• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present disclosure relates to a material detection and sealing device (128, 300) comprising a body (202, 302) configured to be housed in a tubing string (110). The device (128, 300) contains a valve (204, 306, 324) in the body (202, 302) configured to open and close an orifice (208, 304) formed through the body (202, 302) . The device (128, 300) also contains a density meter (206, 308) configured to sense the density of a fluid. The valve (204, 306, 324) is configured to close when the densimeter (206, 308) detects a certain density condition of the fluid.
    公开号:FR3040729A1
    申请号:FR1657597
    申请日:2016-08-05
    公开日:2017-03-10
    发明作者:Bo Gao；Yuzhu Hu；John P Singh；Walmy Cuello Jimenez
    申请人:Halliburton Energy Services Inc；
    IPC主号:
    专利说明:

    Background [Θ001] This section introduces the reader to various aspects of the art that may be related to various aspects of the presently described embodiments. The discussion is considered useful for providing the reader with background information to facilitate a better understanding of the various aspects of the described embodiments. Accordingly, it will be understood that these statements must be read in light of this and not as prior art admissions.
    During cementation operations carried out in oil and gas wells, a hydraulic cement composition is disposed between the walls of the wellbore and outside of a drill string, such as a landing gear train. casing, which is placed in the wellbore. The cementitious composition can cure in the annular space, forming an annular sheath of hardened cement, substantially impermeable to the interior. The cement sheath physically supports and positions the pipe in the wellbore and connects the pipe to the walls of the wellbore, thereby preventing fluid migration between the zones or formations penetrated by the wellbore.
    [0003] A cementing process involves pumping the cementitious composition downwardly through the casing and then up through the annulus. According to this method, it is necessary to calculate the volume of cement necessary to fill the annular space. Once the calculated volume of cement has been pumped into the casing, a cement plug is placed in the casing. A drilling mud is then pumped behind the cement plug to force the cement into and out of the annulus, from the far end of the casing string to the surface or another desired depth. When the cement plug reaches a valve shoe disposed near the far end of the casing, the cement must have filled the entire volume of the annulus. At this point, the cement is allowed to dry in the annular space in the hard, substantially impermeable mass.
    However, this process may not be suitable for all wells, as it requires pumping cement at high pressures, which makes it potentially unsuitable for wells with softer formations or formation prone to fracturing. Inverse cementing is another cementing process in which the cement composition is pumped directly into the annulus between the casing string and the wellbore. According to this method, the pressure required to pump the cement to the far end of the annular space is much lower than that required in conventional cementing operations. Once the cement reaches the bottom of the well, the cement begins to rise inside the casing string unless pumping is stopped. In reverse cementing operations, it is necessary to identify when the cement begins to penetrate into the far end of the casing so that the cement pumps can stop.
    Brief Description of the Figures [0005] For a detailed description of the embodiments of the invention, reference is made to the accompanying drawings in which: FIG. 1 is an illustration of an oil well system or gas undergoing reverse cementation operation; Figure 2 shows a cross-sectional view of a detection and sealing device by reverse cementation located in a casing string.
    Figure 3 illustrates a cross-sectional view of a material detection and sealing device; and [0009] Figure 4 is a diagram of a reverse cementing process.
    DETAILED DESCRIPTION [0010] The present disclosure relates to methods and systems for detecting when an annulus is filled with cement, which signals completion of a reverse cementing operation or a step thereof. Detection takes place by a density sensor placed in a casing that determines the presence of cement inside the casing or at the bottom of the well. When the density sensor detects the presence of cement, an associated valve placed in or near the casing is closed, which prevents the cement from flowing further into the casing. This causes a peak pressure at the cement source, indicating the end of the pumping of the cement.
    If we refer to the figures, we see that Figure 1 illustrates a system of oil wells or gas 100 undergoing a reverse cementing operation. The system 100 includes a platform 102 centered on an underground oil or gas formation 104 below the earth's surface 106. A wellbore 108 extends through the various land strata, including the formation 104 A casing string 110 is located in the wellbore 108 and an annulus 112 is formed between the casing string 110 and the wellbore 108. The platform 102 includes a working bridge 118 which supports a derrick 120. The derrick 120 supports a hoist 122 for raising and lowering rod trains such as a tubing string 110. A pump 116 may be on the work deck 118 and is capable of pumping a number of fluids in the well. The pump 116 may contain pressure sensing means which gives a reading of the backpressure at the pump outlet.
    In a reverse cementing operation, a cementing material is pumped by the pump 116 located at the surface 106 in the annular space 112 of an upper end 114 of annular space 112 near the surface. 106 at a lower end 124 of the annular space 112. The wellbore 108 is typically filled with various fluids such as a drilling fluid that can be moved up the well through the interior of the tubing string. 110 while the cementing material is pumped down through the annular space 112. The drilling fluid has a different profile of densities relative to the cementing material. Specifically, the drilling fluid has a lower density than the cementing material. The drilling fluid may be any typical drilling fluid such as a water-based or an oil-based drilling fluid. The cementing material used may be any typical hydraulic cementitious material, for example and without limitation, those comprising calcium, aluminum, silicon, oxygen and / or sulfur which takes and hardens by reaction with water. These hydraulic materials may contain Portland cements, pozzolan cements, gypsum cements, high aluminum cements, silica cements, and high alkalinity cements.
    In some embodiments, the lower end 124 of the annular space 112 may be directly adjacent to the lower portion of the well 126. Thus, the cementing material has a propensity to flow upwards and into the the casing string 110, when a higher fluid pressure is introduced into the annular space 112, unless stopping the pumping of the cementing material. A sealing device 128 is in the casing string 110 and is configured to detect the presence of cementing material. Upon detection of the cementing material, the sealing device is actuated to form a barrier in the casing string 110, which prevents the cementing material from rising higher in the casing string 110. Sealing device 128 also provides an indication to stop pumping of the cementing material at pump 116. Thereafter, the cementing material is allowed to harden in annular space 112 to form a hard, substantially impermeable mass which physically supports and positions the tubing string 110 in the wellbore 108 and connects the tubing string 110 to the walls of the wellbore 108.
    Figure 2 shows the sealing device 128 located in the casing string 110. The sealing device 128 may be installed in the casing string 110, before the casing string 110 is lowered down the casing string 110. well. In some embodiments, a valve shoe 210 is installed at the distal end of the tubing string 110 and the sealing device 128 is above or partly in the valve shoe 210. The device 126 forms a seal against the inside of the tubing string 110, effectively blocking the tubing string 110 so that fluid can not flow between the device 126 and the casing string 110. Thus, the fluid can only mounting in the casing string 110 through the sealing device 128.
    The sealing device 128 may contain a body 202 containing an upper end 212 and a lower end 214. The body 202 is housed in the casing string 110, and acts mainly as a plug in the tubing string 110. body 202 is defined between an outer surface 216 and an inner port 208 formed therethrough from the upper end 212 to the lower end 214, the inner hole providing a flow path through which fluid can flow. flow into and out of the casing string 110. In some embodiments, the body 202 may be of plastics material or rubber capable of forming a seal against the tubing string 110. The body 202 may be solid or filled with a material such as cement.
    The sealing device 128 further comprises a valve 204 located in the body 202 configured to open and close the inner orifice 208. The sealing device 128 contains a densimeter 206 located on or in the body 202 and configured to detect the density of a fluid. The valve 204 is configured to close when the densimeter 206 detects a certain density condition of the fluid. In some embodiments, the density condition corresponds to a change in the detected density of the fluid. In some embodiments, the densimeter 206 includes a detector 218 or a probe that extends out of the body 202 and is in fluid communication with the fluid, which may be within the casing string 110, for thereby detecting the density of the fluid within the casing string 110. Otherwise, the sensor 218 or the probe extends out through the casing string 110 and into the annulus 112, thereby detecting the density of the fluid in the annular space 112 at the position of the detector 218. The fluid may be any fluid located next to the detector 218 of the densimeter 206.
    As indicated, the casing string 110 may be filled with an initial fluid such as a drilling fluid or other fluid prior to the reverse cementing operation. Thus, the fluid is initially that located near the sealing device 128 before the reverse cementing operation. While cement is pumped into the annulus 112 during reverse cementation, the initial fluid is progressively displaced by the cement that rises through the inner orifice 208 of the device 202 and upwardly into the casing string 110. Since the cementing fluid has a different density than the initial fluid, the densimeter 206 must detect a variation in the measured density of the fluid, which signals the presence of the cementing material. In some embodiments, the device 128 is at any location in the casing string 110 where the cementing material is to be stopped. In many applications, the sealing device 128 will be placed at the distal end of the casing string 110.
    When the densimeter 206 detects a change in the measured density of the fluid, the valve 204 is closed, sometimes automatically, which prevents the cement from flowing further into the casing string 110. When the valve 204 is closed or partially closed, an increase in back pressure must be measured at the pump 116. This indicates that the annulus 112 is fully filled with cement and stop pumping additional cement down the well. In many applications, pump 116 measures the increase in backpressure and automatically stops pumping.
    The densimeter 206 is coupled to the valve 204 through a processor 220. The processor 220 may be part of a circuit to which the densimeter 206 and the valve 204 are both coupled. In some embodiments, the processor 220 is configured to receive a signal from the densimeter 206, which indicates the detected density. By receiving a signal from the densimeter 206 indicating a sufficient variation of the density, the processor 220 sends an actuation signal to the valve 204, which closes the valve 204. Otherwise, the densimeter 206 and / or the processor 220 can be configured to detect when the density of the fluid falls within a certain range of values or a certain threshold, which also signals the presence of cement. The processor 220 may perform any type of signal processing necessary to determine the presence of cement based on the readings of the densimeter 206, and to transmit any type of signal necessary to close the valve 204. It is possible to preprogram the processor 220 with rules of and with threshold values.
    Valve 204 may correspond to a wide variety of valves or valve-type devices that can be actuated to allow and block the flow of fluid. The valve 204 may be a manual valve driven by a motor such as a leaf valve. The valve 204 may also be a ball valve, a butterfly valve, among others. The examples of valves 204 described herein do not limit the type of valves or valve-type devices for implementing the present disclosure, but rather serve as examples to help illustrate the concept of the present disclosure.
    The electronic aspects of the sealing device 128 such as the processor / microcontroller 220, the densimeter 206 and the valve 204 may be powered by a local power supply such as a battery or other device for accumulating electricity. . The battery may be coupled to processor / microcontroller 220, which transmits electricity to the densimeter and valve 204 as needed. The power supply can be of other types, such as an on-board hydraulic generator or neighbor. Any type of existing or new power supply can be used to provide power to the electronic aspects of the sealing device 128. In some embodiments, an actuating device such as a motor is coupled between the processor / microcontroller 220 and the valve 204, the actuator receiving power and signals from the processor / microcontroller 220 and activating the valve 204 accordingly.
    In some embodiments, a data acquisition and processing element may be integrated with the valve 204. The data acquisition and processing element may be programmable to provide better control of the valve 204. For example, the data acquisition and processing element may be configured to delay the closure of the valve 204 to provide the hoof with tracking of contamination in the casing string 110. In some embodiments, the Data acquisition and processing element can close the valve slowly and reduce the high back pressure.
    The sealing device 128 may be configured to detect the presence of a substance other than cement. For example, the device 128 may be configured to detect the presence of a certain gas, oil, water, drilling fluid or other fluid by configuring the settings and operating rules of the densimeter or of the processor 220 relative to the respective values correlated to the densities of these materials.
    FIG. 3 illustrates a cross-sectional view of another example of a detection and sealing device 300. The device 300 contains a body 302. The body 302 may comprise a tubular body defined by an outer surface 322 and by an inner surface 324 defining an inner bore 304 extending through the length of the device 300. The body 302 also includes a lower end 316 and an upper end 318. Like the sealing device 128 of Figure 2, the device is configured to be coupled to a tubing string 110. In some embodiments, the body 302 may be solid or filled with cement.
    The device 300 contains a check valve 306 and a controlled valve 324. The non-return valve 306 is in the inner port 304 closer to the upper end 318 and the controlled valve 324 is in the inner port 304 closer to the lower end 318. In some embodiments, the check valve 306 is configured to allow flow from the lower end 316 to the upper end 318 and to prevent flow into the opposite. When the casing string 110 and the device 300 are lowered into the wellbore, any fluid already present in the wellbore can flow through the check valve 306. The check valve 306 can be of any type of unidirectional valve. such as a flapper valve, a ball valve, a check valve, a tilting disc check valve, among others.
    The check valve 306 shown in Figure 3 is a flap valve which contains a base 326a and a flap 328a. The base 326a contains a cover formed therethrough which provides a flow path. The leaf 328a may be hinged or flexibly coupled to the base 326a so that the leaf 328a covers the opening when it closes. In some embodiments, the leaf 328a can move freely and generally covers the opening 328a unless it is opened by pushing a force applied at the lower end 316 to the upper end 318 such as that caused by a flow. of fluid.
    In some embodiments, the controlled valve 324 may also be a flapper valve and contain a base 326b and a flapper 328b. However, the opening and closing of the leaf 328b is controlled by a control device. The controller may include motor 310 in connection with a processor / microcontroller 312. Specifically, the motor 310 may be a linear motor configured to open the leaf 328b by pulling a cord 330 or cord to allow flow through this and the unwinding of the cable 330 or the cord, to allow the closure of the leaf 328b. The motor 310 may be controlled by the processor / microcontroller 312 to open or close the leaf 328b. In some embodiments, the closing of the leaf 328b can be controlled by a restoring force or a hydraulic force when the leaf 328b is released by the motor 310.
    The controlled valve 324 can be of any type of valve or mechanism that can be electrically controlled, or block flow through the inner port 304, including a flapper, a ball valve, a valve butterfly, among others.
    The sealing device 300 contains a densimeter 308 configured to detect the density of a fluid inside the inner orifice 304 or outside the sealing device 300. The densimeter 308 may be anywhere in the device 300 or around it, and is communicatively coupled to the processor / microcontroller 312. The processor / microcontroller 312 is configured to continuously receive a signal from the densimeter 308, which indicates the detected density. The processor / microcontroller 312 or the densimeter 308 is configured to detect the occurrence of a certain density condition of the fluid. The density condition may correspond to a variation which is the measured density of the fluid, or the fact that the measured density of the fluid falls within a certain range of values or crosses a certain threshold, which may indicate the presence of the cement, at which point the pumping of the cement can be stopped.
    Upon detection of the density condition, the processor / microcontroller 312 actuates the motor 310 or other mechanical actuator, to close the controlled valve 324, which blocks the flow of cement further into the tubing string 110 In some embodiments, the motor 310 is absent and the actuating mechanisms are integrated with the controlled valve 324. In these embodiments, the processor / microcontroller 312 directly transmits an actuation signal to the controlled valve 324. Inclusion of the check valve 306 with the controlled valve 324 may provide some level of redundancy while the check valve 306 prevents fluids from flowing back into the seal 128 which may otherwise push the controlled valve 324.
    The examples of hardware detection and sealing devices 128,300 of Figures 2 and 3 can be used in reverse cementing operations. Figure 4 is a diagram illustrating a method 400 for performing a reverse cementing operation. Referring to FIGS. 2 and 4, it can be seen that the method 400 begins with the material detection and opening of the sealing device 128 (step 402). The sealing device 128 may be installed at the bottom within a tubing string, typically toward the distal end of the tubing string, but not necessarily. The method then comprises the start of pumping of cementing fluid down the well (step 404). The pumping of the cementing fluid continues until stopping at step 412. When pumping the cementing fluid towards the bottom, the densimeter 206 located on the sealing device 128 continuously detects the density of a fluid (406). The processor 220 receives data from the densimeter 206 and continuously compares the density data to a certain threshold (step 408).
    If the detected density of the fluid is below the threshold, then the densimeter 206 continues to take density measurements (step 406) and the processor continues to verify the measurement data with respect to the threshold (step 408) ; no further action is taken and the pumping of cement continues. However, if the detected density of the fluid is greater than or equal to the threshold, the valve 204 located inside the sealing device 128 is closed (410).
    The closure of the valve 204 closes the casing string 110 to the annular space, preventing any cementing material from entering the tubing string 110. It will be noted that the comparison of the density measurement to a certain threshold is an example of means for detecting the presence of cement. The processor 220 may also detect a decrease or increase of the density value or any other similar rule of data processing or exploitation.
    Closing the valve 204 causes an increase in backpressure that is detected by the pump 116 (see Fig. 1) (step 412). The peak pressure indicates the cessation of pumping the cement down the well. Thus, the pumping is stopped (step 414). The sealing device 128 and the surface pump 116 may both be configured to perform the steps of the method 400 independently and without human intervention. Thus, the surface pump 116 and the sealing device 128 can communicate wirelessly. The pumping stop indication can be communicated from the sealing device 128 to the surface pump 116 by the peak pressure when the valve 204 is closed, which can be detected by the pump 116. The peak pressure also indicates that the casing string 110 has been sealed by the sealing device 128. In some embodiments, the surface pump 116 and the device 128 may communicate by wire or non-wire communication.
    In addition to the embodiments described above, many examples of specific combinations are within the scope of the disclosure, and some of them are described below:
    Example 1: Apparatus for material detection and sealing, comprising: a body configured to be housed within a casing string; a valve located in the body and configured to open and close an orifice formed through the body; a densimeter configured to detect the density of a fluid; and wherein the valve is configured to close when the hydrometer detects a certain density condition of the fluid.
    Example 2: Device according to Example 1, wherein the valve comprises a flapper valve, a ball valve, a nonreturn valve, a controlled valve or any combination thereof.
    Example 3: Device according to Example 1 or 2, comprising a one-way valve located in the body and configured to allow fluid flow through the body in one direction.
    Example 4: Apparatus according to any of the examples therein 3, wherein the density condition comprises a variation of the detected density of the fluid, or the fact that the detected density is within a range of values or beyond a threshold value.
    Example 5: Device according to any one of Examples 1 to 4, wherein the fluid is in the orifice.
    Example 6: Device according to any one of Examples 1 to 5, further comprising a microcontroller configured to receive density data from the densimeter and to send an electrical signal to close the valve when the density data satisfies the condition. of density.
    Example 7: Device according to any one of Examples 1 to 6, wherein the densimeter is configured to continuously detect the density of the fluid.
    Example 8: A cementation system for cementing a casing in a wellbore, comprising: a casing string located in the wellbore, an annulus being formed between the tubing string and the wellbore; a pump configured to pump a cementing material into the annular space; and a sealing device located in the tubing string, comprising: a valve configured to allow flow in the tubing string from the annulus into an open state and to block flow in the tubing string in a closed state; a densimeter configured to detect the density of a fluid; and wherein the valve is configured to close when the hydrometer detects a certain density condition of the fluid.
    Example 9: System according to Example 8, wherein the fluid is inside the tubing string or in the annular space.
    Example 10: System according to Example 8 or 9, wherein the sealing device comprises a body configured to seal against the inside of the tubing string, the body comprising an orifice which is formed in said body and which allows the flow in the tubing string, and wherein the opening and closing of the orifice is controlled by the valve.
    Example 11: A system according to any one of Examples 8 to 10, wherein the pump is configured to stop pumping of the cementing material upon detection of a backpressure elevation.
    Example 12: System according to any one of Examples 8 to 11, wherein the valve contains at least one or more of a flapper valve, a ball valve, a non-return valve, a a controlled valve or any combination thereof.
    Example 13: A system according to any one of Examples 8 to 12, wherein the density condition comprises a change in the detected density of the fluid, or the detected density of the fluid is in a range of values or beyond a threshold value.
    Example 14: A system according to any one of Examples 8 to 13, wherein the sealing device further comprises a microcontroller configured to receive density data from the densimeter and to send an electrical signal to close the valve when the Density data satisfy the density condition.
    Example 15: The system of any of Examples 8 to 14, wherein the fluid is at a distal end of the tubing string.
    Example 16: A method of cementing a wellbore, comprising: pumping a cementitious material into an annulus defined between a tubing string and the wellbore; detecting the presence of the cementing material at a location along the casing string; closing a valve in the casing string when detecting the cementing material; and stopping the pumping of the cementing material after closing the valve.
    Example 17: The method according to Example 16, further comprising detecting a rise in the back pressure at the pump when closing the valve, and stopping the pumping of the cementing material upon detection from the elevation of the counterpressure.
    Example 18: Process according to Example 16 or 17, wherein the detection of the presence of the cementing material comprises the detection of a certain density condition in a fluid, the fluid being in the annular space, at inside the casing string or at the bottom of the well.
    Example 19: The method of any one of Examples 16 to 18, wherein closing the valve comprises preventing the cementing material from flowing further into the casing.
    Example 20: A method according to any one of Examples 16 to 19 including allowing the cementing material to cure. (00361 Various embodiments of the invention are discussed The drawing figures are not necessarily to scale Some features of the embodiments may be exaggerated in scale or somewhat diagrammatic form, and some details of conventional elements may not appear for the sake of clarity and brevity, and although several examples of these embodiments may be preferred, the described embodiments should not be interpreted or otherwise used as limiting the scope of the invention. disclosure, including the claims It should be recognized that the various teachings of the contemplated embodiments may be used separately or in any suitable combination to produce the desired results, and a specialist must understand that the description has wide application. , and the discussion of any mode of realization n should only be an example of this embodiment, and is not meant to imply that the scope of the disclosure, including the claims, is limited to this embodiment.
    Certain terms are used throughout the description and the claims correspond to particular features or components. As a specialist will understand, different people may designate the same feature or component by different names. This document is not intended to differentiate between components or features that differ in name but not in function unless specifically indicated. In the discussion and in the claims, the terms "including" and "including" are used in an open manner, and must therefore be interpreted to mean "including, without limitation ...". In addition, the term "couple" or "couples" is intended to mean either indirect or direct connection. In addition, the terms "axial" and "axially" generally refer to the long or parallel to a central axis (eg the central axis of a body or orifice), while the terms "radial" and "radial" radially "generally mean perpendicular to the central axis. The use of "up", "down", "above", "below" and variations of these terms is for convenience, but does not require any particular orientation of the components.
    Throughout this description, the reference to "an embodiment", or a similar expression means that a particular structure or feature described in connection with the embodiment may be part of at least one mode. embodiment of the present disclosure. Thus, the appearance of "in one embodiment" sentences and similar expressions throughout this description may all but not necessarily be the same embodiment.
    Although the present invention has been described with reference to specific details, it is not intended that these details be considered as limitations of the scope of the invention, except insofar as they are part of appended claims.
    权利要求:
    Claims (20)
    [1" id="c-fr-0001]
    claims
    Material detection and sealing device (128, 300), characterized in that said device (128, 300) comprises: a body (202, 302) configured to be housed inside a tubing string ( 110); a valve (204, 306, 324) located in the body (202, 302) and configured to open and close an orifice (208, 304) formed through the body (202, 302); a densimeter (206, 308) configured to sense the density of a fluid; and in that the valve (204, 306, 324) is configured to close when the hydrometer (206, 308) detects a certain density condition of the fluid.
    [2" id="c-fr-0002]
    The device (128, 300) according to claim 1, wherein the valve (204, 306, 324) comprises a flapper valve, a ball valve, a check valve (306), a controlled valve (324). or any combination thereof.
    [3" id="c-fr-0003]
    Device (128, 300) according to claim 1 or 2, comprising a unidirectional valve (204, 306, 324) located in the body (202, 302) and configured to allow fluid flow through the body (202, 302). in one direction.
    [4" id="c-fr-0004]
    The device (128, 300) according to any one of claims 1 to 3, wherein the density condition comprises a variation of the detected density of the fluid, or the fact that the detected density is within a range of values or a threshold value.
    [5" id="c-fr-0005]
    5. Device (128, 300) according to any one of claims 1 to 4, wherein the fluid is in the orifice (208, 304).
    [6" id="c-fr-0006]
    The device (128, 300) according to any one of claims 1 to 5, further comprising a microcontroller (220, 312) configured to receive density data from the densimeter (206, 308) and to send a signal to close the valve (204, 306, 324) when the density data satisfies the density condition.
    [7" id="c-fr-0007]
    The device (128, 300) according to any one of claims 1 to 6, wherein the densimeter (206, 308) is configured to continuously detect the density of the fluid,
    [8" id="c-fr-0008]
    A cementation system for cementing a casing in a wellbore (108), characterized in that said system comprises: a tubing string (110) located in the wellbore (108), an annulus (112) being formed between the casing string (110) and the wellbore (108); a pump (116) configured to pump a cementing material into the annulus (112); and a sealing device (128, 300) located in the tubing string (110), comprising: a valve (204, 306, 324) configured to allow flow in the tubing string (110) from the tubing string (110); annular space (112) in an open state and for blocking flow in the casing string (110) in a closed state; a densimeter (206, 308) configured to sense the density of a fluid; and in that the valve (204, 306, 324) is configured to close when the hydrometer (206, 308) detects a certain density condition of the fluid.
    [9" id="c-fr-0009]
    The system of claim 8, wherein the fluid is within the tubing string (110) or in the annulus (112).
    [10" id="c-fr-0010]
    The system of claim 8 or 9, wherein the sealing device (128, 300) comprises a body (202, 302) configured to seal against the interior of the tubing string (110), the body (202, 302) comprising an orifice (208, 304) which is formed in said body and which allows flow in the tubing string (110), and wherein opening and closing of the orifice (208, 304) is controlled by the valve (204, 306, 324).
    [11" id="c-fr-0011]
    The system of any one of claims 8 to 10, wherein the pump (116) is configured to stop pumping of the cementing material upon detection of a backpressure elevation.
    [12" id="c-fr-0012]
    The system of any one of claims 8 to 11, wherein the valve (204, 306, 324) contains at least one or more of a flapper valve, a ball valve, a check valve (306), a controlled valve (324), or any combination thereof.
    [13" id="c-fr-0013]
    The system of any one of claims 8 to 12, wherein the density condition comprises a change in the detected density of the fluid, or the detected density of the fluid is within a range of values or beyond a threshold value.
    [14" id="c-fr-0014]
    The system of any one of claims 8 to 13, wherein the sealing device (128, 300) further comprises a microcontroller (220, 312) configured to receive density data from the hydrometer (206, 308) and to send an electrical signal to close the valve (204, 306, 324) when the density data satisfies the density condition.
    [15" id="c-fr-0015]
    The system of any one of claims 8 to 14, wherein the fluid is at a distal end of the tubing string (110).
    [16" id="c-fr-0016]
    A method of cementing a wellbore (108), characterized in that said method comprises: pumping a cementitious material into an annulus (112) defined between a tubing string (110) and the well drilling (108); detecting the presence of the cementing material at a location along the casing string (110); closing a valve (204, 306, 324) in the casing string (110) upon detection of the cementing material; and stopping the pumping of the cementing material after the closure of the valve (204, 306, 324).
    [17" id="c-fr-0017]
    The method of claim 16, further comprising detecting a pressure relief elevation at the pump (116) upon closure of the valve (204, 306, 324), and stopping pumping of the cementing material when detecting the elevation of the counterpressure.
    [18" id="c-fr-0018]
    The method of claim 16 or 17, wherein detecting the presence of the cementing material comprises detecting a certain density condition in a fluid, the fluid in the annular space (112), inside the casing string (110) or at the bottom of the well (108).
    [19" id="c-fr-0019]
    The method of any one of claims 16 to 18, wherein closing the valve (204, 306, 324) comprises preventing the cementing material from flowing further into the casing. .
    [20" id="c-fr-0020]
    The method of any one of claims 16 to 19 including allowing the cementing material to cure.
    类似技术:
    公开号 | 公开日 | 专利标题
    FR3040729A1|2017-03-10|REVERSE CEMENT SYSTEMS AND METHOD
    EP1184536B1|2004-03-03|Method and apparatus for installing casing in a well
    RU2352776C2|2009-04-20|Method and device for determination of optimal rate of fluid withdrawal on base of pressure determined in well at beginning of condensation
    FR2863003A1|2005-06-03|APPARATUS AND METHOD FOR PUMPING DOWNHOLE FLUID
    US9581020B2|2017-02-28|Injection for sampling heavy oil
    EP0364362A1|1990-04-18|Method and device for logging non-eruptive wells
    WO2007123909A3|2008-12-04|Downhole flow control apparatus, operable via surface applied pressure
    EP1898044A3|2008-05-28|Annulus pressure control drilling systems and methods
    US20070068703A1|2007-03-29|Method for drilling and cementing a well
    US10415333B2|2019-09-17|Reversing differential pressure sticking
    DK2785965T3|2016-11-07|An annular barrier system with a flow pipe
    FR2836953A1|2003-09-12|TRAINING TEST APPARATUS FOR A PRE-TEST USING PULSED FLUID FLOW CONTROL
    US9938820B2|2018-04-10|Detecting gas in a wellbore fluid
    CA2952749A1|2016-01-07|Downhole sensor system
    US8708042B2|2014-04-29|Apparatus and method for valve actuation
    CA2133297C|2005-01-25|Method for evaluating the damage of the rock structure surrounding a well
    WO2009129240A3|2010-01-14|Selective zonal testing using a coiled tubing deployed submersible pump
    US10689933B2|2020-06-23|Pressure assisted motor operated ram actuator for well pressure control device
    MX2014000417A|2014-02-27|Formation testing in managed pressure drilling.
    RU2522368C2|2014-07-10|Unit for controlled delivery of bottomhole treatment fluid
    GB2588739A|2021-05-05|Systems and method for reverse cementing
    Taoutaou2013|Qualification of specialized cement to inflate bridge plug for water shutoff application in horizontal wells
    US11215031B2|2022-01-04|Locking backpressure valve with shiftable valve sleeve
    CA2513166A1|2006-12-30|Method of monitoring gas influx into a well bore when drilling an oil and gas well, and apparatus constructed in accordance with the method
    WO2022026683A1|2022-02-03|Bore plug analysis system
    同族专利:
    公开号 | 公开日
    GB2564170B|2021-05-26|
    WO2017044075A1|2017-03-16|
    GB201802019D0|2018-03-28|
    US20180238139A1|2018-08-23|
    GB2564170A|2019-01-09|
    NO20180206A1|2018-02-09|
    AU2015408753B2|2020-12-17|
    US10344558B2|2019-07-09|
    AU2015408753A1|2018-02-22|
    MX2018001910A|2018-11-12|
    CA2994805A1|2017-03-16|
    CA2994805C|2019-10-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4035023A|1975-07-15|1977-07-12|Freeport Minerals Company|Apparatus and process for hydraulic mining|
    US5890538A|1997-04-14|1999-04-06|Amoco Corporation|Reverse circulation float equipment tool and process|
    US6347666B1|1999-04-22|2002-02-19|Schlumberger Technology Corporation|Method and apparatus for continuously testing a well|
    US20030029611A1|2001-08-10|2003-02-13|Owens Steven C.|System and method for actuating a subterranean valve to terminate a reverse cementing operation|
    US7252152B2|2003-06-18|2007-08-07|Weatherford/Lamb, Inc.|Methods and apparatus for actuating a downhole tool|
    US7303008B2|2004-10-26|2007-12-04|Halliburton Energy Services, Inc.|Methods and systems for reverse-circulation cementing in subterranean formations|
    US7357181B2|2005-09-20|2008-04-15|Halliburton Energy Services, Inc.|Apparatus for autofill deactivation of float equipment and method of reverse cementing|
    US7533728B2|2007-01-04|2009-05-19|Halliburton Energy Services, Inc.|Ball operated back pressure valve|
    US8708050B2|2010-04-29|2014-04-29|Halliburton Energy Services, Inc.|Method and apparatus for controlling fluid flow using movable flow diverter assembly|US10794143B2|2017-10-06|2020-10-06|Baker Hughes, A Ge Company, Llc|Sub-surface safety valve flapper sleeve|
    US11208885B2|2020-01-31|2021-12-28|Halliburton Energy Services, Inc.|Method and system to conduct measurement while cementing|
    US11261703B1|2020-10-27|2022-03-01|Halliburton Energy Services, Inc.|Dual valves for reverse cementing operations|
    法律状态:
    2017-07-26| PLFP| Fee payment|Year of fee payment: 2 |
    2018-07-18| PLFP| Fee payment|Year of fee payment: 3 |
    2018-08-31| PLSC| Search report ready|Effective date: 20180831 |
    2020-05-08| ST| Notification of lapse|Effective date: 20200406 |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/US2015/048941|WO2017044075A1|2015-09-08|2015-09-08|Systems and method for reverse cementing|
    [返回顶部]