本文關(guān)鍵詞：G-H1定向井井眼軌跡設(shè)計(jì)與控制研究　出處：《東北石油大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 定向井 井眼軌道 影響因素 設(shè)計(jì) 軌跡控制

【摘要】：石油天然氣作為一種主要能源,已經(jīng)成為世界性產(chǎn)業(yè)革命的支柱。隨著對油氣需求的日益增長和勘探開發(fā)程度的不斷提高,石油鉆井所面臨的地質(zhì)環(huán)境越來越復(fù)雜。有些油氣資源埋藏于城鎮(zhèn)、沼澤、湖泊、海樣、河流、高山、森林等復(fù)雜條件,必須采用定向井進(jìn)行有效的開發(fā)。定向井技術(shù)是當(dāng)今世界石油勘探開發(fā)領(lǐng)域最先進(jìn)的鉆井技術(shù)之一,其優(yōu)越性就在于可以躍過地面上的障礙,采取斜式、水平式鉆進(jìn),直達(dá)目標(biāo)。在鉆井過程中,由特殊井下工具、測量儀器和工藝技術(shù)有效控制井眼軌跡,使鉆頭沿著特定方向鉆達(dá)地下預(yù)定目標(biāo)。這個(gè)特定方向首先應(yīng)進(jìn)行井身剖面及井眼軌跡設(shè)計(jì),井眼軌跡的質(zhì)量直接影響到定向井的質(zhì)量。本文以定向井井眼軌跡設(shè)計(jì)與控制為目標(biāo),研究了定向井井眼軌跡的設(shè)計(jì)參數(shù)及計(jì)算方法,分析了G-H1井井眼軌跡控制的影響因素。根據(jù)定向井的設(shè)計(jì)條件及設(shè)計(jì)原則,結(jié)合G-H1井的實(shí)際地層情況,設(shè)計(jì)了該井的井眼軌跡,計(jì)算了各節(jié)點(diǎn)處的參數(shù),包括井斜角、方位角、垂深、北坐標(biāo)、東坐標(biāo)、水平長度、井斜率、方位率、井眼曲率,設(shè)計(jì)了適合于G-H1定向井的井身剖面及軌道。通過計(jì)算方位轉(zhuǎn)角以及扭造斜工具裝置角實(shí)現(xiàn)了井眼軌跡的控制。研究了定向井軌跡控制工藝技術(shù),主要包括井斜控制和方位控制兩個(gè)方面,鉆井過程中的控制工藝是著陸控制和水平控制工藝。研究表明,影響定向井井眼軌跡控制的因素主要包括地層特征、下部鉆具結(jié)構(gòu)、井眼的幾何形狀以及工藝參數(shù)等等。G-H1井的井眼軌跡采用“直—增—穩(wěn)—增—增—增—增—穩(wěn)—增—降—平”的十一段式,定向井軌跡設(shè)計(jì)成“勺”型。鉆井過程中在A1點(diǎn)處增加了100~300米左右泥巖段,保證了固井質(zhì)量,減小了G-H1井油層上部水層對水平段油層的威脅。通過計(jì)算G-H1井方位轉(zhuǎn)角以及扭造斜工具裝置角,通過著陸控制和水平控制的工藝技術(shù)實(shí)現(xiàn)定向井的井斜控制和方位控制。在鉆井過程中,為了使實(shí)鉆軌跡偏離設(shè)計(jì)軌道不要太遠(yuǎn),要及時(shí)進(jìn)行測斜并采取措施進(jìn)行軌跡控制。該井實(shí)際完鉆參數(shù)與設(shè)計(jì)參數(shù)一致,實(shí)現(xiàn)了了G-H1定向井軌道控制。
[Abstract]:Petroleum and natural gas as a major energy source, has become a pillar industry of the world revolution. With the growing demand of oil and gas exploration and development and constantly improve the level of oil drilling, facing the geological environment becomes more and more complex. Some oil and gas resources are buried in the town, swamps, lakes, rivers, mountains, sea, forest and other complex conditions, the need for effective development of directional well. The directional drilling technology is one of the most advanced drilling technology in the field of oil exploration and development in the world, its superiority lies in the over ground obstacles, adopt inclined, horizontal drilling, direct target. In the process of drilling, by special downhole tools. The measurement instrument and the technology of effective control of well trajectory, the drill bit along the specific direction of the underground drilling target. This particular direction should be made well profile and well trajectory design, well trajectory Quality directly affects the quality of directional wells. Based on the directional well trajectory design and control for the target, design parameters and calculation method of directional well trajectory, analyzes the influencing factors of G-H1 well trajectory control. On the basis of the design of directional wells and design principles, combined with the actual situation of the formation of well G-H1 the design of the well trajectory of the wells, the parameters of each node are calculated, including inclination, azimuth, vertical depth, North East coordinate, coordinates, horizontal length, slope wells, range rate, hole curvature, design well profile and track for G-H1. Through the calculation of directional wells azimuth angle and torsion angle deflecting tool device realizes well trajectory control. On the control technology of directional well trajectory, including deviation control and orientation control two aspects of process control in the process of drilling is landing control and level of control technology. Yi. Research shows that the influence factors of directional well trajectory control mainly includes the formation features of BHA structure, geometry and process parameters on.G-H1 well trajectory of the wellbore by using eleven section straight - by - steady - - - increase - increase by increasing - steady - increasing drop - ping "the directional well trajectory design into the" spoon ". In the process of drilling at the A1 point increase of 100~300 meters of mudstone, ensure cementing quality, reduce the G-H1 reservoir in upper water reservoir. The level of threat by calculating G-H1 well orientation angle and torsional deflecting device through the angle of deviation control and to control the implementation of directional well technology landing control and level control. In the process of drilling, in order to make the actual drilling trajectory deviates from the designed track not too far to timely survey and take measures for trajectory control. The actual wells drilled. The number is consistent with the design parameters, and the track control of the G-H1 directional well is realized.

【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TE243
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本文編號：1394498