the power supply end of the cable. The current waveform is used to estimate a current function which includes a full width at half maximum approximation adjusted as required for load, cable type, and cable length. The product of the current function and a peak voltage sample from the power supply end is an estimate of the peak voltage at the load end. The method and apparatus have been applied to oil well logging where one or more logging tools are lowered at the end of a transmission cable into an oil well and it is desirable to predict peak voltage at the tools to ensure proper tool performance.

Abstract: A bus interfacing device suitable for use in computerized data acquisition systems for interfacing a main processor bus to an auxiliary peripheral bus. The operation of peripherals connected to the auxiliary peripheral bus can be controlled by either the main processor or the bus interfacing device. The device also allows data gathered from peripherals on the auxiliary bus to be stored in a dual-ported RAM for transfer in DMA-type fashion over the main processor bus.

Abstract: A method for measuring wireline depths in a borehole using paired encoder wheels frictionally engaging the wireline is disclosed. The method allows for the correction of the measurement from a slipping encoder wheel without corrupting the measurement from the non-slipping encoder wheel.The method comprises incrementing corresponding depth counters whenever a pulse is produced by one of the encoder wheels. The depth counts are compared and if a significant difference exists, the value of the counter corresponding to the slipping encoder wheel is set equal to the value or the other wheel.