High-temperature and high-pressure leaking stoppage instrument capable of adjusting gap

Abstract

The utility model discloses a high-temperature high-pressure leak stoppage instrument capable of adjusting gaps, which comprises an acquisition system, the acquisition system is a host controlled by a single chip microcomputer or a PLC (programmable logic controller), one side of the acquisition system is rotatably connected with a rotating mechanism, the inside of the rotating mechanism is detachably connected with a leak stoppage instrument body, and the other side of the acquisition system is connected with the leak stoppage instrument body. The plugging instrument body is placed in the rotating mechanism, the angle of the rotating mechanism can be adjusted within 0-180 degrees, a gap adjusting space is reserved in the plugging instrument body, a gap can be adjusted within 0-7 mm, the size of the gap is manually adjusted by the plugging instrument body, the size of the gap is displayed through a ruler, a temperature collecting device is arranged in the plugging instrument body, and the temperature collecting device is connected with the rotating mechanism. The temperature acquisition device is connected with the acquisition system through a connecting line, the leakage stoppage instrument body is connected with a cylinder pressure acquisition device A through a pipeline, and the cylinder pressure acquisition device A is connected with the acquisition system through a connecting line.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of leaking stoppage, specifically relates to a high temperature and high pressure leaking stoppage appearance of adjustable gap. BACKGROUND

[0002] Leaking stoppage operation is an important technical measure to solve the well leakage of oil and gas well, and the key to successful implementation of leaking stoppage operation is to clearly master the gap width of the formation fracture of oil and gas well, in order to master the gap width of the formation fracture of oil and gas well before actual leaking stoppage operation, indoor plugging experiment is an important technical means.

[0003] At present, the leaking stoppage appearance commonly used in plugging experiment is a specific gap width leaking stoppage appearance, the simulated gap width of the specific gap width leaking stoppage appearance is fixed at a certain scale, which is usually achieved by filling support materials with different thicknesses in the middle of a profiled core column or replacing a joint with different opening degrees, it can set a very large crack scale, but each experiment can only test a specific gap width, and a plurality of repeated experiments are required for the same set of leaking stoppage drilling fluid system to test the plugging effect, so it can be seen that the experimental process is complex, long, difficult and high in cost, and there is a large error between the test result and the actual situation on site, so it is not accurate and reliable.

[0004] In view of the above factors, the utility model provides a high temperature and high pressure leaking stoppage appearance of adjustable gap, the gap is adjustable within 0-7mm, the gap size can be adjusted manually, and the gap size is read out through a scale. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a high temperature and high pressure leaking stoppage appearance of adjustable gap to solve the problems in the above background technology.

[0006] The utility model aims at providing a high temperature and high pressure leaking stoppage appearance of adjustable gap to solve the problems in the above background technology.

[0007] The gap adjusting space is reserved on the leaking stoppage appearance body, the gap is adjustable within 0-7mm, the leaking stoppage appearance body adjusts the gap size manually, and the gap size is displayed through a scale.

[0008] Further, the temperature acquisition device is connected with the acquisition system through a connecting line.

[0009] The plugging instrument body is connected with a cylinder pressure collector A through a pipeline, and the cylinder pressure collector A is connected with the collection system through a connecting line.

[0010] The plugging instrument body is connected with a rupture pressure collector B through a pipeline, and the rupture pressure collector B is connected with the collection system through a connecting line.

[0011] The plugging instrument body is connected with a formation pressure collector C through a pipeline, and the formation pressure collector C is connected with the collection system through a connecting line.

[0012] Further, the plugging instrument body comprises a slurry cylinder, the upper end of the slurry cylinder is detachably connected with a sealing end, and the lower end of the slurry cylinder is detachably connected with a sealing end.

[0013] The sealing end comprises an intermediate cover and a bottom cover connected with the intermediate cover.

[0014] Further, the bottom cover of the sealing end is provided with a scale, a movable shaft is arranged in the scale, the movable shaft extends towards the intermediate cover and is connected with an annular gap adjusting plug.

[0015] The intermediate cover is provided with a tapered annular gap adjusting space near the slurry cylinder.

[0016] Further, the temperature collection device is a thermal resistance sensor, and the temperature collection device is fixedly or detachably connected in a storage space in the slurry cylinder (31).

[0017] Further, the rotating mechanism is a hollow box structure, and the rotating mechanism is arranged in parallel with the collection system.

[0018] The upper end surface of the rotating mechanism is provided with a fixed end, the fixed end is connected on the end surface of the rotating mechanism through bolts, the fixed end comprises a fixed base and a clamping end movably arranged in the fixed base, the end of the clamping end is wedge-shaped, and the bottom plane of the clamping end is in contact with the sealing end surface.

[0019] Further, the position, where the plugging instrument body contacts with the bottom surface of the rotating mechanism, is connected on the rotating mechanism through a flange plate in a bolted manner.

[0020] The flange plate and the bottom end of the slurry cylinder are connected together in a welded manner.

[0021] Further, the plugging instrument body is connected with a nitrogen source through a connecting pipeline.

[0022] Compared with the prior art, the plugging instrument has the beneficial effects that:

[0023] The leak stoppage instrument can realize the adjustment of the seam width, can realize dynamic adjustment, namely, the seam width is adjustable, and the leak stoppage drilling fluid system, leakage and backflow and plugging effect of the leak stoppage instrument can be tested in a certain seam width change range.

[0024] The utility model discloses can realize seam width adjustable, in the dynamic leak stoppage test, the gap is adjustable in 0-7mm, can pass through manual regulation gap size, and gap size is read out through the scale, can effectively save the artificial cost, has simplified the operation step, has reduced the human disturbance in the experiment process. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the three-dimensional schematic view of the utility model;

[0026] Figure 2 It is the plane schematic view of the utility model;

[0027] Figure 3 It is the leak stoppage instrument body section schematic view of the utility model;

[0028] Figure 4 It is the movable axle and mark connection amplification schematic view of the utility model;

[0029] Figure 5 It is another state section schematic view of the leak stoppage instrument body of the utility model;

[0030] Figure 6 It is the fixed end amplification schematic view of the utility model;

[0031] Figure 7 It is the fixed base / clamping end cooperation schematic view of the utility model;

[0032] Figure 8 It is the principle frame schematic view of the utility model. DETAILED DESCRIPTION

[0033] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of the utility model protection.

[0034] In the description of the utility model, it is necessary to explain that, unless there is explicit provision and limitation, the term "installation", "connection", "connection" should be broad sense, for example, can be fixed connection, can be detachable connection, or integrally connected, can be direct connection, also can be indirectly connected through the intermediate medium. For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0035] In the description of the utility model, it needs to understand that the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relation based on the orientation or position relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0036] As shown in Figures 1-8 A kind of adjustable gap high temperature high pressure leak stopper, including acquisition system 1, the acquisition system 1 is the host computer controlled by single-chip microcontroller or PLC, one side of the acquisition system 1 is rotatably connected with rotating mechanism 2, the rotating mechanism 2 is detachably connected with leak stopper body 3 in, the leak stopper body 3 is placed in rotating mechanism 2, the rotating mechanism 2 can be adjustable in 0-180 ° angle;

[0037] The gap adjustment space is reserved on the leak stopper body 3, and the gap is adjustable within 0-7mm, the leak stopper body 3 is manually adjusted gap size, and the gap size is displayed by scale.

[0038] In order to facilitate the acquisition of corresponding pressure information by pressure collector in the use state, temperature acquisition device 4 is arranged in the leak stopper body 3, and the temperature acquisition device 4 is connected with the acquisition system 1 by connecting line;

[0039] The leak stopper body 3 is connected with cylinder pressure collector A through pipeline, and the cylinder pressure collector A is connected with the acquisition system 1 by connecting line;

[0040] In the use state, cylinder pressure cutoff valve and cylinder pressure regulating valve control pressure are arranged on the pipeline where the cylinder pressure collector A is located.

[0041] The leak stopper body 3 is connected with rupture pressure collector B through pipeline, and the rupture pressure collector B is connected with the acquisition system 1 by connecting line;

[0042] In the use state, rupture pressure cutoff valve and rupture pressure regulating valve control pressure are arranged on the pipeline where the rupture pressure collector B is located.

[0043] The leak stopper body 3 is connected with formation pressure collector C through pipeline, and the formation pressure collector C is connected with the acquisition system 1 by connecting line.

[0044] In the use state, formation pressure cutoff valve and formation pressure regulating valve control pressure are arranged on the pipeline where the formation pressure collector C is located.

[0045] In order to facilitate the plugging of the lost circulation layer by the plugging instrument body 3 in use, the plugging instrument body 3 comprises a slurry cylinder 31, the upper end of the slurry cylinder 31 is detachably connected with a plugging 32, and the lower end of the slurry cylinder 31 is detachably connected with a plugging end 33.

[0046] The plugging end 33 comprises an intermediate cover 34 and a bottom cover 35 connected with the intermediate cover 34.

[0047] The slurry cylinder 31, the plugging 32 and the plugging end 33 are detachably connected by threads.

[0048] In order to facilitate the free adjustment of the gap width by the annular gap adjusting plug 37 in use, the bottom cover 35 of the plugging end 33 is provided with a scale, the scale is provided with a movable shaft 36 penetrating therein, the movable shaft 36 extends to the intermediate cover 34 and is connected with the annular gap adjusting plug 37.

[0049] The bottom cover 35 of the plugging end 33 is provided with a scale, the scale is a frame structure, the movable shaft is provided with an adjusting nut at the connection position with the scale, and in use, the adjusting nut is matched with the movable shaft to control the lifting of the movable shaft.

[0050] The intermediate cover 34 is provided with a tapered annular gap adjusting space near the slurry cylinder 31.

[0051] The up and down movement of the annular gap adjusting plug 37 adjusts the gap within 0-7mm, the size of the gap can be manually adjusted, and the size of the gap is displayed and read by the scale.

[0052] In order to monitor the temperature value of the slurry cylinder in real time by the temperature collecting device 4 in use, the temperature collecting device 4 is a thermal resistance sensor, and the temperature collecting device 4 is fixedly or detachably connected in the storage space formed in the slurry cylinder 31.

[0053] In order to facilitate the cooperative rotation of the slurry cylinder and the rotating mechanism in use according to different use states, the rotating mechanism 2 controls the slurry cylinder to rotate, the angle of the rotating mechanism can be adjusted within 0-180°, the rotating mechanism 2 is a hollow box structure, and the rotating mechanism 2 is arranged in parallel with the collecting system 1.

[0054] The upper end surface of the rotating mechanism 2 is provided with a fixed end 5, the fixed end 5 is connected on the end surface of the rotating mechanism 2 by bolts, the fixed end 5 comprises a fixed base 51 and a clamping end 52 movably arranged in the fixed base 51, the end of the clamping end 52 is wedge-shaped, and the bottom plane of the clamping end 52 is in contact with the end surface of the plugging 32.

[0055] The clamping end 52 in the fixed base 51 can move in the cavity of the fixed base 51, and a through hole is arranged on the end face of the fixed base 51 and is matched with a plurality of pin shaft holes arranged on the end face of the clamping end 52, and a pin is inserted and fixed in the through hole and the pin shaft hole

[0056] The clamping end 52 can move in the fixed base 51.

[0057] The contact position of the plugging instrument body 3 and the bottom surface of the rotating mechanism 2 is connected to the rotating mechanism 2 by the flange plate in a bolted manner.

[0058] The flange plate and the bottom end of the slurry cylinder 31 are connected together in a welded manner.

[0059] The plugging instrument body 3 is connected with a nitrogen source through a connecting pipeline.

[0060] The slurry cylinder is placed in the rotating mechanism, the rotating mechanism is adjustable in an angle of 0-180°, the gap is adjustable in 0-7mm during dynamic plugging test, the gap size can be adjusted manually, and the gap size is read out through a scale.

[0061] During static plugging test, the conical connecting rod can be replaced by a joint plate of different specifications and sizes to perform static plugging test.

[0062] In the use state, the pipeline assembly is installed on the nitrogen cylinder (nitrogen source), is fastened by a nut, the pressure gauge in the middle of the pipeline displays a pressure of ≥7MPa when the gas source is opened, and the pipeline and the corresponding parts of the gas source joint are connected firmly.

[0063] The rotating movable shaft reaches the expected gap width value, the plugging fluid containing test materials is poured into the plugging slurry cylinder, the temperature controller collects the current temperature value and displays the temperature value on the touch display screen of the collection system, the temperature alarm value of the temperature controller required by the experiment is set through the touch display screen,

[0064] The pressure sensor collects the current pressure value (cylinder, rupture, formation pressure) and displays the pressure value on the touch display screen of the collection system, the sealing pressure value can be set through the touch display screen of the collection system, the current pressure value of the observation display screen is observed until the pressure value is reached, the volume of the discharged drilling fluid is recorded, and the minimum pressure at which plugging may occur is observed and recorded.

[0065] Until the drilling fluid in the slurry cylinder is exhausted, the volume of the discharged drilling fluid and the maximum pressure reached are recorded, if the plugging is successful, the pressure is maintained for 10 minutes, and the final volume of the drilling fluid is recorded.

[0066] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0067] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. An adjustable gap high temperature and high pressure leak stoppage instrument, comprising a collection system (1), the collection system (1) is a host controlled by a single-chip microcomputer or a PLC, characterized in that: One side of the collection system (1) is rotatably connected with a rotating mechanism (2), the rotating mechanism (2) is detachably connected with a plugging instrument body (3), the plugging instrument body (3) is placed in the rotating mechanism (2), and the rotating mechanism (2) is angle-adjustable within 0-180°. A gap adjusting space is reserved on the plugging instrument body (3), the gap is adjustable within 0-7mm, and the gap size is displayed through a scale.

2. The adjustable slot high temperature high pressure packer of claim 1, wherein: The plugging instrument body (3) is provided with a temperature collecting device (4), and the temperature collecting device (4) is connected with the collection system (1) through a connecting line. The plugging instrument body (3) is connected with a cylinder pressure collector A through a pipeline, and the cylinder pressure collector A is connected with the collection system (1) through a connecting line. The plugging instrument body (3) is connected with a rupture pressure collector B through a pipeline, and the rupture pressure collector B is connected with the collection system (1) through a connecting line. The plugging instrument body (3) is connected with a formation pressure collector C through a pipeline, and the formation pressure collector C is connected with the collection system (1) through a connecting line.

3. The adjustable slit high temperature high pressure packer of claim 2, wherein: The plugging instrument body (3) comprises a slurry cylinder (31), the upper end of the slurry cylinder (31) is detachably connected with a sealing (32), and the lower end of the slurry cylinder (31) is detachably connected with a sealing end (33). The sealing end (33) comprises an intermediate cover (34) and a bottom cover (35) connected with the intermediate cover (34).

4. The adjustable slit high temperature high pressure packer of claim 3, wherein: The bottom cover (35) of the sealing end (33) is provided with a scale, the scale is provided with a movable shaft (36) penetrating through the scale, the movable shaft (36) extends to the intermediate cover (34) and is connected with an annular gap adjusting plug (37). The intermediate cover (34) is provided with a tapered annular gap adjusting space near the slurry cylinder (31).

5. The adjustable slit high temperature high pressure packer of claim 4, wherein: The temperature collecting device (4) is a thermal resistance sensor, and the temperature collecting device (4) is fixedly or detachably connected in a storage space formed in the slurry cylinder (31).

6. The adjustable slit high temperature high pressure packer of claim 5, wherein: The rotating mechanism (2) is a hollow box structure, and the rotating mechanism (2) is arranged in parallel with the collection system (1). The upper end surface of the rotating mechanism (2) is provided with a fixed end (5), the fixed end (5) is connected to the end surface of the rotating mechanism (2) through bolts, the fixed end (5) comprises a fixed base (51) and a clamping end (52) movably arranged in the fixed base (51), the end of the clamping end (52) is wedge-shaped, and the bottom plane of the clamping end (52) is in contact with the end surface of the sealing (32).

7. The adjustable slit high temperature high pressure packer of claim 6, wherein: The position where the plugging instrument body (3) contacts the bottom surface of the rotating mechanism (2) is connected to the rotating mechanism (2) by a flange plate in a bolted manner. The flange plate and the bottom end of the slurry cylinder (31) are connected together in a welded manner.

8. The adjustable slit high temperature high pressure packer of claim 7, wherein: The plugging instrument body (3) is connected with a nitrogen source through a connecting pipeline.

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