酸化/刺激

自主流量控制装置优化基质酸化刺激

本文作者写道，自主流出控制装置可以通过提供最佳的一致性对基质酸化产生积极影响。

图 1——AOCD 阀门处于打开（左）和关闭（右）位置的横截面。
图 1——AOCD 阀门处于打开（左）和关闭（右）位置的横截面。
来源：SPE 221914。

基质酸化的挑战仍然是如何沿井筒均匀分布酸液。酸液更倾向于沿井筒高渗透条纹或裂缝等抗渗性较差的部位。为了应对这一挑战，实施了由自主流出控制装置 (AOCD) 组成的完井方案。本文通过建模开发了一种新方法，以证明自主流出控制装置在增产作业中能够发挥巨大价值。

AOCD技术

本文专门讨论了 AOCD 在酸化作业中的应用，将其作为注入井的一种选择，而不管计划的作业如何。

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原文链接/JPT
Acidizing/stimulation

Autonomous Flow-Control Devices Optimize Matrix Acid Stimulation

The authors of this paper write that autonomous outflow-control devices can positively affect matrix acidizing by providing the best possible conformance.

Fig. 1—Cross section of an AOCD valve in open (left) and closed (right) positions.
Fig. 1—Cross section of an AOCD valve in open (left) and closed (right) positions.
Source: SPE 221914.

The challenge of matrix acidization remains the fair distribution of the acid treatment along the wellbore. Acid prefers the less-resistant spots along the wellbore characterized by high-permeability streaks or fractures. To counter this challenge, a completion consisting of autonomous outflow-control devices (AOCD) was implemented. In the complete paper, a novel approach is developed through modeling to demonstrate that autonomous flow-control devices can provide substantial value in stimulation operations.

AOCD Technology

This paper is specific to the use of AOCD in acid-stimulation operations, presenting it as an option for injection wells irrespective of the planned operation.

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