{"id":157150,"date":"2023-09-05T10:26:20","date_gmt":"2023-09-05T04:56:20","guid":{"rendered":"https:\/\/www.gkseries.com\/blog\/?p=157150"},"modified":"2023-09-05T10:26:21","modified_gmt":"2023-09-05T04:56:21","slug":"a-pressure-build-up-test-was-conducted-in-a-well-after-1000-days-of-producing-oil-at-a-constant-rate-of-0-01-reservoir-m3-s","status":"publish","type":"post","link":"https:\/\/www.gkseries.com\/blog\/a-pressure-build-up-test-was-conducted-in-a-well-after-1000-days-of-producing-oil-at-a-constant-rate-of-0-01-reservoir-m3-s\/","title":{"rendered":"A pressure build-up test was conducted in a well after 1000 days of producing oil at a constant rate of 0.01 reservoir-m3\/s"},"content":{"rendered":"\n<p>Q. A pressure build-up test was conducted in a well after 1000 days of producing oil at a constant rate of 0.01 reservoir-m<sup>3<\/sup>\/s. The two shut-in bottom-hole pressure readings taken at 0.5 day and 1 day after shut-in are 150 \u00d7 10<sup>5<\/sup> Pa and 151 \u00d7 10<sup>5<\/sup> Pa, respectively. These pressure points correspond to the linear region of the Horner\u2019s plot. The reservoir thickness is 100 m and oil viscosity is 0.001 Pa.s. The permeability of the reservoir is\u00a0\u00a0\u00a0\u00a0\u00a0 mD (round off to 1 decimal place). [1 mD = 10<sup>-15<\/sup> m<sup>2<\/sup>].<\/p>\n\n\n\n<p>Ans: 55.97mD<\/p>\n\n\n\n<p>Sol:<\/p>\n\n\n\n<p>Q = 0.01 m3\/sec = 0.0629 bbl\/sec = 5434.56 bbl\/day<br>Tp = 1000 days<br>\u2206t1 = 0.5 days<br>\u2206t2 = 1 day<\/p>\n\n\n\n<p>P1 = 150 x 105 pa = 2175.56 psi<br>P2 = 151 x 105 pa = 2190 psi<br>h = 100 m = 328 ft<br>\u00b5o = 0.001 pa-sec = 1 cp<br>Horner time-1 = (1000+0.5)\/0.5 = 2001<br>Horner time-2 = (1000+1)\/1 = 1001<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"336\" height=\"86\" src=\"https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/09\/image-13.png\" alt=\"\" class=\"wp-image-157151\" srcset=\"https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/09\/image-13.png 336w, https:\/\/www.gkseries.com\/blog\/wp-content\/uploads\/2023\/09\/image-13-300x77.png 300w\" sizes=\"auto, (max-width: 336px) 100vw, 336px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Q. A pressure build-up test was conducted in a well after 1000 days of producing oil at a constant rate of 0.01 reservoir-m3\/s. The two shut-in bottom-hole pressure readings taken at 0.5 day and 1 day after shut-in are 150 \u00d7 105 Pa and 151 \u00d7 105 Pa, respectively. These pressure points correspond to the [&hellip;]<\/p>\n","protected":false},"author":419,"featured_media":157152,"comment_status":"open","ping_status":"closed","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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"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":""},"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":[5141],"tags":[5140],"class_list":["post-157150","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gate","tag-gate-questions"],"_links":{"self":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/157150","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/users\/419"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/comments?post=157150"}],"version-history":[{"count":1,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/157150\/revisions"}],"predecessor-version":[{"id":157153,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/157150\/revisions\/157153"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media\/157152"}],"wp:attachment":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media?parent=157150"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/categories?post=157150"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/tags?post=157150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}