--> Drilling and Completion Technologies of Extended-Reach Wells in the Artificial Island of the Jidong Oilfield
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Petroleum Previous HitDrillingNext Hit Techniques, Issue 4, 2018

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Previous HitDrillingNext Hit and Completion Technologies of Extended-Reach Wells in the Artificial Island of the Jidong Oilfield

WANG Bo1, WANG Xu2, XING Zhiqian1, YUAN Zongling1, LI Shijie1


1No.5 Previous HitDrillingNext Hit Engineering Branch Company, CNPC Bohai Previous HitDrillingNext Hit Engineering Company Limited, Hejian, Hebei, 062465, China;
2No.1 Mud Logging Branch Company, CNPC Bohai Previous HitDrillingNext Hit Engineering Company Limited, Tianjin, 300280, China


– Petroleum Previous HitDrillingNext Hit Techniques, Issue 4, 2018,

Posted: January 29, 2019

Abstract

Extended-reach well Previous HitdrillingNext Hit has numerous Previous HitproblemsNext Hit in the artificial island of the Jidong Oilfield. They include high levels of friction torque, poor sand transport, frequent wellbore collapse in the basalt section of Guantao formation, and the mudstone section of Shahejie formation, circulation lost through fractures and faults, back pressure in directional Previous HitdrillingNext Hit of deep section, and difficulty in safely completing RIH casing safely. To determine solutions for the Previous HitproblemsNext Hit, a study of Previous HitdrillingNext Hit/completion technologies of extended-reach wells in the artificial island of Jidong Oilfield was carried out. Landmark software was used to analyze wellbore trajectory, Previous HitdrillingNext Hit parameters, wellbore cleaning, friction drag, torque, Previous HitdrillingNext Hit tools, and casing RIH safety data. Previous HitDrillingNext Hit fluid flowrate, Previous HitdrillingNext Hit fluid rheology, and the relationship between the installation position of cuttings bed breaker and the cuttings bed were investigated. In addition, the solutions to back pressure in directional Previous HitdrillingNext Hit, lost circulation and wellbore collapse by integrated application of KCl film-blocking Previous HitdrillingNext Hit fluid together with new lubrication, anti-collapse, plugging agents, as well as the installation position and method of friction/torque reducing coupling were studied. Through those studies and investigations, Previous HitproblemsNext Hit have been solved, and new technologies have been developed for equipment matching, software prediction and optimization, lubrication and anti-collapse sealing Previous HitdrillingNext Hit fluid, wellbore cleaning, friction and torsion reduction, cuttings bed damage, and casing RIH safety. The Previous HitdrillingNext Hit and completion performance in 15 extended-reach wells in the artificial island of Jidong Oilfield showed that the Previous HitdrillingNext Hit/completion period is significantly reduced, and the downhole Previous HitproblemsNext Hit and complex conditions are effectively controlled. The maximum well depth is up to 6 387. 00 m and the horizontal displacement reaches 4 940. 99 m. The results demonstrated that the application of Previous HitdrillingNext Hit and completion technologies of extended-reach wells in the artificial island of Jidong Oilfield have been supporting safe and efficient development of the oil reservoir accessed through the artificial. These technologies would have good prospects for application in other situations in the near future.

AAPG Datapages/Search and Discovery Article #130003© Petroleum Previous HitDrillingTop Techniques, Issue 4, 2018