[1]羅健生,鄢捷年.頁巖水化對其力學性質和井壁穩定性的影響[J].石油鉆采工藝,1999,21(2):007-13.[doi:10.3969/j.issn.1000-7393.1999.02.002]
 Luo Jiansheng,Yan Jienian.MPACT OF SHALE HYDRATION ON ITS MECHANICAL PROPERTY AND BOREHOLE WALL STABILITY[J].Oil Drilling & Production Technology,1999,21(2):007-13.[doi:10.3969/j.issn.1000-7393.1999.02.002]
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頁巖水化對其力學性質和井壁穩定性的影響
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《石油鉆采工藝》[ISSN:1000-7393/CN:13-1072/TE]

卷:
21卷
期數:
1999年2期
頁碼:
007-13
欄目:
出版日期:
1999-04-20

文章信息/Info

Title:
MPACT OF SHALE HYDRATION ON ITS MECHANICAL PROPERTY AND BOREHOLE WALL STABILITY
作者:
羅健生 鄢捷年
石油大學·北京
Author(s):
Luo Jiansheng Yan Jienian
關鍵詞:
鉆井液井眼穩定頁巖抗壓強度坍塌層破裂壓力
Keywords:
drilling fluidhole stabilizationshalecompressive strengthslough formationfracturing pressure
DOI:
10.3969/j.issn.1000-7393.1999.02.002
摘要:
在對新疆油田呼圖壁地區防塌鉆井液配方進行優選的基礎上,進一步研究了鉆井液引起的水化與泥頁巖力學性質和井壁穩定性的關系。試驗和計算結果表明,泥頁巖水化后由于抗壓強度降低,粘聚力下降,因而對鉆井液安全密度窗口有顯著的影響。以呼002井泥頁巖為例,水化后坍塌壓力所對應的鉆井液密度值提高了0.23g/cm3,破裂壓力所對應的鉆井液密度值降低了0.15g/cm3。在相同的試驗條件下,泥頁巖水化程度與鉆井液類型有關。在所使用的3種防塌鉆井液中,KCI兩性離子聚磺鉆井液對泥頁巖的抑制作用為最好.
Abstract:
On the basis of optimization of antisloughing drilling fluids in Hutubi area of Xinjiang oil field, the relation between shale mechanical property and borehole wall stability and hydration caused by drilling fluid is further investigated. The result of test and calculation showed that the hydrated shale has a reduced compression strength and poor adhesive power, resulting in a significant impact on the safety window of drilling fluid density. For instance, in well Hu 002, the sloughing pressure of hydrated shale corresponded to an increase of 0.23g/cm3 in drilling fluid density and the fracture pressure corresponded to a decrease of 0.15g/cm3 in drilling fluid density. Under similar test condition, hydration of shale depends on the type of drilling fluid. In 3 type of anti——sloughing drilling fluid used in the test, the KCI amphoteric polysulfonate drilling fluid exhibits the best shale inhibiting effect.

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備注/Memo

備注/Memo:
收稿日期:1998-11-12;改回日期:。
作者簡介:羅健生,1964年生。從事井壁捻定性方面的研究,現為石油工程親油氣井工程專業研究生;都捷年,1945年生。1981年于石南石油學院開發系研究生畢業,長期從事油田化學領域的教學和補研工作。現為石油工程系教授、博士生導師。
更新日期/Last Update: 1900-01-01
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