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首页> 外文会议>SPE Kingdom of Saudi Arabia Annual Technical Symposium and Exhibition >The Application of Water Shut-off Technique in Jidong Oilfield
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The Application of Water Shut-off Technique in Jidong Oilfield

机译：水截止技术在冀东油田的应用

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Most of horizontal wells was completed with uncemented screens to prevent from sand production in some oilfields near Bohai Bay east China. In recent years oil production of the wells have begun to decline due to water out of the wells, especially water rates in part of the wells were more than 98%. Finally higher water out resulted in the wells to be closed. A technique of water shut-off was developed. First of all, a tools string for chemical agent injection （TSCAI） was run into the wellbore. The chemical agent was injected into the annular space between the screens and the formation to form annular chemical packers (ACP). So the ACP could separate the formation into several sections to avoid annular communication. Secondly, a liner hanger with sliding switches and swelling packers (LHSSP) was run after TSCAI was pulled out of the well. The liner hanger was released after the packers were set. Finally a mechanical on-off element for the sleeves with coiled tubing string (ESCTS) was run to openclose the switches separately. By analyzing the well production date the operators determine that which layer water ed out. The ESCTS was run to closed water out layer. Well-A was a horizontal well drilled in 2006 in the Gaoqianbei zone of Jidong Oilfield. In 2010 production logging date showed that water content was 98.7%. A water shut-off action was done. The whole horizontal interval was separated three sections (No.1, No.2, No.3 layer). Finally after No.1 layer was confirmed to be water cut layer to be closed, daily oil production was improved from 2 tons to 4 tons. Water content reduced to 70.9%. Generally, the successful water shut-off for well-A showed that the technique could efficiently enhance oil recovery with simple operation and low cost. It provides a new water shut-off method for other wells with different completions.
机译：大多数水平井完成了未解剖屏幕，以防止在渤海湾华东湾附近的一些油田中的沙子生产。近年来，由于水从井中的水，井的石油生产已经开始下降，特别是井中的水费超过98％。最后越来越高的水导致井被关闭。开发了一种水关闭技术。首先，将化学试剂注入（TSCAI）的工具串进入井筒。将化学试剂注入筛网和地层之间的环形空间中以形成环形化学填料（ACP）。因此，ACP可以将形成分离成几个部分以避免环形通信。其次，在TSCAI被拉出井之后，运行带有滑动开关和膨胀封装器（LHSSP）的衬里衣架。在设置包装器后释放衬垫吊架。最后，运行带有盘管串（ESCTS）的套管的机械开关元件以单独打开关闭开关。通过分析良好的生产日期，运营商确定了哪层水被送出。 ESCTS运行到封闭水层。 Hone-A是2006年在冀东油田的高黔北区钻井。 2010年生产伐木日期显示含水量为98.7％。完成了水关闭行动。整个水平间隔是分离的三个部分（No.1，No.2，No.3层）。最后在No.1层被证实是待封闭的水切片后，每日石油产量从2吨提高到4吨。水含量降至70.9％。通常，井的成功水关闭显示，该技术可以通过简单的操作和低成本有效地提高储油。它为具有不同完井的其他井提供了新的水关闭方法。

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