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Horizontal well cuttings bed treatment method and device

A cuttings bed and horizontal well technology, applied in the field of oil drilling, can solve the problems of not having a complete cuttings bed cleaning plan

Pending Publication Date: 2022-04-22
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

However, the use of these sand cleaning methods is mostly determined according to the experience of on-site workers, and there is no complete cuttings bed cleaning plan

Method used

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  • Horizontal well cuttings bed treatment method and device
  • Horizontal well cuttings bed treatment method and device
  • Horizontal well cuttings bed treatment method and device

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0036] The term "and / or" in this article only describes an association relationship, which means that there can be three kinds of relationships, for example, A and / or B can mean: there is A alone, A and B exist at the same time, and B exists alone. situation. In addition, the term "at least one" herein means any one of a variety or any combination of at least two of the more, for example, including at least one of A, B, and C, which may mean including from A, Any one or more elements selected from the set formed by B and C.

[0037] In the description of this specif...

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Abstract

The invention discloses a horizontal well cuttings bed processing method and device.The method comprises the steps that according to horizontal well drilling engineering information, the distribution pattern of a cuttings bed in the whole drilling process is predicted, and the tripping-in position of a cuttings cleaning tool of each well section is predicted; calculating the actual cuttings bed height of each well section; the predicted tripping-in position of the rock debris cleaning tool of each well section is corrected; according to the drilling return rock debris percentage, the drilling rock debris particle size distribution offset degree and the drilling hook load hanging load change rate in the drilling process, the rock debris bed height risk grade of each well section is determined; associating different cuttings bed height risk grades with different cuttings bed clearing schemes; and for each well section, outputting the correction data of the tripping-in position of the cuttings cleaning tool of the well section and the cuttings bed clearing scheme associated with the cuttings bed height risk level of the well section. The accuracy and efficiency of horizontal well cuttings bed treatment can be improved, and the problem of accumulation of the horizontal well cuttings bed is effectively solved.

Description

technical field [0001] The invention relates to the technical field of petroleum drilling, in particular to a method and a device for treating a cuttings bed of a horizontal well. Background technique [0002] This section is intended to provide a background or context to embodiments of the invention that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] At present, the increasing difficulty of exploration and development has prompted the emergence and development of new cobalt well technologies and processes. Horizontal well drilling technology is favored by the drilling industry for its high reservoir discovery rate, high production capacity and low "cost per ton of oil". The proportion of wells completed using this method is increasing year by year, especially with the successful application in unconventional reservoirs such as fractured reservoirs, thin reservoirs and low permeability reservoirs, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B21/00E21B21/01E21B21/06E21B47/00
CPCE21B21/00E21B21/01E21B21/06E21B47/00
Inventor 纪国栋黄洪春崔猛陈畅畅刘力于璟武强张佳伟毕文欣周翠平
Owner BC P INC CHINA NAT PETROLEUM CORP
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