CN115847852A - Comprehensive application method of novel composite or reinforced carbon fiber material in drilling equipment and configuration aspects - Google Patents
Comprehensive application method of novel composite or reinforced carbon fiber material in drilling equipment and configuration aspects Download PDFInfo
- Publication number
- CN115847852A CN115847852A CN202211352044.1A CN202211352044A CN115847852A CN 115847852 A CN115847852 A CN 115847852A CN 202211352044 A CN202211352044 A CN 202211352044A CN 115847852 A CN115847852 A CN 115847852A
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- drilling
- resin
- composite material
- curing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a carbon fiber composite material, a preparation method thereof and application thereof in geological drilling equipment. The composite of the carbon fiber and the auxiliary material is formed by compounding the carbon fiber and the auxiliary material. The carbon fiber composite material can be applied to geological drilling equipment, the prepared drilling setting component has good mechanical property and meets the drilling requirement, the weight of the drilling setting component is 1/4-1/5 of that of the traditional metal component, the transportation portability is improved, and the corrosion resistance of the drilling component is improved.
Description
Technical Field
The invention relates to the technical field of light composite materials and drilling equipment, in particular to a carbon fiber composite material, a preparation method thereof and application thereof in geological drilling equipment.
Background
Diamond drilling starts in 1862 years, and drilling rods, drilling machines, water pumps, screwing tools and the like for drilling are made of metal materials for more than one hundred years, metal drilling equipment is heavy in weight, low in strength and low in use durability, a large amount of manpower and material resources are consumed in equipment transportation, and particularly drilling operation in high mountain areas is difficult in equipment transportation and high in construction operation risk, so that light weight of the drilling equipment is the central importance of research in the field.
The invention aims to develop a carbon fiber composite material and apply the carbon fiber composite material to geological drilling equipment so as to realize light weight of the drilling equipment.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, it is an object of the present invention to provide a carbon fiber composite material, a method for its preparation and its use in geological drilling equipment.
To achieve the above and other related objects, a first aspect of the present invention provides a carbon fiber composite material comprising a composite of carbon fibers selected from a carbon fiber woven preform, chopped carbon fibers, or carbon fiber powder, and an auxiliary material selected from at least one of a thermosetting resin, metal powder, or diamond; the composite of the carbon fiber and the auxiliary material is formed by compounding the carbon fiber and the auxiliary material.
The carbon fiber of the first carbon fiber composite material is selected from carbon fiber woven preforms, and the auxiliary material is selected from thermosetting resin. The carbon fiber of the second type of carbon fiber composite material is selected from chopped fibers, and the auxiliary material is selected from thermosetting resin; the carbon fiber material of the third type carbon fiber composite material is selected from carbon fiber powder, and the auxiliary material is selected from metal powder and diamond.
In a second aspect, the present invention provides a method for preparing a carbon fiber composite material, wherein the carbon fiber and the auxiliary material are mixed and then cured or sintered in a mold.
In a third aspect, the present invention provides the use of the above-described carbon fiber composite material in geological drilling equipment or a component for geological drilling equipment.
A fourth aspect of the invention provides a geological drilling component as defined above, the main material of said component being a carbon fibre composite as defined above.
According to a fifth aspect of the invention, there is provided geological drilling equipment, wherein the main material of at least one part of the geological drilling equipment is the carbon fiber composite material, and the part is selected from one, more or all of the geological drilling parts.
Drawings
FIG. 1 is a schematic view of a carbon fiber composite drill pipe with joints and joints according to the present application;
FIG. 2 is a schematic view of a drill rod prepared according to an embodiment of the present application.
The mark in the figure is:
1. a male joint of a steel drill rod body; 2. a carbon fiber composite structure drill rod body; 3. the steel body female joint of boring a body.
Detailed Description
The invention aims to provide a light carbon fiber composite structure which can be applied to geological drilling equipment, wherein the weight of a prepared drilling setting component is 1/4-1/5 of that of a traditional metal component, and the transportation portability is improved. In addition, the prepared part has good mechanical property and meets the drilling requirement. The diamond bit metal matrix is added with carbon fibers, so that the wear resistance of the matrix is improved, the carbon fibers have good corrosion resistance, the ocean drilling effect can be fully exerted, and the boosting force is directed to the blue ocean industry. On the basis of this, the present invention has been completed.
A first aspect of the present invention provides a carbon fiber composite material for geological drilling equipment, comprising a composite of carbon fibers selected from a carbon fiber woven preform, chopped carbon fibers, or carbon fiber powder, and an auxiliary material selected from at least one of a thermosetting resin, metal powder, or diamond; the composite of the carbon fiber and the auxiliary material is formed by compounding the carbon fiber and the auxiliary material. In addition, other materials may be added to the carbon fiber composite material as necessary.
In some embodiments, the carbon fibers are selected from carbon fiber woven preforms and the auxiliary material is selected from thermosetting resins; and/or, at least one of the following technical features is included: the carbon fiber woven prefabricated body is formed by weaving carbon fibers in a two-dimensional mode or weaving the carbon fibers in a three-dimensional mode; the carbon fiber adopted by the carbon fiber woven preform is selected from at least one of T700, T800, T1000, M40, M55 and M60, and the fiber mixing proportion is flexibly adjusted according to the design requirement of the rod body; the thermosetting resin is at least one of epoxy resin, phenolic resin, unsaturated polyester resin, urea resin, organic silicon resin, bismaleimide resin or thermosetting polyimide resin, and the curing and forming of the thermosetting resin and the carbon fiber are flexibly designed according to a specific curing process system of the modified resin.
In some embodiments, the carbon fiber two-dimensional weave is selected from at least one of a plain weave, a twill weave, or a satin weave; the three-dimensional weaving mode of the carbon fiber is at least one of three-dimensional four-direction weaving, three-dimensional five-direction weaving, three-dimensional six-direction weaving or three-dimensional seven-direction weaving.
In some embodiments, the method of composite molding is selected from curing molding or sintering molding.
When the auxiliary material comprises thermosetting resin, the composite forming method is curing forming and/or the mass content of the thermosetting resin in the carbon fiber composite material is 30-50%, and optionally 30-35%, 35-40%, 40-45% and 45-50%.
When the auxiliary material does not contain thermosetting resin, the composite molding method is sintering molding and/or the mass ratio of the auxiliary material to the carbon fiber in the carbon fiber composite material is (99-100): (1.5-0.5).
The second aspect of the present invention provides a preparation method of the above composite material, which comprises mixing the carbon fibers and the auxiliary material, and then curing or sintering in a mold.
Specifically, the preparation method of the first carbon fiber composite material comprises the steps of 1-1) weaving carbon fiber woven preforms by using carbon fibers of continuous tows, and 2-1) curing and molding the carbon fiber woven preforms and thermosetting resin in a structural mold; the preparation method of the second type of carbon fiber composite material comprises the steps of 1-2) adopting chopped fibers as raw materials, and 2-2) curing and molding the chopped fibers (6-9 mu m) and thermosetting resin in a structural mold; the preparation method of the third type carbon fiber composite material comprises the following steps: 3-1) providing a drill bit die, and 3-2) mixing metal powder, diamond and carbon fiber powder, putting the mixture into the die, and sintering and forming.
More specifically, the curing molding adopts a multi-stage curing process; preferably, the resin is cured in a rotary curing furnace according to a three-section curing system, wherein the three-section curing system is as follows: 50-80 deg.C, 100-150 deg.C, 70-80 deg.C, each stage heating rate is 0.5-2 deg.C/min, optionally 0.5-1 deg.C/min, 1-1.5 deg.C/min, 1.5-2 deg.C/min, curing time is 20-200min, 10-150min and 10-200min, optionally 20-50min, 10-50min or 50-100min, 50-100min and 50-100min, or 100-200min, 100-150min and 100-200min. The part obtained by adopting the formula and the curing process has good mechanical property.
Taking a drill rod as an example, the preparation method comprises the following steps:
1. raw materials: the proportion of the carbon fiber and the epoxy resin is adjusted according to the design requirement.
(1) Threading: and the carbon yarn passes through the yarn comb, the rubber groove and the guide roller once through the creel and enters the filament nozzle of the winding machine.
(2) Treating the die: coating silicone grease or a release agent.
2. Molding: the initial setting of each stroke of the winding machine is carried out before forming, so that the working space of the trolley and the extending arm is the most effective, and the operation safety is ensured.
(1) The process comprises the following steps: running a winding control program, newly building a pipeline engineering file, setting the yarn group number, the resin content, the fiber density, the yarn sheet width and the resin density in a material parameter menu, setting the tension by a computer, and setting the distance between the surfaces of the yarn nozzle and the yarn core gathering mold, and starting a winding experiment after determining.
(2) And (3) curing: the resin is cured in a rotary curing furnace according to a designed multi-section curing system, three stages of 50-80 ℃, 100-150 ℃ and 70-80 ℃ can be set, the temperature rise rate of each stage is 0.5-2 ℃/min, and the curing time is 20-200min, 10-150min and 10-200min respectively.
3. Machining: and after the integral curing is finished, machining the carbon fiber part to the required size by using the belt die, and demolding to form the final delivery product.
4. Nondestructive testing: and carrying out X-ray nondestructive testing on the carbon fiber drill rod, and mainly detecting whether the joints and the barrel sections have defects such as folds, layers, bubbles and the like.
Other components are set by adopting a method similar to a drill rod according to different required parameters.
Taking the preparation of a matrix diamond drill bit as an example, a drill bit mold is provided; and mixing metal powder, diamond and carbon fiber powder, putting the mixture into the drill bit die, and sintering to obtain the matrix diamond drill bit.
Taking a diamond bit with a nominal caliber and a carbon fiber matrix as an example, the outer diameters of the diamond bit are phi 152mm, phi 122mm, phi 96m, phi 76mm, phi 60mm and phi 48mm respectively, and the inner diameters of the diamond bit can be selected according to a drilling method. Firstly, designing and manufacturing a graphite mold of a drill bit. Pouring metal powder and metal powder containing artificial diamond and carbon fiber powder into a graphite bottom die in proportion, and heating in a high-temperature furnace at the sintering temperature of 800-1000 ℃. Preserving heat for 10 minutes, cooling to 600-800 ℃, taking out and placing in a heat preservation box for slow cooling. The added carbon fiber is chopped fiber with the length of 5-9 microns. Wherein the mass ratio of the metal powder to the carbon fiber is as follows: (98.5-99.5): (1.5-0.5); the carbon fiber is chopped fiber with the length of 5-9 μm.
The third aspect of the invention provides an application of the carbon fiber composite material in geological drilling equipment or a part for the geological drilling equipment, wherein the part for the geological drilling equipment is selected from a drill rod and a drill tower; a vertical shaft, a winch, a gearbox and a frame of the drilling machine; the device comprises a mast of the full hydraulic power head drilling machine, a winch, a chassis and a power head; a matrix diamond drill bit; an outer core tube, an inner core tube; casing, double-barrelled drilling tool.
A fourth aspect of the present invention provides a geological drilling component as defined above, the main material of said component being the carbon fiber composite as defined above, said component being selected from: drill rods, drilling towers; a vertical shaft, a winch, a gearbox and a frame of the drilling machine; a mast, a winch, a chassis and a power head of the full hydraulic power head drilling machine; a matrix diamond drill bit; an outer core barrel, an inner core barrel; casing, double-barrelled drilling tools;
and/or the outer layer of the component is also provided with a wear-resistant layer, preferably, the wear-resistant layer is made of polycrystalline diamond or hard metal, preferably chromium or nickel metal; still preferably, the thickness of the wear-resistant layer is 0.1 to 0.25mm, optionally 0.1 to 0.2mm or 0.2 to 0.25mm, and more preferably, the polycrystalline diamond is formed by ultrahigh-pressure synthesis of diamond with a diameter of 2.5 x 4mm.
Specifically, the method comprises the following steps:
1) The carbon fiber composite material is applied to a geological drill rod, and the composite material is used as a reinforcing structure for a main body of the drill rod. The carbon fiber is selected from a carbon fiber woven preform, the carbon fiber of a continuous tow adopted by the carbon fiber woven preform can be selected from any one or more of T700, T800, T1000, M40, M55, M60 and the like, and the fiber mixing proportion can be flexibly adjusted according to the design requirement of the drill rod. The carbon fiber woven preform can be formed by two-dimensional or three-dimensional weaving, wherein the two-dimensional weaving can adopt plain weave, twill weave and satin weave modes of single or mixed fibers, and the three-dimensional weaving can adopt any one or more weaving modes of three-dimensional four-direction, three-dimensional five-direction, three-dimensional six-direction and three-dimensional seven-direction. The auxiliary material adopts a thermosetting resin matrix, specifically, any one of epoxy resin, phenolic resin, unsaturated polyester resin, urea resin, organic silicon resin, bismaleimide resin, thermosetting polyimide resin and the like can be adopted as a main resin raw material, and the curing and forming of the carbon fiber woven preform is flexibly designed according to a specific curing process system of modified resin.
In addition, the drill rod is of two types, namely a direct connection drill rod and a drill rod with a joint, and a special processing mold for the drill rod body and the steel joint is designed according to the required specification and size. The carbon fiber composite drill rod body and the steel joint are in threaded connection, the thread clearance is 0.1-0.2mm, the resin is ensured to be effectively in adhesive connection, and thermosetting resin adhesive is adopted for connection; the drill rod body made of the carbon fiber composite material and the steel connector threads are double-thread threads with different pitches, and the metal end is connected with the drill rod body made of the carbon fiber composite material and then is coated with metal particles on the surface of the drill rod body to be embedded, so that the wear resistance is improved.
2) The carbon fiber composite material is applied to geological drilling towers, particularly geological drilling four-leg drilling towers, and the common heights of the carbon fiber composite material are 18m, 25m, 30m and 50m. The drilling tower main body, the drilling tower legs, the drilling tower inclined strut, the drilling tower base and the like can all adopt the carbon fiber composite structure, specifically, the carbon fiber composite structure is formed by processing a carbon fiber woven prefabricated body and a thermosetting resin matrix, and the carbon fiber woven prefabricated body and the curing forming of the carbon fiber woven prefabricated body are flexibly designed according to a specific curing process system of modified resin.
3) The carbon fiber composite material is applied to geological drilling towers, in particular to drilling machines. The method can be used for manufacturing drilling machines with different specifications of 10m, 20m, 30m, 50m, 100m, 300m, 500m, 1000m, 2000m, 5000m and 10000m, and can also be used for manufacturing vertical shaft type drilling machines, power head full hydraulic drilling machines, fixed drilling machines and movable drilling machines, and all parts of a material drilling machine, such as a vertical shaft, a winch, a gearbox and a frame of the drilling machine, can be processed by adopting carbon fiber woven preforms and thermosetting resin matrixes.
4) Carbon-fibre composite uses in geological drilling outer rock core pipe, and is specific, the rock core outer tube includes: the single-layer core tube, the outer tube of the M-shaped double-tube drilling tool, the outer tube of the T-shaped double-tube drilling tool, the outer tube of the CT-shaped rope core drilling tool and the outer tube of the CP-shaped rope core drilling tool can be processed by adopting carbon fiber woven preforms and thermosetting resin matrixes.
5) Carbon-fibre composite uses in geological drilling inner core pipe, and is specific, common rock core inner tube includes: the inner tube of the M-shaped double-tube drilling tool, the inner tube of the T-shaped double-tube drilling tool, the inner tube of the CT-shaped rope core drilling tool and the inner tube of the CP-shaped rope core drilling tool can be processed by adopting a carbon fiber woven preform and a thermosetting resin matrix.
6) Carbon fiber composite materials are used in geological drilling casings, and in particular, commonly used geological casings include: phi 57.5mm, phi 73.5mm, phi 89.5mm, phi 108.5mm, phi 127.5mm and phi 146.5mm, and is processed by a carbon fiber woven preform and a thermosetting resin matrix.
7) The carbon fiber composite material is applied to the geological double-pipe drilling tool, and particularly, the carbon fiber geological double-pipe drilling tool comprises a common double-pipe drilling tool and a rope double-pipe drilling tool. According to the type of the double-pipe drilling tool, the elastic clamping plate, the suspension ring, the seat ring, the outer pipe, the inner pipe and the centralizing ring can be processed by adopting a carbon fiber woven prefabricated body and a thermosetting resin matrix.
According to a fifth aspect of the invention, there is provided geological drilling equipment, wherein the main material of at least one part of the geological drilling equipment is the carbon fiber composite material, and the part is selected from one, more or all of the geological drilling parts. Other component materials, such as metal connectors, are also included.
The drilling equipment provided by the invention generally comprises conventional geology, ore-finding drilling, tunnel ore-finding (blind ore, gas and karst water detection), space celestial body drilling, coastal, middle and deep sea drilling (light weight and corrosion prevention), marine semi-submersible drilling, marine deep submersible drilling, middle and deep part drilling, mountainous regions (mountain and deep mountain drilling), oil drilling, scientific drilling, hydrologic engineering drilling, constructional engineering drilling, underground power head drilling, underground directional drilling, vehicle-mounted machine drilling and the like. Even heavy helicopters (drop-off equipment, temporary shelters), light helicopters (transportation personnel and tools), laying carbon fiber cables, etc.
The following examples are provided to further illustrate the advantageous effects of the present invention.
In order to make the objects, technical solutions and advantageous technical effects of the present invention more clear, the present invention is further described in detail below with reference to examples. However, it should be understood that the embodiments of the present invention are only for explaining the present invention and are not for limiting the present invention, and the embodiments of the present invention are not limited to the embodiments given in the specification. The examples were made under conventional conditions, or conditions recommended by the material suppliers, without specifying specific experimental conditions or operating conditions.
Furthermore, it is to be understood that one or more method steps mentioned in the present invention does not exclude that other method steps may also be present before or after the combined steps or that other method steps may also be inserted between these explicitly mentioned steps, unless otherwise indicated; it is also to be understood that a combined connection between one or more devices/apparatus as referred to in the present application does not exclude that further devices/apparatus may be present before or after the combined device/apparatus or that further devices/apparatus may be interposed between two devices/apparatus explicitly referred to, unless otherwise indicated. Moreover, unless otherwise indicated, the numbering of the various method steps is merely a convenient tool for identifying the various method steps, and is not intended to limit the order in which the method steps are arranged or the scope of the invention in which the invention may be practiced, and changes or modifications in the relative relationship may be made without substantially changing the technical content.
Example 1
An example of applying a carbon fiber composite material to a drill rod is provided:
the drill rod made of the carbon fiber composite material shown in fig. 1 comprises a male connector 1 of a steel drill rod body, a drill rod body 2 of a carbon fiber composite structure and a female connector 3 of the steel drill rod body. The preparation process of the carbon fiber composite structure drill rod body 2 comprises the following steps:
1) Selecting a T700 carbon fiber raw material, and preparing a three-dimensional four-way woven structure fiber preform by adopting a three-dimensional weaving technology.
2) And (2) soaking the prepared three-dimensional four-way carbon fiber preform in a liquid dipping tank for 60-120min in a liquid phase dipping mode, fully soaking the fiber preform in thermosetting epoxy resin, and controlling the mass content of the final resin to be 45%.
3) And (3) placing the T700 three-dimensional woven preform impregnated with the resin in a rotary curing oven for subsequent curing and forming.
4) The rotary curing furnace is used for curing at three stages of 50 ℃, 100 ℃ and 70 ℃, the temperature rise rate of each curing stage is 1 ℃/min, the curing time of each curing stage is 25min, 50min and 20min, and finally the drill rod body made of the carbon fiber composite material is prepared.
Example 2
The preparation process of the carbon fiber composite drill rod body 2 comprises the following steps:
1) T700 carbon fiber raw material with the short cutting length of 6 mu m is selected.
2) The T700 carbon fiber with the short cut length of 6 mu m and the thermosetting epoxy resin are fully soaked and mixed in a mechanical stirring way, and the final resin mass content is 45 percent.
3) And (3) placing the T700 chopped carbon fiber impregnation raw material into a specific drill pipe forming die for subsequent curing forming.
4) The rotary curing furnace is used for curing at three stages of 50 ℃, 100 ℃ and 70 ℃, the temperature rise rate of each curing stage is 1 ℃/min, the curing time of each curing stage is 25min, 50min and 20min, and finally the drill rod body made of the carbon fiber composite material is prepared.
Test and test
The drill rods prepared in examples 1 and 2 above had a diameter of 71.2mm, a length of 956mm and a density average of 4.01g/cm 3 The intensity-gravity ratio average is 245807. And after nondestructive testing, carrying out mechanical testing on the drill rod:
1) In the torsion resistance test, other abnormal conditions do not exist, and the diameter and the length of the drill rod are not changed after the drill rod is placed for 24 hours.
2) Carrying out 100-200kN and 300-1200kN two-level tensile tests, wherein 100-200kN load simulation tests are carried out on tensile conditions of self weight of a drill rod and resistance in a hole in the drilling process of a 100-meter composite drill rod column; the 1200kN load simulation test has the tensile condition with the safety coefficient of 2.5. YN-1500D was used as the test equipment.
The test was gradually increased from 100kN to 1200kN, and the data measured at 209 N.m and 1200 N.m were as follows:
in the tensile test, no other abnormal conditions exist, and the diameter and the length of the drill rod are not changed after the drill rod is placed for 24 hours.
3) Carrying out 100-200kN and 200-300kN two-level compression tests, wherein the 100-200kN load simulation test is used for simulating compression conditions of drilling pressurization and self weight of a drill rod in the drilling process of a 100-meter composite drill rod column; the 200-300kN load simulation test has the compression resistance condition with the safety coefficient of 1.5. YN-1500D was used as the test equipment.
The test was gradually boosted from 100kN to 300kN, with the following measured data at 190kN and 300 kN:
in the 30KN compression test process, the diameter is averagely increased by 0.1mm, and the use requirement is met.
Comparative example 1
A ZT850 grade steel metal drill rod with the diameter of 71.2mm and the length of 956mm is adopted.
And (3) knotting: through tests, compared with ZT850 steel drill rod, the carbon fiber composite drill rod has equivalent mechanical property parameters such as tensile strength, compressive strength, strength-to-weight ratio, density, thickness and the like, and some are superior to steel drill rods. The pressure resistance is slightly lower than that of a steel drill rod, and the use is not influenced. The carbon fiber series can be completely re-optimized without regard to cost. The dispersion coefficients are within 5 percent, and the use requirements can be met.
Example 3
An example of the application of a carbon fiber composite material to a rig component is provided:
four tower legs of the drilling tower are made of carbon fiber composite pipes of a phenolic resin matrix with the reinforced mass content of 40% woven by T700 plain weave with the outer diameter of 102mm and the inner diameter of 90mm, the tower legs are connected by steel hoops, the lower three layers of cross braces are made of composite pipes of a epoxy resin matrix with the reinforced mass content of 33% woven by T800 carbon fiber in three-dimensional four-way with the diameter of 102/90mm, the rest cross braces are made of pipes of unsaturated polyester resin with the reinforced mass content of 38% woven by T1000 carbon fiber in three-dimensional five-way with the diameter of 60/50mm, and the cross braces are fixed on the steel hoops by bolts. The drill tower inclined strut is formed by weaving T700 carbon fiber twill with the diameter of 20mm and reinforcing a carbon fiber composite rod with the epoxy resin with the mass content of 45%. The lower base of the drilling tower is made of cubic square wood, and the upper base is made of M55 carbon fiber twill woven carbon fiber composite square columns with the reinforced mass content of 39% of epoxy resin.
After nondestructive testing, the mechanical testing performance is good.
Example 4
The method comprises the steps of preparing a vertical shaft drilling machine part made of a 1000 m-high carbon fiber composite material, firstly preparing an equipment part mold according to the specification requirement of a vertical shaft drilling machine, then forming a preform by adopting T800 carbon fibers in a three-dimensional five-direction weaving mode, and then curing and molding the preform and bismaleimide resin in a special mold according to the mass content of a matrix of 44% to prepare the vertical shaft drilling machine equipment part.
After nondestructive testing, the mechanical testing performance is good.
Example 5
The method comprises the steps of preparing a 1000 m-high carbon fiber composite full-hydraulic power head drilling machine part, firstly preparing equipment part molds according to the specification requirement of the full-hydraulic power head drilling machine, then forming a prefabricated body by adopting T700 carbon fibers in a three-dimensional four-way weaving mode, and then curing and molding the prefabricated body and phenolic resin in a special mold according to the proportion of 37% of matrix mass content to prepare the composite material equipment part of the full-hydraulic power head drilling machine.
After nondestructive testing, the mechanical testing performance is good.
Example 6
The carbon fiber material core drilling outer pipe mold is designed and manufactured according to the specification of the geological core T-shaped double-pipe drilling tool outer pipe, then mixed carbon fiber tows are formed by adopting T700 carbon fibers and T1000 carbon fibers according to the mass ratio of 7 to 1, a prefabricated body is formed in a three-dimensional four-way weaving mode, and then the prefabricated body and bismaleimide resin are cured and molded in the mold according to the mass content of a matrix of 40% to prepare the composite geological core T-shaped double-pipe drilling tool outer pipe. The outer diameter of the carbon fiber composite core drilling outer pipe is 1mm larger than the outer diameter of the steel core drilling outer pipe, the outer diameter of an upper joint (steel) of the carbon fiber core drilling outer pipe is increased by 1mm, and the outer diameter of the upper joint is enhanced (by using hard alloy or diamond composite sheets). Diamond reamer and drill bit are connected to rock core outer tube lower part
After nondestructive testing, the mechanical testing performance is good.
Example 7
The inner tube mold for the core drilling of the carbon fiber composite material is designed and manufactured according to the specification of the inner tube of the T-shaped double-tube drilling tool for the geological core, then mixed carbon fiber tows are formed by adopting T800 carbon fibers and M55 carbon fibers according to the mass ratio of 4 to 1, a prefabricated body is formed in a three-dimensional five-direction weaving mode, then the prefabricated body and epoxy resin are cured and formed in the mold according to the proportion of 45% of the mass content of a matrix to prepare the inner tube of the T-shaped double-tube drilling tool for the geological core of the composite material, and a hard chromium metal coating with the thickness of 0.1mm is sprayed on the inner surface of the inner tube for the core drilling of the carbon fiber composite material.
After nondestructive testing, the mechanical testing performance is good.
Example 8
Preparing a carbon fiber composite material geological drilling casing pipe with the specification of phi 73.5mm, designing and manufacturing a carbon fiber composite material geological casing pipe mould according to the specification of the casing pipe, forming a mixed carbon fiber strand by adopting T700 carbon fiber and M60 carbon fiber according to the mass ratio of 2. The carbon fiber geological drilling casings are connected in a direct-connected mode, and male and female matched left-hand threads with the lengths of 60mm are respectively machined at the two ends of each carbon fiber geological drilling casing so as to facilitate pulling of the inner casing in the hole
After nondestructive testing, the mechanical testing performance is good.
Example 9
Preparing an inner pipe and an outer pipe of a carbon fiber composite material of a rope double-pipe drilling tool, customizing a mold with a certain specification according to the design requirements of the inner pipe and the outer pipe of the drilling tool, then forming a mixed carbon fiber tow by using the mold according to the mass ratio of T800 carbon fiber to M40 carbon fiber of 3, forming a fiber preform in a three-dimensional four-way weaving mode, and then curing and forming the inner pipe and the outer pipe of the carbon fiber composite material double-pipe drilling tool in the mold with unsaturated polyester resin according to the proportion of 42% of the mass content of a matrix to prepare the inner pipe and the outer pipe of the carbon fiber composite material double-pipe drilling tool.
After nondestructive testing, the mechanical testing performance is good.
Example 10
The outer diameter of the matrix diamond drill bit is phi 96mm, the inner diameter can be selected according to a drilling method, and the inner diameter of the common double-pipe drilling drill bit is as follows: phi 73mm; the inner diameter of the wire line core bit is phi 64mm.
Firstly, designing and manufacturing a graphite mold of a drill bit such as a graphite bottom mold, a mold sleeve, a mold core, a steel body and the like according to the inner diameter and the outer diameter of the drill bit. Pouring the prepared metal powder and metal powder containing artificial diamond and carbon fiber powder into a graphite bottom die in sequence, wherein the added carbon fiber is chopped fiber, the length of the added carbon fiber is 9 microns, the mass ratio of the metal powder to the diamond to the carbon fiber is 77.5, and the mixture is put into a high-temperature furnace for heating and sintering at 1000 ℃, is kept for 10 minutes, is put into an asbestos-containing powder or a heat preservation box for heat preservation for 8 hours and is taken out.
After nondestructive testing, the mechanical testing performance is good.
The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the present application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.
Claims (10)
1. The carbon fiber composite material for the geological drilling equipment is characterized by comprising a composite of carbon fibers and an auxiliary material, wherein the carbon fibers are selected from carbon fiber woven preforms, chopped carbon fibers or carbon fiber powder, and the auxiliary material is selected from at least one of thermosetting resin, metal powder or diamond;
the composite of the carbon fiber and the auxiliary material is formed by compounding the carbon fiber and the auxiliary material.
2. The carbon fiber composite material as claimed in claim 1, wherein the carbon fiber is selected from a carbon fiber woven preform, and the auxiliary material is selected from a thermosetting resin; and/or comprises at least one of the following technical features:
a1, weaving the carbon fiber woven preform in two dimensions or in three dimensions;
a2, selecting at least one carbon fiber from T700, T800, T1000, M40, M55 and M60 as the carbon fiber adopted by the carbon fiber woven preform;
a3, the thermosetting resin is at least one of epoxy resin, phenolic resin, unsaturated polyester resin, urea resin, organic silicon resin, bismaleimide resin or thermosetting polyimide resin.
3. The carbon fiber composite material according to claim 2, wherein in the technical feature a1, the carbon fiber is woven in a two-dimensional weaving manner selected from at least one of a plain weave, a twill weave, and a satin weave;
and/or the carbon fiber is woven in a three-dimensional weaving mode selected from at least one of three-dimensional four-direction weaving, three-dimensional five-direction weaving, three-dimensional six-direction weaving or three-dimensional seven-direction weaving.
4. The carbon fiber composite material as claimed in claim 1, wherein the composite molding method is selected from curing molding or sintering molding.
5. The carbon fiber composite material according to claim 4, wherein when the auxiliary material comprises a thermosetting resin, the composite molding method is curing molding and/or the mass content of the thermosetting resin in the carbon fiber composite material is 30-50%;
when the auxiliary material does not contain thermosetting resin, the composite molding method is sintering molding and/or the mass ratio of the auxiliary material to the carbon fiber in the carbon fiber composite material is (99-100): (1.5-0.5);
when the auxiliary materials are metal powder and diamond, the mass ratio of the metal powder to the carbon fiber is as follows: (98.5-99.5): (1.5-0.5);
6. a method of producing a carbon fibre composite material as claimed in any one of claims 1 to 5, comprising the steps of:
and mixing the carbon fibers and the auxiliary materials, and then curing and molding or sintering and molding in a mold.
7. The method for preparing the carbon fiber composite material as claimed in claim 6, wherein the curing molding adopts a multi-stage curing process;
preferably, the resin is cured in a rotary curing furnace according to a three-section curing system, wherein the three-section curing system is as follows: 50-80 ℃, 100-150 ℃ and 70-80 ℃, wherein the heating rate of each stage is 0.5-2 ℃/min, and the curing time is 20-200min, 10-150min and 10-200min respectively.
8. Use of a carbon fibre composite material according to any one of claims 1 to 5 in geological drilling equipment or components for geological drilling equipment.
9. Geological drilling component, the main material of which is a carbon fiber composite according to any of claims 1-5, said component being selected from: drill rods, drilling towers; a vertical shaft, a winch, a gearbox and a frame of the drilling machine; a mast, a winch, a chassis and a power head of the full hydraulic power head drilling machine; a matrix diamond drill bit; an outer core barrel, an inner core barrel; casing, double-barrelled drilling tool;
and/or, the outer layer of the component is further provided with a wear-resistant layer, preferably, the wear-resistant layer is made of polycrystalline diamond or hard metal, preferably chromium or nickel metal, and more preferably, the polycrystalline diamond is formed by ultrahigh pressure synthesis of phi 2.5 x 4mm of diamond.
10. A geological drilling rig, the main material of at least one component of which is a carbon fibre composite according to any one of claims 1-5, said component being selected from one, more or all of claims 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211352044.1A CN115847852A (en) | 2022-10-31 | 2022-10-31 | Comprehensive application method of novel composite or reinforced carbon fiber material in drilling equipment and configuration aspects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211352044.1A CN115847852A (en) | 2022-10-31 | 2022-10-31 | Comprehensive application method of novel composite or reinforced carbon fiber material in drilling equipment and configuration aspects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115847852A true CN115847852A (en) | 2023-03-28 |
Family
ID=85662212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211352044.1A Pending CN115847852A (en) | 2022-10-31 | 2022-10-31 | Comprehensive application method of novel composite or reinforced carbon fiber material in drilling equipment and configuration aspects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115847852A (en) |
-
2022
- 2022-10-31 CN CN202211352044.1A patent/CN115847852A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0524206B1 (en) | Composite tubular member with multiple cells | |
| CA2081302C (en) | Filament wound threaded tube connector | |
| CN102777708B (en) | Fiber-woven pultrusion pipeline and production method | |
| AU730030B2 (en) | Composite structures having high containment strength | |
| US20110308709A1 (en) | Mandrel with integral heat pipe | |
| EP2983900B1 (en) | A flexible pipe body and method of manufacture | |
| CN103557376A (en) | Continuous large-caliber woven fiber reinforced thermoset pultrusion pipeline and production method | |
| RU2375174C1 (en) | Method for manufacturing of item of tubular shape (versions) and item of tubular shape (versions) | |
| DK158607B (en) | FLOATING ELEMENT FOR LIQUID OFFSHORE CONSTRUCTIONS | |
| WO1998045635A9 (en) | Composite structures having high containment strength | |
| US6581644B1 (en) | Composite pipe structure having improved containment and axial strength | |
| CN109292059A (en) | A kind of deep-sea pressure-resistant cabin and its preparation facilities and preparation method | |
| US4602892A (en) | Sucker rod | |
| CN115847852A (en) | Comprehensive application method of novel composite or reinforced carbon fiber material in drilling equipment and configuration aspects | |
| AU743991B2 (en) | Composite pipe structures having improved containment and axial strength | |
| US4497866A (en) | Sucker rod | |
| WO1998045634A1 (en) | Composite pipe structures having high containment and axial strength | |
| CN111119749B (en) | Light oil pipe in pit for oil field | |
| Wang et al. | Application and performance analysis of carbon fibber composites in deep sea oil and gas development | |
| CN204647717U (en) | A kind of draw-bar | |
| CN214091742U (en) | Nonmetal composite oil pipe for continuously coating cable | |
| RU213380U1 (en) | Coupling glass-composite biaxial | |
| CN202901571U (en) | Coiled type reinforced plastic composite tube | |
| JPS63138052A (en) | Rod material made of fiber reinforced resin | |
| CN109723388A (en) | A kind of fibre reinforced wrapped tube and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |