Methods of treating flowback water
    2.
    发明授权
    Methods of treating flowback water 有权
    处理回流水的方法

    公开(公告)号:US08871691B2

    公开(公告)日:2014-10-28

    申请号:US12794550

    申请日:2010-06-04

    摘要: Methods of treating flowback water from a subterranean formation penetrated by a well bore are provided, comprising: (a) providing remediated flowback water having a ferrous iron (Fe+2) ion concentration of less than about 100 milligrams of ferrous iron ion per liter of flowback water, a barium ion (Ba+2) concentration of less than about 500 milligrams of barium ion per liter of flowback water, and a calcium ion (Ca+) concentration of at least about 1,000 milligrams of calcium ion per liter of remediated flowback water; and (b) treating the flowback water with: (i) at least one friction reducing agent; and (ii) at least one scale formation inhibiting agent and/or at least one iron precipitation control agent to provide treated flowback water which can be reused as fracturing fluid in a well drilling operation.

    摘要翻译: 提供了从井眼渗透的地层中处理回流水的方法,其包括:(a)提供修复的回流水,其具有的铁含量(Fe + 2)离子浓度小于约100毫克亚铁离子/升 回流水,钡离子(Ba + 2)浓度小于约500毫克钡离子/升回流水,钙离子(Ca +)浓度至少约1,000毫克钙离子/升修复回流水 ; 和(b)用以下物质处理回流水:(i)至少一种减摩剂; 和(ii)至少一种结垢抑制剂和/或至少一种铁沉淀控制剂,以提供经处理的回流水,其可以在钻井操作中作为压裂液再利用。

    Compositions and methods for controlling downhole sulfide deposits
    4.
    发明授权
    Compositions and methods for controlling downhole sulfide deposits 失效
    控制井下硫化物沉积物的组成和方法

    公开(公告)号:US06774090B2

    公开(公告)日:2004-08-10

    申请号:US10126133

    申请日:2002-04-19

    IPC分类号: C09K300

    摘要: Compositions and methods for treating systems, especially oil and/or gas wells, characterized by metal sulfide deposits are provided. Compositions according to the invention generally comprise a thioacid, an amine salt, and a diphosphonic acid. Methods according to the invention may comprise introducing such composition into a system characterized by metal sulfide deposits, or alternatively, introducing into the system individual quantities of the composition components.

    摘要翻译: 提供了以金属硫化物沉积为特征的用于处理系统,特别是油和/或气井的组合物和方法。 根据本发明的组合物通常包含硫代酸,胺盐和二膦酸。 根据本发明的方法可以包括将这种组合物引入到以金属硫化物沉积物为特征的系统中,或者可选地,向系统中引入单独量的组合物组分。

    Method and composition for removing elemental sulfur from high
temperature, high pressure wells and flow lines
    7.
    发明授权
    Method and composition for removing elemental sulfur from high temperature, high pressure wells and flow lines 失效
    从高温高压井和流水线中去除元素硫的方法和组成

    公开(公告)号:US4290900A

    公开(公告)日:1981-09-22

    申请号:US43517

    申请日:1979-05-29

    IPC分类号: C09K8/532 E21B43/00 C23G5/02

    CPC分类号: C09K8/532 Y10S507/932

    摘要: A relatively nonvolatile, high molecular weight sulfur solvent produced by activating a dialkyl disulfide oil by the addition of a relatively high molecular weight predominantly aliphatic amine (e.g., a N-alkyl-1,3-propane diamine) and optionally further increasing the molecular weight by the addition of elemental sulfur. Such a sulfur solvent is particularly useful in sustaining a liquid phase at bottomhole conditions for high temperature, high pressure sour gas.

    摘要翻译: 通过加入相对高分子量的主要是脂族胺(例如,N-烷基-1,3-丙二胺)来活化二烷基二硫化物油而产生的相对不挥发的高分子量硫溶剂,并任选进一步增加分子量 通过添加元素硫。 这种硫溶剂特别可用于在井底条件下维持高温,高压酸性气体的液相。

    Process of cleaning wells with carbon disulfide emulsions
    9.
    发明授权
    Process of cleaning wells with carbon disulfide emulsions 失效
    用碳水化合物乳化液清洗干燥的方法

    公开(公告)号:US3732166A

    公开(公告)日:1973-05-08

    申请号:US3732166D

    申请日:1971-09-15

    申请人: PETROLITE CORP

    发明人: LISSANT K

    IPC分类号: C09K8/524 E21B43/00

    摘要: NON-NEWTONIAN FORMULATIONS CONTAINING CARBON DISULFIDE (CS2) OF REDUCED TOXICITY AND FLAMMABILITY. THESE FORMULATIONS ARE ILLISTRATED BY HIGH INTERNAL PHASE RATIO (HIPR) EMULSIONS CONTAINING CARBON DISULFIDE IN THE INTERNAL PHASE, SAID INTERNAL PHASE CONTAINING MORE THAN ABOUT 60% OF THE FORMULATION BY VOLUME AND PREFERABLY MORE THAN ABOUT 80% OF THE FORMULATION BY VOLUME. THESE FORMULATIONS ARE PARTICULARLY USEFUL IN CLEANING OIL AND GAS WELLS BY THE REMOVAL OF WAX AND/OR SULFUR.