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| 孔隙压力变化对地应力的影响研究 | |
| 引用本文： | 梁何生,闻国峰,王桂华,张永忠,程远方,赵俊华.孔隙压力变化对地应力的影响研究[J].石油钻探技术,2004,32(2):18-20. |
| 作者姓名： | 梁何生 闻国峰 王桂华 张永忠 程远方 赵俊华 |
| 作者单位： | 1. 大港油田集团公司钻采工艺研究院,天津,大港,300280 2. 大港油田分公司油田开发事业部,天津,大港,300280 3. 石油大学(华东)石油工程学院,山东,东营,257061 |
| 摘 要： | 在开发井的生产过程中,地层孔隙压力降低的同时,地层的破裂压力也在降低,这是由地层孔隙压力的变化导致地应力,特别是两个水平主地应力产生了变化引起的.推导出了两个水平主应力随地层孔隙压力变化的理论公式和地层破裂压力、坍塌压力的预测公式,计算了大港油田马东区块开发前后的两个水平主应力、地层破裂压力、坍塌压力,证明了这些公式的可靠性. |
| 关 键 词： | 开发井 孔隙压力 地层破裂压力 井眼稳定 马东油田 |
| 文章编号： | 1001-0890(2004)02-0018-03 |
The Effects of Pore Pressure Alterations on the In-situ Stress |
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| Liang Hesheng,Wen Guofeng,Wang Guihua,Zhang Yongzhong,Cheng Yuanfang,Zhao Junhua.The Effects of Pore Pressure Alterations on the In-situ Stress[J].Petroleum Drilling Techniques,2004,32(2):18-20. | |
| Authors: | Liang Hesheng Wen Guofeng Wang Guihua Zhang Yongzhong Cheng Yuanfang Zhao Junhua |
| Affiliation: | Liang Hesheng~1,Wen Guofeng~2,Wang Guihua~3,Zhang Yongzhong~1,Cheng Yuanfang~3,Zhao Junhua~1 |
| Abstract: | During production in development wells,it is found th at the formation fracture pressure decreases with the formation pore pressure in the different hydrocarbon fracture workovers. For example:the Gangshen10- 18 Well in the Madong Oilfield have ever fracture the same formation (Banshen) t wice, On 28th,7, 1999,the wellbore bottom formation fracture pressure is 78.4MPa whil e that on 16th,6, 2000, is 73MPa. The cause is that the change of the formation pore pressure affect greatly the in-situ stress, especially the two horizontal s tresses. The problem is discussed in this paper and analysed with the insite exa mples of the Madong area in the Dagang Oilfield. |
| Keywords: | development well pore pressure formation breakdown pressure hole stabilization Madong Oilfield |
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