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1. 发明申请

WO1994029570A1 METHOD AND APPARATUS FOR OIL OR GAS WELL CLEANING 审中-公开
标题翻译：用于油或气井清洁的方法和装置
公开(公告)号：WO1994029570A1
公开(公告)日：1994-12-22
申请号：PCT/US1994006696
申请日：1994-06-08
申请人： PALL CORPORATION
发明人： PALL CORPORATION , HASHEMI, Reza , MALBREL, Christophe, H.
IPC分类号： E21B37/08
CPC分类号： E21B37/00 , E21B33/068
摘要： An oil or gas well cleaning method includes inserting tubing, suchas a coiled tubing (60), into a well bore (10), for example, into a production pipe (30) in a well bore (10). A cleaning fluid containing a flocculant is passed into the well and the flocculant in the cleaning fluid is mixed with solid particles (11) in the well bore (10) to flocculate the particles. The cleaning fluid and the flocculated particles are then removed from the well. In one embodiment, the cleaning fluid containing the flocculant is discharged from the lower end of the tubing (60) into the well, and the cleaning fluid with the flocculated particules is removed from the well via the production pipe (30). Alternatively, the cleaning fluid containing the flocculant may be introduced into the well through the production pipe (30), and the cleaning fluid with the flocculated particles may be removed via the tubing (60). The flocculant may also serve as a friction reducer to reduce the friction between the cleaning fluid, the solids, the production pipe (30), and the tubing (60).
摘要翻译：油或气井清洁方法包括将诸如连续油管（60）的管道插入井眼（10）中，例如插入井眼（10）中的生产管道（30）中。将含有絮凝剂的清洗流体进入孔中，将清洗流体中的絮凝剂与井眼（10）中的固体颗粒（11）混合，使颗粒絮凝。然后将清洗液和絮凝颗粒从孔中取出。在一个实施方案中，将含有絮凝剂的清洗流体从管道（60）的下端排出到井中，并且通过生产管道（30）将具有絮凝颗粒的清洁流体从井中移出。或者，可以通过生产管道（30）将含有絮凝剂的清洗流体引入井中，并且可以经由管道（60）除去具有絮凝颗粒的清洁流体。絮凝剂还可以用作减摩剂以减少清洁流体，固体，生产管道（30）和管道（60）之间的摩擦。

2. 发明申请

WO1996018022A1 FILTER FOR SUBTERRANEAN WELLS 审中-公开
标题翻译：过滤器
公开(公告)号：WO1996018022A1
公开(公告)日：1996-06-13
申请号：PCT/US1995015988
申请日：1995-12-07
申请人： PALL CORPORATION
发明人： PALL CORPORATION , KOEHLER, Paul, C. , GEIBEL, Stephen, A. , WHITLOCK, Michael, B. , HASHEMI, Reza , MALBREL, Christophe, A.
IPC分类号： E21B43/08
CPC分类号： E21B43/084 , B01D29/111 , B01D29/21 , B01D29/216 , B01D29/54 , B01D29/58 , B01D35/26 , B01D39/2027 , B01D2201/0407 , B01D2201/188 , E21B29/10 , E21B43/082
摘要： A damage-resistant filter for use in subterranean wells has at least one layer of a filter medium (13), such as a sintered supported porous membrane, coaxially disposed about a perforated support member (11). The filter may also include a drainage layer (15) disposed between the inner support member and the filter medium, and a protective covering, such as a perforated cage (17), surrounding the filter medium (13). The filter is particularly suitable for removal of sand and other particulates from fluids produced in a well.
摘要翻译：在地下井中使用的抗破坏的过滤器具有至少一层过滤介质（13），例如烧结的支撑多孔膜，同轴地设置在穿孔的支撑构件（11）周围。过滤器还可以包括设置在内部支撑构件和过滤介质之间的排水层（15），以及围绕过滤介质（13）的保护覆盖物，例如穿孔笼（17）。过滤器特别适用于从井中产生的流体中除去沙子和其他颗粒物。

3. 发明申请

WO1994028284A1 SAND SCREEN STRUCTURE 审中-公开
标题翻译： SAND屏幕结构
公开(公告)号：WO1994028284A1
公开(公告)日：1994-12-08
申请号：PCT/US1994005720
申请日：1994-05-17
申请人： PALL CORPORATION
发明人： PALL CORPORATION , KOEHLER, Paul, C. , GEIBEL, Stephen, A. , WHITLOCK, Michael, B. , HASHEMI, Reza
IPC分类号： E21B43/08
CPC分类号： E21B43/084 , B01D29/111 , B01D29/21 , B01D29/216 , B01D29/54 , B01D29/58 , B01D35/26 , B01D39/2027 , B01D2201/0407 , B01D2201/188 , E21B29/10 , E21B43/082
摘要： A damage resistant sand screen assembly has at least one layer of a sintered porous medium (10, 11, 12), preferably a sintered metal membrane, coaxially disposed about and secured to a perforated core (1). The assembly may also include a woven wire mesh drainage layer (9) disposed between the perforated production tube (1) and the sintered porous medium (10, 11, 12), and a protective covering (13), preferably a woven wire mesh. The assembly is suitable for use in gravel pack (4), or it may be installed outside of agravel pack (4), such as on the end of a production pipe (17) or on a down-hole pump (18).
摘要翻译：耐损伤砂筛组件具有至少一层烧结多孔介质（10,11,12），优选是烧结金属膜，其同轴地设置在多孔芯（1）周围并固定在其上。组件还可以包括布置在穿孔生产管（1）和烧结多孔介质（10,11,12）之间的编织丝网排出层（9）和保护性覆盖物（13），优选编织丝网。该组件适用于砾石充填（4），或者它可以安装在犁包装（4）的外面，例如在生产管道（17）的末端或在井下泵（18）上。

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