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1. 发明授权

US4039030A Oil and gas well stimulation 失效
标题翻译：油气井刺激
公开(公告)号：US4039030A
公开(公告)日：1977-08-02
申请号：US700094
申请日：1976-06-28
申请人： Charles S. Godfrey , E. T. Moore, Jr. , Douglas M. Mumma
发明人： Charles S. Godfrey , E. T. Moore, Jr. , Douglas M. Mumma
IPC分类号： E21B43/263 , E21B43/26
CPC分类号： E21B43/263
摘要： A method and means for stimulating oil and gas wells to increase production comprises filling a well above the pay zone level with a fracturing fluid, then suspending a cylinder of high explosive centrally within the wellbore adjacent to the pay zone. Thereafter a propellant is suspended within tens of feet above the high explosive and the well above the propellant is enclosed. The application of high explosive is chosen to cause multiple radiating fractures but will not crush the rock in the well. Also, the rise time of the shock wave created by the explosive should be less than the time required for sound to traverse one-half of the periphery of the well opening in the rock at the pay zone. The propellant is detonated first, followed by the detonation of the high explosive. The purpose of using the propellant is to maintain pressure caused by the high explosive over a longer period, thereby extending the fractures caused by the high explosive.
摘要翻译：用于刺激油气井以增加生产的方法和手段包括用压裂液填充高于工矿区水平的井，然后在靠近工矿区的井筒内部将高爆炸气瓶中心地悬挂在井眼内。此后，推进剂悬挂在高爆炸物上方几十英尺内，并且推进剂上方的井被封闭。选择高爆炸物的应用可引起多次辐射裂缝，但不会破坏井中的岩石。此外，由爆炸物产生的冲击波的上升时间应小于声音穿过工作区岩石开孔周边的一半所需的时间。推进剂首先引爆，然后引爆高爆炸物。使用推进剂的目的是在较长时间内保持高爆炸物引起的压力，从而延长高爆炸造成的裂缝。

2. 发明授权

US4091870A Method for generating horizontal fractures in a wellbore 失效
$Method for generating horizontal fractures in a wellbore$
标题翻译：在井眼中产生水平裂缝的方法
公开(公告)号：US4091870A
公开(公告)日：1978-05-30
申请号：US735676
申请日：1976-10-26
申请人： Charles S. Godfrey , E. T. Moore, Jr.
发明人： Charles S. Godfrey , E. T. Moore, Jr.
IPC分类号： E21B43/263 , F42D1/00 , E21B43/26
CPC分类号： F42D1/00 , E21B43/263 , Y10S102/701
摘要： A method for generating a horizontal fracture through a wellbore by causing two explosively induced shear waves to intersect. This is achieved by placing, within a coupling fluid within a wellbore, a length of high explosives whose center is adjacent the location where a fracture is desired. Both ends of the high explosive are ignited simultaneously.
摘要翻译：通过使两个爆炸诱导的剪切波相交而产生通过井筒的水平断裂的方法。这是通过在井筒内的耦合流体内放置一定长度的高爆炸物来实现的，该高度爆炸物的中心邻近需要断裂的位置。高爆炸物的两端同时点燃。

3. 发明授权

US3963275A Method of breaking free-standing rock boulders 失效
标题翻译：破碎独立岩石巨石的方法
公开(公告)号：US3963275A
公开(公告)日：1976-06-15
申请号：US531730
申请日：1974-12-11
申请人： Charles S. Godfrey , John D. Watson
发明人： Charles S. Godfrey , John D. Watson
IPC分类号： E21C37/00
CPC分类号： E21C37/005
摘要： Free-standing boulders or rocks are fractured and broken down into many smaller pieces by impacting the boulder with a high velocity projectile. The impact energy is delivered to the rock by a blunt nosed projectile in a time which is less than the transit time of a sound signal across the average diameter of the rock.
摘要翻译：独立的巨石或岩石通过用高速射弹撞击巨石而破裂并分解成许多较小的碎片。在一个时间内，钝角鼻弹体将冲击能量传递给岩石，该时间小于声音信号穿过平均岩石直径的传播时间。

4. 发明授权

US4049056A Oil and gas well stimulation 失效
标题翻译：油和气体刺激
公开(公告)号：US4049056A
公开(公告)日：1977-09-20
申请号：US700470
申请日：1976-06-28
申请人： Charles S. Godfrey
发明人： Charles S. Godfrey
IPC分类号： E21B43/263 , E21B43/26
CPC分类号： E21B43/263
摘要： A method for stimulating oil and gas wells to increase production including filling the lower portion of the well above the pay zone level having exposed rock with a fracturing fluid, and sealing the well above the lower portion. A shock wave is then applied to the fracturing fluid, which, when applied thereby to the rock at the pay zone creates a stress wave in the rock having a rise time faster than the time required for sound to traverse one half the periphery of the rock at the pay zone, and having an amplitude which will fracture but not crush the rock.

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