CN209654026U - Wellbore aquation deforms infrared monitoring device - Google Patents

Wellbore aquation deforms infrared monitoring device Download PDF

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Publication number
CN209654026U
CN209654026U CN201920261832.7U CN201920261832U CN209654026U CN 209654026 U CN209654026 U CN 209654026U CN 201920261832 U CN201920261832 U CN 201920261832U CN 209654026 U CN209654026 U CN 209654026U
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CN
China
Prior art keywords
confining pressure
measured
rock core
wellbore
aquation
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Withdrawn - After Issue
Application number
CN201920261832.7U
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Chinese (zh)
Inventor
杨进
施山山
陈浩东
黄熠
顾纯巍
殷启帅
李振坤
李文龙
陈雷
李磊
王欢欢
邓贺
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China University of Petroleum Beijing
Engineering Technology Branch of CNOOC Energy Technology and Services Ltd
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China University of Petroleum Beijing
Engineering Technology Branch of CNOOC Energy Technology and Services Ltd
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Priority to CN201920261832.7U priority Critical patent/CN209654026U/en
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Publication of CN209654026U publication Critical patent/CN209654026U/en
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Abstract

The utility model provides a kind of wellbore aquation deformation infrared monitoring device comprising: outer barrel has sealing inner cavity;Loading mechanism, in sealing inner cavity, loading mechanism has axis pressure loaded member and confining pressure loaded member for setting;Wherein, confining pressure loaded member has the two confining pressure half modules that can open and close setting, and two confining pressure half modules are disposed around the periphery of rock core to be measured, and axis pressure loaded member can be axially movably arranged at the upper end of rock core to be measured;Mechanism for filling liquid has sealing liquid pool and catheter, and sealing liquid pool is connected to the top of outer barrel, and one end of catheter is connected with sealing liquid pool, and the other end can protrude into rock core to be measured;Mechanism for monitoring has electrode and infrared detector, and electrode is arranged in above the eyelet of rock core to be measured, and the hole that rock core to be measured is arranged in infrared detector is intraocular.The case where the utility model can simulate in the eyelet of rock core to be measured under the conditions of soaked, and the eyelet of the rock core to be measured deforms, and real-time monitoring is carried out to it.

Description

Wellbore aquation deforms infrared monitoring device
Technical field
The utility model relates to oil drilling rock mechanics technical field more particularly to wellbore aquation deformation infrared monitoring dresses It sets.
Background technique
As the instruction reinforced to oil and gas development of resources dynamics is made by country, each major oil companies will be increased The dynamics of oil-gas exploration and development, the discovery amount and yield for ensuring petroleum resources by increasing the quantity of prospect pit and development well meet National strategy demand and the people need.And inevitably, due to the limitation of exploration, drilling well, production technology and equipment capability, Being difficult to the oil reservoir employed in the past will gradually be included into development goal.Such as the Partial Block in China Bohai Sea and the South Sea, due to shallow Layer diagenesis difference or part layer position fracture development and clay mineral content height cause to will appear big section when boring and meeting these layer of position Borehole collapse unstability accident, cause down-hole equipment blocked portion, cementing quality difference etc., scene will usually devote a tremendous amount of time, people Power and material resources go to solve down hole problem, cause to be drilled that well operations timeliness is extremely low, and operating cost is drawn high.For clear sensitizing range The hole-size elongation reason in domain and the regularity of distribution of region deformation, it is necessary to develop a set of can be monitored in real time inside wellbore actually for pole The indoor experimental apparatus of situation, the device can simulate actual borehole size and carry out full-scale indoor experiment of machanics, with close to Live actual operation.
Utility model content
The purpose of the utility model is to provide a kind of wellbore aquations to deform infrared monitoring device, can simulate rock core to be measured The case where eyelet is interior under the conditions of soaked, and the eyelet of the rock core to be measured deforms, and real-time monitoring is carried out to it, this is practical new Type is simple and efficient.
Following technical proposal can be used to realize in the above-mentioned purpose of the utility model:
The utility model provides a kind of wellbore aquation deformation infrared monitoring device, comprising:
Outer barrel has sealing inner cavity;
Loading mechanism is arranged in the sealing inner cavity, and the loading mechanism has axis pressure loaded member and confining pressure loaded member; Wherein, the confining pressure loaded member has the two confining pressure half modules that can open and close setting, and two confining pressure half modules are disposed around rock to be measured The periphery of the heart, the axis pressure loaded member can be axially movably arranged at the upper end of the rock core to be measured;
Mechanism for filling liquid has sealing liquid pool and catheter, and the sealing liquid pool is connected to the top of the outer barrel, described One end of catheter is connected with the sealing liquid pool, and the other end can protrude into the rock core to be measured;
Mechanism for monitoring has electrode and infrared detector, and the electrode is arranged in above the eyelet of the rock core to be measured, institute State infrared detector be arranged in the rock core to be measured hole it is intraocular.
In the embodiments of the present invention, the axis pressure loaded member includes load ontology, and the load ontology has Load bar and the loading blocks being connected with the load bar, the lower end surface of the loading blocks are connected with axial dottle pin, the axial direction every Axis pressure heating coil is folded between pad and the loading blocks.
In the embodiments of the present invention, first pressure sensor is embedded in the axial direction dottle pin.
In the embodiments of the present invention, the axis pressure loaded member further includes that can drive the load ontology described in The axis pressure power component of the axial movement of rock core to be measured, the axis pressure power component include:
Support base is fixedly connected on the top of the outer barrel;
Transmission shaft, one end are threaded through in the support base with being able to rotate, and the other end is socketed with transmission gear;
Driving rack can be axially movably arranged on the support base, and the driving rack can be with the transmission gear Transmission connection, the driving rack are connected to the load bar and are pierced by the end of the outer barrel.
In the embodiments of the present invention, the infrared detector has vertical bar and is connected in the vertical bar The radial bars at end have been movably coupled to infrared distance measurement probe in the radial bars, and the vertical bar is threaded through the rock to be measured The hole of the heart is intraocular, and the infrared distance measurement probe is located at the upper end of the eyelet.
In the embodiments of the present invention, the mechanism for monitoring has bearing base, the loading mechanism and described Rock core to be measured is placed on the bearing base, and the bearing base has mounting groove, the vertical bar of the infrared detector Lower end is connected in the mounting groove.
In the embodiments of the present invention, the confining pressure loaded member includes transmission parts and confining pressure power part;Its In,
The transmission parts include two drive rods, and one end of the drive rod is connected to the outer wall of the confining pressure half module On, the other end of the drive rod has been rotatably coupled lead screw by drive bearing;
The confining pressure power part includes dextrorotation worm gear and derotation worm gear on the worm screw of worm screw and transmission connection, and two Two lead screws on a drive rod are worn respectively to be connected in the dextrorotation worm gear and the derotation worm gear.
In the embodiments of the present invention, the barrel of the outer barrel is perforated equipped with two diametrically, and two Gag lever post is connected separately on a drive rod, the gag lever post can be threaded through in the perforation.
In the embodiments of the present invention, the confining pressure loaded member, which has, is diametrically arranged in two confining pressures Two support rods on the outside of half module, one end of the support rod are rotatably connected on the confining pressure half module, the support rod The other end be connected with pulley.
In the embodiments of the present invention, it is respectively connected with confining pressure dottle pin on the inside of two confining pressure half modules, it is described Confining pressure heating coil is folded between confining pressure dottle pin and the confining pressure half module.
In the embodiments of the present invention, second pressure sensor is embedded in the confining pressure dottle pin.
In the embodiments of the present invention, the electrode is connected to the lower end of the axis pressure loaded member.
The wellbore aquation of the utility model deforms the characteristics of infrared monitoring device and advantage is: the wellbore water of the utility model Change deformation infrared monitoring device to be simple and efficient, single triaxial tests, the kayser of large scale rock core can be carried out by the utility model The true hole condition simulation of your effect experiment, aquation experiment etc., and to the wellbore inside large scale rock core under conditions of soaked, it is real When monitor its deformation and analyzed, when further to define the wellbore of block where rock core used in experiment and occurring soaked Deformation Reasons and hole-size elongation the regularity of distribution.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is that the wellbore aquation of the utility model deforms the structural schematic diagram of infrared monitoring device.
Fig. 2 is that the axis of the utility model presses the structural schematic diagram of loaded member.
Fig. 3 is the structural schematic diagram that the axis of the utility model presses the axis pressure power component of loaded member.
Fig. 4 is the structural schematic diagram at another visual angle that the axis of the utility model presses the axis pressure power component of loaded member.
Fig. 5 is the structural schematic diagram of the confining pressure loaded member of the utility model.
Fig. 6 is the overlooking structure diagram of the confining pressure half module of the confining pressure loaded member of the utility model.
Fig. 7 is the structural schematic diagram of the infrared detector of the mechanism for monitoring of the utility model.
Fig. 8 is the structural schematic diagram that the wellbore aquation of the utility model deforms another visual angle of infrared monitoring device.
Drawing reference numeral explanation: 1, outer barrel;11, inner cavity is sealed;12, outer cylinder ontology;121, upper connecting flange;13, laxative remedy Blue disk;131, outer rim;14, top cover;15, pedestal;16, bolt;17, bolt;18, it perforates;19, gag lever post;2, loading mechanism; 21, axis presses loaded member;211, ontology is loaded;2111, load bar;2112, loading blocks;2113, axial dottle pin;2114, axis pressure adds Heat coil;2115, first pressure sensor;2116, recess space;212, axis pressure power component;2121, support base;2122, it passes Moving axis;2123, driving rack;2124, transmission gear;2125, bearing;2126, gear inner cylinder;22, confining pressure loaded member;221, it encloses Press half module;222, transmission parts;2221, drive rod;2222, drive bearing;2223, lead screw;223, confining pressure power part; 2231, worm screw;2232, dextrorotation worm gear;2233, derotation worm gear;2234, outer housing;2235, worm gear seat;2236, motor;224, Confining pressure dottle pin;225, confining pressure heating coil;226, second pressure sensor;3, mechanism for monitoring;31, electrode;32, infrared monitoring Device;321, vertical bar;322, radial bars;323, infrared distance measurement is popped one's head in;33, bearing base;4, rock core to be measured;41, eyelet;5, comprehensive Close control system;51, data collector;52, processor;6, mechanism for filling liquid;61, liquid pool is sealed;62, catheter;63, motor-driven valve Door;64, conduit;7, balance mechanism;71, support rod;72, pulley.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, the utility model provides a kind of wellbore aquation deformation infrared monitoring device, including outer barrel 1 plus Mounted mechanism 2, mechanism for filling liquid 6 and mechanism for monitoring 3, in which: outer barrel 1 has sealing inner cavity 11;Loading mechanism 2 is arranged described close It seals in inner cavity 11, the loading mechanism 2 has axis pressure loaded member 21 and confining pressure loaded member 22;Wherein, the confining pressure loaded member 22 With the two confining pressure half modules 221 that can open and close setting, two confining pressure half modules 221 are disposed around the periphery of rock core 4 to be measured, described Axis pressure loaded member 21 can be axially movably arranged at the upper end of the rock core to be measured 4;Mechanism for filling liquid 6 has sealing liquid pool 61 and leads Liquid pipe 62, the sealing liquid pool 61 are connected to the top of the outer barrel 1, one end of the catheter 62 and the sealing liquid pool 61 are connected, and the other end can protrude into the rock core to be measured 4;Mechanism for monitoring 3 has electrode 31 and infrared detector 32, the electricity The top of the eyelet 41 of the rock core to be measured 4 is arranged in pole 31, and the hole of the rock core to be measured 4 is arranged in the infrared detector 32 In eye 41.
The wellbore aquation of the utility model deforms infrared monitoring device, is simple and efficient, and can carry out to large scale rock core real Test examination, the large scale rock core may be, for example, diameter be 6 inches, 8 inches or 12.25 inches etc., height be about diameter 1.5~ 2 times of tubular rock core 4 to be measured, in the present embodiment, the rock core 4 to be measured are in substantially cylindrical, having a size of φ 2.54 × 5cm, the utility model can the deformation of eyelet to large scale rock core under the conditions of soaked carry out real-time monitoring with Analysis further to define Deformation Reasons and well of the wellbore of the 4 place block of rock core to be measured in experiment under the conditions of soaked The regularity of distribution of eye deformation.
Specifically, outer barrel 1 is substantially in cylinder barrel shaped, with outer cylinder ontology 12, the lower end of outer cylinder ontology 12, which seals, to be connected It is connected to lower flange 13, the upper end of outer cylinder ontology 12 is sealedly connected with top cover 14, by top cover 14, outer cylinder ontology 12 and lower flange The outer barrel 1 of 13 compositions is formed with sealing inner cavity 11.In the present embodiment, upper company is formed in the upper end outer rim of outer cylinder ontology 12 Acting flange 121, top cover 14 are connected by multiple bolts 16 with upper connecting flange 121;The outer diameter of lower flange 13 is greater than outer cylinder sheet The outer diameter of body 12, the outer rim 131 beyond outer cylinder ontology 12 can be realized for outer barrel 1 to be connected to by multiple bolts 17 to be located at Purpose on the pedestal 15 of 1 lower section of outer barrel.In the present embodiment, the quantity of those bolts 16 and those bolts 17 may respectively be 4,8 or more, multiple bolts 16 and circumferencial direction of the multiple bolts 17 respectively along top cover 14 and lower flange 13 are equal Even and interval setting.
The loading mechanism 2 is arranged in the sealing inner cavity 11 of outer barrel 1, which is used to apply rock core 4 to be measured Loading force, to meet requirement of experiment.The loading mechanism 2 has axis pressure loaded member 21 and confining pressure loaded member 22.
Axis pressure loaded member 21 can be axially movably arranged at the upper end of the rock core to be measured 4, be used for rock core 4 to be measured Apply axial loading force.
Specifically, the load ontology 211 has load as shown in Fig. 2, axis pressure loaded member 21 includes load ontology 211 Bar 2111 and the loading blocks 2112 being connected with load bar 2111, the lower end surface of the loading blocks 2112 are connected with axial dottle pin 2113, Axis pressure heating coil 2114 is folded between the axial direction dottle pin 2113 and loading blocks 2112.In the present embodiment, the loading blocks 2112 substantially hemispherical shapes, can also be used other shapes, herein with no restrictions certainly;Load bar 2111 is substantially in cylindrical body Shape, screw thread or welded connecting are in the upper end of loading blocks 2112;Axial dottle pin 2113 has certain thickness, uses easily-deformable Metal material be made, such as perhaps the axial direction dottle pin 2113 can also be heatproof plastic pipe or the axial direction dottle pin to sheet lead etc. 2113 can also be the soft bag of internal filling fine sand grain or oil resistant, and herein with no restrictions, which can be true The upper surface uniform stressed for protecting rock core 4 to be measured is avoided because of the lower end surface of 4 surface irregularity of rock core to be measured or loading blocks 2112 injustice The whole upper surface discontinuity for leading to rock core 4 to be measured;Axis pressure heating coil 2114, which is uniformly laid with, is fixed on loading blocks 2112 On bottom face, namely it is located between loading blocks 2112 and axial dottle pin 2113, axis pressure heating coil 2114 upon power-up can Enough fevers are heated with the rock core to be measured 4 to axial dottle pin 2113 and internal package.
Further, first pressure sensor 2115 is embedded in the axial direction dottle pin 2113.The first pressure sensor 2115 are embedded at the lower end surface of axial dottle pin 2113, under the lower end surface of the first pressure sensor 2115 and axial dottle pin 2113 End face is concordant, can monitor the pressure size of axis suffered by the upper surface of rock core 4 to be measured.
As shown in Figure 3 and Figure 4, axis pressure loaded member 21 further includes axial direction of the energy drive load ontology 211 along rock core 4 to be measured Mobile axis pressure power component 212, the axis pressure power component 212 include support base 2121, transmission shaft 2122 and driving rack 2123, in which: support base 2121 is fixedly connected on the top of outer barrel 1;One end of transmission shaft 2122 is threaded through branch with being able to rotate It supports in seat 2121, the other end is socketed with transmission gear 2124;Driving rack 2123 can be axially movably arranged at support base On 2121, which can be sequentially connected with transmission gear 2124, which is connected to load bar 2111 It is pierced by the end of outer barrel 1.
Specifically, being equipped with bearing 2125 in support base 2121, one end of transmission shaft 2122 is arranged in bearing 2125, is driven Axis 2122 and 2125 inner ring of bearing are fitted close, and 2125 outer ring of bearing is fixed on support base 2121, transmission shaft 2122 it is another End cap is connected to transmission gear 2124, and the right end side of the transmission gear 2124 is connected with gear inner cylinder 2126, the gear inner cylinder 2126 internal diameter is identical as the inner ring internal diameter of transmission gear 2124, and the outer diameter of the gear inner cylinder 2126 is less than transmission gear 2124 Diameter;The inner ring and gear inner cylinder 2126 of transmission shaft 2122 and transmission gear 2124 are fitted close.Driving rack 2123 and transmission Gear 2124 engages, and can be movably set on support base 2121, which is fixedly linked with load bar 2111.It passes Moving axis 2122 driven by the motor with 2125 inner ring synchronous rotary of bearing, while with 2124 synchronous rotary of nutating gear, and The driving rack 2123 engaged with transmission gear 2124 is under the drive of the transmission gear 2124 of rotation, along on support base 2121 Lower movement, moving direction is identical as the axis direction of outer barrel 1, and driving rack 2123 is on support base 2121 in limited shape State can only move, along vertical direction without sidesway occurs in the horizontal direction.
The confining pressure loaded member 22 is for applying circumferential loading force to rock core 4 to be measured.The confining pressure loaded member 22 has and can open and close Two confining pressure half modules 221 being arranged, two confining pressure half modules 221 are disposed around the periphery of rock core 4 to be measured.
Specifically, as shown in Figure 5 and Figure 6, which is substantially in semi-toroidal shape, two confining pressure half modules 221 are right It is buckled together to form complete circle, to cooperate with tubular rock core 4 to be measured, certainly in other examples, root According to the outer shape of rock core 4 to be measured, which is also designed to other shapes, encloses rock core 4 to be measured as long as being able to achieve If getting up and providing circumferential loading force to rock core 4 to be measured, the shape of confining pressure half module 221 is not limited herein.
In the present invention, the inside of two confining pressure half modules 221 is respectively connected with confining pressure dottle pin 224, the confining pressure dottle pin 224 Confining pressure heating coil 225 is folded between confining pressure half module 221.In the present embodiment, which has certain thickness Degree, uses easily-deformable metal material to be made, such as sheet lead etc. or the confining pressure dottle pin 224 can also be heatproof plastic pipe, or Person's confining pressure dottle pin 224 can also be the soft bag of internal filling fine sand grain or oil resistant, herein with no restrictions, the confining pressure dottle pin 224 may insure the periphery wall surface uniform stressed of rock core 4 to be measured, avoid because of 4 surface irregularity of rock core to be measured or confining pressure half module 221 Medial surface out-of-flatness lead to the peripheral wall surfaces discontinuity of rock core 4 to be measured.
In the present invention, second pressure sensor 226 is embedded in confining pressure dottle pin 224, second pressure sensing Device 226 is embedded in the inner face of confining pressure dottle pin 224, the end face of the second pressure sensor 226 and the inner face of confining pressure dottle pin 224 It flushes, to monitor confining pressure size suffered by the peripheral wall surfaces of rock core 4 to be measured.The confining pressure heating coil 225, which is uniformly laid with, to be fixed on On the inner sidewall of confining pressure half module 221, namely between confining pressure half module 221 and confining pressure dottle pin 224, the confining pressure heating coil 225 It can generate heat, be heated with the rock core to be measured 4 to confining pressure dottle pin 224 and internal package upon power-up.
Further, in the present invention, which further includes transmission parts 222 and confining pressure power part 223;Wherein, which includes two drive rods 2221, and one end of the drive rod 2221 is connected to confining pressure half module 221 Outer wall on, the other end of the drive rod 2221 has been rotatably coupled lead screw 2223 by drive bearing 2222;The confining pressure is dynamic Dextrorotation worm gear 2232 and derotation worm gear 2233 of the power component 223 including worm screw 2231 and transmission connection on worm screw 2231, two Two lead screws 2223 on drive rod 2221 are worn respectively to be connected in dextrorotation worm gear 2232 and derotation worm gear 2233.
Each drive rod 2221 of the transmission parts 222 is substantially in U-shape shape, and one end of the drive rod 2221, which is welded, to be connected Connect on the outer wall of confining pressure half module 221, the inner ring of the other end and drive bearing 2222 is fitted close, one end of lead screw 2223 with The outer ring of drive bearing 2222 is welded, and the other end and dextrorotation worm gear 2232 or derotation worm gear 2233 are sequentially connected.
The confining pressure power part 223 has outer housing 2234, and outer housing 2234 is mounted on the bottom of outer barrel 1, the shell There are two worm gear seats 2235 for upper end connection in body 2234, wherein worm screw 2231 is threaded through in outer housing 2234, is pierced by shell One end of body 2234 is connected with motor 2236, passes through bearing (in figure not respectively between the both ends and outer housing 2234 of worm screw 2231 Show) it is fixedly connected, to reduce its rotary resistance;Dextrorotation worm gear 2232 and derotation worm gear 2233 are located at two worm gear seats In 2235, the two is in the position of horizontal parallel and is located at the top of worm screw 2231 and is intermeshed with worm screw 2231, worm screw 2231 rotate under the drive of motor 2236, and dextrorotation worm gear 2232 and derotation worm gear 2233 is driven to rotate.In the utility model In, the inner ring of dextrorotation worm gear 2232 is connected through a screw thread corresponding lead screw 2223 with the inner ring of derotation worm gear 2233 respectively, thus So that two lead screws 2223, in the case where the rotation of dextrorotation worm gear 2232 and derotation worm gear 2233 drives, energy opposite shell body 2234 is horizontal Mobile setting.In the present embodiment, one end of two lead screws 2223 is located in outer housing 2234, and the other end is located at outer housing 2234 outside.
In the embodiments of the present invention, as shown in Figure 1, the barrel of outer barrel 1 is equipped with two diametrically Perforation 18, as shown in figure 5, being connected separately with gag lever post 19 on two drive rods 2221, which can seal and be threaded through In hole 18.Specifically, gag lever post 19 is threadedly attached in the outside of drive rod 2221, the two sides and lower end surface in perforation 18 can Equipped with roller (not shown), roller can roll at perforation 18, but its activity space is limited to perforation 18, the effect of roller Mainly reduce drag size when gag lever post 19 moves in the horizontal direction, to reduce two confining pressures of confining pressure loaded member 22 Resistance when half module 221 moves in the horizontal direction.
As shown in Figure 1, the sealing liquid pool 61 of the mechanism for filling liquid 6 is fixedly connected on the top cover 14 of outer barrel 1, the catheter 62 one end is connected by electrically operated valve 63, conduit 64 with sealing liquid pool 61, and the other end can protrude into rock core 4 to be measured.At this In utility model, the catheter 62 setting is pierced by one end energy of loading blocks 2112 in load bar 2111 and loading blocks 2112 It protrudes into the eyelet 41 of rock core 4 to be measured.The mechanism for filling liquid 6 for injecting fluid into the eyelet 41 of rock core 4 to be measured, with simulation to Survey the soaked condition of rock core 4.
Mechanism for monitoring 3 has electrode 31 and infrared detector 32, which is arranged in the upper of the eyelet 41 of rock core 4 to be measured Side, the infrared detector 32 are arranged in the eyelet 41 of rock core 4 to be measured.
In the present invention, if there are two electrode 31, two electrodes 31, which insulate, is connected to the lower end of axis pressure loaded member 21, Namely it is connected to the lower end of the loading blocks 2112 of axis pressure loaded member 21, the middle part of the axial direction dottle pin 2113 is formed with recess space 2116, to accommodate two electrodes 31, when axis pressure loaded member 21 is pressed on the upper surface of rock core 4 to be measured, two electrodes 31 It is located exactly at right above the eyelet 41 of rock core 4 to be measured.It is high that the electrode 31 is used to monitor the liquid level in the eyelet 41 of rock core 4 to be measured Degree.Two electrodes 31 lead to weak current at work, when the fluid in the eyelet 41 of rock core 4 to be measured floods two electrodes 31, Two electrodes 31 are powered, and power on signal can be transmitted to complex control system 5, to control the closing of electrically operated valve 63, and work as When fluid level in the eyelet 41 of rock core 4 to be measured is lower than two electrodes 31, two electrodes 31 are not connected to, disconnected signal It can be transmitted to complex control system 5, to control the unlatching of electrically operated valve 63, until the fluid being passed through in eyelet 41 just floods Two electrodes 31.
In the present invention, as shown in fig. 7, the mechanism for monitoring 3 has bearing base 33, the bearing base 33 is mountable On the outer housing 2234 of confining pressure power part 223, the bearing base 33 is substantially in disk form, is equipped among it hollow recessed Slot;In the present embodiment, infrared detector 32 has vertical bar 321 and is connected to the radial bars 322 of 321 upper end of vertical bar, should Infrared distance measurement probe 323 is movably coupled in radial bars 322, which is threaded through the eyelet 41 of rock core 4 to be measured Interior, infrared distance measurement probe 323 is located at the upper end of eyelet 41.The lower end of the vertical bar 321 is connected to the groove of bearing base 33 In, it is connected through a screw thread between the upper end and radial bars 322 of the vertical bar 321 in order to install.
In the present invention, there is driving device inside bearing base 33, can be used for driving the vertical of infrared detector 32 The infrared distance measurement probe 323 of 321 rotation of bar, infrared detector 32 can be along the eyelet of rock core 4 to be measured under the driving of vertical bar 321 41 rotate in a circumferential direction, while infrared distance measurement probe 323 can move horizontally in radial bars 322 along the radial direction of rock core to be measured, In the present embodiment, the initial point position of infrared distance measurement probe 323 is close to the upper end inner sidewall of eyelet 41, by initial measuring point Place is used for ranging along the axial direction transmitting infrared ray of eyelet 41, when distance measurement value is less than the height of eyelet 41, the infrared distance measurement Probe 323 is moved along the radial direction of eyelet 41 until distance measurement value is equal to the height of eyelet 41;When distance measurement value is high equal to eyelet 41 When spending, infrared distance measurement probe 323 rotates under the driving of vertical bar 321 along the circumferential direction of eyelet 41 at this time.
An embodiment according to the present utility model, which further includes comprehensively control System 5 comprising data collector 51 and processor 52, the processor 52 are used for the Information Number being collected into data collector 51 According to being analyzed, and motor etc. is operated, while the data that recording and displaying monitors.
Specifically, the electric signal of the electrode 31 can be transmitted to complex control system 5, to control the unlatching of electrically operated valve 63 Or it closes.The electric signal of the infrared detector 32 can be transmitted to complex control system 5, so that the eyelet 41 to rock core 4 to be measured becomes Shape situation carries out real-time monitoring.The complex control system 5 can also control the motor of motor 2236 and control transmission shaft 2122 System, so as to going on smoothly for experiment.
As shown in figure 8, wellbore aquation deformation infrared monitoring device also has balance mechanism 7, which has diameter To two support rods 71 for being oppositely arranged on two confining pressure half modules, 221 outside, one end of the support rod 71 is rotatably connected to On confining pressure half module 221, the other end of the support rod 71 is connected with pulley 72.The balance mechanism 7 can guarantee confining pressure loaded member 22 Equilibrium state will not tilt.
The monitoring method that the wellbore aquation deforms infrared monitoring device is as follows:
Step S1: laying down multiple bolts 16 for fixing top cover 14 and removes top cover 14, and hanging internal machined has hole Center in the rock core to be measured 4 to outer barrel 1 of eye 41, the depth of record eyelet 41 are H0, and the diameter of eyelet 41 is R0;
Step S2: connecting infrared detector 32 and adjusts the initial position of the infrared distance measurement probe 323 of infrared detector 32 To H=H0;
Step S3: the top cover 14 for connecting pipeline is sat to the upper end for being placed on outer barrel 1, and is consolidated using multiple bolts 16 It is fixed to be tightly connected;
Step S4: connection complex control system 5, setting shaft pressure value, confining pressure value and temperature condition open mechanism for filling liquid 6 Electrically operated valve 63, injects fluid into the eyelet 41 of rock core 4 to be measured, and the level of setting infrared distance measurement probe 323 rotates in a circumferential direction speed Rate, making it with given pace rotation and real-time monitoring record measuring point, (catch point namely 41 inner wall of eyelet deform to catch point Location point) distance H1;
Step S5: the motor of starting axis pressure loaded member 21 and the motor 2236 of confining pressure loaded member 22 open axis and press heater wire The power supply of circle 2114 and confining pressure heating coil 225 makes axis pressure loaded member 21 and confining pressure loaded member 22 to the rock to be measured in outer barrel 1 The heart 4, which synchronizes, to pressurize, until pressure value reaches setting value, and maintains axis pressure and confining pressure to setting duration, and axis presses heater wire Rock core 4 to be measured is heated in circle 2114 and the start-up operation of confining pressure heating coil 225;
Step S6: as the distance H1=H0 of monitoring, infrared distance measurement probe 323 under the drive of vertical bar 321 circumferentially Rotation, at the same obtain H2, H3 ... Hn, until the infrared distance measurement probe of the infrared detector 32 is 323 radially when Hn is less than H0 Bar 322 is slided to the axis direction of rock core 4 to be measured until measuring H=H0, monitoring and recording infrared distance measurement probe 323 in radial bars Moving displacement W on 322 resets higher axis pressure and confining pressure according to step S4 and step S5, continues pressurization experiment And maintain pressure to setting duration;
Step S7: when infrared distance measurement probe 323 measures H value less than H0, illustrating that undergauge has occurred for eyelet 41, this moment infrared Range finding probe 323 is by moving simultaneously real-time monitoring H value to the axis direction of rock core 4 to be measured in radial bars 322, until H=H0, Undergauge feelings of the infrared distance measurement probe 323 inside the eyelet 41 that the moving displacement in radial bars 322 reflects rock core 4 to be measured Condition.
The wellbore aquation of the utility model deforms infrared monitoring device, can solve oil/gas drilling especially ocean Shallow Oil-Gas The indefinite problem of Deformation Reasons of well-drilling borehole under the conditions of soaked.The utility model can carry out the mechanics of large scale rock core Experiment, analog high-temperature stratum (such as temperature is greater than 150 degrees Celsius of stratum);Ground when practical drilling can really be simulated Layer and borehole condition, experimental result is closer to live practical;The utility model is pressed using worm and gear and rack-and-pinion Power loads the accuracy controlling, it can be achieved that on-load pressure;The experiment condition of the device of the utility model is safely controllable, avoids hydraulic The risk of oily loading method high pressure fluid leakage, structure is simpler, low in cost, is easy to use.
The foregoing is merely several embodiments of the utility model, and those skilled in the art is according to disclosed in application documents Content can carry out various changes or modifications without departing from the spirit and scope of the utility model to the utility model embodiment.

Claims (12)

1. a kind of wellbore aquation deforms infrared monitoring device characterized by comprising
Outer barrel has sealing inner cavity;
Loading mechanism is arranged in the sealing inner cavity, and the loading mechanism has axis pressure loaded member and confining pressure loaded member;Its In, the confining pressure loaded member has the two confining pressure half modules that can open and close setting, and two confining pressure half modules are disposed around rock core to be measured Periphery, axis pressure loaded member can be axially movably arranged at the upper end of the rock core to be measured;
Mechanism for filling liquid, has sealing liquid pool and catheter, and the sealing liquid pool is connected to the top of the outer barrel, the drain One end of pipe is connected with the sealing liquid pool, and the other end can protrude into the rock core to be measured;
Mechanism for monitoring has electrode and infrared detector, and the electrode is arranged in above the eyelet of the rock core to be measured, described red The hole that the rock core to be measured is arranged in external monitor device is intraocular.
2. wellbore aquation as described in claim 1 deforms infrared monitoring device, which is characterized in that the axis pressure loaded member includes Load ontology, the loading blocks that the load ontology has load bar and is connected with the load bar, the lower end surface of the loading blocks It is connected with axial dottle pin, axis pressure heating coil is folded between the axial direction dottle pin and the loading blocks.
3. wellbore aquation as claimed in claim 2 deforms infrared monitoring device, which is characterized in that be embedded in the axial direction dottle pin There is first pressure sensor.
4. wellbore aquation as claimed in claim 2 or claim 3 deforms infrared monitoring device, which is characterized in that the axis presses loaded member It further include the axis pressure power component that can drive axial movement of the load ontology along the rock core to be measured, axis pressure power portion Part includes:
Support base is fixedly connected on the top of the outer barrel;
Transmission shaft, one end are threaded through in the support base with being able to rotate, and the other end is socketed with transmission gear;
Driving rack can be axially movably arranged on the support base, and the driving rack can be driven with the transmission gear Connection, the driving rack are connected to the load bar and are pierced by the end of the outer barrel.
5. wellbore aquation as claimed in claim 2 deforms infrared monitoring device, which is characterized in that the infrared detector has Vertical bar and the radial bars for being connected to the vertical bar upper end have been movably coupled to infrared distance measurement probe in the radial bars, The hole that the vertical bar is threaded through the rock core to be measured is intraocular, and the infrared distance measurement probe is located at the upper end of the eyelet.
6. wellbore aquation as claimed in claim 5 deforms infrared monitoring device, which is characterized in that the mechanism for monitoring, which has, to be held Pedestal is carried, the loading mechanism and the rock core to be measured are placed on the bearing base, and the bearing base has mounting groove, The lower end of the vertical bar of the infrared detector is connected in the mounting groove.
7. wellbore aquation as described in claim 1 deforms infrared monitoring device, which is characterized in that the confining pressure loaded member includes Transmission parts and confining pressure power part;Wherein,
The transmission parts include two drive rods, and one end of the drive rod is connected on the outer wall of the confining pressure half module, institute The other end for stating drive rod has been rotatably coupled lead screw by drive bearing;
The confining pressure power part includes the dextrorotation worm gear and derotation worm gear of worm screw and transmission connection on the worm screw, two institutes It states two on drive rod lead screws and wears respectively and be connected in the dextrorotation worm gear and the derotation worm gear.
8. wellbore aquation as claimed in claim 7 deforms infrared monitoring device, which is characterized in that on the barrel of the outer barrel Equipped with two perforation diametrically, it is connected separately with gag lever post on two drive rods, the gag lever post can be threaded through institute It states in perforation.
9. the wellbore aquation as described in claim 1 or 7 or 8 deforms infrared monitoring device, which is characterized in that the confining pressure load Part has two support rods being diametrically arranged on the outside of two confining pressure half modules, and one end of the support rod is rotationally It is connected on the confining pressure half module, the other end of the support rod is connected with pulley.
10. wellbore aquation as described in claim 1 deforms infrared monitoring device, which is characterized in that two confining pressure half modules Inside be respectively connected with confining pressure dottle pin, be folded with confining pressure heating coil between the confining pressure dottle pin and the confining pressure half module.
11. wellbore aquation as claimed in claim 10 deforms infrared monitoring device, which is characterized in that the confining pressure dottle pin is embedded Equipped with second pressure sensor.
12. wellbore aquation as described in claim 1 deforms infrared monitoring device, which is characterized in that the electrode is connected to institute State the lower end of axis pressure loaded member.
CN201920261832.7U 2019-03-01 2019-03-01 Wellbore aquation deforms infrared monitoring device Withdrawn - After Issue CN209654026U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109736778A (en) * 2019-03-01 2019-05-10 中国石油大学(北京) Wellbore aquation deforms infrared monitoring device and method
CN114236361A (en) * 2021-12-23 2022-03-25 中国矿业大学 Device and method for testing micro-current under rock load at high temperature

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109736778A (en) * 2019-03-01 2019-05-10 中国石油大学(北京) Wellbore aquation deforms infrared monitoring device and method
CN109736778B (en) * 2019-03-01 2023-11-21 中国石油大学(北京) Infrared monitoring device and method for hydration deformation of well bore
CN114236361A (en) * 2021-12-23 2022-03-25 中国矿业大学 Device and method for testing micro-current under rock load at high temperature
CN114236361B (en) * 2021-12-23 2024-05-03 中国矿业大学 Rock loaded micro-current testing device and method at high temperature

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