【摘要】：伊通地區(qū)具有儲層埋藏深、目的層可鉆性差、地層傾角大、儲層敏感性強等特點,在鉆井過程中一方面會制約鉆井速度,另一方面還會影響井眼軌跡的準確性。PDC鉆頭+螺桿鉆具的復合鉆井技術(shù)不僅能夠適應(yīng)高轉(zhuǎn)速的特點,使鉆頭轉(zhuǎn)速大幅度提高,大大提高了鉆速,還能用于防斜、糾斜、增斜及穩(wěn)斜等方面,達到精確控制井眼軌跡的目的。因此,伊通地區(qū)在鉆井過程中出現(xiàn)的問題可以采用復合鉆井技術(shù)進行解決,滿足該地區(qū)油田生產(chǎn)的需要。根據(jù)研究目的,本文共有4部分內(nèi)容。第一部分:開展了伊通地區(qū)地質(zhì)條件的研究,鉆井工程受地質(zhì)條件及巖石性質(zhì)影響較大,因此該部分主要包括基本地質(zhì)概況、區(qū)域內(nèi)巖石粒度特征及巖石礦物成分特征;第二部分:開展了伊通地區(qū)PDC鉆頭和螺桿鉆具的優(yōu)選工作,主要包括伊通地區(qū)PDC鉆頭優(yōu)選方法研究和伊通地區(qū)螺桿鉆具優(yōu)選評價方法研究;第三部分:開展了井眼軌跡精確控制技術(shù)研究,由于直井段與定向井段井眼控制技術(shù)存在較大的差別,因此分別開展了直井段及定向井段井眼軌跡控制技術(shù);第四部分:復合鉆井技術(shù)在伊通地區(qū)的實用性研究。通過本文研究,優(yōu)選出了適用于伊通地區(qū)的復合鉆井鉆具組合,既提高了鉆井速度又解決了井眼軌跡控制不精確的問題;根據(jù)伊通地區(qū)巖石的力學性能和已鉆鉆頭資料,優(yōu)選出了適合伊通地區(qū)的PDC鉆頭;針對直井段井眼軌跡控制技術(shù),提出了單彎螺桿鉆具組合防斜打快這一技術(shù);根據(jù)定向井段井眼軌跡控制基本原則,結(jié)合伊通地區(qū)地層的巖性的垂向特征,設(shè)計出適合各井段的鉆具組合。在伊通地區(qū)適用性研究中發(fā)現(xiàn),復合鉆井技術(shù)在該區(qū)塊取得了明顯的效果,實現(xiàn)了快速精準鉆井的目的。
[Abstract]:The Yitong area is characterized by deep reservoir burial, poor drillability of the target layer, large dip angle and strong reservoir sensitivity. On the one hand, the drilling speed will be restricted in the drilling process. On the other hand, it will affect the accuracy of borehole trajectory. The compound drilling technology of PDC bit screw drilling tool can not only adapt to the characteristics of high rotational speed, but also improve the drilling speed greatly, and can also be used to prevent deviation and correct deviation. In order to control the trajectory of borehole accurately, the angle increasing and stabilization are achieved. Therefore, the problems in the drilling process in Yitong area can be solved by using compound drilling technology to meet the needs of oilfield production in Yitong area. According to the purpose of the research, there are four parts in this paper. The first part is the research of geological conditions in Yitong area. The drilling engineering is greatly affected by geological conditions and rock properties, so this part mainly includes the basic geological situation, the characteristics of rock granularity and rock mineral composition in the area. The second part: the optimization of PDC bit and screw drill tool in Yitong area is carried out, including the research of PDC bit selection method in Yitong area and the evaluation method of screw drill tool selection in Yitong area. The third part: the research of borehole trajectory control technology is carried out. Due to the big difference between the vertical and directional well trajectory control technology, the vertical and directional well trajectory control technology is developed respectively. The fourth part: the practicability research of compound drilling technology in Yitong area. Through the research in this paper, the combination of drilling tools suitable for Yitong area is selected, which not only improves the drilling speed but also solves the problem of inaccuracy of hole trajectory control. According to the rock mechanical properties of Yitong area and the data of drill bit, the PDC bit suitable for Yitong area is selected, and aiming at the control technology of borehole trajectory in straight well section, the technology of single bend screw drilling tool combination to prevent deviation and beat fast is put forward. According to the basic principle of hole trajectory control in directional well section and the vertical characteristics of formation lithology in Yitong area, the drilling tool combination suitable for each section is designed. In the study of applicability of Yitong area, it is found that compound drilling technology has achieved obvious results in this area and achieved the goal of rapid and accurate drilling.
【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】：TE242

【參考文獻】

相關(guān)期刊論文 前2條

1 李萌;于興勝;羅西超;黃衍福;劉鳳;王宇鵬;;螺桿鉆具的前沿技術(shù)[J];石油機械;2011年09期

2 董國昌,龐曉東,孫博;英臺地區(qū)PDC鉆頭優(yōu)選與應(yīng)用[J];西部探礦工程;2003年09期

，

本文編號：2399038