125 results about "Measurement while drilling" patented technology

The invention relates to an underground multi-mode overflow monitoring system and method, and belongs to the technical field of well drilling monitoring, the system is arranged in an axial through hole of a drill collar body, and the system comprises a central fluid channel assembly comprising a Venturi tube section communicated with the through hole; the annular sensor array assembly comprises a barrel which is arranged on the outer side of the Venturi tube section in a sleeving mode and attached to the inner wall of the drill collar body, an annular flow channel is formed in the position, corresponding to a high-pressure area of the Venturi tube section, in the barrel, one end of the annular flow channel is closed, and the other end of the annular flow channel is a Venturi drainage ejector communicated to the high-pressure area of the Venturi tube section; the annular flow channel is provided with a plurality of drainage channels, and the annular flow channel is provided with a multi-mode sensor along the circumferential inner wall of the annular flow channel; a plurality of sampling holes communicated with the drainage channel are formed in the drill collar body; the system further comprises a processor, all the sensors are connected with the processor, and the processor communicates with the measurement-while-drilling system. The method and the device have the effect of improving the stability of monitoring work in a complex drilling environment.

The invention discloses a real-time guiding control system and method for a borehole track of a wireless measurement-while-drilling instrument, and belongs to the technical field of drilling engineering.The real-time guiding control method comprises the steps that the wireless measurement-while-drilling instrument collects borehole attitude data and environmental factor data, and fusion data is generated; based on the fusion data and the historical guiding effect data, generating adaptive control parameters through an adaptive learning mechanism; performing channel adaptation processing and dynamic compensation on the adaptive control parameter to generate a compensation control signal; the compensation control signal is used for controlling the operation posture of the guiding tool, the deviation between the actual well track data and preset target well track data is calculated, and track deviation data is generated; and learning parameters of the adaptive learning mechanism are updated based on the trajectory deviation data. Multi-source data fusion perception, intelligent decision based on a self-adaptive learning mechanism, dynamic compensation communication of channel adaptation and closed-loop feedback updating based on trajectory deviation are adopted, and real-time guiding control over the well trajectory can be achieved.

The invention discloses a digital twinning-based intelligent control system and method for butt-joint drilling of a horizontal well penetrating through a goaf coal pillar, and relates to the technical field of drilling and coal mine safety. The system comprises a data acquisition and transmission module for acquiring and transmitting multi-source heterogeneous data of a to-be-drilled goaf; the digital twinning module constructs a digital twinning model; the while-drilling perception and dynamic risk assessment module is used for acquiring and processing while-drilling measurement data and fusing the data with digital twinborn model data to generate a visual dynamic risk field; the intelligent decision and control module is used for generating a safe drilling path and a drilling parameter control instruction; the execution and well control module executes the control instruction and regulates and controls drilling equipment and a well control device; and the man-machine interaction module is used for displaying the risk information and realizing man-machine According to the method, the conversion of drilling safety from passive response to active prediction and intelligent control is realized, and the safety and the success rate of drilling operation penetrating through the goaf coal pillar are improved.

The invention relates to the technical field of underground measurement-while-drilling data transmission, in particular to an electromagnetic wave mode-while-drilling conversion relay transmission method and system. The method comprises the following steps: acquiring measurement data and transmitting a signal through a double-insulation controlled dipole transmitting structure; receiving the measurement data signal through a repeater arranged along the drill string; determining an equivalent emission impedance characteristic by outputting a detection signal to an external medium and collecting an output end voltage and a current effective value; receiving a propagable guidance response formed by the measurement data signal; judging the type of the current well section based on the equivalent emission impedance characteristic and the propagable guide response; switching to a casing guide injection path or an open hole coupling injection path is selected according to the type of the well section; and carrying out relay forwarding on the signal based on the corresponding emission parameter group. Intelligent identification and conversion of signal modes are achieved, the relay transmission success rate and stability of cased well measurement data signals are improved, the link building distance is shortened, and power consumption and risks caused by working condition uncertainty are reduced.

The present application belongs to the technical field of oil and gas drilling equipment, and particularly relates to a double-period QPSK continuous wave signal detection method, aiming at solving the problem that the prior art cannot accurately detect and identify drilling fluid pulse signals. The method comprises: collecting a drilling fluid continuous pressure wave QPSK output signal as a measurement-while-drilling signal; wavelet-decomposing the measurement-while-drilling signal to obtain a noisy drilling fluid pulse signal and a noise signal; combining the noise signal, and filtering the noisy drilling fluid pulse signal through a pre-constructed RBF neural network nonlinear adaptive filter to obtain a noise-filtered drilling fluid pulse signal. The present application realizes accurate detection and identification of drilling fluid pulse signals.

The application discloses a measurement-while-drilling device, which is connected between an upper drill collar and a lower drill collar of a drilling device, and comprises a directional sub, a circulation sleeve and a pulse signal generator. A first flow channel is formed in the upper drill collar, a second flow channel is formed in the directional sub, and a third flow channel is formed in the lower drill collar; the first flow channel, the second flow channel and the third flow channel are sequentially communicated. The circulation sleeve is arranged in the second flow channel, and a displacement adjusting channel is formed in the circulation sleeve along the length direction of the second flow channel; a flow limiting ring for circulating drilling fluid is arranged in the displacement adjusting channel. The pulse signal generator comprises a sleeve and a pressure regulating rod assembly movably arranged in the sleeve. The sleeve is partially arranged in the first flow channel, and one end of the sleeve is fixed in the displacement adjusting channel. The end of the pressure regulating rod assembly can extend into the displacement adjusting channel along the length direction of the sleeve. The application realizes the adjustment of the circulating area of the drilling fluid, so that the device can be applied to the working condition with larger displacement of the drilling fluid.

A directional drilling tool for establishing and verifying the high-side orientation of downhole motors relative to measurement-while-drilling (MWD) systems. The tool comprises a fluorescent, lightweight, drillable plastic bracket with an arcuate body that snaps onto tubular components such as downhole motors and drill collars. A radially extending rod provides accurate visual alignment of the motor high side. The tool's flexible, non-hazardous material maintains attachment under rig-floor impacts while enhancing safety for personnel and downhole equipment. It is suitable for whipstock operations and other directional drilling procedures requiring reliable high-side reference.

The application discloses a kind of mine roadway surrounding rock fissure rock mass bearing capacity detection equipment with drilling, and the application relates to the technical field of coal mine drilling survey, including drill rod, one end of the drill rod is provided with comprehensive drilling bit, water inlet pipe is arranged in the drill rod, and the water inlet pipe is used to supply water to the inside of comprehensive drilling bit, the inside of the drill rod is also provided with detection mechanism, the detection mechanism includes: pressure storage tank, one side of the pressure storage tank is fixedly connected with first connecting pipe, the first connecting pipe is fixedly connected with the output end of water pump at the end away from the pressure storage tank, the present application is provided with pressure detection module, flow rate detection module and high-frequency dynamic pressure sensing module, and combined with multi-parameter synchronous acquisition and coupling analysis, the pressure decay characteristic, flow change characteristic and transient pressure response characteristic can be obtained simultaneously, so as to construct surrounding rock fissure equivalent permeation response parameter, with the advantages of realizing the continuous acquisition of surrounding rock fissure permeation characteristic and its spatial distribution.

This invention belongs to the field of vertical shaft blasting excavation construction control technology, and particularly relates to a vertical shaft excavation method that coordinates boundary pipe curtain pre-support with internal weak blasting. The method first delineates the vertical shaft boundary and defines the excavation area. A guide hole is excavated at the center of the area and enlarged to construct a central initial shaft. A rotating magnetic field probe that can move up and down along the axis is installed inside the shaft. During the drilling of the guide hole, the deviation is controlled by an electromagnetic drilling-while-drilling measurement system. Then, grouting holes are excavated along the vertical shaft boundary, and unstable strata sections are simultaneously sampled, identified, and reinforced. At the same time, a retaining structure is constructed to form an edge support system. Subsequently, starting from the central initial shaft, multiple annular blasting areas are divided and marked from the inside out. Blasting holes are laid in each area, and blasting is carried out sequentially from the inside out, satisfying the free face compensation space criterion. Finally, locally unstable areas on the inner wall of the vertical shaft are reinforced in real time, and a permanent lining structure is constructed. This method achieves multi-process coordination, improving the safety and forming quality of vertical shaft excavation.

The invention relates to the field of resistivity measurement, in particular to a while-drilling resistivity measurement device and a resistivity imaging method. A two-end type shielding electrode structure is adopted, the shielding capacity is optimized through numerical simulation, and the instrument detection depth is increased. The modularized detector can be flexibly installed, can also work independently and is convenient to install and maintain, and the measuring device can measure the formation resistivity and can also obtain the oil-based mud resistivity in real time. The problem that the accuracy of a final result is seriously influenced due to the fact that the oil-based mud resistivity cannot be independently obtained in the prior art is solved.

The invention discloses a multi-module cooperative work control method and system for a wireless measurement-while-drilling instrument, and belongs to the technical field of drilling engineering.The method comprises the steps that real-time state data and drilling environment parameters of all modules are obtained; performing parameter integration on the real-time state data and the drilling environment parameters to generate a state parameter set; carrying out comprehensive analysis processing on the state parameter set, generating dynamic priorities through a dynamic priority calculation algorithm, and generating a priority sequence according to the arrangement of the dynamic priorities; generating a task scheduling instruction including a resource allocation strategy and a task execution time sequence according to the priority sequence; and executing the task scheduling instruction, collecting execution result data of each module, and using the execution result data to adjust a dynamic priority calculation algorithm to form an optimized scheduling strategy. According to the method, the multi-source data fusion and dynamic priority calculation technology is adopted, a closed-loop feedback optimization mechanism is combined, and cooperative scheduling and resource optimization of all modules of the wireless measurement-while-drilling instrument can be achieved.

The disclosure describes a BHA that generates electricity downhole which can then be utilized with an electric motor to turn the drive shaft and for drive shaft orientation. The disclosure also describes a more accurate MWD measurements by placing MWD sensors closer to drill bit.

The application provides a high-temperature drift compensation method and system for a resistivity signal while drilling, and belongs to the technical field of measurement while drilling. The method comprises the following steps: functionally dividing a resistivity measurement system while drilling to construct a set of sensing link nodes; injecting a temperature-sensitive disturbance excitation signal into the resistivity measurement system while drilling to obtain a composite excitation signal set, and extracting a multi-dimensional response observation vector of the composite excitation signal set; establishing a temperature-sensitive mapping relationship matrix of the set of sensing link nodes and the multi-dimensional response observation vector; adaptively calculating the number of decoupling compensation channels of the temperature-sensitive mapping relationship matrix to obtain the number of decoupling compensation channels; and constructing a multi-channel decoupling compensation model for compensating and fusing the original resistivity signal of the resistivity measurement system while drilling. Through fine modeling and channel-by-channel compensation of the temperature drift of each node of the sensing link, residual drift error is effectively reduced, and the resistivity measurement accuracy while drilling is improved.

The application discloses a geological exploration intelligent drilling control method, system, device and storage medium, belongs to the technical field of geological exploration and intelligent drilling engineering, adopts an adaptive optimization strategy to dynamically adjust a measurement-while-drilling system collection parameter, synchronously collects drilling multi-source while-drilling data, carries out space-time synchronous preprocessing and multi-source cross-domain feature fusion on the multi-source data, constructs a global fusion feature vector, inputs the feature vector into a pre-trained stratum identification and risk prediction model, and outputs real-time stratum lithology, drilling risk and target area deviation information; drilling technology and trajectory parameters are synchronously adjusted according to the information, the inference accuracy and the computing power configuration of the model are dynamically adjusted, the intelligent drilling closed-loop control is completed, the sampling frequency, the range, the channel configuration and the transmission bandwidth of the measurement-while-drilling system can be dynamically and linkage-adjusted, and the whole-process autonomous intelligent control of deep complex stratum drilling is realized.

This invention belongs to the field of natural gas extraction technology in deep thin coal and rock formations. It discloses a directional anti-sticking drill string assembly and drilling method for horizontal wells in deep thin coal and rock formations. A closed-loop control system is formed between the drill bit trajectory control mechanism and the wellbore dressing and anti-sticking mechanism, encompassing near-bit high-precision sensing, real-time data transmission while drilling, surface analysis feedback control, active downhole directional correction, and synchronous wellbore dressing and protection. Multi-directional gamma sensors positioned near the drill bit provide high-resolution formation information; the bend structure of the downhole power drill string provides the direction of the wellbore trajectory; the non-magnetic bearing section ensures the stability of measurement while drilling and the reliability of communication; the surface control unit enables real-time decision-making and trajectory correction; and the wellbore dressing and anti-sticking mechanism simultaneously improves wellbore stability and cuttings carrying capacity. This significantly enhances the drilling throughput and resistance to coal seam collapse in complex sections of thin coal and rock formations while ensuring trajectory controllability, reducing the risk of sticking due to wellbore instability and cuttings accumulation.

The application discloses a kind of probability model construction method and system for tunnel engineering geology risk discrimination, it is related to data analysis processing technical field.The following steps are included:S1, according to the preset paragraph length along tunnel axis, tunnel is divided into several sections, in each section, at least one method is used in drilling while drilling measurement, machine vision scanning, advanced geological prediction, the surrounding rock characteristic parameter of the section is obtained.The present application simultaneously establishes the prior probability model of three main geological risks of collapse, gushing water and surrounding rock large deformation, and the overall probability of at least one disaster is calculated through the correlation coefficient correction joint probability formula, compared with the prior art only for single gushing water risk discrimination, the coupling effect of multiple risks coexistence can be quantified, the comprehensive danger degree of paragraph is truly reflected, and the problem that single risk assessment easily leads to insufficient measures is solved.

The present application relates to the field of measurement while drilling technology, and more particularly to a method, system and electronic device for improving the measurement accuracy of data while drilling, the method comprising: obtaining the attitude angle of the drill string at the current time by using a MEMS three-axis accelerometer and a MEMS three-axis gyroscope, wherein the MEMS three-axis accelerometer and the MEMS three-axis gyroscope are both installed on the drill string; calculating the error compensation value corresponding to the attitude angle of the drill string at the current time; and compensating the attitude angle of the drill string at the current time by using the error compensation value corresponding to the attitude angle of the drill string at the current time, to obtain the final attitude angle of the drill string at the current time. The installation error of the MEMS three-axis accelerometer and the MEMS three-axis gyroscope installed on the drill string, the angle random walk error and the zero drift error can be reduced, and the measurement accuracy of the data while drilling, i.e. the attitude angle of the drill string, can be improved.

The invention discloses a multi-parameter fusion rock stratum fracture method based on measurement of parameters while drilling of a down-the-hole drill, and relates to the technical field of mining machinery. Comprising the following steps: in the drilling process of a down-the-hole drill, acquiring a measurement-while-drilling parameter, a borehole peeping image and a rock mass acoustic wave velocity; calculating the change rate of adjacent rock stratum structures, and judging the change positions of the rock stratum structures according to standards; respectively calculating local variable coefficients of the axial force and the drilling speed, and constructing a rock mass fracture index by combining the axial force variance, the drilling speed variance and the weight coefficient; and based on the measurement-while-drilling parameters, the borehole peeping image, the rock mass acoustic wave velocity and the rock mass fracture index, a fracture recognition model is constructed, and rock mass integrity judgment is completed by combining a strength judgment module. The method aims at determining the rock stratum fracture according to the real-time while-drilling parameters of the field down-the-hole drill, the drilling parameters in the drilling process can be accurately obtained in real time by means of the developed while-drilling system, the drilling specific energy of the down-the-hole drill is analyzed, and therefore the integrity index of the rock mass is determined.

The invention relates to an ultra-short radius horizontal well horizontal drilling track control tool and method.The tool comprises an execution assembly and a measurement assembly, the execution assembly comprises a flexible single-bend screw drill, and the top end of the flexible single-bend screw drill can be connected with a wellhead top rotary table through an upper flexible drill rod; the flexible single-bend screw drill comprises a motor power short section, a cardan shaft short section, a speed reducer main short section and a transmission shaft short section which are hinged in sequence, and the axes of every two adjacent short sections can be arranged in a flexible bend angle mode. The measurement assembly comprises a flexible mud pulse measurement-while-drilling tool, and the flexible mud pulse measurement-while-drilling tool is used for measuring the hole deviation angle and the azimuth angle of a drill bit end in real time and feeding back a well deviation signal and an azimuth signal to a well mouth. The flexible drilling rod technology and the flexible measurement and control while drilling tool combined technology are combined, the problem that the track of the ultra-short radius multi-branch horizontal well cannot be controlled is solved, better underground power is provided for the drill bit, and the drilling efficiency is improved while the reservoir transformation precision is improved.

The invention relates to the field of petroleum drilling underground testing instruments, in particular to a length adjusting device and method suitable for various measurement-while-drilling instruments. The problems that existing while-drilling instrument connecting structures are not universal, length adjusting methods are different, and maintenance is facilitated are mainly solved. Comprising a conversion connector (1) and a measurement-while-drilling drill collar (4), the conversion connector (1) is located in the measurement-while-drilling drill collar (4), the right end of the conversion connector (1) is connected with a length adjusting assembly (3), the conversion connector (1) is connected with the length adjusting assembly (3) through a single-core contact pin (2), and the right end of the measurement-while-drilling drill collar (4) is connected with a lower connecting assembly (5). And the lower connecting assembly (5) is connected with a female contact pin (314) in the length adjusting assembly (3) through an adapter (502). According to the length adjusting device, unification of a length adjusting system of the instrument while drilling is achieved, the maintenance cost is greatly reduced, and the maintenance period is shortened.

The application discloses a kind of super-long steeply inclined angle inclined shaft high-precision guide hole directional drilling and reverse shaft drilling combination construction method, it is related to inclined shaft construction technical field, including in the process of guide hole drilling construction, the drilling trajectory of drill bit is obtained in real time using measurement-while-drilling system;Drilling trajectory of drill bit is compared with preset drilling trajectory, and tool face angle of drilling tool is corrected and analyzed when deviation exceeds threshold range;Based on the analysis result, the adjustment amount of tool face angle of drilling tool is obtained, and the adjustment amount obtained is used to adjust tool face angle;When guide hole construction is to last 60 meters, switch to rotating magnetic field ranging system to guide the drilling trajectory of drill bit until the construction of guide hole is completed;Reverse shaft drilling machine is used to ream the guide hole, and the construction of inclined shaft is completed and the like steps, the present application effectively overcomes the influence of gravity and formation in the prior art, and can realize accurate construction of guide hole, effectively improving the construction quality of inclined shaft project.

The application discloses a wireless measurement while drilling directional drilling hole-protecting drilling tool, which comprises a directional drilling head, a hollow screw motor short section, a hollow non-magnetic short section, a drill pipe and a water feeder arranged in sequence from front to back and communicated with each other, and a pressure sensor is connected to the water feeder; a first flow passage is arranged in the directional drilling head; a second flow passage is arranged in the hollow screw motor short section; the hollow non-magnetic short section comprises a non-magnetic short section outer pipe and a recyclable wireless measurement while drilling instrument assembly arranged in the non-magnetic short section outer pipe; the drilling tool of the application can realize wireless measurement while drilling in the drilling process, and can realize non-drilling recovery of the measurement instrument assembly after the measurement is completed; after the recyclable wireless measurement while drilling instrument assembly is taken out, a physical channel can be provided for the screen pipe lowering while drilling, so that the wireless measurement while drilling directional drilling hole-protecting integrated construction is realized.

A trajectory and reservoir relationship determination method and device based on entry and exit layer feature recognition, the method comprising: classifying and counting basic data according to angle difference values to obtain a first feature set; simulating a drill bit entering and exiting a layer by using a geological model to obtain drilling parameters at the entry and exit layer time, and performing regression calibration processing on the measurement-while-drilling and logging data corresponding to the entry and exit layer time to obtain a second feature set; performing model correction processing on the geological model by using the first feature set and the second feature set; simulating the drill bit entering and exiting the top and bottom of the target layer at different angle differences by using the corrected geological model to obtain drilling parameters, logging-while-drilling and logging data, and performing logging-while-drilling and logging data conversion calibration processing to obtain a third feature set; obtaining measured data, and performing trajectory adjustment processing on the measured data by using the third feature set to complete trajectory optimization. The present application performs trajectory optimization adjustment in advance, improves the reservoir drilling effect, and has a broad application prospect.

The invention relates to the technical field of well depth measurement, in particular to a measurement-while-drilling probe pipe nipple device and a measurement method. The measurement-while-drilling exploring tube short section device comprises an outer cylinder, a short section module and a vibration reduction assembly, the short section module comprises a main control short section and a machine core short section, a main control unit is arranged in the main control short section, a sensing measurement unit is arranged in the machine core short section, and the main control unit and the sensing measurement unit are conducted through butt joint of the main control short section and the machine core short section. The vibration reduction assembly comprises an open ring, a first sealing ring and a second sealing ring, the first sealing ring is arranged on the outer wall of the open ring for primary vibration reduction, and the second sealing ring is arranged on the inner wall of the open ring for secondary vibration reduction. The main control unit and the sensing measurement unit are independently arranged, electrical isolation and physical protection are provided so as to reduce line interference among different functional units, the effects of buffering impact and reducing vibration are achieved through the vibration reduction assembly, and it is guaranteed that the device can safely and stably operate under the complex well condition.

The invention relates to the technical field of geotechnical engineering, in particular to a GZZ constitutive model parameter calibration device and method based on measurement while drilling, the device specifically comprises a base, a triaxial pressurization mechanism, a drilling mechanism, a data acquisition module and a data processing module, the base is provided with two vertically arranged backup plates, and the backup plates are used for supporting a sample; the triaxial pressurization mechanism can perform triaxial pressurization on the sample; the drilling mechanism can penetrate through the hollow part to drill the sample; the data acquisition module is used for acquiring a pressure value applied to the sample by the triaxial pressurization mechanism and while-drilling data of the drilling mechanism; and the data processing module can obtain GZZ constitutive model parameters according to the pressure value fed back by the data acquisition module and while-drilling data processing. According to the invention, the drilling process simulation under the constant-rigidity boundary condition can be realized through the triaxial pressurization mechanism, and the mechanical properties of in-situ rock can be better restored; and operation is easy, the structure is clear, and application of an engineering field and follow-up equipment maintenance are facilitated.

The invention belongs to the technical field of measurement while drilling, and discloses a high-precision dynamic continuous inclinometer while drilling. Comprising a drill collar, and a runner joint assembly, an exploring tube assembly and a hard connection assembly which are arranged in the drill collar in sequence and connected in sequence. The probe assembly comprises a probe shell, a probe framework assembly and a fast rotating structure assembly, wherein the probe framework assembly and the fast rotating structure assembly are sequentially arranged in the probe shell and are connected in an inserted mode through a half-buckle structure. The exploring tube framework assembly is provided with a main control power supply circuit board, an acquisition circuit board, three quartz flexible accelerometers, a fluxgate processing circuit and a fluxgate sensor, wherein every two quartz flexible accelerometers are orthogonal. The quick-rotation structure assembly comprises a shaft, a quick-rotation nut and a spiral shock absorber, the upper end of the shaft is connected with the half-buckle adapter through the spiral shock absorber, the lower end of the shaft is sleeved with the quick-rotation nut, the nut is in threaded fit with the exploring tube shell, and during screwing, a shaft shoulder is pushed to drive the exploring tube framework assembly to linearly move in the exploring tube shell. According to the invention, high-precision and high-reliability dynamic continuous measurement under complex drilling working conditions can be realized.

A hole fracture indicator system and method for adaptively auto-collaring boreholes for a drilling machine in a rock formation is provided. The method includes the steps of initiating rotation of a drill bit of the drilling machine; receiving, in real time, measurement-while-drilling (MWD) data from one or more sensors of the drilling machine during drilling of the borehole; drilling until a fracture start in the borehole is determined; marking the fracture start; when an amount of fracture and location of the fracture in the borehole is determined, determining how much water is needed to fortify a wall of the borehole at the fracture; and initiating collaring of the borehole at the fracture start by initiating watering of the rock formation upon determination of the start of the fracture.

The application discloses a downhole information interpretation method and system based on drill bit vibration data, and the method comprises the following steps: integrating an intelligent sensing module in the water eye of an existing drill bit, collecting downhole vibration data and environmental parameters in the drilling process at a high sampling frequency; synchronously aligning the downhole vibration data and the ground drilling parameters; calibrating and compensating the synchronized vibration data by using the environmental parameters and extracting features to obtain a vibration feature parameter vector reflecting the interaction between the drill bit and the stratum; and identifying the stratum lithology or the drilling working condition based on the vector and in combination with the environmental parameters. The application solves the problems of information distortion and low resolution caused by the fact that the sensor is far away from the drill bit and the data bandwidth limitation of the traditional measurement-while-drilling system, provides an unprecedented high-precision data basis for post-drilling fine analysis, geological model calibration and future drilling decision optimization, and the good compatibility with the existing drill bit does not require redesign and manufacture of the drill bit, thereby significantly reducing the application cost.

The application discloses a borehole trajectory real-time guiding control system and method of a wireless measurement-while-drilling instrument, and belongs to the technical field of drilling engineering. The system comprises the following steps: collecting borehole posture data and environmental factor data through the wireless measurement-while-drilling instrument, and generating fusion data; generating adaptive control parameters through an adaptive learning mechanism based on the fusion data and historical guiding effect data; performing channel adaptation processing and dynamic compensation on the adaptive control parameters to generate a compensation control signal; controlling the operating posture of a guiding tool by using the compensation control signal, calculating the deviation between actual borehole trajectory data and preset target borehole trajectory data, and generating trajectory deviation data; and updating the learning parameters of the adaptive learning mechanism based on the trajectory deviation data. The application adopts multi-source data fusion perception, intelligent decision based on an adaptive learning mechanism, dynamic compensation communication based on channel adaptation, and closed-loop feedback updating based on trajectory deviation, and can realize real-time guiding control of a borehole trajectory.

The invention relates to the technical field of natural gas resource horizontal well drilling, in particular to a dynamic modeling and trajectory optimization method for a tectonic dip angle, which comprises the following steps of: 1, acquiring three-dimensional seismic data, a logging curve, stratum attitude parameters and geomechanical data, and integrating measurement-while-drilling data, so as to obtain a model; constructing an initial geologic model and carrying out data preprocessing and consistency verification; step 2, processing a geological structure and optimizing a velocity field, fusing the static model and real-time while-drilling data to dynamically correct the dip angle of the structure, and predicting the dip angle change of the next drilling section; according to the method, the static model and the while-drilling data are deeply fused through Kalman filtering and the LSTM algorithm, dynamic updating and high-frequency correction of the dip angle of the structure are achieved, prediction deviation is remarkably reduced, the model updating period is greatly shortened, the recognition precision and the dynamic response capability of a thin reservoir and a structure sudden change stratum are effectively improved, and the method is suitable for large-scale popularization and application. And real-time fusion of high-precision dynamic modeling and multi-source data is realized.