CN203688415U - Gradient core holding unit with pressure guide ring - Google Patents
Gradient core holding unit with pressure guide ring Download PDFInfo
- Publication number
- CN203688415U CN203688415U CN201420003731.7U CN201420003731U CN203688415U CN 203688415 U CN203688415 U CN 203688415U CN 201420003731 U CN201420003731 U CN 201420003731U CN 203688415 U CN203688415 U CN 203688415U
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- CN
- China
- Prior art keywords
- pressure guide
- pilot
- holding unit
- guide ring
- ring
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- Expired - Fee Related
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Abstract
The utility model discloses a gradient core holding unit with a pressure guide ring. The gradient core holding unit comprises an end cover, a rubber barrel plug head, a stopping plug head, a main body, a rubber barrel, an adjusting plug head, a movable stop wing, an adjusting hand wheel, a cylindrical gasket and a core, and is characterized in that the open pressure guide ring is arranged at the inner circumference of the middle-upper part of the rubber barrel; a pressure guide groove is formed in the middle part of the inner circumference of the open pressure guide ring; a pressure guide tube communicated with the pressure guide groove is arranged at the middle part of the pressure guide groove; the pressure guide ring is opposite to the opening of the open pressure guide ring; the pressure guide tube penetrates through the rubber barrel and is connected with the main body and a pressure detector. The gradient core holding unit disclosed by the utility model has the following advantages that the limitations of measuring the section permeability of the core by a pressure guide hole in the prior art are overcome, the gradient permeability of the core can be measured by adjusting the stopping plug head and the adjusting plug head, the accuracy is high, and accurate permeability data can be provided for oilfield development.
Description
Technical field
The utility model relates to a kind of oil geology laboratory experiment technical field, for clamping and sealing rock core, and can be on the basis of non-divided rock core the clamping device of sectionalization test core permeability, be a kind of gradient core holding unit with pilot ring specifically.
Background technology
The rock core resource that oil field laboratory experiment needs is very in short supply, sometimes need the permeability variation of knowing that a rock core is gone up along its length, if rock core cutting is measured again, no doubt can record the permeability of each section, but rock core is but caused to irreversible destruction, in order to address this problem, there is gradient core holding unit both at home and abroad, on rock core packing element, be provided with along its length some tracting pressuring holes, the general 1-3mm in aperture, by this hole, pressure is drawn and measured, and this pressure is equal to this tracting pressuring hole place core section pressure, utilize certain section of rock core pressure at two ends difference can calculate the permeability of this section of rock core.But because most of rock core is a kind of consolidated of densification, only just replace the not science of pressure in whole cross section with this slight pressure that tracting pressuring hole was reflected, the data that draw are even likely wrong.
Summary of the invention
The purpose of this utility model is to provide a kind of gradient core holding unit with pilot ring.Overcome the defect that above-mentioned prior art exists.
The technical solution of the utility model is achieved in the following ways:
The utility model comprises end cap, packing element plug, stop plug, main body, packing element, adjusting plug, active catch wing, control hand wheel, cylinder pad and rock core composition, it is characterized in that being provided with in week an opening pilot ring in packing element middle and upper part, middle part of interior week at opening pilot ring is provided with a pilot groove, be provided with a connecting pipe being communicated with pilot groove at the middle part of pilot groove, connecting pipe is relative with the opening of opening pilot ring, and connecting pipe is connected with manograph with main body through packing element.
Pilot split ring is made of stainless steel material, and the opening of pilot split ring is made as 2-5mm.
The utility model has the advantages that and overcome the limitation by Dao Ya Kong Measuring coring section permeability that prior art exists, by the gradient penetration rate of adjustable brake plug and adjusting plug Ke Measuring coring, and accuracy rate is high, permeability data accurately can be provided to oil-field development.
Brief description of the drawings
Fig. 1-structural representation of the present utility model;
Fig. 2-opening pilot ring schematic diagram;
The sectional view of Fig. 3-Fig. 2;
In figure, 1-end cap 2-packing element plug 3-stop plug 4-main body 5-packing element 6-regulates plug 7-active catch wing 8-control hand wheel 9-cylinder pad 10-pressure source joint 11-rock core 12-connecting pipe 13-opening pilot ring 14-pilot groove.
Embodiment
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:
The utility model comprises end cap 1, packing element plug 2, stop plug 3, main body 4, packing element 5, regulates plug 6, active catch wing 7, control hand wheel 8, cylinder pad 9 and rock core 11 to form, it is characterized in that being provided with in week an opening pilot ring 13 in packing element middle and upper part, middle part of interior week at opening pilot ring is provided with a pilot groove 14, be provided with a connecting pipe 12 being communicated with pilot groove at the middle part of pilot groove, connecting pipe is relative with the opening of opening pilot ring 13, and (Fig. 2 is with shown in Fig. 3) connecting pipe is connected with manograph with main body 4 through packing element 5.
Concrete using method is as follows: the utility model is assembled as shown in Figure 1, and two end cap 1 utilizes screw thread to be tightened in clamp body 4.The operation handwheel 8 of hand-held stop plug 3, inserts stop plug 3 in end cap 1, and the direction of stop plug 3 makes boss aim at end cap 1 groove and continuation is placed in stop plug 3 in the groove of end cap 1, the 90o that turns clockwise, and stop plug 3 is in place.Pack rock core 11 into from main body 4 other ends, pack into and regulate plug 6 and located by active catch wing 7 according to the method that packs stop plug 3 into subsequently, turn clockwise control hand wheel until regulate cylinder pad 9 to hold out against rock core 11, in order to measure the stability of permeability, opening pilot ring 13 is fixed on packing element, cannot be shifted, be the length and the needs that regulate plug 6 with the each section permeability of Man Zu Measuring coring by regulating cylinder pad 9.Que has been Dinged the position of Measuring coring section permeability, inject isobaric test fluid from braking plug and adjusting plug, test fluid enters measuring cell through pilot groove 14 and connecting pipe 12, draws the pressure reduction of test fluid, draws the permeability of section by calculating the formula of permeability.The utility model has the advantages that and overcome the limitation by Dao Ya Kong Measuring coring section permeability that prior art exists, by the gradient penetration rate of adjustable brake plug and adjusting plug Ke Measuring coring, and accuracy rate is high, permeability data accurately can be provided to oil-field development.
Claims (2)
1. the gradient core holding unit with pilot ring, comprise end cap, packing element plug, stop plug, main body, packing element, adjusting plug, active catch wing, control hand wheel, cylinder pad and rock core composition, it is characterized in that being provided with in week an opening pilot ring in packing element middle and upper part, middle part of interior week at opening pilot ring is provided with a pilot groove, be provided with a connecting pipe being communicated with pilot groove at the middle part of pilot groove, connecting pipe is relative with the opening of opening pilot ring, and connecting pipe is connected with manograph with main body through packing element.
2. the gradient core holding unit with pilot ring according to claim 1, is characterized in that: pilot split ring stainless steel material is made, and the opening of pilot split ring is made as 2-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003731.7U CN203688415U (en) | 2014-01-03 | 2014-01-03 | Gradient core holding unit with pressure guide ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003731.7U CN203688415U (en) | 2014-01-03 | 2014-01-03 | Gradient core holding unit with pressure guide ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203688415U true CN203688415U (en) | 2014-07-02 |
Family
ID=51010302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420003731.7U Expired - Fee Related CN203688415U (en) | 2014-01-03 | 2014-01-03 | Gradient core holding unit with pressure guide ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203688415U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568703A (en) * | 2015-01-29 | 2015-04-29 | 南通市中京机械有限公司 | Covering hole penetration holder |
| CN105842425A (en) * | 2016-05-23 | 2016-08-10 | 青岛中瑞泰软控技术有限公司 | Core holding unit and dynamic filtrate loss test unit |
| CN110823779A (en) * | 2019-11-19 | 2020-02-21 | 西南石油大学 | Rock core holder and combination formula rock core centre gripping model |
-
2014
- 2014-01-03 CN CN201420003731.7U patent/CN203688415U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568703A (en) * | 2015-01-29 | 2015-04-29 | 南通市中京机械有限公司 | Covering hole penetration holder |
| CN105842425A (en) * | 2016-05-23 | 2016-08-10 | 青岛中瑞泰软控技术有限公司 | Core holding unit and dynamic filtrate loss test unit |
| CN105842425B (en) * | 2016-05-23 | 2017-12-01 | 青岛中瑞泰软控科技股份有限公司 | A kind of core holding unit and dynamic filtration experimental provision |
| CN110823779A (en) * | 2019-11-19 | 2020-02-21 | 西南石油大学 | Rock core holder and combination formula rock core centre gripping model |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20150103 |
|
| EXPY | Termination of patent right or utility model |