Return-Path: Delivered-To: alvarochf@traceseis.com Received: from cs510.bluehost.com by cs510.bluehost.com with LMTP id iEwdBI5wrmnxBwAAWiBQxw (envelope-from ) for ; Mon, 09 Mar 2026 01:02:38 -0600 Return-path: Envelope-to: alvarochf@traceseis.com Delivery-date: Mon, 09 Mar 2026 01:02:38 -0600 Received: from maile-ad.linkedin.com ([108.174.3.196]:53865) by cs510.bluehost.com with esmtps (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1vzUdR-00000000Lv2-3crJ for alvarochf@traceseis.com; Mon, 09 Mar 2026 01:02:38 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=maile.linkedin.com; s=d2048-202308-0e; t=1773039746; bh=RBYYN5Q1nb0mtiUQMKJI1/JAnOLFkNp8nDRn5d3x190=; h=Date:From:Subject:MIME-Version:Content-Type:To:X-LinkedIn-Class: X-LinkedIn-Template:X-LinkedIn-fbl; b=U7X0Pbg9jLAcAzuGAVVP9uSItjexh9MCg8IQZ9MCmqwfEp/6xJByAY1CeRSlaW/hs tlvVAWw9TuNVG4ts405Yvr+d9OjhGiVMWmn8DqYVID7DTRsBkmtVkYuvDSmCYwmKD+ FOtykcBzoJSUgWu9gckVQpy0f4yyttCCU8qk7klDubFY+Na3F2stwGaP0oy7v9pyC4 hbwprXxgYa1JwYqPFrdpWgeQHHgRPUkZmtFnvyNUo+w5W78ats1C1oeq3y9Q1mRFVW zwcc/cfLdfIDPY2pX5tHLMbHNAnx5vFeHItaQdr8C+wdJV1t4W31zvsCGlAtsBelws 7O0FLbr6RpdRQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linkedin.com; s=d2048-202308-00; t=1773039746; bh=RBYYN5Q1nb0mtiUQMKJI1/JAnOLFkNp8nDRn5d3x190=; h=Date:From:Subject:MIME-Version:Content-Type:To:X-LinkedIn-Class: X-LinkedIn-Template:X-LinkedIn-fbl; b=C28CuOTT7rWTsSk/a8YrartoWjHUPWqyTJXDzcccHWepZjWGM0GcJ4XQkX3kvHxNs RYYy4xf4jromfDnwLy9uxbeV9X2gt6WQcS9sQJwJjT4fWb6+DQyYa3S18Hd+ihlUsR BfuLy0EDoBkodYwlmmD4dYoTi7HJX/nRDNFEo6QLEcfFSpBOLx7cMGvsC/7Y9mxkXM 7QDB6scjHdRLIQBtrrfQ+kaEchDlqFJXMJUb3B/Nprs2Z8a0qJanl25KKScFCGRX2l 5lzRlmtv2xrGNG3K8AW31skJQz4/uJ/hT1mUMQF48mW7LkFhORunGrWZo7QNG48oRh jgT2RdAx3ULHw== Date: Mon, 9 Mar 2026 07:02:26 +0000 (UTC) From: "Reservoir Solutions (RES) via LinkedIn" Message-ID: <169254035.22160688.1773039746918@lva1-app63282.prod.linkedin.com> Subject: Acoustic Impedance Inversion MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_22160683_348925455.1773039746915" To: "Alvaro Chaveste Jr." X-LinkedIn-Class: EMAIL-DEFAULT X-LinkedIn-Template: email_series_follow_newsletter_02 X-LinkedIn-fbl: m2-aszrsyjtt9w7y4n3s8smkq7cfj6fl1ntfdmamqdhgnoqo5rzgif95cawt7ef3vr7p7pjim8m039ju8k9cbcpd7fuiv0ii2iz5zekc6 X-LinkedIn-Id: niwq2c-mmiu1msw-u1 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_22160683_348925455.1773039746915 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/acoustic-impedance-inversion-reservoir-= solutions-tbgaf?lipi=3Durn%3Ali%3Apage%3Aemail_email_series_follow_newslett= er_02%3BBfRI1jwRSBysi7cH3GukFQ%3D%3D&midToken=3DAQHs81gzrEnLQw&midSig=3D2Y7= GJJ20p6Wc81&trk=3Deml-email_series_follow_newsletter_02-null-0-read_more_ba= nner_cta_&trkEmail=3Deml-email_series_follow_newsletter_02-null-0-read_more= _banner_cta_-null-niwq2c~mmiu1msw~u1-null-null&eid=3Dniwq2c-mmiu1msw-u1 =20 1. Introduction Acoustic Impedance (AI) inversion is one of the most import= ant techniques used in seismic interpretation and reservoir characterizatio= n. It converts seismic reflection data into quantitative rock-property info= rmation that helps geoscientists understand subsurface geology more accurat= ely. Instead of interpreting only seismic amplitudes, inversion transforms = seismic data into acoustic impedance values. These values are closely relat= ed to lithology, porosity, and fluid content, making inversion a key tool i= n hydrocarbon exploration and development. Acoustic impedance inversion bri= dges the gap between seismic data and well log measurements, allowing inter= preters to estimate rock properties away from wells. 2. What is Acoustic Im= pedance? Acoustic impedance is a physical property of rocks that describes = how seismic waves travel through a formation. It is defined as: Acoustic Im= pedance (AI) =3D Density =C3=97 P-wave Velocity Where: Density =3D Rock den= sity P-wave Velocity =3D Compressional wave velocity Different rock layers = have different acoustic impedance values. When a seismic wave encounters a = boundary between two layers with different impedance values, part of the wa= ve is reflected back to the surface. These reflections are what seismic sur= veys record. The greater the contrast in impedance between two layers, the = stronger the seismic reflection. 3. Why Inversion is Needed Seismic data re= cords reflections caused by contrasts in acoustic impedance rather than the= impedance itself. As a result, the seismic section mainly shows interfaces= between layers, not the actual rock properties. Inversion is used to recon= struct the impedance model of the subsurface from seismic reflection data. = The main objectives of acoustic impedance inversion include: =E2=80=A2 Esti= mating rock properties away from well locations =E2=80=A2 Improving reservo= ir characterization =E2=80=A2 Identifying lithological variations =E2=80=A2= Detecting potential hydrocarbon-bearing zones =E2=80=A2 Providing inputs f= or further petrophysical analysis By converting seismic amplitudes into imp= edance values, interpreters obtain a more geological representation of the = subsurface. 4. Types of Acoustic Impedance Inversion Several inversion tech= niques are used in seismic interpretation. The most common ones include: Po= st-Stack Inversion This method uses stacked seismic data and is widely used= due to its simplicity and stability. It provides a single acoustic impedan= ce model and is commonly applied for lithology interpretation and reservoir= delineation. Pre-Stack Inversion Pre-stack inversion uses seismic data bef= ore stacking and can estimate multiple elastic properties such as: =E2=80= =A2 Acoustic Impedance (AI) =E2=80=A2 Shear Impedance (SI) =E2=80=A2 Densit= y This method provides more detailed reservoir information and helps differ= entiate between lithology and fluid effects. Sparse Spike Inversion This te= chnique assumes that the reflectivity series is sparse, meaning reflections= occur mainly at geological boundaries. It produces high-resolution impedan= ce models and is commonly used in detailed reservoir studies. 5. Workflow o= f Acoustic Impedance Inversion A typical inversion workflow includes severa= l steps: Well Log Preparation Well logs such as density and sonic logs are = used to calculate acoustic impedance. These logs provide the ground truth f= or calibration. Wavelet Extraction A seismic wavelet must be extracted from= the seismic data or estimated from well data. The wavelet represents how s= eismic energy propagates through the subsurface. Seismic-Well Tie Seismic d= ata is tied to well logs to ensure that seismic reflections match the geolo= gical information from the wells. Initial Model Building A low-frequency im= pedance model is created using well logs and geological interpretation. Thi= s model provides the background trend required for inversion. Running the I= nversion The inversion algorithm combines seismic data with the initial mod= el to generate an acoustic impedance volume. Quality Control The final impe= dance results are compared with well data to verify the accuracy of the inv= ersion. 6. Applications in Reservoir Characterization Acoustic impedance in= version is widely used in reservoir studies. Some key applications include:= Lithology Identification Different rock types often have distinct impedanc= e values. Sandstones typically have lower impedance compared to shales, all= owing interpreters to identify potential reservoir zones. Porosity Estimati= on In many reservoirs, acoustic impedance correlates with porosity. Lower i= mpedance values may indicate higher porosity zones. Reservoir Delineation I= nversion helps define reservoir boundaries more clearly than conventional s= eismic amplitude interpretation. Facies Analysis Impedance volumes can be u= sed to classify different geological facies within the reservoir. 7. Limita= tions of Acoustic Impedance Inversion Despite its advantages, acoustic impe= dance inversion has several limitations. The results strongly depend on the= quality of seismic data and well logs. Poor seismic resolution or incorrec= t wavelet estimation can lead to unreliable impedance models. Another limit= ation is the lack of low-frequency information in seismic data. This is why= inversion requires a low-frequency model built from well data. In addition= , acoustic impedance alone may not always distinguish between lithology and= fluid effects. In such cases, elastic inversion or AVO analysis may be req= uired. 8. Conclusion Acoustic impedance inversion is a fundamental techniqu= e in modern seismic interpretation and reservoir characterization. By conve= rting seismic reflection data into impedance values, it provides a more dir= ect link between seismic observations and rock properties. When properly ca= librated with well logs and integrated with geological interpretation, inve= rsion significantly improves the understanding of subsurface structures and= reservoir distribution. As seismic acquisition and inversion algorithms co= ntinue to advance, acoustic impedance inversion remains a critical tool for= reducing exploration risk and improving reservoir development strategies. Keep reading on LinkedIn https://www.linkedin.com/comm/pulse/acoustic-impedance-inversion-reservoir-= solutions-tbgaf?lipi=3Durn%3Ali%3Apage%3Aemail_email_series_follow_newslett= er_02%3BBfRI1jwRSBysi7cH3GukFQ%3D%3D&midToken=3DAQHs81gzrEnLQw&midSig=3D2Y7= GJJ20p6Wc81&trk=3Deml-email_series_follow_newsletter_02-newsletter_content_= preview_text-0-readmore_button_&trkEmail=3Deml-email_series_follow_newslett= er_02-newsletter_content_preview_text-0-readmore_button_-null-niwq2c~mmiu1m= sw~u1-null-null&eid=3Dniwq2c-mmiu1msw-u1 =20 =20 ---------------------------------------- This email was intended for Alvaro Chaveste Jr. (TraceSeis, Inc: Mapping th= e Subsurface with Measured Precision.) 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-ms-text-size-adjust: 100%; = mso-table-lspace: 0pt; mso-table-rspace: 0pt; padding-left: 24px; padding-r= ight: 24px; padding-top: 8px;"> <table role=3D"presentation" valign=3D"top"= border=3D"0" cellspacing=3D"0" cellpadding=3D"0" width=3D"100%" class=3D"f= ont-sans" style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adjust: 10= 0%; mso-table-lspace: 0pt; mso-table-rspace: 0pt; font-family: -apple-syste= m, system-ui, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', 'Fi= ra Sans', Ubuntu, Oxygen, 'Oxygen Sans', Cantarell, 'Droid Sans', 'Apple Co= lor Emoji', 'Segoe UI Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Lucida = Grande', Helvetica, Arial, sans-serif;"> <tbody> <tr> <td valign=3D"top" cl= ass=3D"pr-1 w-6" style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adj= ust: 100%; mso-table-lspace: 0pt; mso-table-rspace: 0pt; width: 48px; paddi= ng-right: 8px;" width=3D"48"> <a href=3D"https://www.linkedin.com/comm/news= letters/7221979031120805889?lipi=3Durn%3Ali%3Apage%3Aemail_email_series_fol= low_newsletter_02%3BBfRI1jwRSBysi7cH3GukFQ%3D%3D&midToken=3DAQHs81gzrEn= LQw&midSig=3D2Y7GJJ20p6Wc81&trk=3Deml-email_series_follow_newslette= r_02-newsletter_entity_lockup-0-newsletter_entity_cta&trkEmail=3Deml-em= ail_series_follow_newsletter_02-newsletter_entity_lockup-0-newsletter_entit= y_cta-null-niwq2c~mmiu1msw~u1-null-null&eid=3Dniwq2c-mmiu1msw-u1" targe= t=3D"_blank" style=3D"color: #0a66c2; cursor: pointer; display: inline-bloc= k; text-decoration: none; -webkit-text-size-adjust: 100%; -ms-text-size-adj= ust: 100%;"> <img class=3D"inline-block relative bg-color-entity-ghost-back= ground w-6 h-6 rounded-md" src=3D"https://media.licdn.com/dms/image/v2/D4D1= 2AQGt2WJKsDDmdw/series-logo_image-shrink_100_100/series-logo_image-shrink_1= 00_100/0/1723371514382?e=3D1774483200&v=3Dbeta&t=3Dy4J9VTOjnFI5-g3I= 4oYriminXEluCSVqnbrAAA2H3zo" alt=3D"Open Reservoir Solutions (RES)" style= =3D"outline: none; text-decoration: none; -ms-interpolation-mode: bicubic; = position: relative; display: inline-block; height: 48px; width: 48px; borde= r-radius: 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-adjust: 100%; mso-table-lspace: 0pt; mso-table-rspace: 0pt;"> <table = role=3D"presentation" valign=3D"top" border=3D"0" cellspacing=3D"0" cellpad= ding=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: 10= 0%; mso-table-lspace: 0pt; mso-table-rspace: 0pt;"> <a href=3D"https://www.= linkedin.com/comm/newsletters/7221979031120805889?lipi=3Durn%3Ali%3Apage%3A= email_email_series_follow_newsletter_02%3BBfRI1jwRSBysi7cH3GukFQ%3D%3D&= midToken=3DAQHs81gzrEnLQw&midSig=3D2Y7GJJ20p6Wc81&trk=3Deml-email_s= eries_follow_newsletter_02-newsletter_entity_lockup-0-newsletter_entity_cta= &trkEmail=3Deml-email_series_follow_newsletter_02-newsletter_entity_loc= kup-0-newsletter_entity_cta-null-niwq2c~mmiu1msw~u1-null-null&eid=3Dniw= q2c-mmiu1msw-u1" target=3D"_blank" class=3D"no-underline" style=3D"color: #= 0a66c2; cursor: pointer; display: inline-block; text-decoration: none; -web= kit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; text-decoration-lin= e: none;"> <div class=3D"pb-0.5" style=3D"padding-bottom: 4px;"> <span clas= s=3D"text-md font-bold text-color-text break-words leading-regular" style= =3D"overflow-wrap: break-word; font-size: 16px; font-weight: 600; line-heig= ht: 1.25; color: 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"https://www.linkedin.com/comm/newsletters/7221979031120805889?lipi= =3Durn%3Ali%3Apage%3Aemail_email_series_follow_newsletter_02%3BBfRI1jwRSBys= i7cH3GukFQ%3D%3D&midToken=3DAQHs81gzrEnLQw&midSig=3D2Y7GJJ20p6Wc81&= amp;trk=3Deml-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~mmiu1msw~u1-nu= ll-null&eid=3Dniwq2c-mmiu1msw-u1" target=3D"_blank" class=3D"no-underli= ne" style=3D"color: #0a66c2; cursor: pointer; display: inline-block; text-d= ecoration: none; -webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%= ; text-decoration-line: none;"> <span class=3D"text-xs text-color-text-low-= emphasis leading-regular" style=3D"font-size: 12px; line-height: 1.25; colo= r: rgba(0, 0, 0, 0.6);"> Reservoir Solutions delivers cutting-edge petroleu= m services, training optimizing reservoir=E2=80=A6 </span> </a> </td> </tr>= </tbody> </table> </td> </tr> </tbody> </table> </td> </tr> <tr data-test-= id=3D"newsletter-content-preview"> <td class=3D"px-3 pt-2" style=3D"-webkit= -text-size-adjust: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt;= mso-table-rspace: 0pt; padding-left: 24px; padding-right: 24px; padding-to= p: 16px;"> <table role=3D"presentation" valign=3D"top" border=3D"0" cellspa= cing=3D"0" cellpadding=3D"0" width=3D"100%" style=3D"-webkit-text-size-adju= st: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; mso-table-rspa= ce: 0pt;"> <tbody> <tr> <td class=3D"overflow-hidden " style=3D"-webkit-tex= t-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" border=3D"0" cellspacing=3D"0" cellpadding=3D"0" width=3D"100%" st= yle=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; mso-tabl= e-lspace: 0pt; mso-table-rspace: 0pt;"> <tbody> <tr> <td style=3D"-webkit-t= ext-size-adjust: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; m= so-table-rspace: 0pt;"> <a href=3D"https://www.linkedin.com/comm/pulse/acou= stic-impedance-inversion-reservoir-solutions-tbgaf?lipi=3Durn%3Ali%3Apage%3= Aemail_email_series_follow_newsletter_02%3BBfRI1jwRSBysi7cH3GukFQ%3D%3D&= ;midToken=3DAQHs81gzrEnLQw&midSig=3D2Y7GJJ20p6Wc81&trk=3Deml-email_= series_follow_newsletter_02-newsletter_content_preview-0-headline_&trkE= mail=3Deml-email_series_follow_newsletter_02-newsletter_content_preview-0-h= eadline_-null-niwq2c~mmiu1msw~u1-null-null&eid=3Dniwq2c-mmiu1msw-u1" ta= rget=3D"_blank" class=3D"w-full" style=3D"color: #0a66c2; cursor: pointer; = display: inline-block; text-decoration: none; -webkit-text-size-adjust: 100= %; -ms-text-size-adjust: 100%; width: 100%;"> <img class=3D"block w-full as= pect-[744/400] object-cover overflow-hidden" data-test-id=3D"newsletter-con= tent-preview__cover-image" alt=3D"Newsletter cover image" src=3D"https://me= dia.licdn.com/dms/image/v2/D4D12AQEBTK-ouiuuGw/article-cover_image-shrink_7= 20_1280/B4DZzQI6Y8HYAI-/0/1773018567675?e=3D1774483200&v=3Dbeta&t= =3D1BxDaF3sUJBf0vMji08QV336imdvNQ7A5EnFXZ2EhXQ" style=3D"outline: none; tex= t-decoration: none; -ms-interpolation-mode: bicubic; display: block; aspect= -ratio: 744/400; width: 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-adjust: 100%; mso-table-lspace: 0pt; mso-table-rspace: 0pt; = padding-top: 16px; padding-bottom: 16px;"> <table role=3D"presentation" val= ign=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-t= able-lspace: 0pt; mso-table-rspace: 0pt;"> <tbody> <tr> <td style=3D"-webki= t-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/a= coustic-impedance-inversion-reservoir-solutions-tbgaf?lipi=3Durn%3Ali%3Apag= e%3Aemail_email_series_follow_newsletter_02%3BBfRI1jwRSBysi7cH3GukFQ%3D%3D&= amp;midToken=3DAQHs81gzrEnLQw&midSig=3D2Y7GJJ20p6Wc81&trk=3Deml-ema= il_series_follow_newsletter_02-newsletter_content_preview-0-title_&trkE= mail=3Deml-email_series_follow_newsletter_02-newsletter_content_preview-0-t= itle_-null-niwq2c~mmiu1msw~u1-null-null&eid=3Dniwq2c-mmiu1msw-u1" targe= t=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-adjust: 100%; -ms-text-size-adjust: 100%; margin: 0px; = font-size: 14px; font-weight: 500; color: #282828; text-decoration-line: no= ne;"> <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-u= i, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', 'Fira Sans', U= buntu, Oxygen, 'Oxygen Sans', Cantarell, 'Droid Sans', 'Apple Color Emoji',= 'Segoe UI Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Lucida Grande', He= lvetica, Arial, sans-serif; font-size: 24px; font-weight: 600; line-height:= 1.25; color: rgba(0, 0, 0, 0.9);"> Acoustic Impedance Inversion </h2> </a>= </td> </tr> <tr> <td style=3D"-webkit-text-size-adjust: 100%; -ms-text-siz= e-adjust: 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%" data-test-id=3D"newsletter-author-lockup-redesign" cl= ass=3D"mt-1 mb-2" style=3D"-webkit-text-size-adjust: 100%; 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margin-left: 8px; text-decoration-line: none;"> <span cla= ss=3D"font-sans font-bold text-sm mb-3 text-color-text-low-emphasis leading= -regular" style=3D"margin-bottom: 24px; 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 Grande', H= elvetica, Arial, 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-lspa= ce: 0pt; mso-table-rspace: 0pt; padding-bottom: 8px;"> <div class=3D"p-3 bg= -color-surface-tint rounded-md font-sans" data-test-id=3D"newsletter-cta-ba= nner" style=3D"border-radius: 8px; background-color: #f5f7f9; padding: 24px= ; font-family: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Ro= boto, 'Helvetica Neue', 'Fira Sans', Ubuntu, Oxygen, 'Oxygen Sans', Cantare= ll, 'Droid Sans', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Emoji', = 'Segoe UI Symbol', 'Lucida Grande', Helvetica, Arial, sans-serif;"> <div cl= ass=3D"mb-1.5" style=3D"margin-bottom: 12px;"> <span class=3D"text-md leadi= ng-regular font-bold text-color-text" style=3D"font-size: 16px; font-weight= : 600; line-height: 1.25; color: rgba(0, 0, 0, 0.9);"> Read this article on= LinkedIn to join the conversation </span> </div> <table role=3D"presentati= on" 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"-w= ebkit-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-lspace: 0pt; mso-table-rspace: 0pt;"> <a href=3D"https://www.link= edin.com/comm/pulse/acoustic-impedance-inversion-reservoir-solutions-tbgaf?= lipi=3Durn%3Ali%3Apage%3Aemail_email_series_follow_newsletter_02%3BBfRI1jwR= SBysi7cH3GukFQ%3D%3D&midToken=3DAQHs81gzrEnLQw&midSig=3D2Y7GJJ20p6W= c81&trk=3Deml-email_series_follow_newsletter_02-newsletter_content_prev= iew-0-read_more_banner_cta_&trkEmail=3Deml-email_series_follow_newslett= er_02-newsletter_content_preview-0-read_more_banner_cta_-null-niwq2c~mmiu1m= sw~u1-null-null&eid=3Dniwq2c-mmiu1msw-u1" target=3D"_blank" aria-label= =3D"Open this article on LinkedIn" class=3D"align-top no-underline " style= =3D"color: #0a66c2; cursor: pointer; display: inline-block; text-decoration= : none; -webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%; vertica= l-align: top; text-decoration-line: none;"> <table role=3D"presentation" va= lign=3D"top" border=3D"0" cellspacing=3D"0" cellpadding=3D"0" width=3D"auto= " class=3D"border-separate " style=3D"-webkit-text-size-adjust: 100%; -ms-t= ext-size-adjust: 100%; 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" style=3D"-webkit-text-size-adjust: 100%; -ms-text-size-adjus= t: 100%; mso-table-lspace: 0pt; mso-table-rspace: 0pt; height: min-content;= border-radius: 24px; padding-top: 7px; padding-bottom: 7px; padding-left: = 16px; padding-right: 16px; text-align: center; font-size: 14px; font-weight= : 600; cursor: pointer; text-decoration-line: none; background-color: #0a66= c2; color: #ffffff; border-width: 1px; border-style: solid; border-color: #= 0a66c2; line-height: 1.25; min-height: auto !important; box-shadow: 0 0 #00= 00, 0 0 #0000, 0 0 #0000 !important;"> <a href=3D"https://www.linkedin.com/= comm/pulse/acoustic-impedance-inversion-reservoir-solutions-tbgaf?lipi=3Dur= n%3Ali%3Apage%3Aemail_email_series_follow_newsletter_02%3BBfRI1jwRSBysi7cH3= GukFQ%3D%3D&midToken=3DAQHs81gzrEnLQw&midSig=3D2Y7GJJ20p6Wc81&t= rk=3Deml-email_series_follow_newsletter_02-newsletter_content_preview-0-rea= d_more_banner_cta_&trkEmail=3Deml-email_series_follow_newsletter_02-new= sletter_content_preview-0-read_more_banner_cta_-null-niwq2c~mmiu1msw~u1-nul= l-null&eid=3Dniwq2c-mmiu1msw-u1" target=3D"_blank" tabindex=3D"-1" aria= -hidden=3D"true" class=3D"no-underline" style=3D"color: #0a66c2; cursor: po= inter; display: inline-block; text-decoration: none; -webkit-text-size-adju= st: 100%; -ms-text-size-adjust: 100%; text-decoration-line: none;"> <span c= lass=3D"no-underline text-white" style=3D"color: #ffffff; text-decoration-l= ine: none;"> Read on LinkedIn </span> </a> </td> </tr> </tbody> </table> </= a> </td> </tr> </tbody> </table> </div> </td> </tr> <tr data-test-id=3D"new= sletter-content-preview--content"> <td class=3D"font-sans text-md leading-o= pen text-system-gray-90" style=3D"-webkit-text-size-adjust: 100%; -ms-text-= size-adjust: 100%; mso-table-lspace: 0pt; mso-table-rspace: 0pt; font-famil= y: -apple-system, system-ui, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helve= tica Neue', 'Fira Sans', Ubuntu, Oxygen, 'Oxygen Sans', Cantarell, 'Droid S= ans', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Emoji', 'Segoe UI Sy= mbol', '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; m= argin: 0px; margin-top: 12px; font-size: 16px; line-height: 1.5;"> <span cl= ass=3D"font-[700]" data-test-id=3D"little-text-block" style=3D"font-weight:= 700;">1. Introduction</span> </p> </div> <div data-test-id=3D"publishing-t= ext-block"> <p class=3D"m-0 mt-1.5 text-md leading-open" style=3D"font-weig= ht: 400; margin: 0px; margin-top: 12px; font-size: 16px; line-height: 1.5;"= > <span class data-test-id=3D"little-text-block">Acoustic Impedance (AI) in= version is one of the most important techniques used in seismic interpretat= ion and reservoir characterization. It converts seismic reflection data int= o quantitative rock-property information that helps geoscientists understan= d subsurface geology more accurately.</span> </p> </div> <div data-test-id= =3D"publishing-text-block"> <p class=3D"m-0 mt-1.5 text-md leading-open" st= yle=3D"font-weight: 400; margin: 0px; margin-top: 12px; font-size: 16px; li= ne-height: 1.5;"> <span class data-test-id=3D"little-text-block">Instead of= interpreting only seismic amplitudes, inversion transforms seismic data in= to acoustic impedance values. These values are closely related to lithology= , porosity, and fluid content, making inversion a key tool in hydrocarbon e= xploration and development.</span> </p> </div> <div data-test-id=3D"publish= ing-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">Acoustic impedance in= version bridges the gap between seismic data and well log measurements, all= owing interpreters to estimate rock properties away from wells.</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-top: 8px; margin-bottom: 8px; = height: 1px; border-width: 0; background-color: #8c8c8c;"> <div data-test-i= d=3D"publishing-text-block"> <p class=3D"m-0 mt-1.5 text-md leading-open" s= tyle=3D"font-weight: 400; margin: 0px; margin-top: 12px; font-size: 16px; l= ine-height: 1.5;"> <span class=3D"font-[700]" data-test-id=3D"little-text-b= lock" style=3D"font-weight: 700;">2. What is Acoustic Impedance?</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 data-test-id=3D"lit= tle-text-block">Acoustic impedance is a physical property of rocks that des= cribes how seismic waves travel through a formation. It is defined as:</spa= n> </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; margi= n-top: 12px; font-size: 16px; line-height: 1.5;"> <span class data-test-id= =3D"little-text-block">Acoustic Impedance (AI) =3D Density =C3=97 P-wave Ve= locity</span> </p> </div> <div data-test-id=3D"publishing-text-block"> <p c= lass=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 da= ta-test-id=3D"little-text-block">Where:</span> </p> </div> <div data-test-i= d=3D"publishing-text-block"> <p class=3D"m-0 mt-1.5 text-md leading-open" s= tyle=3D"font-weight: 400; margin: 0px; margin-top: 12px; font-size: 16px; l= ine-height: 1.5;"> <span class data-test-id=3D"little-text-block">Density = =3D Rock density P-wave Velocity =3D Compressional wave velocity</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 data-test-id=3D"lit= tle-text-block">Different rock layers have different acoustic impedance val= ues. When a seismic wave encounters a boundary between two layers with diff= erent impedance values, part of the wave is reflected back to the surface. = These reflections are what seismic surveys record.</span> </p> </div> <div = data-test-id=3D"publishing-text-block"> <p class=3D"m-0 mt-1.5 text-md lead= ing-open" style=3D"font-weight: 400; margin: 0px; margin-top: 12px; font-si= ze: 16px; line-height: 1.5;"> <span class data-test-id=3D"little-text-block= ">The greater the contrast in impedance between two layers, the stronger th= e seismic reflection.</span> </p> </div> <hr data-test-id=3D"publishing-div= ider-block" class=3D"my-1 h-[1px] border-0 bg-system-gray-60" style=3D"marg= in-top: 8px; margin-bottom: 8px; height: 1px; border-width: 0; background-c= olor: #8c8c8c;"> <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; mar= gin-top: 12px; font-size: 16px; line-height: 1.5;"> <span class=3D"font-[70= 0]" data-test-id=3D"little-text-block" style=3D"font-weight: 700;">3. Why I= nversion is Needed</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;"> <s= pan class data-test-id=3D"little-text-block">Seismic data records reflectio= ns caused by contrasts in acoustic impedance rather than the impedance itse= lf. As a result, the seismic section mainly shows interfaces between layers= , not the actual rock properties.</span> </p> </div> <span>...</span> </td>= </tr> <tr> <td class=3D"pt-2 no-underline" style=3D"-webkit-text-size-adju= st: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; mso-table-rspa= ce: 0pt; padding-top: 16px; text-decoration-line: none;"> <table role=3D"pr= esentation" valign=3D"top" border=3D"0" cellspacing=3D"0" cellpadding=3D"0"= width=3D"100%" class=3D"email-button series-content-preview__bottom-cta" d= ata-test-id=3D"email-button" style=3D"-webkit-text-size-adjust: 100%; -ms-t= ext-size-adjust: 100%; mso-table-lspace: 0pt; mso-table-rspace: 0pt;"> <tbo= dy> <tr> <td valign=3D"middle" align=3D"left" style=3D"-webkit-text-size-ad= just: 100%; -ms-text-size-adjust: 100%; mso-table-lspace: 0pt; mso-table-rs= pace: 0pt;"> <a href=3D"https://www.linkedin.com/comm/pulse/acoustic-impeda= nce-inversion-reservoir-solutions-tbgaf?lipi=3Durn%3Ali%3Apage%3Aemail_emai= l_series_follow_newsletter_02%3BBfRI1jwRSBysi7cH3GukFQ%3D%3D&midToken= =3DAQHs81gzrEnLQw&midSig=3D2Y7GJJ20p6Wc81&trk=3Deml-email_series_fo= llow_newsletter_02-newsletter_content_preview-0-readmore_button_&trkEma= il=3Deml-email_series_follow_newsletter_02-newsletter_content_preview-0-rea= dmore_button_-null-niwq2c~mmiu1msw~u1-null-null&eid=3Dniwq2c-mmiu1msw-u= 1" target=3D"_blank" aria-label=3D"Open Reservoir Solutions (RES) on Linked= In" class=3D"align-top no-underline " style=3D"color: #0a66c2; 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