BA油田叢式水平井鉆井工藝技術研究與應用
發(fā)布時間:2018-05-08 02:19
本文選題:叢式平臺水平井 + BA油田 ; 參考:《東北石油大學》2015年碩士論文
【摘要】:隨著石油鉆井技術的發(fā)展,水平井鉆井技術已經(jīng)成為當今石油工業(yè)一項比較成熟的技術,并被廣泛應用于油田開發(fā)建設。將水平井技術同叢式井技術相結合,可以綜合兩大鉆井技術的優(yōu)勢,增加油藏開發(fā)面積,減少地面井場建設占地,方便采油集輸管理。BA油田石油儲量豐富,是世界幾大原油輸出地區(qū)之一。該油田項目也是中石油在海外幾個比較大的項目之一。該地區(qū)大部分為三維叢式水平井,具有以下施工難點:地層復雜,可鉆性差;壓力關系復雜,泥漿密度窗口窄;直井段防碰問題突出,軌跡控制難度大等。本文通過對BA油田三維叢式水平井工藝技術的研究與應用,針對三維叢式水平井軌跡控制難度大、施工地區(qū)地質條件復雜和機械鉆速慢等技術難題,開展了井身剖面優(yōu)化設計與三維軌跡精確控制、MWD和LWD儀器運用與改進和鉆井技術等方面技術攻關,在三維叢式水平井井身軌跡控制、減少井下復雜情況和平臺叢式水平井安全技術等方面取得了一定突破,取得了良好的科研技術實踐效果和經(jīng)濟與社會效益,達到了三維叢式水平井技術國際水平。本文研究內(nèi)容旨在總結三維叢式水平井技術經(jīng)驗,為在該地區(qū),乃至其他國家和地區(qū)應用該技術,形成技術模板,作為國內(nèi)一項比較成熟的鉆井技術應用于石油鉆井行業(yè)。該項課題的研究,實現(xiàn)了平臺叢式水平井在BA油田首次成功應用;形成了一套三維橫向大跨度水平井井眼軌跡精確控制技術;實現(xiàn)了平臺叢式水平井安全鉆井,鉆井周期縮短10%以上,形成了技術模版。本文研究過程與整個BA定向井項目基本同步,目前已完成該項目一期工作量,順利完成了全部39口井的施工,為其他項目開發(fā)提供了參考資料和技術模版。該技術必將在該地區(qū)其他項目中規(guī)模推廣應用。三維叢式水平井技術成功應用,也使中國定向井品牌在該地區(qū)乃至整個海外定向井服務市場更加響亮。
[Abstract]:With the development of petroleum drilling technology, horizontal well drilling technology has become a relatively mature technology in petroleum industry, and has been widely used in oilfield development and construction. Combining horizontal well technology with cluster well technology can integrate the advantages of two drilling technologies, increase reservoir development area, reduce ground site construction, and facilitate oil recovery management. BA oilfield is rich in oil reserves. It is one of the major crude oil export regions in the world. The oil field project is also one of PetroChina's several relatively large overseas projects. Most of the wells in this area are three dimensional cluster horizontal wells, which have the following difficulties: complex formation, poor drillability, complicated pressure relation, narrow mud density window, prominent collision prevention problem in the straight well section, difficult trajectory control and so on. In this paper, through the research and application of 3D bunching horizontal well technology in BA oilfield, aiming at the technical problems such as difficult trajectory control, complex geological conditions and slow drilling speed in the construction area, etc. The optimization design of wellbore profile and the accurate control of 3D trajectory have been carried out. The application and improvement of MWD and LWD instruments and drilling technology have been carried out. Some breakthroughs have been made in reducing downhole complex situation and safety technology of platform cluster horizontal well, and good scientific and technical practical results, economic and social benefits have been obtained, and the international level of three-dimensional cluster horizontal well technology has been achieved. The purpose of this paper is to summarize the technical experience of three-dimensional bundled horizontal wells, to form a technical template for the application of the technology in this area, and even in other countries and regions, and to apply it to the petroleum drilling industry as a relatively mature drilling technology in China. The research of this subject has realized the first successful application of platform cluster horizontal well in BA oilfield, formed a set of 3D horizontal well trajectory control technology with large horizontal span, and realized the safe drilling of platform bundle horizontal well. Drilling cycle shortened by more than 10%, forming a technical template. The research process of this paper is basically synchronized with the whole BA directional well project. At present, the first phase of the project has been completed and the construction of all 39 wells has been successfully completed, which provides reference materials and technical templates for the development of other projects. This technology will certainly be used in other projects in the region on a large scale. The successful application of 3D cluster horizontal well technology also makes the Chinese directional well brand more resounding in this area and even the whole overseas directional well service market.
【學位授予單位】:東北石油大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:TE243
【參考文獻】
相關期刊論文 前1條
1 唐雪平,蘇義腦,陳祖錫;三維井眼軌道設計模型及應用[J];數(shù)學的實踐與認識;2004年03期
,本文編號:1859523
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