地层压力随钻监测方法在深水高温高压井中的研究与应用

李中; 张祯祥; 杨进; 黄熠; 李炎军; 李文拓; 吴江

doi:10.3799/dqkx.2019.049

地层压力随钻监测方法在深水高温高压井中的研究与应用

doi: 10.3799/dqkx.2019.049

李中^1,,
张祯祥^2, ,,
杨进²,
黄熠¹,
李炎军¹,
李文拓¹,
吴江¹

1.
中海石油(中国)有限公司湛江分公司, 广东湛江 524057
2.
中国石油大学石油工程学院, 北京 102249

基金项目:

“十三五”国家科技重大专项“莺琼盆地高温高压天然气富集规律与勘探开发关键技术（三期） 2016ZX05024-005

“莺琼盆地高温高压钻井关键技术研究” CNOOC-KJ135ZDXM24LTDZJ01

“莺琼盆地高温高压完井和测试关键技术研究” CNOOC-KJ135ZDXM24LTDZJ03

详细信息

作者简介:
李中(1972-), 男, 教授级高级工程师, 主要从事海洋油气钻完井的研究和管理工作

通讯作者:
张祯祥

中图分类号: P553
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- 被引次数: 0
出版历程
- 收稿日期: 2019-01-22
- 刊出日期: 2019-08-15

Research and Application of Formation Pressure Monitoring While Drilling in Deepwater with High Temperature and High Pressure

1.
Zhanjiang Branch of China National Offshore Oil Corporation Ltd., Zhanjiang 524057, China
2.
College of Petroleum Engineering, China University of Petroleum, Beijing 102249, China

摘要

摘要: 随着深水高温高压油气勘探的逐步深入，目前钻遇地层普遍存在着储层系统多样、压力系统复杂且高低压相间的情况，钻井过程中井下复杂情况频发，严重影响钻井作业安全.结合深水高温高压X1井的钻井实例，分别使用d_C指数法和岩石强度法开展地层压力随钻监测工作.结果表明，岩石强度法对深水高温高压井的压力监测精度更高，可以为后续深水高温高压井的地层压力监测工作提供参考.
- 深水高温高压 /
- 地层压力 /
- 随钻监测 /
- 岩石强度法 /
Abstract: With the deepening exploration of oil and gas in deepwater with high temperature and high pressure conditions,there are various reservoir systems,which are complex and interlaced. Downhole complications occur frequently in the drilling process,which seriously affects the drilling safety.In this paper,combined the drilling example of deepwater with high temperature and high pressure well X1,d_C index method and rock strength method are used to monitor formation pressure while drilling.The results show that the rock strength method is more accurate for pressure monitoring of deepwater with high temperature and high pressure wells,and it can provide a reference for subsequent monitoring of formation pressure in deepwater with high temperature and high pressure wells.
- deepwater /
- high temperature and high pressure /
- formation pressure /
- monitoring while drilling /
- rock strength method

HTML全文

图 1 井底压差与岩石抗钻强度关系

Fig. 1. Relation diagram between bottom-hole pressure difference and rock strength

下载: 全尺寸图片幻灯片

图 2 X1井两种方法监测结果对比

Fig. 2. Comparison diagram of two monitoring methods in well X1

下载: 全尺寸图片幻灯片

表 1 岩石强度法、d_C指数法监测地层孔隙压力梯度值与实测值对比表

Table 1. Comparison table of pore pressure values monitored by rock strength method and d_C index method

井号	井深(m)	实测压力梯度当量密度（g/cm³）	岩石强度法		d_C指数法
井号	井深(m)	实测压力梯度当量密度（g/cm³）	压力梯度（g/cm³）	误差（%）	压力梯度（g/cm³）	误差（%）
X1	3 065	1.66	1.58	4.8	1.51	9.0
	3 987	2.17	2.25	4.7	2.02	6.9
	4 023	2.20	2.12	3.6	1.86	5.5
	4 057	2.20	2.21	0.5	2.04	7.3
	4 098	2.25	2.23	0.9	2.06	8.5

下载: 导出CSV

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