CN112343584A - Pressure working barrel for external channeling of horizontal well inspection pipe and verification method thereof - Google Patents
Pressure working barrel for external channeling of horizontal well inspection pipe and verification method thereof Download PDFInfo
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- CN112343584A CN112343584A CN202011206673.4A CN202011206673A CN112343584A CN 112343584 A CN112343584 A CN 112343584A CN 202011206673 A CN202011206673 A CN 202011206673A CN 112343584 A CN112343584 A CN 112343584A
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Abstract
The invention relates to the technical field of oilfield separate layer water injection development, in particular to a pressure working barrel for outer channeling of a horizontal well testing pipe and a verification method thereof.A groove body is arranged along the length direction of the side wall of a pressure working barrel body 1, a detection component for monitoring pressure is arranged in the groove body, and different pressures are sensed by the detection component, so that the pressure value is monitored and stored; when the data values of the pressure values monitored on the detection parts in the upper pressure working cylinder and the lower pressure working cylinder of the packer are equal, the fact that the flow channeling exists outside the pipe is proved; when the data values of the pressure values monitored on the detection parts in the upper pressure working cylinder and the lower pressure working cylinder of the packer are not equal, the fact that the flow channeling does not exist outside the pipe is proved, the pressure working cylinder can accurately and effectively detect whether the flow channeling exists outside the pipe, meanwhile, the connectivity among all the sections of the horizontal well in the segmented injection and production mode is verified through the change of the pressure values, the effective packing of the segmented injection and production mode is guaranteed, and the significance of the segmented injection and production of the same well is achieved.
Description
Technical Field
The invention relates to the technical field of oilfield separate layer water injection development, in particular to a pressure working barrel for external channeling of a horizontal well testing pipe and a verification method thereof.
Background
The horizontal well has large contact area with the stratum and long oil reservoir penetration, has the advantages of large single well control reserve, high oil extraction speed and the like, and is widely applied to various oil and gas reservoirs. The horizontal well general water injection development has the problem of uneven water absorption profile, and the horizontal well sectional injection and production becomes a trend for improving the water driving degree and the water injection swept volume.
However, in the prior art, the oilfield horizontal well is developed by adopting staged volume fracturing, and due to the unique well body structure, the oilfield horizontal well is vertical to the direction of the horizontal well section, and artificial cracks develop. When the sectional injection and production development is carried out, if the external channeling flow checking work is not carried out in the early stage, the packer is set and does not avoid cracks, the sectional injection and production can cause the mutual channeling among sections, and the problem that the sectional injection and production development construction can not be carried out is caused.
The invention discloses a pressure working barrel for external channeling of a horizontal well test, aiming at solving the problems in the prior art and disclosing a pressure working barrel for external channeling of a horizontal well test and a verification method thereof.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides the pressure working barrel for the outer channeling of the horizontal well testing pipe and the verification method thereof, particularly has the characteristic of accurately verifying whether the outer channeling of the horizontal well testing pipe exists or not, lays a foundation for the later stage segmented injection and production process, ensures the effectiveness of the horizontal well production process, and saves the construction cost.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
the utility model provides a pressure working barrel for outer crossflow of horizontal well inspection pipe, includes the pressure working barrel body, the cell body has been seted up along the lateral wall length direction of pressure working barrel body, installs the determine part who is used for monitoring pressure in the cell body, it has closed the apron still to cover on the cell body, a plurality of pressure holes of advancing have been seted up on the apron.
Furthermore, a plurality of groove bodies are arranged along the length direction of the side wall of the pressure working barrel body, and the structure of each groove body is the same.
Further, the two groove bodies are respectively a first groove body and a second groove body, and the first groove body and the second groove body are symmetrically arranged along the central axis of the length direction of the pressure working barrel body.
Further, all be provided with two protection mechanisms in first cell body and the second cell body, one of them protection mechanism butt and the groove top of cell body, another protection mechanism butt and the tank bottom of cell body, the detection part sets up between two protection mechanisms.
Furthermore, the protection mechanism is a frustum-shaped protection cap, the small-diameter end of the frustum-shaped protection cap is in contact with the inner top surface of the top of the groove or the inner bottom surface of the bottom of the groove, and the large-diameter end of the frustum-shaped protection cap is in contact with the detection part.
Further, the pressure working barrel body be the cylinder structure, the middle part of cylinder structure is provided with the passageway, the one end of pressure working barrel body is provided with the internal thread connector, the other end of pressure working barrel body is provided with the external screw thread connector, the aperture of internal screw thread connector is greater than the through-hole aperture at the middle part of cylinder structure.
Further, the detection part in the cell body include power supply unit and pressure detection unit, the electricity is connected between power supply unit and the pressure detection unit, still be connected with a plurality of spacing fixed parts in the cell body, power supply unit and pressure detection unit are fixed in the cell body through a plurality of spacing fixed parts.
Further, the power supply unit be the battery nipple joint, the pressure measurement unit is for measuring the nipple joint, it is the high accuracy pressure gauge to measure the nipple joint.
Furthermore, the pressure inlet holes are formed in the outer side walls of the two ends of the cover plate along the length direction, and a plurality of pressure inlet holes are uniformly formed in the outer side walls of the two ends.
The method for verifying the pressure working barrel for the external channeling of the horizontal well testing pipe comprises the pressure working barrel for the external channeling of the horizontal well testing pipe, and comprises the following steps
Firstly, respectively connecting two ends of a packer with a pressure working cylinder for external channeling of a horizontal well testing pipe, and then lowering the packer and the two pressure working cylinders connected with the packer for external channeling of the horizontal well testing pipe into a pipe;
after the setting packer is pressed, water is injected with large discharge capacity, pressure enters the detection component through the pressure inlet hole, and different pressures are sensed through the detection component, so that the pressure value is monitored and stored;
after the part to be detected is monitored for a period of time, the pipe column is taken out, the cover plate is opened, pressure value data monitored on the detection part in the upper pressure working cylinder and the lower pressure working cylinder of the packer are respectively obtained, the pressure value data are played back by connecting the pressure value data on a computer through a USB data line, the pressure values monitored by the upper pressure working cylinder and the lower pressure working cylinder of the packer are observed, and whether the outside of the pipe has the channeling is judged;
when the data values of the pressure values monitored on the detection parts in the upper pressure working cylinder and the lower pressure working cylinder of the packer are equal, the fact that the flow channeling exists outside the pipe is proved;
when the data values of the pressure values monitored on the detection parts in the upper pressure working barrel and the lower pressure working barrel of the packer are not equal, the fact that the flow channeling does not exist outside the pipe is proved.
The invention has the beneficial effects that:
compared with the prior art, the horizontal well segmented injection-production process pipe column is provided with the pressure working cylinders which are respectively connected with the upper part and the lower part of the packer and used for the external channeling of the horizontal well testing pipe, after the packer is set through pressing, water is injected with large discharge amount, pressure enters the detection component through the pressure inlet hole, and different pressures are sensed through the detection component, so that the pressure value is monitored and stored; after the part to be detected is monitored for a period of time, the pipe column is taken out, the cover plate is opened, pressure value data monitored on the detection part in the upper pressure working barrel and the lower pressure working barrel of the packer are respectively obtained, the pressure value data in the upper pressure working barrel and the lower pressure working barrel of the packer are played back by being connected to a computer through a USB data line, the pressure values monitored by the upper pressure working barrel and the lower pressure working barrel of the packer are observed, and whether the flow channeling exists outside the pipe is; when the data values of the pressure values monitored on the detection parts in the upper pressure working cylinder and the lower pressure working cylinder of the packer are equal, the fact that the flow channeling exists outside the pipe is proved; when the data values of the pressure values monitored on the detection parts in the upper pressure working barrel and the lower pressure working barrel of the packer are not equal, the fact that the flow channeling does not exist outside the pipe is proved. Whether the pressure working barrel with the structure can accurately and effectively detect out the outside of the pipe to have the cross flow or not, and meanwhile, the connectivity among all the sections of the segmented injection and production of the horizontal well is verified through the change of the pressure value, so that the effective packing of the segmented injection and production is ensured, the significance of the segmented injection and production of the same well is realized, the normal operation of the later-stage segmented injection and production development and construction is ensured, and the construction cost is saved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is an overall sectional structure diagram of the present invention.
In the figure: 1-pressure working cylinder body, 2-cover plate, 3-limit fixing part, 4-measuring short section, 5-power short section, 6-protection mechanism and 7-pressure inlet hole.
Detailed Description
It should be noted that, in the embodiments of the present invention, the terms referred to are:
the pressure working barrel body 1 is used for bearing a detection component for monitoring pressure and is connected with a packer to monitor the pressure in a pipe.
The cover plate 2 is used for protecting the detection part inside the groove body, the groove body and the cover plate form a cavity, pressure can enter from the pressure inlet hole, and the detection part is convenient to monitor the pressure.
And the pressure inlet hole 7 is used for pressure inlet.
And a limit fixing part 3 for fixing the position of the detection component and limiting the position of the detection component.
And the power supply unit is used for supplying electric energy to the pressure detection unit, so that the power supply unit can be a battery or a rechargeable battery.
And the pressure detection unit is used for monitoring the pressure value and storing the value, and meanwhile, the value of the pressure detection unit can be connected with a computer through a pressure USB direct reading instrument to read corresponding pressure value data and judge whether the outside of the pipe has the cross flow or not.
The pressure working barrel for external channeling of a horizontal well testing pipe and the verification method scheme provided by the embodiment of the invention are described in detail through a plurality of specific embodiments.
Example 1:
referring to fig. 1, a pressure working barrel for outer channeling of a horizontal well testing pipe comprises a pressure working barrel body 1, a groove body is formed in the length direction of the side wall of the pressure working barrel body 1, a detection part used for monitoring pressure is installed in the groove body, a cover plate 2 is covered on the groove body, and a plurality of pressure inlet holes 7 are formed in the cover plate 2.
In the embodiment, before pressure monitoring in a pipe is carried out, the upper part and the lower part of a packer are respectively connected with a pressure working barrel for external channeling of a horizontal well testing pipe, after the packer is set by pressing, water is injected with large discharge amount, pressure enters a detection component through a pressure inlet hole 7, different pressures are sensed by the detection component, and thus pressure values are monitored and stored; after the component to be detected is monitored for a period of time, the pipe column is taken out, the cover plate 2 is opened, pressure value data monitored on the detection component in the upper pressure working barrel and the lower pressure working barrel of the packer are respectively obtained, the pressure value data in the upper pressure working barrel and the lower pressure working barrel of the packer are played back by being connected to a computer through a USB data line, the pressure values monitored by the upper pressure working barrel and the lower pressure working barrel of the packer are observed, and whether the flow channeling exists outside the pipe is; when the data values of the pressure values monitored on the detection parts in the upper pressure working cylinder and the lower pressure working cylinder of the packer are equal, the fact that the flow channeling exists outside the pipe is proved; when the data values of the pressure values monitored on the detection parts in the upper pressure working barrel and the lower pressure working barrel of the packer are not equal, the fact that the flow channeling does not exist outside the pipe is proved. Whether the pressure working barrel with the structure can accurately and effectively detect out the outside of the pipe to have the cross flow or not, and meanwhile, the connectivity among all the sections of the segmented injection and production of the horizontal well is verified through the change of the pressure value, so that the effective packing of the segmented injection and production is ensured, the significance of the segmented injection and production of the same well is realized, the normal operation of the later-stage segmented injection and production development and construction is ensured, and the construction cost is saved.
Example 2:
further, along the lateral wall length direction of pressure working barrel body 1 seted up a plurality of cell bodies, the structure of every cell body is the same, all install the determine part that is used for monitoring pressure in every cell body, all the lid has closed apron 2 on every cell body, a plurality of pressure holes 7 of advancing have been seted up on every apron 2, the determine part in a plurality of cell bodies through the pressure working barrel can be more accurate detect out the pressure value in different stratum, wherein avoid being located one side that sand buries after the stratum spitting sand as one side determine part, lose the monitoring effect, the determine part in the outside can also be normal the pressure value that detects this stratum in addition, guarantee the acquireing of monitoring pressure value data.
Example 3:
further, preferably, the number of the groove bodies is two, the two groove bodies are respectively a first groove body and a second groove body, and the first groove body and the second groove body are symmetrically arranged along a central axis of the pressure working barrel body 1 in the length direction.
Further, all be provided with two protection mechanism 6 in first cell body and the second cell body, the groove top of 6 butt of one of them protection mechanism and cell body, the tank bottom of 6 butt of another protection mechanism and cell body, the detection part sets up between two protection mechanism 6.
Furthermore, the protection mechanism 6 is a frustum-shaped protection cap, the small-diameter end of the frustum-shaped protection cap is in contact with the inner top surface of the top of the groove or the inner bottom surface of the bottom of the groove, and the large-diameter end of the frustum-shaped protection cap is in contact with the detection part.
Above-mentioned embodiment cell body is provided with two, and first cell body and second cell body set up along the central axis symmetry of 1 length direction of pressure working barrel body, guarantee to lie in one side that sand buries after the sand is spit out in the stratum as one side detection component, lose the monitoring effect, the pressure value in this stratum of detection that the detection component in the outside can also be normal in addition.
Two protection mechanisms 6, the groove top of 6 butts of a protection mechanism and cell body, the tank bottom of 6 butts of another protection mechanism and cell body, the test section sets up between two protection mechanisms 6, and protection mechanism 6 is used for the shock attenuation for frustum type helmet, alleviates because of the pressure fluctuation that different pressure got into the test section and arouse, causes the test section accuracy to reduce.
Example 4:
further, pressure working barrel body 1 be the cylinder structure, the middle part of cylinder structure is provided with the passageway, the one end of pressure working barrel body 1 is provided with the female connection head, the other end of pressure working barrel body 1 is provided with the external screw thread connector, the aperture of female connection head is greater than the through-hole aperture at the middle part of cylinder structure.
Pressure working barrel body 1 is the cylinder structure in the above-mentioned embodiment, it is intraductal to be convenient for place down, the middle part of cylinder structure is provided with the passageway, be used for the liquid circulation, the female connection head that the one end of pressure working barrel body 1 set up, for the body structure of pressure working barrel body 1, the hole of seting up in the female connection head communicates with the passageway at middle part, and the aperture of female connection head is greater than the through-hole aperture at the middle part of cylinder structure, be convenient for and packer intercommunication, the external screw thread connector that the other end of pressure working barrel body 1 set up also is a body structure of pressure working barrel body 1, be used for and packer intercommunication.
Example 5:
further, the detection part in the cell body include power supply unit and pressure detection unit, the electricity is connected between power supply unit and the pressure detection unit, still be connected with a plurality of spacing fixed part 3 in the cell body, power supply unit and pressure detection unit are fixed in the cell body through a plurality of spacing fixed part 3.
Further, the power supply unit be battery nipple 5, the pressure measurement unit is for measuring nipple 4, it is the high accuracy pressure gauge to measure nipple 4.
Above-mentioned embodiment a plurality of spacing fixed parts 3 are the hexagonal and detain for the pressure gauge equipment, battery nipple joint 5 is battery or rechargeable battery, and measurement nipple joint 4 is the high accuracy pressure gauge, and data is more accurate during the monitoring pressure, and the high accuracy pressure gauge adopts the precision to be at the pressure gauge more than five thousandths, and the high accuracy pressure gauge selects for use in the in-service use for the time of the west precaution instrument stocks ltd, and the model is: YL 19-4803.
Example 6:
further, advance pressure hole 7 set up on apron 2 along length direction's both ends lateral wall, evenly be provided with a plurality ofly on the lateral wall of both ends. The pressure enters from one end and flows out from the other end to form convection, and meanwhile, a cavity can be formed in the middle of the pressure monitoring device, so that the accuracy of pressure monitoring is guaranteed.
Example 7:
the method for verifying the pressure working barrel for the external channeling of the horizontal testing pipe comprises the pressure working barrel for the external channeling of the horizontal testing pipe in any one of the embodiments, and comprises the following steps
On a horizontal well sectional injection-production process pipe column, firstly, connecting two ends of a packer with a pressure working barrel for external channeling of a horizontal well testing pipe respectively, and then lowering the packer and the two connected pressure working barrels for external channeling of the horizontal well testing pipe into the pipe;
after the setting packer is pressed, water is injected with large discharge capacity, pressure enters the detection component through the pressure inlet hole 7, and different pressures are sensed through the detection component, so that the pressure value is monitored and stored;
after the part to be detected is monitored for a period of time, the pipe column is taken out, the cover plate 2 is opened, pressure value data monitored on the detection part in the upper pressure working cylinder and the lower pressure working cylinder of the packer are respectively obtained, the pressure value data are played back by connecting the pressure value data on a computer through a USB data line, the pressure values monitored by the upper pressure working cylinder and the lower pressure working cylinder of the packer are observed, and whether the outside of the pipe has the channeling is judged;
when the data values of the pressure values monitored on the detection parts in the upper pressure working cylinder and the lower pressure working cylinder of the packer are equal, the fact that the flow channeling exists outside the pipe is proved;
when the data values of the pressure values monitored on the detection parts in the upper pressure working barrel and the lower pressure working barrel of the packer are not equal, the fact that the flow channeling does not exist outside the pipe is proved.
By the method, whether the pipe has the flow channeling can be effectively and accurately detected, meanwhile, the connectivity among all the sections of the horizontal well in the segmented injection and production mode is verified through the change of the pressure value, the effective packing of the segmented injection and production mode is guaranteed, the significance of the segmented injection and production in the same well is realized, the normal operation of the later-stage segmented injection and production development construction is guaranteed, and the construction cost is saved.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and the scope of the present invention is within the scope of the claims.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Technical solutions between various embodiments may be combined with each other, but must be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Claims (10)
1. A pressure working barrel for external channeling of a horizontal well inspection pipe is characterized in that: including pressure working barrel body (1), the cell body has been seted up along the lateral wall length direction of pressure working barrel body (1), installs the detection part that is used for monitoring pressure in the cell body, apron (2) have still been closed to the lid on the cell body, a plurality of pressure holes (7) of advancing have been seted up on apron (2).
2. The pressure working barrel for external channeling of a horizontal well testing pipe according to claim 1, wherein: a plurality of groove bodies are arranged along the length direction of the side wall of the pressure working barrel body (1), and the structure of each groove body is the same.
3. A pressure working barrel for external channeling of a horizontal well testing pipe according to claim 1 or 2, wherein: the pressure working barrel is characterized in that the number of the groove bodies is two, namely a first groove body and a second groove body, and the first groove body and the second groove body are symmetrically arranged along the central axis of the length direction of the pressure working barrel body (1).
4. The pressure working barrel for external channeling of a horizontal well testing pipe according to claim 3, wherein: the first groove body and the second groove body are internally provided with two protection mechanisms (6), one protection mechanism (6) is abutted against the top of the groove body, the other protection mechanism (6) is abutted against the bottom of the groove body, and the detection part is arranged between the two protection mechanisms (6).
5. The pressure working barrel for the external channeling of the horizontal well testing pipe according to claim 4, wherein: the protection mechanism (6) is a frustum-shaped protection cap, the small-diameter end of the frustum-shaped protection cap is in contact with the inner top surface of the top of the groove or the inner bottom surface of the bottom of the groove, and the large-diameter end of the frustum-shaped protection cap is in contact with the detection part.
6. The pressure working barrel for external channeling of a horizontal well testing pipe according to claim 1, wherein: the pressure working barrel is characterized in that the pressure working barrel body (1) is of a cylindrical structure, a channel is arranged in the middle of the cylindrical structure, an internal thread connector is arranged at one end of the pressure working barrel body (1), an external thread connector is arranged at the other end of the pressure working barrel body (1), and the hole diameter of the internal thread connector is larger than that of a through hole in the middle of the cylindrical structure.
7. The pressure working barrel for external channeling of a horizontal well testing pipe according to claim 1, wherein: the detection part in the groove body comprises a power supply unit and a pressure detection unit, the power supply unit and the pressure detection unit are electrically connected, a plurality of limiting fixing parts (3) are further connected in the groove body, and the power supply unit and the pressure detection unit are fixed in the groove body through the limiting fixing parts (3).
8. The pressure working barrel for external channeling of a horizontal well testing pipe according to claim 7, wherein: the power supply unit be battery nipple joint (5), pressure detection unit is measurement nipple joint (4), measurement nipple joint (4) are the high accuracy pressure gauge.
9. The pressure working barrel for external channeling of a horizontal well testing pipe according to claim 1, wherein: the pressure inlet holes (7) are formed in the outer side walls of the two ends of the cover plate (2) along the length direction, and a plurality of pressure inlet holes are uniformly formed in the outer side walls of the two ends.
10. A method for verifying a pressure working cylinder for external channeling of a horizontal well testing pipe, which comprises the pressure working cylinder for external channeling of a horizontal well testing pipe, as claimed in any one of claims 1 to 9, and is characterized in that: comprises the following steps
Firstly, respectively connecting two ends of a packer with a pressure working cylinder for external channeling of a horizontal well testing pipe, and then lowering the packer and the two pressure working cylinders connected with the packer for external channeling of the horizontal well testing pipe into a pipe;
after the setting packer is pressed, water is injected with large discharge capacity, pressure enters the detection component through the pressure inlet hole (7), and different pressures are sensed through the detection component, so that the pressure value is monitored and stored;
after the part to be detected is monitored for a period of time, the pipe column is taken out, the cover plate (2) is opened, pressure value data monitored on the detection part in the upper pressure working cylinder and the lower pressure working cylinder of the packer are respectively obtained, the pressure value data are played back by connecting the pressure value data on a computer through a USB data line, the pressure values monitored by the upper pressure working cylinder and the lower pressure working cylinder of the packer are observed, and whether the outside of the pipe has the channeling is judged;
when the data values of the pressure values monitored on the detection parts in the upper pressure working cylinder and the lower pressure working cylinder of the packer are equal, the fact that the flow channeling exists outside the pipe is proved;
when the data values of the pressure values monitored on the detection parts in the upper pressure working barrel and the lower pressure working barrel of the packer are not equal, the fact that the flow channeling does not exist outside the pipe is proved.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011206673.4A CN112343584A (en) | 2020-11-03 | 2020-11-03 | Pressure working barrel for external channeling of horizontal well inspection pipe and verification method thereof |
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| CN202011206673.4A CN112343584A (en) | 2020-11-03 | 2020-11-03 | Pressure working barrel for external channeling of horizontal well inspection pipe and verification method thereof |
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Application publication date: 20210209 |