发明名称 |
MULTIHOLE WELL CONSTRUCTION METHOD |
摘要 |
FIELD: oil and gas industry. ^ SUBSTANCE: invention includes main hole drilling, lowering and attachment of casing string and shank with openings for branch holes and lowering of assembly of drilling string bottom. At that well equipment is provided with electromagnetic system of oriented entry of drilling tool and shanks of small diameter into branch holes. Electromagnetic channel of communication with wellhead is formed, and, according to obtained data about installation angle of downhole motor diverter, diverter is installed in specified directional attitude for oriented entry in shank opening and for drilling from horizontal shaft shank opening. After drilling also oriented lowering of shank of smaller diameter with end curved to specified angle is performed. After drilling out and attachment of all the planned branch holes, lowering of tubing with self-contained well instruments arranged on tubing is performed. Well instruments provide measurement and transfer of bottom-hole data to the surface. ^ EFFECT: improving reliability and simplifying procedure of multihole well construction, also providing accurate relative orientation of main and branch holes. ^ 5 dwg |
申请公布号 |
RU2451150(C1) |
申请公布日期 |
2012.05.20 |
申请号 |
RU20100146341 |
申请日期 |
2010.11.13 |
申请人 |
GOSUDARSTVENNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA ROSSIJSKIJ GOSUDARSTVENNYJ UNIVERSITET NEFTI I GAZA IMENI I.M. GUBKINA |
发明人 |
KUL'CHITSKIJ VALERIJ VLADIMIROVICH;ARKHIPOV ALEKSEJ IGOREVICH;LARIONOV ANDREJ SERGEEVICH;SHCHEBETOV ALEKSEJ VALER'EVICH |
分类号 |
E21B7/08;E21B43/10;E21B47/02 |
主分类号 |
E21B7/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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