{"id":56904,"date":"2022-10-31T06:00:56","date_gmt":"2022-10-30T22:00:56","guid":{"rendered":"http:\/\/learncmg.cn\/?p=56904"},"modified":"2022-10-31T06:00:56","modified_gmt":"2022-10-30T22:00:56","slug":"189%ef%bc%9a%e9%ab%98%e5%ad%94%e9%9a%99%e5%8e%8b%e5%8a%9b%e5%92%8c%e5%b0%8f%e5%ba%94%e5%8a%9b%e5%b7%ae%e7%9b%86%e5%9c%b0%e9%a1%b5%e5%b2%a9%e5%82%a8%e5%b1%82%e6%a8%a1%e6%8b%9f","status":"publish","type":"post","link":"http:\/\/learncmg.cn\/?p=56904","title":{"rendered":"189. \u9ad8\u5b54\u9699\u538b\u529b\u548c\u5c0f\u5e94\u529b\u5dee\u76c6\u5730\u9875\u5ca9\u50a8\u5c42\u6a21\u62df\uff08IMEX\uff09"},"content":{"rendered":"

Shale Reservoir Simulation in Basins with High Pore Pressure and Small Di\ufb00erential Stress<\/a><\/h3>\n
\u9875\u5ca9\u6cb9\u6c14\u751f\u4ea7\u662f\u5168\u7403\u80fd\u6e90\u4f9b\u5e94\u7684\u91cd\u8981\u6765\u6e90\u3002\u4ece\u9875\u5ca9\u50a8\u5c42\u5546\u4e1a\u5316\u5f00\u91c7\u6cb9\u6c14\u9700\u8981\u6c34\u5e73\u4e95\u94bb\u4e95\u3001\u6c34\u529b\u538b\u88c2\u548c\u591a\u7ea7\u5b8c\u4e95\u76f8\u7684\u7ec4\u5408\u6280\u672f\u3002\u8be5\u6280\u672f\u4ea7\u751f\u5bfc\u6d41\u6c34\u529b\u88c2\u7f1d\uff0c\u5e76\u4e0e\u5730\u5c42\u4e2d\u539f\u6709\u7684\u5929\u7136\u88c2\u7f1d\u548c\u5c42\u7406\u9762\u76f8\u4e92\u4f5c\u7528\u3002\u5fae\u5730\u9707\u7814\u7a76\u548c\u73b0\u573a\u8bd5\u9a8c\u53d1\u73b0\u590d\u6742\u6c34\u529b\u538b\u88c2\u51e0\u4f55\u5f62\u72b6\u53ef\u80fd\u5bfc\u81f4\u4e95\u7b52\u6d41\u52a8\u6548\u679c\u4e0d\u4f73\u3002 <\/span><\/h5>\n
\u672c\u7814\u7a76\u4f7f\u7528\u5546\u7528\u6a21\u62df\u5668\uff08CMG IMEX\uff09\u5206\u6790\u4e86\u4e09\u79cd\u6c34\u529b\u88c2\u7f1d\u51e0\u4f55\u5f62\u72b6\uff08\u201c\u573a\u666f\u201d\uff09\u5bf9\u8d85\u538b\u9875\u5ca9\u6cb9\u85cf\u4ea7\u91cf\u7684\u5f71\u54cd\u3002\u7b2c\u4e00\u65b9\u6848\u662f\u7406\u60f3\u7684\u5782\u76f4\u6c34\u529b\u538b\u88c2\u57fa\u7840\u65b9\u6848\u3002\u7b2c\u4e8c\u65b9\u6848\u662f\u7531\u5782\u76f4\u6c34\u529b\u538b\u88c2\u548c\u5782\u76f4\u6b21\u751f\u88c2\u7f1d\u7ec4\u6210\u7684\u6b63\u4ea4\u6c34\u529b\u538b\u88c2\u7f51\u7edc\u3002\u7b2c\u4e09\u65b9\u6848\u662f\u5782\u76f4\u6c34\u529b\u538b\u88c2\u548c\u6c34\u5e73\u5c42\u7406\u5e73\u9762\u538b\u88c2\u3002\u540c\u65f6\uff0c\u91c7\u7528\u66f4\u591a\u7684\u6a21\u62df\u6a21\u578b\u7814\u7a76\u4e0d\u540c\u88c2\u7f1d\u6027\u8d28\u5bf9\u6cb9\u6c14\u4ea7\u91cf\u7684\u5f71\u54cd\uff0c\u5982\u5929\u7136\u88c2\u7f1d\u65b9\u5411\u548c\u95f4\u8ddd\u3001\u6bcf\u7ea7\u538b\u529b\u88c2\u7f1d\u6570\u3001\u5782\u5411\u6b21\u751f\u88c2\u7f1d\u548c\u6c34\u5e73\u88c2\u7f1d\u6570\u91cf\u4ee5\u53ca\u88c2\u7f1d\u95ed\u5408\u673a\u5236\u3002<\/span><\/h5>\n
\u7ed3\u679c\u8868\u660e\uff0c\u8fc7\u5ea6\u7b80\u5316\u7684\u7406\u60f3\u5e73\u9762\u88c2\u7f1d\u4e0d\u80fd\u51c6\u786e\u8868\u5f81\u5404\u5411\u5f02\u6027\u9875\u5ca9\u533a\u6c34\u529b\u538b\u88c2\u88c2\u7f1d\u51e0\u4f55\u5f62\u72b6\uff0c\u5e76\u5bfc\u81f4\u6cb9\u6c14\u4ea7\u91cf\u9884\u6d4b\u4e0d\u51c6\u786e\u3002\u540c\u65f6\u8fd8\u53d1\u73b0\uff0c\u672a\u652f\u6491\u7684\u6c34\u5e73\u88c2\u7f1d\u964d\u4f4e\u4e86\u6cb9\u6c14\u4ea7\u91cf\uff0c\u800c\u5782\u5411\u6b21\u751f\u88c2\u7f1d\u63d0\u9ad8\u4e86\u521d\u59cb\u4ea7\u91cf\u3002 \u6c34\u5e73\u88c2\u7f1d\u662f\u53d1\u751f\u5728\u5177\u6709\u9ad8\u5b54\u9699\u538b\u529b\u548c\u9006\u65ad\u5c42\u8fc7\u6e21\u5e26\u533a\u57df\u7684\u4e00\u79cd\u7279\u6b8a\u60c5\u51b5\uff0c\u8fd9\u7c7b\u50a8\u5c42\u5b58\u5728\u4e8e<\/span>\u67d0\u4e9b<\/span>\u975e\u5e38\u89c4\u70c3\u6e90\u5ca9\u4e2d\uff0c\u5982\u5bbe\u5915\u6cd5\u5c3c\u4e9a\u5dde\u4e1c\u5317\u90e8\u548c\u5f17\u5409\u5c3c\u4e9a\u5dde\u897f\u5357\u90e8\u7684\u9a6c\u585e\u5362\u65af\u9875\u5ca9\uff0c\u4ee5\u53ca\u6c99\u7279\u963f\u62c9\u4f2f\u8d3e\u592b\u62c9\u76c6\u5730\u7684\u56fe\u74e6\u514b\u5c71\u5730\u5c42\u3002\u7814\u7a76\u7ed3\u679c\u8868\u660e\uff0c\u4e0e\u57fa\u7840\u65b9\u6848\u76f8\u6bd4\uff0c\u6c34\u5e73\u88c2\u7f1d\u53ef\u80fd\u4f1a\u4f7f\u7d2f\u79ef\u6cb9\u6c14\u4ea7\u91cf\u51cf\u5c1120%\uff0c\u521d\u59cb\u6cb9\u6c14\u4ea7\u91cf\u51cf\u5c1155%\u3002\u672c\u7814\u7a76\u5c55\u793a\u4e86\u72ec\u7279\u7684\u6570\u503c\u6a21\u62df\u6280\u672f\uff0c\u8bc4\u4f30\u4e0d\u540c\u53d8\u91cf\u5bf9\u4e95\u7b52\u751f\u4ea7\u6548\u679c\u7684\u5f71\u54cd\uff0c\u53ca\u4e0d\u540c\u6c34\u529b\u88c2\u7f1d\u51e0\u4f55\u5f62\u72b6\u5bf9\u6cb9\u6c14\u751f\u4ea7\u7684\u5f71\u54cd\u3002<\/span><\/h5>\n

\u6c99\u7279\u963f\u62c9\u4f2f\u738b\u56fd\u56fe\u74e6\u963f\u535c\u675c\u62c9\u56fd\u738b\u79d1\u6280\u5927\u5b66<\/span><\/strong><\/h4>\n

Abstract
\nHydrocarbon production from mudrock (\u201cshale\u201d) reservoirs is fundamental in the global energy supply. Extracting commercial amounts of hydrocarbons from shale plays requires a combination of horizontal well drilling, hydraulic fracturing, and multi-stage completions. This technology creates conductive hydrofractures that may interact with pre-existing natural fractures and bedding planes. Microseismic studies and \ufb01eld pilots have uncovered evidence of complex hydrofracture geometries that can lead to unsatisfactory wellbore \ufb02ow performance.
\nThis study examines the e\ufb00ects of three hydrofracture geometries (\u201dscenarios\u201d) on wellbore production in overpressured shale oil reservoirs using a commercial reservoir simulator (CMG IMEX). The \ufb01rst scenario is our reference case. It comprises ideal ized and vertical hydrofractures. The second scenario has an orthogonal hydrofracture network made up of vertical hydrofractures with perpendicular secondary fractures. The third scenario has vertical hydrofractures with horizontal bedding plane fractures. We generated additional simulation models that aim to capture the e\ufb00ect on hydrocarbon production of di\ufb00erent fracture properties, such as natural fracture orientation and spacing, number of hydrofractures per stage, number of perpendicular secondary fractures and horizontal fractures, and fracture closure mechanism. The results show that ideal planar fractures are an oversimpli\ufb01cation of the hydrofracture geometry in anisotropic shale plays.They fail to represent the complex geometry in reservoir simulation and lead to unexpected hydrocarbon production forecasting. They also show that the generation of unpropped horizontal fractures harms hydrocarbon productivity, while perpendicular secondary fractures enhance initial reservoir \ufb02uid production.
\nThe generation of horizontal hydrofractures is a particular scenario that may occur in reservoirs with high pore pressure and transitional strike-slip to reverse faulting regime. These conditions have been reported in unconventional source rock plays, like the Marcellus shale in northeast Pennsylvania and southwest Virginia, and the Tuwaiq Mountain formation in the Jafurah Basin in Saudi Arabia. Our \ufb01ndings reveal that the presence of horizontal hydrofractures might reduce the cumulative hydrocarbon production by 20%, and the initial hydrocarbon production by 55% compared to the reference case. Our work shows unique reservoir simulations that enable us to assess the impact of di\ufb00erent variables on wellbore production performance and understand the e\ufb00ects of varied hydrofracture geometries on hydrocarbon production.
\nKing Abdullah University of Science and Technology Thuwal, Kingdom of Saudi Arabia
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\n\"\u56fe\u793a,<\/p>\n

Figure 2.3: Fracturing fluid design.<\/p>\n

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Figure 2.4: Schematic diagram of hydraulic fractures and natural fractures interaction<\/p>\n

when using slick water fracturing uid (Map view).<\/p>\n

\"\u56fe\u7247\u5305\u542b<\/p>\n

Figure 4.6: Comparison between the gridding used in the MINC model and the<\/p>\n

LS-LR-DK model (map view).<\/p>\n

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\n\"\u56fe\u5f62\u7528\u6237\u754c\u9762,
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\n\"\u56fe\u793a\n\u63cf\u8ff0\u5df2\u81ea\u52a8\u751f\u6210\"<\/p>\n","protected":false},"excerpt":{"rendered":"

Shale Reservoir Simulation in Basins with High PorContinue Reading<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[159],"tags":[55],"_links":{"self":[{"href":"http:\/\/learncmg.cn\/index.php?rest_route=\/wp\/v2\/posts\/56904"}],"collection":[{"href":"http:\/\/learncmg.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/learncmg.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/learncmg.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/learncmg.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=56904"}],"version-history":[{"count":0,"href":"http:\/\/learncmg.cn\/index.php?rest_route=\/wp\/v2\/posts\/56904\/revisions"}],"wp:attachment":[{"href":"http:\/\/learncmg.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=56904"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/learncmg.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=56904"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/learncmg.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=56904"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}