CN201301709Y - Arbitrary cross-section testing device of drill cores - Google Patents
Arbitrary cross-section testing device of drill cores Download PDFInfo
- Publication number
- CN201301709Y CN201301709Y CNU2008202258874U CN200820225887U CN201301709Y CN 201301709 Y CN201301709 Y CN 201301709Y CN U2008202258874 U CNU2008202258874 U CN U2008202258874U CN 200820225887 U CN200820225887 U CN 200820225887U CN 201301709 Y CN201301709 Y CN 201301709Y
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- CN
- China
- Prior art keywords
- core
- gum cover
- carriage release
- drill core
- release lever
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an arbitrary cross-section testing device of drill cores, which comprises adjusting screw bolts, screw bolt supports, a drill core moving rod, a body, press caps, a gum cover, gum cover plugs, a pressure measuring port, a liquid inlet, a sealing ring and a pressure sensor interface. The testing device is characterized in that the body is in a cylinder shape, the press caps which are connected through threads are arranged on both ends of the body, a columnar drill core moving rod with a liquid inlet and a liquid outlet is respectively arranged on the centers of the pressing caps of both ends in a vertical and inward mode, the gum cover with the pressure measuring port is arranged on the drill core moving rod, the gum cover plugs are pressed between both ends of the gum cover and the pressing caps of both ends of the body, and a drill core is arranged between the two drill core moving rods, the L-shaped screw bolt supports are clamped on the external ends of the two pressing ends of both ends of the body, the adjusting screw bolts are arranged on the centers of the screw bolt supports, the tail ends of the screw bolts prop up the drill core moving rods, and the liquid outlet and the pressure sensor interface are arranged on the circumferential surface of the body.
Description
One, technical field
The utility model relates to a kind of arbitrary section of drill core testing arrangement to the coring of oil drilling institute.
Two, background technology
To oil drilling institute coring test analysis is that betray oil-break layer depth, reservoir permeability, oil reservoir saturation ratio, oil reservoir reserves has unprofitable key measure and means, present testing arrangement can only be tested the permeability and the oil saturation of whole section core, can't test the permeability of each section of core and oil saturation and axially on distribution situation.If the two ends of core or a certain section axial vane surface have mud to stop up, often just there is illusion in measured data, can be to the oil well reserves, the judgement that permeability and oil saturation work make mistake, oilfield development program is guided into mistaken ideas, cause great economic loss for the oil field development ﹠ construction in addition the oil field that has most exploitation to be worth to squeezing into the death jail.Simultaneously also can to the sandstone oil reservoir of oil reservoir densification or the limestone oil reservoir carries out the acidification degree of depth and processing scheme provides reliable foundation.
Three, summary of the invention
The purpose of this utility model provides a kind of arbitrary section of drill core testing arrangement, solves the above-mentioned limitation that the core testing arrangement is existed, and the problem that the death jail is squeezed in the oil field is easily held in the analysis that easily makes the mistake.
The technical solution of the utility model realizes in the following manner:
The utility model is by by adjusting screw(rod), the screw rod frame, the core carriage release lever, body, pressure cap, gum cover, the gum cover plug, pressure tap, inlet, sealing ring and pressure sensor interface are formed, it is characterized in that body is made as cylindrical shape, be provided with the pressure cap that is threaded at the two ends of body, central vertical at the two ends pressure cap inwardly is provided with a cylindrical core carriage release lever of bringing liquid outlet into separately, be with the gum cover of band pressure tap on the core carriage release lever, between gum cover both ends and body two ends pressure cap, be pressed with the packing element plug, between two core carriage release levers, be provided with core; Card has L shaped screw rod frame in the pressure cap outer end at body two ends, is provided with adjusting screw(rod) at screw rod frame center, and the end of screw rod withstands on the core carriage release lever; All sides at body are provided with liquid outlet and pressure sensor interface.
Plug top in the arbitrary section of drill core testing arrangement is made as cylindrical, and periphery is provided with sealing ring, and the bottom is made as conical head, and the center is provided with centre bore.
Core carriage release lever in the arbitrary section of drill core testing arrangement is made as cylindrical, the upper end is provided with a hole enlargement annular convex ring, the core carriage release lever of left end inwardly vertically is provided with an inlet from the bulge loop periphery, the inlet opening set with the center is communicated with, the core carriage release lever of right-hand member is from the upside of bulge loop periphery and downside inwardly is provided with a liquid outlet and a pressure sensor joint is communicated with the lower surface, and the bulge loop lower, outer perimeter is carved with digital calibration separately.
Body both ends in the arbitrary section of drill core testing arrangement are provided with male thread, are threaded with pressure cap, and body periphery top and the bottom are provided with a pressure sensor joint and a liquid outlet respectively.
The utility model has the advantages that does not need segmentation to clip core, do not need to take out core, can not pollute and damage, and can measure core section permeability value, thereby reflect that more accurately drill core permeability rate is in axial distribution situation apart from core end face different distance to core.For oil field development provides reliable analysis data, accurately make oilfield development program.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the utility model effect analysis figure
1-adjusting screw(rod) 2-adjusting nut 3-screw rod frame 4-liquid outlet 5-pressure sensor joint among the figure
6-pressure-measuring head 7-gum cover 8-core carriage release lever 9-cylindrical shell 10-sealing ring 11-pressure cap
12-gum cover plug 13-inlet
Five, the specific embodiment
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description: the utility model is by adjusting screw(rod) 1, screw rod frame 3, core carriage release lever 8, body 9, pressure cap 11, gum cover 7, gum cover plug 12, pressure-measuring head 6, sealing ring 10, inlet 13 and pressure sensor joint are formed, the arbitrary section of drill core testing arrangement is realized, its method is for to put core in the well gum cover 7, the stifled gum cover plug 12 of going up in the two ends of gum cover, pack into body 9, pressure cap 11 is screwed in the two ends of body 9, inject two core carriage release levers 8 from pressure cap center, two ends, withstand on up to two ends with core, move core with the core carriage release lever, adjust the scale on the core carriage release lever, make the centre bore of the tail end aligning pressure-measuring head 6 of certain the section post that will survey core, then screw rod frame 3 is stuck in the groove of two ends pressure cap, rotary screw rimrock core, carriage release lever is located core; Throw water into from inlet 13, measure the permeability of pressure-measuring head 6 corresponding section parts, calculate permeability according to Darcy formula apart from the core end face; The saturating rate of arbitrary section of drill core can be measured in the pressure-measuring head location of mobile core; If surveying the permeability of whole section core can block pressure-measuring head and test.
Carry out acidifying so that core is injected 5 times of voids volume HCI hydrochloric acid, the Permeability Distribution figure of the different parts of surveying illustrates effect of the present utility model after the acidifying:
As shown in Figure 2, for whole core, drill core permeability rate is on a declining curve after injecting HCI, but show that by survey of the present utility model method is to core different parts permeability test result drill core permeability rate, monoblock core permeability variation is in the axial direction distinguished to some extent, from the core arrival end nearer first, two sections core section permeabilities permeability after annotating acid rises to some extent, and the 3rd, four sections drill core permeability rate infringements are maximum, thereby fully reflected and annotated the influence degree of sour process, for the selection of acid solution and acidifying design provide active data to the different parts core.
Claims (4)
1, a kind of arbitrary section of drill core testing arrangement, by adjusting screw(rod), the screw rod frame, the core carriage release lever, body, pressure cap, gum cover, the gum cover plug, pressure tap, inlet, sealing ring and pressure sensor interface are formed, it is characterized in that body is made as cylindrical shape, be provided with the pressure cap that is threaded at the two ends of body, central vertical at the two ends pressure cap inwardly is provided with a cylindrical core carriage release lever of bringing liquid outlet into separately, be with the gum cover of band pressure tap on the core carriage release lever, between gum cover both ends and body two ends pressure cap, be pressed with the packing element plug, between two core carriage release levers, be provided with core; Card has L shaped screw rod frame in the pressure cap outer end at body two ends, is provided with adjusting screw(rod) at screw rod frame center, and the end of screw rod withstands on the core carriage release lever; All sides at body are provided with liquid outlet and pressure sensor interface.
2, arbitrary section of drill core testing arrangement according to claim 1, it is cylindrical to it is characterized in that plug top in the arbitrary section of drill core testing arrangement is made as, and periphery is provided with sealing ring, and the bottom is made as conical head, and the center is provided with centre bore.
3, arbitrary section of drill core testing arrangement according to claim 1, it is characterized in that the core carriage release lever in the arbitrary section of drill core testing arrangement is made as cylindrical, the upper end is provided with a hole enlargement annular convex ring, the core carriage release lever of left end inwardly vertically is provided with an inlet from the bulge loop periphery, the inlet opening set with the center is communicated with, the core carriage release lever of right-hand member is from the upside of bulge loop periphery and downside inwardly is provided with a liquid outlet and a pressure sensor joint is communicated with the lower surface, and the bulge loop lower, outer perimeter is carved with digital calibration separately.
4, arbitrary section of drill core testing arrangement according to claim 1, it is characterized in that the body both ends in the arbitrary section of drill core testing arrangement are provided with male thread, be threaded with pressure cap, body periphery top and the bottom are provided with a pressure sensor joint and a liquid outlet respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202258874U CN201301709Y (en) | 2008-11-13 | 2008-11-13 | Arbitrary cross-section testing device of drill cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202258874U CN201301709Y (en) | 2008-11-13 | 2008-11-13 | Arbitrary cross-section testing device of drill cores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201301709Y true CN201301709Y (en) | 2009-09-02 |
Family
ID=41085333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202258874U Expired - Fee Related CN201301709Y (en) | 2008-11-13 | 2008-11-13 | Arbitrary cross-section testing device of drill cores |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201301709Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207450A (en) * | 2011-03-17 | 2011-10-05 | 荆州市华孚信息技术有限公司 | Non-cylindrical rock core surface acquisition apparatus |
-
2008
- 2008-11-13 CN CNU2008202258874U patent/CN201301709Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207450A (en) * | 2011-03-17 | 2011-10-05 | 荆州市华孚信息技术有限公司 | Non-cylindrical rock core surface acquisition apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20091214 |