Method for sidetrack drilling of coiled tubing through oil pipe
The invention relates to a continuous pipe through oil pipe sidetrack drilling method which comprises the following steps that S1, when a crude oil pipe is reserved in an original shaft, a continuous pipe lower whipstock system penetrates through the crude oil pipe to lower a whipstock in the origin...
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| creator | YU XUNXING LIU PINGGUO YU DONGBING ZHANG FUQIANG LI SHUAI LIU XIXIONG |
| description | The invention relates to a continuous pipe through oil pipe sidetrack drilling method which comprises the following steps that S1, when a crude oil pipe is reserved in an original shaft, a continuous pipe lower whipstock system penetrates through the crude oil pipe to lower a whipstock in the original shaft; when the crude oil pipe is not reserved in the original shaft, a whipstock is tripped into the original shaft by using a tubing string lower whipstock system; s2, after setting of the whipstock in the original shaft is completed, when a sidetrack drilling point is located in a casing well section of the original shaft, a continuous pipe is used for being connected with a windowing tool string to conduct windowing operation on the casing well section in the original shaft, and drilling testing operation continues after windowing operation is completed; when the sidetrack drilling point of the original shaft is located in the open hole well section, a continuous pipe is connected with a windowing tool strin |
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when the crude oil pipe is not reserved in the original shaft, a whipstock is tripped into the original shaft by using a tubing string lower whipstock system; s2, after setting of the whipstock in the original shaft is completed, when a sidetrack drilling point is located in a casing well section of the original shaft, a continuous pipe is used for being connected with a windowing tool string to conduct windowing operation on the casing well section in the original shaft, and drilling testing operation continues after windowing operation is completed; when the sidetrack drilling point of the original shaft is located in the open hole well section, a continuous pipe is connected with a windowing tool strin</description><language>chi ; eng</language><subject>EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; FIXED CONSTRUCTIONS ; MINING ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230314&DB=EPODOC&CC=CN&NR=115788294A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230314&DB=EPODOC&CC=CN&NR=115788294A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YU XUNXING</creatorcontrib><creatorcontrib>LIU PINGGUO</creatorcontrib><creatorcontrib>YU DONGBING</creatorcontrib><creatorcontrib>ZHANG FUQIANG</creatorcontrib><creatorcontrib>LI SHUAI</creatorcontrib><creatorcontrib>LIU XIXIONG</creatorcontrib><title>Method for sidetrack drilling of coiled tubing through oil pipe</title><description>The invention relates to a continuous pipe through oil pipe sidetrack drilling method which comprises the following steps that S1, when a crude oil pipe is reserved in an original shaft, a continuous pipe lower whipstock system penetrates through the crude oil pipe to lower a whipstock in the original shaft; 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when the crude oil pipe is not reserved in the original shaft, a whipstock is tripped into the original shaft by using a tubing string lower whipstock system; s2, after setting of the whipstock in the original shaft is completed, when a sidetrack drilling point is located in a casing well section of the original shaft, a continuous pipe is used for being connected with a windowing tool string to conduct windowing operation on the casing well section in the original shaft, and drilling testing operation continues after windowing operation is completed; when the sidetrack drilling point of the original shaft is located in the open hole well section, a continuous pipe is connected with a windowing tool strin</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS |
| title | Method for sidetrack drilling of coiled tubing through oil pipe |
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