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    Method of optimizing production of gas from subterranean formations
    2.
    发明申请
    Method of optimizing production of gas from subterranean formations 有权
    优化地下地层瓦斯生产方法

    公开(公告)号：US20050121193A1

    公开(公告)日：2005-06-09

    申请号：US10727454

    申请日：2003-12-04

    Applicant: Larry Buchanan ,  S. Weida ,  Don Russell

    Inventor： Larry Buchanan ,  S. Weida ,  Don Russell

    IPC: E21B43/00 ,  E21B43/30 ,  E21B33/13

    CPC classification number: E21B43/305 ,  E21B43/006

    Abstract: The present invention relates generally to subterranean well construction, and more particularly, to improved methods for producing gas from subterranean formations that include coal seams. The method according to the present invention includes the steps of drilling at least one substantially vertical well bore intersecting the coal seam, drilling at least one substantially horizontal well bore disposed substantially within the coal seam and exiting from the at least one substantially vertical well bore, and fracturing the coal seam along the at least one substantially horizontal well bore using a hydrajetting tool to produce a plurality of fractures. The plurality of fractures is spaced to maximize interference between the fractures and enhances the production of gas from the coal seam of the subterranean formation. A plurality of substantially horizontal well bores can also be drilled. The plurality of substantially horizontal well bores can be spaced to maximize interference between the substantially horizontal well bores.

    Abstract translation: 本发明一般涉及地下井结构，更具体地说，涉及用于从包括煤层的地下地层产生气体的改进方法。 根据本发明的方法包括以下步骤：钻取与煤层相交的至少一个基本上垂直的井，钻取基本上位于煤层内并至少从一个基本垂直的井眼排出的至少一个基本上水平的井眼， 以及使用水力喷射工具沿着所述至少一个基本上水平的井眼压裂所述煤层，以产生多个裂缝。 多个裂缝被间隔开以最大化裂缝之间的干扰，并且增强了从地层的煤层产生气体。 还可以钻多个基本上水平的井眼。 多个基本上水平的井眼孔可以间隔开，以最大限度地在基本上水平的井眼之间的干涉。

    Throttleable Exhaust Venturi
    3.
    发明申请
    Throttleable Exhaust Venturi 有权
    可润喉排气文丘里

    公开(公告)号：US20120272651A1

    公开(公告)日：2012-11-01

    申请号：US13458684

    申请日：2012-04-27

    Applicant: Gregory S. Mungas ,  Larry Buchanan

    Inventor： Gregory S. Mungas ,  Larry Buchanan

    IPC: G05D11/00 ,  F01B31/00

    CPC classification number: F01N13/082 ,  F01N13/20 ,  F01N2260/06 ,  F01N2270/08 ,  Y10T137/0329 ,  Y10T137/2599

    Abstract: A throttleable exhaust venturi is described herein that generates strong suction pressures at an exhaust outlet by accelerating an incoming ambient fluid stream with the aid of a venturi to high gas velocities and injecting a combustion exhaust stream into the ambient fluid stream at an effective venturi throat. A mixing element downstream of the venturi throat ensures that the mixed fluid stream recovers from a negative static pressure up to local atmospheric pressure. A physical and the effective throat of the venturi are designed to promote mixing and stabilize the ambient fluid flow to ensure that high velocity is achieved and the effective venturi is operable over a variety of combustion exhaust stream mass flow rates.

    Abstract translation: 本文描述了一种可节流的排气文丘里管，其通过在文氏管的帮助下将进入的环境流体流加速到高气体速度并在有效的文丘里喉管处将燃烧废气流注入环境流体流中，在排气出口处产生强的吸入压力。 文丘里管喉下游的混合元件确保混合流体流从负静压恢复到局部大气压力。 文丘里管的物理和有效喉部被设计成促进混合和稳定环境流体流动，以确保实现高速度，并且有效文丘里管能够在多种燃烧废气流质量流量下操作。

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