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Method and system for optimizing tripping speed threshold value of drilling well

A speed threshold and tripping technology, which is applied in design optimization/simulation, instrumentation, electrical digital data processing, etc., can solve the problems of limiting tripping operation efficiency, no drilling tripping speed threshold, well kick and lost circulation, etc.

Pending Publication Date: 2021-09-10
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

At present, the upper limit of the tripping speed threshold at the drilling site refers to the specified value in the driller’s operating standards. Although the tripping speed threshold specified in the standard is conservative in most cases, it is not suitable for some complex formations that are prone to leakage or surge. , may still cause complex situations such as well kick and lost circulation due to large fluctuations in the well pressure; Efficiency improvement
In the theoretical model calculation method, the existing model can only calculate the pressure fluctuation in the well according to the tripping speed, but it cannot calculate and recommend the optimal tripping speed
[0004] The methods, devices and systems provided in the prior art all have similar problems, and there is no method and system for optimizing the tripping speed threshold of the drilling well

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  • Method and system for optimizing tripping speed threshold value of drilling well
  • Method and system for optimizing tripping speed threshold value of drilling well
  • Method and system for optimizing tripping speed threshold value of drilling well

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Embodiment Construction

[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples thereby using techniques for application techniques to solve technical problems, and achieve the implementation process of the corresponding technical effects can fully understand and implement. In the present application embodiment, each of the features in the examples, in the premise of non-phase conflict, the technical solution formed is within the scope of the invention.

[0026] In addition, the steps shown in the drawings can be performed in a computer system such as a set of computer executable instructions. Although the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in the order in which it is in the order here.

[0027] The drilling speed has improved the core problem of drilling projects. With the oil and gas exploration and development to deep complex oil and gas reservoirs, it i...

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Abstract

The invention discloses a method and a system for optimizing a tripping speed threshold value of a drilling well. The method comprises the following steps: matching a similar adjacent well similar to a target well from all adjacent wells in a block where the target well is located; determining adjacent well data of the matched similar adjacent wells are obtained and analyzed, and tripping speed values of all the similar adjacent wells at all the layers when no risk exists; according to the stratum layering of the target well, the highest tripping speed value in the similar adjacent wells is selected from the determined tripping speed values layer by layer, and an optimization scheme of the tripping speed threshold value of the target well is formed; and in the process of executing tripping on the target well, whether the tripping speed threshold value recommended by the optimization scheme can generate a drilling risk or not is analyzed in real time, and the tripping speed threshold value is dynamically updated and optimized according to the analysis condition. On the premise of safe operation, high-speed tripping operation is achieved, tripping operation time is shortened, drilling operation efficiency is improved, and cost is reduced.

Description

Technical field [0001] The present invention belongs to the field of petroleum engineering, and in particular, a method of optimizing the upper limit of the target well drilling speed threshold upper limit of the target well drilling during the drilling process. Background technique [0002] With the development of oil and gas exploration, the geological conditions faced by drilling projects are increasingly complex. Under complex geological conditions, drilling costs with low drilling, and high complexity and high, highly drilling costs have seriously affected oil and gas exploration and development efficiency, and speed up the improvement has become an important breakthrough point for drilling projects. The total time of the drilling operation includes production time and non-production time, where production time includes working hours, logging hours, cementing hours and auxiliary working hours, including pure drilling work, and drill work Time, single root working time, expan...

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Application Information

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IPC IPC(8): G06F30/20G06F119/14
Inventor 杨传书张好林孙旭付宣
Owner CHINA PETROLEUM & CHEM CORP
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