CN108643886A - A kind of deep well annular space trapped pressure monitoring device and method - Google Patents
A kind of deep well annular space trapped pressure monitoring device and method Download PDFInfo
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- CN108643886A CN108643886A CN201810371188.9A CN201810371188A CN108643886A CN 108643886 A CN108643886 A CN 108643886A CN 201810371188 A CN201810371188 A CN 201810371188A CN 108643886 A CN108643886 A CN 108643886A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000000704 physical effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 5
- 241000269793 Cryothenia peninsulae Species 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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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
- E21B47/00—Survey of boreholes or wells
- E21B47/001—Survey of boreholes or wells for underwater installation
-
- 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
- E21B47/07—Temperature
-
- 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
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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- Engineering & Computer Science (AREA)
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- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Remote Sensing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Geophysics And Detection Of Objects (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention relates to a kind of deep well annular space trapped pressure monitoring device and methods, which is characterized in that the pressure monitoring device includes downhole hardware, signal receiver and ground installation；The signal receiver is fixedly connected at the well head of deep well, the signal receiver connects the ground installation；The inner layer sleeve outer wall of the deep well is fixedly connected with the downhole hardware, and the downhole hardware is used to measure the annular space temperature data of the deep water well shaft in real time and annular space trapped pressure data and is loaded into carrier signal and is sent to the signal receiver；The carrier signal that the ground installation is used to receive the signal receiver is decoded, and obtains the real-time annular space temperature data of the deep water well shaft and annular space trapped pressure data, the present invention can be widely applied in offshore oil gas well technical field.
Description
Technical field
The present invention relates to a kind of annular space trapped pressure monitoring device and methods, especially with regard to a kind of deep well annular space trap
Pressure monitoring device and method.
Background technology
Annular space trapped pressure increase APB (Annular Pressure Build-up) be cause since temperature raises it is closed
Each layer casing between fluid expansion in annular space, to make annular space trapped pressure increase.1999, the BP companies Gulf of Mexico
After a few hours of going into operation, production casing is squeezed to be ruined the oil fields Marlin A-2 wells；Gulf of Mexico Pompano A-31 wells are during drilling well
It is excessively high so as to cause trapped pressure since circulation of drilling fluid temperature is high so that casing collapse causes very big safety problem, therefore,
Reinforce the monitoring to annular space trapped pressure, formulate control measure in time, is of great significance to the safety in production of offshore oil gas well.
For land and shallow well, oil-lantern ring barren trap pressure, set-lantern ring barren trap pressure can at pithead position into
Row measures, and for deep well, often uses underwater well head, oil removing-lantern ring barren trap pressure can under water at pithead position into
Row measures, and set-lantern ring barren trap pressure is unable to measure, to be unable to reach the purpose monitored to annular space trapped pressure so that sea
There are the risks of deep well wellbore integrity for upper oil/gas well exploitation.
Invention content
In view of the above-mentioned problems, capableing of measuring unit-lantern ring barren trap pressure value in real time the object of the present invention is to provide a kind of
Deep well annular space trapped pressure monitoring device and method.
To achieve the above object, the present invention takes following technical scheme：A kind of deep well annular space trapped pressure monitoring device,
It is characterized in that, the pressure monitoring device includes downhole hardware, signal receiver and ground installation；It is fixed at the well head of deep well
The signal receiver is connected, the signal receiver connects the ground installation；The inner layer sleeve outer wall of the deep well is solid
Surely the downhole hardware is connected, the downhole hardware is used to measure the annular space temperature data and annular space of the deep water well shaft in real time
Trapped pressure data are simultaneously loaded into carrier signal and are sent to the signal receiver；The ground installation is used for the signal
The carrier signal that receiver receives is decoded, and obtains the real-time annular space temperature data of the deep water well shaft and annular space trap pressure
Force data.
Preferably, the downhole hardware includes antenna, signal generator, battery and temperature and pressure transmitter, the temperature
Pressure sensor is used to measure the annular space temperature data and annular space trapped pressure data of the deep water well shaft, the signal in real time
Generator is for the annular space temperature data measured in real time and annular space trapped pressure data to be loaded into carrier signal, and by carrier wave
Signal is sent to the signal receiver by the antenna, and the battery is used to supply for each electricity consumption device of the downhole hardware
Electricity.
Preferably, the downhole hardware is fixedly connected by a fixing device with the inner layer sleeve outer wall of the deep well.
Preferably, the antenna, signal generator, battery and temperature pressure are set gradually in the fixing device from top to bottom
Force snesor.
Preferably, the signal receiver connects the ground installation by umbilical cables.
A kind of deep well annular space trapped pressure monitoring method, which is characterized in that include the following steps：According to production status,
The annular space temperature prediction value and annular space trapped pressure predicted value of deep well pit shaft during setting production；According to the ring of deep water well shaft
Air temperature degree predicted value and annular space trapped pressure predicted value and measuring temperature data and the required time and signal of pressure data frequency
Rate selects corresponding downhole hardware；The downhole hardware of selection is fixedly connected with the inner layer sleeve outer wall of deep well, and this is interior
In layer casing tripping in deep well；The setting signal receiver at the well head of deep well, and signal receiver is connected into ground installation；
Downhole hardware measures the annular space temperature data of deep water well shaft in real time and annular space trapped pressure data are loaded into carrier signal, and
Emit around；Signal receiver receives the carrier signal, and is transferred to ground installation, and ground installation solves carrier signal
Code, obtains the real-time annular space temperature of deep water well shaft and annular space trapped pressure.
Preferably, according to production status, the annular space temperature prediction value of deep well pit shaft and annular space trap during setting production
Pressure prediction value, specially：Production period is set according to parameters such as Casing Program of Deepwater Well and reservoir temperatures using heat transfer equation
Between deep water well shaft annular space temperature prediction value；Using trapped pressure accounting equation, become according to the annular space temperature of deep water well shaft
The parameters such as change, Annular cutting body heat physical property set the annular space trapped pressure predicted value p of deep water well shaft：
Wherein, α is the coefficient of expansion；ktFor the compressed coefficient；Δ T is annular space temperature change；VanFor annular volume；ΔVanFor ring
Void volume changes.
Preferably, according to the annular space temperature prediction value of deep water well shaft and annular space trapped pressure predicted value, and temperature is measured
The required time and signal frequency of degrees of data and pressure data select corresponding downhole hardware, specially：Downhole hardware includes day
Line, signal generator, battery and temperature and pressure transmitter；According to the annular space temperature prediction value of deep water well shaft and annular space trap pressure
Power predicted value selects temperature and pressure transmitter range, it is ensured that the annular space temperature prediction value and annular space trapped pressure predicted value of setting
In temperature and pressure transmitter range ability；According to the required time and signal frequency of measuring temperature data and pressure data,
Select capacity, the frequency of signal generator and the frequency of antenna of battery, it is ensured that temperature and pressure transmitter holds in the battery of selection
It is measured in amount, Frequency Of Signal Generator and antenna frequencies and obtains required annular space temperature data and annular space trapped pressure data.
Preferably, downhole hardware is fixedly connected with the inner layer sleeve outer wall of deep well by fixing device.
Preferably, signal receiver connects ground installation by umbilical cables.
The invention adopts the above technical scheme, which has the following advantages：1, the present invention passes through the annular space in deep well
Downhole hardware is installed, is received the signal of annular space temperature data and annular space trapped pressure data transmission to well head by electromagnetic signal
In device, and then by annular space temperature data and annular space trapped pressure data transmission to ground installation, realize to deep well set-lantern ring
The monitoring of barren trap temperature and pressure is able to verify that the correctness of annular space trapped pressure theoretical model, thoroughly solves deep well ring
The problem that barren trap pressure can not be known provides safety guarantee for deep well Efficient Development.2, downhole hardware of the invention includes
Antenna, signal generator, battery and temperature and pressure transmitter can really measure deep well ring by temperature and pressure transmitter
Barren trap temperature value and pressure value, before measurements according to the annular space temperature prediction value of deep water well shaft and annular space trapped pressure
The required time and signal frequency of predicted value and measurement data select temperature and pressure transmitter, the suitable capacity of suitable range
Battery and suitable frequency signal generator, can improve deep well annular space trap temperature value and pressure value measure it is accurate
Property.3, the data transmission of signal generator and ground installation uses umbilical cables in the present invention, reduces the interference of data transmission, together
When improve transmission speed, also allow for realizing in deep water platform, while capableing of the measurement and transmission of the carry out data of real-time stabilization,
With higher stability, can be widely applied in offshore oil gas well technical field.
Description of the drawings
Fig. 1 is the structural schematic diagram of pressure monitoring device of the present invention.
Specific implementation mode
Come to carry out detailed description to the present invention below in conjunction with attached drawing.It should be appreciated, however, that attached drawing has been provided only more
Understand the present invention well, they should not be interpreted as limitation of the present invention.
As shown in Figure 1, deep well annular space trapped pressure monitoring device provided by the invention, including fixing device 1, underground dress
Set 2, signal receiver 3 and ground installation 4, wherein downhole hardware 2 includes antenna 21, signal generator 22, battery 23 and temperature
Pressure sensor 24, fixing device 1, which may be used, to fix temperature and pressure transmitter 24, battery 23 and signal generator 22
Arbitrary existing structure in the inner layer sleeve outer wall of deep well is set, is not repeated herein.
Signal receiver 3 is fixedly connected at the well head of deep well 5, signal receiver 3 connects ground installation by umbilical cables 6
4.1 side of fixing device is fixedly connected at the inner layer sleeve outer wall of deep well 5,1 other side of fixing device is provided with antenna 21, letter
Number generator 22, battery 23 and temperature and pressure transmitter 24.Temperature and pressure transmitter 24 for measuring 5 pit shaft of deep well in real time
Annular space temperature data and annular space trapped pressure data, the annular space temperature data and annular space that signal generator 22 is used to measure in real time
Trapped pressure data are loaded into carrier signal, and carrier signal is sent to signal receiver 3, ground installation by antenna 21
4 are decoded for the carrier signals that are received to signal receiver 3, obtain the real-time annular space temperature data of 5 pit shaft of deep well with
Annular space trapped pressure data, battery 23 are used to be powered for each consuming parts of downhole hardware 2.
In a preferred embodiment, antenna 21, signal generator are set gradually from top to bottom end in fixing device 1
22, battery 23 and temperature and pressure transmitter 24.
Based on above-mentioned deep well annular space trapped pressure monitoring device, the present invention also provides a kind of deep well annular space trapped pressures
Monitoring method includes the following steps：
1) according to production status, the annular space temperature prediction value and annular space trapped pressure of 5 pit shaft of deep well during setting production
Predicted value, wherein predicted value can be the maximum value of the maximum value and annular space trapped pressure of all operating mode middle ring air temperature degree, specifically
Process is：
1.1) heat transfer equation is used, according to parameters such as 5 casing programme of deep well and reservoir temperatures, deep water during setting production
The annular space temperature prediction value of 5 pit shaft of well, wherein heat transfer equation is the prior art, and this will not be repeated here for specific calculating process.
1.2) trapped pressure accounting equation is used, according to the annular space temperature change of 5 pit shaft of deep well, Annular cutting body heat physical property
Etc. parameters, set 5 pit shaft of deep well annular space trapped pressure predicted value p：
Wherein, p is annular space trapped pressure predicted value, unit MPa；α is the coefficient of expansion, and unit is DEG C-1；ktIt is for compression
Number, unit MPa-1；Δ T is annular space temperature change；VanFor annular volume, unit m3；ΔVanChange for annular volume, it is single
Position is m3。
2) according to the annular space temperature prediction value of 5 pit shaft of deep well and annular space trapped pressure predicted value and measuring temperature number
According to the required time and signal frequency with pressure data, the range of temperature and pressure transmitter 24, the capacity and letter of battery 23 are selected
The frequency of number generator 22, detailed process are：
2.1) according to the annular space temperature prediction value of 5 pit shaft of deep well and annular space trapped pressure predicted value, temperature, pressure is selected
The range of sensor 24, it is ensured that the annular space temperature prediction value and annular space trapped pressure predicted value of setting are located at temperature and pressure transmitter
In range ability.
2.2) according to the required time and signal frequency of measuring temperature data and pressure data, select battery 23 capacity,
The frequency of the frequency and antenna 21 of signal generator 22, it is ensured that battery 23 capacity, signal of the temperature and pressure transmitter 24 in selection
It is measured in 22 frequency of generator and 21 frequency of antenna and obtains required annular space temperature data and annular space trapped pressure data.
3) by the antenna of selection 21, signal generator 22, battery 23 and temperature and pressure transmitter 24 by fixing device 1 with
The inner layer sleeve outer wall of deep well 5 is fixedly connected, and will be in the inner layer sleeve tripping in deep well 5.
4) the setting signal receiver 3 at the well head of deep well 5, and signal receiver 3 is connected into ground by umbilical cables 6
Device 4.
5) temperature and pressure transmitter 24 measures the annular space temperature data and annular space trapped pressure number of 5 pit shaft of deep well in real time
According to above-mentioned measurement data is loaded into carrier signal by signal generator 22, and is emitted around by antenna 21.
6) signal receiver 3 receives the carrier signal, and is transferred to ground installation 4 by umbilical cables 6, and ground installation 4 is right
Carrier signal is decoded, and obtains the real-time annular space temperature of 5 pit shaft of deep well and annular space trapped pressure.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each component, connection type and manufacture craft etc. are all
It can be varied from, every equivalents carried out based on the technical solution of the present invention and improvement should not exclude
Except protection scope of the present invention.
Claims (10)
1. a kind of deep well annular space trapped pressure monitoring device, which is characterized in that the pressure monitoring device includes downhole hardware, letter
Number receiver and ground installation；
The signal receiver is fixedly connected at the well head of deep well, the signal receiver connects the ground installation；
The inner layer sleeve outer wall of the deep well is fixedly connected with the downhole hardware, and the downhole hardware is for described in measurement in real time
The annular space temperature data and annular space trapped pressure data of deep water well shaft are simultaneously loaded into carrier signal and are sent to the signal and connect
Receive device；
The carrier signal that the ground installation is used to receive the signal receiver is decoded, and obtains the deep water well shaft
Real-time annular space temperature data and annular space trapped pressure data.
2. a kind of deep well annular space trapped pressure monitoring device as described in claim 1, which is characterized in that the downhole hardware
Including antenna, signal generator, battery and temperature and pressure transmitter, the temperature and pressure transmitter for measuring the depth in real time
The annular space temperature data and annular space trapped pressure data of well pit shaft, the annular space temperature that the signal generator is used to measure in real time
Degrees of data and annular space trapped pressure data are loaded into carrier signal, and carrier signal is sent to the letter by the antenna
Number receiver, the battery are used to power for each electricity consumption device of the downhole hardware.
3. a kind of deep well annular space trapped pressure monitoring device as claimed in claim 2, which is characterized in that the downhole hardware
It is fixedly connected with the inner layer sleeve outer wall of the deep well by a fixing device.
4. a kind of deep well annular space trapped pressure monitoring device as claimed in claim 3, which is characterized in that the fixing device
On set gradually the antenna, signal generator, battery and temperature and pressure transmitter from top to bottom.
5. such as a kind of deep well annular space trapped pressure monitoring device of Claims 1-4 any one of them, which is characterized in that institute
It states signal receiver and connects the ground installation by umbilical cables.
6. a kind of deep well annular space trapped pressure monitoring method, which is characterized in that include the following steps：
According to production status, the annular space temperature prediction value and annular space trapped pressure predicted value of deep well pit shaft during setting production；
According to the annular space temperature prediction value of deep water well shaft and annular space trapped pressure predicted value and measuring temperature data and pressure
The required time and signal frequency of data, select corresponding downhole hardware；
The downhole hardware of selection is fixedly connected with the inner layer sleeve outer wall of deep well, and by the inner layer sleeve tripping in deep well
In；
The setting signal receiver at the well head of deep well, and signal receiver is connected into ground installation；
Downhole hardware measures the annular space temperature data of deep water well shaft in real time and annular space trapped pressure data are loaded into carrier signal
In, and emit around；
Signal receiver receives the carrier signal, and is transferred to ground installation, and ground installation is decoded carrier signal, obtains
The real-time annular space temperature of deep water well shaft and annular space trapped pressure.
7. a kind of deep well annular space trapped pressure monitoring method as claimed in claim 6, which is characterized in that according to production work
Condition, the annular space temperature prediction value and annular space trapped pressure predicted value of deep well pit shaft during setting production, specially：
Using heat transfer equation, according to parameters such as Casing Program of Deepwater Well and reservoir temperatures, deep well pit shaft during setting production
Annular space temperature prediction value；
Using trapped pressure accounting equation, according to parameters such as the annular space temperature change of deep water well shaft, Annular cutting body heat physical property, if
The annular space trapped pressure predicted value p of depthkeeping well pit shaft：
Wherein, α is the coefficient of expansion；ktFor the compressed coefficient；Δ T is annular space temperature change；VanFor annular volume；ΔVanFor annular space body
Product variation.
8. a kind of deep well annular space trapped pressure monitoring method as claimed in claim 6, which is characterized in that according to deep well well
The annular space temperature prediction value and annular space trapped pressure predicted value and measuring temperature data and the required time of pressure data of cylinder and
Signal frequency selects corresponding downhole hardware, specially：
Downhole hardware includes antenna, signal generator, battery and temperature and pressure transmitter；
According to the annular space temperature prediction value of deep water well shaft and annular space trapped pressure predicted value, temperature and pressure transmitter amount is selected
Journey, it is ensured that the annular space temperature prediction value and annular space trapped pressure predicted value of setting are located in temperature and pressure transmitter range ability；
According to the required time and signal frequency of measuring temperature data and pressure data, capacity, the signal generator of battery are selected
Frequency and antenna frequency, it is ensured that temperature and pressure transmitter the battery capacity of selection, Frequency Of Signal Generator and antenna frequency
It is measured in rate and obtains required annular space temperature data and annular space trapped pressure data.
9. a kind of deep well annular space trapped pressure monitoring method as claimed in claim 6, which is characterized in that downhole hardware passes through
Fixing device is fixedly connected with the inner layer sleeve outer wall of deep well.
10. a kind of deep well annular space trapped pressure monitoring method as claimed in claim 6, which is characterized in that signal receiver
Ground installation is connected by umbilical cables.
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| CN201810371188.9A CN108643886B (en) | 2018-04-24 | 2018-04-24 | Deep well annulus trapping pressure monitoring device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736780A (en) * | 2019-01-11 | 2019-05-10 | 中科云声(苏州)电子科技有限公司 | A kind of remote detection imaging of sound wave and evaluation system for the detection of offshore wind farm column foot |
| CN114439468A (en) * | 2022-01-17 | 2022-05-06 | 中国海洋石油集团有限公司 | Casing annulus pressure real-time monitoring system of underwater wellhead |
| CN115370322A (en) * | 2022-09-28 | 2022-11-22 | 北京化工大学 | Prediction method for annulus under pressure based on good integrity of shaft |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736780A (en) * | 2019-01-11 | 2019-05-10 | 中科云声(苏州)电子科技有限公司 | A kind of remote detection imaging of sound wave and evaluation system for the detection of offshore wind farm column foot |
| WO2020143187A1 (en) * | 2019-01-11 | 2020-07-16 | 中科云声(苏州)电子科技有限公司 | Far-field acoustic sensing and imaging and evaluation system for surveying offshore wind turbine tower foundation |
| CN114439468A (en) * | 2022-01-17 | 2022-05-06 | 中国海洋石油集团有限公司 | Casing annulus pressure real-time monitoring system of underwater wellhead |
| CN115370322A (en) * | 2022-09-28 | 2022-11-22 | 北京化工大学 | Prediction method for annulus under pressure based on good integrity of shaft |
| CN115370322B (en) * | 2022-09-28 | 2023-10-20 | 北京化工大学 | Well-shaft-integrity-based prediction method for annular space pressure |
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