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公开(公告)号：EP4048853A1
公开(公告)日：2022-08-31
申请号：EP20842108.1
申请日：2020-12-17
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2.发明公开
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公开(公告)号：EP2864440B1
公开(公告)日：2018-07-18
申请号：EP13734359.6
申请日：2013-06-20
申请人： Lamberti SpA
发明人： PICCO, Cristina Maria , CECCHETTO, Massimo , PIROVANO, Pierangelo , MERLI, Luigi , FLORIDI, Giovanni , LI BASSI, Giuseppe
CPC分类号： C09K8/36 , C09K8/42 , C09K8/502 , C09K8/64 , C09K8/82 , C09K2208/02 , E21B7/00 , E21B31/03 , E21B43/16
摘要： Water in oil emulsion drilling and well treatment fluids comprising an ester of trimer fatty acids and polyoxyethyiene glycol, the polyoxyethyiene glycol having average molecular weight from about (150) to about (600) and the trimer acids having at least about 20% of carboxyl acid groups esterified, as rheology modifier.
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公开(公告)号：EP3089805A4
公开(公告)日：2018-01-24
申请号：EP14877348
申请日：2014-12-30
发明人： MACDONALD JOHN T
IPC分类号： B01D41/04 , C09K8/528 , C09K8/74 , C11D1/72 , C11D3/04 , C11D3/20 , C11D3/32 , C11D11/00 , C23F11/04 , C23G1/02 , C23G1/06 , C23G1/08 , E21B31/03
CPC分类号： B01D41/04 , C09K8/528 , C09K8/68 , C09K8/74 , C11D1/72 , C11D3/042 , C11D3/2006 , C11D3/2072 , C11D3/323 , C11D11/0041 , C23F11/04 , C23G1/06 , C23G1/08
摘要： A composition including HCl, urea, complex substituted keto-aminehydrochloride, an alcohol, an ethoxylate, and a ketone is provided in a method for solubilizing calcium carbonate in an aqueous suspension or dispersion of calcium carbonate. The application provides a method for pickling treatments, electronic submersible pump treatments (ESPs), hydraulic fracturing, perforation cleaning and debris removal, toe preparation treatments that replace the use of acetic acid blends, cement squeeze treatments, injection well treatments, disposal well treatments, pH adjustment of recycled frac water and/or flow-back fluids, pH adjustment fluid to assist with the hydration of gelled based systems, breaking gelled fracturing systems to replace the use of dangerous oxidizing agents, using a fluid to unstick a drilling rig, acid fracture, spearhead acid squeeze soaking, and filter cake removal.
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公开(公告)号：EP1356009A4
公开(公告)日：2006-09-27
申请号：EP02717294
申请日：2002-01-07
CPC分类号： E21B31/03 , C09K8/02 , C09K8/36 , C09K2208/02 , Y10S507/94
摘要： A new composition for a spotting fluid and a method of using such spotting fluid for freeing differential stuck pipe in a subterranean well drilling operation is disclosed. The composition comprises an invert water-in-oil emulsion comprising iso-butyl oleate as its external phase and glycerin as the internal phase. In an alternative embodiment, calcium chloride and water may be substituted for glycerin.
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6.发明授权
公开(公告)号：EP1169406B1
公开(公告)日：2004-06-16
申请号：EP99967674.5
申请日：1999-12-27
CPC分类号： C09K8/08 , C09K8/02 , C09K8/206 , C09K8/5758 , C09K2208/02 , E21B21/00 , E21B31/03 , Y10S507/91 , Y10S507/94
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7.发明公开
公开(公告)号：EP1169406A1
公开(公告)日：2002-01-09
申请号：EP99967674.5
申请日：1999-12-27
CPC分类号： C09K8/08 , C09K8/02 , C09K8/206 , C09K8/5758 , C09K2208/02 , E21B21/00 , E21B31/03 , Y10S507/91 , Y10S507/94
摘要： Aphron-containing spotting fluids and their use in releasing pipe or tools stuck in the filter cake on the sides of a borehole are disclosed. The spotting fluids comprise a liquid, either aqueous, oleaginous, or mixtures thereof, a viscosifier which imparts a low shear rate viscosity to the fluids of at least 10,000 centipoise, an aphron-generating surfactant, and aphrons. The spotting fluids are used in a conventional method of releasing pipes or tools stuck in the filter cake on the sides of a borehole during conventional drilling or well servicing operations.
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公开(公告)号：EP1015729A1
公开(公告)日：2000-07-05
申请号：EP99934833.7
申请日：1999-07-22
摘要： An apparatus for facilitating the connection of tubulars using a top drive, which apparatus comprises a body (2; 102) connectable to said top drive, said body (2; 102) comprising at least one gripping element (5; 105) radially displaceable by hydraulic or pneumatic fluid to drivingly engage said tubular (30; 110) to permit a screw connection between said tubular and a further tubular to be tightened to the required torque.
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9.发明公开Zusammensetzungen zur Befreiung festgesetzter Bohrgestänge 失效Zusammensetzungen zur Befreiung festgesetzterBohrgestänge。
公开(公告)号：EP0324887A2
公开(公告)日：1989-07-26
申请号：EP88103865.7
申请日：1988-03-11
CPC分类号： C09K8/02 , Y10S507/94
摘要： Die Erfindung betrifft mineralölfreie Zusammensetzungen zur Befreiung festgesetzter Bohrgestänge, die folgende Komponenten enthalten:
(a) einen oder mehrere Fettsäurealkylester der allgemeinen Formel (I)
R¹- -OR² (I)
in der
R¹ für einen geradkettigen Alkylrest, Alkenylrest oder Alkadienylrest mit 7 bis 23 C-Atomen und
R² für einen geradkettigen oder verzweigten Alkylrest oder Hydroxyalkylenrest mit 1 bis 8 C-Atomen
stehen,
(b) ein oder mehrere Verdickungsmittel, z. B. organophile Bentonite
(c) einen oder mehrere Emulgatoren und
(d) gegebenenfalls weitere, in derartigen Zusammensetzungen übliche Wirkstoffe und/oder Hilfsstoffe.摘要翻译： 本发明涉及一种用于释放不含矿物油的卡住钻杆的组合物，其含有以下组分：...（a）一种或多种通式（I）的脂肪酸烷基酯...其中... R < 1>是直链烷基，具有7至23个碳原子的链烯基或链二烯基，R 2是具有1至8个碳原子的直链或支链烷基或羟基亚烷基，...（b ）一种或多种增稠剂，例如 有机膨润土...（c）一种或多种乳化剂，和（d）任选的这种组合物中常规的活性和辅助物质。
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10.发明公开Method of avoiding a drill string becoming stuck during drilling 失效Verfahren zum Verhindern der Blockierung einesBohrgestängeswährenddes Bohrens。
公开(公告)号：EP0209343A2
公开(公告)日：1987-01-21
申请号：EP86305395.5
申请日：1986-07-14
摘要： n a method of avoiding a drill string becoming stuck during drilling of a well over depth intervals where such equipment has become stuck in similar wells in a geological province, a multiplicity of well drilling variable quantities are measured substantially simultaneously at a known depth in each of a multiplicity of wells. Such multiplicity of wells includes those in which drilling equipment has stuck due to mechanical problems or differential pressure between the drill string and an earth formation penetrated by the well bore, or both, and a multiplicity of similar wells where the drill string did not stick. By multivariate statistical analysis of all variables in all wells of each class, together with maximum separation of said classes from each other, a plotting plane for a currently drilling well relative to said classes is established. The location of the relative position of all variables in such a drilling well with respect to the well classes is determined by summing the products of the coefficient of each variable for the complete group of wells times the current value of the variables in the drilling well. The variables are then modified within allowable values to change the plotted location of the drilling well toward the mean of the wells that did not cause the drill string to stick.
摘要翻译： 在这样一种方法中，避免在钻井过程中钻井过程中钻井过程中这种设备已经停留在地质省的类似井中的钻井柱，这样一来，钻井可变数量的大量基本上同时以每个 多个井。 井的这种多重性包括钻井设备由于机械问题或钻柱与由井眼或两者渗入的地层之间的压差以及钻柱未粘附的多个类似井而被卡住的孔。 通过对每个类别的所有井中所有变量的多元统计分析，以及所述类别彼此的最大分离，建立了相对于所述类别的当前钻井的绘图平面。 通过将整组井的每个变量的系数的乘积乘以钻井中的变量的当前值，将所有变量在相对于井类的钻井中的相对位置的位置求和。 然后将变量修改为允许值，以便将钻井的绘制位置改变为不会导致钻柱粘住的孔的平均值。
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