[1]黃熠  楊進  施山山  羅鳴  殷啟帥  徐東升.控壓鉆井技術在海上超高溫高壓井中的應用[J].石油鉆采工藝,2018,40(6):699-705.[doi:10.13639/j.odpt.2018.06.005]
 HUANG Yi,YANG Jin,et al.Applications of MPD technology in offshore ultra-HTHP wells[J].Oil Drilling & Production Technology,2018,40(6):699-705.[doi:10.13639/j.odpt.2018.06.005]
點擊復制

控壓鉆井技術在海上超高溫高壓井中的應用
分享到:

《石油鉆采工藝》[ISSN:1000-7393/CN:13-1072/TE]

卷:
40卷
期數:
2018年6期
頁碼:
699-705
欄目:
鉆井完井
出版日期:
2018-11-20

文章信息/Info

Title:
Applications of MPD technology in offshore ultra-HTHP wells
文章編號:
1000 – 7393( 2018 )06 – 0699 – 07
作者:
黃熠12  楊進1  施山山1  羅鳴2  殷啟帥1  徐東升1
1. 中國石油大學(北京);2. 中海石油(中國)有限公司湛江分公司
Author(s):
HUANG Yi1 2 YANG Jin1 SHI Shanshan1 LUO Ming2 YIN Qishuai1 XU Dongsheng1
1. China University of Petroleum (Beijing), Beijing 102249, China; 2. CNOOC China Limited Zhanjiang Branch, Zhanjiang 524057, Guangdong, China
關鍵詞:
海上超高溫高壓井窄壓力窗口控壓鉆井作業設計應用實踐
Keywords:
offshore ultra-HTHP well narrow pressure window managed pressure drilling operation design practical application
分類號:
TE52
DOI:
10.13639/j.odpt.2018.06.005
文獻標志碼:
B
摘要:
南海鶯瓊盆地由于地質成因復雜,具有地層溫度、壓力高,壓力臺階多、壓力窗口窄的特點,導致該區域的鉆完井作業常常會出現井涌、井漏甚至是涌漏同存復雜,造成該區域部分井的作業難點多、成本居高不下。而控壓鉆井能夠精確控制井底當量密度,降低窄壓力窗口井控、井漏風險,從而實現安全高效鉆進,并且陸地高溫高壓控壓鉆井技術已在塔里木、四川等多個區塊進行了應用,形成了一套成熟的技術體系。結合海上超高溫高壓X1 井的實際情況,對海上超高溫高壓控壓鉆井從井底ECD、施工參數、應急井控3 個方面進行作業設計分析。應用實踐表明,該系統可通過控制回壓的方式在海上高溫高壓井進行井筒動態承壓試驗、起鉆、接單根作業,并可以精確監測井下溢流、井漏復雜,使得高溫高壓鉆井風險降低、作業成本減少,為該系統在海上高溫高壓區塊及深水高溫高壓區塊的推廣應用提供了借鑒。
Abstract:
Due to complex geological origins, the Yingqiong Basin of South China Sea is characterized by high formation temperature, high formation pressure, many pressure steps and narrow pressure window, which often lead to complex accidents in the process of drilling and completion in this area, such as kick, leakage and even the coexistence of kick and leakage. As a result, some wells in this area are faced with many operation difficulties and the costs are always high. Managed pressure drilling (MPD) can accurately control the bottom hole equivalent circulating density (ECD) and reduce the risk of well control and lost circulation in narrow pressure window formation so as to ensure the safe and efficient drilling. The MPD technology for onshore high temperature and high pressure (HTHP) wells has already been applied in many blocks (e.g. Tarim and Sichuan) and a set of mature technical system has been formed. In this paper, based on the actual situations of offshore ultra-HTHP well X1, the operation design of offshore ultra-HTHP MPD was analyzed from three aspects, i.e., bottom hole ECD, operation parameters and emergency well control. Practical application shows that the system can be used to conduct wellbore dynamic pressure test, pull out of hole (POOH) and connect strings in offshore HTHP wells by controlling back pressure, and can accurately monitor the overflow and lost circulation accidents, so as to reduce the risk and operating costs of HTHP drilling. The research results provide the reference for the popularization and application of this technical system in offshore HPHT blocks and deepwater HTHP blocks.
更新日期/Last Update: 2019-04-10
彩票126走势图首页