本文選題：深水鉆井 + 救援井　； 參考：《石油鉆探技術(shù)》2017年01期

【摘要】：國(guó)內(nèi)深水救援井井眼軌道設(shè)計(jì)既無(wú)標(biāo)準(zhǔn)可供參考,也無(wú)實(shí)際設(shè)計(jì)經(jīng)驗(yàn)可供借鑒,為此,從救援井實(shí)施限定條件著手,制定了深水救援井井口位置選擇圖版和連通點(diǎn)(目標(biāo)點(diǎn))位置選擇原則,對(duì)"J"形、平行接近連通形、直接連通形以及穿越(pass-by)形等4種救援井常用井眼軌道進(jìn)行了對(duì)比分析,認(rèn)為穿越(pass-by)形軌道在擴(kuò)大探測(cè)范圍和提高定位精度方面有很大的優(yōu)勢(shì),因而將其作為深水救援井井眼軌道的首先,并將其劃分為接近、測(cè)距定位、追蹤跟隨和連通4個(gè)階段,研究了各階段的切入角、井間距等關(guān)鍵設(shè)計(jì)要素,確定救援井井眼軌道最大井斜角小于60°,狗腿度不超過(guò)3°/30m,形成了深水救援井井眼軌道設(shè)計(jì)基本方法,并利用該方法對(duì)中國(guó)海油海外區(qū)塊一口深水救援井的井眼軌道進(jìn)行了設(shè)計(jì)。研究結(jié)果表明,研究形成的深水救援井井眼軌道設(shè)計(jì)基本方法可為國(guó)內(nèi)深水救援井井眼軌道設(shè)計(jì)提供指導(dǎo)。
[Abstract]:There is neither standard nor practical design experience for reference in the design of deep water well trajectory in China. Therefore, starting with the implementation of the conditions of the rescue well, The selection chart of well head position and the position selection principle of connected point (target point) of deep water rescue well are worked out. Four kinds of commonly used borehole tracks, such as "J" shape, parallel close connected form, direct connected form and passing through pass-byform, are compared and analyzed. It is considered that traversing the pass-by) orbit has great advantages in expanding the detection range and improving the positioning accuracy. Therefore, it is regarded as the first stage of the borehole track in deep water rescue, and it is divided into four stages: approaching, ranging and locating, tracking, following and connecting. The key design factors such as tangent angle, well spacing and other key design elements in each stage are studied. It is determined that the maximum slant angle of the borehole track is less than 60 擄and the dog leg degree is not more than 3 擄/ 30 m. The basic design method of the deep water rescue borehole track is formed. This method is used to design the borehole track of a deep water rescue well in the offshore block of China Sea Oil. The results show that the basic method of deep water rescue well trajectory design can provide guidance for deep water rescue well trajectory design in China.
【作者單位】： 中海油研究總院;
【基金】：國(guó)家科技重大專(zhuān)項(xiàng)“深水鉆完井工程技術(shù)”(編號(hào):2011ZX05026-001)部分研究?jī)?nèi)容
【分類(lèi)號(hào)】：TE52

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