CN201025028Y - A strength tester for visual drilling well liquid sealing film - Google Patents
A strength tester for visual drilling well liquid sealing film Download PDFInfo
- Publication number
- CN201025028Y CN201025028Y CNU2007200207375U CN200720020737U CN201025028Y CN 201025028 Y CN201025028 Y CN 201025028Y CN U2007200207375 U CNU2007200207375 U CN U2007200207375U CN 200720020737 U CN200720020737 U CN 200720020737U CN 201025028 Y CN201025028 Y CN 201025028Y
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- China
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- visual
- drilling fluid
- strength tester
- jointing
- strength
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- Expired - Fee Related
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Abstract
The utility model discloses a closed diaphragm strength tester for visual drilling liquid, which is for the simulation test of the strength for the closed diaphragm formed by drilling liquid around the well wall and the depth that the filtrate of the drilling liquid enters into the stratum. The utility model consists of an upper connector, a sealing flange, a visual container and a lower connector, and is characterized in that: the visual container(3) is made of organic glass materials with high strength and is provided with scales; the upper and the lower ends of the visual container(3) are fixed respectively by a fixed frame(6). The utility model has convenient and simple operation, steady and reliable product performance, thus can be used extensively for experiments of testing the strength of the closed diaphragm of oil drilling liquid.
Description
Technical field
The utility model belongs to drilling fluid closing membrane strength tester in the oil drilling.
Background technology
Drilling fluid closing membrane strength test method mainly contains FA type filtration device method of testing, syringe method of testing, test tube method of testing and HTHP sand-bed filtration evaluation method in the oil drilling at present.Wherein FA type filtration device method of testing, can only be used to test the drilling fluid closing membrane intensity under room temperature, the 0.7MPa condition, syringe method of testing and test tube method of testing can only be used to test the drilling fluid closing membrane intensity under room temperature, the condition of normal pressure, and casting bed is too short; Though and HTHP sand-bed filtration evaluation method can be used for the drilling fluid closing membrane strength test under the high-temperature and high-pressure conditions, casting bed is too short, and can not observe the intrusion situation of drilling fluid.Therefore, in order to study the situation of change of closing membrane under different pressures under the overbalance state, be necessary to develop a kind of visual drilling fluid closing membrane strength tester.
The utility model content
The purpose of this utility model is for the simulation test drilling fluid forms the degree of depth that sealing film strength and drilling fluid filtrate enter the stratum on every side at the borehole wall, for oil drilling provides a kind of visual drilling fluid closing membrane strength tester.
The utility model is achieved in that a kind of visual drilling fluid closing membrane strength tester, comprise jointing, dish is tightly connected, visual container, following jointing, fixed support, it is characterized in that: visual container is made by the high strength pmma material, visual container has scale, fix the two ends up and down of visual container respectively by fixed support, the dish that is tightly connected is fixed with screw with visual container, and the internal thread of the middle part moulding of the last jointing and the dish that is tightly connected cooperatively interacts and is connected and fixed, and last jointing adopts bolt-type to be connected with source of the gas.
The utility model has the advantages that: visual container can adopt the sand grains of different-grain diameter sizes such as 0.9mm-0.45mm, 0.45mm-0.28mm, 0.28mm-0.18mm or landwaste filling formation casting bed simulation Different Strata to carry out the experiment of drilling fluid pressure-bearing respectively; can be observed closing membrane formation, whether lose the depth of invasion of validity and casting bed; can remove the closing membrane experiment; adjustable in pressure; reach as high as 3.0MPa; easy to operate simple; properties of product are reliable and stable, can be widely used in the test experiments of petroleum drilling fluid closing membrane intensity.
Description of drawings
A kind of drilling fluid closing membrane of Fig. 1 strength tester schematic diagram.
Concrete embodiment
Now the utility model will be further described in conjunction with Figure of description 1, as shown in Figure 1, with 300g particle diameter 0.9mm-0.45mm, clean the sand of oven dry and pour the withstand voltage glass container 3 of band scale into, pour the drilling fluid that 200ml prepares into after pier is real, tighten be tightly connected dish 2 and last jointing 1, be fixed on the support 6, the following placement graduated cylinder 5 of following jointing 4, the position that the following switch of jointing 4 is placed out, connect source of the gas pressure is transferred to 1MPa, pull up the latch of jointing 1, observe drilling fluid and invade situation,, progressively be forced into 1.5MPa if there is not leakage behind the 5min, 2.0MPa, 2.5MPa, 3.0MPa, and keep 5min respectively, if following jointing 4 has dehydration to spill, then write down the maximum pressure-bearing of this some pressure before for this drilling fluid system, if never having dehydration, following jointing 4 spills, then the maximum pressure-bearing of this drilling fluid system is 3.0MPa, and to write down last depth of invasion be depth of invasion under the maximum pressure-bearing.
Claims (3)
1. visual drilling fluid closing membrane strength tester, comprise jointing (1), dish (2) is tightly connected, visual container (3), following jointing (4), graduated cylinder (5), fixed support (6), it is characterized in that: visual container (3) is made by the high strength pmma material, and visual container (3) has scale, is fixed the two ends up and down of visual container (3) respectively by fixed support (6).
2. a kind of visual drilling fluid closing membrane strength tester according to claim 1, it is characterized in that: the dish (2) that is tightly connected is fixed with screw with visual container (3), the internal thread of the middle part moulding of the last jointing (1) and the dish (2) that is tightly connected cooperatively interacts and is connected and fixed, and last jointing (1) adopts bolt-type to be connected with source of the gas.
3. a kind of visual drilling fluid closing membrane strength tester according to claim 1, it is characterized in that: following jointing (4) has switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200207375U CN201025028Y (en) | 2007-04-16 | 2007-04-16 | A strength tester for visual drilling well liquid sealing film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200207375U CN201025028Y (en) | 2007-04-16 | 2007-04-16 | A strength tester for visual drilling well liquid sealing film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025028Y true CN201025028Y (en) | 2008-02-20 |
Family
ID=39098886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200207375U Expired - Fee Related CN201025028Y (en) | 2007-04-16 | 2007-04-16 | A strength tester for visual drilling well liquid sealing film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025028Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060742A (en) * | 2016-12-22 | 2017-08-18 | 安徽理工大学 | The high-strength borehole wall loading device of plane strain and experiment loading method |
| CN107965310A (en) * | 2018-01-11 | 2018-04-27 | 中国海洋石油集团有限公司 | A kind of mud filtrate invasion depth test device and test method |
-
2007
- 2007-04-16 CN CNU2007200207375U patent/CN201025028Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060742A (en) * | 2016-12-22 | 2017-08-18 | 安徽理工大学 | The high-strength borehole wall loading device of plane strain and experiment loading method |
| CN107060742B (en) * | 2016-12-22 | 2020-12-18 | 安徽理工大学 | Plane strain high-strength well wall loading device and test loading method |
| CN107965310A (en) * | 2018-01-11 | 2018-04-27 | 中国海洋石油集团有限公司 | A kind of mud filtrate invasion depth test device and test method |
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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: 20080220 Termination date: 20100416 |