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1. 发明授权

US5327971A Pressure recorder carrier and method of use 失效
标题翻译：压力记录仪载体及使用方法
公开(公告)号：US5327971A
公开(公告)日：1994-07-12
申请号：US962767
申请日：1992-10-19
申请人： Charles F. Garbutt , David E. Ellwood
发明人： Charles F. Garbutt , David E. Ellwood
IPC分类号： E21B47/01 , E21B47/00
CPC分类号： E21B47/011
摘要： A means for taking pressure readings in a bottom-hole zone of a well without interfering with an operation in which solid material is moving through a tubing string. A pressure recorder is enclosed in a carrier attached to the outer surface of a tubing sub near the end of the tubing string. The carrier walls include ports which expose the pressure recorder to the fluid in the bottom-hole zone. This arrangement allows operations such as sand fracture stimulations and rod pumping to be unimpeded by a pressure recorder.
摘要翻译：用于在井的井底区域进行压力读数的手段，而不会干扰固体材料通过油管柱移动的操作。压力记录器被封装在附接到管柱端部附近的管子的外表面的载体中。载体壁包括将压力记录器暴露于底孔区域中的流体的端口。这种布置允许诸如砂破裂刺激和杆泵送的操作被压力记录器阻挡。

2. 发明授权

US5879563A Use of multiple treatment agents to reduce hardness of an oilfield produced water 失效
标题翻译：使用多种处理剂降低油田生产水的硬度
公开(公告)号：US5879563A
公开(公告)日：1999-03-09
申请号：US866429
申请日：1997-05-30
申请人： Charles F. Garbutt
发明人： Charles F. Garbutt
IPC分类号： C02F5/02 , C02F1/58
CPC分类号： C02F5/02
摘要： A process is provided for treating a water to reduce its hardness by performing a series of sequential stages including a primary chemical reaction stage, a secondary chemical reaction stage and a scale removal stage. The primary chemical reaction stage includes the steps of adding a first hydroxide ion donor in the form of lime to an initial water having an initial hardness and reacting the first hydroxide ion donor to form a first portion of a scale and an intermediate water having an intermediate hardness substantially less than the initial hardness. The secondary chemical reaction stage includes the steps of adding a second hydroxide ion donor in the form of caustic to the intermediate water and reacting the second hydroxide ion donor to form a second portion of the scale and a product water having a product hardness substantially less than the intermediate hardness. The reduction contribution of the primary chemical reaction stage to total hardness reduction is substantially greater than the reduction contribution of the secondary chemical reaction stage. The scale removal stage includes the steps of separating the scale from the product water to form a sludge and disposing the sludge.
摘要翻译：提供一种处理水以通过执行包括一级化学反应级，二级化学反应级和除垢级的一系列连续级来降低其硬度的方法。主要化学反应阶段包括以下步骤：将石灰形式的第一氢氧化物离子供体加入到具有初始硬度的初始水中，并使第一氢氧化物离子供体反应形成第一部分氧化皮和具有中间体的中间水硬度大大低于初始硬度。二次化学反应阶段包括以下步骤：向中间水中加入苛性碱形式的第二氢氧离子供体，并使第二氢氧离子供体反应形成第二部分的水垢，产物水的产品硬度基本上小于中间硬度。主要化学反应阶段对总硬度降低的降低贡献显着大于次级化学反应阶段的还原贡献。除垢阶段包括将标尺与产品水分离以形成污泥并处理污泥的步骤。

3. 发明授权

US5879562A Water treatment process for reducing the hardness of an oilfield produced water 失效
标题翻译：用于降低油田生产水硬度的水处理工艺
公开(公告)号：US5879562A
公开(公告)日：1999-03-09
申请号：US839586
申请日：1997-04-15
申请人： Charles F. Garbutt
发明人： Charles F. Garbutt
IPC分类号： C02F5/02 , C02F1/52
CPC分类号： C02F5/02
摘要： A multi-stage process is provided for treating a water to reduce its hardness. The feed water is initially heated to a thermal reaction temperature in a heating stage. The heated water is then maintained at or near the thermal reaction temperature for a sufficient residence time to thermally react the water, producing a first portion of a scale from the scale-forming ions in the water while discharging dissolved gases from the water. After the thermal reaction stage, one or more chemical additives in the form of a hydroxide ion donor and optionally a bicarbonate ion donor are added to the heated water in a chemical reaction stage. The chemical additive is chemically reacted with the water in the chemical reaction stage, producing a second portion of the scale from the scale-forming ions in the water. A treated water having a reduced hardness is recovered from a sludge settling stage and the scale produced by the thermal and chemical reaction stages is discharged from the water and accumulated in a sludge accumulation stage for withdrawal from the process.
摘要翻译：提供了多级方法来处理水以降低其硬度。进料水最初在加热阶段被加热至热反应温度。然后将加热的水保持在或接近热反应温度足够的停留时间以使水反应，从而从水中排出溶解的气体，从水中的水垢形成离子产生鳞片的第一部分。在热反应阶段之后，在化学反应阶段将一种或多种以氢氧根离子给体和任选的碳酸氢根离子供体形式的化学添加剂加入到加热的水中。化学添加剂在化学反应阶段与水发生化学反应，从水中的水垢形成离子产生第二部分的氧化皮。从污泥沉淀阶段回收具有降低硬度的处理水，并且通过热和化学反应阶段产生的水垢从水中排出并积聚在污泥积聚阶段以从该方法中取出。

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