CN211043311U - Medium-pressure water loss device with adjustable test angle - Google Patents
Medium-pressure water loss device with adjustable test angle Download PDFInfo
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- CN211043311U CN211043311U CN201921771404.5U CN201921771404U CN211043311U CN 211043311 U CN211043311 U CN 211043311U CN 201921771404 U CN201921771404 U CN 201921771404U CN 211043311 U CN211043311 U CN 211043311U
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Abstract
The utility model relates to a medium pressure dehydration device with adjustable testing angle, which comprises a power device, a ventilation pipeline, a ventilation valve component, a drilling fluid cup and a bracket; the power device is connected with a vent valve assembly through a vent pipeline, and the vent valve assembly is also connected with a drilling fluid cup; the support comprises a base, a support and a rocker, wherein a spherical clamping groove is formed in the base, the rocker is arranged in the spherical clamping groove, the support is arranged on the upper portion of the rocker, the drilling fluid cup is arranged on the support of the support, and the rocker located in the spherical clamping groove drives the drilling fluid cup to achieve angle adjustment through rotation. The utility model discloses can the multi-angle carry out middling pressure desiccation filter-pressing, the test is accurate, under the prerequisite of guaranteeing pressure stability, the sample pressurized is even, normally goes out the liquid, and whole device safety, economy, installation and simple operation have improved the measuring accuracy and the repeatability of middling pressure desiccation instrument.
Description
Technical Field
The utility model relates to a petroleum engineering technical field, concretely relates to but angle regulation's middling pressure is desiccated and is put.
Background
The drilling fluid filtration loss is a phenomenon that free water of the drilling fluid permeates into stratum rocks under the action of drilling fluid pressure difference, the filtration loss of the drilling fluid is an important performance of the drilling fluid, mainly refers to the filtration loss of the drilling fluid and the quality of formed mud cakes, has very important influence on the well wall stability of a stratum which is loosened and broken when drilled and is unstable when meeting water, and is a key index for investigating whether the drilling fluid is beneficial to protecting an oil-gas layer in the drilling operation process. The performance such as poor control can generate adverse effects on various aspects of drilling and geological work, and the drilling fluid filtration performance is analyzed by data measured by a medium-pressure filtration device at present, so that guidance is provided for field treatment and maintenance of the drilling fluid performance.
In the drilling process, due to complex geological conditions, the drilling of a vertical well is difficult to achieve the preset drilling purpose, and currently, the oil and gas drilling is usually completed by adopting a directional drilling technology. The directional well has well deviation at different angles, the pressure of the medium-pressure water loss device is arranged at the top, the pressure of the filter medium is arranged at the lower part, in the pressurizing process, solid particles in a drilling fluid system can be deposited on the filter medium to form mud cakes, the pressure is applied in different directions, the accumulation degree of the formed mud cakes is changed, the filter medium is a key factor influencing the filtration loss, and therefore, the filtration loss can be different in different directions. At present, a medium-pressure water loss device has the defects that only a vertical filter-pressing test can be performed, the constantly-changing shaft filter-loss environment of the whole well section cannot be completely simulated, the size is large, the field use is inconvenient, and the like.
Z L201820672880.0 discloses an inflator type water loss instrument, which mainly adopts an inflator as a gas source device, air as a carrier and a gas storage device on the inflator to maintain stable pressure, replaces a common nitrogen cylinder as a power device, solves the problems of large volume, inconvenient operation and high safety requirement, and is convenient to test.
Z L201820917287.8 discloses a simple turnover type high-temperature high-pressure water loss measuring device, which has a multi-angle test condition, but is different from a test condition and a test standard of a medium-pressure water loss device, has a complex structure and cannot be used for reference.
In summary, no test device for testing the medium-pressure water loss amount at multiple angles is designed at present, and is suitable for field test. Therefore, a new device is urgently needed to be developed to replace the original water loss device, the new device has the characteristics of convenience, low cost and high efficiency, and the operation and installation are convenient, so that the medium-pressure water loss test requirement can be met, and the technical upgrading and technical reconstruction of the device are facilitated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a but middling pressure desiccation device of adjustable test angle, it can effectively solve current middling pressure desiccation device and can't satisfy directional well, the test of the different angle water loss of the full well section of horizontal well, operation inconvenient, the big scheduling problem of size.
In order to achieve the above object, the utility model provides a following technical scheme:
a medium-pressure water loss device with an adjustable testing angle comprises a power device, a ventilation pipeline, a ventilation valve assembly, a drilling fluid cup and a bracket;
the power device is connected with a vent valve assembly through a vent pipeline, and the vent valve assembly is also connected with a drilling fluid cup;
the support comprises a base, a support and a rocker, wherein a spherical clamping groove is formed in the base, the rocker is arranged in the spherical clamping groove, the support is arranged on the upper portion of the rocker, the drilling fluid cup is arranged on the support of the support, and the rocker located in the spherical clamping groove drives the drilling fluid cup to achieve angle adjustment through rotation.
Preferably, the vent line is further provided with a pressure reducing valve assembly, and the pressure reducing valve assembly comprises a pressure gauge and a pressure relief valve.
Preferably, the power device comprises an inflating pipe, the inflating pipe is fixed on the base, an inflating rod is arranged in the inflating pipe, an inflating handle is arranged at the top of the inflating rod, and the inflating handle is pushed by hand; the base is fixed with the gas holder with the inflater intercommunication, has the manometer on the gas holder, and the gas holder is connected with breather pipe line one end, and breather pipe line other end interface is connected with relief pressure valve assembly through the screw.
Preferably, the breather valve assembly comprises a valve body, a valve core and a conical valve rod are arranged in the valve body, the conical valve rod is of a hollow structure, an internal thread is arranged at one end of the conical valve rod, the valve core is provided with a pointed front end with a thread and is connected with the conical valve rod through the thread, and the front end of the conical valve rod penetrates out of the valve body to be connected with a drilling fluid cup and is fixed by a fixing bolt.
Preferably, the support on the support is of a semi-circular arc shape, the middle of the support is of a hollow structure so as to accommodate the drilling fluid cup, and one end of the support is provided with a baffle plate which plays a limiting role in limiting the drilling fluid cup.
Preferably, the height of the cup body of the drilling fluid cup is longer than the diameter of the cup bottom, and the cup body is of a cylindrical structure.
Preferably, the bottom of cup is provided with filter screen and sealing washer, and the centre of filter screen and sealing washer is filter paper, and the sealing washer is located the bottom of cup, sets up on the inside ring structure step of cup.
Preferably, the bottom center of the cup body is connected with an air outlet valve rod, and a measuring cylinder is arranged below an air outlet hole of the air outlet valve rod.
Compared with the prior art, the beneficial effects of the utility model are that: the operation condition of the medium-pressure water loss device is good, medium-pressure water loss filter pressing can be performed at multiple angles, the test is accurate, the sample is uniformly pressed and normally goes out of liquid on the premise that the pressure stability is guaranteed, the whole device is safe, economic, convenient to install and operate, and the test precision and the repeatability of a medium-pressure water loss instrument are improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the vent valve assembly of the present invention;
fig. 3 is a schematic structural view of the bracket of the present invention;
FIG. 4 is an exploded view of the drilling fluid cup of the present invention;
reference numbers and designations in the drawings: in the figure: the device comprises a gas pumping pipe 1, a pressure gauge 2, a gas storage tank 3, a gas venting pipeline 4, a pressure reducing valve assembly 5, a gas venting valve assembly 6, a drilling fluid cup 7, a gas outlet valve rod 8, a measuring cylinder 9, a support 10, a valve core 11, a valve body 12, a fixed bolt 13, a conical valve rod 14, a support 15, a rocker 16, a base 17, a spherical clamping groove 18, a cup cover 19, a cup cover 20, a sealing ring 21, a filter paper 22 and a filter screen 23.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described in conjunction with the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-3, a multi-angle adjustable medium pressure water loss device comprises a drilling fluid cup 7, a support 10 is arranged at the lower part of the drilling fluid cup 7, the support 10 comprises a base 17, a spherical clamping groove 18, a rocker 16 and a support 15, the drilling fluid cup 7 is fixed on the support 15, and the angle of the drilling fluid cup 7 is adjusted through the rotation of the rocker 16 and the support 15. The bottom center of the drilling fluid cup 7 is connected with an air outlet valve rod 8, and a measuring cylinder is arranged below an air outlet of the air outlet valve rod 8.
The conical valve rod 14 is a part of the vent valve assembly 6, the vent valve assembly 6 further comprises a valve core 11, a valve body 12 and a fixing bolt 13, the conical valve rod 14 is of a hollow structure, an internal thread is arranged at one end of the conical valve rod 14, the valve core 11 is provided with a tip-shaped front end with a thread, the tip-shaped front end is connected with the conical valve rod 14 through the thread and is fixed through the fixing bolt 13. The cone valve rod 14 is fixedly connected with the drilling fluid cup 7.
Drilling fluid cup 7 one side is for giving drilling fluid cup 7 power device who carries the air supply, including inflating pipe 1, manometer 2, gas holder 3, has fixed gas holder 3 on the power device base, and there is manometer 2 at 3 tops of gas holder, and interface connection is passed through with 4 one ends of breather pipe line in gas holder 3, and relief valve subassembly 5 is connected to the other end, and relief valve subassembly 5 contains manometer and relief valve, and relief valve subassembly 5 is connected with breather valve subassembly 6 through breather pipe line 4.
The working principle is as follows:
injecting a certain amount of drilling fluid into the drilling fluid cup 7, tightening the cup cover, switching on an air source, adjusting the air source with the pressure of 1MPa to 0.69MPa, opening the valve core, enabling the air source to enter the drilling fluid cup 7, recording the filtration loss after 30 minutes of filtration through the filtering area of 22.6cm2, and collecting a filter cake formed by filter pressing.
Example 2
Referring to fig. 4, the drilling fluid cup 7 of the present embodiment mainly includes a cup body 20, a cup cover 19, a filter screen 23 and a sealing ring 21 disposed at the bottom of the drilling fluid cup 7, a filter paper 22 disposed between the filter screen 23 and the sealing ring 21, and the sealing ring 21 disposed at the bottom of the cup body 20 and disposed on a step of an annular structure inside the cup body 20. Connecting holes are formed in the center of the upper cup cover 19 and the center of the lower cup cover 19, the central connecting hole of the cup cover 19 at the bottom of the drilling fluid cup 7 is connected with the air outlet valve rod 8, the measuring cylinder 9 is arranged at the right lower end of the air outlet valve rod 8, and the connecting hole of the cup cover 19 at the top is connected with the conical valve rod 14.
Other components in this embodiment are the same as those in embodiment 1.
The assembly of this embodiment is as follows:
a hand-push type power device is connected with a pressure reducing valve assembly 5 through a ventilation pipeline 4 (such as a hose), the pressure reducing valve assembly 5 is connected with a ventilation valve assembly 6 through the ventilation pipeline 4 (such as the hose) and fixed through threads, then a conical valve rod 14 in the ventilation valve assembly 6 is installed on a cup cover 19 of a drilling fluid cup 7 and screwed, the cup cover 19 is installed on a cup body 20, a sealing ring 21 is placed at a clamping groove at the bottom of the cup, a filter paper 22 is placed at the upper part of the cup, a filter screen 23 is arranged on the filter paper 22, then the cup cover is applied and screwed and fixed on the cup body, the air valve rod 8 is inserted into the center of the cup cover 19 with the filter screen 23 and screwed anticlockwise to be in a closed state, and finally the cup body 20.
Example 3
Embodiment 3 is the same in structural principle as embodiment 2, except that the air outlet valve rod is a tapered valve rod 14 which has the same structure as that of the air vent valve assembly 6.
Example 4
The utility model discloses an operation process as follows:
1. and (5) checking whether the parts of the drilling fluid cup 7 are complete and clean and whether the filter paper 22 is damaged or not, and the filter screen 23 is clean.
2. And (4) checking whether the pressure gauge 2 is normal or not, and whether the vent valve assembly 6 and the sealing ring 21 are damaged or not, so that vent holes of the vent valve assembly 6 and the pressure reducing valve assembly 5 are smooth and free of blockage.
3. The tightness of the device is detected, the inflator 1 is subjected to a pressurizing test, whether air outlet is normal or not is observed in the test process, and whether the pressure gauge 2 displays normal or not is judged.
4. The inflating handle is held by hand, the inflating rod is moved up and down, the piston is driven to enable the air pressure to be generated in the inflator 1, and the air pressure is stored on the inflator 1 to provide testing pressure for the instrument.
5. The connector of the air storage tank 3 is connected with an air vent pipeline 4, a nut at the other end of the air vent pipeline 4 is connected to the connector of the pressure reducing valve assembly 5, the pressure regulating knob is in a free state, the inflating rod moves up and down, the pressure gauge is observed, and the inflator is ensured to inflate to 1 MPa.
6. The vent valve assembly 6 is connected with the joint of the pressure reducing valve assembly 5 through a hose by screw threads, a conical valve rod 14 of the vent valve assembly 6 is inserted into a valve body 12, a fixing bolt 13 is inserted into a small hole on the valve body 12 for fixing, then a valve core 11 is screwed, and the other end of the conical valve rod 14 is connected with a drilling fluid cup 7 and rotates clockwise to a closed state.
7. The cup cover 19 and the cup body 20 are tightened by hexagon screws, 240ml of drilling fluid sample is poured into the sample cup, the sealing ring 21, the filter paper 22, the filter screen 23 and the cup cover 19 are sequentially arranged, finally, the air outlet valve rod 8 is inserted into the cup cover 19 at the bottom and is fixed in a rotating mode, and the air outlet valve rod 8 is tightened clockwise and is in a closed state.
8. The drilling fluid cup 7 is placed on the support 10, and the support 15 on the support 10 is adjusted to adjust the drilling fluid cup 7 to the test angle specified in the experiment.
9. The dry measuring cylinder 9 is placed under the outlet valve stem 8 and is positioned in alignment with the outlet for receiving the filtrate.
10. And opening a valve core 11 of the vent valve assembly 6, being in a free state, opening a pressure reducing valve, adjusting clockwise, ensuring that the pressure is 0.7MPa through pressure relief, and finally rotating the air inlet valve rod and the air outlet valve rod by 90 degrees anticlockwise, ventilating and carrying out a filtration test.
11. The 7.5 minute and 30 minute graduated cylinder filtrate values were recorded as the basis for medium pressure water loss calculations.
Parts not described in the above modes can be realized by adopting or referring to the prior art.
The utility model discloses the operation is effectual, can the multi-angle carry out the filter-pressing, and the test is comprehensive, accurate, and whole device safety, economy, installation and simple operation have improved the measuring accuracy and the repeatability of middling pressure dehydration instrument, can be fine satisfy practical application's needs.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The medium-pressure water loss device capable of adjusting the test angle is characterized by comprising a power device, a ventilation pipeline, a ventilation valve assembly, a drilling fluid cup and a support;
the power device is connected with a vent valve assembly through a vent pipeline, and the vent valve assembly is also connected with a drilling fluid cup;
the support comprises a base, a support and a rocker, wherein a spherical clamping groove is formed in the base, the rocker is arranged in the spherical clamping groove, the support is arranged on the upper portion of the rocker, the drilling fluid cup is arranged on the support of the support, and the rocker located in the spherical clamping groove drives the drilling fluid cup to achieve angle adjustment through rotation.
2. The apparatus of claim 1, wherein the vent line further comprises a pressure relief valve assembly, the pressure relief valve assembly comprising a pressure gauge and a pressure relief valve.
3. The medium pressure water loss device with the adjustable test angle of claim 1, wherein the power device comprises an inflation pipe, the inflation pipe is fixed on the base, an inflation rod is arranged in the inflation pipe, an inflation handle is arranged at the top of the inflation rod, and the inflation handle is pushed by hand; the base is fixed with the gas holder with the inflater intercommunication, has the manometer on the gas holder, and the gas holder is connected with breather pipe line one end, and breather pipe line other end interface is connected with relief pressure valve assembly through the screw.
4. The medium pressure water loss device with the adjustable test angle of claim 1, wherein the vent valve assembly comprises a valve body, a valve core and a conical valve rod are arranged in the valve body, the conical valve rod is of a hollow structure, an internal thread is arranged at one end of the conical valve rod, the valve core is provided with a pointed front end with a thread, the pointed front end is connected with the conical valve rod through the thread, and the front end of the conical valve rod penetrates out of the valve body to be connected with a drilling fluid cup and is fixed through a fixing bolt.
5. The medium pressure water loss device with the adjustable test angle of claim 1, wherein the support on the bracket is a semi-circular arc, the middle of the support is a hollow structure for accommodating the drilling fluid cup, and one end of the support is provided with a baffle plate for limiting the drilling fluid cup.
6. The medium pressure water loss device with the adjustable test angle of claim 1, wherein the height of the body of the drilling fluid cup is longer than the diameter of the bottom of the drilling fluid cup, and the drilling fluid cup is of a cylindrical structure.
7. The medium pressure water loss device with the adjustable test angle as claimed in claim 6, wherein the bottom of the cup body is provided with a filter screen and a sealing ring, the filter screen and the sealing ring are sandwiched by filter paper, and the sealing ring is arranged at the bottom of the cup body and is arranged on the step of the annular structure inside the cup body.
8. The medium pressure water loss device with the adjustable test angle of claim 6, wherein the bottom center of the cup body is connected with an air outlet valve rod, and a measuring cylinder is arranged below an air outlet hole of the air outlet valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921771404.5U CN211043311U (en) | 2019-10-21 | 2019-10-21 | Medium-pressure water loss device with adjustable test angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921771404.5U CN211043311U (en) | 2019-10-21 | 2019-10-21 | Medium-pressure water loss device with adjustable test angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211043311U true CN211043311U (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921771404.5U Active CN211043311U (en) | 2019-10-21 | 2019-10-21 | Medium-pressure water loss device with adjustable test angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211043311U (en) |
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2019
- 2019-10-21 CN CN201921771404.5U patent/CN211043311U/en active Active
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