CN113252671A - Method for measuring water content of oil-based drilling fluid - Google Patents
Method for measuring water content of oil-based drilling fluid Download PDFInfo
- Publication number
- CN113252671A CN113252671A CN202110524038.9A CN202110524038A CN113252671A CN 113252671 A CN113252671 A CN 113252671A CN 202110524038 A CN202110524038 A CN 202110524038A CN 113252671 A CN113252671 A CN 113252671A
- Authority
- CN
- China
- Prior art keywords
- drilling fluid
- oil
- water content
- sampling
- based drilling
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 99
- 239000012530 fluid Substances 0.000 title claims abstract description 98
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005070 sampling Methods 0.000 claims abstract description 81
- 238000012360 testing method Methods 0.000 claims abstract description 9
- 238000001000 micrograph Methods 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 3
- 238000005259 measurement Methods 0.000 claims description 15
- 238000004364 calculation method Methods 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims 1
- 239000003995 emulsifying agent Substances 0.000 claims 1
- 230000001804 emulsifying effect Effects 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 3
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002337 anti-port Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8411—Application to online plant, process monitoring
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
本发明提供一种油基钻井液含水率测量方法，包括步骤1.利用实验室内的原料、标准容器及乳化机，配置含水率不同的油基钻井液并将其作为试验样品液。步骤2.将配置好的样品油基钻井液搅拌均匀后倒入泥浆槽，让钻井液在泥浆槽中流动，用取样盒对油基泥浆进行取样。步骤3.对于取样完成后的取样盒，将其置于高倍显微镜载物台，对取样盒里的泥浆样品进行显微拍照，并将照片传送至计算机内进行图像识别。本方法受温度、压力等因素的影响较小，在很短的延时后即可测得井底返出的油基钻井液的含水率，保证钻井的密度等参数保持在最优条件下，有利于油气开采的安全与效率。
The present invention provides a method for measuring the water content of oil-based drilling fluid, including step 1. Using raw materials, standard containers and emulsifying machines in a laboratory, oil-based drilling fluids with different water content are prepared and used as test sample fluids. Step 2. Stir the prepared sample oil-based drilling fluid evenly and pour it into the mud tank, let the drilling fluid flow in the mud tank, and use the sampling box to sample the oil-based mud. Step 3. For the sampling box after sampling, place it on the high-power microscope stage, take a microphotograph of the mud sample in the sampling box, and transmit the photo to the computer for image recognition. This method is less affected by factors such as temperature and pressure. After a short delay, the water content of the oil-based drilling fluid returned from the bottom of the well can be measured, so as to ensure that parameters such as drilling density are kept under optimal conditions. Conducive to the safety and efficiency of oil and gas extraction.
Description
Technical Field
The invention relates to the field of fluid water content measurement, in particular to a method for measuring the water content of oil-based drilling fluid.
Background
The oil-based drilling fluid has the advantages of high temperature resistance, salt and calcium corrosion resistance, contribution to well wall stability, good lubricity, small damage degree to oil-gas layers and the like, is an important means for drilling high-temperature deep wells, large-inclination directional wells, horizontal wells and various complex strata with high difficulty at present, and can be widely used as stuck freeing fluid, perforation completion fluid, workover fluid, coring fluid and the like. In the development of oil exploitation, geological conditions are more and more complex and exploitation difficulty is more and more high. Oil-based drilling fluids are also increasingly used in geologic complex production environments. When the oil-based drilling fluid is configured, a certain proportion of water is often contained, but after the drilling fluid enters the ground bottom, formation water is possibly mixed into the oil-based drilling fluid, and the pressure, the density and other properties of the oil-based drilling fluid can be changed due to excessive water mixing, so that the drilling efficiency and the drilling safety are influenced.
Therefore, for the condition of the oil-based drilling fluid in oil and gas exploitation, the water content of the oil-based drilling fluid returned from the bottom of the well needs to be measured on line so as to monitor the properties of the drilling fluid and ensure the efficiency and safety of exploitation.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides the method for measuring the water content of the oil-based drilling fluid, which can measure the water content of the oil-based drilling fluid returned from the bottom of the well in time and provide reliable drilling fluid information for drilling technicians.
The invention adopts the following technical scheme:
a method for measuring the water content of oil-based drilling fluid comprises the following steps:
step 2, uniformly stirring the prepared sample oil-based drilling fluid, pouring the sample oil-based drilling fluid into a mud tank, allowing the drilling fluid to flow in the mud tank, and sampling the oil-based mud by using a sampling box;
and 4, obviously distinguishing the image characteristics of water and other components in the photo obtained by micrographs of the oil-based drilling fluid. The characteristic contour of the water in the photo is captured by utilizing an image recognition technology and the area of the characteristic contour is calculated. And (3) comparing the area of the water in the picture with the area of the picture to obtain an area ratio, repeating the step 1 to the step 3 for a plurality of times of measurement on the test drilling fluid with the same water content, and taking the average value of the measurement as the corresponding water area ratio under the water content. And the test drilling fluid with the rest water content is also utilized to obtain the corresponding water area ratio.
Further, in the step 1), the water content of the prepared drilling fluid sample is 0, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45% and 50% in sequence.
Further, in the step 4), for the sample drilling fluid with the same water content, the sampling measurement times are not less than n times (n is more than or equal to 500), for the obtained n data, the data are sequenced from small to large, the data of the first 10% and the data of the second 10% are removed, the remaining data are averaged, and the average value is used as the water area ratio under the water content.
Further, in step 2, during sampling, one side of the sampling box facing the flowing direction of the drilling fluid is opened, and the drilling fluid flows into the sampling box to finish sampling.
Furthermore, the sampling position of the sampling box is half of the height of the drilling fluid in the mud tank.
Further, each sampling is performed by simultaneously sampling 5 sampling boxes at the same height.
Further, the time interval between two samplings is 30 s.
Further, when the sample is sent to the position below the objective lens of the microscope after the sampling is finished, the top surface is opened, and the microscope is used for photographing the top surface.
Furthermore, the sampling box comprises bottom plate, curb plate, roof, and the space size that these three parts enclose is length 50mm, wide 50mm, high 3 mm. The bottom plate is connected with a support rod, the side plate and the top plate are respectively connected with a connecting rod, and the support rod is provided with a traction mechanism for driving the connecting rod to move so as to open and close the sampling box. The bottom plate, the side plate, the top plate, the supporting rod and the connecting rod are all made of polytetrafluoroethylene, and the bottom plate, the side plate, the top plate, the supporting rod and the connecting rod are stable in chemical property, corrosion-resistant and high-temperature-resistant. The traction mechanism comprises a pinion, a rack, a mounting plate and a base plate. During the sample, the motor drives the pinion and rotates, and the pinion drives rack I again and rotates, and rack I makes connecting rod I upward movement in vertical direction through the transmission, drives the curb plate and opens. The sampling box has a small inner cavity volume, and drilling fluid can be filled in the sampling box in a very short time, so that after the side plate is set to be opened for 3s, the pinion rotates reversely, the connecting rod I moves vertically downwards, and the side plate is driven to move downwards to close the sampling box. After the sample box is placed on the high power microscope objective table, the motor drives the gear on the mounting plate to rotate, and II tip of connecting rod have a tooth to with gear engagement, make connecting rod II move right at the level, drive the roof and open right, set for the sample time of shooing and be 3s, after 3s, pinion antiport on the mounting plate drives II levels of connecting rod and moves left in order to close the roof. The function of bracing piece is the steady support sampling box. The thickness of the inner cavity of the sampling box is 3 mm.
Furthermore, a relational expression of the water content and the area ratio is established according to the water content area ratio, and the relational expression is used as a calculation expression for subsequent water content measurement.
The invention has the beneficial effects that:
the invention utilizes the principle of image identification, utilizes a computer to identify the water characteristic image in the photo of the oil-based drilling fluid obtained by high-power microscopic photographing, and calculates the ratio of the water area to the photo area. The ratio is different under different water contents. Through a large number of sampling tests, the corresponding relation between the water area ratio and the water content is established.
The invention is less influenced by factors such as temperature, pressure and the like, the water content of the oil-based drilling fluid returned from the well bottom can be measured after short time delay, reliable drilling fluid information can be provided for drilling technicians, and when the water content of the returned drilling fluid changes, the technicians can adjust the density of the oil-based drilling fluid in time so as to ensure the efficiency and safety of drilling.
Drawings
FIG. 1 is a front view of moisture content measurement;
FIG. 2 is a top view of moisture content measurement;
FIG. 3 is a schematic view of a sampling cassette;
FIG. 4 is a schematic view of a sampling box during sampling;
FIG. 5 is a schematic diagram of a photo sampling box;
FIG. 6 is a schematic connection diagram of a rack I and a connecting rod I;
FIG. 7 is a schematic view of the connection between the mounting plate and the connecting rod II;
FIG. 8 is a flow chart of the steps of the present invention.
In the figure, 1-a sampling box, 2-a mud groove, 3-drilling fluid, 4-a bottom plate, 5-a side plate, 6-a top plate, 7-a supporting rod, 8-a connecting rod I, 9-a connecting rod II, 10-a high power microscope, 11-a rack I, 12-a mounting plate and 13-a backing plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described below clearly and completely, and it is obvious that the described embodiments are some, not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention is suitable for the production field of oil and gas exploitation by adopting the oil-based drilling fluid, samples the oil-based drilling fluid returned from the well bottom, and calculates the proportion of the water area in the picture by adopting a microscopic photographing and image recognition method so as to obtain the water content of the oil-based mud.
As shown in fig. 1 and 8, the method for measuring the water content of the oil-based drilling fluid comprises the following steps:
The raw materials, the standard container and the high-shear emulsifying machine in a laboratory are utilized to prepare the oil-based drilling fluid with different water contents, and the water contents of the prepared oil-based drilling fluid are respectively 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45% and 50%. The prepared drilling fluid 3 is used as a sample drilling fluid 3 for subsequent tests.
Step 2, leading the sludge into a slurry tank
And (3) pouring the drilling fluid 3 prepared in the step (1) into a mud pit 2, allowing the drilling fluid 3 to flow in the mud pit 2, and sampling the flowing drilling fluid sample by using a sampling box. During sampling, one side of the sampling box 1 facing the flowing direction of the drilling fluid 3 is opened, and the drilling fluid 3 flows into the sampling box 1. The sampling position of the sampling box 1 is half of the height of the drilling fluid 3 in the mud pit 2, 5 sampling boxes 1 are used for simultaneously sampling at the same height for each sampling, as shown in figures 1, 2, 3 and 4, and the time interval of the two samplings is 30 s.
For the sample box 1 with completed sampling, it is sent to the stage of the high power microscope 10, and it is photographed by the high power microscope 10. When taking a picture, the top plate 6 of the sampling box 1 is opened for taking a picture by a microscope, as shown in fig. 5. And transmitting the photographed picture to a computer for image recognition processing.
Furthermore, the sampling box 1 is composed of a bottom plate 4, a side plate 5 and a top plate 6, the bottom plate 4, the side plate 5 and the top plate 6 are all made of polytetrafluoroethylene, the thickness of the bottom plate 4, the thickness of the side plate 5 and the thickness of the top plate 6 are all 5mm, and the enclosed sampling volume is 50mm in length, 50mm in width and 3mm in height. The bottom plate 4 is connected with a support rod 7, the side plate 5 is connected with a connecting rod I8, the top plate 6 is connected with a connecting rod II 9, and the connecting rod I8 is arranged on the end face of the side plate 5 and used for driving the side plate to open and close; the connecting rod II 9 is arranged on the side face of the top plate and used for driving the top plate to be opened and closed during photographing, and the view of the lens cone cannot be blocked.
As shown in FIGS. 6 to 7, the sampling box is composed of a bottom plate 4, side plates 5 and a top plate 6, and the space enclosed by the three parts has a length of 50mm, a width of 50mm and a height of 3 mm. The bottom plate 4 is connected with a support rod 7, the side plate 5 and the top plate 6 are respectively connected with a connecting rod, and a traction mechanism is arranged on the support rod 7 and used for driving the connecting rod to move so as to open and close the sampling box. The bottom plate 4, the side plate 5, the top plate 6, the supporting rod 7 and the connecting rod are all made of polytetrafluoroethylene, and the bottom plate is stable in chemical property, corrosion-resistant and high-temperature-resistant. The traction mechanism comprises a pinion and a rack, a mounting plate 12 and a backing plate 13. During the sample, the motor drives pinion rotation, and the pinion drives rack I11 again and rotates, and rack I11 makes connecting rod I8 upward movement in vertical direction through the transmission, drives curb plate 5 and opens. The sampling box has a small inner cavity volume, and drilling fluid can be filled in the sampling box in a very short time, so that after the side plate is set to be opened for 3s, the pinion rotates reversely, the connecting rod I8 moves vertically downwards, and the side plate 5 is driven downwards to close the sampling box. After the sample box is placed on the high power microscope objective table, the motor drives the gear on the mounting plate 12 to rotate, the end part of the connecting rod II 9 is provided with teeth, and the connecting rod II 9 is meshed with the gear, so that the connecting rod II 9 moves rightwards in the horizontal direction to drive the top plate 6 to be opened rightwards, the sampling photographing time is set to be 3s, and after 3s, the pinion on the mounting plate reversely rotates to drive the connecting rod II 9 to move leftwards in the horizontal direction to close the top plate 6. The function of bracing piece is the steady support sampling box. The thickness of the inner cavity of the sampling box is 3 mm.
The components of the oil-based drilling fluid are complex, but in a micrograph, the image profile of water in the oil-based drilling fluid is obviously different from the image characteristics of other components, and the image profile of the water is captured and the area of the water is calculated by adopting an image recognition technology. Comparing the water area with the photo area to obtain a water area ratio. In order to ensure an accurate measurement result, sampling drilling fluid samples with the same water content for 1000 times, arranging 1000 calculation results in a sequence from small to large, then eliminating data of the first 10% and the second 10%, averaging the rest values, and taking the average value as a water area ratio corresponding to the water content.
And (3) sampling, shooting and calculating the drilling fluid 3 with each water content of the configured plurality of sample drilling fluids 3 according to the steps 1-3, so as to obtain the water area ratio corresponding to each water content.
Furthermore, a relational expression of the water content and the area ratio is established according to the water content area ratio, and the relational expression is used as a calculation expression for subsequent water content measurement.
Examples
Oil-based drilling fluids with water contents of 0, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45% and 50% are prepared in a laboratory, each drilling fluid is fully emulsified and stirred by a high-shear emulsifying machine, and the drilling fluids are poured into a mud pit for sampling, photographing, calculating and data processing after being uniformly stirred, and the obtained test results are shown in the following table:
for the data in the table above, the fitting equation is y 1.0604 x-0.1664. Wherein y is the water content (%) and x is the water area ratio (%).
For the measurement model with the established fitting formula, 3 kinds of oil-based drilling fluids are obtained from a mud tank returned from 3 production wells on a drilling site, and sampling, photographing and calculating are carried out on the oil-based drilling fluids by using a measuring device. The area ratio of the obtained three groups is 11.34%, 26.94% and 36.64%, and the water content is respectively 11.85%, 28.40% and 38.68% by adopting a fitting formula. The water contents of the three drilling fluids measured by a drying method are 12.2%, 27.63% and 37.72%. The result shows that the moisture content measuring result obtained by the measuring device is reliable and can be used for production field measurement.
And performing data fitting on the known water content value and the known water area ratio to obtain a final corresponding relation of the water content and the area ratio, and inputting the relation into a computer, so that in the subsequent measurement, the water content value corresponding to the calculated value can be obtained according to the image identification and the calculated area ratio result, and the measurement of the water content of the oil-based drilling fluid is completed.
The measuring method can measure the water content of the sampled drilling fluid in a short time, can provide accurate and timely oil-based drilling fluid performance information for drilling technicians, and can quickly make corresponding adjustment when the water content of the drilling fluid returned from the well bottom changes. And the parameters such as the density of the drilled well are kept under the optimal condition, so that the safety and the efficiency of oil and gas exploitation are facilitated.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110524038.9A CN113252671A (en) | 2021-05-13 | 2021-05-13 | Method for measuring water content of oil-based drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110524038.9A CN113252671A (en) | 2021-05-13 | 2021-05-13 | Method for measuring water content of oil-based drilling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113252671A true CN113252671A (en) | 2021-08-13 |
Family
ID=77181767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110524038.9A Pending CN113252671A (en) | 2021-05-13 | 2021-05-13 | Method for measuring water content of oil-based drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113252671A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115078479A (en) * | 2022-06-24 | 2022-09-20 | 西南石油大学 | A method for measuring the dielectric constant of oil-based mud |
| CN116952937A (en) * | 2023-07-26 | 2023-10-27 | 西南石油大学 | Drilling fluid on-line detection image recognition analysis device |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6128949A (en) * | 1998-06-15 | 2000-10-10 | Schlumberger Technology Corporation | Phase change analysis in logging method |
| US20070048874A1 (en) * | 2005-08-25 | 2007-03-01 | The University Of Wyoming Research Corporation D/B/A Western Research Institute | Processing and analysis techniques involving in-vessel material generation |
| CN103266866A (en) * | 2013-03-01 | 2013-08-28 | 中国石油天然气股份有限公司 | Key needle tube type anti-theft anti-freezing sampling valve |
| CN105804721A (en) * | 2016-04-25 | 2016-07-27 | 长沙理工大学 | Karst cave probing system and using method thereof |
| US20160320323A1 (en) * | 2015-04-29 | 2016-11-03 | Colorado School Of Mines | Water/oil/gas emulsions/foams characterization using low field nuclear magnetic resonance |
| CN106814166A (en) * | 2017-02-28 | 2017-06-09 | 中国地质大学（武汉） | Evaluate the experimental provision and method of gas hydrate synthesis and Assembling Behavior in deepwater drilling |
| CN106908436A (en) * | 2017-03-06 | 2017-06-30 | 钢研纳克检测技术有限公司 | The analysis ranking method of manganese sulfide type impurity in steel based on calibration curve |
| CN108505990A (en) * | 2018-07-05 | 2018-09-07 | 西南石油大学 | A kind of down-hole oil tube tracer transmission groundwater prospecting method and device |
| CN209327047U (en) * | 2018-12-28 | 2019-08-30 | 江苏雅信昆成检测科技有限公司 | A kind of sludge profile sampler |
| CN210948645U (en) * | 2019-11-19 | 2020-07-07 | 四川省蜀通岩土工程公司 | Air bag type layered water pumping test system for drilling holes in same diameter |
| CN111812138A (en) * | 2020-06-08 | 2020-10-23 | 河北省产品质量监督检验研究院 | Method for measuring asbestos content in brake pad by scanning electron microscope-energy spectrometer |
| CN111852437A (en) * | 2020-08-05 | 2020-10-30 | 曾小春 | Oil well environmental protection sampling device |
| CN212030976U (en) * | 2020-05-04 | 2020-11-27 | 合肥学院 | A sampling device for soil antibiotic detection |
| CN112014157A (en) * | 2019-06-01 | 2020-12-01 | 酒泉市汉鑫科技有限公司 | Drawer type full-automatic on-line sampler |
| CN212898476U (en) * | 2020-07-10 | 2021-04-06 | 中国煤炭地质总局勘查研究总院 | Gas logging mud current stabilizer and gas logging system |
-
2021
- 2021-05-13 CN CN202110524038.9A patent/CN113252671A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6128949A (en) * | 1998-06-15 | 2000-10-10 | Schlumberger Technology Corporation | Phase change analysis in logging method |
| US20070048874A1 (en) * | 2005-08-25 | 2007-03-01 | The University Of Wyoming Research Corporation D/B/A Western Research Institute | Processing and analysis techniques involving in-vessel material generation |
| CN103266866A (en) * | 2013-03-01 | 2013-08-28 | 中国石油天然气股份有限公司 | Key needle tube type anti-theft anti-freezing sampling valve |
| US20160320323A1 (en) * | 2015-04-29 | 2016-11-03 | Colorado School Of Mines | Water/oil/gas emulsions/foams characterization using low field nuclear magnetic resonance |
| CN105804721A (en) * | 2016-04-25 | 2016-07-27 | 长沙理工大学 | Karst cave probing system and using method thereof |
| CN106814166A (en) * | 2017-02-28 | 2017-06-09 | 中国地质大学（武汉） | Evaluate the experimental provision and method of gas hydrate synthesis and Assembling Behavior in deepwater drilling |
| CN106908436A (en) * | 2017-03-06 | 2017-06-30 | 钢研纳克检测技术有限公司 | The analysis ranking method of manganese sulfide type impurity in steel based on calibration curve |
| CN108505990A (en) * | 2018-07-05 | 2018-09-07 | 西南石油大学 | A kind of down-hole oil tube tracer transmission groundwater prospecting method and device |
| CN209327047U (en) * | 2018-12-28 | 2019-08-30 | 江苏雅信昆成检测科技有限公司 | A kind of sludge profile sampler |
| CN112014157A (en) * | 2019-06-01 | 2020-12-01 | 酒泉市汉鑫科技有限公司 | Drawer type full-automatic on-line sampler |
| CN210948645U (en) * | 2019-11-19 | 2020-07-07 | 四川省蜀通岩土工程公司 | Air bag type layered water pumping test system for drilling holes in same diameter |
| CN212030976U (en) * | 2020-05-04 | 2020-11-27 | 合肥学院 | A sampling device for soil antibiotic detection |
| CN111812138A (en) * | 2020-06-08 | 2020-10-23 | 河北省产品质量监督检验研究院 | Method for measuring asbestos content in brake pad by scanning electron microscope-energy spectrometer |
| CN212898476U (en) * | 2020-07-10 | 2021-04-06 | 中国煤炭地质总局勘查研究总院 | Gas logging mud current stabilizer and gas logging system |
| CN111852437A (en) * | 2020-08-05 | 2020-10-30 | 曾小春 | Oil well environmental protection sampling device |
Non-Patent Citations (2)
| Title |
|---|
| Q.F.WEI ET AL: "water-in crude oil emulsions studied in environment scanning electron microscope", 《安徽机电学院学报》 * |
| 徐志农: "《工程材料试验教程》", 30 April 2017, 华中科技大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115078479A (en) * | 2022-06-24 | 2022-09-20 | 西南石油大学 | A method for measuring the dielectric constant of oil-based mud |
| CN115078479B (en) * | 2022-06-24 | 2023-12-12 | 西南石油大学 | Oil-based mud dielectric constant measurement method |
| CN116952937A (en) * | 2023-07-26 | 2023-10-27 | 西南石油大学 | Drilling fluid on-line detection image recognition analysis device |
| CN116952937B (en) * | 2023-07-26 | 2025-02-28 | 西南石油大学 | A drilling fluid online detection image recognition and analysis device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113252671A (en) | Method for measuring water content of oil-based drilling fluid | |
| US7992427B2 (en) | Device and method for testing friction reduction efficiency and suspension systems | |
| AU2016420738B2 (en) | Application of electrochemical impedance spectroscopy in drilling fluid composition measurements | |
| CN112129917A (en) | High-concentration tailing rheological and flow characteristic testing system and using method thereof | |
| US9726589B2 (en) | Apparatus and method to measure a property of wellbore fluid | |
| CN111499792B (en) | Amphiphobic nanoscale plugging agent for oil-based drilling fluid and preparation method and application thereof | |
| CN112630407A (en) | Microcosmic visual simulation experiment device and method for seepage and sand production of hydrate reservoir | |
| CN110749529A (en) | Crude oil solid phase deposition law testing device | |
| CN204177625U (en) | A kind of sampler measuring grain size of sediment | |
| CN116861324A (en) | Method for calculating viscosity of thickened oil emulsion based on support vector machine | |
| KR101502948B1 (en) | Visualization apparatus for wax precipitation and deposition in flowline of subsea petroleum production system | |
| CN106902570A (en) | A kind of oil pinion and-rack filter | |
| CN215889991U (en) | A simulation experiment device for wellbore sand carrying capacity with coiled tubing | |
| CN112083148B (en) | Device and method for measuring solid phase precipitation amount of high-temperature and high-pressure fluid | |
| CN116106175A (en) | A measuring device and measuring method for rheological properties of soft solids | |
| CN118325594A (en) | An identifiable high-efficiency cementing pre-fluid, preparation process and application | |
| CN117347234A (en) | A dissolved gas simulated oil and wax deposition testing device | |
| CN206730679U (en) | A kind of oil pinion and-rack filter | |
| CN117571505A (en) | A device and method for measuring critical shear force of rill erosion | |
| CN110174238A (en) | A kind of model sasnd selection device and model sasnd selection method for density current physical experiments | |
| CN115791511A (en) | A multi-purpose measuring and testing work platform | |
| CN219417121U (en) | Drilling fluid sedimentation stability testing device | |
| CN206177945U (en) | Experimental device for evaluation foam oil oil gas surface stability | |
| CN113403997B (en) | A model sand deposition and scour initiation test device | |
| CN221230469U (en) | Production equipment for waterproof and anti-corrosion exterior wall coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210813 |