{"schemaVersion":"ready-scan.discovery-surface.v1","id":"urn:readyscan:corpus:buyer-question:ironstone-drilling-supply-q140677589-answer-a4056f65a4f9123232f5","key":"buyer_question:ironstone-drilling-supply-q140677589-answer-a4056f65a4f9123232f5","kind":"buyer_question","slug":"ironstone-drilling-supply-q140677589-answer-a4056f65a4f9123232f5","canonicalUrl":"https://readyscan.ai/corpus/buyer-question/ironstone-drilling-supply-q140677589-answer-a4056f65a4f9123232f5","machineUrl":"https://readyscan.ai/discovery/corpus/buyer-question/ironstone-drilling-supply-q140677589-answer-a4056f65a4f9123232f5.json","datePublished":"2026-10-18","dateModified":"2026-10-18","materialFingerprint":"fnv1a64:7ff25c8185d78871","membershipFingerprint":"fnv1a64:c3778f94a1c30d5c","relatedEntitySlugs":["ironstone-drilling-supply-q140677589"],"relatedSurfaceKeys":["buyer_question:ironstone-drilling-supply-q140677589-answer-008a768048f73f84a0d8","buyer_question:ironstone-drilling-supply-q140677589-answer-0577d301903891ebdfa7","buyer_question:ironstone-drilling-supply-q140677589-answer-0df468e3e624bd4315ef","buyer_question:ironstone-drilling-supply-q140677589-answer-223ceeab55d9c877e3aa","buyer_question:ironstone-drilling-supply-q140677589-answer-3b1fd9cfeea4a9eb46d4","buyer_question:ironstone-drilling-supply-q140677589-answer-6b485d7a934290ae41d9","buyer_question:ironstone-drilling-supply-q140677589-answer-739dacdf8e70425fac2e","buyer_question:ironstone-drilling-supply-q140677589-answer-8f7b469427f39278fe85","buyer_question:ironstone-drilling-supply-q140677589-answer-a071bf67395f58c1be0e","buyer_question:ironstone-drilling-supply-q140677589-answer-d63dad628e47bc92d0fc","buyer_question:ironstone-drilling-supply-q140677589-answer-e44f15ce96857731090f","buyer_question:ironstone-drilling-supply-q140677589-answer-edf3a7a4b1acc00bf442","buyer_question:ironstone-drilling-supply-q140677589-answer-efcfd6104eac515e4118","buyer_question:ironstone-drilling-supply-q140677589-answer-f4ab5f846e11fc331f0a","evidence:ironstone-drilling-supply-q140677589","relationship:ironstone-drilling-supply-q140677589-products-and-services"],"sourceIds":["ready-scan-subjects"],"provenance":[{"snapshotId":"ironstone-drilling-supply-q140677589-content-531b6faf6d0c47d4-snapshot","sourceId":"ready-scan-subjects","sourceRecordId":"Q140677589","sourceRevisionId":"Q140677589:content:6a9771e925ec14e5","sourceContentHash":"fnv1a64:0ddb4def661e1c76","recordRevisionId":"Q140677589:content:6a9771e925ec14e5","recordContentHash":"fnv1a64:1236d49b3b2d9264","sourceCanonicalUrl":"https://ironstonedrilling.com/","sourceModifiedAt":"2026-10-18T20:38:17.020Z","observedOn":"2026-10-18","permission":{"basis":"public_information","evidenceUrl":"https://ironstonedrilling.com/"},"attributionUrl":"https://ironstonedrilling.com/"}],"quality":{"method":"same_kind_unique_trigram_floor","minimumUniqueTrigramRatio":0.3,"status":"passed"},"title":"What does a fluid-loss additive do in drilling fluid?","summary":"Cited source answers across 1 active corpus record.","question":"What does a fluid-loss additive do in drilling fluid?","answers":[{"entitySlug":"ironstone-drilling-supply-q140677589","entityName":"Ironstone Drilling Supply","answer":"“As the fluid presses against a permeable formation, water tends to filter into the rock and leave the solids behind as a cake on the wellbore wall. A fluid-loss additive builds a thin, low-permeability filter cake so that very little water passes through.”","sourceUrls":["https://ironstonedrilling.com/products/fluid-loss-control"]}]}