66 results about "Offshore drilling" patented technology

The invention relates to a method, a device, equipment and a medium for predicting the fatigue crack life of an offshore well drilling rack, and is applied to the technical field of engineering equipment life prediction. Analyzing the monitoring data and the video data to determine a crack condition; acquiring historical life information, current task information and current environment data; and analyzing the crack condition, the historical life information, the current task information and the current environment data to obtain a life prediction condition. The method has the effect of improving the accuracy of predicting the crack propagation life of the offshore well drilling rack.

The utility model discloses a positioning auxiliary assembly of an ocean drilling coring device, which comprises tension sensors, a plurality of groups of tension sensors are respectively provided with a frame body, and a shaft body of a grooved wheel movably penetrates through the plurality of groups of frame bodies. According to the utility model, the double-thread screw drives the two groups of rod bodies to laterally move towards one end and the other end respectively, and the rod bodies can drive the column bodies to move out of the first grooves at the tension sensor, so that the frame body can drive the grooved wheel to complete disassembly and assembly, and the disassembly and assembly process of the grooved wheel driven by the frame body becomes simple and rapid. Compared with a traditional complex disassembly and assembly method, a large number of professional tools and tedious steps do not need to be used, an operator can complete replacement of the grooved wheel in a short time, the equipment maintenance efficiency is greatly improved, the interruption time of ocean drilling coring operation caused by replacement of the grooved wheel is shortened, and time cost and economic losses are reduced.

Methods, systems and devices that utilize a mobile offshore drilling unit (MODU) with other integrated equipment, hereinafter a mobile offshore production unit (MOPU) or a traditional floating production unit (FPU) to produce oil and natural gas from an oil and gas containing subsea geological formation are described. When the MOPU / FPU consumes all produced natural gas in one or more processes onsite to produce products selected from power, liquid petroleum products, hydrogen gas, solid carbon, and combinations thereof, then the production unit is transformed into a Modular MOPU™. Some produced natural gas is used to generate electricity for normal facility operations and additional natural gas consumed to generate electricity for various 4th-phase processes or used as feedstock for the production of value added products in processing equipment such as pyrolysis units, and / or gas-to-liquids units. Maximizing consumption of produced natural gas onsite, optimizes oil production without flaring, and without any export pipelines.

The present application relates to the technical field of offshore oil drilling and sampling equipment, and particularly relates to a double-layer combined coring drill rod for offshore drilling. The present application relates to the technical field of offshore oil drilling and sampling equipment, and particularly relates to a double-layer combined coring drill rod for offshore drilling. The double-layer combined coring drill rod comprises a drill bit, a first drill rod, a second drill rod, a first sleeve, a second sleeve and two sets of limiting assemblies. The first sleeve is sleeved on the outer wall of the first drill rod, the second sleeve is sleeved on the outer wall of the second drill rod, the second drill rod is connected with the first drill rod, the drill bit is connected with the second drill rod, the limiting assembly comprises a sliding rod, a pull block, a limiting spring, a bearing block and a clamping sleeve, the second sleeve is provided with a bearing groove, the bearing block is matched with the bearing groove, the clamping sleeve is fixedly connected with the bearing block, the first sleeve is provided with a groove, the limiting spring is arranged in the groove, the clamping sleeve is further fixedly connected with the limiting spring, the two ends of the sliding rod are fixedly connected with the clamping sleeve and the pull block respectively and are inserted into the groove, and the sliding rod is slidably connected with the first sleeve. Through the arrangement of the above structure, the drill rod is convenient to transport when working at sea.

The application discloses a method and device for determining a drilling path at sea and an electronic device. The application relates to the field of ocean engineering automation. The method comprises: creating an ocean environment model; under the ocean environment model, path information of a plurality of target drilling paths of a drilling ship at sea is determined by using a plurality of path planning algorithms respectively, with the aim of minimizing a comprehensive cost, wherein the comprehensive cost is determined by a plurality of sub-costs and preset weights corresponding to each sub-cost, the plurality of sub-costs include an energy consumption cost, a time cost and a satisfaction cost, the satisfaction cost is determined according to a satisfaction index, and the satisfaction index is used to quantify at least an operation safety degree and a navigation comfort degree of the drilling ship at sea according to the drilling path; and the path information of the plurality of target drilling paths is output. The application solves the technical problem that it is difficult to simulate the complex changes of the ocean to plan the drilling path for the ship due to the fact that only a single index is considered when the drilling path is determined.

The present application belongs to the technical field of submarine pipeline laying, and particularly relates to a high-precision butt joint method, system and equipment for submarine pipeline laying under rocks, aiming to solve the problem that the accurate butt joint construction of the existing submarine directional drilling crossing technology can only be carried out in the horizontal direction of land or the crossing drilling between land and land. The present application comprises the following steps: through a sea drilling ship, a positioning drill bit carrying a magnetic source beacon is made to drill down through a drill rod in the butt joint sea area, a guide source is set, the first butt joint drilling tool is guided to drill to a preset butt joint area and the through position is recorded through the guide source, the first butt joint drilling tool is retracted, the second butt joint drilling tool is guided to the through position through the guide source, and directional drilling is completed. The present application enables the horizontal directional drilling construction based on magnetic source positioning to carry out rock butt joint operation in any sea area where offshore drilling operation can be carried out, and solves the problem that the butt joint in rocks between the ocean and islands can only be carried out in one-way operation.

The present application relates to the technical field of drilling and workover simulation, in particular to a sea-land drilling and workover simulation system and method based on digital twinning, which comprises the following steps: collecting parameter information in the drilling and workover process, dividing the drilling and workover process of sea-land drilling and workover according to the parameter information to obtain multiple work levels; establishing the association relationship between each work level, constructing a simulation model of sea-land drilling and workover according to the multiple work levels and the association relationship therebetween; constructing a real-time digital twinning model of sea-land drilling and workover as a temporary model corresponding to the simulation model of sea-land drilling and workover, determining an environment area to be updated from the multiple work levels according to the association relationship; determining a level area to be updated corresponding to the environment area to be updated from the temporary model, which can adjust the simulation environment of the simulation model according to the change of the actual environment parameters, thereby improving the accuracy of the simulation.

The invention belongs to the technical field of natural gas hydrate (combustible ice) exploitation, and particularly relates to a method and system for exploiting hydrates through super-long gravity assisted heat pipes in a depressurization mode. According to the invention, the offshore drilling platform is used for drilling the open hole well, the super-long gravity heat pipe is placed in the open hole well, one section of the super-long gravity heat pipe is arranged in the high-temperature lower coating, and the other section of the super-long gravity heat pipe is arranged in the hydrate reservoir or the ice-containing shallow layer, so that the working medium in the super-long gravity heat pipe is driven to circulate through the high temperature of the lower coating; the heat of the lower covering layer is continuously transmitted to the hydrate reservoir or the ice-containing shallow layer to be dissipated, so that the temperature of the hydrate reservoir or the ice-containing shallow layer is increased, the phase balance of the hydrate is broken, the hydrate is decomposed to produce gas, and the natural gas is transmitted to a natural gas collecting tank on the offshore drilling platform through the vertical well to be stored, so that the effect of exploiting the natural gas hydrate is achieved.

The invention discloses a method and device for determining an offshore drilling path and electronic equipment. The invention relates to the field of ocean engineering automation. The method comprises the following steps: creating a marine environment model; under the marine environment model, path information of multiple target drilling paths of the offshore drilling ship is determined by adopting multiple path planning algorithms with the purpose of minimizing the comprehensive cost as the target, the comprehensive cost is determined through multiple sub-costs and the preset weight corresponding to each sub-cost, and each sub-cost is determined according to the preset weight corresponding to each sub-cost; the multiple sub-costs comprise energy consumption cost, time cost and satisfaction cost, the satisfaction cost is determined according to satisfaction indexes, and the satisfaction indexes are at least used for quantifying the operation safety degree and the navigation comfort degree of offshore drilling conducted by the offshore drilling ship according to the drilling path; and outputting the path information of the plurality of target drilling paths. The technical problem that it is difficult to simulate complex changes of the ocean to plan the drilling path for the ship due to the fact that only a single index is concerned when the drilling path is determined is solved.

A method for wind-ship fluid-structure interaction (FSI) in a digital twin environment is proposed. This method establishes a wind-ship coupling force and moment calculation model within the constructed digital twin environment. Based on the ship's attitude attributes, the wind force and moment are calculated, and dynamic formulas are further applied to simulate changes in the ship's velocity and angular velocity, thus achieving FSI. This invention fully considers the spatiotemporal changes in the environment and the impact of changes in ship attitude. The surface of the ship model is decomposed into triangular facets for calculation, ensuring the realism of the simulation results. It is applicable to any type of offshore floating body, such as buoys, offshore drilling platforms, or offshore wind turbines, where wind and wave coupling is significant.

The invention provides an anticorrosive paint formula and process, and relates to the technical field of anticorrosive paints.The anticorrosive paint formula comprises epoxy zinc-rich primer, epoxy micaceous iron oxide intermediate paint and acrylic aliphatic polyurethane finish paint.The epoxy zinc-rich primer comprises epoxy resin, zinc powder, organobentonite, a dispersing agent and a solvent; the epoxy micaceous iron oxide intermediate paint takes epoxy resin and micaceous iron oxide gray as main anticorrosive fillers; and the finish paint is cross-linked and cured by adopting hydroxy acrylic resin and an HDI tripolymer curing agent. The coating shows super-long corrosion resistance and high natural weather aging resistance, the performance of the coating is far better than that of a traditional coating, and the coating is particularly suitable for offshore drilling platforms, ports and wharfs, petrochemical facilities, roads and bridges, stadium steel structures, electric power facilities and other facilities exposed in severe environments for a long time; the service life of facilities can be effectively prolonged, the maintenance period can be effectively shortened, and due to the excellent performance, the coating has a wide prospect in various engineering applications requiring high weather resistance and corrosion resistance.

A method of temporarily anchoring a mobile offshore drilling unit (MODU) at an offshore drilling site includes laying out anchoring assemblies at a sea floor. Each anchoring assembly has a connection unit adjacent to the drilling site, an anchor line extending away therefrom, and a sea floor anchor. The MODU is brought to the drilling site. Successively, for each connection unit, a dynamic positioning system at the MODU is operated to move the MODU to a position substantially vertically above the connection unit, a drilling unit anchor line having a connection member is lowered from the MODU to engage the connection unit, and the drilling unit anchor line is connected with the respective anchoring assembly via the connection unit and the connection member. Each drilling unit anchor line is tensioned from the MODU to anchor the MODU at the drilling site via the plurality of anchoring assemblies.

The present application relates to the technical field of offshore drilling, and particularly relates to a self-repairing vortex-induced vibration suppression device for offshore riser, which comprises an inner sleeve 2, an outer sleeve 3 and a spoiler column 4, the inner sleeve 2 is in the shape of a truncated cone with the upper end larger than the lower end, a guide hole 20 is formed in the inner sleeve 2 along the vertical direction, and the inner sleeve 2 is sleeved outside the offshore riser 1 through the guide hole 20. The outer sleeve 3 is in the shape of a cylinder, a truncated cone hole 30 is formed in the middle of the outer sleeve 3 along the vertical direction, the truncated cone hole 30 is provided with a thread, the inner sleeve 2 is threadedly connected with the outer sleeve 3, the inner sleeve 2 is provided with a prefabricated groove 21 along the vertical direction, a one-way bearing 5 is installed between the outer sleeve 3 and the spoiler column 4, and the spoiler column 4 is externally provided with a protruding spoiler block 41. When facing the sea current, the spoiler column 4 suppresses the formation of vortex-induced vibration, and can self-reinforce the reliability of installation under the action of the sea current, avoids falling off and failure, and reduces the maintenance cost in the use process.

The utility model relates to the technical field of marine rock-soil coring, and discloses an offshore drilling platform marine rock-soil drilling coring device which comprises an inner threaded pipe, an inner pipe is in threaded connection with the interior of the inner threaded pipe, sliding grooves are formed in the left side and the right side of the interior of the inner pipe respectively, and sliding blocks are slidably connected with the interiors of the two sliding grooves respectively. And the same fixing frame is fixedly connected between every two adjacent sliding blocks, a rotating column is rotationally connected to the interior of each fixing frame, clamping rods are fixedly connected to the front side and the rear side of the outer wall of each rotating column, and clamps are fixedly connected to the bottoms of the two clamping rods. The fixing rod is rotated to drive the inner pipe to rotate, the inner pipe descends to the rock core position and continues to rotate, the tooth ring throws soil to expose the rock core, the clamping rod drives the clamp to move inwards, clamp the rock core, the rock core makes contact with the clamping plates, the damping pipe is extruded, vibration is reduced, completeness is ensured, the clamping rod is pulled to enable the sliding block to move upwards, the rock core is taken out, and therefore completeness of the rock core is ensured.

The utility model discloses an air compression device for a marine drilling platform, which comprises a case, a plurality of air compression devices and a plurality of air compression devices, a cavity with an upward opening is defined by the case, a hole communicated with the cavity is formed in the side wall of the case, a top beam is connected to the position, located at the opening, of the inner side of the case, and the top beam divides the opening into a plurality of hoisting inlets; the top cover is connected to the top side of the case, and the top cover covers the opening; the door plate is connected to the side wall of the case, and the door plate covers the hole; according to the marine air compressor set, the space requirement of the environment where the case is located is reduced, the convenience of installation and maintenance of the air compressor set is improved, the overall structure is stable, and stable and reliable work of the air compressor set in the marine environment is facilitated.

This utility model provides a multi-degree-of-freedom maintenance platform for offshore drilling platforms, relating to the field of offshore drilling platforms. It primarily addresses the problems of limited operation and compromised worker safety in existing maintenance platforms. This multi-degree-of-freedom maintenance platform mainly consists of a frame, sliding plate, rotating shaft, rocker arm, suspended platform, and winch. The frame can move horizontally along the edge of the offshore drilling platform; the sliding plate can move vertically along the frame; the rotating shaft is mounted on the sliding plate and can swing horizontally around a vertical line; the rocker arm is hinged to the rotating shaft and can swing vertically in the vertical plane; the suspended platform is horizontally hinged to the end of the rocker arm; and the winch is mounted on the rotating shaft and connected to the suspended platform via a wire rope for adjusting the platform's pitch angle. This utility model, through the coordinated movement of its components, gives the suspended platform five degrees of freedom, significantly increasing its flexibility. Maintenance personnel are no longer limited by operating position and angle when performing drilling maintenance, allowing for safer maintenance operations.

An offshore drilling wellbore pressure control device comprises an automatic control module, a prying type choke manifold, a well killing pump and a supplementary well killing pump, a mud pit and a wellbore are connected through a first communication channel and a second communication channel respectively, the well killing pump and a first pressure sensor are arranged on the first communication channel, the first communication channel is communicated with a drill rod, and the second pressure sensor is arranged on the second communication channel. The drill rod is arranged in the shaft, the second communicating passage is provided with a skid-type throttle manifold and a supplementary kill pump, the skid-type throttle manifold is internally provided with a speed-adjustable throttle valve, and the second communicating passage between the speed-adjustable throttle valve and the wellhead is provided with a gas-liquid flowmeter and a second pressure sensor. The method has the advantages that automatic control over the whole well killing process is achieved, adverse effects caused by manual well killing of field personnel are completely eliminated, and the problems that pressure control is not accurate in the well killing process, and gas overflow well killing difficulty is large are solved. The automatic well killing device can be used on site and can automatically adjust the wellhead pressure, and the response speed and accuracy of well killing operation are improved.

The present application belongs to the field of offshore drilling, and relates to a data analysis technology, which is used to solve the problem that the prior art cannot reasonably set the control parameters when the setting value analysis results of the same control parameter are contradictory, and specifically is an offshore fine pressure control drilling intelligent control system based on AI technology, which comprises a parameter control module, a compensation control module, a protection adjustment module and a protection optimization module connected in sequence; the parameter control module is used for parameter control analysis of the seabed drilling equipment; a plurality of control groups are generated and the deviation coefficient of the control groups is calculated, and the setting optimization value is marked through the deviation coefficient; and the setting optimization value is sent to the compensation control module; the present application effectively solves the control instruction conflict problem caused by multi-source monitoring parameters, avoids the wellbore plugging risk caused by control lag, and improves the safety and control precision of deep sea drilling operations.

Methods, systems and devices that utilize a mobile offshore drilling unit (MODU) with other integrated equipment, hereinafter a mobile offshore production unit (MOPU) or a traditional floating production unit (FPU) to produce oil and natural gas from an oil and gas containing subsea geological formation are described. When the MOPU / FPU consumes all produced natural gas in one or more processes onsite to produce products selected from power, liquid petroleum products, hydrogen gas, solid carbon, and combinations thereof, then the production unit is transformed into a Modular MOPUTM. Some produced natural gas is used to generate electricity for normal facility operations and additional natural gas consumed to generate electricity for various 4th-phase processes or used as feedstock for the production of value added products in processing equipment such as pyrolysis units, and / or gas-to-liquids units. Maximizing consumption of produced natural gas onsite, optimizes oil production without flaring, and without any export pipelines.

The application provides a coating main agent, an anticorrosive coating and an anticorrosive coating layer and application, and the coating main agent is prepared from raw material components including modified epoxy resin, zinc powder, barium sulfate, talcum powder, n-butanol, dimethylbenzene and functionalized graphene; wherein the modified epoxy resin is an epoxy-polyether block copolymer; the coating prepared from the coating main agent can obtain a coating layer with different potentials through a composite coating method, so that a coating layer with a matching film thickness less than or equal to 200 mu m and excellent corrosion resistance is obtained, and the coating layer can be widely used for the corrosion protection of large steel structures such as offshore drilling platforms, offshore wind power and bridges.

The application discloses a kind of marine drilling dry wellhead blowout preventer tensioner, including two tensioning liquid cylinders, chain and energy storage control pry, each tensioning liquid cylinder is connected with blowout preventer group hanging by chain, two tensioning liquid cylinders are communicated with the high-pressure outlet of energy storage control pry by a high-pressure hose respectively, two tensioning liquid cylinders are also communicated with the low-pressure return port of energy storage control pry by a low-pressure hose respectively.The device of the application meets the top tension requirement of blowout preventer for offshore jack-up drilling platform and tension leg platform, and also has high integration degree, good stability, good practicality and popularization value.

The invention belongs to the technical field of lubricating grease, and relates to high-water-resistance and high-adhesion drilling tool thread grease and a preparation method thereof. The thread compound is prepared from base oil, a composite thickening agent, a water-resistant reinforcing agent, an adhesion promoter, a self-repairing active particle anti-wear agent and the like through a specific process. The self-repairing function of response-filling-crosslinking can be achieved through the self-repairing active particle anti-wear agent, a compact colloid structure is constructed through synergistic crosslinking of the composite thickening agent and the base oil, a hydrophobic protective film is formed through combination of the composite thickening agent and the water-resistant reinforcing agent, and the interface adsorption capacity is improved through combination of the adhesion accelerant; the product can still keep excellent water separation resistance and adhesion stability in saturated saline water and high-temperature and high-pressure water invasion environments, thread grease loss and thread joint corrosion and drill jamming are prevented, and the high requirements of severe operation environments with high humidity and strong water invasion characteristics such as deep wells, ultra-deep wells and offshore drilling are met.

The invention provides an AI monitoring method for analyzing the corrosion risk of a drilling pipeline based on time sequence data. The AI monitoring method comprises the following steps: S1, acquiring multi-source time sequence data of the drilling pipeline of an offshore drilling platform; s2, preprocessing and standardizing the original data; s3, time series data feature engineering and feature screening; s4, marking corrosion risk labels and dividing a data set; s5, training an AI corrosion risk prediction model; s6, verifying and optimizing the performance of the AI model; s7, performing real-time corrosion risk reasoning; s8, carrying out corrosion risk early warning and data feedback; and S9, historical data redisk and model iterative optimization are carried out. Aiming at the corrosion risk of the drilling pipeline of the offshore drilling platform, a full-process AI monitoring system of data driving, algorithm fusion and closed-loop iteration is constructed, and aims to realize real-time accurate identification, graded early warning and continuous optimization of the corrosion risk, guarantee safe operation and maintenance of the platform and reduce the operation and maintenance cost.

The invention discloses a petroleum drilling machine for deep-sea petroleum drilling, and relates to the technical field of well drilling, in particular to a petroleum drilling machine for deep-sea petroleum drilling, which comprises a measurement and control shell and a valve body arranged in the measurement and control shell, a plurality of overflowing holes are formed in the outer surface of the valve body, and a valve core capable of moving up and down is arranged in the valve body; through cooperative arrangement of a stepped linkage structure of the valve column, the valve element barrel and the valve element barrel and the auxiliary guide barrel, a conical stepped valve element and a continuous and smooth quasi-conical flow guide face can be formed, and the core technical problem of flow adjustment of the control valve under the working conditions of deep sea high pressure and high flow speed is accurately solved. The problems of flow velocity sudden rise, flow field disorder and valve element stress unbalance are fundamentally restrained, flow pre-adjustment and stable transition are achieved to avoid pressure fluctuation caused by flow sudden change, meanwhile, the slurry flow stability is greatly optimized, the impact face of a flow guide area is narrowed, impact energy is dispersed to relieve valve element surface erosive wear, and the service life of the valve element is prolonged. And structural integrity and long-term use reliability of the valve element are guaranteed.

1. Name of the designed product: scale model (offshore drilling cluster scene model). 2. Use of the designed product: for scale model. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view. 5. The bottom surface of the designed product is the part that is not easy to see or cannot be seen during use, and the top view is omitted.

The invention discloses a treating agent and a treating method for waste water-based drilling fluid, and belongs to the technical field of oil field waste drilling fluid treatment. Wherein the treating agent is composed of a gel breaker and a flocculating agent; the gel breaker is prepared from the following raw materials: 25wt%-30wt% of polyaluminum chloride, 0.1 wt%-0.2 wt% of cationic polyacrylamide and the balance of water. The flocculant is prepared from the following raw materials in percentage by weight: 1wt%-3wt% of poly dimethyl diallyl ammonium chloride, 0.5 wt% of a heavy metal stabilizer and the balance of water. According to the method, the waste drilling fluid can be quickly treated, the production requirements of an offshore drilling platform or a limited space can be met, meanwhile, the requirements of safety, environmental protection, water compatibility and the like are met, the problems of space occupation and cost caused by long-term storage and transportation of the waste drilling fluid are solved, and a method and a way are provided for green and quick offshore drilling. The method is suitable for treating the waste water-based drilling fluid in an offshore platform or other limited spaces.

This invention provides an AI monitoring method for drilling pipeline corrosion risk based on time-series data analysis, comprising the following steps: S1: Multi-source time-series data acquisition for offshore drilling platform drilling pipelines; S2: Raw data preprocessing and standardization; S3: Time-series data feature engineering and feature selection; S4: Corrosion risk labeling and dataset partitioning; S5: AI corrosion risk prediction model training; S6: AI model performance verification and optimization; S7: Real-time corrosion risk inference; S8: Corrosion risk early warning and data feedback; S9: Historical data review and model iterative optimization. This invention addresses the corrosion risk of offshore drilling platform drilling pipelines by constructing a full-process AI monitoring system of "data-driven - algorithm fusion - closed-loop iteration," aiming to achieve real-time and accurate identification, hierarchical early warning, and continuous optimization of corrosion risks, ensuring safe platform operation and maintenance while reducing maintenance costs.

The utility model relates to the technical field of offshore drilling platform installation, in particular to a drilling platform derrick lifting lug tool which comprises a lower clamping plate, an upper pressing plate, connecting side plates, wing plates, locking bolts and locking nuts. The outer side of the other end of the connecting side plate is perpendicularly connected with the wing plate, a first connecting hole is formed in the wing plate, second connecting holes corresponding to the first connecting hole in position are formed in the left side and the right side of the lower clamping plate respectively, and after the n-shaped structure connected with the upper pressing plate and the connecting side plate is arranged on the outer side of an I-shaped beam of a derrick in a sleeving mode, the lower clamping plate is pressed on the outer side of the I-shaped beam. The derrick fixing device has the advantages that the derrick fixing device is simple in structure, high in mounting speed and convenient to dismount, the derrick structure is not changed, the strength of the derrick structure is guaranteed, the performance is safe, the cost is saved, and the like.

The application provides a marine treatment device for offshore drilling waste, relates to the technical field of environmental protection equipment, and solves the technical problem that offshore drilling waste needs to be transported to land for treatment. The device comprises a water-based drilling waste treatment system, an oil-based drilling waste treatment system, a central control room, and a deck ship water-based drilling waste treatment system, an oil-based drilling waste treatment system and a central control room are arranged on the deck ship. The marine treatment device for offshore drilling waste provided by the application can complete the treatment of offshore drilling waste at sea, thereby solving the problem that offshore drilling waste can only be transported to land for treatment at present.

The present application relates to the technical field of offshore foundation construction, and discloses a method for drilling into a collapsed backfilling section of a near-shore rock-filled hole, comprising the following construction steps: 1) forming a concrete slab on a rock-filled layer at a construction site; 2) drilling a pre-drilled hole section in the concrete slab by a rotary drilling machine; 3) inserting a casing into the pre-drilled hole section; 4) rotating the casing into the rock-filled layer by the rotary drilling machine, and forming a collapsed area between the concrete slab and the rock-filled layer; 5) drilling a peripheral hole in the concrete slab and connecting the peripheral hole with the collapsed area; 6) backfilling the peripheral hole with peripheral clay to fill the collapsed area; 7) the rock-filled layer has in-hole rock filling and in-hole clay backfilling; 8) extruding the in-hole clay into the gap of the in-hole rock filling by a punching hammer in the casing, and synchronously crushing the in-hole rock filling until the punching hammer penetrates the rock-filled layer to form a rock-filled hole section, thereby avoiding further expansion of the collapsed area and realizing stable and efficient drilling construction effect.