Research and Application of Fast and Efficient Bifurcation
Technology of Dual Casing

doi:10.11885/j.issn.1674-5086.2012.12.18.01

Abstract

Abstract:

Aiming to solve problems like difficulty in low efficiency in opening the window and ill adaptability of conventional
sidetracking tools，we developed a new type of fast and efficient bifurcation and pilot type sidetracking tools，using“hard to
hard”design idea，an implementing new technologies of dual-angle superhard compound bevel guide，double cutting edge and
strong lateral cutting ability of sidetracking bit，and triplex-cylinder linkage pressurized and non-cyclical packer. In the cutting
process，greatly reduced the extent of damage to whipstock，enhanced the adaptability and reliability of intermittent cutting
conditions caused by the asymmetry，non-stability and the form-randomness，effectively improved the bifurcation angle，and
applied it to be successful in the Wen25Ce61 well. At the same time，the window formation mechanism of the dual cased hole
was done，and static and dynamic simulation were made. On this basis，further we elaborated technical methods to achieve
efficient dual casing sidetrack. This research is hoped to have great significance to the future development of the sidetrack
market.

Key words: dual casing, sidetracking, fast bifurcation, tool engineering, simulation calculate

Zhang Derong, Kong Chunyan*, Feng Wenrong, Zhong Lin. Research and Application of Fast and Efficient Bifurcation
Technology of Dual Casing[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2012.12.18.01.

0
/ / Recommend

Add to citation manager EndNote|Ris|BibTeX

URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2012.12.18.01

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2015/V37/I1/159

References

[1] 冯文荣，张德荣. 小井眼侧钻关键技术[J]. 西部探矿工

程，2008（11）：82– 84.

[2] 王龙，李雪梅，赵耀先. 双层套管开窗技术的探讨与应

用[J]. 石油钻采工艺，2003，25（4）：39– 40.

[3] 袁小波，刘易思，陈怀高. 魏城2– 1 井双层高强度套管

开窗工艺技术[J]. 钻采工艺，2003，26（5）：9 –10.

Yuan Xiaobo，Liu Yisi，Chen Huaigao. The technology

of casing windows in two story high strength casings in

well Weicheng 2– 1[J]. Drilling & Production Technology，

2003，26（5）：9– 10.

[4] 李群山，靳树忠，王丽娟，等. 双层套管开窗侧钻水平

井钻井技术[J]. 石油钻探技术，2001，29（2）：26–27.

[5] 黄立新. DK68C 井双层套管开窗施工工艺[J]. 钻采工

艺，2002，25（2）：14–16.

Huang Lixin. Technology of bilayer casing windows in the

well DK68C[J]. Drilling & Production Technology，2002，

25（2）：14– 16.

[6] Stokley C O D，Seale R. Development of an open hole

sidetracking system[C]. SPE 59201，2000.

[7] Broussard A N，Templeton G W，Travis D. Whipstockand-

inflatable packer combination decreases openhole

sidetracking costs in central arkansas[C]. SPE 123577，

2009.

[8] Campbell J M，Gregurek P，Swadi S，et al. New tools and

procedures increase reliability of openhole sidetrack operations[

C]. SPE 148904，2011.

[9] Childers，R D，Miller G C. PCD technology advances

sidetracking capabilities[C]. SPE 59185，2000.

[10] 闫友勇，雷宇，屈志平，等. 双层套管开窗关键技术应

用[J]. 石油钻采工艺，2012，34（3）：115– 118.

Yan Youyong，Lei Yu，Qu Zhiping，et al. Application of

dual casing sidetracking technique[J]. Oil Drilling & Production

Technology，2012，34（3）：115– 118.

[11] Khalid N，Omar A AI-Faraj，Naser A A，et al. Open hole

sidetrack：A transformation in drilling dual lateral khuff

reservoir gas wells in the kingdom of saudi arabia[C].

SPE 126055，2009.

[12] 鲁港. 限定井眼方向待钻轨道设计的代数法[J]. 西南石

油大学学报：自然科学版，2009，31（5）：158– 162.

Lu Gang. An algebraic method of borehole trajectory design

with defined borehole direction[J]. Journal of Southwest

Petroleum University：Science & Technology Edition，

2009，31（5）：158 –162.

[13] 张德荣，孔春岩，刘春林. 双层套管开窗工艺设计[J].

钻采工艺，2013，36（2）：30– 33.

Zhang Derong，Kong Chunyan，Liu Chunlin. Research on

dual casing sidetracking technology[J]. Drilling & Production

Technology，2013，36（2）：30–33.

[14] 于天忠，喻晨，叶双江，等. 辽河油田双底鱼骨井设

计与实施[J]. 西南石油大学学报：自然科学版，2011，

33（1）：135–138.

Yu Tianzhong，Yu Chen，Ye Shuangjiang，et al. Design

and implementation of two-bottom herringbone well in

LIAOHE Oilfield[J]. Journal of Southwest Petroleum University：

Science & Technology Edition，2011，33（1）：

135– 138.