David Sirda Shanks

Shanks Tech consulting · consulting

A three phase power system provided with a data communications system and associated method of data transmission for transmitting data over a three phase power system between a surface and a sub-surface location for an arrangement such as an oil field electrical submersible pump, the data communications system comprising a cabled connection from a...

Technology Update Defining the reservoir by its porosity, permeability, fluid content, water saturation, and behavior is one of the predrilling goals of exploration and production teams, with the aim of optimizing reservoir production over the life of the field. Advances in Reservoir Characterization Very few 2D measurements of any kind are taken f...

A multiphase flowmeter (10) and method of determining the proportions of two or more fluids flowing and also the flow rate of each of the fluids present in a harsh environment of multiphase fluid flow through a conduit at a well. One or more sensors (16) are mounted in the fluid flow to monitor a sensed area (22), with each sensor including electri...

A fluid measurement system and method for determining distributed measurement of a fluid type and a fluid velocity in a wellbore, pipeline or other conduit in which fluid is moving. Measurement is made by immersing one or more cables having sequential sampling sections in the fluid and monitoring a cooling effect across a cable on the sampling sect...

A fluid measurement system and method for determining component mixtures flowing in a conduit such as an oil well. The system includes a sensor wire (24) for location in a well bore (12); a signal generator (68) for injecting a high frequency signal along the wire (24); a data acquisition unit (72) to record first reflected signals received from th...

A fluid measurement system (10, 110, 210) and method of fluid mix determination over a sampling length (25) in a well bore (12). A pulse generator is nm in the well bore from which is suspended a cable (24) with two conductors having a length equal to the sampling length. A high frequency pulse is injected along the cable and from the detected resp...

Device and method for performing distributed fluid velocity measurement. An elongate device comprising along its length, a heated core (200), at least one outer layer (240) around the core, the outside surface of the outer layer (240) defining an outside surface of the device, and a distributed temperature sensor (230) located between the heated co...

GE’s Zenith GFI solution includes a unique new power and communications system that enables the gauge to operate with imperfect insulation on the ESP cable. The new system also provides faster data sampling than alternative gauges and delivers ESP cable condition measurements in addition to standard industry parameters.

A gauge system and method for monitoring well pressure at temperatures in excess of 300 DEG C. used in permanent monitoring of oil and gas wellbores. The gauge system includes an analogue output transducer and a long cable which is an extruded mineral insulated multi-core cable with a seam welded corrosion resistant metal outer sheath. The transduc...

Method and apparatus to determine the relative and/or absolute position of a phase change in a fluid reservoir comprising hydrocarbons by providing a first wire in a borehole within the reservoir; providing a reference system to the first wire in the borehole; transmitting an electromagnetic signal through the first wire; detecting a detected respo...

A method of data transmission for transmitting data over a three phase power system between a surface and a subsurface location, involves using a first data transmit frequency and a second data transmit frequency. The data transmit frequencies are numerically distinct to each other and the data is transmitted on at least the second transmit frequen...

Abstract It has historically been difficult to permanently monitor steam flood operations and also HPHT wells as the gauges available have short life spans and also give erroneous results. This project demonstrates a new, unique, robust, and available technology which will enable reliable monitoring of high temperature oil wells in the future. The...

A redundant sensor system monitoring an electric submersible pump in a wellbore includes a plurality of sensors 9 located downhole, a single power cable 7 to the surface and a voltage detector switch 52 for switching power between the sensors. A power supply 40 at the surface selectively produces a plurality of DC voltages under control of a voltag...

ABSTRACT A method of high frequency data transmission for transmitting data over a three phase power system between a surface and a subsurface location, method using a first data transmit frequency and a second data transmit frequency, the data transmit frequencies being numerically distinct to each other and the data is transmitted on at least the...

I ran a government funded project for close to 3 years developing a new ESP monitoring system, that could measure the operating patterns of an ESP system and we planned to try and predict future events from changes in the pumps operating pattern. The system was deployed in a field in the Middle East and a number of real life results obtained. This...

A ratio tool is described that is capable of determining the nature and quantities of fluids passing therethrough. The ratio tool can be used with single or multiple phase fluids but is particularly suited for use in multiphase fluids. The ratio tool uses sensors which measure electrical properties of the fluid. The electrical properties are either...

A flow meter 10 can be used to determine the flow rate of fluid passing therethrough using a restriction or choke 18 in the path of the fluid 26. There is also a ratio tool 28 capable of determining the nature and quantities of fluids passing therethrough. The ratio tool 28 can be used with singlephase and multiphase fluids in an oil or gas pipelin...

WE developed a partially integrated software and machine control system for streamlining the assembly and test of complex oil field equipment, such as motors, packers and completion equipment. WE were working on pressure test stations and torque machines with AMC at the time. This paper was presented at a workshop on automation presenting the next...

A telemetry system is capable of transmitting both power and data signals between a master unit 10 and at least one slave unit 50 (a,b) over a transmission system 12 which is part of a borehole, an oil well or a pipeline which may be a subsea installation. The transmission system comprises a tubing string or pipeline incorporating electrically isol...

A method of and apparatus for generating and protecting hard sector pulses using the read/write heads of the disk drive without using any external transducers is disclosed. Each track of the disk is pre-formatted with a pattern of a burst of data followed by a short erased gap repeated around the track once per sector. The data bursts are converted...