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    Steam distribution and production of hydrocarbons in a horizontal well
    1.
    发明授权
    Steam distribution and production of hydrocarbons in a horizontal well 有权
    在水平井中蒸汽分配和生产碳氢化合物

    公开(公告)号：US6158510A

    公开(公告)日：2000-12-12

    申请号：US174758

    申请日：1998-10-19

    申请人： Russell McNeill Bacon ,  George Robert Scott ,  Daryl Gordon Youck ,  Kai Sun Chan

    发明人： Russell McNeill Bacon ,  George Robert Scott ,  Daryl Gordon Youck ,  Kai Sun Chan

    IPC分类号： E21B43/08 ,  E21B43/24 ,  E03B3/18

    CPC分类号： E21B43/2408 ,  E21B43/088

    摘要： A system for enhancing steam distribution in a thermal stimulation phase, and for reducing the production of particulate matter with hydrocarbon fluids in a production phase, has a base pipe with a limited number of spaced-apart holes. The spaced-apart holes are sized and located so that steam is uniformly distributed in the reservoir. A collar is disposed around each hole to deflect the steam into an annulus between the base pipe and a wire-wrap screen section to avoid erosion and deterioration of the wire-wrap screen, which is required in the production phase. Mobilized hydrocarbon fluids flow to the wire-wrap screen section, which acts to filter particulate matter so that the production of particulate matter with hydrocarbon fluid is limited. The open area in the base pipe is significantly reduced, as compared with conventional methods, so that at the design injection rates, the pressure drop through the spaced-apart holes is larger than the pressure drop along the base pipe. During hydrocarbon fluid production, the pressure drop from the reservoir to the spaced-apart holes is low due to the presence of the wire-wrap screens. The open area in the base pipe while significantly reduced at the design production rates, as compared with conventional methods, should not unduly limit production rates.

    摘要翻译： 用于增强热刺激阶段中的蒸汽分布并且用于在生产阶段中用烃流体减少颗粒物质的产生的系统具有具有有限数量的间隔开的孔的基管。 间隔开的孔的尺寸和位置使得蒸汽均匀分布在储存器中。 围绕每个孔设置套环以将蒸汽偏转到基管和电线包裹屏部分之间的环形空间中，以避免在生产阶段所需的电线包裹屏幕的侵蚀和劣化。 流动的碳氢化合物流体流入绕线筛网部分，其用于过滤颗粒物质，使得具有烃流体的颗粒物质的产生受到限制。 与常规方法相比，基管中的开口面积显着减小，使得在设计注射速率下，通过间隔开的孔的压降大于沿着基管的压降。 在烃流体生产期间，由于存在电线包裹屏幕，从储存器到间隔开的孔的压降很低。 与常规方法相比，基管中的开放面积以设计生产率显着降低，不应过度限制生产率。