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1. 发明授权

US5065820A Control of lost circulation in wells 失效
标题翻译：控制井中的流失
公开(公告)号：US5065820A
公开(公告)日：1991-11-19
申请号：US594252
申请日：1990-10-09
申请人： James B. Bloys , Bonsall S. Wilton
发明人： James B. Bloys , Bonsall S. Wilton
IPC分类号： C09K8/502 , C09K8/508 , E21B21/00 , F02B3/06
CPC分类号： E21B21/003 , C09K8/502 , C09K8/508 , F02B3/06
摘要： A method and a treating mixture for controlling lost circulation of fluid from a wellbore to a formation wherein the treating mixture is flowed down the wellbore to block flow into the formation. The mixture is comprised of a non-aqueous carrier liquid (e.g. diesel) and particles of compressed sponge) which expands upon contact with an aqueous liquid in the formation. The mixture may also contain a second lost circulation material (e.g. unhydrolyzed polyacrylamide) which hydrates to bridge and plug any voids or spaces left between the expanded sponge particles. When used to control lost of an aqueous liquid, e.g. water-based mud, a non-aqueous liquid (e.g. diesel) is used ahead and behind the treating mixture to separate it from aqueous liquids. When used to control loss of an oil-based liquid, water is pumped behind the treating mixture to provide the aqueous liquid necessary for expanding the sponge particles once they are in place.
摘要翻译：一种用于控制流体从井眼到地层的流失的方法和处理混合物，其中处理混合物沿着井筒流下来阻止流入地层。混合物由非水载体液体（例如柴油）和压缩海绵颗粒组成，其与地层中的含水液体接触时膨胀。混合物还可以含有第二个失水循环材料（例如未水解的聚丙烯酰胺），其水合以桥接和堵塞在膨胀的海绵颗粒之间留下的任何空隙或空间。当用于控制水性液体的损失时，例如，使用水性泥浆，非水性液体（例如柴油）在处理混合物的前面和后面被使用以将其与含水液体分离。当用于控制油基液体的损失时，将水泵送到处理混合物的后面，以提供一旦它们就位就膨胀海绵颗粒所需的水性液体。

2. 发明授权

US5117909A Well conduit sealant and placement method 失效
标题翻译：导管密封胶和放置方法
公开(公告)号：US5117909A
公开(公告)日：1992-06-02
申请号：US603571
申请日：1990-10-25
申请人： Bonsall S. Wilton , J. Benjamin Bloys , Roger D. Bradshaw , Kenneth R. Riggs
发明人： Bonsall S. Wilton , J. Benjamin Bloys , Roger D. Bradshaw , Kenneth R. Riggs
IPC分类号： C09K8/50 , C09K8/502 , C09K8/514 , E21B29/00 , E21B43/12 , F02B3/06
CPC分类号： C09K8/514 , C09K8/50 , C09K8/502 , E21B29/00 , E21B43/121 , E21B43/122 , F02B3/06
摘要： Gas leakage from oil wells through casing thread connections and other small leakage spaces is reduced or eliminated by injecting into the lift gas flowstream a sealant composition comprising a carrier liquid, such as diesel fuel or water, an ethoxylated phenol surfactant and particulate silica and/or Gilsonite. A liquid sealant composition is injected into oil wells on artificial gas lift comprising arctic diesel fuel, a surfactant and solubilized Gilsonite in a weight ratio of about 10:1 diesel fuel to Gilsonite and diesel fuel to surfactant, respectively. Effective reduction in leakage flow rates is obtained over a relatively short time period (one to ten hours).
摘要翻译：通过套管螺纹连接和其他小的泄漏空间的油井的气体泄漏通过将包括载体液体如柴油或水，乙氧基化酚表面活性剂和颗粒二氧化硅的密封剂组合物注入提升气体流动流中来减少或消除，和/或 Gilsonite。将液体密封剂组合物注入人造气提升器的油井中，其中包括北极柴油，表面活性剂和溶解的Gilsonite，其重量比分别为10:1柴油和Gilsonite，柴油和柴油分别加入到表面活性剂中。在相当短的时间内（1至10小时）可以有效降低泄漏流量。

3. 发明授权

US5113943A Spacer fluids 失效
标题翻译：间隔液
公开(公告)号：US5113943A
公开(公告)日：1992-05-19
申请号：US680473
申请日：1991-04-02
申请人： William N. Wilson , Roger D. Bradshaw , Bonsall S. Wilton , Robert B. Carpenter
发明人： William N. Wilson , Roger D. Bradshaw , Bonsall S. Wilton , Robert B. Carpenter
IPC分类号： C04B24/28 , C04B28/02 , C09K8/42 , C09K8/46 , C09K8/60
CPC分类号： C09K8/601 , C04B24/28 , C04B28/02 , C09K8/424 , C09K8/46 , Y10S507/928
摘要： Spacer fluids providing an effective buffer between drilling fluids and cement slurries during well completion. The spacer fluids comprise a sulfonated styrene copolymer dispersant and one or more additional components such as surfactants, viscosifiers and weighting materials to form a rheologically compatible fluid between the drilling fluid and the cement slurry.
摘要翻译：间隔流体在竣工期间为钻井液和水泥浆提供有效的缓冲。间隔液包含磺化苯乙烯共聚物分散剂和一种或多种另外的组分，例如表面活性剂，增粘剂和加重材料，以在钻井液和水泥浆之间形成流变相容的流体。

4. 发明授权

US5529123A Method for controlling fluid loss from wells into high conductivity earth formations 失效
标题翻译：用于控制井的流体损失到高导电性地层的方法
公开(公告)号：US5529123A
公开(公告)日：1996-06-25
申请号：US419450
申请日：1995-04-10
申请人： Robert B. Carpenter , Bonsall S. Wilton
发明人： Robert B. Carpenter , Bonsall S. Wilton
IPC分类号： C09K8/60 , E21B33/138 , E21B43/02 , E21B21/08 , E21B21/14
CPC分类号： E21B43/025 , C09K8/60 , E21B33/138
摘要： A method of reducing fluid loss into a highly conductive formation interval during drilling and completion of a well through such an interval wherein a foamed cement slurry, including an acid or oil soluble component, is injected into the well and forced into the conductive portions of the formation zone, which may comprise a fractured or rubblized formation portion. The cement is allowed to harden or set at a porosity of at least 15%, followed by resuming drilling and, in completing the well, dissolving the soluble component to increase the permeability of or disintegrate the cement to permit production of formation fluids into the well.
摘要翻译：在通过这样的间隔的钻井和完井期间将流体损失减少为高导电性地层间隔的方法，其中包括酸或油溶性组分的发泡水泥浆料注入井中并被迫进入井的导电部分形成区域，其可以包括断裂的或破碎的形成部分。允许水泥硬化或设定为至少15％的孔隙度，然后恢复钻井，并且在完井时，溶解可溶组分以增加水泥的渗透性或分解水泥以允许地层流体进入井。

5. 发明授权

US5030366A Spacer fluids 失效
标题翻译：间隔液
公开(公告)号：US5030366A
公开(公告)日：1991-07-09
申请号：US441853
申请日：1989-11-27
申请人： William N. Wilson , Roger D. Bradshaw , Bonsall S. Wilton , Robert B. Carpenter
发明人： William N. Wilson , Roger D. Bradshaw , Bonsall S. Wilton , Robert B. Carpenter
IPC分类号： C04B24/28 , C04B28/02 , C09K8/40 , C09K8/42 , C09K8/46 , C09K8/60
CPC分类号： C09K8/40 , C04B24/28 , C04B28/02 , C09K8/424 , C09K8/46 , C09K8/601 , Y10S507/928
摘要： Spacer fluids providing an effective buffer between drilling fluids and cement slurries during well completion. The spacer fluids comprise a sulfonated styrene copolymer dispersant and one or more additional components such as surfactants, viscosifiers and weighting materials to form a rheologically compatible fluid between the drilling fluid and the cement slurry.

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