72results about "Constructions" patented technology

A method for analyzing formation fluid in a subterranean formation is disclosed, wherein the method includes the steps of: adding a scavenger compound to an analytical reagent to form a reagent solution; collecting an amount of formation fluid into a formation tester, wherein the formation tester includes at least one fluids analyzer comprising at least one probe, at least one flow line, at least one reagent container, and at least one spectral analyzer, wherein the fluids analyzer is configured such that the collected formation fluid is fed through the at least one flow line to the at least one spectral analyzer; mixing an amount of the collected formation fluid with an amount of the reagent solution to form a mixture; and analyzing the mixture downhole.

A windows-breaking emergency escape device which comprises a main body, a hammer and a supplementary power apparatus, wherein the hammer and the supplementary power apparatus are installed on the main body, the front end of the hammer extrudes from the surface of the main body, the improvement comprising that the supplementary power apparatus will reserve enough power in advance by less strength of a user—such as a female user, and to release the reserved power to drive the hammer to break the car window when a car accident happened, moreover, the main body of the device of the present invention further comprises a groove containing a cutter, the width of the groove is smaller than that of a child's finger so that it is safe for the user from being wounded due to carelessness.

A longitudinally segmented acoustic transducer for a cement bond logging (CBL) tool having a plurality of adjoining PZT ring-like segments driven synchronously in parallel by one or more pulses and caused to vibrate in an anti-resonant mode, substantially below the resonant frequency of an individual segment when used in a transmitting application. When used in a receiving application, each of the plurality of transducer rings are caused to vibrate by acoustic signals detected by the transducer array, also in an anti-resonant mode. High speed digital signal processing enables on-depth, high quality data for all azimuths at each depth to be obtained, processed, normalized and either sent to the surface in real time for each 20 Hz firing cycle, as the CBL tool is pulled toward the surface, or stored in a memory module in digital form for later retrieval. Built-in calibration factors used for normalizing the output signals to the operating conditions of use may be accessed at any time.

The invention discloses a pressure and the output self-adaptation measurement and control system of an electric pump producing well, comprising an underground pressure sensor (1), a communication cable (2), a multi-functional acquisition instrument (3), a control cabinet (4), a power cable (6) and an electric submersible pump (7), wherein the output end of the underground pressure sensor (1)is connected with the input end of the multi-functional acquisition instrument (3) through the communication cable (2); the output end of the multi-functional acquisition instrument (3) is connected with the input end of a frequency converter (5) inside the control cabinet (4); and the output end of the frequency converter (5) is connected with the input end of the electric submersible pump (7) through the power cable (6). The invention forms the self-adaptation close-loop measurement and control system for sensing, transmitting, processing and controlling underground information, thereby realizing the real-time dynamic monitoring of underground parameters, ensuring the balance of the output quantity and the produced quantity of an oil well, ensuring the normal operation of the electric submersible pump (7) and achieving the purpose of the productivity maximization of the oil well.

The invention discloses a method for constructing horizontal salt rock dissolving cavity reservoirs, and belongs to categories of salt deposit water dissolving mining and salt rock dissolving cavity controlling, dissolving, constructing and utilizing. The method for constructing the horizontal salt rock dissolving cavity reservoirs has the advantages that the quick horizontal salt rock dissolving cavity reservoirs which are high in efficiency and capacity and have shapes easy to control can be constructed by means of directional drilling and cyclic retreating type single-well convection dissolving; merits of a single-well convection process and merits of double-well directional butting communication convection process are combined with one another, fresh water is injected into salt rock deposits by patterned hole jet flow sections 3 on the side walls of blind ends of center pipes, brine which is generated after salt rock is dissolved is drained out of earth surfaces from annular spaces between the center pipes and middle pipes, cavities are constructed by means of periodic sectioned retreating type dissolving, and large horizontal dissolving cavities can be constructed by means of single-well convection; the lengths of horizontal wells can reach 800-1000m, the constructed horizontal salt rock dissolving cavity reservoirs are high in capacity, and the method is a perfect method for quickly constructing the large horizontal salt rock dissolving cavity reservoirs by means of dissolving.

A helical displacement well with preassembled segments includes a preassembled shaft-forming penetrator tube including helical plates mounted to its exterior that may be rotated to propel the casing into the ground. A hydraulic drill motor rotates the penetrator tube and as it moves deeper into the ground. Extension tubes may be added to and coupled to the penetrator tube. A hydraulic drill motor is attached to the upper end of the extension tubes in order to continue the rotation of the assembled helical displacement well. The filter screen and the piping are installed concurrently with the addition of the extension tubes at the surface of the ground.

The invention relates to a downhole working condition diagnosis method for a sucker rod pumping well based on valve working points. The method comprises: acquiring K+1 sucker rod pumping unit ground dynamometer cards, the first K dynamometer cards being corresponding to N kinds of working conditions, and the last one being a dynamometer card of a to-be-diagnosed working condition; performing normalization processing on the dynamometer card; using a gravity center division method to divide the normalized dynamometer cards into an upper left region, an upper right region, a lower right region, and a lower left region; extracting four working points of valve and seven geometric characteristics of the ground dynamometer cards; using the seven geometric characteristics of the sucker rod pumping well ground dynamometer cards as input, establishing a continuous hidden Markov working condition diagnosis model, describing mapping relations of working points and dynamometer card characteristics and downhole working conditions of the sucker rod pumping well, to realize working condition diagnosis. The method can comprehensively and accurately show characteristics of various downhole working conditions, and a working condition real-time diagnosis model is established by using the characteristics, so that production safety and high efficiency of sucker rod pumping well are improved.

The invention provides sand beach sanitation vehicle and sand beach sanitation equipment and belongs to the field of environmental sanitation. The sand beach sanitation vehicle comprises a rack, a running device, a sand turnover device, a screening device and a garbage can, wherein the sand turnover device comprises a sand digging mechanism and a sand conveying mechanism; sand leakage holes are formed in the sand turnover device and the sand digging mechanism; the sand conveying mechanism is used for conveying sand into the screening device; the screening device comprises a sand leakage area and an output end; the output end of the screening device is connected with the garbage can; the sand beach sanitation equipment comprises a housing and the sand beach sanitation vehicle; and the housing is mounted on the rack. According to the sand beach sanitation vehicle, the sand turnover device comprises the sand digging device and the sand conveying device, so that the most sand dug can be conveyed into the screening device; the sand leakage holes are formed in the sand digging device and the sand conveying device, the most sand is removed when the sand containing waste is conveyed into the screening device; and the sieving efficiency of the screening device can be improved.

Apparatus, systems, and methods may operate to transmit energy to a nanofiber sampling coil and/or a nanofiber reference coil. Further activity may include receiving the energy as modified by evanescent interaction with a sampled material located proximate to the sampling coil and/or as modified by propagation through the reference coil, and comparing the energy modified by evanescent interaction with the energy modified by propagation through the reference coil to determine a spectroscopic property of the sampled material. Additional apparatus, systems, and methods, including the use of nanofibers and fluorescence induced by evanescent radiation to conduct spectroscopic analysis, are disclosed.

The invention provides a monitoring system for a water injection state of each layer of a multi-layer water injection well. The system comprises a ground control main machine and a sleeve, wherein a carrier steel pipe cable, cable passing packers and multiple underground water distribution devices are arranged in an inner cavity of the sleeve; the multiple underground water distribution devices are connected with the carrier steel pipe cable and an oil pipe in the sleeve; each underground water distribution device is corresponding to one distribution stratum, and is used for acquiring injection state data of the corresponding distribution stratum in real time; the cable passing packers are connected with the oil pipe, and are packed at the two ends of each underground water distribution device, so that a sealed water injection cavity is formed at each place where an underground water distribution device is situated; the carrier steel pipe cable is used for transmitting the injection state data of each distribution stratum acquired by each underground water distribution device to the ground control main machine in real time; and the ground control main machine is used for storing the injection state data of each distribution stratum. The system can monitor the injection state data of the water injection well in real time for a long time, and prevents the scene monitoring.

Managing operation of a sealing element is described. In some aspects, failure of the sealing element of a pressure drilling system may be predicted. Deformation of the sealing element as a tool joint is pulled through the sealing element may be detected and tracked to determine if a deformation pattern of sealing element changes. Responses of sealing element due to one or more of stress, strain, temperature, mechanical load, and pressure using a network of sensors around sealing element can be detected. Responses may be tracked over time. Detected responses are compared to tracked responses to identify changes in the symmetry of responses over time or changes in magnitude of responses over time. Changes are associated with fractures occurring within sealing element. A remaining life of sealing element is predicted based on the changes and replacement may be scheduled based at least in part on the predicted remaining life.

A drilling machine comprises a power motor unit coupled with a spiral rod and a drill bit shaft and assembled in a mounting frame using a positioning disc. The arbor of power motor mounted on the mounting frame directly drives the drill bit shaft. The spiral rod is disposed at the periphery of drill bit shaft. A plurality of cutters are arranged between the drill bit and spiral rod at the outer perimeter of drill bit with a hollow guide notch above the cutters. The spiral rod is mounted in the positioning disc and engage a plurality of planet gears. When the arbor of power motor turns, it directly drives the drill bit shaft, drives the fast turning of drive gear at the periphery of drill bit shaft, resulting in different turning speeds with the drill bit shaft turning slowly and the spiral rod turning fast.

A sensing and data acquisition system may provide a sensing assembly including a signal conditioner to receive an electrical signal from a sensor affixed onto an asset and supply an encoded digital representation of a sensed parameter. An acoustic modem may be connected to the signal conditioner to receive the encoded digital representation of the sensed parameter and transmit an acoustic signal based on the encoded digital representation of the sensed parameter. A data acquisition line may be proximate to the asset and may be non-contactively coupled to the sensing assembly. The data acquisition line may include an optical fiber acoustically coupled to the acoustic modem and responsive to the encoded digital representation of the sensed parameter transmitted by the modem to effect an optical change in an acoustically-responsive portion of the fiber. The optical change may be measurable to detect the encoded digital representation of the sensed asset parameter.

The invention discloses a diamond drill bit suitable for hard stratum drilling, and belongs to the field of drilling. The drill bit comprises a drill bit body, a plurality of blades which extend fromthe drill bit body or are fixed to the drill bit body, water holes or nozzles. The blades are provided with scraping cutting teeth. At least one blade extends to form a strengthening base at the circumferential position of the drill bit, wherein the strengthening bases are provided with scraping cutting teeth. According to the technology, local strengthening of a cutting structure can be achieved,the hard stratum drilling work life is prolonged, and meanwhile premature failures of the cutting teeth due to vibration in the drill bit hard stratum drilling process can be reduced.

A whipstock/billet anchor can be set in open hole such that one or more slips initially shift laterally near the lower end or below the whipstock/billet while the upper end reacts and gets pushed against the wellbore. Then with the top of the whipstock/billet against the wellbore another slip gets a bite to secure the whipstock/billet in a manner where the wellbore gives it some support near its upper end as a drill bit engages the whipstock/billet to make a lateral. Open and cased hole application is contemplated. The anchor also allows running in and supporting a tubular string below and a tool above with the further option of cocking the tool for better support before securing it.

The invention provides a high-temperature miniaturized resonant gyroscope. The gyroscope comprises a harmonic oscillator, a circuit board, piezoelectric elements, a supporting base, a shell and binding posts, wherein the harmonic oscillator is arranged in the shell and connected with the supporting base, and the piezoelectric elements are connected with the binding posts through a metal conductor.Key process points of internal elements of the gyroscope are fixedly connected by adopting a high-temperature material and a high-temperature process, and the gyroscope is a small-size gyroscope capable of working at a high temperature. The invention also provides an inertial navigation system. The system comprises a three-axis gyroscope, a three-axis accelerometer and a shock absorber, wherein the gyroscope is fixedly connected with the shock absorber, and the gyroscope adopts the high-temperature resonant gyroscope. The invention further provides a drilling measurement system and a drillingmeasurement method. The system has the environmental adaptability under high temperature, strong vibration and large impact and has the advantage of small volume of drilling measurement. The method is used in the measurement system, and underground position measurement can be accurately carried out.

The invention discloses an engineering drilling device, and relates to the field of drilling devices in grouting construction. The engineering drilling device comprises a tamping machine head, a drill stem and a drill bit. A connecting base is installed below the tamping machine head, the drill stem is connected with the connecting base through a vibrating head, and the drill bit is installed at the tail end of the drill stem and connected with the drill stem in a threaded mode. The engineering drilling device further comprises a buffer device. The buffer device is arranged on the drill stem in a sleeved mode and located between the drill bit and the connecting base and comprises a fixing plate, a spring and a locating plate. The fixing plate is connected with the drill stem in a threaded mode, the spring is arranged below the fixing plate, and the lower portion of the spring is connected with the locating plate. The engineering drilling device is simple in structure, high in work efficiency and good in economic benefit.

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.

The invention discloses a multifunctional drilling rig for a tunnel. The multifunctional drilling rig comprises a vehicle frame assembly, an operating table assembly, a variable amplitude mechanism, adrilling mast assembly, an engine system and a motor system; the drilling rig adopts a double-power system which comprises the engine system and the motor system; the operating table assembly is located on the vehicle frame assembly; and the drilling mast assembly adopts a feeding mode of a motor and a chain and is mounted on the vehicle frame assembly through the variable amplitude mechanism, the variable amplitude mechanism is provided with a rotating disc, the rotating disc can rotate, thus left-right rotating of the variable amplitude mechanism is achieved, and the drilling mast assemblyis driven to rotate leftwards and rightwards.

A DHD hammer that can exhaust working air volumes partially through a proximal end of the DHD hammer's actuator assembly includes a drive chamber, a return chamber, and a backhead that includes exhaust ports. Working air volumes from the drive chamber are exhausted through the backhead while working air volumes from the drive chamber are exhausted primarily through a drill bit.

The invention discloses a drilling tool of a rotary drilling rig. The drilling tool comprises a top plate (1) and a connecting block (2) connected with the top plate (1); the top plate (1) is connected with a first cylinder (3), a boring mud inlet (31) is formed in the first cylinder (3), and an openable bottom plate (4) is connected onto a bottom wall of the first cylinder (3); the top plate (1) is further connected with a second cylinder (5) sleeved outside the periphery of the first cylinder (1), the diameter of the second cylinder (5) is more than that of the first cylinder (3), and the bottom of the second cylinder (5) is provided with first drilling teeth (51); and the axial length of the first cylinder (3) is more than that of the second cylinder (5). For the structural design of the drilling tool, on the premise of the ensuring the drilling efficiency, the drilling tool integrates the functions of loop drilling and boring mud salvaging into a whole, so that the construction efficiency can be obviously increased finally. In addition, the invention further discloses a rotary drilling rig comprising the drilling tool.

The invention provides a walking beam type pumping unit working system combined operation method and belongs to the field of oil production engineering. According to the theoretical whole pumping number in a cycle, the crank whole-cycle operation frequency, the used time of operation of each whole cycle, the crank non-whole-cycle swabbing operation frequency, the swabbing operation polished rod stroke of each non-whole cycle, the used time of swabbing operation of each non-whole cycle, the crank non-whole-cycle swabbing-free operation frequency, the used time of swabbing operation of each non-whole cycle and the sequence of crank whole-cycle operation, crank non-whole-cycle swabbing operation and crank non-whole-cycle swabbing-free operation are distributed. According to walking beam type pumping unit working system combined operation method, the whole-cycle jig frequency does not need to be decreased, solving of the problems that the leak rate of a plunger is large and the driving efficiency of a motor is low is facilitated, the requirement of starting up for operation is avoided, and consumption, of the manpower, materials and financial resources, caused by the fact that people go to a construction site to conduct starting-up for operation is reduced disadvantageously; and meanwhile the safe warning requirement can further be met, a crank is made to swing obviously, and the swabbing movement requirement for sand jamming, wax deposit, frozen blocking and laying problems is taken into consideration.

Methods for correcting for non-centred tool geometry in image data obtained by a conduit inspection tool are disclosed. Embodiments of the invention apply to inspection tools with one or multiple sideview cameras and to inspection tools with downview cameras. The methods include obtaining at least two overlapping images of the internal surface of the conduit using the tool, identifying one or more features common to at least a pair of the overlapping images, determining, based on the positions of the or each common feature, the position of the tool with respect to a longitudinal axis of the conduit, determining a correction function based on the position of the tool and applying the correction function to the image data. Methods for determining the dimension of a feature of interest on the internal surface of the conduit are also disclosed.

The invention relates to the technology of natural gas extraction, in particular to a device and method for exploiting seafloor combustible ice. The device comprises a sea surface operation platform and is characterized in that a traction rope is connected to the bottom of the sea surface operation platform, a ceiling curtain is connected to the tail end of the traction rope, and a supporting structure is arranged in the curtain; a bearing column is connected to the supporting structure and vertically arranged on an exploitation operation area, the ceiling curtain covers the upper portion of the exploitation operation area, and the ceiling curtain and the bearing column form a closed space. The device has the advantages that leakage of volatile combustible ice gas is avoided, the possibility of mining area collapse is reduced, and the device is beneficial to guarantee of ecological balance of the earth and life safety of operation personnel.

A combination blowout preventer and recovery device, comprising a lower part that is placed over a well pipe, and an upper part having a channel and plates to close it. The large end of the valve is placed over a well pipe through which fluid is flowing out. The small end of the valve is connected to the channel. A sleeve connected to the return pipe is placed over the well pipe. Positioning rings are attached to a high pressure pipe, that can fit inside the well pipe. Grinders remove matter from the well pipe. Pistons are attached to each of the plates. The pistons propel the plates across the channel to seal it off and stop the leak. Flanges may limit the pistons' movement. Gears can engage teeth on the pistons to withdraw the plates from the channel, to reopen it and allow the flow of fluid to resume.