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Completion design method by bottom water reservoir horizontal well segregated water control

A bottom-water reservoir and design method technology, applied in the direction of wellbore/well components, earthwork drilling and production, production fluid, etc., can solve the problems of not being able to meet the requirements of rapid well completion, various types of data, time-consuming and labor-intensive, etc., and achieve extension The effect of water-free recovery period

Inactive Publication Date: 2014-05-14
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

At present, the segmented completion design of horizontal wells is mainly realized by numerical simulation method. Numerical simulation method requires a lot of data, which is difficult to collect, time-consuming and labor-intensive, and cannot meet the requirements of rapid completion of horizontal wells on site.

Method used

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  • Completion design method by bottom water reservoir horizontal well segregated water control
  • Completion design method by bottom water reservoir horizontal well segregated water control
  • Completion design method by bottom water reservoir horizontal well segregated water control

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Embodiment Construction

[0047] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0048] The method for designing the completion of horizontal wells in bottom water reservoirs with segmental water control according to the present invention mainly performs the construction design of well completion with segmental water control through segmental optimization design and optimization design of horizontal wells in bottom water reservoirs. This method first comprehensively analyzes the influencing factors of water-control completion of horizontal wells in bottom-water reservoirs, establishes the corresponding segmentation principles, and carries out the design of segmental optimization schemes; then, according to the established The relationship between water breakthrough time and production capacity of the well section, using the principle of consistent water breakthrough time and the minimum total additional see...

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Abstract

A completion design method by bottom water reservoir horizontal well segregated water control includes the steps of determining horizontal well water control well sections by analyzing and determining the well sections needing to be packed during segregated completion according to collected data information, and defining final water control well sections; performing optimization design of a segregated scheme by determining reasonable segregated number and segregated length according to the final water control well sections; performing optimization design of a completion scheme by taking minimum difference of water breakthrough time of the water control well sections of the segregated scheme and minimum completion total additional percolating resistance as a principle, optimizing to obtain reasonable liquid production capacity and additional resistance values of the water control well sections, and determining throttling passage parameters of the water control well sections; and performing horizontal well segregated water control completion construction by performing construction of the water control completion scheme according to the reasonable liquid production capacity, the additional resistance values and the throttling passage parameters, and controlling the liquid production capacity of each water control well section to achieve water control and oil stabilization.

Description

technical field [0001] The present invention relates to a segmented well completion technology for a horizontal well, in particular to a segmental water-controlled completion design and construction of a bottom-water reservoir horizontal well completion with segmented water control through the segmental optimization design of the horizontal well and the well completion optimization design design method. Background technique [0002] It has been several decades since the idea of ​​horizontal well fluid production profile technology was put forward, and domestic and foreign research institutions and production units have also made a lot of explorations. At present, relatively mature technologies include horizontal well variable density perforation technology and horizontal well separation technology. well completion technology. Horizontal well variable density perforation technology is a technology to adjust the liquid production profile of horizontal wells by changing the pe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/14E21B43/12
Inventor 冯其红黄兴张先敏
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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