45results about How to "Meet the needs of drilling" patented technology

The invention provides a water-based drilling fluid suitable for shale gas development. The water-based drilling fluid is prepared from the following raw materials in volume on the basis of water: 100 percent of water, 2 to 6 percent of lubricating agents, 1 to 5 percent of inhibitors, 1 to 5 percent of blocking anti-collapse agents, 1 to 5 percent of shale blocking agents, 1 to 5 percent of nanometer blocking agents, 1 to 3 percent of fluid loss additives, 1 to 3 percent of additives, 0 to 0.4 percent of shearing potentiator, 0.1 to 0.6 percent of pH regulator and 0 to 300 percent of weighting agents. The water-based drilling fluid has low filter loss, shale cracks can be effectively blocked, and the stability of a well wall is increased; the lubricating performance is good, and the problems of friction and torque caused by a shale gas horizontal well are preferably solved; the rheological property is excellent.

A continuous monitor method for oil well includes: sampling the gas at the spigot line; after de-dust and de-water procedure, the gas flow through a flow meter and monitor system to the analysis instrument; the analysis data is collected and sent to a PC module, so to realize auto-monitor, analysis and comparison.

The invention relates to a tooth implantation drilling robot based on a small cavity. The robot comprises a bearing chassis, a mechanical arm, a clamp, a drilling executor, a control box, a chassis turbine box and a driving arm base. The lower portion of the chassis turbine box is fixed to the bearing chassis. The upper portion of the chassis turbine box is connected with the driving arm base. The upper portion of the driving arm base is provided with a connection hole. The control box is connected with an external computer through a wire and meanwhile fixed to the chassis turbine box. One end of the mechanical arm is connected with the connection hole in the driving arm base. The other end of the mechanical arm is connected with one end of the clamp. The other end of the clamp is connected with the drilling executor. The tooth implantation drilling robot is characterized in that the drilling executor comprises a medical special brushless motor, a speed reducer, a rear axle housing, a front axle housing, a machine head shell, a drill bit, a small connecting rod, a crank, a large connecting rod, a rear transmission shaft, a front transmission shaft, a bevel gear, a one-piece gear spindle and a universal joint pin. The medical special brushless motor is connected with one end of the rear transmission shaft through the speed reducer, and the other end of the rear transmission shaft is connected with one end of the front transmission shaft through the universal joint pin.

The invention provides a tackifier, a drilling fluid containing the tackifier, and a stock solution of the drilling fluid. The tackifier is characterized by being able to be passivated and activated. The stock solution of the drilling fluid consists of water, bentonite, polyanion cellulose, xanthan gum, the tackifier and a passivator at the mass part ratio of (85-90) to (4-6) to (0.4-0.6) to (0.3-0.4) to (6-10) to (0.2-0.3). The drilling fluid consists of the stock solution, an activating agent and water at the mass part ratio of (35-85) to (0.2-0.3) to (15-16). The drilling fluid consists of a water solution of the stocking solution and the activating agent, and under the action of the reactivating agent, the passivated tackifier is activated to play a role of tackifying, thereby making up the declination of viscous force and shearing force of the drilling fluid due to dilution of a large quantity of water, and further meeting the requirements on drilling on a deep-water surface.

The invention relates to water-based drilling fluid for a shale horizontal well. The water-based drilling fluid comprises a reverse wetting agent. The invention further relates to a preparation method of the water-based drilling fluid.

The invention discloses a dynamic push-abutting type rotary motor used by cooperating with a drill bit. Power is supplied to the drill bit at the position near the drill bit, the drilling rate can beeffectively increased, and the dynamic push-abutting type rotary motor can be used for various drilling technologies such as deep drilling, vertical drilling and a large-displacement horizontal well.The dynamic push-abutting type rotary motor comprises an outer pipe, an upper connector, an upper support, an upper centering ring, a rotor assembly, a sealing rod, a stator, a flow distribution valve, a lower supporting ring, a lower support, a connecting shaft, a connecting sleeve, a lower connector and a main shaft; and the rotor assembly comprises a rotor body and four rotor pushing blocks, and a reset block is arranged between the stator and the rotor assembly. According to the dynamic push-abutting type rotary motor, all the parts are metallic parts and high-temperature-resistant parts,and therefore the dynamic push-abutting type rotary motor can be used in a high-temperature environment at 250 DEG C or above. A volumetric fluid pressure transfer mechanism is applied in the workingprocess of the motor, the advantages of a screw motor are inherited well, no rubber part is used for sealing, and therefore the service life of the motor is effectively prolonged.

This invention relates to an asynchronous motor including a centrifugal fan and a fan filter fixed on the top of a base, a junction box fixed on both sides of the base and a heater fixed on the base bottom, in which, the filter layer of the filter is improved so as to increase filter effect, three-phase copper lines are fixed in the box to increase current density, an anti-explosion structure is added in the heater to suit the worse situation of oil wells.

The invention provides a high-temperature-resistant and high-salt-resistant micro-crosslinking hydrophobic association tackifying filtrate reducer for a water-based drilling fluid and a preparation method of the high-temperature-resistant and high-salt-resistant micro-crosslinking hydrophobic association tackifying filtrate reducer. The tackifying filtrate reducer is prepared by copolymerizing a comonomer, a cross-linking agent, a cosolvent and an initiator in water, the comonomer comprises a vinyl monomer, sodium p-styrenesulfonate, maleic anhydride and a long hydrophobic chain ester monomer; wherein on the basis of 100 parts by weight of water, the comonomer accounts for 20-45 parts, and the cosolvent accounts for 0.5-1.5 parts; the mass of the cross-linking agent is 0.4-2% of the mass of the comonomer; and the mass of the initiator is 0.2-0.5% of the mass of the comonomer. The invention also provides a preparation method of the filtrate reducer. Under the high-temperature and high-salt conditions, the viscosity-increasing and filtrate-reducing agent can effectively reduce the filter loss of the drilling fluid, improve the viscosity of the drilling fluid and maintain the rheological stability of the drilling fluid, and can be applied to deep high-salt-content stratum oil and gas drilling.

The invention discloses circulated stable foams and relates to the technical field of foams in industries such as petroleum and gas exploitation, mining, and the like. The circulated stable foams comprise a base fluid and a de-foaming agent, wherein the base fluid comprises following components in parts by weight: 0.5-1.5 parts of foaming agent, 0.1-0.3 parts of stabilizing agent, 6-8 parts of inhibitor, 1-3 parts of wetting reversal agent and 100 parts of water; the de-foaming agent is silicone oil emulsion type de-foaming agent; and the percent by volume of the base fluid and the de-foamingagent is 0.066-0.068%. By using the circulated stable foams provided by the invention, the economical efficiency and applicability of the foam drilling can be increased and stabilized and the environmental pollution caused by the foams can be reduced.

The invention discloses a matched drill boom facility of a mining equipment bucket, relates to the technical field of equipment processing, and solves the problems that repeated positioning errors easily occur during the processing of existing bucket lug plate holes, the form and location tolerance of the bucket lug plate holes is influenced, and the bucket lug plate holes are inconsistent. The matched drill boom facility comprises a drill boom body, wherein the top of the left side of the drill boom body is fixedly connected with a group of drilling driving pieces, a group of drilling middle transmission transverse shafts are rotationally connected into the drill boom body, and four groups of drilling bases are uniformly arranged at the lower part of the drilling boom body. By arranging the four groups of drilling bases, four groups of holes in a vertical plate can be drilled at the same time, the working efficiency is improved, meanwhile, repeated positioning errors are avoided, the machining precision is guaranteed, the problem that bucket lug plate holes are inconsistent is effectively solved, meanwhile, the distances between the four groups of drilling bases are evenly adjusted and can be adjusted according to needs in use, machining of buckets of different models is met, practicability is improved, and adjusting operation is easy.

The invention provides an underground power drilling bit device, and relates to the technical field of energy drilling. The underground power drilling bit device includes fuel batteries, a heating device, a pressurization device, and a drilling bit; the fuel batteries are used for receiving the hydrogen and the oxygen which are conveyed by an external portion, and allowing the hydrogen and the oxygen to perform reaction so as to release heat and electric energy; the heating device is used for absorbing the heat to perform heating on a drilling fluid, and forming supercritical drilling fluid to accelerate drilling at a specific temperature and pressure; and the pressurization device is used for pressurizing the gasified drilling fluid under the action of the electric energy, and ejecting the pressurized drilling fluid via the drilling bit so as to perform jet drilling. The underground power drilling bit device can achieve high-efficient and rapid drilling, can reach a greater drilling depth, and can meet the demand of drilling currently.

The invention discloses a low-corrosion low-solid phase high-inhibition drilling fluid and a preparation method thereof. The low low-corrosion low-solid phase high-inhibition drilling fluid comprises the following materials in percentage by weight: 10%-20% of soluble weighting agents, 0.1%-0.3% of viscosifiers, 0.5%-1.0% of fluid loss additives, 0.1%-0.3% of alkalinity control agents, 0.5%-0.8% of deoxidizers, 0.1%-0.2% of inhibitors, 0.03%-0.05% of preservatives and the balance of water. The low low-corrosion low-solid phase high-inhibition drilling fluid disclosed by the invention has good liquid-phase weighting capability, realizes the low-solid phase and high-inhibition characteristic and can solve the corrosion problem of the traditional drilling tool due to a low-corrosion characteristic.

The invention provides a gathering pipeline hole drilling device and a using method. The product comprises a bottom elastic arc plate which is connected with a left front limiting plate and a right front limiting plate; the left front limiting plate and the right front limiting plate are connected through a front limiting plate; a front elastic arc plate is provided with a front fixed screw hole; the front limiting plate is provided with a front positioning screw hole; after the front elastic arc plate and the bottom elastic arc plate are adjusted, the front positioning screw hole and the front fixed screw hole coincide with each other and are fixed through a front hand screwing screw; the bottom elastic arc plate is connected with a left rear limiting plate and a right rear limiting plate which are connected through a rear limiting plate; a rear elastic arc plate is provided with a rear fixed screw hole, the rear limiting plate is provided with a rear positioning screw hole; and after the rear elastic arc plate and the bottom elastic arc plate are adjusted, the rear positioning screw hole and the rear fixed screw hole coincide with each other and are fixed through a rear hand screwing screw; and the bottom elastic arc plate, the front elastic arc plate and the rear elastic plate are each provided with a hole drilling positioning hole, and the hole drilling positioning holes are used in cooperation with a drill bit. The gathering pipeline hole drilling device is used for gathering pipeline hole drilling.