CN112326489B - Test device and test method for simulating erosion in harsh drilling environment - Google Patents
Test device and test method for simulating erosion in harsh drilling environment Download PDFInfo
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- CN112326489B CN112326489B CN202011212682.4A CN202011212682A CN112326489B CN 112326489 B CN112326489 B CN 112326489B CN 202011212682 A CN202011212682 A CN 202011212682A CN 112326489 B CN112326489 B CN 112326489B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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Abstract
The invention relates to the performance of drill collar materialsThe invention belongs to the field of testing, and particularly relates to a test device for simulating erosion in a severe drilling environment and a test method thereof. This device is adaptable to present most model drilling rod and detects to can carry out different operational environment's simulation according to the demand, realize carrying out the simulation experiment with the environment that operating condition is the same, accomplish one-to-one reduction, and this testing machine can occupy the space less, need not go to detect on the spot, the waste of the manpower resources that significantly reduces, through the loading to the drilling rod and to erosion liquid velocity of flow and erosion liquid in Cl‑The mixture ratio of the oil-water mixture is used for simulating various severe drilling environments so as to ensure the reliable performance of products. The device is connected with a computer through a torque rotating speed sensor, monitors a driving motor (105) in real time, feeds back the torque borne by the drill rod in real time, presses the drill rod according to experimental requirements, and further simulates a real harsh drilling environment.
Description
Technical Field
The invention relates to the field of performance test of drill collar materials, in particular to a test device and a test method for simulating erosion in a harsh drilling environment.
Background
With the strategic demand of exploration and development of oil and gas resources, the drilling technology of deep wells, ultra-deep wells and ultra-deep wells is the guarantee for realizing exploration and development of oil and gas resources in deep strata, and the exploration and development of deep ultra-deep wells provide higher requirements for the service performance of materials for drilling machines, such as greater challenges for the performances of abrasion (caused by different rock stratum characteristics), fatigue fracture (torsion, compression, centrifugal force, dynamic load and the like), corrosion (stress corrosion fracture, intergranular corrosion, uniform corrosion, electrochemical corrosion, wind corrosion, erosion, crack corrosion and the like) and the like of the drilling machines. The drill rod is an important component of a drill string in the deep ultra-deep oil and gas drilling process, wherein corrosion and abrasion are main factors causing failure and damage of drill collar materials. According to statistics, drilling tool accidents happen hundreds of times every year in China, wherein the drill rod is in failure, the occupation ratio is large, and the economic loss reaches hundreds of millions of yuan. The drill rod is broken and fails in the construction of the ultra-deep complex geological environment, and a major accident is directly caused to cause major economic loss.
However, most of the research development processes need to be performed with related tests, and the test difficulty is high due to various factors such as complex and uncontrollable outdoor environment, site limitation and the like in a natural environment. Most of the existing equipment carries out erosion detection on a drill rod with a single model, and the simulation of the actual drilling environment is inconsistent, so that the design of an erosion test device for multiple harsh drilling environments is extremely important.
Disclosure of Invention
In order to solve the above problems, the first aspect of the present invention provides a test device for simulating the erosion in a harsh drilling environment, which comprises a driving part, an erosion detecting part and a general control part from top to bottom;
the driving part comprises a driving motor, a telescopic rod and a drill rod head fixing part from top to bottom;
the erosion detection part comprises an equipment erosion box body and an equipment sealing cover, an equipment sealing door is arranged on the side face of the equipment erosion box body, a liquid inlet U-shaped pipe is arranged above the equipment erosion box body and is positioned in a cavity formed by the equipment sealing cover and the equipment erosion box body, the lower part of the liquid inlet U-shaped pipe is connected with an erosion spray head through an erosion guide pipe, and a slurry mixed liquid inlet and a clear water inlet are formed in the equipment sealing cover;
the mud liquid centralizing tank and the water tank are arranged in the master control part, the liquid outlet is arranged above the master control part, and the liquid outlet is positioned above the water tank.
According to a preferable technical scheme of the invention, a sleeve is sleeved outside the telescopic rod, the sleeve is installed in an inner ring of a bearing inside a central hole of a sealing cover of equipment, a fixed support is arranged on the side surface of the driving motor, and the fixed support moves up and down through a movable guide rail.
As a preferable technical solution of the present invention, the liquid inlet U-shaped pipe and the erosion guide pipe are connected by an extension pipe, and the extension pipe is clamped on the guide pipe moving guide rail.
As a preferable technical scheme of the invention, 3-20 scales are arranged on the guide pipe moving guide rail.
As a preferred technical solution of the present invention, the erosion nozzle is provided with an erosion flow parameter controller.
As a preferable technical scheme of the invention, the upper part of the master control part is provided with a concave part, the liquid outlet is positioned in the concave part, and the angle of downward inclination of the concave part towards the liquid outlet direction is 3-10 degrees.
As a preferable technical scheme of the invention, a filter plate is arranged between the liquid outlet and the water tank.
As a preferable technical scheme of the invention, a chuck is arranged in the center above the main control part.
As a preferable technical scheme, an experiment parameter table is arranged outside the master control part, and parameters displayed on the experiment parameter table comprise the moving distance of the telescopic rod relative to the equipment sealing cover, equipment voltage, equipment current, equipment resistance, the water level of the slurry mixed liquid concentration tank and the water level of the water tank.
The second aspect of the present invention provides a testing method of the testing apparatus for simulating the erosive testing of a harsh drilling environment, including the following steps:
(1) opening an equipment sealing door on the equipment erosion box body, lifting a telescopic rod, screwing a drill rod into the drill rod head fixing part, adjusting the position of the telescopic rod, and closing the equipment sealing door after installing an erosion nozzle on an erosion guide pipe;
(2) pouring etching liquid into the slurry mixed liquid concentrated tank, pouring water into the water tank, closing the clear water liquid inlet, starting the driving motor, opening the slurry mixed liquid inlet, enabling the etching liquid in the slurry mixed liquid concentrated tank to enter the erosion guide pipe through the liquid inlet U-shaped pipe and be sprayed out from the erosion spray head, and carrying out an erosion experiment, wherein the etching liquid returns to the slurry mixed liquid concentrated tank through the liquid outlet and is recycled;
(3) and after the erosion experiment is finished, closing the slurry mixed liquid inlet and the driving motor, and opening the clear water inlet, so that the water in the water tank is sprayed out from the erosion spray head through the clear water inlet and returns to the water tank through the liquid outlet for circular cleaning.
(4) And opening the sealing door of the equipment after cleaning, and taking out the drill rod.
Compared with the prior art, the invention has the following beneficial effects:
(1) this device is adaptable to present most model drilling rod and detects to can carry out different operational environment's simulation according to the demand, realize carrying out the simulation experiment with the environment that operating condition is the same, accomplish one-to-one reduction, and this testing machine can occupy the space less, need not go to detect on the spot, the waste of the manpower resources that significantly reduces, through the loading to the drilling rod and to erosion liquid velocity of flow and erosion liquid in Cl-The mixture ratio of the oil-water mixture is used for simulating various severe drilling environments so as to ensure the reliable performance of products.
(2) The device is connected with a computer through a torque rotating speed sensor, monitors a driving motor (105) in real time, feeds back the torque borne by the drill rod in real time, presses the drill rod according to experimental requirements, and further simulates a real harsh drilling environment.
(3) The device can replace the erosion nozzle according to the requirements of erosion liquid and flow, the guide pipe moving guide rail is arranged to be divided into a plurality of scales, and the larger the number is, the farther the guide pipe moving guide rail is from the central position, so that various harsh drilling environments can be simulated.
(4) This device is equipped with the sunk part of certain angle through total control part upper portion, can promote the discharge of erosion liquid and clear water in the experimentation, and through set up the filter between liquid outlet and basin, can change according to the erosion liquid difference, and the erosion liquid flows down the back from the liquid outlet and passes through the filter, can filter the entering basin, and all the other mud that get into mixes liquid concentrated groove, recycles easy operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a detecting device according to the present invention;
FIG. 2 is a schematic view of a driving part;
FIG. 3 is a schematic structural view of an erosion detecting portion;
FIG. 4 is a schematic view of the water piping structure of FIG. 3;
FIG. 5 is a schematic structural diagram of the overall control part;
fig. 6 is a detailed schematic view of the sink of fig. 5.
The device comprises a driving part 1, an erosion detection part 2, a master control part 3, a drill rod head fixing part 101, an expansion link 102, a sleeve 103, a torque and rotation speed sensor 104, a driving motor 105, a movable guide rail 106, a fixed support 107, a device sealing door 201, a device sealing cover 202, a slurry mixed liquid inlet 203, a clear water inlet 204, a device erosion box 205, an erosion spray nozzle 206, an erosion flow parameter controller 207, an erosion guide pipe 208, a guide pipe movable guide rail 209, an extension pipe 210, a liquid inlet U-shaped pipe 211, a guide pipe supporting cover 212, an experiment parameter table 301, a chuck 302, a liquid outlet 303, a slurry mixed liquid concentration tank 304, a water tank 305 and a filter plate 306.
Detailed Description
The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.
The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.
In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention is illustrated by the following specific embodiments, but is not limited to the specific examples given below.
The invention provides a test device for simulating the erosion of a harsh drilling environment, which comprises a driving part, an erosion detection part and a total control part from top to bottom.
Driving part
In one embodiment, the driving part comprises a driving motor, a telescopic rod and a drill rod head fixing part from top to bottom. In one embodiment, a torque and rotation speed sensor is arranged below the driving motor. The driving motor drives the drill rod to rotate, the torque and rotation speed sensor can be connected with a computer and monitors the driving motor in real time to control the rotation speed, feed back the torque applied to the drill rod in real time, and apply pressure to the drill rod according to the experiment requirements to perform corresponding adjustment.
In one embodiment, a sleeve is sleeved outside the telescopic rod and is installed in a bearing inner ring inside a central hole of a sealing cover of the equipment, a fixed support is arranged on the side face of the driving motor, and the fixed support moves up and down through a movable guide rail. The sleeve is arranged outside the telescopic rod, so that the telescopic rod can be adjusted up and down, when the telescopic rod moves up and down, the sleeve moves up and down in the sleeve, the sleeve cannot move, after the equipment is opened, the sleeve can rotate together with the equipment, and in the process of fixing and installing the drill rod, the driving part is controlled to move up and down in the movable guide rail according to the length of the drill rod, so that the test requirements of various types of drill rods are met.
Erosion detection section
In one embodiment, the erosion detection part comprises an equipment erosion box body and an equipment sealing cover, an equipment sealing door is arranged on the side face of the equipment erosion box body, a liquid inlet U-shaped pipe is arranged above the equipment erosion box body and is located in a cavity formed by the equipment sealing cover and the equipment erosion box body, an erosion spray head is connected to the lower portion of the liquid inlet U-shaped pipe through an erosion guide pipe, and a slurry mixed liquid inlet and a clear water inlet are formed in the equipment sealing cover. The slurry mixed liquid inlet and the clear water inlet are internally provided with corresponding on-off switches, erosion experiments are carried out according to the experiment types under the control of a computer, and clear water washing is required after each experiment. In the erosion detection part, the erosion guide pipe is a replaceable part and is changed according to different drill pipe models, the erosion guide pipe is provided with the erosion nozzle, and the erosion guide pipe can be replaced according to the requirements of erosion liquid and flow, so that various harsh drilling environments can be simulated. In one embodiment, a plurality of erosion nozzles are provided on each erosion pipe. In one embodiment, the number of the erosion guide pipes is 2-5, and the number of the erosion nozzles on each erosion guide pipe is 1-5.
In one embodiment, a conduit supporting cover is arranged between the equipment sealing cover and the equipment erosion box body, and the liquid inlet U-shaped pipe is positioned on the conduit supporting cover.
In one embodiment, the liquid inlet U-shaped pipe and the erosion guide pipe are connected through an extension pipe, and the extension pipe is clamped on a guide pipe moving guide rail. And the applicant sets the derivative tube which can move in the clamping groove of the guide tube moving guide rail, wherein the guide tube moving guide rail comprises a plurality of scales, and the larger the number is, the farther the derivative tube is away from the center of the equipment erosion box body. In one embodiment, the guide tube moving guide rail is provided with a plurality of scales. In one embodiment, the guide tube moving guide rail is provided with 3 to 20 scales. There may be mentioned, for example, 3, 5, 15 and 20.
In one embodiment, the erosion nozzle is provided with an erosion flow parameter controller. The erosion flow parameter controller can set the flow of the erosion liquid and determine whether the erosion liquid extends downwards according to experimental requirements.
In one embodiment, the slurry mixed liquid inlet and the clear water inlet are respectively positioned above two ends of the liquid inlet U-shaped pipe.
Total control part
In one embodiment, a slurry liquid concentration groove and a water groove are arranged in the master control part, and a liquid outlet is arranged above the master control part and is positioned above the water groove. In one embodiment, the water tank and the slurry mixed liquor concentration tank are respectively connected with the clear water inlet and the slurry mixed liquor inlet. The applicant realizes the recycling of the clean water and the etching liquid by connecting the water tank with the clean water liquid inlet and connecting the slurry mixed liquid concentration tank with the slurry mixed liquid inlet.
In one embodiment, the upper part of the main control part is provided with a concave part, the liquid outlet is positioned in the concave part, and the angle of the downward inclination of the concave part to the direction of the liquid outlet is 3-10 degrees. The angle of inclination is the angle at which the concave portion is inclined relative to the horizontal, and the applicant has found that by angling the concave portion towards the liquid outlet, drainage of water and etching liquid is facilitated.
In one embodiment, a filter plate is disposed between the liquid outlet and the water tank. Through setting up the filter between liquid outlet and basin, can change according to the erosion liquid difference, the erosion liquid flows down the back from the liquid outlet and through the filter, can filter and get into the basin, and all the other mud mixture solution centralization tank that get into carries out recycle, easy operation. In one embodiment, the filter plate is inclined downward toward the slurry mixture collecting tank.
In one embodiment, a chuck is centrally located above the overall control portion. The chuck is used for fixing the lower end of the drill rod in the experimental process.
In one embodiment, an experimental parameter table is arranged outside the master control part, and parameters displayed on the experimental parameter table comprise the moving distance of the telescopic rod relative to the equipment sealing cover, equipment voltage, equipment current, equipment resistance, the slurry mixed liquid concentration tank water level and the water tank water level.
In a second aspect, the invention provides a test method of the test device for simulating the erosion test of the harsh drilling environment, which comprises the following steps:
(1) opening an equipment sealing door on the equipment erosion box body, lifting a telescopic rod, screwing a drill rod into the drill rod head fixing part, adjusting the position of the telescopic rod, and closing the equipment sealing door after installing an erosion nozzle on an erosion guide pipe;
(2) pouring etching liquid into the slurry mixed liquid concentrated tank, pouring water into the water tank, closing the clear water liquid inlet, starting the driving motor, opening the slurry mixed liquid inlet, enabling the etching liquid in the slurry mixed liquid concentrated tank to enter the erosion guide pipe through the liquid inlet U-shaped pipe and be sprayed out from the erosion spray head, and carrying out an erosion experiment, wherein the etching liquid returns to the slurry mixed liquid concentrated tank through the liquid outlet and is recycled;
(3) and after the erosion experiment is finished, closing the slurry mixed liquid inlet and the driving motor, and opening the clear water inlet, so that the water in the water tank is sprayed out from the erosion spray head through the clear water inlet and returns to the water tank through the liquid outlet for circular cleaning.
(4) And opening the sealing door of the equipment after cleaning, and taking out the drill rod.
In one embodiment, in the step (1), the equipment sealing door on the equipment erosion box is opened, the fixed support for fixing the driving motor is controlled to ascend along the movable guide rail, the telescopic rod is driven to move upwards, the telescopic rod is driven to move downwards after the drill rod is screwed into the drill rod head fixing part, the lower end of the drill rod is driven to contact the chuck and is clamped by the chuck, the position of the telescopic rod is adjusted, and the equipment sealing door is closed after the erosion nozzle is arranged on the erosion guide pipe.
In one embodiment, in the step (2), the etching solution is poured into the slurry mixed solution concentration tank, water is poured into the water tank, the clear water inlet is closed, the driving motor is started, the slurry mixed solution inlet is opened, the etching solution in the slurry mixed solution concentration tank enters the erosion guide pipe through the liquid inlet U-shaped pipe and is sprayed out from the erosion nozzle, an erosion experiment is performed, monitoring is performed through the torque rotation speed sensor and the erosion flow coefficient controller, parameter information is displayed in the experiment parameter table, and the etching solution returns to the slurry mixed solution concentration tank after passing through the liquid outlet and the filter plate and is recycled.
In one embodiment, in the step (3), after the erosion experiment is finished, the slurry mixed liquid inlet and the driving motor are closed, and the clear water inlet is opened, so that water in the water tank is sprayed out from the erosion nozzle through the clear water inlet, passes through the liquid outlet and the filter plate, returns to the water tank, and is circularly cleaned.
Exemplary embodiments will now be described in more detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 6, the present embodiment provides a test apparatus for simulating erosion in a harsh drilling environment, which includes, from top to bottom, a driving portion 1, an erosion detecting portion 2, and a general control portion 3;
the driving part 1 comprises a driving motor 105, an expansion link 102 and a drill rod head fixing part 101 from top to bottom, a torque and rotating speed sensor 104 is arranged below the driving motor 105, a sleeve 103 is sleeved outside the expansion link 102, the sleeve 103 is installed in an inner bearing ring inside a central hole of an equipment sealing cover 202, a fixing support 107 is arranged on the side surface of the driving motor 105, and the fixing support 107 moves up and down through a movable guide rail 106;
the erosion detection part 2 comprises an equipment erosion box body 205 and an equipment sealing cover 202, an equipment sealing door 201 is arranged on the side surface of the equipment erosion box body 205, a liquid inlet U-shaped pipe 211 is arranged above the equipment erosion box body 205, the liquid inlet U-shaped pipe 211 is positioned in a cavity formed by the equipment sealing cover 202 and the equipment erosion box body 205, the lower part of the liquid inlet U-shaped pipe 211 is connected with an erosion spray nozzle 206 through an erosion guide pipe 208, a slurry mixed liquid inlet 203 and a clear water inlet 204 are arranged on the equipment sealing cover 202, the liquid inlet U-shaped pipe 211 is connected with the erosion guide pipe 208 through an extension pipe 210, the extension pipe 210 is clamped on a guide pipe moving guide rail 209, 15 scales are arranged on the guide pipe moving guide rail 209, an erosion flow parameter controller 207 is arranged on the erosion spray nozzle 206, the slurry mixed liquid inlet 203 and the clear water inlet 204 are respectively positioned above two ends of the liquid inlet U-shaped pipe 211, a conduit supporting cover 212 is arranged between the equipment sealing cover 202 and the equipment erosion box 205, and the liquid inlet U-shaped pipe 211 is positioned on the conduit supporting cover 212;
a slurry liquid collecting groove 304 and a water groove 305 are arranged in the main control part 3, a liquid outlet 303 is arranged above the main control part 3, the liquid outlet 303 is positioned above the water tank 304, the water tank 304 and the slurry mixed liquid concentration tank 304 are respectively connected with the clean water inlet 204 and the slurry mixed liquid inlet 203, the upper part of the main control part 3 is provided with a concave part, the liquid outlet 303 is positioned at the concave part, the angle of the downward inclination of the concave part towards the liquid outlet 303 is 8 degrees, a filter plate 306 is arranged between the liquid outlet 303 and the water tank 305, a chuck plate 302 is arranged at the center above the main control part 3, the outside of the master control part 3 is provided with an experimental parameter table 301, and parameters displayed on the experimental parameter table 301 comprise the moving distance of the telescopic rod relative to the sealing cover of the equipment, the equipment voltage, the equipment current, the equipment resistance, the water level of the slurry mixed liquid centralized tank and the water level of the water tank.
Example 2
As shown in fig. 1 to 6, the present embodiment provides a test apparatus for simulating erosion in a harsh drilling environment, which includes, from top to bottom, a driving portion 1, an erosion detecting portion 2, and a general control portion 3;
the driving part 1 comprises a driving motor 105, an expansion link 102 and a drill rod head fixing part 101 from top to bottom, a torque and rotating speed sensor 104 is arranged below the driving motor 105, a sleeve 103 is sleeved outside the expansion link 102, the sleeve 103 is installed in an inner bearing ring inside a central hole of an equipment sealing cover 202, a fixing support 107 is arranged on the side surface of the driving motor 105, and the fixing support 107 moves up and down through a movable guide rail 106;
the erosion detection part 2 comprises an equipment erosion box body 205 and an equipment sealing cover 202, an equipment sealing door 201 is arranged on the side surface of the equipment erosion box body 205, a liquid inlet U-shaped pipe 211 is arranged above the equipment erosion box body 205, the liquid inlet U-shaped pipe 211 is positioned in a cavity formed by the equipment sealing cover 202 and the equipment erosion box body 205, the lower part of the liquid inlet U-shaped pipe 211 is connected with an erosion spray nozzle 206 through an erosion guide pipe 208, a slurry mixed liquid inlet 203 and a clear water inlet 204 are arranged on the equipment sealing cover 202, the liquid inlet U-shaped pipe 211 is connected with the erosion guide pipe 208 through an extension pipe 210, the extension pipe 210 is clamped on a guide pipe moving guide rail 209, 3 scales are arranged on the guide pipe moving guide rail 209, an erosion flow parameter controller 207 is arranged on the erosion spray nozzle 206, the slurry mixed liquid inlet 203 and the clear water inlet 204 are respectively positioned above two ends of the liquid inlet U-shaped pipe 211, a conduit supporting cover 212 is arranged between the equipment sealing cover 202 and the equipment erosion box 205, and the liquid inlet U-shaped pipe 211 is positioned on the conduit supporting cover 212;
a slurry liquid collecting groove 304 and a water groove 305 are arranged in the main control part 3, a liquid outlet 303 is arranged above the main control part 3, the liquid outlet 303 is positioned above the water tank 304, the water tank 304 and the slurry mixed liquid concentration tank 304 are respectively connected with the clean water inlet 204 and the slurry mixed liquid inlet 203, the upper part of the main control part 3 is provided with a concave part, the liquid outlet 303 is positioned at the concave part, the angle of the downward inclination of the concave part towards the liquid outlet 303 is 3 degrees, a filter plate 306 is arranged between the liquid outlet 303 and the water tank 305, a chuck plate 302 is arranged at the center above the main control part 3, the outside of the master control part 3 is provided with an experimental parameter table 301, and parameters displayed on the experimental parameter table 301 comprise the moving distance of the telescopic rod relative to the sealing cover of the equipment, the equipment voltage, the equipment current, the equipment resistance, the water level of the slurry mixed liquid centralized tank and the water level of the water tank.
Example 3
As shown in fig. 1 to 6, the present embodiment provides a test apparatus for simulating erosion in a harsh drilling environment, which includes, from top to bottom, a driving portion 1, an erosion detecting portion 2, and a general control portion 3;
the driving part 1 comprises a driving motor 105, an expansion link 102 and a drill rod head fixing part 101 from top to bottom, a torque and rotating speed sensor 104 is arranged below the driving motor 105, a sleeve 103 is sleeved outside the expansion link 102, the sleeve 103 is installed in an inner bearing ring inside a central hole of an equipment sealing cover 202, a fixing support 107 is arranged on the side surface of the driving motor 105, and the fixing support 107 moves up and down through a movable guide rail 106;
the erosion detection part 2 comprises an equipment erosion box body 205 and an equipment sealing cover 202, an equipment sealing door 201 is arranged on the side surface of the equipment erosion box body 205, a liquid inlet U-shaped pipe 211 is arranged above the equipment erosion box body 205, the liquid inlet U-shaped pipe 211 is positioned in a cavity formed by the equipment sealing cover 202 and the equipment erosion box body 205, the lower part of the liquid inlet U-shaped pipe 211 is connected with an erosion spray nozzle 206 through an erosion guide pipe 208, a slurry mixed liquid inlet 203 and a clear water inlet 204 are arranged on the equipment sealing cover 202, the liquid inlet U-shaped pipe 211 is connected with the erosion guide pipe 208 through an extension pipe 210, the extension pipe 210 is clamped on a guide pipe moving guide rail 209, 20 scales are arranged on the guide pipe moving guide rail 209, an erosion flow parameter controller 207 is arranged on the erosion spray nozzle 206, the slurry mixed liquid inlet 203 and the clear water inlet 204 are respectively positioned above two ends of the liquid inlet U-shaped pipe 211, a conduit supporting cover 212 is arranged between the equipment sealing cover 202 and the equipment erosion box 205, and the liquid inlet U-shaped pipe 211 is positioned on the conduit supporting cover 212;
a slurry liquid collecting groove 304 and a water groove 305 are arranged in the main control part 3, a liquid outlet 303 is arranged above the main control part 3, the liquid outlet 303 is positioned above the water tank 304, the water tank 304 and the slurry mixed liquid concentration tank 304 are respectively connected with the clean water inlet 204 and the slurry mixed liquid inlet 203, the upper part of the main control part 3 is provided with a concave part, the liquid outlet 303 is positioned at the concave part, the angle of the downward inclination of the concave part towards the liquid outlet 303 is 10 degrees, a filter plate 306 is arranged between the liquid outlet 303 and the water tank 305, a chuck plate 302 is arranged at the center above the main control part 3, the outside of the master control part 3 is provided with an experimental parameter table 301, and parameters displayed on the experimental parameter table 301 comprise the moving distance of the telescopic rod relative to the sealing cover of the equipment, the equipment voltage, the equipment current, the equipment resistance, the water level of the slurry mixed liquid centralized tank and the water level of the water tank.
Example 4
As shown in fig. 1 to 6, the present embodiment further provides a test method of the device for simulating erosion test in harsh drilling environment provided in embodiments 1 to 3, including the following steps:
selecting a phi 63.5 geological alloy drill rod, starting the device, opening the equipment sealing door 201, lifting the fixed support 107 to the highest position, replacing the corresponding drill rod head fixed part 101, hoisting the drill rod, screwing the drill rod head fixed part 101 into the fixed support 107, descending the fixed support 107 to the bottom of the chuck 302 after screwing, adjusting the center of a shaft and clamping, adjusting the length of the erosion guide pipe 208, moving the erosion guide pipe to the position of scale 2 of the guide pipe moving guide rail 209, replacing the erosion nozzle 206 into a small-aperture nozzle, closing the equipment sealing door 201 after detecting the error, connecting the torque rotating speed sensor 104, pouring the configured etching liquid into the slurry mixed liquid collecting tank 304 after the connection is successfully displayed by a computer, replacing the inspection filter plate 306, pouring proper clear water into the water tank 305, closing a valve above the clear water inlet 204, opening a valve above the slurry mixed liquid inlet 203 to pre-start the driving motor 105, detecting whether the torque rotating speed sensor 104 works normally or not, setting parameters after displaying normal, rotating speed of 600 r/min, detecting torque feedback data in real time, recording in real time by a computer, and setting flow by the erosion flow parameter controllerIs 28m3And/s, carrying out the experiment for 50 minutes, closing a valve above the slurry mixed liquid inlet 203 after the experiment is finished, opening a valve above the clear water inlet 204, cleaning for 3 minutes, opening the equipment sealing door 201 after the experiment is finished, taking out the test drill rod, exporting data and closing the equipment.
The foregoing examples are merely illustrative and serve to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.
Claims (6)
1. A simulation rigor drilling environment erosion test device is characterized by comprising a driving part, an erosion detection part and a main control part from top to bottom;
the driving part comprises a driving motor, a telescopic rod and a drill rod head fixing part from top to bottom;
the erosion detection part comprises an equipment erosion box body and an equipment sealing cover, an equipment sealing door is arranged on the side face of the equipment erosion box body, a liquid inlet U-shaped pipe is arranged above the equipment erosion box body and is positioned in a cavity formed by the equipment sealing cover and the equipment erosion box body, the lower part of the liquid inlet U-shaped pipe is connected with an erosion spray head through an erosion guide pipe, and a slurry mixed liquid inlet and a clear water inlet are formed in the equipment sealing cover;
a mud liquid concentration groove and a water groove are arranged in the master control part, a liquid outlet is arranged above the master control part, and the liquid outlet is positioned above the water groove;
the telescopic rod is sleeved with a sleeve, the sleeve is installed in an inner ring of a bearing in a central hole of a sealing cover of the equipment, a fixed support is arranged on the side face of the driving motor, and the fixed support moves up and down through a movable guide rail;
the liquid inlet U-shaped pipe is connected with the erosion guide pipe through an extension pipe, and the extension pipe is clamped on the guide pipe moving guide rail;
the upper part of the main control part is provided with a concave part, the liquid outlet is positioned in the concave part, and the angle of downward inclination of the concave part to the direction of the liquid outlet is 3-10 degrees;
and a filter plate is arranged between the liquid outlet and the water tank.
2. The device for simulating the erosive testing of the harsh drilling environment according to claim 1, wherein the guide pipe moving guide rail is provided with 3-20 scales.
3. The apparatus for simulating severe drilling environment erosion test according to claim 1, wherein the erosion nozzle is provided with an erosion flow parameter controller.
4. The device for simulating the erosive test in the severe drilling environment according to any one of claims 1-3, wherein a chuck is arranged in the center above the main control part.
5. The apparatus for simulating erosive testing in a severe drilling environment according to claim 4, wherein an experimental parameter table is provided outside the master control part, and parameters displayed on the experimental parameter table include a moving distance of the telescopic rod relative to the sealing cover of the apparatus, an apparatus voltage, an apparatus current, an apparatus resistance, a slurry mixture concentrated tank water level, and a water tank water level.
6. A test method of the device for simulating the erosion test of the harsh drilling environment according to any one of claims 1 to 5, characterized by comprising the following steps:
(1) opening an equipment sealing door on the equipment erosion box body, lifting a telescopic rod, screwing a drill rod into the drill rod head fixing part, adjusting the position of the telescopic rod, and closing the equipment sealing door after installing an erosion nozzle on an erosion guide pipe;
(2) pouring etching liquid into the slurry mixed liquid concentrated tank, pouring water into the water tank, closing the clear water liquid inlet, starting the driving motor, opening the slurry mixed liquid inlet, enabling the etching liquid in the slurry mixed liquid concentrated tank to enter the erosion guide pipe through the liquid inlet U-shaped pipe and be sprayed out from the erosion spray head, and carrying out an erosion experiment, wherein the etching liquid returns to the slurry mixed liquid concentrated tank through the liquid outlet and is recycled;
(3) after the erosion experiment is finished, closing the slurry mixed liquid inlet and the driving motor, and opening the clear water inlet, so that water in the water tank is sprayed out of the erosion spray head through the clear water inlet and returns to the water tank through the liquid outlet for circular cleaning;
(4) and opening the sealing door of the equipment after cleaning, and taking out the drill rod.
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| CN101140209A (en) * | 2007-10-08 | 2008-03-12 | 西安理工大学 | Jet stream type erosion abrasion test device |
| CN201716245U (en) * | 2010-06-13 | 2011-01-19 | 河海大学常州校区 | Test piece surface erosion wear testing device |
| CN102175545B (en) * | 2011-01-18 | 2012-10-31 | 西南石油大学 | Test method for simulating working mechanism of drilling rig for gas drilling |
| CN102288503B (en) * | 2011-07-12 | 2013-08-14 | 中国石油大学(北京) | Testing machine for simulating erosion of high-pressure manifold |
| CN102493767A (en) * | 2011-12-02 | 2012-06-13 | 西南石油大学 | Gas well-drilling erosion experiment method |
| CN102589996B (en) * | 2012-01-14 | 2014-05-28 | 哈尔滨工程大学 | Multi-extreme-working-condition erosion test device applicable to multi-field coupling condition |
| CN103531076B (en) * | 2013-11-06 | 2015-09-23 | 西南石油大学 | A set of drilling condition simulation system and workflow thereof |
| CN205317606U (en) * | 2016-01-06 | 2016-06-15 | 西南石油大学 | Simulation gas drilling drilling rod erosion experimental apparatus |
| CN206114456U (en) * | 2016-10-31 | 2017-04-19 | 西南石油大学 | Simulation gas hydrate bores horizontal well drilling rod erosion experimental apparatus |
| CN107290229B (en) * | 2017-06-20 | 2019-06-11 | 西南石油大学 | High temperature and pressure erosion-corrosion fatigue test device |
| CN108344651B (en) * | 2018-01-17 | 2020-06-16 | 中国石油大学(华东) | Experimental device and method for evaluating erosion resistance of sieve tube |
| CN208060486U (en) * | 2018-05-06 | 2018-11-06 | 西南石油大学 | A kind of device that simulation drilling rod rotating speed influences gas hydrates horizontal well drilling erosion |
| CN108776075B (en) * | 2018-07-10 | 2021-01-08 | 长江大学 | Testing device and testing method for simulating erosion wear of underground drill rod |
| CN109283082B (en) * | 2018-10-17 | 2023-08-04 | 宁波市产品质量监督检验研究院 | Visual gas-solid erosion abrasion test device under flowing wetting condition and test method thereof |
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