阅读说明：本技术 一种保温保压取芯器智能通讯供能系统 (Intelligent communication energy supply system of heat-preservation and pressure-maintaining coring device ) 是由 高明忠 谢和平 陈领 吴年汉 李佳南 李聪 何志强 胡云起 杨明庆 于 2021-08-12 设计创作，主要内容包括：本发明公开了一种保温保压取芯器智能通讯供能系统,包括：钻头；壳体,一端与钻头相连接；岩芯舱,位于壳体的一端内、用于放置岩芯；第一保温层,覆盖设于岩芯舱外壁；中心杆,设于壳体内、与岩芯舱相连接,其中,中心杆的对称的侧壁上设有安装槽；安装槽内设有电源线,电源线与第一保温层电连接。本发明通过在岩芯舱外壁设置第一保温层,可对岩芯舱内的岩芯进行有效保温,进一步在中心杆上设置安装槽,并在安装槽内设置电源线,通过电源线给第一保温层提供所需电能,以使第一保温层持续对岩芯舱进行加热保温。本发明实施例中的保温保压取芯器智能通讯供能系统可以为井下传输大电流,满足保温的电能需要。(The invention discloses an intelligent communication energy supply system of a heat-preservation and pressure-maintaining coring device, which comprises: a drill bit; a housing, one end of which is connected with the drill bit; the core cabin is positioned in one end of the shell and used for placing a core; the first heat preservation layer is covered on the outer wall of the rock core cabin; the central rod is arranged in the shell and connected with the rock core cabin, wherein the symmetrical side walls of the central rod are provided with mounting grooves; and a power line is arranged in the mounting groove and is electrically connected with the first heat-insulating layer. According to the invention, the first heat preservation layer is arranged on the outer wall of the rock core cabin, so that the rock core in the rock core cabin can be effectively preserved heat, the installation groove is further arranged on the central rod, the power line is arranged in the installation groove, and the power line supplies required electric energy to the first heat preservation layer, so that the first heat preservation layer can continuously heat and preserve heat for the rock core cabin. The intelligent communication energy supply system of the heat-preservation and pressure-maintaining coring device in the embodiment of the invention can transmit large current underground, and meets the requirement of heat-preservation electric energy.)

1. The utility model provides a heat preservation pressurize corer intelligence communication energy supply system which characterized in that includes:

a drill bit;

a housing having one end connected to the drill bit;

a core compartment located within one end of the housing for placement of a core;

the first heat preservation layer is covered on the outer wall of the rock core cabin;

the central rod is arranged in the shell and connected with the rock core cabin, wherein mounting grooves are formed in the symmetrical side walls of the central rod; and a power line is arranged in the mounting groove and is electrically connected with the first heat-preservation layer.

2. The intelligent communication energy supply system for the heat-preserving and pressure-maintaining coring device of claim 1, further comprising a pressure-maintaining component, wherein the pressure-maintaining component is arranged at the bottom of the core cabin and is close to the drill bit.

3. The intelligent communication energy supply system for the heat-preservation and pressure-maintaining coring device as claimed in claim 2, further comprising clamping jaws symmetrically arranged between the pressure-maintaining component and the drill bit, wherein one ends of the clamping jaws are connected with the shell, and the other ends of the clamping jaws are gathered inwards.

4. The intelligent communication energy supply system for the heat-preservation and pressure-maintaining coring device according to claim 1, further comprising a second heat-preservation layer, wherein the second heat-preservation layer is arranged on the inner wall of the core cabin.

5. The intelligent communication energy supply system for the heat-preservation and pressure-maintaining coring device according to claim 4, wherein the first heat-preservation layer is made of graphene, and the second heat-preservation layer is made of epoxy resin.

6. The intelligent communication and energy supply system for the heat-preservation and pressure-maintaining coring device as claimed in claim 1, wherein a lithium battery is arranged in the central rod, and the lithium battery is electrically connected with the power line.

7. The intelligent communication energy supply system for the heat-preservation and pressure-maintaining coring device as claimed in claim 1, wherein an insulating layer is arranged in the mounting groove, and the power line is arranged in the insulating layer.

8. The intelligent communication energy supply system for the heat-preserving and pressure-maintaining coring device as claimed in claim 1, wherein the pressure-maintaining component is a high-pressure ball valve.

9. The intelligent communication energy supply system for the heat-preservation and pressure-maintaining coring device as claimed in claim 6, wherein a signal transmission line is further arranged in the mounting groove, and a measurement-while-drilling sensor is arranged on the drill bit; the signal wire is electrically connected with the measurement while drilling sensor.

10. The intelligent communication and energy supply system for the heat-preservation and pressure-maintaining coring device as claimed in claim 9, wherein the central rod is of a multi-section structure, and power lines in adjacent central rods are connected through an insulating screw.

Technical Field

The invention relates to the technical field of drilling equipment, in particular to an intelligent communication energy supply system of a heat-preservation and pressure-maintaining coring device.

Background

The intelligent drilling technology is used as an automatic operation mode, the labor intensity of workers is reduced, the drilling cost is reduced, operations such as cable logging and the like are cancelled, and the comprehensive drilling cost is reduced; the advent of intelligent drilling technology has enabled drilling cycles to be shortened; in the drilling process, while-drilling data is collected, transmitted, processed and fed back in real time; the acquisition of geology, engineering, well bore and other information in the well drilling enables a well drilling expert to adjust the construction process in time, thereby ensuring that the well drilling process is carried out quickly and accurately.

The coring device relates to heat preservation and pressure maintaining coring of deep in-situ rock in the drilling process of the existing coring device, so that electric energy required by heat preservation needs to be provided.

Thus, the prior art has yet to be improved and enhanced.

Disclosure of Invention

In view of the defects of the prior art, the invention aims to provide an intelligent communication energy supply system of a heat-preservation and pressure-maintaining coring device, and aims to solve the problem that the coring device in the prior art cannot provide heat-preservation electric energy required by a rock core.

In order to achieve the purpose, the invention adopts the following technical scheme:

the embodiment of the invention provides an intelligent communication energy supply system for a heat-preservation and pressure-maintaining coring device, which comprises:

a drill bit;

a housing having one end connected to the drill bit;

a core compartment located within one end of the housing for placement of a core;

the first heat preservation layer is covered on the outer wall of the rock core cabin;

the central rod is arranged in the shell and connected with the rock core cabin, wherein mounting grooves are formed in the symmetrical side walls of the central rod; and a power line is arranged in the mounting groove and is electrically connected with the first heat-preservation layer.

Further, among the heat preservation pressurize corer intelligence communication energy supply system, still include the pressurize part, the pressurize part is located the bottom in rock core cabin, and be close to in the drill bit.

Further, among the heat preservation pressurize corer intelligence communication energy supply system, still include the jack catch, the jack catch symmetry is located the pressurize part with between the drill bit, the one end of jack catch with the casing is connected, the other end inwards gathers together.

Further, among the heat preservation pressurize corer intelligence communication energy supply system, still include the second heat preservation, the second heat preservation is located core cabin inner wall.

Further, among the heat preservation pressurize corer intelligence communication energy supply system, the material on first heat preservation is graphite alkene, the material of second heat preservation is epoxy.

Further, among the heat preservation pressurize corer intelligence communication energy supply system, be equipped with the lithium cell in the well core rod, the lithium cell with the power cord electricity is connected.

Further, among the heat preservation pressurize corer intelligence communication energy supply system, be equipped with the insulating layer in the mounting groove, the power cord is arranged in the insulating layer.

Further, among the heat preservation pressurize corer intelligence communication energy supply system, the pressurize part is the high-pressure ball valve.

Furthermore, in the intelligent communication energy supply system of the heat-preservation and pressure-maintaining coring device, a signal transmission line is also arranged in the mounting groove, and a measurement-while-drilling sensor is arranged on the drill bit; the signal wire is electrically connected with the measurement while drilling sensor.

Further, among the heat preservation pressurize corer intelligence communication energy supply system, well core rod is multistage formula structure, and is adjacent power cord in the well core rod is connected through an insulating screw.

The technical scheme adopted by the invention has the following beneficial effects:

the invention provides an intelligent communication energy supply system of a heat-preservation and pressure-maintaining coring device, which comprises: a drill bit; a housing having one end connected to the drill bit; a core compartment located within one end of the housing for placement of a core; the first heat preservation layer is covered on the outer wall of the rock core cabin; the central rod is arranged in the shell and connected with the rock core cabin, wherein mounting grooves are formed in the symmetrical side walls of the central rod; and a power line is arranged in the mounting groove and is electrically connected with the first heat-preservation layer. According to the invention, the first heat preservation layer is arranged on the outer wall of the rock core cabin, so that the rock core in the rock core cabin can be effectively preserved heat, the installation groove is further arranged on the central rod, the power line is arranged in the installation groove, and the power line supplies required electric energy to the first heat preservation layer, so that the first heat preservation layer can continuously heat and preserve heat for the rock core cabin. The intelligent communication energy supply system of the heat-preservation and pressure-maintaining coring device in the embodiment of the invention can transmit large current underground, and meets the requirement of heat-preservation electric energy.

Drawings

FIG. 1 is a schematic view of the overall structure of an intelligent communication energy supply system of a heat-preservation and pressure-maintaining coring device provided by the invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view of a first center rod in the intelligent communication energy supply system of the heat-preservation and pressure-maintaining coring device provided by the invention;

FIG. 4 is a cross-sectional view at B of FIG. 3;

FIG. 5 is a cross-sectional view at C of FIG. 3;

FIG. 6 is a schematic structural view of a second center rod in the intelligent communication energy supply system of the heat-preserving and pressure-maintaining coring device provided by the invention;

FIG. 7 is a cross-sectional view taken at D of FIG. 6;

FIG. 8 is a cross-sectional view at E of FIG. 6;

FIG. 9 is a schematic structural view of a third center rod in the intelligent communication energy supply system of the heat-preserving and pressure-maintaining coring device provided by the invention;

fig. 10 is a cross-sectional view at F in fig. 9.

In the figure: 100. a drill bit; 200. a housing; 300. a core compartment; 10. a core; 400. a first insulating layer; 500. a center pole; 510. mounting grooves; 511. a power line; 600. a pressure maintaining member; 700. a claw; 800. a second insulating layer; 512. an insulating layer; 520. and an insulating screw.

Detailed Description

In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the embodiments and claims, the terms "a" and "an" can mean "one or more" unless the article is specifically limited.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In intelligent drilling, it is desirable that various testing systems downhole while drilling acquire and process the parameters required during the drilling process. After the parameters are collected and processed, the parameter information is transmitted to a control center on the ground in real time through a high-speed information channel; after receiving the parameter information, the control center on the ground can process the parameter information in time and feed back some control information to the underground equipment according to the parameter information to ensure that the drilling process is carried out more safely and effectively. Therefore, an intelligent drill string is provided, and the idea of the intelligent drill string is to develop a drill string based on a traditional drilling system, wherein the drill string can be provided with a downhole measurement and control system in a drill rod near a drill bit, cables for power and information transmission are arranged in the drill rod in an embedded mode, and the cables between the drill strings are connected through joints. Therefore, the downhole parameter testing and the duplex communication between the downhole and the ground control center are realized while drilling. Therefore, the intelligent drill rod can be divided into two types, one type of drill rod is connected with the drill bit, a cable and a measurement and control system for communication are installed inside the drill rod, only the cable is installed inside the other type of drill rod, and the two types of intelligent drill rods cannot meet the heat preservation electric energy required by the rock core.

The invention discloses an intelligent communication energy supply system of a heat-preservation and pressure-maintaining coring device, which is shown in figures 1 to 10, and comprises: a drill bit 100; a housing 200 having one end connected to the drill bit 100; a core compartment 300 in one end of the housing 200 for placing a core 10; a first heat insulation layer 400 covering the outer wall of the core chamber 300; a center rod 500 disposed in the housing 200 and connected to the core barrel 300, wherein mounting grooves 510 are formed on symmetrical sidewalls of the center rod 500; a power line 511 is disposed in the mounting groove 510, and the power line 511 is electrically connected to the first thermal insulation layer 400.

In the embodiment of the present invention, the drill bit 100 is disposed outside one end of the housing 200 and is used for drilling rock so as to make the obtained rock core 10 enter the core chamber 300, the core chamber 300 is disposed inside one end of the housing 200 and is used for receiving the drilled rock core 10, one end of a central rod 500 is connected to the core chamber 300, and the other end of the central rod extends to the other end of the housing 200, the first thermal insulation layer 400 is used for insulating the core chamber 300, the mounting grooves 510 are disposed along the long axis direction of the central rod 500 and symmetrically distributed on the upper and lower sides of the central rod 500 and are used for accommodating a power line 511 and other wires (such as signal lines, etc.), wherein the depth of the mounting grooves 510 is determined by the size of the power line 511. The power line 511 is used for transmitting electric energy to the first heat-insulating layer 400 to heat the first heat-insulating layer, so that the heat insulation of the core 10 in the core compartment 300 is realized.

It should be noted that the drill 100 is of a conventional structure, and the description thereof is omitted here.

According to the invention, the first heat-insulating layer 400 is arranged on the outer wall of the core compartment 300, so that the core 10 in the core compartment 300 can be effectively insulated, the installation groove 510 is further arranged on the central rod 500, the power line 511 is arranged in the installation groove 510, and the first heat-insulating layer 400 is supplied with required electric energy through the power line 511, so that the core compartment 300 is continuously heated and insulated by the first heat-insulating layer 400. The intelligent communication energy supply system of the heat-preservation and pressure-maintaining coring device in the embodiment of the invention can transmit large current underground, and meets the requirement of heat-preservation electric energy.

As a further aspect, the heat-preserving and pressure-maintaining coring device intelligent communication energy supply system further comprises a pressure-maintaining component 600, wherein the pressure-maintaining component 600 is arranged at the bottom of the core capsule 300 and close to the drill bit 100.

In an embodiment of the present invention, the pressure maintaining member 600 serves to maintain the pressure inside the core capsule 300. As explained in connection with the practical use, when the drill bit 100 drills the core 10, the core 10 moves from the drill bit 100 to the bottom of the core chamber 300, and then the core 10 enters the core chamber 300 through the pressure maintaining member 600, wherein the pressure maintaining member 600 has one-way conductivity, that is, the core 10 can be placed in the core chamber 300 only from the direction of the drill bit 100, and after the core 10 completely enters the core chamber 300, the pressure maintaining member 600 is closed, and the core 10 cannot fall out of the core chamber 300. In practice the core chamber 300 may be understood as a valve, for example the pressure maintaining member 600 is a high pressure ball valve. Of course, the model of the pressure holding member 600 is merely an example, and the specific model is selected according to actual requirements.

As a further scheme, the heat-preserving and pressure-maintaining coring device intelligent communication energy supply system further comprises a clamping jaw 700, wherein the clamping jaw 700 is symmetrically arranged between the pressure-maintaining component 600 and the drill bit 100, one end of the clamping jaw 700 is connected with the shell 200, and the other end of the clamping jaw is gathered inwards.

In an embodiment of the present invention, the number of the jaws 700 may be two, and the two jaws 700 are symmetrically disposed on the inner wall of the other end of the housing 200, when the drill bit 100 drills the core 10, the core 10 moves from the drill bit 100 to the jaws 700, and the core 10 may move along one end of the jaws 700 to the other end thereof, and then enters the core chamber 300 through the pressure maintaining member 600. If the core 10 falls from the pressure maintaining member 600, the other ends of the jaws 700 are inwardly gathered, and the space formed by the gathered other ends of the jaws 700 is smaller than the size of the bottom of the core 10, so that the core 10 cannot move from the other ends of the jaws 700 to the one ends thereof, and the core 10 is further prevented from falling from the core compartment 300 by the jaws 700.

Of course, the above-mentioned number of jaws 700 is only an example, and the number of jaws may be set to 4 or 6, etc. in order to prevent the core 10 from falling.

As a further scheme, the intelligent communication energy supply system for the heat-preservation and pressure-maintaining coring device further comprises a second heat-preservation layer 800, and the second heat-preservation layer 800 is arranged on the inner wall of the core cabin 300.

In the embodiment of the present invention, after the core 10 enters the core chamber 300, the temperature of the core 10 is gradually lowered, so that the heat loss in the cavity of the core 10 can be effectively prevented by the second insulating layer 800. That is, the outer wall of the core compartment 300 can be heated by the first insulating layer 400, the temperature reduced during the process from core taking to core lifting can be supplemented in time, and the heat preservation of the heated core 10 can be realized by the second insulating layer 800; the temperature of the core compartment 300 can be stabilized by the cooperation of the first insulating layer 400 and the second insulating layer 800, and the insulating function of the core 10 is realized.

The first heat insulation layer 400 is made of graphene, and the second heat insulation layer 800 is made of epoxy resin or hollow glass bead composite heat insulation material. Specifically, due to the adoption of the graphene material, the first heat-insulating layer 400 can be driven by 24V voltage, the temperature is increased from 25 ℃ to 100 ℃ within 10 seconds, the power density reaches 40W/[ cm ]2, and the heat is generated uniformly. Therefore, the core 10 in the core chamber 300 can be effectively heated and insulated by the first insulating layer 400 made of graphene.

As a further alternative, a lithium battery (not shown) is disposed in the center pole 500, and the lithium battery is electrically connected to the power line 511. It should be understood that the present invention does not limit the type of the lithium battery.

As a further alternative, an insulating layer 512 is disposed in the mounting groove 510, and the power line 511 is disposed in the insulating layer 512.

In the embodiment of the present invention, the insulating layer 512 is disposed in the mounting groove 510 and is adapted to the shape of the mounting groove 510, so as to prevent the power line 511 from contacting the central rod 500 for conduction, the power line 511 is wrapped in the insulating layer 512, and optionally, the insulating layer 512 is made of rubber.

As a further proposal, a signal transmission line (not shown in the figure) is further arranged in the mounting groove 510, and a measurement while drilling sensor (not shown in the figure) is arranged on the drill bit 100; the signal wire is electrically connected with the measurement while drilling sensor.

In the embodiment of the present invention, because the drill bit 100 is integrated with a measurement while drilling sensor (not shown in the drawings), and the signal transmission line is connected to the measurement while drilling sensor, when the drill bit 100 is in operation, data measured by the measurement while drilling sensor needs to be timely transmitted to a control center on the ground, so that the control center on the ground can timely process the parameter information after receiving the parameter information, and feed back some control information to downhole equipment according to the parameter information to ensure that the drilling process is performed more safely and effectively. It should be understood that the present invention is not limited to the type of the LWD sensor.

As a further alternative, with reference to fig. 3 to fig. 10, the center pole 500 has a multi-segment structure, and the power lines 511 in the adjacent center poles 500 are connected by an insulating screw 520.

In the present embodiment, since center pole 500 may be segmented during use, power lines 511 may be connected by an insulating screw 520 to facilitate the communication of current between center poles 500. Since the shape of center pole 500 varies, in order to adapt power supply line 511 to center pole 500, a plurality of insulating screws 520 are disposed in the axial direction of center pole 500, and power supply line 511 can be fixed in mounting groove 510 by the plurality of insulating screws 520. It is conceivable that the signal transmission line and the power line 511 are fixed together in the mounting groove 510 by the insulating screw 520 when the signal transmission line is provided in the mounting groove 510.

The working principle of the intelligent communication energy supply system of the heat-preservation and pressure-maintaining coring device in the embodiment of the invention is described in detail as follows:

on the one hand, the heat loss in the cavity of the rock core 10 can be effectively prevented through the second heat-insulating layer 800, and the lithium battery is further connected with the first heat-insulating layer 400 through the power line 511, so that the first heat-insulating layer 400 continuously heats and insulates the rock core cabin 300, and the rock core 10 in the rock core cabin 300 is effectively insulated.

On the other hand, when the drill bit 100 drills the core 10, the core 10 moves from the drill bit 100 to the bottom of the core chamber 300, and the core 10 enters the core chamber 300 through the pressure maintaining member 600, wherein the pressure maintaining member 600 has a one-way conductivity, that is, the core 10 can be placed into the core chamber 300 only from the direction of the drill bit 100, and after the core 10 completely enters the core chamber 300, the pressure maintaining member 600 is closed, and the core 10 cannot fall out of the core chamber 300 to maintain the internal pressure of the chamber.

In another aspect, the signal transmission line is connected to the measurement while drilling sensor, so that when the drill bit 100 is in operation, data measured by the measurement while drilling sensor needs to be transmitted to the control center on the ground in time, so that the control center on the ground can process the parameter information in time after receiving the parameter information, and feed back some control information to the downhole equipment according to the parameter information to ensure that the drilling process is performed more safely and effectively.

In summary, the present invention provides an intelligent communication energy supply system for a heat preservation and pressure maintaining coring device, comprising: a drill bit; a housing having one end connected to the drill bit; a core compartment located within one end of the housing for placement of a core; the first heat preservation layer is covered on the outer wall of the rock core cabin; the central rod is arranged in the shell and connected with the rock core cabin, wherein mounting grooves are formed in the symmetrical side walls of the central rod; and a power line is arranged in the mounting groove and is electrically connected with the first heat-preservation layer. According to the invention, the first heat preservation layer is arranged on the outer wall of the rock core cabin, so that the rock core in the rock core cabin can be effectively preserved heat, the installation groove is further arranged on the central rod, the power line is arranged in the installation groove, and the power line supplies required electric energy to the first heat preservation layer, so that the first heat preservation layer can continuously heat and preserve heat for the rock core cabin. The intelligent communication energy supply system of the heat-preservation and pressure-maintaining coring device in the embodiment of the invention can transmit large current underground, and meets the requirement of heat-preservation electric energy.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.