FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2109645361> ?p ?o ?g. }

• W2109645361 endingPage "29" @default.
• W2109645361 startingPage "26" @default.
• W2109645361 abstract "Technology Update A new method is now in use to reduce the risk and increase efficiency when drilling difficult formations. The antistall tool makes it possible to drill highly mixed and laminated formations with less risk of severe vibrations and downhole equipment failures. By reducing vibrations, the tool simultaneously improves the rate of penetration (ROP). Drill bit-induced vibrations that occur during rapid transitions in subsurface formations are hard to predict and therefore equally hard to avoid through the preselection of bits and drilling parameters. The antistall technology is based on a dynamic, self-supported downhole mechanical system that actively controls the bit’s depth of cut (DOC) by manipulating the weight on bit (WOB). The system uses the rotary torque as an input control parameter to actively counteract the torsional peak loads and stalls that are common through sharp transitions and contrasts in the underground. Because of its relatively simple functional principle, the method has proved highly versatile. It is capable of reducing vibrations in a wide range of applications that, in addition to regular rotary drilling, includes reaming and through-tubing milling (Dagestad et al. 2006). Continuous Prevention of Bit Stalling Because it is part of the lower bottomhole assembly (BHA), the antistall tool can quickly and continuously prevent the bit from stalling and thereby limit the development of severe stick-slip vibrations. The mechanical function of the downhole tool is based on converting the rise in the drilling torque that precedes a stall into an axial contraction that will immediately cut back the WOB. The fast reduction of weight on the bit reduces the DOC sufficiently to keep the bit rotating. The conversion to the axial contraction takes place through an internal helix and appears as a reduction in the length of the polished, telescopic section seen in Fig. 1. With the contraction, a strong spring and absorber is simultaneously compressed internally in the tool body above the telescopic section. The energy absorbed in the spring is fed back through the system to maintain a steady torsional load. This capability of absorbing and releasing energy makes the system work continuously and with no need for reset. Fig. 2 shows a downhole recording of torsional (stick-slip) vibrations in a 17½-in. hole where the antistall tool was run in at 2567 m to improve drilling, after an unexpected, difficult formation had caused several bit trips. Except for the antistall tool and a new bit, the BHA was practically identical throughout, and the data showed how the stick-slip vibrations were reduced and the reduction was achieved without much manipulation of surface parameters. The actual stroke needed to keep the bit rotating is a fraction of the telescopic capacity. The purpose of the extensive capacity is to provide the desired antistall effect with a wide range of loads and without the need for specific configurations or time spent on changing surface parameters. Because of its flexibility and ease of operation, antistall technology does not require any service personnel in the field." @default.
• W2109645361 created "2016-06-24" @default.
• W2109645361 creator A5069856984 @default.
• W2109645361 date "2012-01-01" @default.
• W2109645361 modified "2023-10-16" @default.
• W2109645361 title "Antistall Tool Reduces Risk in Drilling Difficult Formations" @default.
• W2109645361 cites W2045583724 @default.
• W2109645361 cites W2124540180 @default.
• W2109645361 doi "https://doi.org/10.2118/0112-0026-jpt" @default.
• W2109645361 hasPublicationYear "2012" @default.
• W2109645361 type Work @default.
• W2109645361 sameAs 2109645361 @default.
• W2109645361 citedByCount "8" @default.
• W2109645361 countsByYear W21096453612012 @default.
• W2109645361 countsByYear W21096453612016 @default.
• W2109645361 countsByYear W21096453612019 @default.
• W2109645361 countsByYear W21096453612021 @default.
• W2109645361 countsByYear W21096453612023 @default.
• W2109645361 crossrefType "journal-article" @default.
• W2109645361 hasAuthorship W2109645361A5069856984 @default.
• W2109645361 hasConcept C117011727 @default.
• W2109645361 hasConcept C121332964 @default.
• W2109645361 hasConcept C127413603 @default.
• W2109645361 hasConcept C144171764 @default.
• W2109645361 hasConcept C152068911 @default.
• W2109645361 hasConcept C173736775 @default.
• W2109645361 hasConcept C198394728 @default.
• W2109645361 hasConcept C24890656 @default.
• W2109645361 hasConcept C25197100 @default.
• W2109645361 hasConcept C2776088076 @default.
• W2109645361 hasConcept C2776497017 @default.
• W2109645361 hasConcept C2778382975 @default.
• W2109645361 hasConcept C38652104 @default.
• W2109645361 hasConcept C41008148 @default.
• W2109645361 hasConcept C78519656 @default.
• W2109645361 hasConcept C78762247 @default.
• W2109645361 hasConcept C97355855 @default.
• W2109645361 hasConceptScore W2109645361C117011727 @default.
• W2109645361 hasConceptScore W2109645361C121332964 @default.
• W2109645361 hasConceptScore W2109645361C127413603 @default.
• W2109645361 hasConceptScore W2109645361C144171764 @default.
• W2109645361 hasConceptScore W2109645361C152068911 @default.
• W2109645361 hasConceptScore W2109645361C173736775 @default.
• W2109645361 hasConceptScore W2109645361C198394728 @default.
• W2109645361 hasConceptScore W2109645361C24890656 @default.
• W2109645361 hasConceptScore W2109645361C25197100 @default.
• W2109645361 hasConceptScore W2109645361C2776088076 @default.
• W2109645361 hasConceptScore W2109645361C2776497017 @default.
• W2109645361 hasConceptScore W2109645361C2778382975 @default.
• W2109645361 hasConceptScore W2109645361C38652104 @default.
• W2109645361 hasConceptScore W2109645361C41008148 @default.
• W2109645361 hasConceptScore W2109645361C78519656 @default.
• W2109645361 hasConceptScore W2109645361C78762247 @default.
• W2109645361 hasConceptScore W2109645361C97355855 @default.
• W2109645361 hasIssue "01" @default.
• W2109645361 hasLocation W21096453611 @default.
• W2109645361 hasOpenAccess W2109645361 @default.
• W2109645361 hasPrimaryLocation W21096453611 @default.
• W2109645361 hasRelatedWork W176206409 @default.
• W2109645361 hasRelatedWork W2025610623 @default.
• W2109645361 hasRelatedWork W2109645361 @default.
• W2109645361 hasRelatedWork W2353328928 @default.
• W2109645361 hasRelatedWork W2374487331 @default.
• W2109645361 hasRelatedWork W2442234366 @default.
• W2109645361 hasRelatedWork W2944070671 @default.
• W2109645361 hasRelatedWork W3034477764 @default.
• W2109645361 hasRelatedWork W4297916299 @default.
• W2109645361 hasRelatedWork W4308987299 @default.
• W2109645361 hasVolume "64" @default.
• W2109645361 isParatext "false" @default.
• W2109645361 isRetracted "false" @default.
• W2109645361 magId "2109645361" @default.
• W2109645361 workType "article" @default.