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Design method of anti-fracturing interference track around the barrier

A design method and obstacle avoidance technology, applied in design optimization/simulation, earthwork drilling, wellbore/well components, etc., can solve problems such as high friction torque, difficult trajectory control, and difficult construction design of obstacle orbit, etc. Achieve the effect of avoiding gas intrusion and fracturing interference

Active Publication Date: 2022-07-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the construction design of infill well orbiting track in fracturing area is difficult, and there are problems such as high frictional torque and difficult track control.

Method used

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  • Design method of anti-fracturing interference track around the barrier
  • Design method of anti-fracturing interference track around the barrier
  • Design method of anti-fracturing interference track around the barrier

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Embodiment Construction

[0047] The present invention will be further described below with reference to the accompanying drawings.

[0048] like figure 1 As shown, the present invention provides a method for designing an anti-fracturing interference orbit around a barrier, which includes the following steps:

[0049] Step a: Based on the anti-collision scanning result, it is judged whether to carry out the obstacle bypass design, if yes, execute step b; if not, end.

[0050] Specifically, it is judged whether to carry out the obstacle bypass design according to whether the distance between the designed well obtained after the anti-collision scan and the adjacent well of the designed well satisfies the preset obstacle bypass condition. If the distance between the designed well and the adjacent wells of the designed well satisfies the preset obstacle circumvention condition, execute step b (execute the obstacle bypass design); if not, do not execute the obstacle bypass design and end.

[0051] That is...

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Abstract

The invention relates to a method for designing an anti-fracturing interference obstacle-circling track, and relates to the technical field of oil and gas drilling. The anti-fracturing interference obstacle orbit design method of the present invention is based on fine-tuning the target point to design the anti-fract interference obstacle orbit. Up to the practical difficulty conditions, without increasing the difficulty of engineering practice, the safety circumvention is achieved.

Description

technical field [0001] The invention relates to the technical field of oil and gas drilling, in particular to a method for designing a fracturing and interference barrier orbiting track. Background technique [0002] The Fuling shale gas field is the first shale gas field in my country that has been put into commercial development, and has now built a production capacity of 10 billion cubic meters. In the early stage, some wells in the Fuling shale gas field were widely spaced, about 600m-1300m. In order to further improve the production rate of resource reserves, the well spacing was shortened to 300m-400m by deploying infill wells. Deploy infill wells in the existing fracturing dense well pattern, and the wellbore trajectories in the downhole three-dimensional space are intersected. , and also need to prevent fracturing interference. [0003] The previous drilling practice shows that due to fracturing interference, gas intrusion, overflow, and collusion of fracturing fra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/30G06F30/20
CPCE21B43/30
Inventor 臧艳彬张洪宁王怡张金成刘卫东张建龙陈小锋刘建华邢树宾刘劲歌
Owner CHINA PETROLEUM & CHEM CORP