Fischer-tropsch processes and catalysts using fluorided clay supports
    572.
    发明申请
    Fischer-tropsch processes and catalysts using fluorided clay supports 审中-公开
    使用氟化粘土载体的费 - 托工艺和催化剂

    公开(公告)号:US20040110852A1

    公开(公告)日:2004-06-10

    申请号:US10309454

    申请日:2002-12-04

    CPC classification number: C10G2/33

    Abstract: A process is disclosed for producing hydrocarbons. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. In accordance with this invention, the catalyst used in the process includes at least a Fischer-Tropsch metal selected from Groups 8, 9, and 10 of the periodic table and combinations thereof. The catalyst also includes a fluorided clay support material. The fluorided clay is preferably a fluorided bentonite.

    Abstract translation: 公开了一种用于生产烃的方法。 该方法包括将包含氢气和一氧化碳的进料流与催化剂接触,所述反应区域保持在有效产生包含烃的流出物流的转化促进条件下。 根据本发明,用于该方法的催化剂包括至少一种选自元素周期表第8,9和10族的费 - 托金属及其组合。 催化剂还包括氟化粘土载体材料。 氟化粘土优选为氟化膨润土。

    Alkylation process
    573.
    发明申请
    Alkylation process 有权
    烷基化方法

    公开(公告)号:US20030130553A1

    公开(公告)日:2003-07-10

    申请号:US10371766

    申请日:2003-02-21

    CPC classification number: C07C2/62 C07C2527/1206

    Abstract: A system and/or process for removing water from an alkylation catalyst mixture of an alkylation process is disclosed. The process includes passing an alkylation reaction zone effluent to a settler for separation into a hydrocarbon phase and a catalyst mixture phase; passing at least a portion of the hydrocarbon phase, as a settler effluent stream containing alkylate, water, HF and volatility reducing additive, to a first separator; removing and condensing a first overhead stream from the first separator thereby forming an HF/water stream; passing the HF/water stream to a second separator for separation into a modified HF stream containing HF and volatility reducing additive and into an HF/water azeotrope stream containing HF and water; using the modified HF stream as a part of the alkylation catalyst mixture and; removing water from the system by removing the HF/water azeotrope stream from the second separator.

    Abstract translation: 公开了一种用于从烷基化方法的烷基化催化剂混合物中除去水的体系和/或方法。 该方法包括将烷基化反应区流出物送入沉淀器以分离成烃相和催化剂混合物相; 将至少一部分烃相作为含有烷基化物,水,HF和挥发性降低添加剂的沉淀器流出物流送至第一分离器; 从第一分离器去除和冷凝第一塔顶流,从而形成HF /水流; 将HF /水流送至第二分离器,分离成含有HF和挥发性降低添加剂的改性HF流,并进入含有HF和水的HF /水共沸物流; 使用改性的HF流作为烷基化催化剂混合物的一部分; 通过从第二分离器除去HF /水共沸物流,从系统中除去水分。

    Annulus cement breaker
    574.
    发明授权

    公开(公告)号:US12281530B2

    公开(公告)日:2025-04-22

    申请号:US17317365

    申请日:2021-05-11

    Abstract: Implementations described and claimed herein provide systems and methods for breaking cement within an annulus of a wellbore. In one implementation, an annulus cement breaking system includes a cement compression tool operable to be disposed within an inner bore of a casing having a longitudinal length. The casing is disposed within a wellbore formed in a subterranean formation having a cement layer disposed within an annulus formed between the casing and the subterranean formation. One or more actuation elements are coupled with the cement compression tool, and the one or more actuation elements are operable to engage the inner bore. The one or more actuation elements are transitionable between an unactuated state and an actuated stated. The actuated state operable to engage the inner bore of the casing, thereby radially expanding the casing and compressing the cement layer.

    AUTOMATED INITIAL SHUT-IN PRESSURE ESTIMATION

    公开(公告)号:US20250052150A1

    公开(公告)日:2025-02-13

    申请号:US18774045

    申请日:2024-07-16

    Inventor: Herbert W. SWAN

    Abstract: Water hammer is oscillatory pressure behavior in a wellbore resulting from the inertial effect of flowing fluid being subjected to an abrupt change in velocity. It is commonly observed at the end of large-scale hydraulic fracturing treatments after fluid injection is rapidly terminated. Factors affecting treatment-related water hammer behavior are disclosed and field studies are introduced correlating water hammer characteristics to fracture intensity and well productivity.

    Plug and abandon operation in a hydrocarbon well by cementing the annulus through apertures in the casing

    公开(公告)号:US12163400B2

    公开(公告)日:2024-12-10

    申请号:US17655885

    申请日:2022-03-22

    Inventor: James Rutherford

    Abstract: A technique for abandonment of a hydrocarbon well injects cement into the annulus through apertures (5) in the casing (3). The apertures (5) are pre-formed in the casing before the casing is installed at the start of life of the well, and are also fitted with a closure sleeve (6). The apertures (5) remain closed for the lifetime of the well. The closure sleeve (6) is designed to remain operational over the 20-30 year lifetime of the well. When the time comes to plug and abandon the well, a tool (9) is passed down the well on drill pipe (10) to open the apertures (5) by moving the sleeve (6). Wash fluid and then cement are injected from the tool (9) through the apertures (5) to wash and then plug the annulus behind the casing (3).

    Behind casing wash and cement
    578.
    发明授权

    公开(公告)号:US12139997B2

    公开(公告)日:2024-11-12

    申请号:US18316030

    申请日:2023-05-11

    Abstract: The invention relates to a method of conducting a perf wash cement (“P/W/C”) abandonment job in an offshore oil or gas well annulus, in particular the washing or cementing operation using a rotating head with nozzles dispensing wash fluid or cement at pressure. A new design of bottom hole assembly is proposed in which the cementing tool has a relatively large diameter in order to optimize pressure whilst the wash tool has a relatively small diameter. The wash process, for a number of reasons, appears to be less sensitive to tool diameter and making the wash tool smaller reduces the overall risk of stuck pipe.

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