CN203422285U - Rock core fissure forming and rock core fracture stress detecting device - Google Patents
Rock core fissure forming and rock core fracture stress detecting device Download PDFInfo
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- CN203422285U CN203422285U CN201320220380.0U CN201320220380U CN203422285U CN 203422285 U CN203422285 U CN 203422285U CN 201320220380 U CN201320220380 U CN 201320220380U CN 203422285 U CN203422285 U CN 203422285U
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Abstract
The utility model discloses a rock core fissure forming and rock core fracture stress detecting device which comprises a rock core holding device (11) and a rock core fissure forming cutter (9) arranged above the rock core holding device (11). The rock core fissure forming cutter (9) is connected with a hydraulic power system and a pressure collecting system; an image collecting system is arranged on one side of the rock core holding device (11); and the hydraulic power system, the pressure collecting system and the image collecting system are electrically connected with a main-control device (7) through a transmission and control circuit (8). The rock core fissure forming and rock core fracture stress detecting device has the features of higher automation as well as operating safety and stability, and has the characteristics of use security, high data collecting accuracy, wide application range and the like during use.
Description
Technical field
The utility model relates to a kind of stress detection device, relates in particular to a kind ofly for rock core, to make the stress detection device that seam breaks with rock core.
Background technology
In recent years, along with the work of the unconventional sandstone reservoir oil-gas exploration and development of Oil in Super-low Permeability is carried out, such reservoir is split an expansion displacement test and has been proposed challenge, comprehensive, mainly contain following some: first, such reservoir conventional core makes to test displacement pressure because permeability is low too high, has brought operational potential safety hazard; Secondly, such reservoir is because density is high, and rock core displacement test success ratio is very low; In addition, such reservoir is finally to exploit by measures such as acid fracturings in oil-field development.
Therefore, need to improve rock core, so that safe and effective, reasonably develop displacement test.Through groping, such reservoir core to be carried out after man made seam, its permeability substantially all increases more than 5 times, and the problem of carrying out exploitation displacement test is just readily solved, and the rock core evaluation experimental of simultaneously making after seam can this type of Reservoirs recovery process of simulate.
Through inquiring about domestic each laboratory, oil field at present, also do not have a set of rock core to make seam and rock core rupture stress pick-up unit or instrument.But similar instrument has a set of with it, it is the Pneumatic stone core splitter of Daqing oil field utility model, if this is rived, owner rives rock core along axial plane energetically by external force, its utility model object is that solution labour intensity when riving rock core is large, poor stability, the problems such as whether rock core splitting surface is straight, therefore can not realize rock core man made seam on this rives machine after, permeance property is improved case study, can not realize the break research of the aspects such as minimum stress and minimum stress face Structural Tectonics of rock core.
And rock core is made seam and rock core rupture stress pick-up unit is exactly in order to protect to greatest extent rock core simultaneously; after realizing rock core man made seam, permeance property is improved; minimum stress when recording rock core and breaking, and research is along the Structural Tectonics of minimum stress fracture plane that face produces.
Summary of the invention
The purpose of this utility model is to provide in a kind of oil reservoir experiment and completes the device that rock core is made seam and the detection of rock core rupture stress, specifically rock core is carried out to man made seam to improve rock core permeance property, thereby realize, carry out the unconventional sandstone reservoir exploitation of Oil in Super-low Permeability displacement test.
For achieving the above object, a kind of rock core of the present utility model is made seam and with the concrete technical scheme of rock core rupture stress pick-up unit is:
A kind of rock core is made seam and rock core rupture stress pick-up unit, the rock core that comprises core clamping device and be arranged on core clamping device top is made seam cutter, rock core is made seam cutter and is connected with pressure acquisition system with hydraulic power system, one side of core clamping device is provided with image capturing system, and hydraulic power system, pressure acquisition system and image capturing system are electrically connected by transmission and operation circuit and master control set.
Further, hydraulic power system comprises hydraulic oil pump and fluid drive, and hydraulic oil pump is communicated with fluid drive fluid, and fluid drive connects rock core and makes seam cutter, and master control set is electrically connected by transmission and operation circuit and hydraulic oil pump.
Further, pressure acquisition system comprises fluid drive and the first pressure unit being connected with fluid drive, and the first pressure unit is electrically connected by transmission and operation circuit and master control set.
Further, pressure acquisition system comprises high-speed camera, and high-speed camera is arranged on a side of core clamping device, and high-speed camera is electrically connected by transmission and operation circuit and master control set.
Further, also comprise safety control system, safety control system is electrically connected by transmission and operation circuit and master control set.
Further, safety control system comprises tensimeter, the second pressure unit and the safety relief valve of electric connection, and tensimeter is electrically connected by transmission and operation circuit and master control set, and safety relief valve is arranged on the hydraulic fluid transfer pipeline in device.
Further, also comprise the operator's console that core clamping device, rock core are made seam cutter, pressure power system, pressure acquisition system, image capturing system and safety control system is installed.
Compared to existing technology, rock core of the present utility model is made to stitch with rock core rupture stress pick-up unit and is had following advantage:
1, success ratio is high.This instrument meets oil field rock core and makes seam requirement, and by 100 tests repeatedly above, rock core is made and is seamed into power more than 95%;
2, this rock core man made seam and rock core rupture stress pick-up unit, pressure changing when analog record formation rock breaks well;
3, this device handling safety, has safe pressure protection system, whole-course automation monitoring.
Accompanying drawing explanation
Fig. 1 is the structural representation that rock core of the present utility model is made seam and rock core rupture stress pick-up unit.
Embodiment
In order better to understand the purpose of this utility model, structure and function, below in conjunction with accompanying drawing, a kind of rock core of the present utility model is made to seam and do further detailed description with rock core rupture stress pick-up unit.
As shown in Figure 1, rock core of the present utility model is made the rock core that seam comprises core clamping device 11 with rock core rupture stress pick-up unit and be arranged on core clamping device 11 tops and is made seam cutter 9, wherein, core clamping device 11 is for fixedly making seam rock core, make it with make seam blade accurately aim at, rock core is made seam cutter 9 by stress fracture rock core, is late detection creative condition.
In addition, rock core of the present utility model is made seam and rock core rupture stress pick-up unit also includes master control set 7 and passes through transmission and hydraulic power system, pressure acquisition system, image capturing system, the safety control system of operation circuit 8 with master control set 7 electric connections.Rock core of the present utility model make seam with rock core rupture stress pick-up unit under the control of master control set 7, by hydraulic power system, pressure acquisition system, image capturing system, safety control system and rock core, make the cooperation of stitching cutter 9 and realized making seam, breaking and stress detects of rock core.
Further, rock core in the utility model is made seam cutter 9 and is provided and made seam stress by hydraulic power system, referring to Fig. 1, hydraulic power system in the utility model comprises hydraulic oil pump 1 and fluid drive 6, wherein, hydraulic oil pump 1 is communicated with fluid drive 6 fluids, and master control set 7 is electrically connected by transmission and operation circuit 8 and hydraulic oil pump 1, and fluid drive 6 connects rock core and makes seam cutter 9.During actual motion, under the control of master control set 7, hydraulic oil pump 1 drives hydraulic fluid to fluid drive 6, and by fluid drive 6, for rock core, making seam cutter 9 provides and make seam stress.
Further, rock core of the present utility model is made in seam and rock core rupture stress pick-up unit also has pressure acquisition system, referring to Fig. 1, pressure acquisition system in the utility model comprises fluid drive 6 and the first pressure unit 5 being connected with fluid drive 6, wherein, fluid drive 6, for transmitting real-time pressure numerical value, is convenient to the collection of pressure data, the first 5 of pressure units are converted to electric signal for the pressure signal that fluid drive 6 is transmitted, and complete the collection of pressure data.In addition, the first pressure unit 5 in the utility model is electrically connected by transmission and operation circuit 8 and master control set 7, for the signal collecting is sent to master control set 7.
Further, rock core of the present utility model is made in seam and rock core rupture stress pick-up unit also has image capturing system, referring to Fig. 1, pressure acquisition system in the utility model comprises high-speed camera 10, high-speed camera 10 is arranged on a side of core clamping device 11, for whole rock core being made to seam process, carry out taking and following the tracks of in real time, to partly provide Data support for analyzing rock core stress fracture.Wherein, high-speed camera 10 is also electrically connected by transmission and operation circuit 8 and master control set 7, for the data that photograph are sent to master control set 7.
In addition, rock core of the present utility model is made in seam and rock core rupture stress pick-up unit also can be provided with safety control system, referring to Fig. 1, safety control system in the utility model comprises the tensimeter 2 being electrically connected to each other, the second pressure unit 3 and safety relief valve 4, wherein, tensimeter 2 is electrically connected by transmission and operation circuit 8 and master control set 7, for system pressure, proofread and correct with safe pressure and set, safety relief valve 4 is arranged on the hydraulic fluid transfer pipeline in device, be specially on the hydraulic fluid transfer pipeline between hydraulic oil pump 1 and fluid drive 6, can be when system internal pressure surpasses safe pressure, flow process pressure release, protection equipment and personnel's handling safety.
Below in conjunction with Fig. 1, rock core of the present utility model is made to seam and describes with the operation steps of rock core rupture stress pick-up unit:
1) hydraulic power system drives rock core to make seam
Hydraulic oil pump 1(servo oil pump) drive hydraulic fluid to fluid drive 6, under hydraulic action, rock core is made seam cutter 9 and slowly to rock core, is moved, and rock core is made at rock core under the effect of stress of seam cutter 9 and completed and make seam.
It should be noted, at rock core of the present utility model, make in seam process, the pressure that rock core is made seam cutter 9 slowly increased before this, when rock core arrives critical fracture point, pressure there will be bust flex point, master control set 7 is identified this breakthrough point automatically, closes down hydraulic oil pump 1, thereby finishes the operation of device.
2) data acquisition of pressure and image
Carrying out when rock core makes seam, real-time sending pressure signal to the first pressure unit 5, the first pressure units 5 of fluid drive 6 are converted to electric signal by pressure signal, and are sent to master control set 7, complete the collection of pressure.
Meanwhile, the 10 pairs of rock cores of high-speed camera that are arranged on core clamping device 11 1 sides are made seam process and are carried out whole process and take, and are sent to master control set 7 by transmission and operation circuit 8, for analyzing rock core stress fracture position, provide Data support.
3) security control of device
When system internal pressure surpasses default safe pressure, master control set 7 sends pressure release instruction, and safety relief valve 4 just can gush the displacing fluid hydraulic fluid in pipeline, thereby guarantees that pressure is no more than the safe pressure that system is born.
In addition, installation and use for convenience of device, rock core of the present utility model is made in seam and rock core rupture stress pick-up unit also can be provided with instrumentation platform 12, the usage platform that instrumentation platform 12 is this device, be mainly used in making the installation of seam device and checkout equipment, as core clamping device 11, rock core are made seam cutter 9, pressure power system, pressure acquisition system, image capturing system and safety control system.
Thereby it is mainly to apply external force at rock core end face rock core is broken along stress minimal face with rock core rupture stress pick-up unit that rock core of the present utility model is made seam, and the seam that breaks connects this rock core; Its purport is by minimum external force, rock core to be broken, and produces crack, increases rock core permeance property, the seam face that produces without straight.When stress fracture is made seam, by high-speed camera, to making seam process, carry out taking and following the tracks of in real time, and make rock core parting pressure situation of change in seam process by pressure acquisition system monitoring record.
By specific embodiment, the utility model is further described above; but it should be understood that; here concrete description; should not be construed as the restriction to essence of the present utility model and scope; one of ordinary skilled in the art, reading the various modifications of after this instructions, above-described embodiment being made, belongs to the scope that the utility model is protected.
Claims (7)
1. a rock core is made seam and rock core rupture stress pick-up unit, it is characterized in that, the rock core that comprises core clamping device (11) and be arranged on core clamping device (11) top is made seam cutter (9), rock core is made seam cutter (9) and is connected with pressure acquisition system with hydraulic power system, one side of core clamping device (11) is provided with image capturing system, and hydraulic power system, pressure acquisition system and image capturing system are electrically connected by transmission and operation circuit (8) and master control set (7).
2. rock core according to claim 1 is made seam and rock core rupture stress pick-up unit, it is characterized in that, hydraulic power system comprises hydraulic oil pump (1) and fluid drive (6), hydraulic oil pump (1) is communicated with fluid drive (6) fluid, fluid drive (6) connects rock core and makes seam cutter (9), and master control set (7) is electrically connected by transmission and operation circuit (8) and hydraulic oil pump (1).
3. rock core according to claim 2 is made seam and rock core rupture stress pick-up unit, it is characterized in that, pressure acquisition system comprises fluid drive (6) and the first pressure unit (5) being connected with fluid drive (6), and the first pressure unit (5) is electrically connected by transmission and operation circuit (8) and master control set (7).
4. rock core according to claim 3 is made seam and rock core rupture stress pick-up unit, it is characterized in that, pressure acquisition system comprises high-speed camera (10), high-speed camera (10) is arranged on a side of core clamping device (11), and high-speed camera (10) is electrically connected by transmission and operation circuit (8) and master control set (7).
5. according to the rock core described in claim 1 or 4, make seam and rock core rupture stress pick-up unit, it is characterized in that, also comprise safety control system, safety control system is electrically connected by transmission and operation circuit (8) and master control set (7).
6. rock core according to claim 5 is made seam and rock core rupture stress pick-up unit, it is characterized in that, safety control system comprises tensimeter (2), the second pressure unit (3) and the safety relief valve (4) of electric connection, tensimeter (2) is electrically connected by transmission and operation circuit (8) and master control set (7), and safety relief valve (4) is arranged on the hydraulic fluid transfer pipeline in device.
7. rock core according to claim 5 is made seam and rock core rupture stress pick-up unit, it is characterized in that, also comprise the operator's console (12) that core clamping device (11), rock core are made seam cutter (9), pressure power system, pressure acquisition system, image capturing system and safety control system is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320220380.0U CN203422285U (en) | 2013-04-26 | 2013-04-26 | Rock core fissure forming and rock core fracture stress detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320220380.0U CN203422285U (en) | 2013-04-26 | 2013-04-26 | Rock core fissure forming and rock core fracture stress detecting device |
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| Publication Number | Publication Date |
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| CN203422285U true CN203422285U (en) | 2014-02-05 |
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|---|---|---|---|
| CN201320220380.0U Withdrawn - After Issue CN203422285U (en) | 2013-04-26 | 2013-04-26 | Rock core fissure forming and rock core fracture stress detecting device |
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| CN (1) | CN203422285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196752A (en) * | 2013-04-26 | 2013-07-10 | 中国石油化工股份有限公司 | Core gap and core rupture stress detection device |
-
2013
- 2013-04-26 CN CN201320220380.0U patent/CN203422285U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196752A (en) * | 2013-04-26 | 2013-07-10 | 中国石油化工股份有限公司 | Core gap and core rupture stress detection device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140205 Effective date of abandoning: 20150624 |
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| RGAV | Abandon patent right to avoid regrant |