CN115060531B - A multifunctional in-situ sampling drill for fixed hole section in ice drilling - Google Patents
A multifunctional in-situ sampling drill for fixed hole section in ice drilling Download PDFInfo
- Publication number
- CN115060531B CN115060531B CN202210685934.8A CN202210685934A CN115060531B CN 115060531 B CN115060531 B CN 115060531B CN 202210685934 A CN202210685934 A CN 202210685934A CN 115060531 B CN115060531 B CN 115060531B
- Authority
- CN
- China
- Prior art keywords
- outer tube
- drill bit
- side wall
- hot melt
- wall hot
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 97
- 238000005070 sampling Methods 0.000 title claims abstract description 46
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 33
- 239000012943 hotmelt Substances 0.000 claims abstract description 71
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000007789 gas Substances 0.000 claims abstract description 37
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 230000000670 limiting effect Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 239000013618 particulate matter Substances 0.000 abstract description 2
- 238000011109 contamination Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000002844 melting Methods 0.000 description 10
- 230000008018 melting Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Earth Drilling (AREA)
Abstract
本发明公开了一种冰层钻孔内定孔段多功能原位采样钻具，属于钻探领域，主要包括铠装电缆、电缆终端头、外管、采气装置、第一接头、环形封堵器、氮气注入装置、液压泵站、液压油缸、推杆座、第一销钉、推杆、加热棒、侧壁热融钻头、第二销钉、第三销钉、钻头座、导流器、第二接头和集水管。通过上述各部件相互协同作业，钻具具有两种工作模式，可对已有钻孔指定深度孔段的水样、冰内气样和颗粒物进行原位采样，大大提高了单个钻孔的利用率，降低采样成本，通过向指定孔段注入氮气，可将钻具内和钻具与钻孔孔壁环空间隙的空气全部排出，配合环形封堵器封闭钻孔，为气体采样提供了无污染的封闭空间，减少了气体采集过程中受外源物质污染的可能性。
The present invention discloses a multifunctional in-situ sampling drill tool for a fixed hole section in an ice layer borehole, which belongs to the field of drilling and mainly includes an armored cable, a cable terminal head, an outer tube, a gas collection device, a first joint, an annular plug, a nitrogen injection device, a hydraulic pump station, a hydraulic cylinder, a push rod seat, a first pin, a push rod, a heating rod, a side wall hot melt drill bit, a second pin, a third pin, a drill bit seat, a guide, a second joint and a water collecting pipe. Through the coordinated operation of the above-mentioned components, the drill tool has two working modes, and can perform in-situ sampling of water samples, gas samples in ice and particulate matter in a hole section with a specified depth of an existing borehole, greatly improving the utilization rate of a single borehole and reducing the sampling cost. By injecting nitrogen into the specified hole section, the air in the drill tool and the annular gap between the drill tool and the borehole wall can be completely discharged, and the borehole is closed in cooperation with the annular plug, providing a pollution-free closed space for gas sampling and reducing the possibility of contamination by exogenous substances during gas collection.
Description
Technical Field
The invention belongs to the field of drilling, and relates to a sampling drilling tool, in particular to an in-situ sampling drilling tool with a Kong Duanduo function in an ice layer drilling hole.
Background
The research work of the north-south pole ice cover and the alpine glaciers plays an important role in understanding the evolution rule of the earth ancient climate and the influence of human activities on the climate. And the acquisition of water samples, gas samples and particulate samples in glacier ice is a basic condition for glacier research. At present, although a large number of core drilling holes are formed in north-south pole ice covers and alpine glaciers at home and abroad, a plurality of precious ice core samples are obtained, the method is limited by high ice core drilling cost, and the number of the holes in a local area and the obtained sample amount are small. While scientists sometimes have a greater need for samples at one or more levels within the overall borehole for different research purposes, additional boreholes are often required for this purpose, which is inefficient and costly. How to obtain as many samples as possible of ice through one borehole is a technical problem that needs to be solved in the drilling field. At present, a serpentine side wall coring method is adopted for coring a specific hole section in a drilled hole at home, but the amount of samples obtained at a time is small based on reported structural characteristics.
Disclosure of Invention
The invention aims to solve the problems of small sampling quantity and low efficiency of inner positioning hole sections in glacier drilling, and provides an in-situ sampling drilling tool with an ice layer inner positioning Kong Duanduo function, which can sample water samples, gas samples and particulate matters in ice at the hole sections with the designated depth of the existing drilling holes in situ, thereby greatly improving the utilization rate of single drilling holes and reducing the sampling cost.
The technical scheme adopted by the invention for achieving the purpose is as follows: the utility model provides an interior Kong Duanduo function normal position sampling drilling tool in ice layer drilling, normal position sampling drilling tool includes armoured cable, cable terminal head and outer tube, armoured cable is connected as an organic wholely with cable terminal head, and cable terminal head detachably fixes at the outer tube top, and adopts the sealing washer to seal between the two, its characterized in that: the in-situ sampling drilling tool further comprises a gas production device, a first joint, an annular plugging device, a nitrogen injection device, a hydraulic pump station, a hydraulic cylinder, a push rod seat, a push rod, a side wall hot-melt drill bit, a drill bit seat, a flow director, a second joint and a water collecting pipe; the gas production device, the nitrogen injection device and the hydraulic pump station are all arranged in the outer pipe; the annular plugging device and the flow guider are fixed outside the outer tube, and a plurality of through holes are formed in the outer tube at positions corresponding to the flow guider; an annular space is formed between the annular plugging device and the outer tube, and the annular plugging device is made of an elastically deformable material, so that when the annular space between the annular plugging device and the outer tube is filled with oil, the annular plugging device expands outwards to deform and can be tightly attached to the wall of a drilling hole; when the oil is discharged, the annular plugging device can be restored to the original state; the two annular plugging devices are respectively arranged at the upper part and the lower part of the outer tube and are respectively called an upper annular plugging device and a lower annular plugging device; one end of the first connector is communicated with an annular space formed by the upper annular plugging device and the outer tube, the other end of the first connector is connected with a hydraulic pump station, one end of the second connector is communicated with an annular space formed by the lower annular plugging device and the outer tube, and the other end of the second connector is connected with the hydraulic pump station; the hydraulic cylinder is communicated with the hydraulic pump station through a pipeline, and the lower part of a cylinder piston rod of the hydraulic cylinder is fixedly connected with the push rod seat through threads; the number of the push rods is consistent with that of the side wall hot-melt drill bits, at least three push rods are in one-to-one correspondence, the upper ends of the push rods are matched with the pin holes on the push rod seat through first pins, the other ends of the push rods are connected with the side wall hot-melt drill bits through second pins, and the push rods can freely rotate around the first pins and the second pins; the side wall hot-melt drill bit is a columnar body, a strip-shaped window matched with the shape of each side wall hot-melt drill bit is reserved on the outer tube at the position corresponding to each side wall hot-melt drill bit, heating rods are uniformly inserted into the side wall hot-melt drill bit, the upper end of each side wall hot-melt drill bit is a free end, the lower end of each side wall hot-melt drill bit is connected with the drill bit seat through a third pin, the side wall hot-melt drill bit can rotate around the third pin, the side wall hot-melt drill bit can rotate between a first position and a second position, when the side wall hot-melt drill bit is located at the first position, the side wall hot-melt drill bit extends out of the outer tube and is perpendicular to the central axis of the outer tube, when the side wall hot-melt drill bit is located at the second position, the side wall hot-melt drill bit is retracted into the outer tube and is parallel to the central axis of the outer tube, and the water collecting tube is connected to the lower end of the outer tube in a threaded sealing manner and is communicated with the inner portion of the outer tube; the drill bit seat is fixed inside the outer tube and is coaxially arranged with the outer tube;
Wherein, gas production device, nitrogen gas injection device, hydraulic power unit and heating rod all are connected with armoured cable electricity.
The first connector and the second connector are both arranged in the outer tube in a penetrating way and are connected with the outer tube in a threaded way.
Preferably, the annular plugging material is natural rubber with an expansion coefficient of 30% or more, but is not limited thereto.
The maximum diameter of the retraction state of the upper annular plugging device and the lower annular plugging device is smaller than the outer diameter of the drill hole, and the maximum diameter of the expansion state of the upper annular plugging device and the lower annular plugging device can adapt to the outer diameter of the drill hole, so that the upper annular plugging device and the lower annular plugging device can be tightly attached to the wall of the drill hole.
The hydraulic cylinder is fixed in the outer tube through two cylinder brackets which are arranged up and down symmetrically.
The material of the flow director is silica gel, and the maximum free outer diameter of the flow director is slightly larger than the diameter of the drilled hole, so that the outer edge of the flow director is always attached to the wall of the drilled hole.
As a preferable scheme, the number of the pushing rods and the side wall hot melt drill bits is six.
Further, a boss is machined on the upper portion of the push rod and used for limiting the side wall hot-melt drill bit at the second position.
Further, the nitrogen injection device discharges nitrogen from the vicinity of the cable terminal and the water collecting pipe through two pipelines respectively, and the gas production device collects gas from the vicinity of the strip-shaped window on the outer pipe through the pipelines.
Preferably, the material of the sidewall hot-melt drill is red copper, but is not limited thereto.
Through the design scheme, the invention has the following beneficial effects:
1. The in-situ sampling drilling tool with the function of interior positioning Kong Duanduo in the ice layer drilling provided by the invention can sample water samples, gas samples in ice and particulate matters in the hole section with the appointed depth in the existing drilling, so that the utilization rate of a single drilling is greatly improved, and the sampling cost is reduced.
2. The in-situ sampling drilling tool with the function of interior Kong Duanduo in the ice layer drilling provided by the invention can discharge all air in the drilling tool and in an annular gap formed by the drilling tool and the wall of the drilling hole through inert gases such as nitrogen and the like to the designated hole Duan Zhuru, and is matched with the annular plugging device to seal the drilling hole, so that a pollution-free sealed space is provided for gas sampling, and the possibility of being polluted by exogenous materials in the gas collecting process is reduced.
3. The drilling tool provided by the invention has two working modes, can simultaneously meet the pollution-free gas production or long hole section water production requirements, and has good use flexibility.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application, wherein:
fig. 1 is a schematic structural diagram of an in-situ sampling drilling tool with a function of interior position Kong Duanduo in an ice layer drilling.
Fig. 2 is a partial enlarged view of fig. 1.
FIG. 3 shows an ice layer drilling interior Kong Duanduo a top view of the functional in-situ sampling drilling tool.
Fig. 4 is an isometric view of an in-situ sampling drilling tool with a function of interior Kong Duanduo in the ice borehole.
Fig. 5 is a schematic diagram of the working process of the in-situ sampling drilling tool with the function Kong Duanduo in the ice layer drilling.
The figures are marked as follows: 1-armoured cable; 2-cable termination; 3-a sealing ring; 4-an outer tube; 5-a gas production device; 6-a first linker; 7-an upper annular occluder; 8-nitrogen injection device; 9-a hydraulic pump station; 10-a hydraulic cylinder; 11-a first cylinder bracket; 12-a second oil cylinder bracket; 13-an oil cylinder piston rod; 14-a push rod seat; 15-a first pin; 16-push rod; 17-heating rod; 18-side wall hot melt drill bit; 19-a second pin; 20-a third pin; 21-a drill bit seat; 22-a deflector; 23-a second linker; 24-lower annular occluder; 25-water collecting pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Well-known methods, procedures, flows, components and circuits have not been described in detail so as not to obscure the nature of the invention. In the description of the present invention, it should be understood that the terms "first," "second," and "third" are used for descriptive purposes only and that features defining "first," "second," and "third" are not necessarily indicative of any order, quantity, or importance, but are merely used to distinguish between different components.
As shown in fig. 1,2, 3 and 4, the in-situ sampling drilling tool with the function of Kong Duanduo in the drilling of the ice layer comprises an armored cable 1, a cable terminal 2, a sealing ring 3, an outer pipe 4, a gas production device 5, a first joint 6, an upper annular plugging device 7, a nitrogen injection device 8, a hydraulic pump station 9, a hydraulic cylinder 10, a push rod seat 14, a first pin 15, a push rod 16, a heating rod 17, a side wall hot melt drill bit 18, a second pin 19, a third pin 20, a drill bit seat 21, a flow guider 22, a second joint 23, a lower annular plugging device 24 and a water collecting pipe 25.
The armored cable 1 is connected with the cable terminal 2 into a whole, and supplies power and transmits signals for electric equipment in the drilling tool. The cable terminal 2 is fixed at the top of the outer tube 4 by a screw, and a sealing ring 3 is adopted between the cable terminal and the outer tube for sealing. The gas production device 5, the nitrogen injection device 8 and the hydraulic pump station 9 are all installed inside the outer tube 4, the upper annular plugging device 7, the lower annular plugging device 24 and the fluid director 22 are fixed outside the outer tube 4, an annular space is formed between the upper annular plugging device 7 and the outer tube 4, an annular space is formed between the lower annular plugging device 24 and the outer tube 4, and a plurality of through holes are processed at positions of the outer tube 4 corresponding to the fluid director 22. The first joint 6 and the second joint 23 are both arranged in the outer tube 4 in a penetrating way and are in threaded connection with the outer tube 4; one end of the first joint 6 is communicated with an annular space formed by the upper annular plugging device 7 and the outer tube 4, the other end of the first joint is connected with the hydraulic pump station 9, one end of the second joint 23 is communicated with an annular space formed by the lower annular plugging device 24 and the outer tube 4, and the other end of the second joint is connected with the hydraulic pump station 9; the upper annular plugging device 7 and the lower annular plugging device 24 are both made of natural rubber with expansion coefficient of more than 30%. When the annular space between the upper annular stopper 7 and the outer tube 4 and the annular space between the lower annular stopper 24 and the outer tube 4 are filled with oil, the upper annular stopper 7 and the lower annular stopper 24 will undergo expansion deformation; when the oil is discharged, the original state can be restored.
The drill bit seat 21 is fixed inside the outer tube 4 by screws. The hydraulic cylinder 10 is fixed in the outer tube 4 through a first cylinder support 11 and a second cylinder support 12 which are arranged vertically symmetrically, has strong stability and is communicated with the hydraulic pump station 9 through a pipeline. The upper end of the push rod seat 14 is in threaded connection with the cylinder piston rod 13 of the hydraulic cylinder 10, a pin hole is formed in the lower end of the push rod seat 14, and the lower end of the push rod seat 14 is connected with the push rod 16 through a first pin 15. The lower end of the push rod 16 is connected with the side wall hot melt drill bit 18 through the second pin 19, and the push rod 16 can freely rotate around the first pin 15 and the second pin 19. The side wall hot-melt drill bit 18 is a columnar body, the lower part of the side wall hot-melt drill bit 18 is connected to the drill bit seat 21 through a third pin 20, the side wall hot-melt drill bit 18 can freely rotate around the third pin 20, a row of holes for inserting heating rods 17 are formed in the side wall hot-melt drill bit 18, the heating rods 17 are inserted into the side wall hot-melt drill bit 18, the heating rods 17 are vertically arranged with the side wall hot-melt drill bit 18, the number of the preferable heating rods 17 is ten, and the ten heating rods 17 are uniformly arranged at equal intervals along the axial direction of the side wall hot-melt drill bit 18; the push rod seat 14 can move up and down along the axial direction of the drilling tool under the drive of the oil cylinder piston rod 13, and pushes the side wall hot-melt drill bit 18 to rotate around the third pin 20 through the push rod 16, so that all the side wall hot-melt drill bits 18 synchronously rotate between a first position and a second position, when the side wall hot-melt drill bit 18 is positioned at the first position, the side wall hot-melt drill bit 18 extends out of the outer tube 4 and is perpendicular to the central axis of the outer tube 4, when the side wall hot-melt drill bit 18 is positioned at the second position, the side wall hot-melt drill bit 18 is retracted into the outer tube 4 and is parallel to the central axis of the outer tube 4, namely, the side wall hot-melt drill bit 18 is opened and retracted, a boss is processed at the upper part of the push rod 16 and used for limiting when the side wall hot-melt drill bit 18 is retracted to the second position; the first pins 15, the push rod 16, the second pins 19, the third pins 20 and the side wall hot melt drill bit 18 are the same in number and correspond to each other, and six groups are uniformly distributed along the circumferential direction of the outer tube 4. An elongated window is reserved on the outer tube 4 at a position corresponding to each side wall hot melt drill bit 18, and the size of the elongated window should ensure that the side wall hot melt drill bit 18 can extend out of the window. The outer tube 4 is provided with a plurality of through holes at positions corresponding to the flow directors 22 to ensure that fluid can flow into the interior of the drilling tool through the through holes of the outer tube 4. The water collecting pipe 25 is connected to the lower end of the outer pipe 4 by screw sealing and communicates with the inside of the outer pipe 4, so that the fluid flowing into the inside of the drilling tool through the fluid director 22 can be stored in the water collecting pipe 25. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless explicitly defined otherwise,
The armored cable 1 is electrically connected with the gas production device 5, the nitrogen injection device 8, the hydraulic pump station 9 and the heating rod 17 respectively.
The nitrogen injection device 8 discharges nitrogen from the vicinity of the cable terminal 2 and the water collecting pipe 25 through two pipelines respectively, nitrogen sprayed from the cable terminal 2 can expel air in the drilling tool from top to bottom, and the nitrogen sprayed from the water collecting pipe 25 can expel air in the lower part of the drilling tool from bottom to top, and the nitrogen sprayed from the water collecting pipe 25 can expel air in the drilling tool from the long window position on the outer pipe 4, and meanwhile, the air in the drilling tool and the drilling gap is driven to be expelled from bottom to top to above the drilling tool. The gas collecting device 5 collects gas from the vicinity of the strip-shaped window on the outer tube 4 through a pipeline, so that the gas released by the ice melting of the side wall hot-melt drill bit 18 can be collected by the gas collecting device 5 within the shortest distance.
The side wall hot melt drill bit 18 is made of high heat conductive materials such as red copper, etc. to ensure good heat conductive performance and high ice melting speed.
The deflector 22 is made of low temperature resistant rubber such as silica gel, and the maximum free outer diameter is slightly larger than the diameter of the drilled hole so as to ensure that the outer edge of the deflector 22 is always attached to the hole wall, and therefore molten water generated by melting ice of the side wall hot-melt drill bit 18 is guided by the deflector 22 and enters the drilling tool from the through hole of the outer tube 4.
The maximum diameter of the retracted state of the upper annular occluder 7 and the lower annular occluder 24 is smaller than the outer diameter of the borehole, and the maximum diameter of the expanded state can be adapted to the outer diameter of the borehole.
The gas production device 5, the nitrogen injection device 8 and the hydraulic pump station 9 are all existing devices, so specific models and specifications are not repeated.
Fig. 5 shows a schematic diagram of the working process of the in-situ sampling drilling tool with the function Kong Duanduo in the ice drilling, and a, b, c and d show four working states of the in-situ sampling drilling tool with the function Kong Duanduo in the ice drilling, and according to the layout direction of the drawing, the sampling action is performed according to the direction indicated by an arrow in the drawing: function of ice layer drilling internal positioning Kong Duanduo the in-situ sampling drilling tool performs the actions of: a, locating Kong Duanduo functional in-situ sampling drilling tools in the ice layer drilling holes to reach sampling hole sections; b, plugging by the lower annular plugging device 24, and simultaneously expelling the air around the drilling tool by utilizing nitrogen; c, plugging by an annular plugging device 7, and sealing the sampling hole section; d, drilling by using an ice layer drilling internal positioning Kong Duanduo functional in-situ sampling drilling tool and collecting water samples and gas samples in the drilling.
The working principle of the invention is as follows:
the in-situ sampling drilling tool with the function of interior Kong Duanduo in the ice layer drilling can collect water melting, gas in the ice and particulate matters in the ice at the same time at a specific hole section of the drilling, and can collect only the water melting and the particulate matters in the ice.
When the melting water, the gas in the ice and the particulate matters in the ice are collected simultaneously: before drilling, the parts of the drilling tool are sterilized, high-pressure nitrogen with the pressure of 0.8-1MPa is injected into the nitrogen injection device 8, then the drilling tool is lowered to the target depth along the drilling hole by adopting the armored cable 1, and the upper annular plugging device 7 and the lower annular plugging device 24 are in a retracted state in the lowering process.
When the drilling tool reaches the drilling target depth, the hydraulic pump station 9 is controlled to inject oil into the annular space of the lower annular plugging device 24 and the outer tube 4 through the second joint 23, so that the lower annular plugging device 24 is expanded and closely attached to the wall of the drilling hole, and the drilling hole below the drilling tool is closed. The nitrogen injection means 8 is then turned on, allowing nitrogen to be expelled from the vicinity of the cable termination 2 and the header 25 through the tubing, thereby expelling air from the interior and surrounding of the drill. Then the hydraulic pump station 9 is controlled to inject oil into the annular spaces of the upper annular plugging device 7 and the outer tube 4 through the first joint 6, so that the upper annular plugging device 7 is expanded and closely attached to the wall of the hole, thereby sealing the hole above the drilling tool, and forming a sealed space filled with nitrogen between the inside of the drilling tool and the upper plugging device and the lower plugging device. After the upper annular stopper 7 is blocked, the nitrogen injection is stopped.
Then, the hydraulic pump station 9 is controlled to pump oil into the hydraulic oil cylinder 10, so that the oil cylinder piston rod 13 of the hydraulic oil cylinder 10 drives the push rod seat 14 to slowly descend, and further the push rod 16 pushes the side wall hot-melt drill bit 18 to rotate outwards along the third pin 20, and the side wall hot-melt drill bit extends out of the drilling tool from the long strip window reserved in the outer pipe 4. And melting the drilled ice layer. The moving speed of the cylinder piston rod 13 is required to be matched with the ice melting speed of the side wall hot melting drill bit 18 so as to ensure that the side wall hot melting drill bit 18 is always in contact with the ice layer. The water melted by the ice carries the particles melted from the ice and flows downwards along the borehole wall under the action of gravity, and flows into the interior of the drilling tool through the through holes reserved in the outer tube 4 under the guidance of the deflector 22, and is stored in the water collecting pipe 25. When the side wall hot-melt drill 18 rotates to the horizontal position (i.e., the first position), the rotation is stopped under the limiting action of the drill bit seat 21, and the oil pressure of the hydraulic cylinder 10 is increased, so that the hydraulic cylinder 10 is automatically controlled to stop pushing.
After the side wall hot melt drill 18 starts to melt ice, the nitrogen injection device 8 is controlled to continuously inject nitrogen into the hole bottom at a certain flow rate, and the nitrogen at the hole bottom is mixed with the gas released by the cutting ice layer and then is collected into the gas production device 5 through a pipeline.
After the drilling is finished, the nitrogen injection device 8 stops injecting air, the cylinder piston rod 13 is controlled to be slowly retracted, so that the side wall hot-melt drill bit 18 is driven to retract into the outer pipe 4 of the drilling tool, when the side wall hot-melt drill bit 18 is retracted to the second position, the side wall hot-melt drill bit is contacted with a boss on the push rod 16, so that rotation is stopped, and at the moment, the cylinder piston rod 13 can be automatically controlled to stop moving through the oil pressure change of the hydraulic cylinder 10. After the side wall hot-melt drill bit 18 is successfully retracted, the upper annular plugging device 7 and the lower annular plugging device 24 are controlled to discharge oil, the state of the minimum diameter is returned, the drilling tool can be lifted to the ground surface, and the gas sample, the water sample and the particulate matter sample in the gas sampling device 5 and the water collecting pipe 25 are recovered.
And then, nitrogen is re-injected into the earth surface, the gas production device 5 is replaced to complete the sterilization of the drilling tool, and the drilling tool is re-lowered to the next target depth for sampling.
When only the water and the particulates in the ice are collected, after the drilling tool is lowered to the target depth, the side wall hot melt drill bit 18 can be controlled to extend out of the drilling tool to melt the ice layer on the hole wall directly through the hydraulic oil cylinder 10. If the collection hole Duan Jiaochang is needed, after the side wall hot-melt drill bit 18 is extended to the horizontal position (i.e. the first position), the drill is lowered through the armored cable 1, and then the downward ice-melt drilling can be continued, and the melted water and the particulates in the ice are continuously collected in the water collecting pipe 25.
In practical application, the water collecting pipes 25 with different lengths can be replaced according to the amount of water to be collected.
Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that the present invention is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210685934.8A CN115060531B (en) | 2022-06-17 | 2022-06-17 | A multifunctional in-situ sampling drill for fixed hole section in ice drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210685934.8A CN115060531B (en) | 2022-06-17 | 2022-06-17 | A multifunctional in-situ sampling drill for fixed hole section in ice drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115060531A CN115060531A (en) | 2022-09-16 |
| CN115060531B true CN115060531B (en) | 2024-11-22 |
Family
ID=83202948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210685934.8A Active CN115060531B (en) | 2022-06-17 | 2022-06-17 | A multifunctional in-situ sampling drill for fixed hole section in ice drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115060531B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661555A (en) * | 2018-06-25 | 2018-10-16 | 吉林大学 | Hot gas ice sheet core bit |
| CN109477371A (en) * | 2016-07-20 | 2019-03-15 | P·I·波波夫 | Method for Enhanced Oil Recovery and Enhanced Production of Oil, Gas and Condensate Wells by Hydraulic Dynamometer Radial Unbalanced Formation Penetration |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2347085A2 (en) * | 2008-10-08 | 2011-07-27 | Potter Drilling, Inc. | Methods and apparatus for mechanical and thermal drilling |
| CN113027337B (en) * | 2021-02-20 | 2023-03-14 | 广州海洋地质调查局 | Simple small pressure difference testing method with drilling, well completion and gas testing functions |
| CN113358408A (en) * | 2021-07-28 | 2021-09-07 | 内蒙古农业大学 | Sampler for freezing ice bodies in different depths of rivers and lakes |
| CN114296127A (en) * | 2021-12-31 | 2022-04-08 | 杭州电子科技大学 | Ice penetration detector capable of carrying AUV and method for distributing and recovering AUV |
-
2022
- 2022-06-17 CN CN202210685934.8A patent/CN115060531B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109477371A (en) * | 2016-07-20 | 2019-03-15 | P·I·波波夫 | Method for Enhanced Oil Recovery and Enhanced Production of Oil, Gas and Condensate Wells by Hydraulic Dynamometer Radial Unbalanced Formation Penetration |
| CN108661555A (en) * | 2018-06-25 | 2018-10-16 | 吉林大学 | Hot gas ice sheet core bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115060531A (en) | 2022-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110593837B (en) | Fracturing construction operation method for soluble full-bore sliding sleeve | |
| CN108119091B (en) | Well cementation and completion pipe string and method | |
| CN203308447U (en) | Intelligent electric switch sliding sleeve | |
| CN111852449A (en) | A continuous dragged horizontal well fluid production segmented testing system | |
| CN115060531B (en) | A multifunctional in-situ sampling drill for fixed hole section in ice drilling | |
| CN104329083A (en) | Pushing and setting device | |
| CN207017986U (en) | A kind of novel intelligent well cementation sliding sleeve | |
| CN204804834U (en) | Push away and lean on seating and sealing unit | |
| CN104533359A (en) | Same-well reinjection water injection process pipe column and method for exploiting high-pour-point oil | |
| CN103573214A (en) | Circulation bottom valve which works with pressure | |
| CN112523712A (en) | Device and method for repairing damaged well wall | |
| CN202990953U (en) | Screw pump blowout prevention mechanical anchor | |
| CN202064912U (en) | Uniformly-rotating blockage removing tool for horizontal well | |
| CN202033212U (en) | Horizontally directional sampling drilling tool for non-cohesive soil | |
| CN203614079U (en) | Circulating bottom valve operated under pressure | |
| CN104343430A (en) | Method for staged fracturing of well cementation casing string and tool for method | |
| CN217001800U (en) | Self-flowing water injection device of ultra-deep fracture-cavity reservoir oil well | |
| CN110439551A (en) | A kind of underground water sampler and tilting groundwater sampling system | |
| CN214170486U (en) | A device for repairing damaged well walls | |
| CN113027337B (en) | Simple small pressure difference testing method with drilling, well completion and gas testing functions | |
| CN102434136A (en) | Electric pump oil production positive water injection integral pipe column and application method thereof | |
| CN115059390B (en) | A device for collecting gas while drilling in polar glaciers | |
| CN109779547B (en) | Downhole liquid flow reversing tool | |
| CN202249955U (en) | Well washing cut-off device | |
| CN106351581A (en) | Ultra-carbon connecting tube jet drilling horizontal well system and jet drilling method |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |