CN114183132A - Pressure testing device and crude oil collecting device - Google Patents
Pressure testing device and crude oil collecting device Download PDFInfo
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- CN114183132A CN114183132A CN202111470108.3A CN202111470108A CN114183132A CN 114183132 A CN114183132 A CN 114183132A CN 202111470108 A CN202111470108 A CN 202111470108A CN 114183132 A CN114183132 A CN 114183132A
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- 238000012360 testing method Methods 0.000 title claims abstract description 102
- 239000010779 crude oil Substances 0.000 title claims abstract description 53
- 239000003921 oil Substances 0.000 claims abstract description 85
- 239000007788 liquid Substances 0.000 claims abstract description 80
- 238000007789 sealing Methods 0.000 claims description 17
- 238000013016 damping Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 2
- 230000008602 contraction Effects 0.000 claims 1
- 238000003306 harvesting Methods 0.000 claims 1
- 239000003129 oil well Substances 0.000 abstract description 11
- 239000003208 petroleum Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/10—Locating fluid leaks, intrusions or movements
- E21B47/117—Detecting leaks, e.g. from tubing, by pressure testing
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The application discloses pressure testing device and crude oil collection system belongs to the technical field of petroleum equipment, and wherein, pressure testing device includes casing and slider, and the casing has the inner chamber, and inlet and the liquid outlet with the inner chamber intercommunication are seted up to the casing, and slider movably sets up in the casing, and the slider can be portable to the shutoff with the liquid outlet, or remove to making liquid outlet and inner chamber intercommunication. The oil pump can pass through oil pipe and inlet pump with test liquid and go into to the inner chamber of casing, and test liquid can promote the slider in the casing and remove to the liquid outlet shutoff with the casing, and test liquid is injected into oil pipe and the interior back of casing and can be judged whether oil pipe's leakproofness is good through the hydraulic pressure that detects test liquid. When needs gathered crude oil, the liquid outlet pump of crude oil accessible casing in the oil pump in with the oil well is gone into to the casing, and the oil pressure of crude oil can promote the slider and remove for the slider no longer blocks up in the liquid outlet of casing, and the oil pump can pass through the casing pump with crude oil like this and go into to the oil pipe in and gather.
Description
Technical Field
The application belongs to the technical field of petroleum equipment, especially relates to a pressure testing device and crude oil collection system.
Background
In the petroleum collection engineering, petroleum collection is completed by lowering an oil pipe into a petroleum well and pumping out the petroleum in the petroleum well through an oil pump. In the collection process, if the leakproofness of oil pipe is impaired, can lead to the hydraulic pressure of the oil in the oil pipe to reduce, and then lead to oil collection inefficiency.
In the correlation technique, in order to detect the leakproofness of oil pipe, adopt special pressure measurement equipment to descend to the well, wait to detect to dismantle the check out test set and carry out oil collection after finishing, such detection mode process is complicated, can lead to oil collection inefficiency.
Disclosure of Invention
The technical problem that the existing oil pipe sealing test mode is low in efficiency can be solved to a certain extent at least. Therefore, the application provides a pressure testing device and a crude oil collecting device.
In a first aspect, an embodiment of the present application provides a pressure testing device, including: a shell and a slide block, wherein the shell is provided with a slide block,
the shell is provided with an inner cavity, the shell is provided with a liquid inlet and a liquid outlet which are communicated with the inner cavity, the slider is movably arranged in the shell, and the slider can move to block the liquid outlet or move to enable the liquid outlet to be communicated with the inner cavity.
In some embodiments, the inner cavity includes a first cavity portion and a second cavity portion which are communicated and coaxially arranged, the inner diameter of the first cavity portion is larger than that of the second cavity portion, the outer diameter of the slider is larger than that of the second cavity portion and smaller than that of the first cavity portion, and the slider is movable in the axial direction of the first cavity portion.
In some embodiments, the slider is a ball, and the slider is movable into the first cavity or at least partially within the second cavity.
In some embodiments, the pressure testing device further includes an elastic member disposed in the second cavity, the elastic member is connected to the sliding block, and a stretching direction of the elastic member is in the same direction as an axial direction of the second cavity.
In some embodiments, the pressure testing device further includes an elastic member supporting seat, the elastic member supporting seat is disposed in the second cavity, one end of the elastic member facing away from the slider is connected to the elastic member supporting seat, and the elastic member supporting seat is provided with a through hole communicated with the liquid outlet.
In some embodiments, the resilient member is a spring.
In some embodiments, the pressure testing device further includes a hollow sleeve movably disposed in the casing, an outer wall of the hollow sleeve is attached to an inner wall of the inner cavity, the hollow sleeve has a first opening and a second opening opposite to each other, a third cavity portion communicated with the first opening and the second opening is disposed in the hollow sleeve, the slider is detachably plugged in the first opening, and the hollow sleeve can move along with the slider in an axial direction of the first cavity portion.
In some embodiments, one end of the elastic member passes through the hollow cavity of the hollow sleeve to be connected with the sliding block.
In some embodiments, the outer wall of the hollow sleeve is sleeved with a damping ring, and the outer wall of the damping ring is abutted against the inner wall of the inner cavity.
In some embodiments, the outer wall of the hollow sleeve is sleeved with a sealing ring, and the outer wall of the sealing ring abuts against the inner wall of the inner cavity.
In some embodiments, a first limiting block is arranged on the inner wall of the inner cavity, and a second limiting block which is mutually limited with the first limiting block is arranged on the outer wall of the hollow sleeve.
In some embodiments, the pressure testing device further comprises a stopper disposed in the inner cavity and located between the slider and the liquid inlet, and the stopper is provided with a through hole.
In a second aspect, based on the above pressure testing device, the embodiment of the application further provides a crude oil collecting device, which comprises the above pressure testing device.
In some embodiments, the crude oil collection device further comprises an oil pump and two oil pipes, the oil pump being in communication with the liquid inlet through the oil pipes.
In some embodiments, the crude oil collection unit further comprises an anchor coupled to the tubing.
In the testing device that this application embodiment provided, casing accessible oil pipe and oil pump connection, the oil pump can pass through oil pipe and inlet pump with test liquid and go into to the inner chamber of casing, and test liquid can promote the slider in the casing and remove to the liquid outlet shutoff with the casing, makes like this the exit end of the oil pipe with the casing intercommunication by the shutoff, and test liquid is injected into oil pipe and casing back and can be judged whether oil pipe's leakproofness is good through the hydraulic pressure that detects test liquid. When needs gathered crude oil, the liquid outlet pump of crude oil accessible casing in the oil pump in with the oil well is gone into to the casing, and the oil pressure of crude oil can promote the slider and remove for the slider no longer blocks up in the liquid outlet of casing, and the oil pump can pass through the casing pump with crude oil like this and go into to the oil pipe in and gather.
The testing device provided by the application can be used for detecting the sealing performance of the oil pipe in a matching mode with the oil pump, and meanwhile, after the sealing performance of the oil pipe is tested and completed, crude oil in the oil well can be pumped into the oil pipe through the testing device under the condition that the testing device is not detached, so that the crude oil collecting efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of a pressure testing device disclosed in an embodiment of the present application;
FIG. 2 is a schematic view of a pressure testing device disclosed in an embodiment of the present application during a pressure testing process;
fig. 3 shows a schematic diagram of a pressure test device disclosed in an embodiment of the present application during a crude oil collection process.
Reference numerals:
100-shell, 110-inner cavity, 111-first cavity, 112-second cavity, 120-inlet, 130-outlet,
200-a slide block, wherein the slide block is provided with a slide block,
300-the elastic member is provided with a plurality of elastic pieces,
400-the support base of the elastic element,
500-hollow sleeve, 510-first opening, 520-second opening, 530-third cavity, 540-damping ring, 550-sealing ring, 600-stop.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative position relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The application is described below with reference to specific embodiments in conjunction with the following drawings:
example one
Referring to fig. 1 to 3, an embodiment of the present application discloses a pressure testing device, which includes a housing 100 and a sliding block 200, and can be used to detect whether a tubular column of a screw pump has good sealing performance.
The casing 100 is a basic component of the pressure testing device, and the casing 100 can provide an installation foundation for at least some other components of the pressure testing device and protect at least some other components of the pressure testing device. Since the pressure testing device needs to be lowered into the oil well during the pressure testing process, the housing 100 may be made of a metal material having a good structural strength.
The casing 100 has an inner cavity 110 therein, the casing 100 is further provided with a liquid inlet 120 and a liquid outlet 130 communicated with the inner cavity 110, and a pressure testing liquid can be injected into the inner cavity 110 through the liquid inlet 120 and discharged through the liquid outlet 130. The slider 200 is movably disposed in the housing 100, so that the slider 200 can block the liquid outlet 130 of the housing 100, or the liquid outlet 130 of the housing 100 is communicated with the inner cavity 110.
Particularly, when testing through the pressure testing device of this application to the leakproofness of oil pipe, can go into the oil well under the pressure testing device of this application, and communicate casing 100 through oil pipe and oil pump, the oil pump can pour into test liquid into oil pipe in, test liquid accessible casing 100's inlet 120 enters into the inner chamber 110 to casing 100 afterwards, the pressure of test liquid can promote slider 200 and remove, make slider 200 remove to the shutoff in liquid outlet 130, make like this that test liquid can not discharge through liquid outlet 130, the oil pump can test the hydraulic pressure of test liquid in casing 100 this moment, compare the hydraulic pressure of test liquid this moment with standard hydraulic pressure value, if the test value is less than standard hydraulic pressure value, show oil pipe department promptly and leaked test liquid, make the hydraulic pressure of test liquid reduce. If the test value is the same as or close to the standard hydraulic value, the condition that the test liquid does not leak is represented, and the sealing performance of the oil pipe is good.
When crude oil collection is needed, crude oil in the oil well can be pumped out through the oil pump, the crude oil in the oil well can enter the inner cavity 110 of the shell 100 through the liquid outlet 130 on the shell 100, pressure can be applied to the sliding block 200 in the ascending process of the crude oil, the sliding block 200 is moved to be separated from the liquid outlet 130 on the shell 100, and therefore the crude oil can enter the inner cavity 110 of the shell 100 and enter the oil pipe through the liquid inlet 120 of the shell 100, and finally the crude oil can be pumped out of the oil well.
In the testing device that this application embodiment provided, casing 100 accessible oil pipe and oil pump connection, the oil pump can pass through oil pipe and inlet 120 pump with test liquid and go into to the inner chamber 110 of casing 100, test liquid can promote slider 200 in the casing 100 and remove to the liquid outlet 130 shutoff with casing 100, makes the exit end of the oil pipe of communicating with casing 100 by the shutoff like this, test liquid pours into and can judge through the hydraulic pressure that detects test liquid whether good of oil pipe in oil pipe and the casing 100 back. When crude oil needs to be collected, the oil pump can pump crude oil in the oil well into the shell 100 through the liquid outlet 130 of the shell 100, the oil pressure of the crude oil can push the sliding block 200 to move, the sliding block 200 is no longer blocked at the liquid outlet 130 of the shell 100, and the crude oil can be pumped into the oil pipe through the shell 100 and collected by the oil pump.
The testing device provided by the application can be used for detecting the sealing performance of the oil pipe in a matching mode with the oil pump, and meanwhile, after the sealing performance of the oil pipe is tested and completed, crude oil in the oil well can be pumped into the oil pipe through the testing device under the condition that the testing device is not detached, so that the crude oil collecting efficiency is improved.
In some embodiments, the above inner cavity 110 may be configured to include a first cavity portion 111 and a second cavity portion 112, the first cavity portion 111 is communicated with the second cavity portion 112, and the inner diameter of the first cavity portion 111 is larger than the inner diameter of the second cavity portion 112, and the outer shape of the slider 200 may be configured to match the cavity shape of the second cavity portion 112, so that the slider 200 may close the second cavity portion 112. Specifically, the outer diameter of the second slider 200 may be set to match the inner diameter of the second cavity 112 and smaller than the inner diameter of the first cavity 111, so that when the slider 200 is in the first cavity 111, there is a gap between the slider 200 and the inner wall of the first cavity 111, and when crude oil is collected, crude oil may pass through the first cavity 111 through the gap between the slider 200 and the first cavity 111 and be pumped out of the casing 100 through the inlet port 120 communicating with the first cavity 111.
In some embodiments, after the sliding block 200 is moved to seal the second cavity 112 to complete the oil tube tightness test, crude oil collecting operation may be performed, in order to make it easier for the sliding block 200 to be separated from the second cavity 112, so that the second cavity 112 is communicated with the first cavity 111, the pressure test device of the present application may further include an elastic member 300, the elastic member 300 may be disposed in the inner cavity 110, and the elastic member 300 is connected with the sliding block 200.
After the oil pump injects the test liquid into the housing 100, the test liquid pushes the slider 200 to move, so that the elastic member 300 connected to the slider 200 is stretched or compressed, and after the slider 200 moves to block the second cavity 112, the elastic member 300 is stretched or compressed to the maximum extent. And after the leakproofness test of oil pipe, the test fluid is taken out to the oil well outside by the oil pump, slider 200 no longer receives the pressure that test fluid applyed to it like this, the resilience deformation power of elastic component 300 can promote slider 200 and remove along the direction that deviates from second cavity portion 112, make slider 200 no longer block in second cavity portion 112, like this when carrying out oil recovery operation, second cavity portion 112 and first cavity portion 111 have been in the connected state, crude oil in the oil reservoir can directly enter into first cavity portion 111 through second cavity portion 112 after entering into casing 100, thereby need not to make crude oil promote slider 200 and second cavity portion 112 separation.
Specifically, the elastic member 300 may be disposed in the second cavity 112 and carry the slider 200, and one end of the elastic member 300 may be connected to an inner wall of the second cavity 112, such that when the test liquid is compressed in the slider 200 to seal the slider 200 in the second cavity 112, the elastic member 300 is compressed.
Of course, the elastic member 300 may be disposed in the first chamber portion 111, one end of the elastic member 300 is connected to the inner wall of the first chamber portion 111, the other end of the elastic member 300 is connected to the slider 200, and the slider 200 is suspended in the housing 100 by the elastic member 300, so that the elastic member 300 is stretched when the test liquid is compressed in the slider 200 to seal the slider 200 in the second chamber portion 112.
In order to make the resetting effect of the sliding block 200 better, the number of the elastic pieces 300 can be set to be multiple, the elastic pieces 300 are all connected with the sliding block 200, and the restoring deformation force of the elastic pieces 300 acts on the sliding block 200, so that the sliding block 200 can be separated from the second cavity part 112 more easily, and therefore it is ensured that crude oil can smoothly pass through the second cavity part 112.
In order to facilitate the elastic element 300 to be disposed in the second cavity 112, an elastic element support seat 400 may be further disposed in the second cavity 112, the elastic element support seat 400 may be disposed on a side of the second cavity 112 adjacent to the liquid outlet 130, the elastic element support seat 400 may be attached and fixed to an inner wall of the second cavity 112, and a through hole for crude oil to pass through is disposed on the elastic element support seat 400, such that the elastic element support seat 400 may serve to support and mount the elastic element 300, and the second cavity 112 may be in a state of being communicated with the first cavity 111 and the liquid outlet 130, such that crude oil may pass through.
Of course, the elastic member supporting seat 400 may be further configured to include a plurality of links, each of the plurality of links may be connected to the inner wall of the second chamber portion 112 with a gap therebetween, such that the gap between the plurality of links allows the second chamber portion 112 to be in a passage state. One end of the elastic member 300 may be connected to a connection point of a plurality of links such that the plurality of links together constitute a mounting base of the elastic member 300.
The above elastic member 300 may employ a spring, so that the elastic member 300 may drive the slider 200 to move to be separated from the second cavity 112.
Of course, the elastic member 300 may also be a telescopic mechanism, specifically, the pneumatic telescopic mechanism may include an air bag, a connecting rod and a pressing plate, the air bag is filled with gas, one end of the connecting rod is connected with the pressing plate, the pressing plate is located in the air bag, the other end of the connecting rod may be connected with the sliding block 200, when the test liquid acts on the pressing block to move the pressing block toward the second cavity portion 112, the sliding block 200 may drive the connecting rod to drive the pressing plate to compress the gas in the air bag, and when the test liquid no longer acts on the sliding block 200, the compressed gas in the air bag may push the pressing plate and the connecting rod to move in the opposite direction after the connecting rod is no longer stressed, so that the sliding block 200 may be driven to be separated from the second cavity portion 112.
The pressure test device of the present application can also be provided with an electric telescopic mechanism to replace the elastic member 300, specifically, the telescopic end of the electric telescopic rod can be connected with the sliding block 200, so that the sliding block 200 can move in the housing 100.
The pressure test device of the embodiment of the application is further provided with the hollow sleeve 500, the hollow sleeve 500 is arranged in the inner cavity 110 of the shell 100, the outer wall of the hollow sleeve 500 is attached to the inner wall of the inner cavity 110, so that the test liquid or crude oil cannot pass through the hollow sleeve 500 and the inner cavity 110 of the shell 100, and the hollow sleeve 500 can slide along the inner wall of the inner cavity 110. Specifically, the hollow sleeve 500 is a hollow structure, the hollow sleeve 500 has a first opening 510 and a second opening 520 opposite to each other, the hollow sleeve 500 has a third cavity 530 therein, and the first opening 510 and the second opening 520 communicate with the third cavity 530, the slider 200 is detachably connected to the hollow sleeve 500, specifically, the slider 200 is detachably disposed at the first opening 510 of the hollow sleeve 500, and blocks the first opening 510 of the hollow sleeve 500.
When the tightness of the oil pipe is tested, after the test liquid enters the inner cavity 110 of the housing 100, the test liquid acts on the slider 200, so that the slider 200 and the hollow sleeve 500 both move towards the liquid outlet 130 of the housing 100, and because the slider 200 seals the first opening 510 of the hollow sleeve 500 and the hollow sleeve 500 is tightly attached to the inner wall of the inner cavity 110 of the housing 100, the test liquid cannot leak into the area between the slider 200 and the liquid outlet 130, so that the area between the slider 200 and the liquid outlet 130 in the housing 100 is in a sealed state, and the tightness test of the oil pipe is performed.
When the tubing seal test is completed, the slider 200 may be driven to separate from the first opening 510 of the hollow casing 500, so that crude oil may pass through the third chamber 530 in the hollow casing 500 and be discharged from the first opening 510 of the hollow casing 500 during a crude oil collection process.
The elastic member support seat 400 disposed in the second cavity 112 can limit the hollow sleeve 500, and prevent the hollow sleeve 500 from falling off from the housing 100.
One end of the elastic member 300 disposed in the housing 100 may be connected to the slider 200 through the third cavity 530 of the hollow 500, so that the slider 200 may compress or stretch the elastic member 300 when the slider 200 and the hollow 500 move toward the liquid outlet 130.
In order to prevent the hollow sleeve 500 from moving when the slider 200 is not under the pressure of the test liquid, the outer wall of the hollow sleeve 500 may be sleeved with a damping ring 540, the outer wall of the damping ring 540 is in contact with the inner wall of the inner cavity 110 of the casing 100, and the damping ring 540 may increase the damping between the hollow sleeve 500 and the inner cavity 110 of the casing 100, so as to prevent the hollow sleeve 500 from sliding relative to the casing 100 due to its own weight.
The outer wall of the hollow sleeve 500 can be sleeved with a sealing ring 550, the outer wall of the sealing ring 550 is abutted to the inner wall of the inner cavity 110 of the shell 100, the sealing ring 550 can ensure the sealing performance between the hollow sleeve 500 and the shell 100, and the test liquid and crude oil are prevented from passing between the hollow sleeve 500 and the shell 100, so that the accuracy of the oil pipe sealing performance test is ensured.
The testing device of the embodiment of the application is further provided with a stopper 600, the stopper 600 is located in the inner cavity 110 of the housing 100, the stopper 600 is located between the slider 200 and the liquid inlet 120 of the housing 100, the stopper 600 is used for stopping the slider 200 to limit, and the slider 200 is prevented from falling off the housing 100 through the liquid inlet 120. Specifically, the stopper 600 and the spring support base 400 may limit the range of motion of the slider 200 between the stopper 600 and the spring support base 400. Thus, the opening sizes of the inlet port 120 and the outlet port 130 can be designed according to actual needs, and the opening sizes of the outlet port 130 and the inlet port 120 are not limited by the size of the slider 200.
In a second aspect, based on the above pressure testing device, the embodiment of the present application further provides a crude oil collecting device, which includes the above pressure testing device. Adopt the crude oil collection system of this application can detect the leakproofness of oil pipe before carrying out crude oil collection to guarantee that crude oil can not leak in crude oil collection process.
Specifically, this crude oil collection system still includes oil pump and oil pipe, and the oil pump passes through oil pipe and pressure testing device to be connected, specifically, and the inlet 120 and the liquid outlet 130 of casing 100 all can be connected with oil pipe.
The crude oil collection system of this application still can set up the anchor, and the anchor can be with oil pipe's exit linkage, and the anchor can be fixed in oil pipe in, and then makes the pressure testing device of this application also can be fixed in oil pipe in, makes oil pipe and pressure testing device all can remain stable like this.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Claims (15)
1. A pressure testing device is characterized by comprising a shell (100) and a sliding block (200),
the shell (100) is provided with an inner cavity (110), the shell (100) is provided with a liquid inlet (120) and a liquid outlet (130) which are communicated with the inner cavity (110), the sliding block (200) is movably arranged in the shell (100), and the sliding block (200) can move to seal the liquid outlet (130) or move to enable the liquid outlet (130) to be communicated with the inner cavity (110).
2. The pressure testing device according to claim 1, wherein the inner cavity (110) comprises a first cavity part (111) and a second cavity part (112) which are communicated and coaxially arranged, the inner diameter of the first cavity part (111) is larger than that of the second cavity part (112), the outer diameter of the sliding block (200) is larger than that of the second cavity part (112) and smaller than that of the first cavity part (111), and the sliding block (200) can move along the axial direction of the first cavity part (111).
3. A pressure testing device according to claim 2, characterized in that the slide (200) is a ball, the slide (200) being movable into the first cavity (111) or at least part of the slide (200) being located in the second cavity (112).
4. The pressure testing device according to claim 2, further comprising an elastic member (300), wherein the elastic member (300) is disposed in the second cavity (112), the elastic member (300) is connected to the sliding block (200), and the expansion and contraction direction of the elastic member (300) is the same as the axial direction of the second cavity (112).
5. The pressure testing device according to claim 4, further comprising an elastic member support seat (400), wherein the elastic member support seat (400) is disposed in the second cavity portion (112), one end of the elastic member (300) facing away from the sliding block (200) is connected with the elastic member support seat (400), and the elastic member support seat (400) is provided with a through hole communicated with the liquid outlet (130).
6. The pressure testing device according to claim 4 or 5, characterized in that the elastic member (300) is a spring.
7. The pressure testing device according to claim 4, characterized in that the pressure testing device further comprises a hollow sleeve (500), the hollow sleeve (500) is movably disposed in the casing (100), the outer wall of the hollow sleeve (500) is attached to the inner wall of the inner cavity (110), the hollow sleeve (500) has a first opening (510) and a second opening (520) which are opposite to each other, a third cavity (530) communicated with the first opening (510) and the second opening (520) is disposed in the hollow sleeve (500), the slider (200) is detachably plugged in the first opening (510), and the hollow sleeve (500) can move along the axial direction of the first cavity (111) along with the slider (200).
8. The pressure testing device according to claim 7, wherein one end of the elastic member (300) passes through the third chamber (530) to be connected to the slider (200).
9. The pressure testing device according to claim 7, characterized in that the outer wall of the hollow sleeve (500) is sleeved with a damping ring (540), and the outer wall of the damping ring (540) abuts against the inner wall of the inner cavity (110).
10. The pressure testing device according to claim 7, characterized in that the outer wall of the hollow sleeve (500) is sleeved with a sealing ring (550), and the outer wall of the sealing ring (550) abuts against the inner wall of the inner cavity (110).
11. The pressure testing device according to claim 7, characterized in that a first limiting block is arranged on the inner wall of the inner cavity (110), and a second limiting block which is mutually limited with the first limiting block is arranged on the outer wall of the hollow sleeve (500).
12. The pressure testing device according to claim 1, further comprising a stopper (600), wherein the stopper (600) is disposed in the inner cavity (110), the stopper (600) is located between the sliding block (200) and the liquid inlet (120), and the stopper (600) is provided with a through hole.
13. A crude oil collection device comprising the pressure testing device of any one of claims 1-12.
14. The crude oil collecting device according to claim 13, further comprising an oil pump and two oil pipes, wherein the oil pump is in communication with the liquid inlet (120) through the oil pipes.
15. The crude oil harvesting apparatus of claim 14, further comprising an anchor coupled to the tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111470108.3A CN114183132A (en) | 2021-12-03 | 2021-12-03 | Pressure testing device and crude oil collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111470108.3A CN114183132A (en) | 2021-12-03 | 2021-12-03 | Pressure testing device and crude oil collecting device |
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| CN114183132A true CN114183132A (en) | 2022-03-15 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2818761Y (en) * | 2005-08-30 | 2006-09-20 | 中国石化胜利油田有限公司临盘采油厂 | Tubular column construction and pressure-test integrated equipment under well |
| CN101382131A (en) * | 2008-10-15 | 2009-03-11 | 马子奇 | Pressure testing downhole oil production screw pump |
| US20100200225A1 (en) * | 2007-10-31 | 2010-08-12 | Downhole And Design International Corp. | Multi-functional completion tool |
| CN203394437U (en) * | 2013-08-07 | 2014-01-15 | 中国石油化工股份有限公司 | Automatic pressure relief and pressure test valve of underground pipe column of oil-water well |
| CN210293914U (en) * | 2019-05-28 | 2020-04-10 | 中国石油天然气股份有限公司 | Sand control is with full tubular column oil pipe pressure testing instrument of safe environment-friendly |
-
2021
- 2021-12-03 CN CN202111470108.3A patent/CN114183132A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2818761Y (en) * | 2005-08-30 | 2006-09-20 | 中国石化胜利油田有限公司临盘采油厂 | Tubular column construction and pressure-test integrated equipment under well |
| US20100200225A1 (en) * | 2007-10-31 | 2010-08-12 | Downhole And Design International Corp. | Multi-functional completion tool |
| CN101382131A (en) * | 2008-10-15 | 2009-03-11 | 马子奇 | Pressure testing downhole oil production screw pump |
| CN203394437U (en) * | 2013-08-07 | 2014-01-15 | 中国石油化工股份有限公司 | Automatic pressure relief and pressure test valve of underground pipe column of oil-water well |
| CN210293914U (en) * | 2019-05-28 | 2020-04-10 | 中国石油天然气股份有限公司 | Sand control is with full tubular column oil pipe pressure testing instrument of safe environment-friendly |
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