CN111810466B - Oil injection device and oil injection process - Google Patents
Oil injection device and oil injection process Download PDFInfo
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- CN111810466B CN111810466B CN202010636240.6A CN202010636240A CN111810466B CN 111810466 B CN111810466 B CN 111810466B CN 202010636240 A CN202010636240 A CN 202010636240A CN 111810466 B CN111810466 B CN 111810466B
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- cavity
- oil
- negative pressure
- oil injection
- oil storage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/26—Supply reservoir or sump assemblies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F3/00—Pumps using negative pressure acting directly on the liquid to be pumped
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/005—Filling or draining of fluid systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses an oil injection device and an oil injection process, wherein the oil injection device comprises an oil storage cavity (2), and is characterized in that: a deformable diaphragm (8) is arranged in the oil storage cavity (2); the deformable diaphragm (8) separates the oil storage cavity (2) into a first cavity (7) and a second cavity (9); the oil injection process comprises the steps of extracting air in the first cavity or the second cavity to form a first negative pressure cavity; performing first oiling on the first negative pressure cavity; after the first negative pressure cavity is closed, extracting air in the other cavity of the oil storage cavity to form a second negative pressure cavity; the second negative pressure cavity is used for increasing the volume of the first negative pressure cavity; performing secondary oil injection on the first negative pressure cavity; the problem of current hydraulic unit oil storage chamber and oiling technology because of can't guarantee the filling degree in oil storage chamber so that the oiling effect is unsatisfactory is solved.
Description
Technical Field
The invention relates to a hydraulic unit oil storage cavity contained in a hydraulic unit module of an underground while-drilling instrument in an oil drilling process and an oil injection process thereof.
Background
At present, in the process of petroleum drilling, an underground drilling instrument generally comprises a hydraulic unit module, the volume of an oil storage cavity in the hydraulic unit module is dynamically variable in the working process, and the original filling degree of hydraulic oil in the oil storage cavity directly influences the working performance and the working efficiency of the hydraulic unit module.
Generally, an oil storage cavity in a hydraulic unit module is in a capsule shape, the top end of the oil storage cavity is opened, hard rubber materials are adopted, a repeated circulation method of 'oil injection, vacuumizing and oil injection' is mostly adopted when hydraulic oil is injected into the oil storage cavity, and the oil injection efficiency is low. And for different hydraulic unit modules, the number of times of repeated circulating operation required by oiling the oil storage cavity cannot be uniformly and quantitatively determined, and due to the influence of various factors, the repeated circulating operation is possible for 3 times or 5 times or even more. And the good or bad oil injection effect directly influences the pressure rise of the hydraulic unit module.
From the practical application effect, the repeated circulating oil injection mode is adopted, the fact that the fullness degree of the oil storage cavity meets the requirement is difficult to guarantee, whether the injection quantity of the hydraulic oil is qualified or not cannot be determined, the actual oil injection effect is not ideal, and the working performance of the hydraulic unit module is indirectly influenced.
Disclosure of Invention
In view of the above, the invention provides an oil injection device and an oil injection process, which solve the problem that the oil injection effect is not ideal due to the fact that the fullness of an oil storage cavity cannot be ensured in the existing hydraulic unit oil storage cavity and the oil injection process.
In a first aspect, the oil injection device comprises an oil storage cavity, and is characterized in that:
a deformable diaphragm is arranged in the oil storage cavity;
the deformable diaphragm separates the oil storage cavity into a first chamber and a second chamber.
Further, the deformable membrane is an elastic membrane.
Further, the first cavity pipeline is connected with a first vacuum pump;
the second cavity pipeline is connected with a second vacuum pump.
Further, a first valve is connected between the first cavity and the first vacuum pump through a pipeline;
a second valve is connected between the second cavity and the second vacuum pump through a pipeline.
An oiling process is characterized in that:
using the oiling device of any of the first aspects;
drawing air from within the first or second cavity to form a first negative pressure cavity;
performing first oiling on the first negative pressure cavity;
after the first negative pressure cavity is closed, extracting air in the other cavity of the oil storage cavity to form a second negative pressure cavity;
the second negative pressure cavity is used for increasing the volume of the first negative pressure cavity;
and performing secondary oil injection on the first negative pressure cavity.
Further, the first oil injection and the second oil injection are realized by immersing the first negative pressure cavity into an oil groove;
the first negative pressure cavity sucks hydraulic oil in the first negative pressure cavity from the oil groove.
The invention has the following beneficial effects:
the oil injection device disclosed by the invention applies the deformable diaphragm in the oil storage cavity, the deformable diaphragm divides the oil storage cavity into two mutually independent cavities, and each independent cavity is provided with an independent opening; during oil injection, the first or second chamber 9 is selected as an oil storage chamber of the hydraulic unit module, then the first or second chamber 9 is vacuumized and injected with oil, then the other chamber is vacuumized by virtue of the performance characteristics of the deformable diaphragm, the deformable diaphragm deforms under the action of vacuum, so that the volume of the first or second chamber 9 which is injected with oil is increased, namely the first or second chamber 9 can contain more hydraulic oil, and the first or second chamber 9 is continuously injected with oil for the second time, so that more hydraulic oil is injected into the first or second chamber 9; therefore, by adopting the oil injection device and the oil injection process, the injection amount of the first or second cavity 9 can be ensured to be increased, so that the original filling degree of the hydraulic oil in the first or second cavity 9 can meet the working requirement of the hydraulic unit module, and the working performance and the working efficiency of the hydraulic unit module can be ensured. And the oiling process can finish the oiling operation only by one-time operation, and the oiling efficiency is higher.
In addition, the deformable diaphragm has high deformation freedom, so that the shape of the oil storage cavity is changed more freely, and the requirement of the dynamic variability of the volume of the oil storage cavity in the hydraulic unit module in the working process is met better.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of an oil injection device according to an embodiment of the invention.
Detailed Description
The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the present invention, certain specific details are set forth. However, the present invention may be fully understood by those skilled in the art for those parts not described in detail.
Furthermore, those skilled in the art will appreciate that the drawings are provided solely for the purposes of illustrating the invention, features and advantages thereof, and are not necessarily drawn to scale.
Also, unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, the meaning of "includes but is not limited to".
FIG. 1 is a schematic structural view of an oil injection device according to an embodiment of the present invention; in fig. 1, the oil injection device comprises an oil storage cavity 2, wherein a deformable diaphragm 8 is arranged in the oil storage cavity 2, and the deformable diaphragm 8 separates the oil storage cavity 2 into a first cavity 7 and a second cavity 9.
The oil injection device of the embodiment applies the deformable diaphragm 8 in the oil storage cavity 2, the deformable diaphragm 8 divides the oil storage cavity into two mutually independent cavities, and each independent cavity is provided with an independent opening; during oil injection, the first cavity 7 or the second cavity 9 is selected as an oil storage cavity of the hydraulic unit module, then the first cavity 7 or the second cavity 9 is vacuumized and injected with oil, then the other cavity is vacuumized again by virtue of the performance characteristics of the deformable diaphragm, the deformable diaphragm 8 deforms under the vacuum action, so that the volume of the first cavity 7 or the second cavity 9 which is injected with oil is increased, namely the first cavity 7 or the second cavity 9 can contain more hydraulic oil, the first cavity 7 or the second cavity 9 is continuously injected with oil for the second time, and more hydraulic oil is injected into the first cavity 7 or the second cavity 9 through the second oil injection; therefore, by adopting the oil injection device and the oil injection process, the injection amount of the first cavity 7 or the second cavity 9 can be surely increased, so that the original filling degree of the hydraulic oil in the first cavity 7 or the second cavity 9 can be ensured to meet the working requirement of the hydraulic unit module, and the working performance and the working efficiency of the hydraulic unit module can be directly ensured.
In addition, the deformable diaphragm 8 has high deformation freedom, so that the shape change of the oil storage cavity is more free, and the requirement of the dynamic variability of the volume of the oil storage cavity in the hydraulic unit module in work is better met.
Although the capsule type oil storage cavity in the background art can be vacuumized for many times, the oil storage cavity is filled with hydraulic oil basically, so that the residual space in the oil storage cavity is very small, and even if the oil storage cavity is vacuumized for the second time or more, enough space is hardly increased to increase the injection amount of the hydraulic oil meeting the requirement, so that the oil injection effect is not obviously improved even though the oil injection efficiency is reduced through the multiple times of vacuumization, and the filling degree of the hydraulic oil cannot be ensured even if the oil injection efficiency is lost.
In fig. 1, the deformable membrane 8 is an elastic membrane. For example, the elastic diaphragm can be made of rubber with good elasticity.
In fig. 1, the first chamber 7 is connected to a first vacuum pump 3 via a first line 4, and the second chamber 9 is connected to a second vacuum pump 11 via a second line 12. A first valve 5 is arranged between the first cavity 7 and the first vacuum pump 3, a second valve 13 is arranged between the second cavity 9 and the second vacuum pump 11, and the first valve 5 and the second valve 13 can be selected as stop valves. The first pipeline 4 is connected to the first cavity hole 7 of the oil storage cavity 2, and the second pipeline 12 is connected to the second cavity hole 10 of the oil storage cavity 2.
The process for oiling by using the oiling device of the embodiment mainly comprises the following steps of pumping air in the first cavity 7 or the second cavity 9 to form a first negative pressure cavity; performing first oiling on the first negative pressure cavity; after the first oil injection, closing the first negative pressure cavity, and extracting air in the other cavity of the oil storage cavity 2 to form a second negative pressure cavity; the second negative pressure cavity is established for increasing the volume of the first negative pressure cavity; and performing secondary oil injection on the first negative pressure cavity.
The first oil injection and the second oil injection are carried out by immersing the first negative pressure cavity into the oil groove 1, and then the first negative pressure cavity self-sucks hydraulic oil in the oil groove 1 to achieve the purpose of oil injection.
Specifically, the oil injection device and the oil injection process of the present embodiment are further described with reference to the accompanying drawings to help understand the technical solution of the present application:
taking the second chamber 9 as an oil storage chamber in the hydraulic unit module as an example, the process of oiling the second chamber is as follows:
1. one ends of the first stop valve 5 and the second stop valve 13 are respectively connected with the first cavity hole 7 and the second cavity hole 10;
2. a first vacuum pump 3 and a second vacuum pump 11 are respectively connected with one ends of a first stop valve 5 and a second stop valve 13 through a first pipeline 4 and a second pipeline 12;
3. opening the first stop valve 5 and the second stop valve 13, starting the second vacuum pump 11, vacuumizing the second cavity 9, moving the deformation diaphragm 8 to the end of the second cavity 9 after a certain negative pressure is reached, enabling the volume of the second cavity 9 to tend to zero, and successively closing the second stop valve 13 and the second vacuum pump 11;
4. after the second pipeline 12 and the second stop valve 13 are disconnected, the second cavity 9 and the second stop valve 13 are completely immersed in the oil groove 1 filled with enough hydraulic oil;
5. opening a second stop valve 13 soaked in hydraulic oil, opening the first stop valve 5 after a certain period of time, namely after the second cavity 9 does not suck the hydraulic oil, starting the first vacuum pump 3, vacuumizing the first cavity 7, and moving the deformation diaphragm 8 from the hole end of the second cavity 9 to the end of the first cavity 7 after a certain negative pressure is reached, wherein the volume of the first cavity 7 tends to zero, the volume of the second cavity 9 tends to a maximum state, the hydraulic oil is smoothly injected, the whole second cavity 9 is filled, the first stop valve 5 and the first vacuum pump 3 are closed, and the second stop valve 13 is closed;
6. the second line 12 and the second shut-off valve 13 are removed while the second bore 10 is closed with a plug. Then the first pipeline 4 and the first stop valve 5 are removed, and the first cavity hole 7 is sealed by a plug;
7. taking out the oil storage cavity 2 filled with hydraulic oil from the oil tank 1, and wiping the outer surface of the oil storage cavity for standby;
8. at the moment, the second cavity 9 is filled with hydraulic oil, and oil injection is finished;
9. the second chamber 9 of the oil reservoir chamber 2 is used in a hydraulic unit module.
It can be seen that the oil injection process of the embodiment can complete oil injection operation only by one-time operation, and the oil injection efficiency is higher.
The oiling device and the oiling process have been used by users in practice, and the user has good reflection and use effects and good practicability.
The above-mentioned embodiments are merely embodiments for expressing the invention, and the description is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, without departing from the concept of the present invention, it is possible for those skilled in the art to make various changes, substitutions of equivalents, improvements, and the like, which fall within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (3)
1. An oiling process is characterized in that:
using an oil injection device; the oil injection device comprises an oil storage cavity (2);
a deformable diaphragm (8) is arranged in the oil storage cavity (2);
the deformable diaphragm (8) separates the oil storage cavity (2) into a first cavity (7) and a second cavity (9);
the first cavity (7) is connected with a first vacuum pump (3) through a pipeline;
the second cavity (9) is connected with a second vacuum pump (11) through a pipeline;
-extracting the air inside said first (7) or second (9) chamber to form a first negative pressure chamber;
performing first oiling on the first negative pressure cavity;
after the first negative pressure cavity is closed, extracting air in the other cavity of the oil storage cavity (2) to form a second negative pressure cavity;
the second negative pressure cavity is used for increasing the volume of the first negative pressure cavity;
performing secondary oil injection on the first negative pressure cavity;
the first oil injection and the second oil injection are realized by immersing the first negative pressure cavity into an oil groove (1);
the first negative pressure cavity sucks hydraulic oil in the first negative pressure cavity from the oil groove (1).
2. The oiling process according to claim 1, wherein:
the deformable membrane (8) is an elastic membrane.
3. The oiling process according to claim 2, wherein:
a first valve (5) is connected between the first cavity (7) and the first vacuum pump (3) through a pipeline;
a second valve (13) is connected between the second cavity (9) and the second vacuum pump (11) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010636240.6A CN111810466B (en) | 2020-07-04 | 2020-07-04 | Oil injection device and oil injection process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010636240.6A CN111810466B (en) | 2020-07-04 | 2020-07-04 | Oil injection device and oil injection process |
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| Publication Number | Publication Date |
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| CN111810466A CN111810466A (en) | 2020-10-23 |
| CN111810466B true CN111810466B (en) | 2022-07-22 |
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| CN202010636240.6A Active CN111810466B (en) | 2020-07-04 | 2020-07-04 | Oil injection device and oil injection process |
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Citations (9)
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| JPH09266117A (en) * | 1996-03-28 | 1997-10-07 | Toshiba Fa Syst Eng Kk | Oil-immersed electric machine and oiling method for oil-immersed electric machine |
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2020
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| CN111810466A (en) | 2020-10-23 |
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