酸化/刺激

研究调查酸压裂对致密储层岩石的无效性

本文描述了对致密碳酸盐岩地层酸压裂实际性能数据的分析，以调查该工艺的无效性。

测试 (a) 之前和测试 (b) 之后，来自 7,575 英尺深度、15% ZCA、110°F 的导电通道形成核心。
图 1——测试前 (a) 和测试后 (b)，110°F 下 7,575 英尺深度的导电通道形成芯，具有 15% ZCA。
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完整的论文描述了对致密碳酸盐岩地层酸压裂实际性能数据的分析，以及通过生产井的性能响应来衡量该过程的无效性。包含的案例研究涉及致密地层，该地层被视为储层而不是烃源岩。地层渗透率在0.1～5md范围内。开发已通过大量水平井进行，并进行了有限的多级酸增产。

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Acidizing/stimulation

Study Investigates Ineffectiveness of Acid Fracturing for Tight Reservoir Rock

This paper describes the analysis of actual performance data for acid fracturing in a tight carbonate formation to investigate the ineffectiveness of the process.

Conductive channel-formation core from a depth of 7,575 ft with 15% ZCA at 110°F before test (a) and after test (b).
Fig. 1—Conductive channel-formation core from a depth of 7,575 ft with 15% ZCA at 110°F before test (a) and after test (b).
 

The complete paper describes the analysis of actual performance data for acid fracturing in a tight carbonate formation and the ineffectiveness of the process as measured by the performance responses of the producing wells. An included case study relates to a tight formation that is considered a reservoir rather than a source rock. The formation permeability is in the range of 0.1–5 md. Development has been through numerous horizontal wells with limited multistage acid stimulation.

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