Return-Path: Delivered-To: alvarochf@traceseis.com Received: from cs510.bluehost.com by cs510.bluehost.com with LMTP id wLKNNokKtWmUSw4AWiBQxw (envelope-from ) for ; Sat, 14 Mar 2026 01:13:13 -0600 Return-path: Envelope-to: alvarochf@traceseis.com Delivery-date: Sat, 14 Mar 2026 01:13:13 -0600 Received: from maile-cb.linkedin.com ([108.174.6.194]:59163) by cs510.bluehost.com with esmtps (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1w1JBR-00000003ygA-3P2N for alvarochf@traceseis.com; Sat, 14 Mar 2026 01:13:13 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maile.linkedin.com; s=d2048-202308-0e; t=1773472383; bh=q8iLXlciGZmtv8x7837VePgNoG1JV6XQmVcHwAFzP2g=; h=Date:From:Subject:MIME-Version:Content-Type:To:X-LinkedIn-Class: X-LinkedIn-Template:X-LinkedIn-fbl; b=AW5D/crL5f4/PzzIgJ9StBchFssLk/AaWByUB0wtudRR7E3yRBnr3uOVn93y6znGW sjO3RxADw7ru7g6mcBc6jOK2JyyiNUp+QrOy9ZAd2V7ptRA8R2qYLa48lGS/irfUhg uZ4tgR1t45j0hwhZeBNabxOYo0N8A0oFMztbj6RXGcp/+4dmOLyqoEqCY2ahtzBX6U y0Klmrdpc5OS+IBXf9mxFSA3SSOw5tPNa9qNFVaeF8fjSpvdd8R0GvJktc/gO8YCu+ 4M+OIqjv7JWL/nZofxicszNPqhEFoqZA+bzoxUpLyRNmu/hPiyQEIS7d2BEc6mn1qK 6yaArGXAzRIlg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linkedin.com; s=d2048-202308-00; t=1773472383; bh=q8iLXlciGZmtv8x7837VePgNoG1JV6XQmVcHwAFzP2g=; h=Date:From:Subject:MIME-Version:Content-Type:To:X-LinkedIn-Class: X-LinkedIn-Template:X-LinkedIn-fbl; b=QtOw1DPT+hsLFNgg6Zn/ZiYnd5xU6F6dXe+1ThKqKyJ/xvzJ03d7S7omnKPNIF+ID zSNuErcfe/u9mv6bPXAIQAGpel1sWhrojIZZBLYLWMWTu/j3VuMUbPsPt7eT+tSpIT a48ArNCebgfto5UJbY7vuK1ady8WTKv+x13wGdLNT2fHqwBr0IQVqeUYNgzGOysPoR 0UyrhjbLNzY2SEmoesadGmeulRtLa8mh3E1ZSs7WVZ1p0MuI6QeI0V10LWeN55fN9Q EGmZlaioA/AgJSVCx4dUDvb5K7crU0JryDV6iqmHr4Ia7IvgUwNZ/8u+ufD/75XGxO xAOy53hdR1Ylg== Date: Sat, 14 Mar 2026 07:13:02 +0000 (UTC) From: "Reservoir Solutions (RES) via LinkedIn" Message-ID: <1162143195.3952210.1773472382899@lva1-app17173.prod.linkedin.com> Subject: Types of Casing in Oil and Gas Wells MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_3952208_961407243.1773472382896" To: "Alvaro Chaveste Jr." X-LinkedIn-Class: EMAIL-DEFAULT X-LinkedIn-Template: email_series_follow_newsletter_02 X-LinkedIn-fbl: m2-aszyax645obvl865vui4zucurtf96ai1jsj04lw65lnvfuvhdhpxutcufic3jtdyryo7sle5g1q6mfk083xxiqo2bca5vz6cixrq0m X-LinkedIn-Id: niwq2c-mmpznwex-y List-Unsubscribe: List-Unsubscribe-Post: List-Unsubscribe=One-Click Require-Recipient-Valid-Since: alvarochf@traceseis.com; Wed, 13 Nov 2024 04:36:45 +0000 ------=_Part_3952208_961407243.1773472382896 Content-Type: text/plain;charset=UTF-8 Content-Transfer-Encoding: quoted-printable Content-ID: text-body Reservoir Solutions (RES) By Reservoir Solutions (RES) By Reservoir Solutions (RES) =20 =20 Read this article on LinkedIn to join the conversation Read on LinkedIn https://www.linkedin.com/comm/pulse/types-casing-oil-gas-wells-reservoir-so= lutions-pimxf?lipi=3Durn%3Ali%3Apage%3Aemail_email_series_follow_newsletter= _02%3BVr93akSbTqyKXFiKmP28Qg%3D%3D&midToken=3DAQHs81gzrEnLQw&midSig=3D2n7pz= wUgZN1cc1&trk=3Deml-email_series_follow_newsletter_02-null-0-read_more_bann= er_cta_&trkEmail=3Deml-email_series_follow_newsletter_02-null-0-read_more_b= anner_cta_-null-niwq2c~mmpznwex~y-null-null&eid=3Dniwq2c-mmpznwex-y =20 Casing is one of the most critical components in oil and gas well construct= ion. It is a steel pipe that is installed in the wellbore and cemented in p= lace to provide structural integrity, prevent formation collapse, isolate d= ifferent geological layers, and protect groundwater resources. Without prop= er casing design and installation, drilling operations would be unsafe and = inefficient. Understanding the different types of casing helps engineers, g= eologists, students, and professionals in related fields better understand = how wells are constructed and maintained. Each type of casing has a specifi= c role during drilling and production operations. 1. Conductor Casing The c= onductor casing is the first casing installed in a well. It is typically pl= aced at a shallow depth near the surface. Its primary purpose is to stabili= ze loose surface formations such as sand, gravel, or unconsolidated sedimen= ts. These formations can easily collapse during drilling, so the conductor = casing prevents this from happening. Another important function of conducto= r casing is to provide a foundation for the wellhead and drilling equipment= . It also helps guide the drilling process and allows drilling fluids to ci= rculate properly at the early stages of drilling. Conductor casing usually = has a large diameter compared to other casing strings and is installed eith= er by driving it into the ground or by drilling and cementing it in place. = 2. Surface Casing Surface casing is installed after the conductor casing an= d extends deeper into the well. Its main purpose is environmental protectio= n. It isolates freshwater aquifers from the deeper formations that may cont= ain hydrocarbons, saltwater, or other fluids that could contaminate groundw= ater. Once the surface casing is installed, cement is pumped between the ca= sing and the wellbore wall to create a strong seal. This cement barrier pre= vents fluid migration between formations. Surface casing also provides stru= ctural support for the blowout preventer (BOP), which is a critical safety = device used during drilling operations. Because of its role in protecting g= roundwater, the depth and installation of surface casing are strictly regul= ated by government authorities in most countries. 3. Intermediate Casing In= many wells, especially deep or complex wells, intermediate casing is insta= lled between the surface casing and the production casing. The purpose of i= ntermediate casing is to isolate problematic formations that may cause dril= ling difficulties. These formations may include zones with abnormal pressur= e, unstable shale layers, or formations that absorb drilling fluids. By iso= lating these zones, intermediate casing allows drilling to continue safely = toward the target reservoir. Not all wells require intermediate casing. How= ever, in deep wells or wells drilled in geologically complex regions, it is= often necessary to maintain well control and protect drilling equipment. 4= . Production Casing Production casing is the final casing string installed = in the well before production begins. It extends from the surface down to t= he hydrocarbon reservoir. Its main purpose is to isolate the reservoir and = allow safe extraction of oil or gas. Production casing provides a stable pa= thway for production tubing, which is the pipe through which hydrocarbons f= low to the surface. Like other casing strings, production casing is cemente= d in place to prevent fluid movement between formations. This ensures that = hydrocarbons flow only through the intended path and do not leak into other= geological layers. Production casing must be designed to withstand high pr= essure, temperature variations, and long-term exposure to corrosive fluids.= 5. Liner A liner is similar to casing but does not extend all the way to t= he surface. Instead, it is suspended inside the previous casing string. Lin= ers are often used to reduce costs and improve drilling efficiency. Because= they are shorter than full casing strings, they require less steel and les= s cement. There are several types of liners used in well construction, incl= uding production liners, intermediate liners, and liner tiebacks. In some c= ases, a liner may later be extended to the surface using a tieback casing i= f additional support is required. Importance of Proper Casing Design Proper= casing design is essential for maintaining well integrity throughout the l= ife of the well. Engineers must consider several factors when selecting cas= ing types and sizes, including formation pressure, temperature, well depth,= and potential drilling hazards. Incorrect casing design can lead to seriou= s problems such as well collapse, fluid leakage, blowouts, or environmental= contamination. For this reason, casing programs are carefully planned befo= re drilling begins and are continuously evaluated as drilling progresses. C= onclusion Casing plays a fundamental role in safe and efficient well constr= uction. From the conductor casing at the surface to the production casing n= ear the reservoir, each casing string serves a specific purpose in maintain= ing well stability and protecting surrounding formations. Understanding the= different types of casing helps professionals and students in the petroleu= m industry gain a clearer picture of how wells are drilled, secured, and pr= epared for production. As drilling technology advances and wells become dee= per and more complex, the importance of proper casing design and installati= on continues to grow. Keep reading on LinkedIn https://www.linkedin.com/comm/pulse/types-casing-oil-gas-wells-reservoir-so= lutions-pimxf?lipi=3Durn%3Ali%3Apage%3Aemail_email_series_follow_newsletter= _02%3BVr93akSbTqyKXFiKmP28Qg%3D%3D&midToken=3DAQHs81gzrEnLQw&midSig=3D2n7pz= wUgZN1cc1&trk=3Deml-email_series_follow_newsletter_02-newsletter_content_pr= eview_text-0-readmore_button_&trkEmail=3Deml-email_series_follow_newsletter= _02-newsletter_content_preview_text-0-readmore_button_-null-niwq2c~mmpznwex= ~y-null-null&eid=3Dniwq2c-mmpznwex-y =20 =20 ---------------------------------------- This email was intended for Alvaro Chaveste Jr. (TraceSeis, Inc: Mapping th= e Subsurface with Measured Precision.) 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LinkedIn and the LinkedIn logo are registered trademarks of LinkedIn. ------=_Part_3952208_961407243.1773472382896 Content-Type: text/html;charset=UTF-8 Content-Transfer-Encoding: quoted-printable Content-ID: html-body <= head> </t= itle> <style> @media (max-width: 512px) { .mercado-container { width: 100% = !important; } } </style> <style> @media (max-width: 480px) { .inline-button, .inline-button tabl= e { display: none !important; } .full-width-button, .full-width-button table { display: table != important; } } @media (max-width: 320px) { .games-notification-badge { display: none !important; } } </style> <style>body {font-family: -apple-system, system-ui, Blin= kMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', 'Fira Sans', Ubuntu, Oxygen, 'Oxygen Sans', Cantarell, 'Droid S= ans', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Lucida Grande', Helvetica= , Arial, sans-serif;}</style> <!--[if mso]><style type=3D"text/css"> </styl= e><![endif]--> <!--[if IE]><style type=3D"text/css"> </style><![endif]--> <= /head> <body dir=3D"ltr" class=3D"font-sans bg-color-background-canvas w-fu= ll m-0 p-0 pt-1" style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adj= ust: 100%; margin: 0px; width: 100%; background-color: #f3f2f0; padding: 0p= x; padding-top: 8px; font-family: -apple-system, system-ui, BlinkMacSystemF= ont, 'Segoe UI', Roboto, 'Helvetica Neue', 'Fira Sans', Ubuntu, Oxygen, 'Ox= ygen Sans', Cantarell, 'Droid Sans', 'Apple Color Emoji', 'Segoe UI Emoji',= 'Segoe UI Emoji', 'Segoe UI Symbol', 'Lucida Grande', Helvetica, Arial, sa= ns-serif;"> <div class=3D"h-0 opacity-0 text-transparent invisible overflow= -hidden w-0 max-h-[0]" style=3D"visibility: hidden; height: 0px; max-height= : 0; width: 0px; overflow: hidden; opacity: 0; mso-hide: all;" data-email-p= reheader=3D"true">Casing is one of the most critical components in oil and = gas well construction.=E2=80=A6</div> <div class=3D"h-0 opacity-0 text-tran= sparent invisible overflow-hidden w-0 max-h-[0]" style=3D"visibility: hidde= n; height: 0px; max-height: 0; width: 0px; overflow: hidden; opacity: 0; ms= o-hide: all;"> =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0= =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0 =CD=8F=C2=A0= =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD= =8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0 =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD= =8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F= =C2=A0 =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F= =C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0 =CD=8F=C2=A0=CD=8F= =C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2= =A0=CD=8F=C2=A0=CD=8F=C2=A0 =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2= =A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0= =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0= =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0 =CD=8F=C2=A0=CD=8F=C2=A0= =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD= =8F=C2=A0=CD=8F=C2=A0 =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD= =8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0 =CD= =8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F= =C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0 =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F= =C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2= =A0=CD=8F=C2=A0 =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2= =A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0 =CD=8F=C2= =A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0= =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0 =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0= =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD= =8F=C2=A0 =CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD= =8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0 =CD=8F=C2=A0=CD= =8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F=C2=A0=CD=8F= =C2=A0=CD=8F=C2=A0=CD=8F=C2=A0 </div> <table role=3D"presentation" valign= =3D"top" border=3D"0" cellspacing=3D"0" cellpadding=3D"0" width=3D"512" ali= gn=3D"center" class=3D"mercado-container w-[512px] max-w-[512px] mx-auto my= -0 p-0 " style=3D"-webkit-text-size-adjust: 100%; 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-ms-text-size-adjust: 100%; mso= -table-lspace: 0pt; mso-table-rspace: 0pt; padding-left: 24px; padding-righ= t: 24px; padding-top: 8px;"> <table role=3D"presentation" valign=3D"top" bo= rder=3D"0" cellspacing=3D"0" cellpadding=3D"0" width=3D"100%" class=3D"font= -sans" style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%;= mso-table-lspace: 0pt; mso-table-rspace: 0pt; font-family: -apple-system, = system-ui, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', 'Fira = Sans', Ubuntu, Oxygen, 'Oxygen Sans', Cantarell, 'Droid Sans', 'Apple Color= Emoji', 'Segoe UI Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Lucida Gra= nde', Helvetica, Arial, sans-serif;"> <tbody> <tr> <td valign=3D"top" class= =3D"pr-1 w-6" style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adjust= : 100%; mso-table-lspace: 0pt; mso-table-rspace: 0pt; width: 48px; padding-= right: 8px;" width=3D"48"> <a href=3D"https://www.linkedin.com/comm/newslet= ters/7221979031120805889?lipi=3Durn%3Ali%3Apage%3Aemail_email_series_follow= _newsletter_02%3BVr93akSbTqyKXFiKmP28Qg%3D%3D&midToken=3DAQHs81gzrEnLQw= &midSig=3D2n7pzwUgZN1cc1&trk=3Deml-email_series_follow_newsletter_0= 2-newsletter_entity_lockup-0-newsletter_entity_cta&trkEmail=3Deml-email= _series_follow_newsletter_02-newsletter_entity_lockup-0-newsletter_entity_c= ta-null-niwq2c~mmpznwex~y-null-null&eid=3Dniwq2c-mmpznwex-y" target=3D"= _blank" style=3D"color: #0a66c2; cursor: pointer; display: inline-block; te= xt-decoration: none; -webkit-text-size-adjust: 100%; -ms-text-size-adjust: = 100%;"> <img class=3D"inline-block relative bg-color-entity-ghost-backgroun= d w-6 h-6 rounded-md" src=3D"https://media.licdn.com/dms/image/v2/D4D12AQGt= 2WJKsDDmdw/series-logo_image-shrink_100_100/series-logo_image-shrink_100_10= 0/0/1723371514382?e=3D1775088000&v=3Dbeta&t=3D347zHSzbVz64M3xV8DB6a= lezzLQx_ZAcFCQ6Yh-g69E" alt=3D"Open Reservoir Solutions (RES)" style=3D"out= line: none; text-decoration: none; -ms-interpolation-mode: bicubic; positio= n: relative; display: inline-block; height: 48px; width: 48px; border-radiu= s: 8px; background-color: #eae6df;" width=3D"48" height=3D"48"> </a> </td> = <td valign=3D"top" style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-a= djust: 100%; mso-table-lspace: 0pt; mso-table-rspace: 0pt;"> <table role=3D= "presentation" valign=3D"top" border=3D"0" cellspacing=3D"0" cellpadding=3D= "0" width=3D"100%" style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-a= djust: 100%; mso-table-lspace: 0pt; mso-table-rspace: 0pt;"> <tbody> <tr> <= td style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; mso= -table-lspace: 0pt; mso-table-rspace: 0pt;"> <a href=3D"https://www.linkedi= n.com/comm/newsletters/7221979031120805889?lipi=3Durn%3Ali%3Apage%3Aemail_e= mail_series_follow_newsletter_02%3BVr93akSbTqyKXFiKmP28Qg%3D%3D&midToke= n=3DAQHs81gzrEnLQw&midSig=3D2n7pzwUgZN1cc1&trk=3Deml-email_series_f= ollow_newsletter_02-newsletter_entity_lockup-0-newsletter_entity_cta&tr= kEmail=3Deml-email_series_follow_newsletter_02-newsletter_entity_lockup-0-n= ewsletter_entity_cta-null-niwq2c~mmpznwex~y-null-null&eid=3Dniwq2c-mmpz= nwex-y" target=3D"_blank" class=3D"no-underline" style=3D"color: #0a66c2; c= ursor: pointer; display: inline-block; text-decoration: none; -webkit-text-= size-adjust: 100%; -ms-text-size-adjust: 100%; text-decoration-line: none;"= > <div class=3D"pb-0.5" style=3D"padding-bottom: 4px;"> <span class=3D"text= -md font-bold text-color-text break-words leading-regular" style=3D"overflo= w-wrap: break-word; font-size: 16px; font-weight: 600; line-height: 1.25; c= olor: rgba(0, 0, 0, 0.9);"> Reservoir Solutions (RES) </span> </div> </a> <= /td> </tr> <tr> <td style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-= adjust: 100%; mso-table-lspace: 0pt; mso-table-rspace: 0pt;"> <a href=3D"ht= tps://www.linkedin.com/comm/newsletters/7221979031120805889?lipi=3Durn%3Ali= %3Apage%3Aemail_email_series_follow_newsletter_02%3BVr93akSbTqyKXFiKmP28Qg%= 3D%3D&midToken=3DAQHs81gzrEnLQw&midSig=3D2n7pzwUgZN1cc1&trk=3De= ml-email_series_follow_newsletter_02-newsletter_entity_lockup-0-newsletter_= entity_cta&trkEmail=3Deml-email_series_follow_newsletter_02-newsletter_= entity_lockup-0-newsletter_entity_cta-null-niwq2c~mmpznwex~y-null-null&= eid=3Dniwq2c-mmpznwex-y" target=3D"_blank" class=3D"no-underline" style=3D"= color: #0a66c2; cursor: pointer; display: inline-block; text-decoration: no= ne; -webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; text-decora= tion-line: none;"> <span class=3D"text-xs text-color-text-low-emphasis lead= ing-regular" style=3D"font-size: 12px; line-height: 1.25; color: rgba(0, 0,= 0, 0.6);"> Reservoir Solutions delivers cutting-edge petroleum services, t= raining optimizing reservoir=E2=80=A6 </span> </a> </td> </tr> </tbody> </t= able> </td> </tr> </tbody> </table> </td> </tr> <tr data-test-id=3D"newslet= ter-content-preview"> <td class=3D"px-3 pt-2" style=3D"-webkit-text-size-ad= just: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; mso-table-rs= pace: 0pt; padding-left: 24px; padding-right: 24px; padding-top: 16px;"> <t= able role=3D"presentation" valign=3D"top" border=3D"0" cellspacing=3D"0" ce= llpadding=3D"0" width=3D"100%" style=3D"-webkit-text-size-adjust: 100%; -ms= -text-size-adjust: 100%; mso-table-lspace: 0pt; mso-table-rspace: 0pt;"> <t= body> <tr> <td class=3D"overflow-hidden " style=3D"-webkit-text-size-adjust= : 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; mso-table-rspace= : 0pt; overflow: hidden;"> <table role=3D"presentation" valign=3D"top" bord= er=3D"0" cellspacing=3D"0" cellpadding=3D"0" width=3D"100%" style=3D"-webki= t-text-size-adjust: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt= ; mso-table-rspace: 0pt;"> <tbody> <tr> <td style=3D"-webkit-text-size-adju= st: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; mso-table-rspa= ce: 0pt;"> <a href=3D"https://www.linkedin.com/comm/pulse/types-casing-oil-= gas-wells-reservoir-solutions-pimxf?lipi=3Durn%3Ali%3Apage%3Aemail_email_se= ries_follow_newsletter_02%3BVr93akSbTqyKXFiKmP28Qg%3D%3D&midToken=3DAQH= s81gzrEnLQw&midSig=3D2n7pzwUgZN1cc1&trk=3Deml-email_series_follow_n= ewsletter_02-newsletter_content_preview-0-headline_&trkEmail=3Deml-emai= l_series_follow_newsletter_02-newsletter_content_preview-0-headline_-null-n= iwq2c~mmpznwex~y-null-null&eid=3Dniwq2c-mmpznwex-y" target=3D"_blank" c= lass=3D"w-full" style=3D"color: #0a66c2; cursor: pointer; display: inline-b= lock; text-decoration: none; -webkit-text-size-adjust: 100%; -ms-text-size-= adjust: 100%; width: 100%;"> <img class=3D"block w-full aspect-[744/400] ob= ject-cover overflow-hidden" data-test-id=3D"newsletter-content-preview__cov= er-image" alt=3D"Newsletter cover image" src=3D"https://media.licdn.com/dms= /image/v2/D4D12AQFLKq4XngbZzQ/article-cover_image-shrink_720_1280/B4DZzrLfq= jIcAI-/0/1773472221691?e=3D1775088000&v=3Dbeta&t=3Dp4zTZbcqV-DTFZOH= kLmVB2so5PC3E44mlbT8DR-UlyQ" style=3D"outline: none; text-decoration: none;= -ms-interpolation-mode: bicubic; display: block; aspect-ratio: 744/400; wi= dth: 100%; overflow: hidden; object-fit: cover;"> </a> </td> </tr> <tr> <td= class=3D"py-2" style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adju= st: 100%; mso-table-lspace: 0pt; mso-table-rspace: 0pt; padding-top: 16px; = padding-bottom: 16px;"> <table role=3D"presentation" valign=3D"top" border= =3D"0" cellspacing=3D"0" cellpadding=3D"0" width=3D"100%" style=3D"-webkit-= text-size-adjust: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; = mso-table-rspace: 0pt;"> <tbody> <tr> <td style=3D"-webkit-text-size-adjust= : 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; mso-table-rspace= : 0pt;"> <a href=3D"https://www.linkedin.com/comm/pulse/types-casing-oil-ga= s-wells-reservoir-solutions-pimxf?lipi=3Durn%3Ali%3Apage%3Aemail_email_seri= es_follow_newsletter_02%3BVr93akSbTqyKXFiKmP28Qg%3D%3D&midToken=3DAQHs8= 1gzrEnLQw&midSig=3D2n7pzwUgZN1cc1&trk=3Deml-email_series_follow_new= sletter_02-newsletter_content_preview-0-title_&trkEmail=3Deml-email_ser= ies_follow_newsletter_02-newsletter_content_preview-0-title_-null-niwq2c~mm= pznwex~y-null-null&eid=3Dniwq2c-mmpznwex-y" target=3D"_blank" class=3D"= no-underline font-medium text-sm m-0 text-system-gray-90" style=3D"cursor: = pointer; display: inline-block; text-decoration: none; -webkit-text-size-ad= just: 100%; -ms-text-size-adjust: 100%; margin: 0px; font-size: 14px; font-= weight: 500; color: #282828; text-decoration-line: none;"> <h2 class=3D"m-0= text-display-sm leading-regular text-color-text font-bold font-sans" style= =3D"margin: 0px; font-family: -apple-system, system-ui, BlinkMacSystemFont,= 'Segoe UI', Roboto, 'Helvetica Neue', 'Fira Sans', Ubuntu, Oxygen, 'Oxygen= Sans', Cantarell, 'Droid Sans', 'Apple Color Emoji', 'Segoe UI Emoji', 'Se= goe UI Emoji', 'Segoe UI Symbol', 'Lucida Grande', Helvetica, Arial, sans-s= erif; font-size: 24px; font-weight: 600; line-height: 1.25; color: rgba(0, = 0, 0, 0.9);"> Types of Casing in Oil and Gas Wells </h2> </a> </td> </tr> <= tr> <td style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%= ; mso-table-lspace: 0pt; mso-table-rspace: 0pt;"> <table role=3D"presentati= on" valign=3D"top" border=3D"0" cellspacing=3D"0" cellpadding=3D"0" width= =3D"100%" data-test-id=3D"newsletter-author-lockup-redesign" class=3D"mt-1 = mb-2" style=3D"-webkit-text-size-adjust: 100%; 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text-decorati= on: none; -ms-interpolation-mode: bicubic; position: relative; display: inl= ine-block; height: 32px; width: 32px; background-color: #eae6df; vertical-a= lign: middle;" width=3D"32" height=3D"32"> </a> </td> <td style=3D"-webkit-= text-size-adjust: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; = mso-table-rspace: 0pt;"> <a href=3D"https://www.linkedin.com/comm/company/r= eservoir-solutions?lipi=3Durn%3Ali%3Apage%3Aemail_email_series_follow_newsl= etter_02%3BVr93akSbTqyKXFiKmP28Qg%3D%3D&midToken=3DAQHs81gzrEnLQw&m= idSig=3D2n7pzwUgZN1cc1&trk=3Deml-email_series_follow_newsletter_02-news= letter_content_preview-0-author_&trkEmail=3Deml-email_series_follow_new= sletter_02-newsletter_content_preview-0-author_-null-niwq2c~mmpznwex~y-null= -null&eid=3Dniwq2c-mmpznwex-y" target=3D"_blank" class=3D"no-underline = ml-1" style=3D"color: #0a66c2; cursor: pointer; display: inline-block; text= -decoration: none; -webkit-text-size-adjust: 100%; -ms-text-size-adjust: 10= 0%; margin-left: 8px; text-decoration-line: none;"> <span class=3D"font-san= s font-bold text-sm mb-3 text-color-text-low-emphasis leading-regular" styl= e=3D"margin-bottom: 24px; font-family: -apple-system, system-ui, BlinkMacSy= stemFont, 'Segoe UI', Roboto, 'Helvetica Neue', 'Fira Sans', Ubuntu, Oxygen= , 'Oxygen Sans', Cantarell, 'Droid Sans', 'Apple Color Emoji', 'Segoe UI Em= oji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Lucida Grande', Helvetica, Aria= l, sans-serif; font-size: 14px; font-weight: 600; line-height: 1.25; color:= rgba(0, 0, 0, 0.6);"> Reservoir Solutions (RES) </span> </a> </td> </tr> <= /tbody> </table> </td> </tr> <tr> <td class=3D"pb-1" style=3D"-webkit-text-= size-adjust: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; mso-t= able-rspace: 0pt; padding-bottom: 8px;"> <div class=3D"p-3 bg-color-surface= -tint rounded-md font-sans" data-test-id=3D"newsletter-cta-banner" style=3D= "border-radius: 8px; background-color: #f5f7f9; padding: 24px; font-family:= -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helveti= ca Neue', 'Fira Sans', Ubuntu, Oxygen, 'Oxygen Sans', Cantarell, 'Droid San= s', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Emoji', 'Segoe UI Symb= ol', 'Lucida Grande', Helvetica, Arial, sans-serif;"> <div class=3D"mb-1.5"= style=3D"margin-bottom: 12px;"> <span class=3D"text-md leading-regular fon= t-bold text-color-text" style=3D"font-size: 16px; font-weight: 600; line-he= ight: 1.25; color: rgba(0, 0, 0, 0.9);"> Read this article on LinkedIn to j= oin the conversation </span> </div> <table role=3D"presentation" valign=3D"= top" border=3D"0" cellspacing=3D"0" cellpadding=3D"0" width=3D"100%" class= =3D"email-button " data-test-id=3D"email-button" style=3D"-webkit-text-size= -adjust: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; mso-table= -rspace: 0pt;"> <tbody> <tr> <td valign=3D"middle" align=3D"left" style=3D"= -webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; mso-table-lspac= e: 0pt; mso-table-rspace: 0pt;"> <a href=3D"https://www.linkedin.com/comm/p= ulse/types-casing-oil-gas-wells-reservoir-solutions-pimxf?lipi=3Durn%3Ali%3= Apage%3Aemail_email_series_follow_newsletter_02%3BVr93akSbTqyKXFiKmP28Qg%3D= %3D&midToken=3DAQHs81gzrEnLQw&midSig=3D2n7pzwUgZN1cc1&trk=3Deml= -email_series_follow_newsletter_02-newsletter_content_preview-0-read_more_b= anner_cta_&trkEmail=3Deml-email_series_follow_newsletter_02-newsletter_= content_preview-0-read_more_banner_cta_-null-niwq2c~mmpznwex~y-null-null&am= p;eid=3Dniwq2c-mmpznwex-y" target=3D"_blank" aria-label=3D"Open this articl= e on LinkedIn" class=3D"align-top no-underline " style=3D"color: #0a66c2; c= ursor: pointer; display: inline-block; text-decoration: none; -webkit-text-= size-adjust: 100%; -ms-text-size-adjust: 100%; vertical-align: top; text-de= coration-line: none;"> <table role=3D"presentation" valign=3D"top" border= =3D"0" cellspacing=3D"0" cellpadding=3D"0" width=3D"auto" class=3D"border-s= eparate " style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adjust: 10= 0%; mso-table-lspace: 0pt; mso-table-rspace: 0pt; border-collapse: separate= ;"> <tbody> <tr> <td class=3D"btn-sm btn-primary border-color-brand button-= link leading-regular !min-h-[auto] !shadow-none border-1 border-solid" styl= e=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; mso-table-= lspace: 0pt; mso-table-rspace: 0pt; height: min-content; border-radius: 24p= x; padding-top: 7px; padding-bottom: 7px; padding-left: 16px; padding-right= : 16px; text-align: center; font-size: 14px; font-weight: 600; cursor: poin= ter; text-decoration-line: none; background-color: #0a66c2; color: #ffffff;= border-width: 1px; border-style: solid; border-color: #0a66c2; line-height= : 1.25; min-height: auto !important; box-shadow: 0 0 #0000, 0 0 #0000, 0 0 = #0000 !important;"> <a href=3D"https://www.linkedin.com/comm/pulse/types-ca= sing-oil-gas-wells-reservoir-solutions-pimxf?lipi=3Durn%3Ali%3Apage%3Aemail= _email_series_follow_newsletter_02%3BVr93akSbTqyKXFiKmP28Qg%3D%3D&midTo= ken=3DAQHs81gzrEnLQw&midSig=3D2n7pzwUgZN1cc1&trk=3Deml-email_series= _follow_newsletter_02-newsletter_content_preview-0-read_more_banner_cta_&am= p;trkEmail=3Deml-email_series_follow_newsletter_02-newsletter_content_previ= ew-0-read_more_banner_cta_-null-niwq2c~mmpznwex~y-null-null&eid=3Dniwq2= c-mmpznwex-y" target=3D"_blank" tabindex=3D"-1" aria-hidden=3D"true" class= =3D"no-underline" style=3D"color: #0a66c2; cursor: pointer; display: inline= -block; text-decoration: none; -webkit-text-size-adjust: 100%; -ms-text-siz= e-adjust: 100%; text-decoration-line: none;"> <span class=3D"no-underline t= ext-white" style=3D"color: #ffffff; text-decoration-line: none;"> Read on L= inkedIn </span> </a> </td> </tr> </tbody> </table> </a> </td> </tr> </tbody= > </table> </div> </td> </tr> <tr data-test-id=3D"newsletter-content-previe= w--content"> <td class=3D"font-sans text-md leading-open text-system-gray-9= 0" style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; mso= -table-lspace: 0pt; mso-table-rspace: 0pt; font-family: -apple-system, syst= em-ui, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', 'Fira Sans= ', Ubuntu, Oxygen, 'Oxygen Sans', Cantarell, 'Droid Sans', 'Apple Color Emo= ji', 'Segoe UI Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Lucida Grande'= , Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.5; color: #= 282828;"> <div data-test-id=3D"publishing-text-block"> <p class=3D"m-0 mt-1= .5 text-md leading-open" style=3D"font-weight: 400; margin: 0px; margin-top= : 12px; font-size: 16px; line-height: 1.5;"> <span class data-test-id=3D"li= ttle-text-block">Casing is one of the most critical components in oil and g= as well construction. It is a steel pipe that is installed in the wellbore = and cemented in place to provide structural integrity, prevent formation co= llapse, isolate different geological layers, and protect groundwater resour= ces. Without proper casing design and installation, drilling operations wou= ld be unsafe and inefficient.</span> </p> </div> <div data-test-id=3D"publi= shing-text-block"> <p class=3D"m-0 mt-1.5 text-md leading-open" style=3D"fo= nt-weight: 400; margin: 0px; margin-top: 12px; font-size: 16px; line-height= : 1.5;"> <span class data-test-id=3D"little-text-block">Understanding the d= ifferent types of casing helps engineers, geologists, students, and profess= ionals in related fields better understand how wells are constructed and ma= intained. Each type of casing has a specific role during drilling and produ= ction operations.</span> </p> </div> <hr data-test-id=3D"publishing-divider= -block" class=3D"my-1 h-[1px] border-0 bg-system-gray-60" style=3D"margin-t= op: 8px; margin-bottom: 8px; height: 1px; border-width: 0; background-color= : #8c8c8c;"> <div data-test-id=3D"publishing-text-block"> <h3 class=3D"m-0 = text-md text-system-gray-90 pt-1 pb-0.5 leading-regular font-bold" data-tes= t-id=3D"publishing-text-block-h2" style=3D"margin: 0px; padding-bottom: 4px= ; padding-top: 8px; font-size: 16px; font-weight: 600; line-height: 1.25; c= olor: #282828;"> <span class data-test-id=3D"little-text-block">1. Conducto= r Casing</span> </h3> </div> <div data-test-id=3D"publishing-text-block"> <= p class=3D"m-0 mt-1.5 text-md leading-open" style=3D"font-weight: 400; marg= in: 0px; margin-top: 12px; font-size: 16px; line-height: 1.5;"> <span class= data-test-id=3D"little-text-block">The conductor casing is the first casin= g installed in a well. It is typically placed at a shallow depth near the s= urface.</span> </p> </div> <div data-test-id=3D"publishing-text-block"> <p = class=3D"m-0 mt-1.5 text-md leading-open" style=3D"font-weight: 400; margin= : 0px; margin-top: 12px; font-size: 16px; line-height: 1.5;"> <span class d= ata-test-id=3D"little-text-block">Its primary purpose is to stabilize loose= surface formations such as sand, gravel, or unconsolidated sediments. Thes= e formations can easily collapse during drilling, so the conductor casing p= revents this from happening.</span> </p> </div> <div data-test-id=3D"publis= hing-text-block"> <p class=3D"m-0 mt-1.5 text-md leading-open" style=3D"fon= t-weight: 400; margin: 0px; margin-top: 12px; font-size: 16px; line-height:= 1.5;"> <span class data-test-id=3D"little-text-block">Another important fu= nction of conductor casing is to provide a foundation for the wellhead and = drilling equipment. It also helps guide the drilling process and allows dri= lling fluids to circulate properly at the early stages of drilling.</span> = </p> </div> <div data-test-id=3D"publishing-text-block"> <p class=3D"m-0 mt= -1.5 text-md leading-open" style=3D"font-weight: 400; margin: 0px; margin-t= op: 12px; font-size: 16px; line-height: 1.5;"> <span class data-test-id=3D"= little-text-block">Conductor casing usually has a large diameter compared t= o other casing strings and is installed either by driving it into the groun= d or by drilling and cementing it in place.</span> </p> </div> <hr data-tes= t-id=3D"publishing-divider-block" class=3D"my-1 h-[1px] border-0 bg-system-= gray-60" style=3D"margin-top: 8px; margin-bottom: 8px; height: 1px; border-= width: 0; background-color: #8c8c8c;"> <div data-test-id=3D"publishing-text= -block"> <h3 class=3D"m-0 text-md text-system-gray-90 pt-1 pb-0.5 leading-r= egular font-bold" data-test-id=3D"publishing-text-block-h2" style=3D"margin= : 0px; padding-bottom: 4px; padding-top: 8px; font-size: 16px; font-weight:= 600; line-height: 1.25; color: #282828;"> <span class data-test-id=3D"litt= le-text-block">2. Surface Casing</span> </h3> </div> <div data-test-id=3D"p= ublishing-text-block"> <p class=3D"m-0 mt-1.5 text-md leading-open" style= =3D"font-weight: 400; margin: 0px; margin-top: 12px; font-size: 16px; line-= height: 1.5;"> <span class data-test-id=3D"little-text-block">Surface casin= g is installed after the conductor casing and extends deeper into the well.= </span> </p> </div> <span>...</span> </td> </tr> <tr> <td class=3D"pt-2 no-= underline" style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adjust: 1= 00%; mso-table-lspace: 0pt; mso-table-rspace: 0pt; padding-top: 16px; text-= decoration-line: none;"> <table role=3D"presentation" valign=3D"top" border= =3D"0" cellspacing=3D"0" cellpadding=3D"0" width=3D"100%" class=3D"email-bu= tton series-content-preview__bottom-cta" data-test-id=3D"email-button" styl= e=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; mso-table-= lspace: 0pt; mso-table-rspace: 0pt;"> <tbody> <tr> <td valign=3D"middle" al= ign=3D"left" style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adjust:= 100%; mso-table-lspace: 0pt; mso-table-rspace: 0pt;"> <a href=3D"https://w= ww.linkedin.com/comm/pulse/types-casing-oil-gas-wells-reservoir-solutions-p= imxf?lipi=3Durn%3Ali%3Apage%3Aemail_email_series_follow_newsletter_02%3BVr9= 3akSbTqyKXFiKmP28Qg%3D%3D&midToken=3DAQHs81gzrEnLQw&midSig=3D2n7pzw= UgZN1cc1&trk=3Deml-email_series_follow_newsletter_02-newsletter_content= _preview-0-readmore_button_&trkEmail=3Deml-email_series_follow_newslett= er_02-newsletter_content_preview-0-readmore_button_-null-niwq2c~mmpznwex~y-= null-null&eid=3Dniwq2c-mmpznwex-y" target=3D"_blank" aria-label=3D"Open= Reservoir Solutions (RES) on LinkedIn" class=3D"align-top no-underline " s= tyle=3D"color: #0a66c2; cursor: pointer; display: inline-block; text-decora= tion: none; -webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; ver= tical-align: top; text-decoration-line: none; width: 100%;"> <table role=3D= "presentation" valign=3D"top" border=3D"0" cellspacing=3D"0" cellpadding=3D= "0" width=3D"100%" class=3D"border-separate " style=3D"-webkit-text-size-ad= just: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; mso-table-rs= pace: 0pt; border-collapse: separate; width: 100%;"> <tbody> <tr> <td class= =3D"btn-md btn-secondary-emphasis border-color-brand button-link leading-re= gular !min-h-[auto] !shadow-none border-1 border-solid font-sans" data-test= -id=3D"newsletter-content-preview-redesign-bottom-cta" style=3D"-webkit-tex= t-size-adjust: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; mso= -table-rspace: 0pt; height: min-content; border-radius: 24px; padding-top: = 12px; padding-bottom: 12px; padding-left: 24px; padding-right: 24px; text-a= lign: center; font-size: 16px; font-weight: 600; cursor: pointer; text-deco= ration-line: none; background-color: rgba(0, 0, 0, 0); color: #0a66c2; bord= er-width: 1px; border-style: solid; border-color: #0a66c2; font-family: -ap= ple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica N= eue', 'Fira Sans', Ubuntu, Oxygen, 'Oxygen Sans', Cantarell, 'Droid Sans', = 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol',= 'Lucida Grande', Helvetica, Arial, sans-serif; line-height: 1.25; min-heig= ht: auto !important; box-shadow: 0 0 #0000, 0 0 #0000, 0 0 #0000 !important= ;"> <a href=3D"https://www.linkedin.com/comm/pulse/types-casing-oil-gas-wel= ls-reservoir-solutions-pimxf?lipi=3Durn%3Ali%3Apage%3Aemail_email_series_fo= llow_newsletter_02%3BVr93akSbTqyKXFiKmP28Qg%3D%3D&midToken=3DAQHs81gzrE= nLQw&midSig=3D2n7pzwUgZN1cc1&trk=3Deml-email_series_follow_newslett= er_02-newsletter_content_preview-0-readmore_button_&trkEmail=3Deml-emai= l_series_follow_newsletter_02-newsletter_content_preview-0-readmore_button_= -null-niwq2c~mmpznwex~y-null-null&eid=3Dniwq2c-mmpznwex-y" target=3D"_b= lank" tabindex=3D"-1" aria-hidden=3D"true" class=3D"no-underline" style=3D"= color: #0a66c2; cursor: pointer; display: inline-block; text-decoration: no= ne; -webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; text-decora= tion-line: none; width: 100%;"> <span class=3D"no-underline text-color-bran= d" style=3D"color: #0a66c2; text-decoration-line: none;"> Keep reading on L= inkedIn </span> </a> </td> </tr> </tbody> </table> </a> </td> </tr> </tbody= > </table> </td> </tr> </tbody> </table> </td> </tr> </tbody> </table> </td= > </tr> </tbody> </table> </td> </tr> </tbody> </table> </div> </td> </tr> = <tr> <td class=3D"bg-color-background-canvas p-3" style=3D"-webkit-text-siz= e-adjust: 100%; 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