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Method and device for detecting and processing secondary well controlling parameters after primary well controlling failure

A processing method and parameter detection technology, applied in the direction of wellbore/well components, measurement, earthwork drilling and production, etc.

Active Publication Date: 2015-05-20
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If these advanced technologies are used in well control operations to form a method and device for detecting and processing parameters of secondary well killing after primary well killing failure, there is no doubt that the success rate of secondary well killing will be greatly improved.

Method used

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  • Method and device for detecting and processing secondary well controlling parameters after primary well controlling failure
  • Method and device for detecting and processing secondary well controlling parameters after primary well controlling failure
  • Method and device for detecting and processing secondary well controlling parameters after primary well controlling failure

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Embodiment 1

[0027] Embodiment 1: as figure 1 , figure 2 As shown, the present invention can obtain the available well site logging and related data in real time after the failure of the primary well killing, and quickly select the killing method and parameter design of the secondary well killing through the computer program. After the well fails, the secondary kill can be performed quickly and accurately, the success rate of the secondary well kill is greatly improved, and the harm caused by the overflow blowout is significantly reduced.

[0028] In order to achieve the above object, the present invention is achieved through the following technical solutions:

[0029] (1) The detection and processing method and device for secondary well-killing parameters after the primary well-killing failure is obtained and established through the software system and hardware system, and the static parameter database related to well control in this area, the world-wide well control case database, and ...

Embodiment 2

[0042] Embodiment 2: The present invention relates to rapid well kill parameter design after the first well kill fails after the well is shut in due to overflow.

[0043] First, use the killing parameter acquisition system of the present invention to connect with the killing parameter sensor and comprehensive logging devices, and collect the standpipe pressure, casing pressure, killing fluid performance parameters and blowout and throttling parameters during a well killing process. and other important kill parameters; the key point is to draw the vertical pressure and casing pressure in the process of a well kill, and the curve of the wellhead overflow with time, so as to provide data basis for the analysis of the failure cause of a well kill.

[0044] Again, using the well killing parameter database in the present invention, the well killing parameters that have been collected are classified and stored in the corresponding database, and the data in this database can be directl...

Embodiment 3

[0049] Embodiment 3: as image 3 As shown, the second kill parameter detection and processing device after the primary kill fails, the force pressure sensor 1, the casing pressure sensor 2, the pumping sensor 3, the outlet flow sensor 4, and the inlet flow sensor 5 are respectively connected to the filter circuits 6, 7, and 8 , 9, 10, the filter circuit 6, 7, 8, 9, 10 is connected to the multi-way selector switch 11, the multi-way selector switch 11 is connected to the program-controlled amplifier circuit 12, and the program-controlled amplifier circuit 12 is connected to the A / D digital-to-analog converter 13, A / D D The digital-to-analog converter 13 is connected to the data collection and processing device 14 , and the data collection and processing device 14 is connected to the display device 15 , the alarm device 16 , the storage device 17 and the storage device 18 . Data collection and processing device 14 is prior art, and alarm device 16, program-controlled amplifier ci...

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Abstract

The invention discloses a method and device for detecting and processing secondary well controlling parameters after the primary well controlling failure, and belongs to the technical field of well controlling of petroleum drilling. A static parameter database relevant to well controlling in an area , a well controlling case database within the world range, a dynamic parameter database of well drilling and a well controlling parameter design program base are obtained and built according to a software system and a hardware system, and on the basis of well controlling programs of the well controlling parameter design program base, the various databases are utilized for designing the secondary well controlling parameters so as to guide and implement secondary well controlling; in the process of implementing secondary well controlling, the dynamic parameter database is continuously expanded; after secondary well controlling is completed, data are expanded to the well controlling case database; and static parameters in the static parameter database relevant to well controlling in the area comprises a geologic structure in the area, porosity and permeability of the stratum, stratum rock lithological characters, the stratum fluid phase state, stratum pressure and temperature distribution and other parameters relevant to well controlling design.

Description

technical field [0001] The invention relates to a method and a device for detecting and processing secondary well killing parameters after primary well killing fails, and belongs to the technical field of oil drilling well control. Background technique [0002] Drilling must be used to provide the necessary information and material channels for oil exploration and development, and worldwide, drilling costs account for more than 50% of the total cost of oil and gas exploration and development. If the safety of oil drilling and development is guaranteed, drilling costs will be greatly reduced. From the land drilling blowout accidents over the years, such as the 12.23 drilling blowout accident in Kaixian County, Chongqing in 2003, the Qingxi 1 well blowout accident in Sichuan in 2006, and the Sichuan oil and gas field Qionglai No. According to the Deepwater Horizon blowout explosion accident in the US Gulf of Mexico in 2011 and the Penglai oil spill accident in Bohai Bay in 201...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00E21B49/00
CPCE21B47/06E21B49/00E21B49/08
Inventor 牛蕴李轶明罗方伟李相方孙文勇任美鹏梁爽隋秀香胡家顺石军太刘文才朱连旺
Owner BC P INC CHINA NAT PETROLEUM CORP
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