CN204269507U - A kind of experimental provision for appraisal drilling liquid sedimentation stability - Google Patents
A kind of experimental provision for appraisal drilling liquid sedimentation stability Download PDFInfo
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- CN204269507U CN204269507U CN201420627005.2U CN201420627005U CN204269507U CN 204269507 U CN204269507 U CN 204269507U CN 201420627005 U CN201420627005 U CN 201420627005U CN 204269507 U CN204269507 U CN 204269507U
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Abstract
The utility model provides a kind of experimental provision for appraisal drilling liquid sedimentation stability, comprise cup, wherein, described cup inwall is vertically provided with draw-in groove, inserts baffle plate, arrange multiple parallel baffle in described baffle plate side in described draw-in groove, described dividing plate is while fit tightly with baffle plate, all the other limits are connected with cup inner wall sealing, thus are provided with the side of dividing plate at cup, and the space formed between at the bottom of baffle plate, cup inwall, cup is separated into multiple seal cavity by described dividing plate.Compared with prior art, can Obtaining Accurate different layers position drilling fluid, get rid of the error that human factor causes to greatest extent, thus each layer of position drilling fluid density distributed intelligence of energy Obtaining Accurate, for the sedimentation stability evaluating high density drilling fluid provides experimental data more accurately.
Description
Technical field
The utility model relates to a kind of experimental provision of the parametric measurement for oil drilling, is specifically related to a kind of experimental provision for appraisal drilling liquid sedimentation stability.
Background technology
In petroleum drilling engineering, along with the increase of depth of stratum, reservoir pressure coefficient is more and more higher, exist UHV (ultra-high voltage) gas-bearing formation, water layer probability also increasing.For equilibrium strata pressure, control the creep of salt deposit, saline bed, the Plastic Flow of opposing soft mudstone, ensures wellbore stability, needs the density improving constantly drilling fluid.At present, raising drilling fluid density normally adds weighting agent to realize.But if the dosage of weighting agent has exceeded certain limit, then can there is sedimentation in weighting agent, cause layer under gravity, instead of be dispersed in drilling fluid, thus make high density drilling fluid lose function.Therefore, before use weighting agent improves drilling fluid density, the ability of needs assessment drilling fluid suspension weighting agent, the i.e. sedimentation stability of drilling fluid.
At present, difference of densities method is one of method of appraisal drilling liquid sedimentation stability, the most frequently used method is become because it is easy and simple to handle, the method pours in container by the drilling fluid of certain volume and density, after leaving standstill a period of time, according to actual needs, pour out the drilling fluid of different layers position, weigh the density of the drilling fluid obtained in different layers position more respectively, carried out the sedimentation stability of appraisal drilling liquid by the density comparing different layers position drilling fluid.But, but the method needs container lean when obtaining different layers position drilling fluid, the disturbance that the process of toppling over causes can affect the distribution of weighting agent in the drilling fluid of different layers position unavoidably, the drilling fluid poured out also and non-fully intends getting the drilling fluid of more than layer position, thus the accuracy that impact measures.
Utility model content
The technical problems to be solved in the utility model is the above-mentioned defect overcoming known technology existence, and a kind of experimental provision for appraisal drilling liquid sedimentation stability is provided, can Obtaining Accurate different layers position drilling fluid, get rid of the error that human factor causes to greatest extent, ensure that measurement accuracy.
The utility model is achieved through the following technical solutions, according to a kind of experimental provision for appraisal drilling liquid sedimentation stability that the utility model provides, comprise cup, wherein, described cup inwall is vertically provided with draw-in groove, baffle plate is inserted in described draw-in groove, in described baffle plate side, multiple parallel baffle is set, described dividing plate is while fit tightly with baffle plate, all the other limits are connected with cup inner wall sealing, thus the side of dividing plate is provided with at cup, the space formed between at the bottom of baffle plate, cup inwall, cup is separated into multiple seal cavity by described dividing plate.Preferably, the volume of described seal cavity is equal.
The utility model can also take following technical scheme to realize further:
Aforesaid experimental provision, wherein, described dividing plate quantity is 2-5.
Preferably, aforesaid experimental provision, wherein, described dividing plate quantity is 3.
Preferably, aforesaid experimental provision, wherein, described cup outer wall is provided with a glass handle.
Further, aforesaid experimental provision, wherein, described dividing plate is horizontally disposed with.
Aforesaid experimental provision, wherein, described dividing plate is obliquely installed.Preferably, described dividing plate is horizontal by angle theta, and 0 ° of < θ≤15 °.
Compared with prior art, experimental provision for appraisal drilling liquid sedimentation stability of the present utility model can Obtaining Accurate different layers position drilling fluid, get rid of the error that human factor causes to greatest extent, thus each layer of position drilling fluid density distributed intelligence of energy Obtaining Accurate, for the sedimentation stability evaluating high density drilling fluid provides experimental data more accurately.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to structure of the present utility model, feature and effect thereof, be described in detail as follows:
As shown in Figure 1 and Figure 2, a kind of experimental provision for appraisal drilling liquid sedimentation stability that the utility model provides, comprise cup 1, it is characterized in that, described cup inwall is vertically provided with draw-in groove 2, baffle plate 3 is inserted in described draw-in groove, in described baffle plate side, multiple parallel baffle 4 is set, described dividing plate is while fit tightly with baffle plate, all the other limits are connected with cup inner wall sealing, thus the side of dividing plate is provided with at cup, the space formed between at the bottom of baffle plate, cup inwall, cup is separated into multiple seal cavity by described dividing plate.Preferably, the volume of described seal cavity is equal.
Present embodiment can realize further by structure below:
Aforesaid experimental provision, wherein, described dividing plate quantity is 2-5.Preferably, described dividing plate quantity is 3.
Preferably, aforesaid experimental provision, wherein, described cup outer wall is provided with cup 5.
Aforesaid experimental provision, wherein, described dividing plate 4 is horizontally disposed with.
Further, aforesaid experimental provision, wherein, described dividing plate 4 is obliquely installed.Preferably, described dividing plate is horizontal by angle theta, and 0 ° of < θ≤15 °.Dividing plate adopts and is obliquely installed is pouring in the settling process after mixing uneven drilling fluid to prevent, and the solid particle that drilling fluid Midst density is larger is deposited directly to because of the obstruction of horizontal baffle on dividing plate and does not continue to sink, and causes test result inaccurate.By dividing plate gradient certain angle, being deposited in greater density solid particle on dividing plate being deposited to after on dividing plate continues to sink down into resistant strata position along separator face, thus ensure that the solid particulate distributions of equal densities in drilling fluid is on same layer position, be conducive to the accuracy improving test.
In sum, compared with prior art, experimental provision for appraisal drilling liquid sedimentation stability of the present utility model can Obtaining Accurate different layers position drilling fluid, get rid of the error that human factor causes to greatest extent, thus each layer of position drilling fluid density distributed intelligence of energy Obtaining Accurate, for the sedimentation stability evaluating high density drilling fluid provides experimental data more accurately.
Below to arrange three pieces of dividing plates, test process is described:
As shown in Figure 1, in cup 1, be disposed with the first dividing plate 41, second partition 42 and the 3rd dividing plate 43 from bottom to top; During test, after drilling fluid to be measured is injected cup, leave standstill to the schedule time, baffle plate 3 is inserted in draw-in groove 2, pour out the drilling fluid in unsealing space in cup, and clean drilling fluid remaining in this space.Upwards lift baffle plate to the first dividing plate 41 place, pour out the drilling fluid in cup in unsealing space and measure its density; Remaining drilling fluid in cleaning cup; Then upwards lift baffle plate to the second baffle plate 42 place, pour out the drilling fluid in cup in unsealing space and measure its density; Finally extract baffle plate out, pour out the drilling fluid in cup in unsealing space and measure its density; Can Obtaining Accurate three layers of drilling fluid by above step, then can the density of each layer drilling fluid of Accurate Determining, eventually through the sedimentation stability of the density appraisal drilling liquid of more each layer drilling fluid.
It should be noted that, in the present embodiment, cup shape is cylindrical, but is not restricted to this, and cup also can adopt other shapes.
The above is only preferred embodiment of the present utility model, and every any simple modification of carrying out above embodiment according to the technical solution of the utility model and equivalents, all belong to the scope of the utility model protection.
Claims (8)
1. the experimental provision for appraisal drilling liquid sedimentation stability, comprise cup, it is characterized in that, described cup inwall is vertically provided with draw-in groove, inserts baffle plate, arrange multiple parallel baffle in described baffle plate side in described draw-in groove, described dividing plate is while fit tightly with baffle plate, all the other limits are connected with cup inner wall sealing, thus are provided with the side of dividing plate at cup, and the space formed between at the bottom of baffle plate, cup inwall, cup is separated into multiple seal cavity by described dividing plate.
2. experimental provision according to claim 1, is characterized in that, the volume of described seal cavity is equal.
3. experimental provision according to claim 1, is characterized in that, described dividing plate quantity is 2-5.
4. experimental provision according to claim 3, is characterized in that, described dividing plate quantity is 3.
5. experimental provision according to claim 3, is characterized in that, described cup outer wall is provided with a glass handle.
6. experimental provision as claimed in any of claims 1 to 5, is characterized in that, described dividing plate is horizontally disposed with.
7. experimental provision as claimed in any of claims 1 to 5, is characterized in that, described dividing plate is obliquely installed.
8. experimental provision according to claim 7, is characterized in that, described dividing plate is horizontal by angle theta, and 0 ° of < θ≤15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420627005.2U CN204269507U (en) | 2014-10-27 | 2014-10-27 | A kind of experimental provision for appraisal drilling liquid sedimentation stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420627005.2U CN204269507U (en) | 2014-10-27 | 2014-10-27 | A kind of experimental provision for appraisal drilling liquid sedimentation stability |
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| Publication Number | Publication Date |
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| CN204269507U true CN204269507U (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420627005.2U Active CN204269507U (en) | 2014-10-27 | 2014-10-27 | A kind of experimental provision for appraisal drilling liquid sedimentation stability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116067421A (en) * | 2022-11-18 | 2023-05-05 | 中国石油天然气集团有限公司 | Measuring device and measuring method for multi-point multifunctional detection of drilling fluid |
-
2014
- 2014-10-27 CN CN201420627005.2U patent/CN204269507U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116067421A (en) * | 2022-11-18 | 2023-05-05 | 中国石油天然气集团有限公司 | Measuring device and measuring method for multi-point multifunctional detection of drilling fluid |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |