43 results about "Interbedding" patented technology

The invention provides polyether amine alkyl glycoside with the structure as shown in the formula I; in the formula I, m is 1 to 16, n is 1 to 3, R1 is alkyl of which the carbon atomic number is 1 to 10 and R2 is methyl or ethyl. The invention provides a preparation method of polyether amine alkyl glycoside adopting the technical solution; the method comprises the following steps: reacting chlorinated epoxides, dihydric alcohol compounds, water and acid catalysts to obtain a reaction product; reacting the reaction product with organic amine to obtain an intermediate product; reacting the intermediate product with alkyl glycoside to obtain polyether amine alkyl glycoside. The polyether amine alkyl glycoside provided by the invention is good in inhibition performances and lubrication performances and can be applied to drilling fluid. Polyether amine alkyl glycoside is added in the drilling fluid, so that the problems of easy sloughing formation of strong water-sensitive shale, sandstone-mudstone interbedding and basalt-mudstone interbedding and the like can be solved by the drilling fluid. The polyether amine alkyl glycoside is suitable for well drilling construction of a shale gas horizontal well.

The invention discloses a construction method of a post-grouting squeezing and expanding combination cast-in-place bored pile, which is suitable for being adopted under a geological condition of soft and hard interbedding. The construction method comprises the following steps of (1) drilling construction; (2) squeezing and expanding bearing disk construction; (3) borehole cleaning; (4) arrangement of a post-grouting device and downward arrangement of a reinforcing case; (5) concrete spouting; (6) post-grouting construction at the pile end and the pile side. According to the construction method disclosed by the invention, a pile foundation post-grouting technology and a pile squeezing and expanding construction technology are organically combined, and the problems of increasing the single-pile bearing capacity and reducing post-construction settlement and differential settlement of a foundation pile under the geological condition of soft and hard interbedding are solved; the construction method is suitable for being used in the situation that high single-pile bearing capacity, low post-construction settlement and low differential settlement are required under the geological condition of soft and hard interbedding, and the construction cost can be reduced.

The present invention relates to a low permeable thin-interbedding fractured interval layering method. Said method includes the following steps: (1) defining effective barrier bed; (2) making restraining barrier protection, adopting low-displacement variable-displacement and low thickener concentration fracture treatment; and (3) making separate layer fracturing treatment. Said method can utilize interbed property, interbed thickness and core intersection to make division of fractured interval and can make the layer whose restraining barrier and oil layer earth stress difference value is greater than 4 MPa and restraining barrier thickness is greater than 2 m implement separate layer fracturing treatment.

The invention provides a three-dimensional memory preparation method, which comprises the following steps: providing a semiconductor device, wherein the semiconductor device comprises a substrate, a step structure and a flat layer, the step structure is arranged on the substrate and comprises a step part and a storage part, and the flat layer covers the substrate and the step structure; forming aninterbedding dielectric layer on the surface of the flat layer; forming a plurality of contact holes and a plurality of through holes which penetrate through the interbedding dielectric layer and theflat layer, wherein the contact holes correspond to the substrate and/or the step part, and the through holes correspond to the storage part; providing a conductive material, forming a contact in thecontact hole and forming a connector in the through hole. The preparation method according to the invention integrates the producing processes of the contact and the connector, greatly reducing the time and cost for producing the contact and the connector as well as the time and cost for producing the three-dimensional memory. The invention also provides a three-dimensional memory and an electronic device.

The invention provides a method for analyzing fluid factor sensibility. The method for analyzing the fluid factor sensibility comprises the steps that first, a sand shale interbedding model is constructed; second, fluid substitution is carried out; third, a plurality of fluid factors are selected; fourth, quantitative analysis of the fluid factor sensibility is conducted. According to the method for analyzing the fluid factor sensibility, the fluid factor sensibility is studied, the fluid substitution based on a Gassmann equation is achieved, and the compressional and shear velocity and density change of fluid saturated rocks after the fluid substitution can be analyzed in a quantitative mode; on this basis, the different fluid factors are selected, and the sensibility of the different fluid factors can be analyzed in a quantitative mode by calculating the sensitivity coefficient of the fluid factors.

The invention discloses a multi-wave AVO joint inversion method for a sand-shale thin interbed medium. The method comprises the following steps: for a complex thin interbed medium, adopting a VTI medium reflection coefficient equation proposed by Ruger, firstly using the pre-stack AVA corner gather to invert five parameters of an equivalent VTI medium, and then using the parameters of the VTI media and a relationship between its internal single-layer parameters and N/G to reverse the parameters of sandstone and mudstone in the thin interbed and the interbed structure N/G, wherein the result shows that the inversion can always achieve satisfactory effect for whether the VTI medium or the internal parameters of the thin interbed.

The invention discloses a construction method for an ultra-deep vibroflotation gravel pile of a complicated stratum. The method comprises the following steps: (1) doing construction preparation work; (2) carrying out pore-forming; (3) cleaning pores; (4) filling; (5) forming a pile: repeating the step (4) until materials are densely filled to a pile block. According to the construction method for the ultra-deep vibroflotation gravel pile of the complicated stratum, the construction problems of a large-power vibroflotation device, including hole embracing, slow construction speed, hole stringing and the like in the construction process of the complicated stratum of a medium-coarse sand powder-containing fine sand interlayer (an interbedding) and a round gravel powder-containing fine sand interlayer (the interbedding) with the size which is more than 15m, even more than 20m can be solved. Compared with a traditional construction method, the construction progress can be accelerated effectively, the construction efficiency is improved, the fault rate of equipment is reduced, and the cost is reduced.

The invention relates to the technical field of petroleum drilling and well cementation, in particular to a composite drill bit which comprises a PDC drill bit body and roller cones. The roller cones are installed on the PDC drill bit body. The roller cone and PDC composite drill bit is composed of the roller cones and PDC, the advantages of roller cone drill bits and PDC drill bits are combined, the aggressivity is high, the cutting efficiency is high, the mechanical drilling speed of the composite drill bit is 2-4 times higher than the roller cone drill bits when the composite drill bit operates on poor-drillability stratums (such as igneous rock and mud and sand interbeddings containing gravels), and the mechanical drilling speed and the rotation speed are in direct proportion. When a motor is adopted by the roller cone and PDC composite drill bit for drilling, the mechanical drilling speed is increased remarkably. Another advantage is reflected in the influences of the roller cones on drill bit dynamics, compared with the conventional PDC drill bits, the torque fluctuation degree can be reduced by as much as 50%, the torsional vibration degree is lowered under the low rotation speed condition, and the whirling vibration degree is lowered under the high rotation speed condition.

The invention belongs to the field of oil exploration, and particularly relates to a quantitative prediction method for different-scale fractures of a low-permeability reservoir under constraint of a rock mechanics layer, which comprises the following steps: establishing a single-well fracture development mode, establishing a well-connected fracture development mode, dividing fracture scales, performing a rock mechanics experiment, performing mechanical parameter logging interpretation and dynamic-static correction, dividing various levels of rock mechanical layer structures, establishing a three-dimensional geomechanical model, determining a key fracture forming period, performing three-dimensional ancient stress field simulation, deducing and establishing a soft and hard interbed rock multi-stage fracture criterion and a fracture parameter mechanical characterization model, and performing quantitative prediction on fractures of different scales of a low-permeability reservoir, and finally verifying the reliability of a crack quantitative prediction result through well point actual measurement data. According to the method, the multi-scale fracture parameters of the sand-mudstone interbed type low-permeability reservoir can be accurately obtained and quantitatively represented, the method is suitable for fracture quantitative prediction work of any stratified structure reservoir, and the risk and cost of exploration and development are reduced.

The invention discloses a novel diamond bit which comprises a bit body, a plurality of sector blocks and water gaps. The sector blocks are arranged on the bit body in a surrounding mode, and the water gaps are formed between every two sector blocks. The novel diamond bit further comprises through holes and pressure head type detachable cutting tools, the through holes are formed in the sector blocks, and the pressure head type detachable cutting tools are detachably installed in the through holes. Each sector block is provided with the multiple through holes, and all the through holes are distributed in a spiral line shape. The through holes in the sector blocks are distributed in a central symmetrical mode around the bit body. Rock powder is accumulated in the through holes, provides abrasives for working lip faces and is beneficial to eliminating matrix polishing. The part, probably being abraded abnormally, at the hole bottom of the diamond bit can be enhanced through the through holes and the pressure head type detachable cutting tools installed in the through holes, the efficiency for smashing rock is improved, the service life of the bit is effectively prolonged, the drilling speed is effectively increased, and the novel diamond bit can be applied to drilling in hard rock or soft and hard interbedding stratums and is wider in drillable stratum range.

The invention discloses a manufacturing method of breakstone clay core wall material. The manufacturing method comprises the following steps: (1) arranging a blending site for excavating an upper dam and a blending site for material preparation; (2) determining the size grading and moisture content of breakstone and clay, and then calculating to determine the mass ratio of the breakstone to the clay; (3) determining the paving thickness of each layer, the interbedding number and the material pile design pile height of the breakstone and the clay; (4) carrying out a small-scale blending test; (5) correcting the paving parameters according to the result of the small-scale blending test, and then carrying out large-scale paving and blending; (6) after paving, adopting a backdigger to cut out leftover material to form an excavation vertical face; and (7) adopting the backdigger to carry out excavation on the vertical face and repeated blending to obtain the breakstone clay core wall material. According to the manufacturing method, the blending method that the clay and the breakstone are alternately paved layer by layer and the backdigger excavates on the vertical plane is adopted, the civil engineering quantity is smaller, the blending technology is simple, economic and high in quality, and the breakstone clay core wall material is high in yield.

The invention relates to a two-stage cutting PDC bit. The two-stage cutting PDC bit comprises a bit body, and cutting blades are arranged on the bit body in the circumferential direction at intervals;fixed cutting teeth are mounted and arranged on the cutting blades along inner cones, nasal parts, shoulder parts and gauge-protection segments; and the fixed cutting teeth of the inner cones, the nasal parts and the shoulder parts on the cutting blades are arranged from inside to outside in an arrayed mode and cover the whole shaft bottom, so that cutting profile envelope curves of the fixed cutting teeth are formed. The two-stage cutting PDC bit is characterized in that all the fixed cutting teeth of the inner cones, the nasal parts and the shoulder parts on the cutting blades correspondingly form two groups of corresponding fixed cutting teeth, and two spaced cutting profile envelope curves are formed and are high in one and low in another. The two-stage cutting PDC bit can adapt to the drilling of interbedding of sandstone and dense mudstone, and not only can the mechanical drilling speed be ensured, but also the service life of the bit can be maintained.

The invention discloses a method for researching mechanical behaviors of soft and hard interbedded rock mass based on a 3D printing technology. The method comprises the following steps: 1, collecting samples of rock and a structural surface; 2, performing three-dimensional laser scanning on a natural soft and hard interbedded rock mass layer; 3, 3D printing of the rock-like material and manufacturing of a physical model; 4, carrying out a corresponding rock mechanical test; compared with a conventional sample preparation method, the method has the following advantages: the internal material of the 3D printing model is approximately homogeneous, so that the evolution rule of the damage of the 3D printing model is easier to observe during a test; soft and hard interbed rock mass models with different strengths are realized by controlling the glue concentration and the glue saturation in the 3D process; through scanning and extraction of a natural rock structural surface, 3D printing is adopted to reconstruct the natural structural surface, and the interface conditions of the soft and hard interbed rock mass can be reflected more truly.

The invention provides a method and device for analyzing the brittle cover layer closeness of a fault block entrapment, and the method comprises the steps: building a fault model of a target brittle cover layer section in a brittle cover layer section of a fault block entrapment of a sand-mudstone interbed stratum, and determining the lithological attributes of each layer section in the fault model; according to a preset sandstone filtering window size and the lithology attribute of each layer section, determining a calculation mode of a cover layer sealing factor of each layer section, and based on the calculation mode, calculating the cover layer sealing factor of each layer section; and according to the capping layer sealing factor of each layer section and the target brittle capping layer section sealing factor threshold value, achieving capping layer sealing performance analysis of the target brittle capping layer section on the section. The method and device can analyze the sealing performance of the brittle cover layer on the section, and are high in accuracy.

A sand-mud interbed type reservoir developmental zone earthquake prediction method based on big data analysis comprises the following steps: 1, building a mass sand-mud interbed type geologic model based on the deposition characteristics of a drilled reservoir, and obtaining a transition probability matrix; 2, constructing a 0-degree incident PP wave reflection seismic record of the model in a forward modeling algorithm and a 90-degree phase Ricker wavelet simulation model; 3, screening a model trace data set which is highly matched with the seismic record waveform of the actual stratum through a big data analysis technology, and carrying out normalization processing, and matching a record closest to the actual seismic waveform in the big data model according to a formula; and 4, obtaining quantitative prediction and characterization of the reservoir dominant developmental zone earthquake. According to the invention, seismic forward modeling is realized; moreover, the probability density distribution of the sand-to-ground ratio corresponding to the corresponding geologic model and the maximum single-layer sand body thickness is obtained through statistics, the reservoir development degree is indicated, and meanwhile, the uncertainty of interpretation is quantified.

The invention belongs to the field of soft and hard interbedding rock mass testing, and relates to a soft and hard interbedding rock test sample manufacturing device, comprising: a pre-pressing die, acutting and stacking unit and a pressing die. The invention further relates to a soft and hard interbedding rock test sample manufacturing method, utilizing the above method and comprising the following steps: preparing a soft layer mixed material; preparing a hard layer mixed material; preparing a soft layer material block and a hard layer material block; preparing a soft and hard interbedding material block; preparing a soft and hard interbedding compression block; and preparing a soft and hard interbedding rock test sample. By adjusting the distance between a load bearing plate and a material stacking port, the interbedding thickness of a soft and hard interbedding material can be conveniently controlled, the inclination angle of the soft and hard interbedding compression block with the horizontal plane is fixed after being solidified, a sample is extracted by using a core drilling machine, and the interbedding inclination angle can be controlled; and the manufacturing process is simple, the manufacturing efficiency is high, meanwhile, a single-layer material is carried and stacked in the manufacturing to ensure the integrity of a single-layer sample.

The invention belongs to the technical field of interbed rock mass simulation, and discloses a simulation method and system for simulating an interbed rock mass fluid-solid coupling numerical model and a processing terminal. The simulation method comprises the following steps: setting mechanical parameters of entities in a generated spatial range, and generating a wall body; generating spheres, and setting the density; balancing the particles through iterative calculation; importing CAD drawings capable of generating different rock stratum dip angles, layer thickness ratios and layer thicknesses; grouping the particles, so that different layers of the CAD are filled with the particles; deleting the left and right wall bodies; endowing different groups of particles with different parallel bonding parameters, simulating rock mass attributes of different layers, and achieving the purpose of fluid-solid coupling by performing data exchange operation with OpenFoamt. The definition and simulation method of the interbed rock mass can be realized in software. According to the method, particle flow numerical simulation is adopted to analyze interbed rock mass mechanical property response rules and mesoscopic failure characteristics under the action of factors such as a rock mass dip angle, a layer thickness ratio and layer thickness from a mesoscopic perspective.