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Enhancing complex fracture geometry in subterranean formations, sequential fracturing

机译：增强地下地层的复杂裂缝几何形状，顺序压裂

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摘要

Methods including introducing a first high-viscosity treatment fluid (HVTF) into a subterranean formation through an opening and applying incrementally increased fracturing rate steps (IIFRSs) to the first HVTF to create or enhance a dominate fracture, wherein between each IIFRS applied to the first HVTF a downhole pressure slope over time will increase, decline, or stabilize at a first HVTF measured pressure slope. Evaluating the first HVTF measured pressure slope prior to applying a subsequent IIFRS to the first HVTF. Introducing a first low-viscosity treatment fluid (LVTF) through the opening to create or enhance a secondary azimuth fracture extending from the dominate fracture, and introducing a low-viscosity diversion fluid pill (LVDF) pill through the opening to create a fluidic seal therein.

机译：方法包括：通过开口将第一高粘度处理液（HVTF）引入地下地层，并对第一HVTF施加递增的压裂速率步骤（IIFRS），以产生或增强主要裂缝，其中，将每个IIFRS应用于第一层HVTF随时间变化的井底压力斜率将增加，下降或稳定在第一个HVTF测量的压力斜率。在将后续IIFRS应用于第一个HVTF之前，评估第一个HVTF测得的压力斜率。通过开口引入第一低粘度治疗液（LVTF）以创建或增强从主要裂缝延伸的次级方位角裂缝，并通过开口引入低粘度转向流体药丸（LVDF）药丸以在其中形成流体密封。

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公开/公告号US10428633B2

专利类型
公开/公告日2019-10-01

原文格式PDF
申请/专利权人 HALLIBURTON ENERGY SERVICES INC.;
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申请/专利号US201515754574
发明设计人 PHILIP D. NGUYEN;MATTHEW LEWIS LAHMAN;JESSE CLAY HAMPTON;VLADIMIR NIKOLAYEVICH MARTYSEVICH;STEPHEN BYRNE PERSAC;SHEA NICHOLAS EVANS;
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申请日2015-09-23
分类号E21B43/267;C09K8/62;C09K8/80;E21B47/06;
国家 US
入库时间 2022-08-21 12:16:02

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