公开(公告)号：US20140352949A1

公开(公告)日：2014-12-04

申请号：US14288677

申请日：2014-05-28

Applicant: CONOCOPHILLIPS COMPANY

Inventor： David Victor AMENDT ,  Pijush Kanti PAUL ,  Seth BUSETTI ,  Richard Allen SCHULTZ

IPC: E21B47/00 ,  E21B49/00

CPC classification number: E21B43/26

Abstract: The invention relates to the calculation of parameters to inform hydraulic stimulation of non-conventional hydrocarbon-bearing rock formations, such as shales. Unlike conventional formations, non-conventional formations tend to display elastic-plastic behavior and have stress-strain characteristics which with substantial non-linear regions. A parameter which has been termed Elastic Index (EI) is proposed, together with a demonstration of how this parameter, when coupled with principles of fracture mechanics, may be used to extract meaningful calculated or estimated values for e.g.; total required volume of fracturing fluid; treating pressure; fracturing fluid viscosity; proppant size; and proppant concentration.

Abstract translation: 本发明涉及用于指示诸如页岩之类的非常规含烃岩层的液压刺激的参数的计算。 与常规地层不同，非常规地层倾向于显示出弹性 - 塑性行为并且具有基本非线性区域的应力 - 应变特性。 提出了一种被称为弹性指数（EI）的参数，同时还展示了如何将此参数与断裂力学原理结合使用，以提取有意义的计算或估计值。 压裂液总需量; 治疗压力; 压裂液粘度; 支撑剂尺寸; 和支撑剂浓度。