58results about "Survey" patented technology

The invention relates to a screw drilling tool, a vertical drilling tool testing method and well inclination simulation testing equipment, and relate to the technical field of petroleum equipment. Thetesting equipment comprises a main bracket, a push-pull device and an angle measuring device, wherein the first end of a tested tool is suspended and pivoted to the main bracket, one end of the push-pull device is connected with the main bracket, the other end of the push-pull device is connected with the tested tool, and the push-pull device is used for pushing or pulling the tested tool to makethe tested tool incline; and the angle measuring device is connected with the tested tool and used for measuring the offset distance of the second end of the tested tool. The testing method includesthe following steps that the first end of the tested tools is suspended and pivoted to the main bracket; the second end of the tested tool is pushed or pulled to make the tested tool incline; the offset distance of the second end of the tested tool is measured; and according to the offset distance, the inclination angle of the tested tool is calculated. By means of the testing equipment and the testing method, the tested tool can incline at different angles, and the working condition that the tested tool deviates from the vertical plane due to inclination of a well wall is simulated.

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.

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 relates to an experiment device for evaporating scaling risks of a water production gas well shaft and a method. The experiment device comprises a shaft simulation and heat-preservationsystem and a fluid injection and collection system, wherein the shaft simulation and heat-preservation system is used for simulating a shaft in a stratum, used for providing a flowing channel for gas-water two-phase fluids, and used for keeping the shaft at a stratum temperature; the fluid injection and collection system is used for injecting water and gases into the stratum and used for collecting produced stratum water. By adopting the experiment device, gas-water two-phase flowing in the shaft and a dynamic scaling process of stratum water under different gas-water ratio conditions in the shaft can be simulated, scale amounts on the wall of a metallic tube can be tested in different sections, the morphology of scaling can be observed, blocking situations can be judged, the scale amountsand the scale layer thickness cross sections along the wall of the metallic tube can be drawn, total scale amounts, adhesion scale amounts, parts retained in the metallic tube, of unattached scale, and stratum water production parts of unattached scale can be tested, and allocation ratios of scale substances of different modes in the shaft can be analyzed; by adopting the experiment device, not only scaling and blocking risks in the shaft, but also anti-scaling effects of an anti-scaling agent, can be evaluated; the experiment device is simple in equipment, convenient to operate and high in feasibility.

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.

The present invention is a method and apparatus used to transmit information to the surface from a subsurface location during the process of drilling a bore hole comprising a pressure pulse generator or “pulser” coupled to a sensor package, a controller, an active electromagnetic system for subsurface collision avoidance, and a battery power source all of which reside inside a short section of drill pipe close to the bit at the bottom of the bore hole being drilled wherein the apparatus or “MWD Tool” can be commanded from the surface to make a measurement of desired parameters and transmit this information to the surface by encoding data in pressure pulses generated by a pulser valve that includes a stator and a rotor which may be open and closed to create pressure pulses.

The invention discloses a well-ground seismic data joint acquisition system based on distributed optical fiber acoustic wave sensing and a well drive data processing method. In order to solve the problems of inconsistent energy, inconsistent frequency spectrum and incompletely consistent coupling between a seismic source and the ground caused by repeated excitation of each seismic source point when seismic data in a well and seismic data on the ground are respectively acquired in the prior art, the invention discloses an in-well-ground seismic data combined three-dimensional acquisition systemformed by a distributed optical fiber sound wave sensing seismic data acquisition unit and a ground seismic data acquisition unit. In-well-ground combined three-dimensional exploration is carried out, ground and in-well seismic data are synchronously collected, the high-density, high-benefit, high-resolution and low-cost well-ground combined three-dimensional seismic exploration technology is achieved, and oil and gas resource exploration and comprehensive evaluation are carried out.

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.

A measurement-while-drilling servo-actuator for use in mud-pulse telemetry, which determines linear position of a poppet valve therein without counting revolutions of a stepper motor which positions said poppet valve. A sensor senses a magnetic field intensity value, or an inductance value, which is proportional to the position of the poppet valve relative to the sensor. A look-up table of reference outputs corresponding to known position of the poppet valve is used to determine the position of the poppet valve. A method of determining a position of a poppet valve in a mud pulser is further disclosed.

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.

A secondary hole sealing and pressure measuring device based on expanding agents adopts a high-pressure independent water bag for water injection and pressure bearing during hole sealing. Water drainage pressure relief can be conducted when equipment is dismounted, and the equipment can be recycled. Turnover parts at the two ends of a high-pressure independent expansion bag are matched with limiting chains and limiting boards for two-end hole sealing, one-time two-end hole sealing fixation of an independent annular grouting cavity is formed, after slurry is grouted for primary hole sealing, water is injected into the high-pressure independent expansion bag, the expanding agents come across water to expand, the two-end hole sealing effect of the device is further improved, the high-pressure independent expansion bag deforms vertically axially, stress for slurry secondary hole sealing is provided, the slurry is pressed into cracks in surrounding rocks, and secondary hole sealing is finished.

The spring type Y-shaped well joint includes an oil producing and well testing channel, a well testing channel and an oil pumping electric pump channel forming a Y-shaped structure. In the joint between the oil pumping electric pump channel and the well testing channel, there is one sealing device, which seals the well testing channel while opening the oil pumping electric pump channel when the oil well is in its production state, and seals the oil pumping electric pump channel while opening the well testing channel when the oil well is in its production stopping state. The present invention is superior to available technology, and has simplified operation process.

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 discloses a real-time testing and wireless transmission device and method for a sucker-rod pump indicator diagram of a pumping well. The real-time testing and wireless transmission device comprises a battery pack, a magnetic acoustic energy converter, a system power supply, a displacement sensor, a circuit board, a load sensor, a shell and a ground controller, wherein the battery pack, the magnetic acoustic energy converter, the system power supply, the displacement sensor, the circuit board and the load sensor are arranged in the shell, the ground controller is arranged on the ground of the pumping well and is close to a wellhead, the battery pack is electrically connected with the system power supply, the system power supply is electrically connected with the displacement sensor and the load sensor, the displacement sensor and the load sensor are respectively connected with the circuit board, the circuit board is electrically connected with the magnetic acoustic energy converter, and the magnetic acoustic energy converter is in wireless connection with the ground controller.

The invention provides a real-time interval transit time extraction method based on particle swarm optimization, mainly to solve the problems of large amount of operation and low precision in the caseof interval transit time calculation by the traditional STC algorithm. The realization process comprises steps: (1) ranges of first wave arrival time and interval transit time of a certain mode waveare given; (2) a population is initialized; (3) the fitness value of a particle is calculated; (4) the historical highest fitness value of the particle and the global historical highest fitness valueof the population are updated; (5) the position of the particle is updated; and (6) whether the algorithm meets an end condition is judged, and if yes, iteration is stopped, or otherwise, the step (3)is carried out. The particle swarm optimization algorithm based on population random search is adopted for interval transit time extraction, traversal search of time and slowness is not needed, the algorithm is the global optimization method, the amount of operation of a program is greatly reduced, and the formation interval transit time can be quickly and accurately extracted.

The invention discloses a controlled ultra-short radius guiding well drilling system and method, and relates to the technical field of well drilling, the system comprises a drilling machine, a conventional drill rod, a flexible drill rod structure, a data relay transmission short section structure, a flexible motor structure, a measurement-while-drilling short section structure and a drill bit which are connected in sequence; the measurement-while-drilling short section structure is used for measuring well deviation and azimuth information; the data relay transmission short section structure is used for receiving well deviation and azimuth information measured by the measurement-while-drilling short section structure and sending the well deviation and azimuth information to a drilling machine; the flexible drill rod structure comprises at least one flexible drill rod short section, and the flexible motor structure comprises at least one flexible motor. The well drilling method can be used for directional well drilling and composite well drilling. According to the method, the purposes of well track control and drilling speed increasing and efficiency increasing of the ultra-short radius directional well are achieved.

The invention relates to a weighing method three-phase metering device and a metering method thereof. The weighing method three-phase metering device and the metering method thereof are mainly used for solving the problem that an existing metering device only conduct gas-liquid two-phase metering on an oil well and cannot reflect the real components of single well oil gas water. The weighing method three-phase metering device is characterized in that the upper portion of a weighing separator (2) is connected with a liquid inlet pipeline; the liquid inlet pipeline is connected with an electric three-way valve (1), the weighing separator is located on a gravity sensor (12), and a tank bottom pipeline is connected with an oil water detection instrument (4) and a liquid discharge electric valve (5). The metering method comprises the steps that an oil-water mixture enters the weighing separator and is deposited and layered inside the weighing separator, and the total weight of the mixture is obtained; and when the layered mixture is discharged from the weighing separator, the weight variation and an oil-water current value are collected, a weight-oil-water current changing curve is obtained, and accordingly the water weight and the oil weight are obtained, namely the water content of the mixture is obtained. The weighing method three-phase metering device can accurately meter data of the liquid production capacity, gas production capacity and the water content of an oil well.

The invention discloses an intelligent maintenance device for heavy oil and high wax-bearing oil wells. The intelligent maintenance device comprises a pumping unit and a pumping unit motor, the pumping unit motor is installed on the middle part of the pumping unit, one side of the pumping unit is fixedly provided with a pumping unit motor control box, one side of the pumping unit is fixedly provided with a pumping rod, the middle part of the pumping rod is fixedly provided with a pumping rod wireless load sensor, the lower side of the pumping rod is provided with an oil well, one side of the oil well is provided with an agentia pipeline transportation and mixing mechanism, and the inner part of the pumping unit motor control box is successively fixedly provided with a pumping unit wirelesscurrent sensor, and a pumping unit motor speed regulating drive module. According to the intelligent maintenance device for the heavy oil and the high wax-bearing oil wells, working conditions of theoil wells being maintained can be tracked in real time, automatic maintenance can be conducted in real time according to the working conditions of the oil wells, and the problems of high maintenancelabor intensity of manual dosing, low efficiency of agentia, high hot cleaning cost of a boiler car, and secondary pollution of formation, oil well pump blocked by wax, and short period of pump inspection are solved.

The invention discloses a horizontal well segmented water-injection process pipe column and a distribution method. The horizontal well segmented water-injection process pipe column comprises two or more water distributors, and a pressure-maintaining expansion type packer is arranged between every two water distributors; a mechanical compression type packer is arranged between a safety joint and the water distributor facing the front end of an oil pipe; each water distributor is internally provided with a main control unit, a wireless communication module, a measuring device, a flow adjusting device and a power source; the measuring devices are used for measuring the water injection pressure of water injection flowmeters; the main control units are used for controlling the flow adjusting devices to adjust the open degrees of water nozzles and used for recognizing instructions sent by a ground control terminal; and the wireless communication modules are used for communicating with the outside. The downhole flow is tested by the measuring devices of the water distributors, the downhole flow is distributed through control of the main control units of the water distributors over the flow adjusting devices, thus distribution construction for layered injection well steel wire or cable testing in the prior art is omitted, a large amount of manpower is saved, and the testing efficiencyis effectively improved.

The invention discloses a method and a device for detecting flow of carbon dioxide injected into an oil field. A detection instrument used by the method and the device is provided with a gas inlet and a gas outlet; a flow concentration umbrella is arranged at the excircle of the instrument between the gas inlet and the gas outlet; a roots flowmeter is arranged in the instrument between the gas inlet and the gas outlet. When the flow is detected, a gas passage outside an oil pipe is closed by the confluent-liquid umbrella, so that gas can be only exhausted from the gas outlet below the flow concentration umbrella by the gas inlet above the flow concentration umbrella after passing through the roots flowmeter; and according to the roots rotating speed of the roots flowmeter, apparent flux of a current position is measured. According to the invention, through cooperation of the flow concentration umbrella and the roots flowmeter, the problem of testing a layered filling rate of carbon dioxide in a supercritical state can be solved and the technological base is provided for realizing layered testing and regulation of a well filled with carbon dioxide.

The invention discloses a method and a device for calibrating a while-drilling remote detection electromagnetic wave resistivity logging instrument. The device comprises two elliptical discs, a fixingframe, a limiting rod, a sleeve and a fastening handle, wherein the two elliptical discs are connected and fixed by glass fiber reinforced plastics or other non-metal materials; two dials are elliptical and are made of the glass fiber reinforced plastics or other non-metal materials; the two dials are limited by a glass fiber reinforced plastic connecting rod; a middle connecting rod hole has a wire passing effect; the fixing frame is divided into an upper part and a lower part and is made of super-hard aluminum; the dials are fixed in the middle by bolts; a polytetrafluoroethylene lining isembedded in the fixing frame; a locking device is arranged at the bottom of a lower dial frame to prevent the dial frame from rotating and falling off; and full verification is performed in the designand debugging process of an instrument prototype. The device is easy to manufacture and operate; and by externally connecting a resistor and a capacitor, the complex impedance of a dial ring can be simply and accurately adjusted, so that the instrument is convenient to debug, the standard of measurement parameters is convenient to establish, and the instrument can accurately obtain required scalecoefficients of each parameter.