[1]黄熠  杨进  施山山  罗鸣  殷启帅  徐东升.控压钻井技术在海上超高温高压井中的应用[J].石油钻采工艺,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]
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控压钻井技术在海上超高温高压井中的应用
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《石油钻采工艺》[ISSN:1000-7393/CN:13-1072/TE]

卷:
40卷
期数:
2018年6期
页码:
699-705
栏目:
钻井完井
出版日期:
2018-11-20

文章信息/Info

Title:
Applications of MPD technology in offshore ultra-HTHP wells
文章编号:
1000 – 7393( 2018 )06 – 0699 – 07
作者:
黄熠12  杨进1  施山山1  罗鸣2  殷启帅1  徐东升1
1. 中国石油大学(北京);2. 中海石油(中国)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
关键词:
海上超高温高压井窄压力窗口控压钻井作业设计应用实践
Keywords:
offshore ultra-HTHP well narrow pressure window managed pressure drilling operation design practical application
分类号:
TE52
DOI:
10.13639/j.odpt.2018.06.005
文献标志码:
B
摘要:
南海莺琼盆地由于地质成因复杂,具有地层温度、压力高,压力台阶多、压力窗口窄的特点,导致该区域的钻完井作业常常会出现井涌、井漏甚至是涌漏同存复杂,造成该区域部分井的作业难点多、成本居高不下。而控压钻井能够精确控制井底当量密度,降低窄压力窗口井控、井漏风险,从而实现安全高效钻进,并且陆地高温高压控压钻井技术已在塔里木、四川等多个区块进行了应用,形成了一套成熟的技术体系。结合海上超高温高压X1 井的实际情况,对海上超高温高压控压钻井从井底ECD、施工参数、应急井控3 个方面进行作业设计分析。应用实践表明,该系统可通过控制回压的方式在海上高温高压井进行井筒动态承压试验、起钻、接单根作业,并可以精确监测井下溢流、井漏复杂,使得高温高压钻井风险降低、作业成本减少,为该系统在海上高温高压区块及深水高温高压区块的推广应用提供了借鉴。
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