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A Completion Method of Integrated Intelligent Sand Control Pipe String under Self-spraying Machine Production Conditions

A kind of sand control pipe and intelligent technology, applied in the direction of production fluid, drill pipe, casing, etc., can solve the problems of poor accuracy, low efficiency, single downhole information monitoring point, etc., and achieve the effect of the least production cost

Active Publication Date: 2021-09-24
CHINA UNIV OF PETROLEUM (EAST CHINA) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the intelligent completion technology involved in the development of deepwater oil and gas fields mainly focuses on intelligent decision-making. Through the combination of wellhead production data and platform production intelligent system, after data inversion calculation, the corresponding operating system command is issued to complete the decision. To operate, the execution rate is slow, the efficiency is low, and the accuracy is poor
In addition, the supporting assembly of traditional intelligent well completion technology still has single downhole information monitoring points, high delay in downhole data transmission speed, slow surface data acquisition, analysis and processing speed, high risk of wellbore sand clogging during production, and inability to replenish formation energy in the later stage of production and development. and other problems seriously affect the safe and efficient development of deepwater oil and gas fields

Method used

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  • A Completion Method of Integrated Intelligent Sand Control Pipe String under Self-spraying Machine Production Conditions
  • A Completion Method of Integrated Intelligent Sand Control Pipe String under Self-spraying Machine Production Conditions
  • A Completion Method of Integrated Intelligent Sand Control Pipe String under Self-spraying Machine Production Conditions

Examples

Experimental program
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Effect test

Embodiment 1

[0064] An intelligent sand control pipe string integrated with self-spraying machine mining working conditions, including a pipe string, a downhole information monitoring and transmission system, and an downhole intelligent control system.

[0065] The tubing string includes tubing, casing, and riser. The tubing and casing outside the tubing form an annular passage. The flow control device is equipped with a cylindrical screen tube group outside the bottom of the oil pipe, and the cylindrical screen tube group is used to screen impurities.

[0066] The underground intelligent control system includes data processing station, photoelectric signal demodulator, platform command control cable, hydraulic control box and hydraulic control pipeline. The data processing station is connected with photoelectric signal demodulator, and the data processing station is connected with hydraulic control box, hydraulic Pipeline connection, platform command control cable is connected with data p...

Embodiment 2

[0069] An intelligent sand control pipe string integrated with self-spraying machine production conditions, its structure is as described in Embodiment 1, the difference is that the casing includes technical casing and surface casing, the outside of the tubing is technical casing, and the technical casing The outside is a surface casing.

Embodiment 3

[0071] An integrated intelligent sand control pipe string for self-spraying machine mining working conditions, its structure is as described in Embodiment 1, the difference is that the number of permanent sensor groups is five, and the first permanent sensor group is placed at the bottom of the tubing. The second permanent sensor group is placed in the middle of the underground part of the oil pipe, the third permanent sensor group is placed on the top of the underground part of the oil pipe, the fourth permanent sensor group is placed on the top of the above-ground part of the oil pipe, and the fifth permanent sensor The group is placed behind the choke of the production well.

[0072] The location distribution of the permanent sensor group is as follows:

[0073] Ⅰ. The first permanent sensor group is installed above the downhole production layer, with a distance of 20m from the downhole production layer;

[0074] Ⅱ. The second sensor group is installed 600m below the deep ...

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Abstract

The invention relates to an integrated intelligent sand control pipe string and well completion method under the working conditions of self-spraying machines, belonging to the technical field of deep water oil and gas well development, including pipe strings, downhole information monitoring and transmission systems, downhole intelligent control systems; downhole information monitoring and The monitoring data obtained by the transmission system is transmitted to the downhole intelligent control system through the data transmission cable, and the signal is converted in time through the photoelectric signal demodulator. Analysis, reminding deep-water operators or issuing automatic operation instructions, the throttling flow control device completes the stepless adjustment of downhole production flow by combining the switch states of multiple throttle holes, and can simultaneously complete bottom hole self-spraying and oil and gas mechanical recovery, Realize the optimization of deep-water oil and gas field development, improve operating efficiency, reduce production procedures, and reduce development costs.

Description

technical field [0001] The invention relates to an integrated intelligent sand control pipe string and well completion method under self-spraying machine mining working conditions, and belongs to the technical field of deep-water oil and gas well development. Background technique [0002] With the extensive use of oil and gas resources, some oilfields that have been put into production have gradually entered the late stage of high water cut, and the heterogeneity of oil layers has increased, porosity has decreased, permeability has weakened, and production efficiency has gradually decreased. With the development of oil and gas exploration technology, oil and gas reservoirs located in extremely difficult exploration areas such as deep water have been gradually discovered by the world, but the reservoir characteristics are becoming more and more complex, and the harsh environmental conditions make development more and more difficult. Conventional technology It has been unable ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/00E21B33/06E21B43/08E21B43/12
CPCE21B17/00E21B33/06E21B43/086E21B43/121
Inventor 王志远张伟国金颢杜庆杰孙小辉童仕坤曹波波李勇李波孙宝江秦世利魏裕森阮刚
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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