CN111594148A - Bus type multi-probe detection module and detection method - Google Patents
Bus type multi-probe detection module and detection method Download PDFInfo
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- CN111594148A CN111594148A CN202010472852.6A CN202010472852A CN111594148A CN 111594148 A CN111594148 A CN 111594148A CN 202010472852 A CN202010472852 A CN 202010472852A CN 111594148 A CN111594148 A CN 111594148A
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- 230000003068 static effect Effects 0.000 claims description 7
- 238000004422 calculation algorithm Methods 0.000 claims description 5
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- 230000005484 gravity Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
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- 238000009530 blood pressure measurement Methods 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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Abstract
The invention discloses a bus type multi-probe detection module, which comprises a multi-probe combination unit, and comprises: a control circuit, at least three types of probes; wherein the control circuit is arranged to control the opening or retraction of the at least three types of probes, respectively, and the opening or closing of suction ports on the at least three types of probes, respectively; the pressure sensors are in one-to-one correspondence with the probes and are used for measuring the pressure of the formation fluid; a processor configured to determine a fluid interface based on the formation fluid pressure measured by the pressure sensor; and one or more bus interfaces for other modules to connect with the detection module. The invention also discloses a detection method for detecting by adopting the bus type multi-probe detection module.
Description
Technical Field
The invention relates to the field of oil and gas reservoir detection, in particular to a bus type multi-probe detection module and a detection method.
Background
Hydrocarbon reservoir exploration is important in hydrocarbon production. The complex diversity of the reservoir determines that when the pressure measurement sampling operation is carried out on the same well, a single probe cannot meet the detection requirement. Meanwhile, the existing equipment adopts a non-bus structure, when the whole equipment is constructed by the detection module and other modules, the limitation on the combination mode and the sequence is more, and various conversion short sections and control points are often required to be added for realizing the purpose of hanging a plurality of groups of probes in one-time downhole, so that the circuit control complexity is high, and the stability of operation is influenced. Meanwhile, along with the depth of exploration and development, the number of wells with the well temperature between 175 and 205 ℃ is remarkably increased and gradually becomes a normal state, and the temperature resistance of the traditional probe module is 175 ℃, so that the traditional probe module is difficult to adapt.
Therefore, the modularized high-temperature-resistant probe module capable of meeting the requirement of one-time detection for adapting to the characteristics of various reservoirs becomes a new requirement for oil and gas reservoir detection.
Disclosure of Invention
Aiming at the defects of the prior probe module in the technical scheme, the invention provides a bus type multi-probe detection module and a detection method, which can meet the complex and various reservoir detection requirements.
The embodiment of the invention provides a bus type multi-probe detection module, which comprises,
a multi-probe combination unit comprising: a control circuit, at least three types of probes; wherein the control circuit is arranged to control the opening or retraction of the at least three types of probes, respectively, and the opening or closing of suction ports on the at least three types of probes, respectively; the pressure sensors are in one-to-one correspondence with the probes and are used for measuring the pressure of the formation fluid;
a processor configured to determine a fluid interface based on the formation fluid pressure measured by the pressure sensor;
and one or more bus interfaces for other modules to connect with the detection module.
The embodiment of the invention also provides a detection method, which comprises the following steps,
fixing the bus type multi-probe detection module at a preset position in the well;
a control circuit in the detection module controls to open at least one probe included in the bus type multi-probe detection module for detection; when the detection is carried out, the pressure sensor corresponding to the opened probe measures the pressure of the formation fluid; a processor in the detection module determines a fluid interface based on the formation fluid pressure measured by the pressure sensor.
Optionally, the method further comprises sending the data of the determined fluid interface to other modules or devices outside the detection module through at least one bus interface of the detection module.
Drawings
Fig. 1 is a frame structure example of a working apparatus in the related art;
FIG. 2 is a block diagram illustrating a logic structure of a bus-based multi-probe probing module according to an embodiment of the present invention;
FIG. 3 is a schematic view of a probe suction port according to an embodiment of the present invention;
FIGS. 4a-4b are schematic illustrations of probe retraction and deployment in accordance with a first embodiment of the present invention;
FIG. 5 is a block diagram illustrating a logic structure of a bus-based multi-probe probing module according to a second embodiment of the present invention;
fig. 6 is a flowchart of a detection method according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Example one
The requirements on the flow area of the probe are different due to different physical properties of the reservoirs, and the flow area required by the reservoir with poorer physical properties is larger; the same well section has a plurality of reservoirs with different physical properties, and the three probes can basically meet the requirements of the reservoirs with various physical properties. The embodiment of the invention provides a bus type multi-probe detection module which comprises three types of probes, can avoid occupying a large amount of time of a wellhead due to the fact that the probes are replaced at the wellhead due to different physical properties, and greatly improves the success rate (67%) and the timeliness (60%) of operation.
The three different types of probes basically cover the requirements of various reservoirs from hypotonic to hypertonic on the probes, wherein the first one meets the requirements of a conventional reservoir, the second one meets the requirements of a hypertonic reservoir, and the third one meets the requirements of a hypotonic reservoir.
In the present embodiment, a bus-type multi-probe probing module 20 is provided, as shown in fig. 2, including:
the system comprises a bus type interface F1, an energy accumulator A1, a control circuit C1, 3 probes (T1, T2 and T3), 3 quartz pressure sensors (E1, E2 and E3) corresponding to the probes, 3 supporting arms (P1, P2 and P3), a hydraulic control unit H1, a hydraulic system G1, 3 normally-open mechanical valves (V1, V2 and V3) and a processor B1.
Each probe is provided with a suction port for sucking fluid in the reservoir. For example, as shown at 301 in FIG. 3, is the mouthpiece.
Wherein, three high-precision quartz pressure sensors (E1, E2 and E3) correspond to the three probe suction ports and can accurately measure the pressure of the formation fluid;
further, the processor B1 is configured to determine a fluid interface based on the formation fluid pressure measured by the pressure sensor; that is, the fluid interface is computationally determined from a regression algorithm of the formation fluid pressure differential measured by the pressure sensor.
And the control circuit C1 is configured to control the opening or retraction of the 3 probes respectively and the opening or closing of the suction ports on each probe respectively. For example, one probe is retracted as shown in FIG. 4a and the probe is opened as shown in FIG. 4 b.
Optionally, the probe is covered with a rubber sheet, and after the probe is opened, the rubber sheet on the probe is extruded to deform the probe, so that external slurry can be isolated to form a sealing area; and a base layer is laid for subsequent formation pressure and sampling.
Wherein the control circuit C1 in combination with the hydraulic control unit H1 controls the hydraulic system G1 to complete the opening and retraction of the probe; the control circuit C1 also in combination with the hydraulic control unit H1 controls the hydraulic system G1 to accomplish the opening and retraction of the support arms;
when the supporting arm is opened, the supporting arm is used for pushing against the well wall to increase the static friction force between the detection module and the well wall. The detection module needs to go deep into the well for detection, the detection module or the integrated equipment is generally placed into the well through a cable for operation, and the whole weight is completely borne by the cable; to obtain clean formation fluid, the detection module is allowed to stand downhole for a long time; the cable is very easy to be adsorbed on the well wall to cause underground accidents due to long-time stillness. In order to avoid the situation, the static friction force generated by pushing the supporting arm against the well wall is far greater than the weight of the equipment or the module during design, so that the cable can be loosened during operation, and the underground safety is guaranteed.
For example, 3 support arms can generate 8 tons of thrust when opened, 3 probes can generate 8 tons of thrust when opened, and if all the support arms are opened, the thrust of 16 tons is generated, while the whole probe module only weighs 0.7 tons, so that the static friction force generated by the support arms or the support arms and the probes can be enough to support the probe module; the thrust is generated by a hydraulic system.
The accumulator A1, which fills accumulator A1 with pressure before operation; when the underground operation is abnormal, the energy accumulator withdraws the supporting arm and/or the probe by utilizing the energy stored in advance, so that the safety of the underground operation is ensured. The control circuit C1 is capable of determining a circuit fault occurring in the detection module, and determining that an abnormality occurs; for example, sudden power failure is also an anomaly.
All devices of the detection module adopt devices which are at least contacted with high temperature and still normally work at 205 ℃ so as to meet the detection requirement of a high-temperature environment. For example, the included sensors, chips, and circuit boards all need to be replaced to meet the high temperature requirement of 205 degrees.
The processor B1 and the control circuit C1 of the detection module adopt an integrated circuit design, and the whole detection module is connected with other modules through the at least one bus interface F1 to construct a plurality of functional downhole operation devices in a combined mode. For example, the multifunctional operation equipment can be combined with other pumping modules and fluid identification modules and connected through the bus interface.
The conventional work apparatus shown in fig. 1 is a work apparatus integrating a plurality of functions, and is integrally controlled by a control circuit, which is generally placed on the top of the apparatus. For example, the length of the whole equipment reaches 37 meters, the distance between the probe module and the control circuit is far, and problems of control command delay, error codes and the like often occur in the detection process, so that the control precision, the overall stability of the equipment and the reliability are poor.
In this embodiment, the multi-probe probing module includes an independent processor B1 and a control circuit C1, the entire probing module is integrated, and a comprehensive multifunctional device is constructed together with other modules through a bus interface F1, sub-functions of probe control, support arm control, fluid interface calculation, and the like included in the probing module are all completed by the processor B1 and/or the control circuit C1 integrated in the probing module, the probing module can independently complete all set-point functions, and the control accuracy and reliability are greatly improved compared with the existing centralized control scheme. The detection module described in this embodiment can be accessed through the bus type interface by only providing a power supply and a communication channel by an external module or device, and can break through the structural limitation and be flexibly combined to construct a device (instrument) with comprehensive functions.
Example two
In this embodiment, a bus-based multi-probe probing module 50 is provided, as shown in fig. 5, including:
a multi-probe combination unit K1 comprising: a control circuit C1, at least three types of probes (T1, T2, T3); wherein the control circuit C1 is configured to control the opening or retraction of the at least three types of probes (T1, T2, T3) and the opening or closing of the suction ports on the at least three types of probes, respectively;
the multi-probe combination unit K1 further comprises pressure sensors (L1, L2, L3) corresponding to the probes one by one, and the pressure sensors are arranged to measure the pressure of the formation fluid;
a processor B1 configured to determine a fluid interface based on the formation fluid pressure measured by the pressure sensor;
one or more bus interfaces F1 for other modules to connect to the probe module.
Optionally, the detection module further comprises at least 3 support arms (P1, P2, P3);
when the supporting arm is opened, the supporting arm is used for pushing against a well wall to increase the static friction force between the detection module and the well wall;
the control circuit C1 is also used to control the opening and retraction of the support arm.
Optionally, the detection module further comprises an accumulator a 1;
the accumulator a1 is configured to fill with pressure prior to downhole operations;
when the detection module 50 fails, the accumulator a1 uses the stored energy to retract the probe and/or the support arm.
Optionally, the detection module further comprises at least three mechanical valves (V1, V2, V3) in one-to-one correspondence with the probes;
the mechanical valves (V1, V2, V3) are arranged to be controlled by the control circuit to open or close the suction port on the probe.
Optionally, the static friction generated by pushing against the well wall when the supporting arm is opened is greater than the gravity of the detection module.
Optionally, the processor B1 and the control circuit C1 are of an integrated circuit design;
the devices included in the detection module are at least devices which can still normally work when exposed to high temperature of 205 ℃.
Optionally, the detection module 50 further comprises a hydraulic system G1 and a hydraulic control unit H1;
the hydraulic control unit H1 is arranged to control, in combination with the control circuit C1, the hydraulic system G1 to accomplish the opening or retraction of the probe and/or support arm.
Optionally, the processor B1 determines a fluid interface based on the formation fluid pressure measured by the pressure sensor, including:
a regression algorithm is performed to determine a fluid interface based on the formation fluid pressure differential measured by the pressure sensor.
EXAMPLE III
The present embodiment provides a detection method, as shown in fig. 6, including,
step 601, fixing the bus type multi-probe detection module in the first embodiment or the second embodiment at a preset position in a well;
step 602, a control circuit in the probing module controls to open at least one probe included in the bus-type multi-probe probing module for probing; when the detection is carried out, the pressure sensor corresponding to the opened probe measures the pressure of the formation fluid; a processor in the detection module determines a fluid interface based on the formation fluid pressure measured by the pressure sensor.
Optionally, the method further includes, step 603, sending the determined data of the fluid interface to other modules or devices outside the detection module through at least one bus interface of the detection module.
Optionally, in step 601, the control circuit in the detection module controls to open the supporting arm, and the detection module is fixed at a predetermined position in the well by using the thrust generated by the supporting arm to the wall of the well.
Optionally, the method further comprises, before step 601 is performed, step 600 of filling an accumulator in the multi-probe module with pressure.
The method further includes, upon a circuit failure (e.g., sudden power loss) of the multi-probe module, an accumulator in the multi-probe module using the stored energy to retract the opened probes and/or the opened support arms.
Optionally, the processor in the detection module determines a fluid interface according to the formation fluid pressure measured by the pressure sensor, including: a regression algorithm is performed to determine a fluid interface based on the formation fluid pressure differential measured by the pressure sensor.
It will be understood by those of ordinary skill in the art that all or part of the steps of the above embodiments may be implemented using a computer program flow, which may be stored in a computer readable storage medium and executed on a corresponding hardware platform (e.g., system, apparatus, device, etc.), and when executed, includes one or a combination of the steps of the method embodiments.
Alternatively, all or part of the steps of the above embodiments may be implemented by using an integrated circuit, and the steps may be respectively manufactured as an integrated circuit module, or a plurality of the blocks or steps may be manufactured as a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The devices/functional modules/functional units in the above embodiments may be implemented by general-purpose computing devices, and they may be centralized on a single computing device or distributed on a network formed by a plurality of computing devices.
Each device/function module/function unit in the above embodiments may be implemented in the form of a software function module and may be stored in a computer-readable storage medium when being sold or used as a separate product. The computer readable storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A bus-based multi-probe probing module, comprising:
a multi-probe combination unit comprising: a control circuit, at least three types of probes; wherein the control circuit is arranged to control the opening or retraction of the at least three types of probes, respectively, and the opening or closing of suction ports on the at least three types of probes, respectively; the pressure sensors are in one-to-one correspondence with the probes and are used for measuring the pressure of the formation fluid;
a processor configured to determine a fluid interface based on the formation fluid pressure measured by the pressure sensor;
and one or more bus interfaces for other modules to connect with the detection module.
2. The detection module of claim 1,
the detection module further comprises at least 3 support arms;
when the supporting arm is opened, the supporting arm is used for pushing against a well wall to increase the static friction force between the detection module and the well wall;
the control circuit is also used for controlling the opening and the retraction of the supporting arm.
3. The detection module of claim 2,
the detection module further comprises an accumulator;
the accumulator is configured to be charged to pressure prior to downhole operations;
the accumulator uses the stored energy to retract the probe and/or the support arm when the detection module is subject to a circuit failure.
4. The detection module according to claim 1 or 2,
the detection module also comprises at least three mechanical valves which correspond to the probes one by one;
the mechanical valve is arranged to be controlled by the control circuit to open or close the suction port on the probe.
5. The detection module of claim 2,
when the supporting arm is opened, the static friction force generated by pushing against the well wall is greater than the gravity of the detection module.
6. The detection module of claim 1, 2, 3 or 5,
the processor and the control circuit adopt an integrated circuit design;
the devices included in the detection module are at least devices which can still normally work when exposed to high temperature of 205 ℃.
7. The detection module of claim 2, 3 or 5,
the detection module further comprises a hydraulic system and a hydraulic control unit;
the hydraulic control unit is configured, in combination with the control circuitry, to control the hydraulic system to accomplish the opening or retraction of the probe and/or support arm.
8. The detection module of claim 1, 2, 3 or 5,
the processor determining a fluid interface from the formation fluid pressure measured by the pressure sensor, comprising:
a regression algorithm is performed to determine a fluid interface based on the formation fluid pressure differential measured by the pressure sensor.
9. A detection method is characterized by comprising the following steps,
fixing a bus-based multi-probe probing module according to any of claims 1-8 at a predetermined location downhole;
a control circuit in the detection module controls to open at least one probe included in the bus type multi-probe detection module for detection; when the detection is carried out, the pressure sensor corresponding to the opened probe measures the pressure of the formation fluid; a processor in the detection module determines a fluid interface based on the formation fluid pressure measured by the pressure sensor.
10. The detection method according to claim 9,
wherein the processor in the detection module determines a fluid interface based on the formation fluid pressure measured by the pressure sensor, comprising:
a regression algorithm is performed to determine a fluid interface based on the formation fluid pressure differential measured by the pressure sensor.
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Cited By (1)
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| US20240011394A1 (en) * | 2022-07-05 | 2024-01-11 | Halliburton Energy Services, Inc. | Single side determination of a first formation fluid-second formation fluid boundary |
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