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11.发明授权Method for controlling unconsolidated sand in an oil well with permeable cement 失效在具有渗透性水泥的油井中控制不连续的砂的方法
公开(公告)号：US3768561A
公开(公告)日：1973-10-30
申请号：US3768561D
申请日：1971-12-20
Applicant: TEXACO INC
Inventor： TATE J
CPC classification number: C09K8/5751 , C09K8/78 , C09K8/845 , C09K8/88
Abstract: The movement of unconsolidated sand from a subterranean hydrocarbon-containing formation into a wellbore during recovery of the formation hydrocarbon fluids is prevented by forming a permeable, acid-susceptible cement barrier between the formation and the wellbore. The permeability of said acid-susceptible cement barrier or pack traversing a producing formation is improved by treatment with a composition comprised of mineral acid having dissolved therein a vinylpyrrolidone polymer, which composition slowly reacts with acid-soluble components accumulated at the pack face and within the cement pack so that the permeability of the cement barrier to the flow of formation hydrocarbon fluids is increased while adequate mechanical strength and proper pore size to prevent the movement of unconsolidated formation sand into the bore-hole is maintained and recovering formation hydrocarbon fluids from the formation through the formed permeable cement barrier.
Abstract translation: 通过在地层和井眼之间形成渗透性，酸敏感的水泥阻挡层，防止了在回收地层烃流体期间将未固结砂从地下含烃地层运动到井眼中。 通过用其中溶解有乙烯基吡咯烷酮聚合物的无机酸组成的组合物进行处理，改善了所述酸敏感的水泥阻挡层或穿过生产层的组合物的渗透性，该组合物与积聚在包装面上的酸溶性组分缓慢反应， 水泥包装，使得水泥隔板对地层烃流体流动的渗透性增加，同时保持足够的机械强度和适当的孔径以防止未固结的地层砂向钻孔中的移动，并从地层中回收形成烃流体 通过形成的渗透性水泥屏障。
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12.发明授权Vertical downward gas-driven miscible blanket flooding oil recovery process 失效垂直下行气体驱动的不可逾越的空气净化油回收过程
公开(公告)号：US3850243A
公开(公告)日：1974-11-26
申请号：US35741773
申请日：1973-05-04
Applicant: TEXACO INC
CPC classification number: E21B43/40 , E21B43/168
Abstract: A vertical downward gas-driven miscible blanket oil recovery process wherein the spreading rate of the solvent blanket on top of the oil column is increased by adding to the conventional solvent a high density solvent such as carbon disulfide, carbon tetrachloride or certain halogenated hydrocarbons. Sufficient dense solvent is added to the conventional hydrocarbon solvent to increase the density of the injected solvent mixture to a value only slightly less than the density of the formation petroleum being displaced, so that a stable blanket will be maintained with substantially increased rate and extent of spreading of the solvent blanket on top of the oil column. The miscible blanket is displaced downward by injecting gas such as natural gas, methane, or carbon dioxide into the upper portion of the reservoir.
Abstract translation: 垂直向下气体驱动的混合橡皮布油回收方法，其中通过向常规溶剂中加入诸如二硫化碳，四氯化碳或某些卤代烃的高密度溶剂来增加溶剂层在油柱顶上的铺展速率。 将足够的致密溶剂加入到常规烃溶剂中以将注入的溶剂混合物的密度提高到仅略低于被置换的地层石油的密度的值，使得将以基本上增加的速率和程度保持稳定的覆盖层 将溶剂毯覆盖在油柱顶部。 通过将诸如天然气，甲烷或二氧化碳的气体注入储存器的上部，可混合的毯子向下移位。
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公开(公告)号：US3845820A
公开(公告)日：1974-11-05
申请号：US35741373
申请日：1973-05-04
Applicant: TEXACO INC
Abstract: A solution-mining technique for recovering bitumen from subterranean bitumen-containing deposits such as tar sand deposits having a ratio of overburden thickness to formation thickness of one or less. The overburden is excavated from the deposit and injection and production wells are completed open hole into the tar sand interval, and a solvent for bitumen, said solvent having a density greater than the density of water, is injected into an injection well and a mixture of solvent and bitumen is produced from the remotely located production well. The solvent moves in a horizontal direction across the top portion of the tar sand deposit. Water is used to fill the cavity above the tar sand deposit previously occupied by the overburden. The solvent remains in a thin horizontal layer between the water and the top of the tar sand deposit. As the bitumen is removed from an upper portion of the tar sand interval, water moves down to occupy the area previously occupied by bitumen, and the horizontally moving solvent layer is forced down deeper into the tar sand deposit.
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公开(公告)号：US3807500A
公开(公告)日：1974-04-30
申请号：US34050473
申请日：1973-03-12
Applicant: TEXACO INC
Abstract: A method for treating subterranean formations containing water sensitivity clays which have sustained permeability damage due to contact with fresh water, to increase the permeability of the subterranean formations, comprising injecting into the formation via wells drilled into such formations a solution of potassium chloride followed by treating with a heated fluid including steam having a temperature of at least 300* F. for several hours, followed by treating the formation with mud acid or retarded mud acid.
Abstract translation: 一种用于处理含有水敏感性粘土的地下地层的方法，所述地下地层由于与淡水接触而具有持续的渗透性损害，以增加地下地层的渗透性，包括通过钻入这种地层的井将经氯化钾溶液接着处理 加热流体包括温度至少为300°F的蒸汽数小时，然后用泥浆酸或延迟泥浆酸处理地层。
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公开(公告)号：US3806451A
公开(公告)日：1974-04-23
申请号：US18288071
申请日：1971-09-22
Applicant: TEXACO INC
Inventor： TATE J
CPC classification number: C02F5/14 , C09K8/528 , Y10S507/927
Abstract: METHOD FOR THE TREATMENT OF SCALE, PARTICULARLY CALCIUM SULFATE SCALE, USING A WATER SOLUBLE PARTIALLY ESTERIFIED POLYPHOSPHORIC ACID HAVING A PRESCRIBED FORMULA, THE CORRESPONDING WATER SOLUBLE SALTS AND MIXTURES.
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Patent Agency Ranking
公开(公告)号：US3779793A
公开(公告)日：1973-12-18
申请号：US3779793D
申请日：1971-12-20
Applicant: TEXACO INC
CPC classification number: C08G18/4829 , C08G18/283 , C08G18/80
Abstract: This invention concerns methods of imparting properties of scale resistance to surfaces upon which adherent scale is normally prone to form during contact with mineralized waters through the use of novel, polyurethane-type resins, characterized by containing pendant polyoxyalkylene chains attached to a basic polyurethane skeletal network wherein the polyurethane is formed utilizing a blocked isocyanate.
Abstract translation: 本发明涉及通过使用新颖的聚氨酯类树脂赋予表面附着尺度通常易于在与矿化水接触期间形成的表面的性能的方法，其特征在于包含附着在基本聚氨酯骨架网上的侧链聚氧化烯链 其中使用封端异氰酸酯形成聚氨酯。
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公开(公告)号：US3719229A
公开(公告)日：1973-03-06
申请号：US3719229D
申请日：1971-06-21
Applicant: TEXACO INC
Inventor： TATE J
CPC classification number: C09K8/607 , C09K8/72 , Y10S507/923 , Y10S507/933
Abstract: Significant improvement in the recovery of hydrocarbons from a subterranean hydrocarbon-bearing formation containing acidsoluble components is accomplished by injecting into the formation via an injection well drilled into a formation communicating with an adjacent producing well and containing acid-soluble components which may or may not have water-sensitive clays and shales included therein, an aqueous acidic solution of a phosphate ester of prescribed formula whereupon the acid component reacts with the acid-soluble components of the formation creating passageways or enlarging existing passageways thus facilitating the flow of fluids therein and the phosphate ester prevents post precipitation of dissolved salts and thereby increases the recovery of hydrocarbons from the formation through the adjacent producing well.
Abstract translation: 含有酸溶性成分的含地下含烃地层的烃回收率的显着改善是通过将注入井注入到与地层相邻的生产井连通的地层中并且含有可溶于或可能的 其中不含有水敏粘土和页岩，具有规定式的磷酸酯的酸性水溶液，因此酸组分与形成通道的酸溶性组分反应或扩大现有通道，从而促进流体流动， 磷酸酯防止溶解盐的后沉淀，从而增加烃从地层通过相邻生产井的回收。
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公开(公告)号：US3847224A
公开(公告)日：1974-11-12
申请号：US35740673
申请日：1973-05-04
Applicant: TEXACO INC
IPC: E21B43/16
CPC classification number: E21B43/16
Abstract: A miscible displacement process for the recovery of petroleum from a petroleum-bearing reservoir is performed in situ by use of a solvent miscible with the petroleum and having a density greater than water followed by an aqueous driving fluid wherein the solvent is introduced in the vapor state into the reservoir or is vaporized within the reservoir by a heated driving fluid and proceeds in a substantially horizontal manner through the reservoir forming a condensation front ahead of the driving fluid.
Abstract translation: 通过使用与石油混溶并且密度大于水的溶剂，然后是水性驱动流体，其中溶剂以蒸汽状态引入，用于从含石油储存器回收石油的可混合置换方法 通过加热的驱动流体进入储存器或在储存器内蒸发，并以基本上水平的方式通过储存器前进，形成驱动流体前方的冷凝前端。
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19.发明授权Miscible displacement of petroleum using carbon disulfide and a hydrocarbon solvent 失效使用碳氢化合物和烃类溶剂的石油的不合理位移
公开(公告)号：US3847221A
公开(公告)日：1974-11-12
申请号：US35741573
申请日：1973-05-04
Applicant: TEXACO INC
IPC: E21B43/16
CPC classification number: E21B43/16
Abstract: A miscible displacement process for the recovery of petroleum from a petroleum bearing formation is performed in situ by the use of a solvent system miscible with the petroleum, the solvent system comprising carbon disulfide and a hydrocarbon solvent.
Abstract translation: 通过使用与石油混溶的溶剂系统，包含二硫化碳和烃溶剂的溶剂系统，原位进行用于从含石油地层回收石油的混溶置换方法。
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20.发明授权
公开(公告)号：US3823777A
公开(公告)日：1974-07-16
申请号：US35741073
申请日：1973-05-04
Applicant: TEXACO INC
Abstract: A petroleum recovery method employing a mixed solvent for use in formation in contact with and over-laying a substantially water saturated porous formation which is prone to bottom water coning. The mixed solvent density is less than the density of water and greater than the density of the formation petroleum, and has a boiling point less than the boiling point of the formation petroleum. The solvent is injected into the formation near the petroleum-water interface and the mixture comprising solvent and petroleum is recovered from production wells. The solvent may be separated from the produced petroleum-solvent mixture by distillation and recondensation for reinjection into the formation.
Abstract translation: 一种采用混合溶剂的石油回收方法，其用于与容易发生底部水锥形的基本上水饱和的多孔结构接触并过度铺设。 混合溶剂密度小于水的密度，大于地层石油的密度，沸点低于地层石油的沸点。 将溶剂注入石油 - 水界面附近的地层中，从生产井回收包含溶剂和石油的混合物。 溶剂可以通过蒸馏和再结晶从生产的石油 - 溶剂混合物中分离出来再注入到地层中。
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