Geology: Mature Formations, Low Pressure
\nPressure Gradient: equivalent 4.5 5.0 ppg @ 5,500 feet.
\nPrevious Wells drilled with low density fluids, underbalanced drilling (UBD<\/p>\n
Lost circulation
\nLost circulation during cementing
\nDifficulty with logging and using measurement while drilling (MWD)
\nHigh Risk of H2S<\/p>\n
AphronICS<\/p>\n
AphronICS Successfully drilled to total depth (TD) without lost circulation and eliminated the risk of H2S by maintaining overbalance successful electric logs and exceptional cementing with full returns.<\/p>\n
At least 60% of the overall drilling cost was saved, in comparison with planned cost and previous wells cost. Enabled operator to safely further plan the field and served as an effective alternative to UBD.<\/p>\n
On the third well the operator changed the well design eliminating the intermediate casing.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview Geology: Mature Formations, Low Pressure Pressure Gradient: equivalent 4.5 5.0 ppg @ 5,500 feet. Previous Wells drilled with low density fluids, underbalanced drilling (UBD Problems Experienced Lost circulation Lost circulation during cementing Difficulty with logging and using measurement while drilling (MWD) High Risk of H2S Solution AphronICS Results AphronICS Successfully drilled to total depth […]<\/p>\n","protected":false},"author":1,"featured_media":238,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[9],"tags":[],"class_list":["post-237","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-case-studies"],"_links":{"self":[{"href":"https:\/\/dftfluids.com\/index.php\/wp-json\/wp\/v2\/posts\/237","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dftfluids.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dftfluids.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dftfluids.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dftfluids.com\/index.php\/wp-json\/wp\/v2\/comments?post=237"}],"version-history":[{"count":1,"href":"https:\/\/dftfluids.com\/index.php\/wp-json\/wp\/v2\/posts\/237\/revisions"}],"predecessor-version":[{"id":239,"href":"https:\/\/dftfluids.com\/index.php\/wp-json\/wp\/v2\/posts\/237\/revisions\/239"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dftfluids.com\/index.php\/wp-json\/wp\/v2\/media\/238"}],"wp:attachment":[{"href":"https:\/\/dftfluids.com\/index.php\/wp-json\/wp\/v2\/media?parent=237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dftfluids.com\/index.php\/wp-json\/wp\/v2\/categories?post=237"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dftfluids.com\/index.php\/wp-json\/wp\/v2\/tags?post=237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}