公开(公告)号：US20120247760A1

公开(公告)日：2012-10-04

申请号：US13424080

申请日：2012-03-19

申请人： Thomas J. Wheeler ,  David A. Brown ,  Tawfik N. Nasr

发明人： Thomas J. Wheeler ,  David A. Brown ,  Tawfik N. Nasr

IPC分类号： E21B43/24

CPC分类号： E21B43/2406

摘要： A method for recovering petroleum from a formation, wherein at least two injection wells and at least one production well are in fluid communication with said formation, comprising: introducing a gaseous mixture into a first and a second injection well at a temperature and a pressure, wherein said gaseous mixture comprises steam and non-condensable gas (NCG); and recovering a fluid comprising petroleum from said production well, wherein said injection wells and a production well are horizontal wells, and wherein said first injection well is disposed 1-10 meters above said production well, and said second injection well is disposed at least 5 meters above said first injection well.

摘要翻译： 一种用于从地层回收石油的方法，其中至少两个注入井和至少一个生产井与所述地层流体连通，包括：在温度和压力下将气态混合物引入第一和第二注入井， 其中所述气体混合物包括蒸汽和不可冷凝气体（NCG）; 以及从所述生产井回收包含石油的流体，其中所述注入井和生产井是水平井，并且其中所述第一注入井设置在所述生产井上方1-10米处，并且所述第二注入井设置在至少5 高于所述第一注射井。

公开(公告)号：US20120312534A1

公开(公告)日：2012-12-13

申请号：US13471928

申请日：2012-05-15

申请人： Tawfik N. Nasr ,  Thomas J. Wheeler

发明人： Tawfik N. Nasr ,  Thomas J. Wheeler

IPC分类号： E21B43/24

CPC分类号： E21B43/2408 ,  E21B43/12 ,  E21B43/168

摘要： Methods are provided for enhancing hydrocarbon recovery through gas production control for noncondensable gases in SAGD or ES-SAGD operations. Steam may be injected into one or more injection wells to heat the hydrocarbons and reduce their viscosity to more easily produce the hydrocarbons. A noncondensable gas may be injected into the injection wells to beneficially reduce the steam-to-oil ratio, improving economic recovery. Unfortunately, excessive production of noncondensable gases can adversely suppress hydrocarbon production rates. To counteract this problem, gas production rates at the production wells may be controlled to optimize hydrocarbon output by limiting the produced gas-to-water ratio to certain limited ranges. The noncondensable gas may optionally comprise a combustion gas such as flue gas. By providing a useful application of existing combustion gases, green house gases emissions may be reduced. Advantages include higher efficiencies, lower costs, reduced hydrocarbon extraction time, and in some embodiments, reduced greenhouse gas emissions.

摘要翻译： 提供了用于通过SAGD或ES-SAGD操作中不凝性气体的气体生产控制来提高烃回收的方法。 可以将蒸汽注入一个或多个注入井中以加热烃并降低其粘度以更容易地产生烃。 可以将不凝气体注入注入井中，以有利地降低蒸汽与油比，改善经济恢复。 不幸的是，过量的不凝气体的产生可以不利地抑制碳氢化合物生产速率。 为了解决这个问题，可以控制生产井的天然气生产率，以通过将产生的气 - 水比限制在某些有限的范围来优化碳氢化合物输出。 不可冷凝气体可以任选地包括诸如烟道气的燃烧气体。 通过提供现有燃烧气体的有用应用，可以降低温室气体排放。 优点包括提高效率，降低成本，减少碳氢化合物提取时间，在某些实施方案中减少温室气体排放。

公开(公告)号：US09739123B2

公开(公告)日：2017-08-22

申请号：US13424080

申请日：2012-03-19

申请人： Thomas J. Wheeler ,  David A. Brown ,  Tawfik N. Nasr

发明人： Thomas J. Wheeler ,  David A. Brown ,  Tawfik N. Nasr

IPC分类号： E21B43/24

CPC分类号： E21B43/2406

摘要： A method for recovering petroleum from a formation, wherein at least two injection wells and at least one production well are in fluid communication with said formation, comprising: introducing a gaseous mixture into a first and a second injection well at a temperature and a pressure, wherein said gaseous mixture comprises steam and non-condens able gas (NCG); and recovering a fluid comprising petroleum from said production well, wherein said injection wells and a production well are horizontal wells, and wherein said first injection well is disposed 1-10 meters above said production well, and said second injection well is disposed at least 5 meters above said first injection well.

公开(公告)号：US08960286B2

公开(公告)日：2015-02-24

申请号：US13233551

申请日：2011-09-15

申请人： Dwijen K. Banerjee ,  Tawfik N. Nasr ,  Wayne R. Dreher, Jr. ,  Francis E. Parsche ,  Mark A. Trautman ,  Victor Hernandez

发明人： Dwijen K. Banerjee ,  Tawfik N. Nasr ,  Wayne R. Dreher, Jr. ,  Francis E. Parsche ,  Mark A. Trautman ,  Victor Hernandez

IPC分类号： E21B43/16 ,  E21B43/24 ,  C10G15/08

CPC分类号： E21B43/2408 ,  C10G15/08 ,  C10G2300/1033 ,  C10G2300/4037 ,  C10G2400/16

摘要： A method of producing heavy oil by first injecting water and sulfur hexafluoride molecules into a region. The method then introduces electromagnetic waves such as microwaves and/or radio frequencies into the region at a frequency sufficient to excite the water and the sulfur hexafluoride molecules and increase the temperature of at least a portion of the water and sulfur hexafluoride molecules within the region to produce heated water and sulfur hexafluoride molecules. At least a portion of the heavy oil is heated in the region by contact with the heated water and sulfur hexafluoride molecules to produce heated heavy oil. The heated heavy oil is then produced.

摘要翻译： 首先将水和六氟化硫分子注入到区域中来生产重油的方法。 该方法然后以足以激发水和六氟化硫分子的频率将电磁波（例如微波和/或射频）引入该区域，并将该区域内的六氟化硫和六氟化硫分子的至少一部分的温度升高到 产生加热水和六氟化硫分子。 至少一部分重油通过与加热的水和六氟化硫分子接触而在该区域加热，以产生加热的重油。 然后生产加热的重油。

公开(公告)号：US20120085537A1

公开(公告)日：2012-04-12

申请号：US13233551

申请日：2011-09-15

申请人： Dwijen K. Banerjee ,  Tawfik N. Nasr ,  Wayne R. Dreher, JR. ,  Francis E. Parsche ,  Mark A. Trautman ,  Victor Hernandez

发明人： Dwijen K. Banerjee ,  Tawfik N. Nasr ,  Wayne R. Dreher, JR. ,  Francis E. Parsche ,  Mark A. Trautman ,  Victor Hernandez

IPC分类号： E21B43/24

CPC分类号： E21B43/2408 ,  C10G15/08 ,  C10G2300/1033 ,  C10G2300/4037 ,  C10G2400/16

摘要： A method of producing heavy oil by first injecting water and sulfur hexafluoride molecules into a region. The method then introduces electromagnetic waves such as microwaves and/or radio frequencies into the region at a frequency sufficient to excite the water and the sulfur hexafluoride molecules and increase the temperature of at least a portion of the water and sulfur hexafluoride molecules within the region to produce heated water and sulfur hexafluoride molecules. At least a portion of the heavy oil is heated in the region by contact with the heated water and sulfur hexafluoride molecules to produce heated heavy oil. The heated heavy oil is then produced.

摘要翻译： 首先将水和六氟化硫分子注入到区域中来生产重油的方法。 该方法然后以足以激发水和六氟化硫分子的频率将电磁波（例如微波和/或射频）引入该区域，并将该区域内的六氟化硫和六氟化硫分子的至少一部分的温度升高到 产生加热水和六氟化硫分子。 至少一部分重油通过与加热的水和六氟化硫分子接触而在该区域加热，以产生加热的重油。 然后生产加热的重油。

公开(公告)号：US08720548B2

公开(公告)日：2014-05-13

申请号：US13154897

申请日：2011-06-07

申请人： Dwijen K. Banerjee ,  John L. Stalder ,  Tawfik N. Nasr ,  Wayne Reid Dreher, Jr.

发明人： Dwijen K. Banerjee ,  John L. Stalder ,  Tawfik N. Nasr ,  Wayne Reid Dreher, Jr.

IPC分类号： E21B43/24 ,  C09K8/592

CPC分类号： E21B43/2406 ,  E21B43/2408

摘要： A process for utilizing microwaves to heat H2O and sulfur hexafluoride within a subterranean region wherein the heated H2O and sulfur hexafluoride contacts heavy oil in the subterranean region to lower the viscosity of the heavy oil and improve production of the heavy oil.

摘要翻译： 一种利用微波在地下区域内加热H 2 O和六氟化硫的方法，其中加热的H 2 O和六氟化硫与地下区域中的重油接触，以降低重油的粘度并改善重油的产生。

公开(公告)号：US5056596A

公开(公告)日：1991-10-15

申请号：US534352

申请日：1990-06-07

申请人： Alexander S. McKay ,  Tawfik N. Nasr

发明人： Alexander S. McKay ,  Tawfik N. Nasr

IPC分类号： C09K8/592 ,  E21B43/16 ,  E21B43/24

CPC分类号： C09K8/592 ,  E21B43/164 ,  E21B43/24 ,  Y02P90/70

摘要： Laboratory coreflood experiments were conducted on Athabasca oil sands using hot water and caustic or carbon dioxide. Production temperatures were maintained at 150.degree. C. or lower and at an injection pressure of 3.55 MPa (500 psi). The objective of the experiments was to determine the conditions under which oil-in-water (O/W) emulsion could be produced in-situ. In addition, the study was to investigate the potential benefit of adding carbon dioxide to hot water to improve bitumen recovery.The results prove that when the pH of injected fluids is between 10.5 and 11.5, the O/W emulsion predominates. The emulsion is stable and has a viscosity much lower than that of the oil itself, due to the continuous water phase, and should beneficial in the recovery of heavy oil and bitumen. When the injected fluids have a pH less than 10.5, the water-in-oil (W/O) emulsion predominates. The laboratory data indicate that even this type of emulsion behaves as an O/W in the core but it is unstable and when produced the droplets quickly coalesce and immediately form the observed W/O emulsion.The addition of carbon dioxide to hot water at low temperatures proved to be effective in improving bitumen recovery over that from hot water alone. This is believed to be due to the effect of carbon dioxide absorption in reducing bitumen viscosity which resulted in improved bitumen mobilization. Another beneficial effect is the increase in pressure gradient due to the presence of free carbon dioxide, beyond the solubility limit, in the injected stream. The hot water-CO.sub.2 runs produces mostly W/O emulsion. The best recovery was achieved when the produced fluids temperatures was around 130.degree. C.

摘要翻译： 实验室核心实验使用热水和苛性碱或二氧化碳在Athabasca油砂上进行。 生产温度保持在150℃或更低，注射压力为3.55MPa（500psi）。 实验的目的是确定原位生产水包油（O / W）乳液的条件。 另外，这项研究是为了研究将二氧化碳添加到热水中以提高沥青回收的潜在好处。 结果证明，当注入流体的pH值在10.5和11.5之间时，O / W乳液占优势。 由于连续的水相，乳液稳定，粘度远低于油本身，对重油和沥青的回收有利。 当注入的流体的pH小于10.5时，油包水（W / O）乳液占优势。 实验室数据表明即使这种类型的乳液表现为核心中的O / W，但它是不稳定的，并且当产生时，液滴快速聚结并立即形成观察到的W / O乳液。 在低温下向二氧化碳中加入二氧化碳证明可以有效地提高沥青回收率，而不仅限于单独来自热水的沥青回收率。 这被认为是由于二氧化碳吸收在降低沥青粘度中的作用，这导致改善的沥青动员。 另一个有益的效果是由于在注射流中存在超过溶解度极限的游离二氧化碳，压力梯度的增加。 热水 - 二氧化碳运行主要产生W / O乳液。 当所产生的流体温度为约130℃时，达到最佳回收率。

公开(公告)号：US20120168158A1

公开(公告)日：2012-07-05

申请号：US13334679

申请日：2011-12-22

申请人： Tawfik N. Nasr ,  David A. Brown

发明人： Tawfik N. Nasr ,  David A. Brown

IPC分类号： E21B43/22

CPC分类号： E21B43/24 ,  E21B43/16 ,  E21B43/18

摘要： Methods are provided using heated fluids along with combined/drive cyclical injection/production profiles to enhance hydrocarbon recovery from shallow and/or low mobility reservoirs. In certain embodiments, injection and production flow rates to and from the reservoir are varied to beneficially modulate certain pressure drive profiles between a minimum pressure and a maximum pressure. During these drive profile modulations, heated water, solvent, and surfactant are injected into the reservoir. The combination of injected fluids and cyclical pressure drive profiles beneficially enhances hydrocarbon recovery from the reservoir. Other optional variations include using multiple injection and/or production wells. Advantages include accelerated hydrocarbon recovery, higher production efficiencies, and lower costs. These advantages ultimately translate to higher production and/or reduction of total hydrocarbon extraction time. These methods are particularly advantageous when applied to shallow reservoirs (e.g. reservoirs having depths less than or equal to about 150 meters).

摘要翻译： 使用加热流体以及组合/驱动循环注入/生产曲线提供方法以增强从浅层和/或低迁移率储层的烃回收。 在某些实施例中，改变来自储存器的注入和生产流速，以有利地调制最小压力和最大压力之间的某些压力驱动曲线。 在这些驱动轮廓调制过程中，将热水，溶剂和表面活性剂注入储存器。 注入流体和循环压力驱动曲线的组合有利地增强了从储层中的烃回收。 其他可选的变化包括使用多个注入和/或生产井。 优点包括加速碳氢化合物回收，更高的生产效率和更低的成本。 这些优点最终转化为更高的总碳氢化合物提取时间的生产和/或降低。 当应用于浅层储层（例如深度小于或等于约150米的储层）时，这些方法特别有利。

公开(公告)号：US20110253369A1

公开(公告)日：2011-10-20

申请号：US13154897

申请日：2011-06-07

申请人： Dwijen K. Banerjee ,  John L. Stalder ,  Tawfik N. Nasr ,  Wayne Reid Dreher, JR.

发明人： Dwijen K. Banerjee ,  John L. Stalder ,  Tawfik N. Nasr ,  Wayne Reid Dreher, JR.

IPC分类号： E21B43/24

CPC分类号： E21B43/2406 ,  E21B43/2408

摘要： A process for utilizing microwaves to heat H2O and sulfur hexafluoride within a subterranean region wherein the heated H2O and sulfur hexafluoride contacts heavy oil in the subterranean region to lower the viscosity of the heavy oil and improve production of the heavy oil.

摘要翻译： 一种利用微波在地下区域内加热H 2 O和六氟化硫的方法，其中加热的H 2 O和六氟化硫与地下区域中的重油接触，以降低重油的粘度并改善重油的产生。