Abstract: A system for protecting an Electrical Submersible Pump (ESP) string from gas slugs in a downhole well environment. The system comprises an intake tube having a first and second end and one of a packer having a bypass channel and an inverted shroud coupled to the intake tube and the ESP string. The intake tube is independent of a pump and a motor of the ESP string. The system can comprise a bypass tube for channeling the gas slug downstream of the pump. The bypass tube is integrated with the packer. The inverted shroud is coupled with the first end of the intake tube and a section of production tubing downstream from the pump and the motor. The inverted shroud forms a bypass path channel within a casing annulus.

Abstract: An automated zipper manifold with remotely and independently controlled and monitored valves, wherein second pressure transducers are positioned on the zipper manifold and are configured to determine a flow analysis across the valve.

Abstract: A pumping system includes a motor and a drive shaft configured for rotation by the motor. The pumping system includes an upper pump positioned above the motor, an upper pump shaft and an upper directional coupling connected between the drive shaft and the upper pump shaft. The upper directional coupling is configured to lock the upper pump shaft to the drive shaft when the drive shaft is rotated in a first direction. The pumping system further includes a lower pump positioned below the motor, a lower pump shaft, and a lower directional coupling connected between the drive shaft and the lower pump shaft. The lower directional coupling is configured to lock the lower pump shaft to the drive shaft when the drive shaft is rotated in a second direction.

Abstract: A gas pump system for producing a well has production tubing, a chamber to collect liquid from the well, a check valve to allow well liquids to flow into the chamber and to check flow out of the chamber, a dip tube in communication with the production tubing and the chamber, a check valve to allow liquid to flow up the dip tube into the production tubing and to check liquid flowing down the dip tube, a gas supply line to convey gas into the chamber, a hydraulic valve controlling flow through the gas supply line, a gas vent line to vent gas from the chamber, a hydraulic valve controlling flow through the gas vent line, a control line communicating with one or both of the gas supply valve and the gas vent valve, and a shut-off valve in the well controlling flow through the control line.

Abstract: Systems and methods for increasing hydrocarbon production using an electrical submersible pump are described. The methods typically include, for example, configuring an electrical submersible pump comprising a gas separator to induce a gas lift effect in a well comprising a tubing within a casing. Hydrocarbon production from the well is therefore increased using the electrical submersible pump.

Abstract: A method for evaluating the potential effectiveness of refracking a previously fracked oil/gas well is accomplished by isolating a plurality of previously fracked zones of an oil/gas well in a formation and measuring the fluid flow rates from the isolated zones using a three phase flow meter positioned within the well at or near the previously fracked zones. The zones may be isolated by an isolation assembly which includes two packers connected by a perforated pipe and attached to a tubular positioned within the well.

Abstract: A hybrid hydraulic gas pump system includes a hydraulic gas pump installed on the lower end of a production tubular where the production tubular incorporates a gas lift system. The hydraulic gas pump may be operated using the same gas in the annular region as the gas lift system or may be operated using an independent supply line where the independent supply line is concentric with, or at least within, the production tubular. In some instances, the gas pump chamber may simply be an upper packer including a pickup tube, a check valve, and a pressurized gas supply line or other pressurized gas access mechanism along with a lower packer including a check valve. Each upper and lower check valve allows fluid to flow from below the packer to above the packer.

Abstract: A well (10) in a geological structure, the well (10) comprising a first casing string (12a) with a second casing string (12b) partially inside, and a third casing string (13c) partially inside the second casing string (12b). A first inter-casing annulus (14a) is defined between the first (12a) and second casing strings (12b), and a second inter-casing annulus (14b) is defined between the second (12b) and third casing strings (12c). A primary fluid flow control device (16a), such as a wirelessly controllable valve, on the second casing provides (12b) fluid communication between the first inter-casing annulus (14a) and the second inter-casing annulus (14b); and a secondary fluid flow control device (16b), such as a second wirelessly controllable valve, on the third casing string (12c) provides fluid communication between the second inter-casing annulus (14b) and a bore of the third casing (14c).

Abstract: Embodiments of the present disclosure generally relate to a hydraulic pump with gas lock prevention. The pump includes a pump barrel having an intake port and a discharge port and a pump piston movably disposed in the pump barrel. The pump piston divides an inner volume of the pump barrel into a first pump volume connected to the discharge port and a second pump volume connected to the intake port. A pump flow path is formed through the pump piston connecting the first pump volume and the second pump volume. The pump further includes a first valve disposed in the pump flow path in the pump piston. The first valve selectively permits fluid flow from the second pump volume to the first pump volume. The pump further includes a second valve disposed at the discharge port to selectively permit fluid flow out of the first pump volume through the discharge port.

Abstract: A reservoir fluid production system for producing reservoir fluid from a subterranean formation is provided for mitigating gas interference by effecting downhole separation of a gaseous phase from reservoir fluids, while mitigating entrainment of liquid hydrocarbon material within the gaseous phase.

Abstract: A downhole power generation device includes a tubular housing configured to be disposed within an annular space and around a portion of production tubing. The housing includes a flow compartment configured to receive a flow of fluid therethrough when the power generation device is in a power generation mode, and an electronics compartment comprising a controller and a power generation unit. The downhole power generation device further includes a turbomachinery system comprising a rotor disposed within the flow compartment and comprising a rotor hub and a plurality of rotor blades, wherein the rotor rotates when the flow of fluid traverses the flow compartment. The downhole power generation device also includes a port coupled to the flow compartment, through which fluid enters the flow compartment.

Abstract: Systems for simultaneously injecting and producing in a well having multiple zones. One system includes a wellbore providing first perforations extending into a first subterranean formation and second perforations extending into a second subterranean formation, a production tubing having influx ports defined therein and an annulus defined between the wellbore and the production tubing, first and second pairs of wellbore isolation devices arranged about the production tubing and axially straddling the first and second perforations to define first and second formation zones, respectively, a first bypass conduit extending between the first pair of wellbore isolation devices, a second bypass conduit extending between the second pair of wellbore isolation devices, and an injection outlet defined on the first bypass conduit for injecting a portion of the fluid into the first subterranean formation and push hydrocarbons toward the second formation zone to be produced.

Abstract: This disclosure is drawn to methods, systems, devices and/or apparatus related to power control in applications over long cables. Specifically, the disclosed methods, systems, devices and/or apparatus relate to power control that considers the maximum power available at the end of a long cable (or from a battery) to a load over a broad range of load conditions. Some example systems may include a power supply located at the Earth's surface and a power converter coupled to the power supply via a cable having a first end coupled to the power supply and a second end coupled to the power converter. Some example power converters may be configured to measure the power being consumed by the electrical load in the well, and adjust operating parameter(s) of the electrical load based, at least in part, on the maximum power available at the second end of the cable.

Abstract: A system for gas hydrate production. The system includes a tubular having a plurality of ports. The plurality of ports includes a first port configured to automatically open at a first differential pressure, and to remain closed at differential pressures below the first differential pressure. A second port configured to remain closed at the first differential pressure, and to automatically open at a second differential pressure greater than the first differential pressure; wherein the second port is located uphole of the first port. Also included is a method of improving methane hydrate production.

Abstract: Methods and systems are disclosed for well completion and/or production, where an aggregating, agglomerating or conglomerating composition is injected into a producible formation, zone or interval thereof to alter an aggregation or zeta potential of formation surfaces and particulate to increase a maximum sand free production rate.

Abstract: The present invention relates to a multistage centrifugal pump design, which has the diffusers, impellors, and a shaft, inserted within a high pressure housing, such that this assembly is fully enclosed within the housing, and the housing is of sufficient strength to be suitable for safe pressure containment of the fluids being pumped. This invention describes the technical details used to reconfigure the multistage centrifugal pump design to increase the discharge pressure capabilities higher than the 6,000 psig of current designs.

Abstract: A system for supplying water to a desalination plant from a subsurface feedwater supply using one or more slant or horizontally directionally drilled (“HDD”) wells, and for concentrate disposal (e.g., injection of brine). A method for constructing a slant or HDD well feedwater supply system for supplying water from a subsurface feedwater supply or to inject concentrate into a subsea aquifer.

Abstract: A technique enables independent lifting of fluids in a well. The technique utilizes an electric submersible pumping system which is disposed in a wellbore and encapsulated by an encapsulating structure. The encapsulating structure has an opening through which well fluid is drawn to an intake of the electric submersible pumping system. A dual path structure is positioned in cooperation with the electric submersible pumping system and the encapsulating structure to create independent flow paths for flow of a gas component and a remaining liquid component of the well fluid. The independent flow paths also are arranged to prevent contact between the well fluid components and a surrounding wellbore wall.

Abstract: The present invention relates to a system, apparatus, and method provided to selectively produce petroleum fluid from multiple production zones well. The apparatus comprises a casing running downwardly into the well and a tubing string running in the casing. The upper and lower sealing mechanisms are provided for sealing the annular space between the casing and the tubing string, therefore, dividing the well into upper and lower production zones. Moreover, the invention comprises a bypass gaslift system provided with a tubular member, tubing string, connecting means and side pocket mandrels for injecting lifting gas into the multiple production zones well. The system and apparatus according to this invention can selectively operate to simultaneously or separately produce petroleum fluid from vertical apart multiple zones well.

Abstract: A bearing for a wellbore tool includes a flow device. The flow device may be a pump such as a positive displacement pump or a hydrodynamic pump. In arrangements, a pump stator connects to a wellbore wall. A pump rotor rotates with a drilling motor, and/or a drill string. Rotation of the pump rotor may generate a pressure differential to displace the fluid. The pump may be configured to flow fluid across a gap between a rotating section and a non-rotating section of the bearing. The fluid may be drawn from a wellbore annulus and also returned into the wellbore annulus. The bearing may support thrust loadings and/or a radial loadings. In embodiments, inserts in the bearing may be used to filter the fluid.

Abstract: Well bore fluid redistribution methods to isolate fluids produced in well bores from different geologic sections on either side of an apparatus and redistribute such fluids produced in well bores between different geologic sections to reduce surface discharge of fluids while delivering gas to a well outlet.

Abstract: A well completion and related method are provided for formations susceptible to simultaneous production of oil and water. In one embodiment, two closely spaced, preferably horizontal wellbores are drilled from a single well into the reservoir. The reservoir rock surrounding one leg (typically the upper leg) is chemically treated to make it hydrophobic, whereas the reservoir rock surrounding the other leg is chemically treated to make it hydrophilic. Separate production tubing and a dual completion is installed in order to enable independent flow from each leg. Drawdown pressures in both legs are controlled to be sufficiently close to each other such that only oil flows into one leg and only water into the other. The water produced is re-injected downhole or brought to the surface.

Abstract: A method for removing fluids from a commingled well comprises positioning a fluid removal system in the well. In addition, the method comprises sealing a first formation from a second formation, shutting in the annulus, and closing off an inner flow passage of a tubing string. Further, the method comprises allowing the pressure of the first and second production zones to build up naturally. Still further, the method comprises flowing a fluid from the first production zone through a first of a plurality of check valves into the inner flow passage, and flowing a fluid from the second production zone through a second of the plurality of check valves into the inner flow passage. Moreover, the method comprises re-opening the inner flow passage of the tubing string and lifting the fluid in the inner flow passage to the surface.

Abstract: A pump is disclosed which has a housing with a upper end and a lower end. A conduit is defined through the housing between the upper and the lower ends. The pump includes an impeller within the housing, an inlet from the conduit to the impeller and an outlet from the impeller. Portions of the impeller may be distributed around the conduit. The pump may also include a motor coupled to the impeller. Portions of motor may also be distributed around the conduit. The outlet from the impeller may be independent of the conduit.

Abstract: Well bore fluid redistribution apparatuses which can be inserted into a well bore to isolate fluids produced in well bores from different geologic sections on either side of the apparatuses. Operation of the well bore fluid redistribution apparatuses can redistribute fluids produced in well bores between different geologic sections to reduce surface discharge of fluids.

Abstract: The claimed invention relates to the downhole systems for extracting various fluids, in particular—for simultaneous extraction out of a number of producing formations. The inventive downhole system comprises a casing pipe and a tubing extending through said casing pipe, between which pipe and tubing formed are separate isolated cavities. Each one of which cavities communicates, via perforations, with a respective producing formation. In each one of the isolated cavities, to the tubing coupled is a hydraulic machine comprised by a motor and pump. The hydraulic machines in different isolated cavities being adapted to be adjusted independently. This system permits simultaneous extraction of fluids out of different producing formations, with independent controlling of such extraction in various formations. The claimed invention also relates to an immersion hydraulic machine used for extracting fluids.

Abstract: A method of producing a well fluid includes securing a motor to a string of outer tubing and lowering the outer tubing and motor into the well. A rotary pump is secured to a string of inner tubing and lowered into the outer tubing. The pump stabs into cooperative engagement with the motor. Supplying power to the motor rotates the pump, causing well fluid to flow into the outer tubing to an intake of the pump, which pumps the well fluid through the inner tubing to an upper end of the well. Removing the well fluid allows gas to flow up an annulus surrounding the outer tubing to the upper end of the well.

Abstract: A system is disclosed for supplying water to a desalination plant from a subsurface feedwater supply using one or more slant wells. A method is disclosed for constructing a slant well feedwater supply system for supplying water from a subsurface feedwater supply. A system of angled wells (slant wells) is constructed. The slant wells obtain a desalination feedwater supply from permeable aquifer systems near and/or beneath a saline water source (i.e., an ocean, sea, or salty inland lake). The slant wells induce recharge of the aquifer system through the floor of the ocean, sea, or inland lake due to the hydraulic head difference between the slant well pumping level and the level of the ocean, sea, or lake. As the supply source is relatively constant, the water supply to such a slant well system generally provides a long-term, sustainable water source for a desalination plant.

Abstract: The present invention relates to a system, apparatus, and method provided to selectively produce petroleum fluid from multiple production zones well. The apparatus comprises a casing running downwardly into the well and a tubing string running in the casing. The upper and lower sealing mechanisms are provided for sealing the annular space between the casing and the tubing string, therefore, dividing the well into upper and lower production zones. Moreover, the invention comprises a bypass gaslift system provided with a tubular member, tubing string, connecting means and side pocket mandrels for injecting lifting gas into the multiple production zones well. The system and apparatus according to this invention can selectively operate to simultaneously or separately produce petroleum fluid from vertical apart multiple zones well.

Abstract: A system of de-watering boreholes by alternating cycles of aspiration and expulsion based on pneumatic displacement, includes a double hose to be introduced into a borehole. The double hose includes a flexible outer hose and a flexible inner hose separated by an annular space therebetween, the double hose adapted to reach a full depth of the borehole. The outer hose has an outer diameter less than a diameter of the borehole to provide an annular clearance between the borehole and the outer hose. An upper closing element is connected to an upper end of the double hose outside of the borehole, and has two outlets which permit entry and exit of air and water. A lower closing element is attached to the double hose at a lower end thereof, and includes a foot valve, a filter, and a protective element to serve as a battering ram.

Abstract: A technique is provided for control of subsea well systems. The technique utilizes a subsea controller coupled to a plurality of subsea well system components to allow localized control of the subsea well system. The subsea controller can be used in a variety of functional applications, such as balancing power distribution to subsea components.

Abstract: A method and apparatus for desalinating water combined with power generation, wherein a desalination system is used for desalinating coastal seawater and is operationally related to a power generation system, wherein such dual purpose cogeneration facility captures the heat vapor exhausted or a steam turbine generator's condenser is replaced by the desalination plant's heat exchanger enabling such captured heat energy to reduce the energy requirements of the desalination plant, and wherein brine solution being utilized by the desalination plant is circulated from and to the substrata sea water table via supply and return wells.

Abstract: A system for distributing fluid to a plurality of wellbores drilled from a common pad includes at least two fluid conduits extending between the wellbores. The fluid conduits are configured to couple at one end to a fluid pump. At least one remotely operable valve is hydraulically connected to each fluid conduit proximate each wellbore. At least one flow line hydraulically connects each remotely operable valve to each wellbore such that fluid moved through the flow line enters the wellbore. A control unit is disposed proximate the pad and is configured to operate the remotely operable valves.

Abstract: A down hole apparatus includes a first expandable packer and a second expandable packer, where the first expandable packer longitudinally spaced from the second expandable packer. The apparatus further includes an optional expandable bladder disposed at a longitudinal location between the first expandable packer and the second expandable packer. The expandable bladder inflates to displace drilling fluid between the first and second bladder elements. The down hole apparatus can optionally displace drilling fluid between the first and second bladder elements with another fluid. Fluids and/or slurry can be selectively removed using ports between the first and second expandable packers, and optionally placed in sample chambers, or expelled to the bore hole.

Abstract: A pump is disclosed which has a housing with a upper end and a lower end. A conduit is defined through the housing between the upper and the lower ends. The pump includes an impeller within the housing, an inlet from the conduit to the impeller and an outlet from the impeller. Portions of the impeller may be distributed around the conduit. The pump may also include a motor coupled to the impeller. Portions of motor may also be distributed around the conduit. The outlet from the impeller may be independent of the conduit.

Abstract: The claimed invention relates to the downhole systems for extracting various fluids, in particular—for simultaneous extraction out of a number of producing formations. The inventive downhole system comprises a casing pipe and a tubing extending through said casing pipe, between which pipe and tubing formed are separate isolated cavities. Each one of which cavities communicates, via perforations, with a respective producing formation. In each one of the isolated cavities, to the tubing coupled is a hydraulic machine comprised by a motor and pump. The hydraulic machines in different isolated cavities being adapted to be adjusted independently. This system permits simultaneous extraction of fluids out of different producing formations, with independent controlling of such extraction in various formations. The claimed invention also relates to an immersion hydraulic machine used for extracting fluids.

Abstract: Methods and systems are disclosed for well completion and/or production, where an aggregating, agglomerating or conglomerating composition is injected into a producible formation, zone or interval thereof to alter an aggregation or zeta potential of formation surfaces and particulate to increase a maximum sand free production rate.

Abstract: It is an object of the present invention to provide a deriving technique with economy and technical difficulty improved without depending on fuel consumption for a heat source when methane gas is derived from a methane hydrate layer. Warm water is pumped up by a pump from an underground aquifer present 1000 to 1500 m below the seabed, geothermal energy is caused to flow through a permeable layer below a methane hydrate layer, a dissociation boundary surface of an un-dissociated area of the methane hydrate layer is dissociated to generate methane gas, the methane gas is led into a production well from peripheral areas and through a gas inlet screen and caused to rise so that the methane gas is collected on the sea.

Abstract: Systems and methods usable to operate on a plurality of wells through a single main bore are disclosed herein. One or more chamber junctions are provided in fluid communication with one or more conduits within the single main bore. Each chamber junction includes a first orifice communicating with the surface through the main bore, and one or more additional orifices in fluid communication with individual wells of the plurality of wells. Through the chamber junctions, each of the wells can be individually or simultaneously accessed. A bore selection tool having an upper opening and at least one lower opening can be inserted into the chamber junction such that the one or more lower openings align with orifices in the chamber junction, enabling selected individual or multiple wells to be accessed through the bore selection tool while other wells are isolated from the chamber junction.

Abstract: A formation fluid evaluation system (800) interconnected within a tubular string (818) for operation in a wellbore (802) having multiple zones (806, 808, 810). The evaluation system (800) includes a set of straddle packers (820, 822) that is operable to sequentially isolate the multiple zones (806, 808, 810). A test valve (824) is disposed between the straddle packers (820, 822). A fluid unloading assembly (828) is positioned uphole of the straddle packers (820, 822). The fluid unloading assembly (828) is operable to draw fluid (834) from the isolated zone (808) into the tubular string (818) through the test valve (824) in response to the circulation of a drive fluid down the tubular string (818). A formation evaluation instrument (836) is disposed within the tubular string (818) and determines a characteristic of the fluid (834) received from the isolated zone (808).

Abstract: A technique utilizes a tool to selectively shift flow control devices in a variety of well applications. In one application, the tool is delivered downhole via coiled tubing to selectively deliver treatment fluid and shift valves in a combined well treatment and sand control well system. The tool also can be used to carry a jetting device that can be employed to deliver a non-solids fluid to a desired region of a wellbore.

Abstract: A technique enables simultaneous deployment of both treatment equipment and screen assemblies for use during production. The technique utilizes a multi-stage well treatment system deployed in a wellbore to enable treatment of a plurality of sections along the wellbore. Additionally, a plurality of screen assemblies are positioned at the plurality of sections, and each screen assembly comprises a valve to control the flow of fluids through the screen assembly.

Abstract: A down hole apparatus includes a first expandable packer and a second expandable packer, where the first expandable packer longitudinally spaced from the second expandable packer. The apparatus further includes an optional expandable bladder disposed at a longitudinal location between the first expandable packer and the second expandable packer. The expandable bladder inflates to displace drilling fluid between the first and second bladder elements. The down hole apparatus can optionally displace drilling fluid between the first and second bladder elements with another fluid. Fluids and/or slurry can be selectively removed using ports between the first and second expandable packers, and optionally placed in sample chambers, or expelled to the bore hole.

Abstract: A formation fluid evaluation system (100) interconnected within a tubular string (118) for operation in a wellbore (102) having multiple zones (106, 108, 110). The evaluation system (100) includes a pair of straddle packers (120, 122) that isolates one zone (108) of the multiple zones (106, 108, 110), a test valve (124) disposed between the straddle packers (120, 122) and an upper packer (126) positioned uphole of the uppermost zone (106) of the multiple zones (106, 108, 110). A fluid lift assembly (128) is position uphole of the upper packer (126). The fluid lift assembly (128) is operable to draw fluid (134) from the isolated zone (108) into the tubular string (118) through the test valve (124). A formation evaluation instrument (136) is disposed within the tubular string (118) and determines a characteristic of the fluid (134) received from the isolated zone (108).

Abstract: Methods and devices are provided for treating multiple interval well bores. More particularly, an isolation assembly may be used to allow for zonal isolation to allow treatment of selected productive or previously producing intervals in multiple interval well bores. One example of a method for treating a multiple interval well bore includes the steps of: introducing an isolation assembly to a well bore, the isolation assembly comprising a liner, one or more sleeves and a plurality of swellable packers, wherein the sleeves and swellable packers are disposed about the liner; deploying a shifting tool inside the liner, where the sleeves are configured so as to provide open, closed and open to screen positions when actuated by the shifting tool. An open position allows for treatment of the well bore while an open to screen position allows for receiving fluid from the well bore. A closed position re-establishes zonal isolation.

Abstract: An apparatus uses at least one injection pump (9) positioned in proximity to an undersea petroleum well (10) to provide hydraulic fluid for hydraulic pumping equipment positioned in the bottom of the well, in order to cause a flow of produced oil. The injection pump (9) is able to suction hydraulic fluid from a tank of hydraulic fluid (8) positioned on the deck of a service unit (40). Alternatively, injection pump (9) is able to utilize water from the sea as a hydraulic fluid. Alternatively, the injection pump (9) may be integral with a Christmas tree manifold (6) or may be installed in an auxiliary well (90) in order that it's external portion does not enter into contact with seawater.

Abstract: A method and apparatus for improving the performance of production-injection wells whereby a pump (35), driven by a hydraulic turbine (32) sharing the same central shaft (33, 34), is run and set in an oil-producing well. The oil enters the annulus of the well from the production zone and is induced into the pump to be forced to the wellhead; the injection water is forced down the wellbore to drive the turbine whereafter the injection water exhausts through the pump to be injected into the underlying aquifer thereby providing additional pressure support to the producing zone.

Abstract: The present invention may be used as an apparatus and method for extracting oil from a hydrocarbon material bearing formation. A well may be positioned in a formation having hydrocarbon material with a well casing extending into the formation that may have a number of apertures formed in the casing wall adjacent to multiple zones of interest in the formation. A hydrostatic separator may have a specific gravity approximately equal to an oil that may be extracted from the formation and may be positioned and anchored in the well casing above and adjacent to an upper level of said formation. An extraction pipe may be disposed interior to the well casing with a lower end positioned above and adjacent a separator top and may have an upper end attached at a well head. The well head may be in fluid communication with an oil storage unit and in communication with a pressure application apparatus.

Abstract: A system and method for pumping water from a wellbore to a surface location using an improved motorless water pump. The improved motorless water pump is a downhole hydraulic ram pump powered by the renewable energy source, groundwater. As water falls down a wellbore from an upper strata to a lower strata, the conversion of the water's momentum to energy is used to compress air captured in the ram's pressure chamber. The compressed air contained in the pressure chamber pushes down on the water captured in the pressure chamber causing the water to exit the pressure chamber through an outlet and into tubing. The water in the tubing is responsive to the pressure in the chamber rising to the surface.

Abstract: The present invention provides a tool assembly for use in field applications to monitor at least one condition in a well or other hole. The tool assembly may include a computing unit for directing operation of the tool assembly and may be sized to be operable in a hole having a diameter of 1 inch, and in some cases even smaller. In one aspect, the tool assembly is designed to significantly conserve power. Sensor readings may be taken at different schedules to conserve power when frequent readings are not required. Also, internal electronics of the tool assembly can be operated at a low voltage. In one aspect, the tool assembly is assemblable by simple rotatable engagement of the components, with electrical interconnections being made automatically by the rotatable engagement without keying of components. In another aspect, the tool assembly is networkable with other like tool assemblies and monitorable from a central location.