公开(公告)号：US10287874B2

公开(公告)日：2019-05-14

申请号：US15453650

申请日：2017-03-08

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Ge Jin ,  Charles C. Mosher ,  Frank P. Filice ,  Kyle R. Krueger ,  Ali Tura ,  Baishali Roy ,  Dana M. Jurick

IPC: E21B47/10 ,  E21B47/12 ,  E21B47/022 ,  G01K11/32 ,  G01H9/00 ,  G01V1/22 ,  G01V1/40

Abstract: A method of monitoring hydraulic fracturing using DAS sensors in a treatment well and/or observation well is described. The raw data is transformed using a low pass filter (≤0.05 Hz) and down-sampled to show the signal as the stimulation progresses. The resulting data can be used to optimize the hydraulic fracturing or improve reservoir models for other reservoirs.

公开(公告)号：US10458228B2

公开(公告)日：2019-10-29

申请号：US15453434

申请日：2017-03-08

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Ge Jin ,  Charles C. Mosher ,  Frank P. Filice ,  Kyle R. Krueger ,  Baishali Roy ,  Ali Tura ,  Dana M. Jurick

IPC: E21B47/12 ,  G01V1/22 ,  E21B47/022 ,  G01H9/00 ,  E21B47/10 ,  G01K11/32 ,  G01V1/40

Abstract: The invention relates to DAS observation has been proven to be useful for monitoring hydraulic fracturing operations. While published literature has shown focus on the high-frequency components (>1 Hz) of the data, this invention discloses that much of the usable information may reside in the very low frequency band (0-50 milliHz). Due to the large volume of a DAS dataset, an efficient workflow has been developed to process the data by utilizing the parallel computing and the data storage. The processing approach enhances the signal while decreases the data size by 10000 times, thereby enabling easier consumption by other multi-disciplinary groups for further analysis and interpretation. The polarity changes as seen from the high signal to noise ratio (SNR) low frequency DAS images are currently being utilized for interpretation of completions efficiency monitoring in hydraulically stimulated wells.

公开(公告)号：US10338242B2

公开(公告)日：2019-07-02

申请号：US15157567

申请日：2016-05-18

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Roman Kazinnik ,  Michael Davidson ,  Ali Tura ,  Aaron L. Janssen ,  Charles C. Mosher ,  Ronnie B. Darnell

IPC: G01V1/28 ,  G01V1/30

Abstract: Method and system for ongoing monitoring for underground structure at or near a production wellpad is provided. The system includes a sparse acquisition grid and utilizes information obtained from Rayleigh waves to monitor subsurface structures.

公开(公告)号：US09244183B2

公开(公告)日：2016-01-26

申请号：US13772570

申请日：2013-02-21

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Samik Sil ,  Ali Tura ,  Roman Kazinnik ,  Xinfa Zhu

IPC: G01V1/30

CPC classification number: G01V1/303 ,  G01V1/30 ,  G01V2210/52 ,  G01V2210/626 ,  G01V2210/646

Abstract: Refracted energy travel time can help to derive anisotropic parameters in a target layer. These anisotropic parameters allow us to both explore for new reservoirs and to understand stress and fracturing in existing reservoirs. This information can be used to i) detect oil reservoirs, ii) spot naturally fractured, hence high production zones, iii) detect dominant natural stress directions, iv) better place horizontal wells to optimize production, v) monitoring man made fractures or induced directional stress changes. The method is demonstrated using synthetic and real data.

Abstract translation: 折射能量行进时间可有助于在目标层中导出各向异性参数。 这些各向异性参数使我们能够探索新的水库，并了解现有水库的应力和压裂。 这些信息可用于i）检测油藏，ii）点自然裂缝，因此高生产区，iii）检测主要的自然应力方向，iv）更好地放置水平井以优化生产，v）监测人造骨折或诱导定向 压力变化。 该方法使用合成和实际数据进行演示。